47372caac5
When the timecode value is in counter mode then it is important to use the timescale and frameduration to calculate the timecode fps. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
4310 lines
144 KiB
C
4310 lines
144 KiB
C
/*
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* MOV demuxer
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* Copyright (c) 2001 Fabrice Bellard
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* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
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*
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* first version by Francois Revol <revol@free.fr>
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* seek function by Gael Chardon <gael.dev@4now.net>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <inttypes.h>
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#include <limits.h>
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#include <stdint.h>
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#include "libavutil/attributes.h"
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#include "libavutil/channel_layout.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/intfloat.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/time_internal.h"
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#include "libavutil/avstring.h"
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#include "libavutil/dict.h"
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#include "libavutil/display.h"
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#include "libavutil/opt.h"
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#include "libavutil/timecode.h"
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#include "libavcodec/ac3tab.h"
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#include "avformat.h"
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#include "internal.h"
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#include "avio_internal.h"
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#include "riff.h"
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#include "isom.h"
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#include "libavcodec/get_bits.h"
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#include "id3v1.h"
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#include "mov_chan.h"
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#include "replaygain.h"
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#if CONFIG_ZLIB
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#include <zlib.h>
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#endif
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#include "qtpalette.h"
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#undef NDEBUG
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#include <assert.h>
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/* those functions parse an atom */
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/* links atom IDs to parse functions */
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typedef struct MOVParseTableEntry {
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uint32_t type;
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int (*parse)(MOVContext *ctx, AVIOContext *pb, MOVAtom atom);
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} MOVParseTableEntry;
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static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom);
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static int mov_read_mfra(MOVContext *c, AVIOContext *f);
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static int mov_metadata_track_or_disc_number(MOVContext *c, AVIOContext *pb,
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unsigned len, const char *key)
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{
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char buf[16];
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short current, total = 0;
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avio_rb16(pb); // unknown
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current = avio_rb16(pb);
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if (len >= 6)
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total = avio_rb16(pb);
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if (!total)
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snprintf(buf, sizeof(buf), "%d", current);
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else
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snprintf(buf, sizeof(buf), "%d/%d", current, total);
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c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
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av_dict_set(&c->fc->metadata, key, buf, 0);
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return 0;
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}
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static int mov_metadata_int8_bypass_padding(MOVContext *c, AVIOContext *pb,
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unsigned len, const char *key)
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{
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/* bypass padding bytes */
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avio_r8(pb);
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avio_r8(pb);
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avio_r8(pb);
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c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
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av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
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return 0;
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}
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static int mov_metadata_int8_no_padding(MOVContext *c, AVIOContext *pb,
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unsigned len, const char *key)
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{
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c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
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av_dict_set_int(&c->fc->metadata, key, avio_r8(pb), 0);
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return 0;
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}
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static int mov_metadata_gnre(MOVContext *c, AVIOContext *pb,
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unsigned len, const char *key)
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{
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short genre;
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avio_r8(pb); // unknown
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genre = avio_r8(pb);
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if (genre < 1 || genre > ID3v1_GENRE_MAX)
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return 0;
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c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
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av_dict_set(&c->fc->metadata, key, ff_id3v1_genre_str[genre-1], 0);
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return 0;
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}
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static const uint32_t mac_to_unicode[128] = {
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0x00C4,0x00C5,0x00C7,0x00C9,0x00D1,0x00D6,0x00DC,0x00E1,
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0x00E0,0x00E2,0x00E4,0x00E3,0x00E5,0x00E7,0x00E9,0x00E8,
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0x00EA,0x00EB,0x00ED,0x00EC,0x00EE,0x00EF,0x00F1,0x00F3,
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0x00F2,0x00F4,0x00F6,0x00F5,0x00FA,0x00F9,0x00FB,0x00FC,
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0x2020,0x00B0,0x00A2,0x00A3,0x00A7,0x2022,0x00B6,0x00DF,
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0x00AE,0x00A9,0x2122,0x00B4,0x00A8,0x2260,0x00C6,0x00D8,
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0x221E,0x00B1,0x2264,0x2265,0x00A5,0x00B5,0x2202,0x2211,
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0x220F,0x03C0,0x222B,0x00AA,0x00BA,0x03A9,0x00E6,0x00F8,
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0x00BF,0x00A1,0x00AC,0x221A,0x0192,0x2248,0x2206,0x00AB,
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0x00BB,0x2026,0x00A0,0x00C0,0x00C3,0x00D5,0x0152,0x0153,
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0x2013,0x2014,0x201C,0x201D,0x2018,0x2019,0x00F7,0x25CA,
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0x00FF,0x0178,0x2044,0x20AC,0x2039,0x203A,0xFB01,0xFB02,
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0x2021,0x00B7,0x201A,0x201E,0x2030,0x00C2,0x00CA,0x00C1,
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0x00CB,0x00C8,0x00CD,0x00CE,0x00CF,0x00CC,0x00D3,0x00D4,
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0xF8FF,0x00D2,0x00DA,0x00DB,0x00D9,0x0131,0x02C6,0x02DC,
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0x00AF,0x02D8,0x02D9,0x02DA,0x00B8,0x02DD,0x02DB,0x02C7,
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};
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static int mov_read_mac_string(MOVContext *c, AVIOContext *pb, int len,
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char *dst, int dstlen)
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{
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char *p = dst;
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char *end = dst+dstlen-1;
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int i;
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for (i = 0; i < len; i++) {
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uint8_t t, c = avio_r8(pb);
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if (c < 0x80 && p < end)
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*p++ = c;
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else if (p < end)
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PUT_UTF8(mac_to_unicode[c-0x80], t, if (p < end) *p++ = t;);
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}
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*p = 0;
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return p - dst;
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}
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static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
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{
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AVPacket pkt;
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AVStream *st;
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MOVStreamContext *sc;
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enum AVCodecID id;
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int ret;
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switch (type) {
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case 0xd: id = AV_CODEC_ID_MJPEG; break;
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case 0xe: id = AV_CODEC_ID_PNG; break;
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case 0x1b: id = AV_CODEC_ID_BMP; break;
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default:
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av_log(c->fc, AV_LOG_WARNING, "Unknown cover type: 0x%x.\n", type);
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avio_skip(pb, len);
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return 0;
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}
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st = avformat_new_stream(c->fc, NULL);
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if (!st)
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return AVERROR(ENOMEM);
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sc = av_mallocz(sizeof(*sc));
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if (!sc)
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return AVERROR(ENOMEM);
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st->priv_data = sc;
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ret = av_get_packet(pb, &pkt, len);
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if (ret < 0)
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return ret;
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st->disposition |= AV_DISPOSITION_ATTACHED_PIC;
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st->attached_pic = pkt;
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st->attached_pic.stream_index = st->index;
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st->attached_pic.flags |= AV_PKT_FLAG_KEY;
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st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
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st->codec->codec_id = id;
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return 0;
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}
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static int mov_metadata_loci(MOVContext *c, AVIOContext *pb, unsigned len)
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{
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char language[4] = { 0 };
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char buf[100];
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uint16_t langcode = 0;
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double longitude, latitude;
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const char *key = "location";
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if (len < 4 + 2 + 1 + 1 + 4 + 4 + 4)
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return AVERROR_INVALIDDATA;
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avio_skip(pb, 4); // version+flags
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langcode = avio_rb16(pb);
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ff_mov_lang_to_iso639(langcode, language);
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len -= 6;
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len -= avio_get_str(pb, len, buf, sizeof(buf)); // place name
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if (len < 1)
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return AVERROR_INVALIDDATA;
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avio_skip(pb, 1); // role
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len -= 1;
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if (len < 14)
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return AVERROR_INVALIDDATA;
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longitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
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latitude = ((int32_t) avio_rb32(pb)) / (float) (1 << 16);
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// Try to output in the same format as the ?xyz field
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snprintf(buf, sizeof(buf), "%+08.4f%+09.4f/", latitude, longitude);
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if (*language && strcmp(language, "und")) {
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char key2[16];
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snprintf(key2, sizeof(key2), "%s-%s", key, language);
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av_dict_set(&c->fc->metadata, key2, buf, 0);
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}
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c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
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return av_dict_set(&c->fc->metadata, key, buf, 0);
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}
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static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
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{
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char tmp_key[5];
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char key2[32], language[4] = {0};
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char *str = NULL;
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const char *key = NULL;
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uint16_t langcode = 0;
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uint32_t data_type = 0, str_size, str_size_alloc;
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int (*parse)(MOVContext*, AVIOContext*, unsigned, const char*) = NULL;
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int raw = 0;
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switch (atom.type) {
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case MKTAG( '@','P','R','M'): key = "premiere_version"; raw = 1; break;
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case MKTAG( '@','P','R','Q'): key = "quicktime_version"; raw = 1; break;
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case MKTAG( 'X','M','P','_'):
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if (c->export_xmp) { key = "xmp"; raw = 1; } break;
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case MKTAG( 'a','A','R','T'): key = "album_artist"; break;
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case MKTAG( 'a','k','I','D'): key = "account_type";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 'a','p','I','D'): key = "account_id"; break;
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case MKTAG( 'c','a','t','g'): key = "category"; break;
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case MKTAG( 'c','p','i','l'): key = "compilation";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 'c','p','r','t'): key = "copyright"; break;
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case MKTAG( 'd','e','s','c'): key = "description"; break;
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case MKTAG( 'd','i','s','k'): key = "disc";
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parse = mov_metadata_track_or_disc_number; break;
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case MKTAG( 'e','g','i','d'): key = "episode_uid";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 'g','n','r','e'): key = "genre";
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parse = mov_metadata_gnre; break;
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case MKTAG( 'h','d','v','d'): key = "hd_video";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 'k','e','y','w'): key = "keywords"; break;
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case MKTAG( 'l','d','e','s'): key = "synopsis"; break;
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case MKTAG( 'l','o','c','i'):
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return mov_metadata_loci(c, pb, atom.size);
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case MKTAG( 'p','c','s','t'): key = "podcast";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 'p','g','a','p'): key = "gapless_playback";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 'p','u','r','d'): key = "purchase_date"; break;
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case MKTAG( 'r','t','n','g'): key = "rating";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 's','o','a','a'): key = "sort_album_artist"; break;
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case MKTAG( 's','o','a','l'): key = "sort_album"; break;
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case MKTAG( 's','o','a','r'): key = "sort_artist"; break;
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case MKTAG( 's','o','c','o'): key = "sort_composer"; break;
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case MKTAG( 's','o','n','m'): key = "sort_name"; break;
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case MKTAG( 's','o','s','n'): key = "sort_show"; break;
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case MKTAG( 's','t','i','k'): key = "media_type";
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parse = mov_metadata_int8_no_padding; break;
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case MKTAG( 't','r','k','n'): key = "track";
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parse = mov_metadata_track_or_disc_number; break;
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case MKTAG( 't','v','e','n'): key = "episode_id"; break;
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case MKTAG( 't','v','e','s'): key = "episode_sort";
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parse = mov_metadata_int8_bypass_padding; break;
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case MKTAG( 't','v','n','n'): key = "network"; break;
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case MKTAG( 't','v','s','h'): key = "show"; break;
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case MKTAG( 't','v','s','n'): key = "season_number";
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parse = mov_metadata_int8_bypass_padding; break;
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case MKTAG(0xa9,'A','R','T'): key = "artist"; break;
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case MKTAG(0xa9,'P','R','D'): key = "producer"; break;
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case MKTAG(0xa9,'a','l','b'): key = "album"; break;
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case MKTAG(0xa9,'a','u','t'): key = "artist"; break;
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case MKTAG(0xa9,'c','h','p'): key = "chapter"; break;
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case MKTAG(0xa9,'c','m','t'): key = "comment"; break;
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case MKTAG(0xa9,'c','o','m'): key = "composer"; break;
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case MKTAG(0xa9,'c','p','y'): key = "copyright"; break;
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case MKTAG(0xa9,'d','a','y'): key = "date"; break;
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case MKTAG(0xa9,'d','i','r'): key = "director"; break;
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case MKTAG(0xa9,'d','i','s'): key = "disclaimer"; break;
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case MKTAG(0xa9,'e','d','1'): key = "edit_date"; break;
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case MKTAG(0xa9,'e','n','c'): key = "encoder"; break;
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case MKTAG(0xa9,'f','m','t'): key = "original_format"; break;
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case MKTAG(0xa9,'g','e','n'): key = "genre"; break;
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case MKTAG(0xa9,'g','r','p'): key = "grouping"; break;
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case MKTAG(0xa9,'h','s','t'): key = "host_computer"; break;
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case MKTAG(0xa9,'i','n','f'): key = "comment"; break;
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case MKTAG(0xa9,'l','y','r'): key = "lyrics"; break;
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case MKTAG(0xa9,'m','a','k'): key = "make"; break;
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case MKTAG(0xa9,'m','o','d'): key = "model"; break;
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case MKTAG(0xa9,'n','a','m'): key = "title"; break;
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case MKTAG(0xa9,'o','p','e'): key = "original_artist"; break;
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case MKTAG(0xa9,'p','r','d'): key = "producer"; break;
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case MKTAG(0xa9,'p','r','f'): key = "performers"; break;
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case MKTAG(0xa9,'r','e','q'): key = "playback_requirements"; break;
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case MKTAG(0xa9,'s','r','c'): key = "original_source"; break;
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case MKTAG(0xa9,'s','t','3'): key = "subtitle"; break;
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case MKTAG(0xa9,'s','w','r'): key = "encoder"; break;
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case MKTAG(0xa9,'t','o','o'): key = "encoder"; break;
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case MKTAG(0xa9,'t','r','k'): key = "track"; break;
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case MKTAG(0xa9,'u','r','l'): key = "URL"; break;
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case MKTAG(0xa9,'w','r','n'): key = "warning"; break;
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case MKTAG(0xa9,'w','r','t'): key = "composer"; break;
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case MKTAG(0xa9,'x','y','z'): key = "location"; break;
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}
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if (c->itunes_metadata && atom.size > 8) {
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int data_size = avio_rb32(pb);
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int tag = avio_rl32(pb);
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if (tag == MKTAG('d','a','t','a')) {
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data_type = avio_rb32(pb); // type
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avio_rb32(pb); // unknown
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str_size = data_size - 16;
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atom.size -= 16;
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if (atom.type == MKTAG('c', 'o', 'v', 'r')) {
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int ret = mov_read_covr(c, pb, data_type, str_size);
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if (ret < 0) {
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av_log(c->fc, AV_LOG_ERROR, "Error parsing cover art.\n");
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}
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return ret;
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}
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} else return 0;
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} else if (atom.size > 4 && key && !c->itunes_metadata && !raw) {
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str_size = avio_rb16(pb); // string length
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langcode = avio_rb16(pb);
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ff_mov_lang_to_iso639(langcode, language);
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atom.size -= 4;
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} else
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str_size = atom.size;
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if (c->export_all && !key) {
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snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
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key = tmp_key;
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}
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if (!key)
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return 0;
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if (atom.size < 0 || str_size >= INT_MAX/2)
|
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return AVERROR_INVALIDDATA;
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|
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// worst-case requirement for output string in case of utf8 coded input
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str_size_alloc = (raw ? str_size : str_size * 2) + 1;
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str = av_mallocz(str_size_alloc);
|
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if (!str)
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return AVERROR(ENOMEM);
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|
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if (parse)
|
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parse(c, pb, str_size, key);
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else {
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if (!raw && (data_type == 3 || (data_type == 0 && (langcode < 0x400 || langcode == 0x7fff)))) { // MAC Encoded
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mov_read_mac_string(c, pb, str_size, str, str_size_alloc);
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} else {
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int ret = avio_read(pb, str, str_size);
|
|
if (ret != str_size) {
|
|
av_freep(&str);
|
|
return ret < 0 ? ret : AVERROR_INVALIDDATA;
|
|
}
|
|
str[str_size] = 0;
|
|
}
|
|
c->fc->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
|
|
av_dict_set(&c->fc->metadata, key, str, 0);
|
|
if (*language && strcmp(language, "und")) {
|
|
snprintf(key2, sizeof(key2), "%s-%s", key, language);
|
|
av_dict_set(&c->fc->metadata, key2, str, 0);
|
|
}
|
|
}
|
|
av_dlog(c->fc, "lang \"%3s\" ", language);
|
|
av_dlog(c->fc, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
|
|
key, str, (char*)&atom.type, str_size_alloc, atom.size);
|
|
|
|
av_freep(&str);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_chpl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int64_t start;
|
|
int i, nb_chapters, str_len, version;
|
|
char str[256+1];
|
|
|
|
if ((atom.size -= 5) < 0)
|
|
return 0;
|
|
|
|
version = avio_r8(pb);
|
|
avio_rb24(pb);
|
|
if (version)
|
|
avio_rb32(pb); // ???
|
|
nb_chapters = avio_r8(pb);
|
|
|
|
for (i = 0; i < nb_chapters; i++) {
|
|
if (atom.size < 9)
|
|
return 0;
|
|
|
|
start = avio_rb64(pb);
|
|
str_len = avio_r8(pb);
|
|
|
|
if ((atom.size -= 9+str_len) < 0)
|
|
return 0;
|
|
|
|
avio_read(pb, str, str_len);
|
|
str[str_len] = 0;
|
|
avpriv_new_chapter(c->fc, i, (AVRational){1,10000000}, start, AV_NOPTS_VALUE, str);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define MIN_DATA_ENTRY_BOX_SIZE 12
|
|
static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
int entries, i, j;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_rb32(pb); // version + flags
|
|
entries = avio_rb32(pb);
|
|
if (entries > (atom.size - 1) / MIN_DATA_ENTRY_BOX_SIZE + 1 ||
|
|
entries >= UINT_MAX / sizeof(*sc->drefs))
|
|
return AVERROR_INVALIDDATA;
|
|
av_free(sc->drefs);
|
|
sc->drefs_count = 0;
|
|
sc->drefs = av_mallocz(entries * sizeof(*sc->drefs));
|
|
if (!sc->drefs)
|
|
return AVERROR(ENOMEM);
|
|
sc->drefs_count = entries;
|
|
|
|
for (i = 0; i < sc->drefs_count; i++) {
|
|
MOVDref *dref = &sc->drefs[i];
|
|
uint32_t size = avio_rb32(pb);
|
|
int64_t next = avio_tell(pb) + size - 4;
|
|
|
|
if (size < 12)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
dref->type = avio_rl32(pb);
|
|
avio_rb32(pb); // version + flags
|
|
av_dlog(c->fc, "type %.4s size %d\n", (char*)&dref->type, size);
|
|
|
|
if (dref->type == MKTAG('a','l','i','s') && size > 150) {
|
|
/* macintosh alias record */
|
|
uint16_t volume_len, len;
|
|
int16_t type;
|
|
|
|
avio_skip(pb, 10);
|
|
|
|
volume_len = avio_r8(pb);
|
|
volume_len = FFMIN(volume_len, 27);
|
|
avio_read(pb, dref->volume, 27);
|
|
dref->volume[volume_len] = 0;
|
|
av_log(c->fc, AV_LOG_DEBUG, "volume %s, len %d\n", dref->volume, volume_len);
|
|
|
|
avio_skip(pb, 12);
|
|
|
|
len = avio_r8(pb);
|
|
len = FFMIN(len, 63);
|
|
avio_read(pb, dref->filename, 63);
|
|
dref->filename[len] = 0;
|
|
av_log(c->fc, AV_LOG_DEBUG, "filename %s, len %d\n", dref->filename, len);
|
|
|
|
avio_skip(pb, 16);
|
|
|
|
/* read next level up_from_alias/down_to_target */
|
|
dref->nlvl_from = avio_rb16(pb);
|
|
dref->nlvl_to = avio_rb16(pb);
|
|
av_log(c->fc, AV_LOG_DEBUG, "nlvl from %d, nlvl to %d\n",
|
|
dref->nlvl_from, dref->nlvl_to);
|
|
|
|
avio_skip(pb, 16);
|
|
|
|
for (type = 0; type != -1 && avio_tell(pb) < next; ) {
|
|
if(avio_feof(pb))
|
|
return AVERROR_EOF;
|
|
type = avio_rb16(pb);
|
|
len = avio_rb16(pb);
|
|
av_log(c->fc, AV_LOG_DEBUG, "type %d, len %d\n", type, len);
|
|
if (len&1)
|
|
len += 1;
|
|
if (type == 2) { // absolute path
|
|
av_free(dref->path);
|
|
dref->path = av_mallocz(len+1);
|
|
if (!dref->path)
|
|
return AVERROR(ENOMEM);
|
|
avio_read(pb, dref->path, len);
|
|
if (len > volume_len && !strncmp(dref->path, dref->volume, volume_len)) {
|
|
len -= volume_len;
|
|
memmove(dref->path, dref->path+volume_len, len);
|
|
dref->path[len] = 0;
|
|
}
|
|
for (j = 0; j < len; j++)
|
|
if (dref->path[j] == ':')
|
|
dref->path[j] = '/';
|
|
av_log(c->fc, AV_LOG_DEBUG, "path %s\n", dref->path);
|
|
} else if (type == 0) { // directory name
|
|
av_free(dref->dir);
|
|
dref->dir = av_malloc(len+1);
|
|
if (!dref->dir)
|
|
return AVERROR(ENOMEM);
|
|
if (avio_read(pb, dref->dir, len) != len)
|
|
return AVERROR_INVALIDDATA;
|
|
dref->dir[len] = 0;
|
|
for (j = 0; j < len; j++)
|
|
if (dref->dir[j] == ':')
|
|
dref->dir[j] = '/';
|
|
av_log(c->fc, AV_LOG_DEBUG, "dir %s\n", dref->dir);
|
|
} else
|
|
avio_skip(pb, len);
|
|
}
|
|
}
|
|
avio_seek(pb, next, SEEK_SET);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
uint32_t type;
|
|
uint32_t av_unused ctype;
|
|
int title_size;
|
|
char *title_str;
|
|
|
|
if (c->fc->nb_streams < 1) // meta before first trak
|
|
return 0;
|
|
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
|
|
/* component type */
|
|
ctype = avio_rl32(pb);
|
|
type = avio_rl32(pb); /* component subtype */
|
|
|
|
av_dlog(c->fc, "ctype= %.4s (0x%08x)\n", (char*)&ctype, ctype);
|
|
av_dlog(c->fc, "stype= %.4s\n", (char*)&type);
|
|
|
|
if (type == MKTAG('v','i','d','e'))
|
|
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
|
else if (type == MKTAG('s','o','u','n'))
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
else if (type == MKTAG('m','1','a',' '))
|
|
st->codec->codec_id = AV_CODEC_ID_MP2;
|
|
else if ((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
|
|
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
|
|
|
|
avio_rb32(pb); /* component manufacture */
|
|
avio_rb32(pb); /* component flags */
|
|
avio_rb32(pb); /* component flags mask */
|
|
|
|
title_size = atom.size - 24;
|
|
if (title_size > 0) {
|
|
title_str = av_malloc(title_size + 1); /* Add null terminator */
|
|
if (!title_str)
|
|
return AVERROR(ENOMEM);
|
|
avio_read(pb, title_str, title_size);
|
|
title_str[title_size] = 0;
|
|
if (title_str[0])
|
|
av_dict_set(&st->metadata, "handler_name", title_str +
|
|
(!c->isom && title_str[0] == title_size - 1), 0);
|
|
av_freep(&title_str);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb)
|
|
{
|
|
AVStream *st;
|
|
int tag;
|
|
|
|
if (fc->nb_streams < 1)
|
|
return 0;
|
|
st = fc->streams[fc->nb_streams-1];
|
|
|
|
avio_rb32(pb); /* version + flags */
|
|
ff_mp4_read_descr(fc, pb, &tag);
|
|
if (tag == MP4ESDescrTag) {
|
|
ff_mp4_parse_es_descr(pb, NULL);
|
|
} else
|
|
avio_rb16(pb); /* ID */
|
|
|
|
ff_mp4_read_descr(fc, pb, &tag);
|
|
if (tag == MP4DecConfigDescrTag)
|
|
ff_mp4_read_dec_config_descr(fc, st, pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
return ff_mov_read_esds(c->fc, pb);
|
|
}
|
|
|
|
static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
int ac3info, acmod, lfeon, bsmod;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
ac3info = avio_rb24(pb);
|
|
bsmod = (ac3info >> 14) & 0x7;
|
|
acmod = (ac3info >> 11) & 0x7;
|
|
lfeon = (ac3info >> 10) & 0x1;
|
|
st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
|
|
st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
|
|
if (lfeon)
|
|
st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
|
|
st->codec->audio_service_type = bsmod;
|
|
if (st->codec->channels > 1 && bsmod == 0x7)
|
|
st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
int eac3info, acmod, lfeon, bsmod;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
/* No need to parse fields for additional independent substreams and its
|
|
* associated dependent substreams since libavcodec's E-AC-3 decoder
|
|
* does not support them yet. */
|
|
avio_rb16(pb); /* data_rate and num_ind_sub */
|
|
eac3info = avio_rb24(pb);
|
|
bsmod = (eac3info >> 12) & 0x1f;
|
|
acmod = (eac3info >> 9) & 0x7;
|
|
lfeon = (eac3info >> 8) & 0x1;
|
|
st->codec->channel_layout = avpriv_ac3_channel_layout_tab[acmod];
|
|
if (lfeon)
|
|
st->codec->channel_layout |= AV_CH_LOW_FREQUENCY;
|
|
st->codec->channels = av_get_channel_layout_nb_channels(st->codec->channel_layout);
|
|
st->codec->audio_service_type = bsmod;
|
|
if (st->codec->channels > 1 && bsmod == 0x7)
|
|
st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_chan(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if (atom.size < 16)
|
|
return 0;
|
|
|
|
/* skip version and flags */
|
|
avio_skip(pb, 4);
|
|
|
|
ff_mov_read_chan(c->fc, pb, st, atom.size - 4);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_wfex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
int ret;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if ((ret = ff_get_wav_header(pb, st->codec, atom.size, 0)) < 0)
|
|
av_log(c->fc, AV_LOG_WARNING, "get_wav_header failed\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mov_read_pasp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
const int num = avio_rb32(pb);
|
|
const int den = avio_rb32(pb);
|
|
AVStream *st;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if ((st->sample_aspect_ratio.den != 1 || st->sample_aspect_ratio.num) && // default
|
|
(den != st->sample_aspect_ratio.den || num != st->sample_aspect_ratio.num)) {
|
|
av_log(c->fc, AV_LOG_WARNING,
|
|
"sample aspect ratio already set to %d:%d, ignoring 'pasp' atom (%d:%d)\n",
|
|
st->sample_aspect_ratio.num, st->sample_aspect_ratio.den,
|
|
num, den);
|
|
} else if (den != 0) {
|
|
st->sample_aspect_ratio.num = num;
|
|
st->sample_aspect_ratio.den = den;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* this atom contains actual media data */
|
|
static int mov_read_mdat(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
if (atom.size == 0) /* wrong one (MP4) */
|
|
return 0;
|
|
c->found_mdat=1;
|
|
return 0; /* now go for moov */
|
|
}
|
|
|
|
/* read major brand, minor version and compatible brands and store them as metadata */
|
|
static int mov_read_ftyp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
uint32_t minor_ver;
|
|
int comp_brand_size;
|
|
char* comp_brands_str;
|
|
uint8_t type[5] = {0};
|
|
|
|
avio_read(pb, type, 4);
|
|
if (strcmp(type, "qt "))
|
|
c->isom = 1;
|
|
av_log(c->fc, AV_LOG_DEBUG, "ISO: File Type Major Brand: %.4s\n",(char *)&type);
|
|
av_dict_set(&c->fc->metadata, "major_brand", type, 0);
|
|
minor_ver = avio_rb32(pb); /* minor version */
|
|
av_dict_set_int(&c->fc->metadata, "minor_version", minor_ver, 0);
|
|
|
|
comp_brand_size = atom.size - 8;
|
|
if (comp_brand_size < 0)
|
|
return AVERROR_INVALIDDATA;
|
|
comp_brands_str = av_malloc(comp_brand_size + 1); /* Add null terminator */
|
|
if (!comp_brands_str)
|
|
return AVERROR(ENOMEM);
|
|
avio_read(pb, comp_brands_str, comp_brand_size);
|
|
comp_brands_str[comp_brand_size] = 0;
|
|
av_dict_set(&c->fc->metadata, "compatible_brands", comp_brands_str, 0);
|
|
av_freep(&comp_brands_str);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* this atom should contain all header atoms */
|
|
static int mov_read_moov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int ret;
|
|
|
|
if (c->found_moov) {
|
|
av_log(c->fc, AV_LOG_WARNING, "Found duplicated MOOV Atom. Skipped it\n");
|
|
avio_skip(pb, atom.size);
|
|
return 0;
|
|
}
|
|
|
|
if ((ret = mov_read_default(c, pb, atom)) < 0)
|
|
return ret;
|
|
/* we parsed the 'moov' atom, we can terminate the parsing as soon as we find the 'mdat' */
|
|
/* so we don't parse the whole file if over a network */
|
|
c->found_moov=1;
|
|
return 0; /* now go for mdat */
|
|
}
|
|
|
|
static int mov_read_moof(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
if (!c->has_looked_for_mfra && c->use_mfra_for > 0) {
|
|
c->has_looked_for_mfra = 1;
|
|
if (pb->seekable) {
|
|
int ret;
|
|
av_log(c->fc, AV_LOG_VERBOSE, "stream has moof boxes, will look "
|
|
"for a mfra\n");
|
|
if ((ret = mov_read_mfra(c, pb)) < 0) {
|
|
av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but failed to "
|
|
"read the mfra (may be a live ismv)\n");
|
|
}
|
|
} else {
|
|
av_log(c->fc, AV_LOG_VERBOSE, "found a moof box but stream is not "
|
|
"seekable, can not look for mfra\n");
|
|
}
|
|
}
|
|
c->fragment.moof_offset = c->fragment.implicit_offset = avio_tell(pb) - 8;
|
|
av_dlog(c->fc, "moof offset %"PRIx64"\n", c->fragment.moof_offset);
|
|
return mov_read_default(c, pb, atom);
|
|
}
|
|
|
|
static void mov_metadata_creation_time(AVDictionary **metadata, int64_t time)
|
|
{
|
|
char buffer[32];
|
|
if (time) {
|
|
struct tm *ptm, tmbuf;
|
|
time_t timet;
|
|
if(time >= 2082844800)
|
|
time -= 2082844800; /* seconds between 1904-01-01 and Epoch */
|
|
timet = time;
|
|
ptm = gmtime_r(&timet, &tmbuf);
|
|
if (!ptm) return;
|
|
if (strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", ptm))
|
|
av_dict_set(metadata, "creation_time", buffer, 0);
|
|
}
|
|
}
|
|
|
|
static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
int version;
|
|
char language[4] = {0};
|
|
unsigned lang;
|
|
int64_t creation_time;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
if (sc->time_scale) {
|
|
av_log(c->fc, AV_LOG_ERROR, "Multiple mdhd?\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
version = avio_r8(pb);
|
|
if (version > 1) {
|
|
avpriv_request_sample(c->fc, "Version %d", version);
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
avio_rb24(pb); /* flags */
|
|
if (version == 1) {
|
|
creation_time = avio_rb64(pb);
|
|
avio_rb64(pb);
|
|
} else {
|
|
creation_time = avio_rb32(pb);
|
|
avio_rb32(pb); /* modification time */
|
|
}
|
|
mov_metadata_creation_time(&st->metadata, creation_time);
|
|
|
|
sc->time_scale = avio_rb32(pb);
|
|
st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
|
|
|
|
lang = avio_rb16(pb); /* language */
|
|
if (ff_mov_lang_to_iso639(lang, language))
|
|
av_dict_set(&st->metadata, "language", language, 0);
|
|
avio_rb16(pb); /* quality */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int64_t creation_time;
|
|
int version = avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
|
|
if (version == 1) {
|
|
creation_time = avio_rb64(pb);
|
|
avio_rb64(pb);
|
|
} else {
|
|
creation_time = avio_rb32(pb);
|
|
avio_rb32(pb); /* modification time */
|
|
}
|
|
mov_metadata_creation_time(&c->fc->metadata, creation_time);
|
|
c->time_scale = avio_rb32(pb); /* time scale */
|
|
|
|
av_dlog(c->fc, "time scale = %i\n", c->time_scale);
|
|
|
|
c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
|
|
// set the AVCodecContext duration because the duration of individual tracks
|
|
// may be inaccurate
|
|
if (c->time_scale > 0 && !c->trex_data)
|
|
c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
|
|
avio_rb32(pb); /* preferred scale */
|
|
|
|
avio_rb16(pb); /* preferred volume */
|
|
|
|
avio_skip(pb, 10); /* reserved */
|
|
|
|
avio_skip(pb, 36); /* display matrix */
|
|
|
|
avio_rb32(pb); /* preview time */
|
|
avio_rb32(pb); /* preview duration */
|
|
avio_rb32(pb); /* poster time */
|
|
avio_rb32(pb); /* selection time */
|
|
avio_rb32(pb); /* selection duration */
|
|
avio_rb32(pb); /* current time */
|
|
avio_rb32(pb); /* next track ID */
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_enda(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
int little_endian;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
little_endian = avio_rb16(pb) & 0xFF;
|
|
av_dlog(c->fc, "enda %d\n", little_endian);
|
|
if (little_endian == 1) {
|
|
switch (st->codec->codec_id) {
|
|
case AV_CODEC_ID_PCM_S24BE:
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_S24LE;
|
|
break;
|
|
case AV_CODEC_ID_PCM_S32BE:
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_S32LE;
|
|
break;
|
|
case AV_CODEC_ID_PCM_F32BE:
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_F32LE;
|
|
break;
|
|
case AV_CODEC_ID_PCM_F64BE:
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_F64LE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_colr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
char color_parameter_type[5] = { 0 };
|
|
int color_primaries, color_trc, color_matrix;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams - 1];
|
|
|
|
avio_read(pb, color_parameter_type, 4);
|
|
if (strncmp(color_parameter_type, "nclx", 4) &&
|
|
strncmp(color_parameter_type, "nclc", 4)) {
|
|
av_log(c->fc, AV_LOG_WARNING, "unsupported color_parameter_type %s\n",
|
|
color_parameter_type);
|
|
return 0;
|
|
}
|
|
|
|
color_primaries = avio_rb16(pb);
|
|
color_trc = avio_rb16(pb);
|
|
color_matrix = avio_rb16(pb);
|
|
|
|
av_dlog(c->fc, "%s: pri %d trc %d matrix %d",
|
|
color_parameter_type, color_primaries, color_trc, color_matrix);
|
|
|
|
if (c->isom) {
|
|
uint8_t color_range = avio_r8(pb) >> 7;
|
|
av_dlog(c->fc, " full %"PRIu8"", color_range);
|
|
if (color_range)
|
|
st->codec->color_range = AVCOL_RANGE_JPEG;
|
|
else
|
|
st->codec->color_range = AVCOL_RANGE_MPEG;
|
|
/* 14496-12 references JPEG XR specs (rather than the more complete
|
|
* 23001-8) so some adjusting is required */
|
|
if (color_primaries >= AVCOL_PRI_FILM)
|
|
color_primaries = AVCOL_PRI_UNSPECIFIED;
|
|
if ((color_trc >= AVCOL_TRC_LINEAR &&
|
|
color_trc <= AVCOL_TRC_LOG_SQRT) ||
|
|
color_trc >= AVCOL_TRC_BT2020_10)
|
|
color_trc = AVCOL_TRC_UNSPECIFIED;
|
|
if (color_matrix >= AVCOL_SPC_BT2020_NCL)
|
|
color_matrix = AVCOL_SPC_UNSPECIFIED;
|
|
st->codec->color_primaries = color_primaries;
|
|
st->codec->color_trc = color_trc;
|
|
st->codec->colorspace = color_matrix;
|
|
} else {
|
|
/* color primaries, Table 4-4 */
|
|
switch (color_primaries) {
|
|
case 1: st->codec->color_primaries = AVCOL_PRI_BT709; break;
|
|
case 5: st->codec->color_primaries = AVCOL_PRI_SMPTE170M; break;
|
|
case 6: st->codec->color_primaries = AVCOL_PRI_SMPTE240M; break;
|
|
}
|
|
/* color transfer, Table 4-5 */
|
|
switch (color_trc) {
|
|
case 1: st->codec->color_trc = AVCOL_TRC_BT709; break;
|
|
case 7: st->codec->color_trc = AVCOL_TRC_SMPTE240M; break;
|
|
}
|
|
/* color matrix, Table 4-6 */
|
|
switch (color_matrix) {
|
|
case 1: st->codec->colorspace = AVCOL_SPC_BT709; break;
|
|
case 6: st->codec->colorspace = AVCOL_SPC_BT470BG; break;
|
|
case 7: st->codec->colorspace = AVCOL_SPC_SMPTE240M; break;
|
|
}
|
|
}
|
|
av_dlog(c->fc, "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_fiel(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
unsigned mov_field_order;
|
|
enum AVFieldOrder decoded_field_order = AV_FIELD_UNKNOWN;
|
|
|
|
if (c->fc->nb_streams < 1) // will happen with jp2 files
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
if (atom.size < 2)
|
|
return AVERROR_INVALIDDATA;
|
|
mov_field_order = avio_rb16(pb);
|
|
if ((mov_field_order & 0xFF00) == 0x0100)
|
|
decoded_field_order = AV_FIELD_PROGRESSIVE;
|
|
else if ((mov_field_order & 0xFF00) == 0x0200) {
|
|
switch (mov_field_order & 0xFF) {
|
|
case 0x01: decoded_field_order = AV_FIELD_TT;
|
|
break;
|
|
case 0x06: decoded_field_order = AV_FIELD_BB;
|
|
break;
|
|
case 0x09: decoded_field_order = AV_FIELD_TB;
|
|
break;
|
|
case 0x0E: decoded_field_order = AV_FIELD_BT;
|
|
break;
|
|
}
|
|
}
|
|
if (decoded_field_order == AV_FIELD_UNKNOWN && mov_field_order) {
|
|
av_log(NULL, AV_LOG_ERROR, "Unknown MOV field order 0x%04x\n", mov_field_order);
|
|
}
|
|
st->codec->field_order = decoded_field_order;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* FIXME modify qdm2/svq3/h264 decoders to take full atom as extradata */
|
|
static int mov_read_extradata(MOVContext *c, AVIOContext *pb, MOVAtom atom,
|
|
enum AVCodecID codec_id)
|
|
{
|
|
AVStream *st;
|
|
uint64_t size;
|
|
uint8_t *buf;
|
|
int err;
|
|
|
|
if (c->fc->nb_streams < 1) // will happen with jp2 files
|
|
return 0;
|
|
st= c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if (st->codec->codec_id != codec_id)
|
|
return 0; /* unexpected codec_id - don't mess with extradata */
|
|
|
|
size= (uint64_t)st->codec->extradata_size + atom.size + 8 + FF_INPUT_BUFFER_PADDING_SIZE;
|
|
if (size > INT_MAX || (uint64_t)atom.size > INT_MAX)
|
|
return AVERROR_INVALIDDATA;
|
|
if ((err = av_reallocp(&st->codec->extradata, size)) < 0) {
|
|
st->codec->extradata_size = 0;
|
|
return err;
|
|
}
|
|
buf = st->codec->extradata + st->codec->extradata_size;
|
|
st->codec->extradata_size= size - FF_INPUT_BUFFER_PADDING_SIZE;
|
|
AV_WB32( buf , atom.size + 8);
|
|
AV_WL32( buf + 4, atom.type);
|
|
err = avio_read(pb, buf + 8, atom.size);
|
|
if (err < 0) {
|
|
return err;
|
|
} else if (err < atom.size) {
|
|
av_log(c->fc, AV_LOG_WARNING, "truncated extradata\n");
|
|
st->codec->extradata_size -= atom.size - err;
|
|
}
|
|
memset(buf + 8 + err, 0, FF_INPUT_BUFFER_PADDING_SIZE);
|
|
return 0;
|
|
}
|
|
|
|
/* wrapper functions for reading ALAC/AVS/MJPEG/MJPEG2000 extradata atoms only for those codecs */
|
|
static int mov_read_alac(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
return mov_read_extradata(c, pb, atom, AV_CODEC_ID_ALAC);
|
|
}
|
|
|
|
static int mov_read_avss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
return mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVS);
|
|
}
|
|
|
|
static int mov_read_jp2h(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
return mov_read_extradata(c, pb, atom, AV_CODEC_ID_JPEG2000);
|
|
}
|
|
|
|
static int mov_read_dpxe(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
return mov_read_extradata(c, pb, atom, AV_CODEC_ID_R10K);
|
|
}
|
|
|
|
static int mov_read_avid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_AVUI);
|
|
if(ret == 0)
|
|
ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_DNXHD);
|
|
return ret;
|
|
}
|
|
|
|
static int mov_read_targa_y216(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int ret = mov_read_extradata(c, pb, atom, AV_CODEC_ID_TARGA_Y216);
|
|
|
|
if (!ret && c->fc->nb_streams >= 1) {
|
|
AVCodecContext *avctx = c->fc->streams[c->fc->nb_streams-1]->codec;
|
|
if (avctx->extradata_size >= 40) {
|
|
avctx->height = AV_RB16(&avctx->extradata[36]);
|
|
avctx->width = AV_RB16(&avctx->extradata[38]);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int mov_read_ares(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
if (c->fc->nb_streams >= 1) {
|
|
AVCodecContext *codec = c->fc->streams[c->fc->nb_streams-1]->codec;
|
|
if (codec->codec_tag == MKTAG('A', 'V', 'i', 'n') &&
|
|
codec->codec_id == AV_CODEC_ID_H264 &&
|
|
atom.size > 11) {
|
|
avio_skip(pb, 10);
|
|
/* For AVID AVCI50, force width of 1440 to be able to select the correct SPS and PPS */
|
|
if (avio_rb16(pb) == 0xd4d)
|
|
codec->width = 1440;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return mov_read_avid(c, pb, atom);
|
|
}
|
|
|
|
static int mov_read_svq3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
return mov_read_extradata(c, pb, atom, AV_CODEC_ID_SVQ3);
|
|
}
|
|
|
|
static int mov_read_wave(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if ((uint64_t)atom.size > (1<<30))
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (st->codec->codec_id == AV_CODEC_ID_QDM2 ||
|
|
st->codec->codec_id == AV_CODEC_ID_QDMC ||
|
|
st->codec->codec_id == AV_CODEC_ID_SPEEX) {
|
|
// pass all frma atom to codec, needed at least for QDMC and QDM2
|
|
av_freep(&st->codec->extradata);
|
|
if (ff_get_extradata(st->codec, pb, atom.size) < 0)
|
|
return AVERROR(ENOMEM);
|
|
} else if (atom.size > 8) { /* to read frma, esds atoms */
|
|
int ret;
|
|
if ((ret = mov_read_default(c, pb, atom)) < 0)
|
|
return ret;
|
|
} else
|
|
avio_skip(pb, atom.size);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* This function reads atom content and puts data in extradata without tag
|
|
* nor size unlike mov_read_extradata.
|
|
*/
|
|
static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if ((uint64_t)atom.size > (1<<30))
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
if (atom.size >= 10) {
|
|
// Broken files created by legacy versions of libavformat will
|
|
// wrap a whole fiel atom inside of a glbl atom.
|
|
unsigned size = avio_rb32(pb);
|
|
unsigned type = avio_rl32(pb);
|
|
avio_seek(pb, -8, SEEK_CUR);
|
|
if (type == MKTAG('f','i','e','l') && size == atom.size)
|
|
return mov_read_default(c, pb, atom);
|
|
}
|
|
if (st->codec->extradata_size > 1 && st->codec->extradata) {
|
|
av_log(c, AV_LOG_WARNING, "ignoring multiple glbl\n");
|
|
return 0;
|
|
}
|
|
av_freep(&st->codec->extradata);
|
|
if (ff_get_extradata(st->codec, pb, atom.size) < 0)
|
|
return AVERROR(ENOMEM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_dvc1(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
uint8_t profile_level;
|
|
int ret;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if (atom.size >= (1<<28) || atom.size < 7)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
profile_level = avio_r8(pb);
|
|
if ((profile_level & 0xf0) != 0xc0)
|
|
return 0;
|
|
|
|
avio_seek(pb, 6, SEEK_CUR);
|
|
av_freep(&st->codec->extradata);
|
|
if ((ret = ff_get_extradata(st->codec, pb, atom.size - 7)) < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* An strf atom is a BITMAPINFOHEADER struct. This struct is 40 bytes itself,
|
|
* but can have extradata appended at the end after the 40 bytes belonging
|
|
* to the struct.
|
|
*/
|
|
static int mov_read_strf(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
if (atom.size <= 40)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
|
|
if ((uint64_t)atom.size > (1<<30))
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
avio_skip(pb, 40);
|
|
av_freep(&st->codec->extradata);
|
|
if (ff_get_extradata(st->codec, pb, atom.size - 40) < 0)
|
|
return AVERROR(ENOMEM);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_stco(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
|
|
entries = avio_rb32(pb);
|
|
|
|
if (!entries)
|
|
return 0;
|
|
|
|
if (sc->chunk_offsets)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated STCO atom\n");
|
|
av_free(sc->chunk_offsets);
|
|
sc->chunk_count = 0;
|
|
sc->chunk_offsets = av_malloc_array(entries, sizeof(*sc->chunk_offsets));
|
|
if (!sc->chunk_offsets)
|
|
return AVERROR(ENOMEM);
|
|
sc->chunk_count = entries;
|
|
|
|
if (atom.type == MKTAG('s','t','c','o'))
|
|
for (i = 0; i < entries && !pb->eof_reached; i++)
|
|
sc->chunk_offsets[i] = avio_rb32(pb);
|
|
else if (atom.type == MKTAG('c','o','6','4'))
|
|
for (i = 0; i < entries && !pb->eof_reached; i++)
|
|
sc->chunk_offsets[i] = avio_rb64(pb);
|
|
else
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
sc->chunk_count = i;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Compute codec id for 'lpcm' tag.
|
|
* See CoreAudioTypes and AudioStreamBasicDescription at Apple.
|
|
*/
|
|
enum AVCodecID ff_mov_get_lpcm_codec_id(int bps, int flags)
|
|
{
|
|
/* lpcm flags:
|
|
* 0x1 = float
|
|
* 0x2 = big-endian
|
|
* 0x4 = signed
|
|
*/
|
|
return ff_get_pcm_codec_id(bps, flags & 1, flags & 2, flags & 4 ? -1 : 0);
|
|
}
|
|
|
|
static int mov_codec_id(AVStream *st, uint32_t format)
|
|
{
|
|
int id = ff_codec_get_id(ff_codec_movaudio_tags, format);
|
|
|
|
if (id <= 0 &&
|
|
((format & 0xFFFF) == 'm' + ('s' << 8) ||
|
|
(format & 0xFFFF) == 'T' + ('S' << 8)))
|
|
id = ff_codec_get_id(ff_codec_wav_tags, av_bswap32(format) & 0xFFFF);
|
|
|
|
if (st->codec->codec_type != AVMEDIA_TYPE_VIDEO && id > 0) {
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
} else if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO &&
|
|
/* skip old asf mpeg4 tag */
|
|
format && format != MKTAG('m','p','4','s')) {
|
|
id = ff_codec_get_id(ff_codec_movvideo_tags, format);
|
|
if (id <= 0)
|
|
id = ff_codec_get_id(ff_codec_bmp_tags, format);
|
|
if (id > 0)
|
|
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
|
else if (st->codec->codec_type == AVMEDIA_TYPE_DATA ||
|
|
(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE &&
|
|
st->codec->codec_id == AV_CODEC_ID_NONE)) {
|
|
id = ff_codec_get_id(ff_codec_movsubtitle_tags, format);
|
|
if (id > 0)
|
|
st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
|
|
}
|
|
}
|
|
|
|
st->codec->codec_tag = format;
|
|
|
|
return id;
|
|
}
|
|
|
|
static void mov_parse_stsd_video(MOVContext *c, AVIOContext *pb,
|
|
AVStream *st, MOVStreamContext *sc)
|
|
{
|
|
uint8_t codec_name[32];
|
|
unsigned int color_depth, len, j;
|
|
int color_greyscale;
|
|
int color_table_id;
|
|
|
|
avio_rb16(pb); /* version */
|
|
avio_rb16(pb); /* revision level */
|
|
avio_rb32(pb); /* vendor */
|
|
avio_rb32(pb); /* temporal quality */
|
|
avio_rb32(pb); /* spatial quality */
|
|
|
|
st->codec->width = avio_rb16(pb); /* width */
|
|
st->codec->height = avio_rb16(pb); /* height */
|
|
|
|
avio_rb32(pb); /* horiz resolution */
|
|
avio_rb32(pb); /* vert resolution */
|
|
avio_rb32(pb); /* data size, always 0 */
|
|
avio_rb16(pb); /* frames per samples */
|
|
|
|
len = avio_r8(pb); /* codec name, pascal string */
|
|
if (len > 31)
|
|
len = 31;
|
|
mov_read_mac_string(c, pb, len, codec_name, sizeof(codec_name));
|
|
if (len < 31)
|
|
avio_skip(pb, 31 - len);
|
|
|
|
if (codec_name[0])
|
|
av_dict_set(&st->metadata, "encoder", codec_name, 0);
|
|
|
|
/* codec_tag YV12 triggers an UV swap in rawdec.c */
|
|
if (!memcmp(codec_name, "Planar Y'CbCr 8-bit 4:2:0", 25)) {
|
|
st->codec->codec_tag = MKTAG('I', '4', '2', '0');
|
|
st->codec->width &= ~1;
|
|
st->codec->height &= ~1;
|
|
}
|
|
/* Flash Media Server uses tag H263 with Sorenson Spark */
|
|
if (st->codec->codec_tag == MKTAG('H','2','6','3') &&
|
|
!memcmp(codec_name, "Sorenson H263", 13))
|
|
st->codec->codec_id = AV_CODEC_ID_FLV1;
|
|
|
|
st->codec->bits_per_coded_sample = avio_rb16(pb); /* depth */
|
|
color_table_id = avio_rb16(pb); /* colortable id */
|
|
av_dlog(c->fc, "depth %d, ctab id %d\n",
|
|
st->codec->bits_per_coded_sample, color_table_id);
|
|
/* figure out the palette situation */
|
|
color_depth = st->codec->bits_per_coded_sample & 0x1F;
|
|
color_greyscale = st->codec->bits_per_coded_sample & 0x20;
|
|
/* Do not create a greyscale palette for cinepak */
|
|
if (color_greyscale && st->codec->codec_id == AV_CODEC_ID_CINEPAK)
|
|
return;
|
|
|
|
/* if the depth is 2, 4, or 8 bpp, file is palettized */
|
|
if ((color_depth == 2) || (color_depth == 4) || (color_depth == 8)) {
|
|
/* for palette traversal */
|
|
unsigned int color_start, color_count, color_end;
|
|
unsigned char a, r, g, b;
|
|
|
|
if (color_greyscale) {
|
|
int color_index, color_dec;
|
|
/* compute the greyscale palette */
|
|
st->codec->bits_per_coded_sample = color_depth;
|
|
color_count = 1 << color_depth;
|
|
color_index = 255;
|
|
color_dec = 256 / (color_count - 1);
|
|
for (j = 0; j < color_count; j++) {
|
|
r = g = b = color_index;
|
|
sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
|
|
color_index -= color_dec;
|
|
if (color_index < 0)
|
|
color_index = 0;
|
|
}
|
|
} else if (color_table_id) {
|
|
const uint8_t *color_table;
|
|
/* if flag bit 3 is set, use the default palette */
|
|
color_count = 1 << color_depth;
|
|
if (color_depth == 2)
|
|
color_table = ff_qt_default_palette_4;
|
|
else if (color_depth == 4)
|
|
color_table = ff_qt_default_palette_16;
|
|
else
|
|
color_table = ff_qt_default_palette_256;
|
|
|
|
for (j = 0; j < color_count; j++) {
|
|
r = color_table[j * 3 + 0];
|
|
g = color_table[j * 3 + 1];
|
|
b = color_table[j * 3 + 2];
|
|
sc->palette[j] = (0xFFU << 24) | (r << 16) | (g << 8) | (b);
|
|
}
|
|
} else {
|
|
/* load the palette from the file */
|
|
color_start = avio_rb32(pb);
|
|
color_count = avio_rb16(pb);
|
|
color_end = avio_rb16(pb);
|
|
if ((color_start <= 255) && (color_end <= 255)) {
|
|
for (j = color_start; j <= color_end; j++) {
|
|
/* each A, R, G, or B component is 16 bits;
|
|
* only use the top 8 bits */
|
|
a = avio_r8(pb);
|
|
avio_r8(pb);
|
|
r = avio_r8(pb);
|
|
avio_r8(pb);
|
|
g = avio_r8(pb);
|
|
avio_r8(pb);
|
|
b = avio_r8(pb);
|
|
avio_r8(pb);
|
|
sc->palette[j] = (a << 24 ) | (r << 16) | (g << 8) | (b);
|
|
}
|
|
}
|
|
}
|
|
sc->has_palette = 1;
|
|
}
|
|
}
|
|
|
|
static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
|
|
AVStream *st, MOVStreamContext *sc)
|
|
{
|
|
int bits_per_sample, flags;
|
|
uint16_t version = avio_rb16(pb);
|
|
AVDictionaryEntry *compatible_brands = av_dict_get(c->fc->metadata, "compatible_brands", NULL, AV_DICT_MATCH_CASE);
|
|
|
|
avio_rb16(pb); /* revision level */
|
|
avio_rb32(pb); /* vendor */
|
|
|
|
st->codec->channels = avio_rb16(pb); /* channel count */
|
|
st->codec->bits_per_coded_sample = avio_rb16(pb); /* sample size */
|
|
av_dlog(c->fc, "audio channels %d\n", st->codec->channels);
|
|
|
|
sc->audio_cid = avio_rb16(pb);
|
|
avio_rb16(pb); /* packet size = 0 */
|
|
|
|
st->codec->sample_rate = ((avio_rb32(pb) >> 16));
|
|
|
|
// Read QT version 1 fields. In version 0 these do not exist.
|
|
av_dlog(c->fc, "version =%d, isom =%d\n", version, c->isom);
|
|
if (!c->isom ||
|
|
(compatible_brands && strstr(compatible_brands->value, "qt "))) {
|
|
|
|
if (version == 1) {
|
|
sc->samples_per_frame = avio_rb32(pb);
|
|
avio_rb32(pb); /* bytes per packet */
|
|
sc->bytes_per_frame = avio_rb32(pb);
|
|
avio_rb32(pb); /* bytes per sample */
|
|
} else if (version == 2) {
|
|
avio_rb32(pb); /* sizeof struct only */
|
|
st->codec->sample_rate = av_int2double(avio_rb64(pb));
|
|
st->codec->channels = avio_rb32(pb);
|
|
avio_rb32(pb); /* always 0x7F000000 */
|
|
st->codec->bits_per_coded_sample = avio_rb32(pb);
|
|
|
|
flags = avio_rb32(pb); /* lpcm format specific flag */
|
|
sc->bytes_per_frame = avio_rb32(pb);
|
|
sc->samples_per_frame = avio_rb32(pb);
|
|
if (st->codec->codec_tag == MKTAG('l','p','c','m'))
|
|
st->codec->codec_id =
|
|
ff_mov_get_lpcm_codec_id(st->codec->bits_per_coded_sample,
|
|
flags);
|
|
}
|
|
}
|
|
|
|
switch (st->codec->codec_id) {
|
|
case AV_CODEC_ID_PCM_S8:
|
|
case AV_CODEC_ID_PCM_U8:
|
|
if (st->codec->bits_per_coded_sample == 16)
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_S16BE;
|
|
break;
|
|
case AV_CODEC_ID_PCM_S16LE:
|
|
case AV_CODEC_ID_PCM_S16BE:
|
|
if (st->codec->bits_per_coded_sample == 8)
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_S8;
|
|
else if (st->codec->bits_per_coded_sample == 24)
|
|
st->codec->codec_id =
|
|
st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
|
|
AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
|
|
else if (st->codec->bits_per_coded_sample == 32)
|
|
st->codec->codec_id =
|
|
st->codec->codec_id == AV_CODEC_ID_PCM_S16BE ?
|
|
AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
|
|
break;
|
|
/* set values for old format before stsd version 1 appeared */
|
|
case AV_CODEC_ID_MACE3:
|
|
sc->samples_per_frame = 6;
|
|
sc->bytes_per_frame = 2 * st->codec->channels;
|
|
break;
|
|
case AV_CODEC_ID_MACE6:
|
|
sc->samples_per_frame = 6;
|
|
sc->bytes_per_frame = 1 * st->codec->channels;
|
|
break;
|
|
case AV_CODEC_ID_ADPCM_IMA_QT:
|
|
sc->samples_per_frame = 64;
|
|
sc->bytes_per_frame = 34 * st->codec->channels;
|
|
break;
|
|
case AV_CODEC_ID_GSM:
|
|
sc->samples_per_frame = 160;
|
|
sc->bytes_per_frame = 33;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
|
|
if (bits_per_sample) {
|
|
st->codec->bits_per_coded_sample = bits_per_sample;
|
|
sc->sample_size = (bits_per_sample >> 3) * st->codec->channels;
|
|
}
|
|
}
|
|
|
|
static void mov_parse_stsd_subtitle(MOVContext *c, AVIOContext *pb,
|
|
AVStream *st, MOVStreamContext *sc,
|
|
int64_t size)
|
|
{
|
|
// ttxt stsd contains display flags, justification, background
|
|
// color, fonts, and default styles, so fake an atom to read it
|
|
MOVAtom fake_atom = { .size = size };
|
|
// mp4s contains a regular esds atom
|
|
if (st->codec->codec_tag != AV_RL32("mp4s"))
|
|
mov_read_glbl(c, pb, fake_atom);
|
|
st->codec->width = sc->width;
|
|
st->codec->height = sc->height;
|
|
}
|
|
|
|
static uint32_t yuv_to_rgba(uint32_t ycbcr)
|
|
{
|
|
uint8_t r, g, b;
|
|
int y, cb, cr;
|
|
|
|
y = (ycbcr >> 16) & 0xFF;
|
|
cr = (ycbcr >> 8) & 0xFF;
|
|
cb = ycbcr & 0xFF;
|
|
|
|
b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
|
|
g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
|
|
r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
|
|
|
|
return (r << 16) | (g << 8) | b;
|
|
}
|
|
|
|
static int mov_rewrite_dvd_sub_extradata(AVStream *st)
|
|
{
|
|
char buf[256] = {0};
|
|
uint8_t *src = st->codec->extradata;
|
|
int i;
|
|
|
|
if (st->codec->extradata_size != 64)
|
|
return 0;
|
|
|
|
if (st->codec->width > 0 && st->codec->height > 0)
|
|
snprintf(buf, sizeof(buf), "size: %dx%d\n",
|
|
st->codec->width, st->codec->height);
|
|
av_strlcat(buf, "palette: ", sizeof(buf));
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
uint32_t yuv = AV_RB32(src + i * 4);
|
|
uint32_t rgba = yuv_to_rgba(yuv);
|
|
|
|
av_strlcatf(buf, sizeof(buf), "%06"PRIx32"%s", rgba, i != 15 ? ", " : "");
|
|
}
|
|
|
|
if (av_strlcat(buf, "\n", sizeof(buf)) >= sizeof(buf))
|
|
return 0;
|
|
|
|
av_freep(&st->codec->extradata);
|
|
st->codec->extradata_size = 0;
|
|
st->codec->extradata = av_mallocz(strlen(buf) + FF_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!st->codec->extradata)
|
|
return AVERROR(ENOMEM);
|
|
st->codec->extradata_size = strlen(buf);
|
|
memcpy(st->codec->extradata, buf, st->codec->extradata_size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_parse_stsd_data(MOVContext *c, AVIOContext *pb,
|
|
AVStream *st, MOVStreamContext *sc,
|
|
int64_t size)
|
|
{
|
|
if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
|
|
if ((int)size != size || ff_get_extradata(st->codec, pb, size) < 0)
|
|
return AVERROR(ENOMEM);
|
|
if (size > 16) {
|
|
MOVStreamContext *tmcd_ctx = st->priv_data;
|
|
int val;
|
|
val = AV_RB32(st->codec->extradata + 4);
|
|
tmcd_ctx->tmcd_flags = val;
|
|
if (val & 1)
|
|
st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
|
|
st->codec->time_base.den = st->codec->extradata[16]; /* number of frame */
|
|
st->codec->time_base.num = 1;
|
|
/* adjust for per frame dur in counter mode */
|
|
if (tmcd_ctx->tmcd_flags & 0x0008) {
|
|
int timescale = AV_RB32(st->codec->extradata + 8);
|
|
int framedur = AV_RB32(st->codec->extradata + 12);
|
|
st->codec->time_base.den *= timescale;
|
|
st->codec->time_base.num *= framedur;
|
|
}
|
|
if (size > 30) {
|
|
uint32_t len = AV_RB32(st->codec->extradata + 18); /* name atom length */
|
|
uint32_t format = AV_RB32(st->codec->extradata + 22);
|
|
if (format == AV_RB32("name") && (int64_t)size >= (int64_t)len + 18) {
|
|
uint16_t str_size = AV_RB16(st->codec->extradata + 26); /* string length */
|
|
if (str_size > 0 && size >= (int)str_size + 26) {
|
|
char *reel_name = av_malloc(str_size + 1);
|
|
if (!reel_name)
|
|
return AVERROR(ENOMEM);
|
|
memcpy(reel_name, st->codec->extradata + 30, str_size);
|
|
reel_name[str_size] = 0; /* Add null terminator */
|
|
/* don't add reel_name if emtpy string */
|
|
if (*reel_name == 0) {
|
|
av_free(reel_name);
|
|
} else {
|
|
av_dict_set(&st->metadata, "reel_name", reel_name, AV_DICT_DONT_STRDUP_VAL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
/* other codec type, just skip (rtp, mp4s ...) */
|
|
avio_skip(pb, size);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_finalize_stsd_codec(MOVContext *c, AVIOContext *pb,
|
|
AVStream *st, MOVStreamContext *sc)
|
|
{
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
|
|
!st->codec->sample_rate && sc->time_scale > 1)
|
|
st->codec->sample_rate = sc->time_scale;
|
|
|
|
/* special codec parameters handling */
|
|
switch (st->codec->codec_id) {
|
|
#if CONFIG_DV_DEMUXER
|
|
case AV_CODEC_ID_DVAUDIO:
|
|
c->dv_fctx = avformat_alloc_context();
|
|
c->dv_demux = avpriv_dv_init_demux(c->dv_fctx);
|
|
if (!c->dv_demux) {
|
|
av_log(c->fc, AV_LOG_ERROR, "dv demux context init error\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
sc->dv_audio_container = 1;
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
|
|
break;
|
|
#endif
|
|
/* no ifdef since parameters are always those */
|
|
case AV_CODEC_ID_QCELP:
|
|
st->codec->channels = 1;
|
|
// force sample rate for qcelp when not stored in mov
|
|
if (st->codec->codec_tag != MKTAG('Q','c','l','p'))
|
|
st->codec->sample_rate = 8000;
|
|
// FIXME: Why is the following needed for some files?
|
|
sc->samples_per_frame = 160;
|
|
if (!sc->bytes_per_frame)
|
|
sc->bytes_per_frame = 35;
|
|
break;
|
|
case AV_CODEC_ID_AMR_NB:
|
|
st->codec->channels = 1;
|
|
/* force sample rate for amr, stsd in 3gp does not store sample rate */
|
|
st->codec->sample_rate = 8000;
|
|
break;
|
|
case AV_CODEC_ID_AMR_WB:
|
|
st->codec->channels = 1;
|
|
st->codec->sample_rate = 16000;
|
|
break;
|
|
case AV_CODEC_ID_MP2:
|
|
case AV_CODEC_ID_MP3:
|
|
/* force type after stsd for m1a hdlr */
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->need_parsing = AVSTREAM_PARSE_FULL;
|
|
break;
|
|
case AV_CODEC_ID_GSM:
|
|
case AV_CODEC_ID_ADPCM_MS:
|
|
case AV_CODEC_ID_ADPCM_IMA_WAV:
|
|
case AV_CODEC_ID_ILBC:
|
|
case AV_CODEC_ID_MACE3:
|
|
case AV_CODEC_ID_MACE6:
|
|
case AV_CODEC_ID_QDM2:
|
|
st->codec->block_align = sc->bytes_per_frame;
|
|
break;
|
|
case AV_CODEC_ID_ALAC:
|
|
if (st->codec->extradata_size == 36) {
|
|
st->codec->channels = AV_RB8 (st->codec->extradata + 21);
|
|
st->codec->sample_rate = AV_RB32(st->codec->extradata + 32);
|
|
}
|
|
break;
|
|
case AV_CODEC_ID_AC3:
|
|
case AV_CODEC_ID_EAC3:
|
|
case AV_CODEC_ID_MPEG1VIDEO:
|
|
case AV_CODEC_ID_VC1:
|
|
st->need_parsing = AVSTREAM_PARSE_FULL;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_skip_multiple_stsd(MOVContext *c, AVIOContext *pb,
|
|
int codec_tag, int format,
|
|
int64_t size)
|
|
{
|
|
int video_codec_id = ff_codec_get_id(ff_codec_movvideo_tags, format);
|
|
|
|
if (codec_tag &&
|
|
(codec_tag != format &&
|
|
(c->fc->video_codec_id ? video_codec_id != c->fc->video_codec_id
|
|
: codec_tag != MKTAG('j','p','e','g')))) {
|
|
/* Multiple fourcc, we skip JPEG. This is not correct, we should
|
|
* export it as a separate AVStream but this needs a few changes
|
|
* in the MOV demuxer, patch welcome. */
|
|
|
|
av_log(c->fc, AV_LOG_WARNING, "multiple fourcc not supported\n");
|
|
avio_skip(pb, size);
|
|
return 1;
|
|
}
|
|
if ( codec_tag == AV_RL32("avc1") ||
|
|
codec_tag == AV_RL32("hvc1") ||
|
|
codec_tag == AV_RL32("hev1")
|
|
)
|
|
av_log(c->fc, AV_LOG_WARNING, "Concatenated H.264 or H.265 might not play correctly.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
int pseudo_stream_id;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
for (pseudo_stream_id = 0;
|
|
pseudo_stream_id < entries && !pb->eof_reached;
|
|
pseudo_stream_id++) {
|
|
//Parsing Sample description table
|
|
enum AVCodecID id;
|
|
int ret, dref_id = 1;
|
|
MOVAtom a = { AV_RL32("stsd") };
|
|
int64_t start_pos = avio_tell(pb);
|
|
int64_t size = avio_rb32(pb); /* size */
|
|
uint32_t format = avio_rl32(pb); /* data format */
|
|
|
|
if (size >= 16) {
|
|
avio_rb32(pb); /* reserved */
|
|
avio_rb16(pb); /* reserved */
|
|
dref_id = avio_rb16(pb);
|
|
}else if (size <= 7){
|
|
av_log(c->fc, AV_LOG_ERROR, "invalid size %"PRId64" in stsd\n", size);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (mov_skip_multiple_stsd(c, pb, st->codec->codec_tag, format,
|
|
size - (avio_tell(pb) - start_pos)))
|
|
continue;
|
|
|
|
sc->pseudo_stream_id = st->codec->codec_tag ? -1 : pseudo_stream_id;
|
|
sc->dref_id= dref_id;
|
|
|
|
id = mov_codec_id(st, format);
|
|
|
|
av_dlog(c->fc, "size=%"PRId64" 4CC= %c%c%c%c codec_type=%d\n", size,
|
|
(format >> 0) & 0xff, (format >> 8) & 0xff, (format >> 16) & 0xff,
|
|
(format >> 24) & 0xff, st->codec->codec_type);
|
|
|
|
if (st->codec->codec_type==AVMEDIA_TYPE_VIDEO) {
|
|
st->codec->codec_id = id;
|
|
mov_parse_stsd_video(c, pb, st, sc);
|
|
} else if (st->codec->codec_type==AVMEDIA_TYPE_AUDIO) {
|
|
st->codec->codec_id = id;
|
|
mov_parse_stsd_audio(c, pb, st, sc);
|
|
} else if (st->codec->codec_type==AVMEDIA_TYPE_SUBTITLE){
|
|
st->codec->codec_id = id;
|
|
mov_parse_stsd_subtitle(c, pb, st, sc,
|
|
size - (avio_tell(pb) - start_pos));
|
|
} else {
|
|
ret = mov_parse_stsd_data(c, pb, st, sc,
|
|
size - (avio_tell(pb) - start_pos));
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
/* this will read extra atoms at the end (wave, alac, damr, avcC, hvcC, SMI ...) */
|
|
a.size = size - (avio_tell(pb) - start_pos);
|
|
if (a.size > 8) {
|
|
if ((ret = mov_read_default(c, pb, a)) < 0)
|
|
return ret;
|
|
} else if (a.size > 0)
|
|
avio_skip(pb, a.size);
|
|
}
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
return mov_finalize_stsd_codec(c, pb, st, sc);
|
|
}
|
|
|
|
static int mov_read_stsd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int entries;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
entries = avio_rb32(pb);
|
|
|
|
return ff_mov_read_stsd_entries(c, pb, entries);
|
|
}
|
|
|
|
static int mov_read_stsc(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
|
|
entries = avio_rb32(pb);
|
|
|
|
av_dlog(c->fc, "track[%i].stsc.entries = %i\n", c->fc->nb_streams-1, entries);
|
|
|
|
if (!entries)
|
|
return 0;
|
|
if (sc->stsc_data)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated STSC atom\n");
|
|
av_free(sc->stsc_data);
|
|
sc->stsc_count = 0;
|
|
sc->stsc_data = av_malloc_array(entries, sizeof(*sc->stsc_data));
|
|
if (!sc->stsc_data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
sc->stsc_data[i].first = avio_rb32(pb);
|
|
sc->stsc_data[i].count = avio_rb32(pb);
|
|
sc->stsc_data[i].id = avio_rb32(pb);
|
|
}
|
|
|
|
sc->stsc_count = i;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned i, entries;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_rb32(pb); // version + flags
|
|
|
|
entries = avio_rb32(pb);
|
|
if (sc->stps_data)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated STPS atom\n");
|
|
av_free(sc->stps_data);
|
|
sc->stps_count = 0;
|
|
sc->stps_data = av_malloc_array(entries, sizeof(*sc->stps_data));
|
|
if (!sc->stps_data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
sc->stps_data[i] = avio_rb32(pb);
|
|
//av_dlog(c->fc, "stps %d\n", sc->stps_data[i]);
|
|
}
|
|
|
|
sc->stps_count = i;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
|
|
entries = avio_rb32(pb);
|
|
|
|
av_dlog(c->fc, "keyframe_count = %d\n", entries);
|
|
|
|
if (!entries)
|
|
{
|
|
sc->keyframe_absent = 1;
|
|
if (!st->need_parsing && st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
|
|
st->need_parsing = AVSTREAM_PARSE_HEADERS;
|
|
return 0;
|
|
}
|
|
if (sc->keyframes)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated STSS atom\n");
|
|
if (entries >= UINT_MAX / sizeof(int))
|
|
return AVERROR_INVALIDDATA;
|
|
av_freep(&sc->keyframes);
|
|
sc->keyframe_count = 0;
|
|
sc->keyframes = av_malloc_array(entries, sizeof(*sc->keyframes));
|
|
if (!sc->keyframes)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
sc->keyframes[i] = avio_rb32(pb);
|
|
//av_dlog(c->fc, "keyframes[]=%d\n", sc->keyframes[i]);
|
|
}
|
|
|
|
sc->keyframe_count = i;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_stsz(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries, sample_size, field_size, num_bytes;
|
|
GetBitContext gb;
|
|
unsigned char* buf;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
|
|
if (atom.type == MKTAG('s','t','s','z')) {
|
|
sample_size = avio_rb32(pb);
|
|
if (!sc->sample_size) /* do not overwrite value computed in stsd */
|
|
sc->sample_size = sample_size;
|
|
sc->stsz_sample_size = sample_size;
|
|
field_size = 32;
|
|
} else {
|
|
sample_size = 0;
|
|
avio_rb24(pb); /* reserved */
|
|
field_size = avio_r8(pb);
|
|
}
|
|
entries = avio_rb32(pb);
|
|
|
|
av_dlog(c->fc, "sample_size = %d sample_count = %d\n", sc->sample_size, entries);
|
|
|
|
sc->sample_count = entries;
|
|
if (sample_size)
|
|
return 0;
|
|
|
|
if (field_size != 4 && field_size != 8 && field_size != 16 && field_size != 32) {
|
|
av_log(c->fc, AV_LOG_ERROR, "Invalid sample field size %d\n", field_size);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (!entries)
|
|
return 0;
|
|
if (entries >= (UINT_MAX - 4) / field_size)
|
|
return AVERROR_INVALIDDATA;
|
|
if (sc->sample_sizes)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated STSZ atom\n");
|
|
av_free(sc->sample_sizes);
|
|
sc->sample_count = 0;
|
|
sc->sample_sizes = av_malloc_array(entries, sizeof(*sc->sample_sizes));
|
|
if (!sc->sample_sizes)
|
|
return AVERROR(ENOMEM);
|
|
|
|
num_bytes = (entries*field_size+4)>>3;
|
|
|
|
buf = av_malloc(num_bytes+FF_INPUT_BUFFER_PADDING_SIZE);
|
|
if (!buf) {
|
|
av_freep(&sc->sample_sizes);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
if (avio_read(pb, buf, num_bytes) < num_bytes) {
|
|
av_freep(&sc->sample_sizes);
|
|
av_free(buf);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
init_get_bits(&gb, buf, 8*num_bytes);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
sc->sample_sizes[i] = get_bits_long(&gb, field_size);
|
|
sc->data_size += sc->sample_sizes[i];
|
|
}
|
|
|
|
sc->sample_count = i;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
av_free(buf);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries;
|
|
int64_t duration=0;
|
|
int64_t total_sample_count=0;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
entries = avio_rb32(pb);
|
|
|
|
av_dlog(c->fc, "track[%i].stts.entries = %i\n",
|
|
c->fc->nb_streams-1, entries);
|
|
|
|
if (sc->stts_data)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated STTS atom\n");
|
|
av_free(sc->stts_data);
|
|
sc->stts_count = 0;
|
|
sc->stts_data = av_malloc_array(entries, sizeof(*sc->stts_data));
|
|
if (!sc->stts_data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
int sample_duration;
|
|
int sample_count;
|
|
|
|
sample_count=avio_rb32(pb);
|
|
sample_duration = avio_rb32(pb);
|
|
|
|
/* sample_duration < 0 is invalid based on the spec */
|
|
if (sample_duration < 0) {
|
|
av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta %d in STTS, at %d st:%d\n",
|
|
sample_duration, i, c->fc->nb_streams-1);
|
|
sample_duration = 1;
|
|
}
|
|
if (sample_count < 0) {
|
|
av_log(c->fc, AV_LOG_ERROR, "Invalid sample_count=%d\n", sample_count);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sc->stts_data[i].count= sample_count;
|
|
sc->stts_data[i].duration= sample_duration;
|
|
|
|
av_dlog(c->fc, "sample_count=%d, sample_duration=%d\n",
|
|
sample_count, sample_duration);
|
|
|
|
if ( i+1 == entries
|
|
&& i
|
|
&& sample_count == 1
|
|
&& total_sample_count > 100
|
|
&& sample_duration/10 > duration / total_sample_count)
|
|
sample_duration = duration / total_sample_count;
|
|
duration+=(int64_t)sample_duration*sample_count;
|
|
total_sample_count+=sample_count;
|
|
}
|
|
|
|
sc->stts_count = i;
|
|
|
|
sc->duration_for_fps += duration;
|
|
sc->nb_frames_for_fps += total_sample_count;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
st->nb_frames= total_sample_count;
|
|
if (duration)
|
|
st->duration= duration;
|
|
sc->track_end = duration;
|
|
return 0;
|
|
}
|
|
|
|
static void mov_update_dts_shift(MOVStreamContext *sc, int duration)
|
|
{
|
|
if (duration < 0) {
|
|
sc->dts_shift = FFMAX(sc->dts_shift, -duration);
|
|
}
|
|
}
|
|
|
|
static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
entries = avio_rb32(pb);
|
|
|
|
av_dlog(c->fc, "track[%i].ctts.entries = %i\n", c->fc->nb_streams-1, entries);
|
|
|
|
if (!entries)
|
|
return 0;
|
|
if (entries >= UINT_MAX / sizeof(*sc->ctts_data))
|
|
return AVERROR_INVALIDDATA;
|
|
sc->ctts_data = av_malloc(entries * sizeof(*sc->ctts_data));
|
|
if (!sc->ctts_data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
int count =avio_rb32(pb);
|
|
int duration =avio_rb32(pb);
|
|
|
|
sc->ctts_data[i].count = count;
|
|
sc->ctts_data[i].duration= duration;
|
|
|
|
av_dlog(c->fc, "count=%d, duration=%d\n",
|
|
count, duration);
|
|
|
|
if (FFABS(duration) > (1<<28) && i+2<entries) {
|
|
av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
|
|
av_freep(&sc->ctts_data);
|
|
sc->ctts_count = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (i+2<entries)
|
|
mov_update_dts_shift(sc, duration);
|
|
}
|
|
|
|
sc->ctts_count = i;
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
av_dlog(c->fc, "dts shift %d\n", sc->dts_shift);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_sbgp(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
unsigned int i, entries;
|
|
uint8_t version;
|
|
uint32_t grouping_type;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
version = avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
grouping_type = avio_rl32(pb);
|
|
if (grouping_type != MKTAG( 'r','a','p',' '))
|
|
return 0; /* only support 'rap ' grouping */
|
|
if (version == 1)
|
|
avio_rb32(pb); /* grouping_type_parameter */
|
|
|
|
entries = avio_rb32(pb);
|
|
if (!entries)
|
|
return 0;
|
|
if (sc->rap_group)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated SBGP atom\n");
|
|
av_free(sc->rap_group);
|
|
sc->rap_group_count = 0;
|
|
sc->rap_group = av_malloc_array(entries, sizeof(*sc->rap_group));
|
|
if (!sc->rap_group)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
sc->rap_group[i].count = avio_rb32(pb); /* sample_count */
|
|
sc->rap_group[i].index = avio_rb32(pb); /* group_description_index */
|
|
}
|
|
|
|
sc->rap_group_count = i;
|
|
|
|
return pb->eof_reached ? AVERROR_EOF : 0;
|
|
}
|
|
|
|
static void mov_build_index(MOVContext *mov, AVStream *st)
|
|
{
|
|
MOVStreamContext *sc = st->priv_data;
|
|
int64_t current_offset;
|
|
int64_t current_dts = 0;
|
|
unsigned int stts_index = 0;
|
|
unsigned int stsc_index = 0;
|
|
unsigned int stss_index = 0;
|
|
unsigned int stps_index = 0;
|
|
unsigned int i, j;
|
|
uint64_t stream_size = 0;
|
|
|
|
if (sc->elst_count) {
|
|
int i, edit_start_index = 0, unsupported = 0;
|
|
int64_t empty_duration = 0; // empty duration of the first edit list entry
|
|
int64_t start_time = 0; // start time of the media
|
|
|
|
for (i = 0; i < sc->elst_count; i++) {
|
|
const MOVElst *e = &sc->elst_data[i];
|
|
if (i == 0 && e->time == -1) {
|
|
/* if empty, the first entry is the start time of the stream
|
|
* relative to the presentation itself */
|
|
empty_duration = e->duration;
|
|
edit_start_index = 1;
|
|
} else if (i == edit_start_index && e->time >= 0) {
|
|
start_time = e->time;
|
|
} else
|
|
unsupported = 1;
|
|
}
|
|
if (unsupported)
|
|
av_log(mov->fc, AV_LOG_WARNING, "multiple edit list entries, "
|
|
"a/v desync might occur, patch welcome\n");
|
|
|
|
/* adjust first dts according to edit list */
|
|
if ((empty_duration || start_time) && mov->time_scale > 0) {
|
|
if (empty_duration)
|
|
empty_duration = av_rescale(empty_duration, sc->time_scale, mov->time_scale);
|
|
sc->time_offset = start_time - empty_duration;
|
|
current_dts = -sc->time_offset;
|
|
if (sc->ctts_count>0 && sc->stts_count>0 &&
|
|
sc->ctts_data[0].duration / FFMAX(sc->stts_data[0].duration, 1) > 16) {
|
|
/* more than 16 frames delay, dts are likely wrong
|
|
this happens with files created by iMovie */
|
|
sc->wrong_dts = 1;
|
|
st->codec->has_b_frames = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* only use old uncompressed audio chunk demuxing when stts specifies it */
|
|
if (!(st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
|
|
sc->stts_count == 1 && sc->stts_data[0].duration == 1)) {
|
|
unsigned int current_sample = 0;
|
|
unsigned int stts_sample = 0;
|
|
unsigned int sample_size;
|
|
unsigned int distance = 0;
|
|
unsigned int rap_group_index = 0;
|
|
unsigned int rap_group_sample = 0;
|
|
int rap_group_present = sc->rap_group_count && sc->rap_group;
|
|
int key_off = (sc->keyframe_count && sc->keyframes[0] > 0) || (sc->stps_count && sc->stps_data[0] > 0);
|
|
|
|
current_dts -= sc->dts_shift;
|
|
|
|
if (!sc->sample_count || st->nb_index_entries)
|
|
return;
|
|
if (sc->sample_count >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
|
|
return;
|
|
if (av_reallocp_array(&st->index_entries,
|
|
st->nb_index_entries + sc->sample_count,
|
|
sizeof(*st->index_entries)) < 0) {
|
|
st->nb_index_entries = 0;
|
|
return;
|
|
}
|
|
st->index_entries_allocated_size = (st->nb_index_entries + sc->sample_count) * sizeof(*st->index_entries);
|
|
|
|
for (i = 0; i < sc->chunk_count; i++) {
|
|
int64_t next_offset = i+1 < sc->chunk_count ? sc->chunk_offsets[i+1] : INT64_MAX;
|
|
current_offset = sc->chunk_offsets[i];
|
|
while (stsc_index + 1 < sc->stsc_count &&
|
|
i + 1 == sc->stsc_data[stsc_index + 1].first)
|
|
stsc_index++;
|
|
|
|
if (next_offset > current_offset && sc->sample_size>0 && sc->sample_size < sc->stsz_sample_size &&
|
|
sc->stsc_data[stsc_index].count * (int64_t)sc->stsz_sample_size > next_offset - current_offset) {
|
|
av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too large), ignoring\n", sc->stsz_sample_size);
|
|
sc->stsz_sample_size = sc->sample_size;
|
|
}
|
|
if (sc->stsz_sample_size>0 && sc->stsz_sample_size < sc->sample_size) {
|
|
av_log(mov->fc, AV_LOG_WARNING, "STSZ sample size %d invalid (too small), ignoring\n", sc->stsz_sample_size);
|
|
sc->stsz_sample_size = sc->sample_size;
|
|
}
|
|
|
|
for (j = 0; j < sc->stsc_data[stsc_index].count; j++) {
|
|
int keyframe = 0;
|
|
if (current_sample >= sc->sample_count) {
|
|
av_log(mov->fc, AV_LOG_ERROR, "wrong sample count\n");
|
|
return;
|
|
}
|
|
|
|
if (!sc->keyframe_absent && (!sc->keyframe_count || current_sample+key_off == sc->keyframes[stss_index])) {
|
|
keyframe = 1;
|
|
if (stss_index + 1 < sc->keyframe_count)
|
|
stss_index++;
|
|
} else if (sc->stps_count && current_sample+key_off == sc->stps_data[stps_index]) {
|
|
keyframe = 1;
|
|
if (stps_index + 1 < sc->stps_count)
|
|
stps_index++;
|
|
}
|
|
if (rap_group_present && rap_group_index < sc->rap_group_count) {
|
|
if (sc->rap_group[rap_group_index].index > 0)
|
|
keyframe = 1;
|
|
if (++rap_group_sample == sc->rap_group[rap_group_index].count) {
|
|
rap_group_sample = 0;
|
|
rap_group_index++;
|
|
}
|
|
}
|
|
if (sc->keyframe_absent
|
|
&& !sc->stps_count
|
|
&& !rap_group_present
|
|
&& (st->codec->codec_type == AVMEDIA_TYPE_AUDIO || (i==0 && j==0)))
|
|
keyframe = 1;
|
|
if (keyframe)
|
|
distance = 0;
|
|
sample_size = sc->stsz_sample_size > 0 ? sc->stsz_sample_size : sc->sample_sizes[current_sample];
|
|
if (sc->pseudo_stream_id == -1 ||
|
|
sc->stsc_data[stsc_index].id - 1 == sc->pseudo_stream_id) {
|
|
AVIndexEntry *e = &st->index_entries[st->nb_index_entries++];
|
|
e->pos = current_offset;
|
|
e->timestamp = current_dts;
|
|
e->size = sample_size;
|
|
e->min_distance = distance;
|
|
e->flags = keyframe ? AVINDEX_KEYFRAME : 0;
|
|
av_dlog(mov->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
|
|
"size %d, distance %d, keyframe %d\n", st->index, current_sample,
|
|
current_offset, current_dts, sample_size, distance, keyframe);
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && st->nb_index_entries < 100)
|
|
ff_rfps_add_frame(mov->fc, st, current_dts);
|
|
}
|
|
|
|
current_offset += sample_size;
|
|
stream_size += sample_size;
|
|
current_dts += sc->stts_data[stts_index].duration;
|
|
distance++;
|
|
stts_sample++;
|
|
current_sample++;
|
|
if (stts_index + 1 < sc->stts_count && stts_sample == sc->stts_data[stts_index].count) {
|
|
stts_sample = 0;
|
|
stts_index++;
|
|
}
|
|
}
|
|
}
|
|
if (st->duration > 0)
|
|
st->codec->bit_rate = stream_size*8*sc->time_scale/st->duration;
|
|
} else {
|
|
unsigned chunk_samples, total = 0;
|
|
|
|
// compute total chunk count
|
|
for (i = 0; i < sc->stsc_count; i++) {
|
|
unsigned count, chunk_count;
|
|
|
|
chunk_samples = sc->stsc_data[i].count;
|
|
if (i != sc->stsc_count - 1 &&
|
|
sc->samples_per_frame && chunk_samples % sc->samples_per_frame) {
|
|
av_log(mov->fc, AV_LOG_ERROR, "error unaligned chunk\n");
|
|
return;
|
|
}
|
|
|
|
if (sc->samples_per_frame >= 160) { // gsm
|
|
count = chunk_samples / sc->samples_per_frame;
|
|
} else if (sc->samples_per_frame > 1) {
|
|
unsigned samples = (1024/sc->samples_per_frame)*sc->samples_per_frame;
|
|
count = (chunk_samples+samples-1) / samples;
|
|
} else {
|
|
count = (chunk_samples+1023) / 1024;
|
|
}
|
|
|
|
if (i < sc->stsc_count - 1)
|
|
chunk_count = sc->stsc_data[i+1].first - sc->stsc_data[i].first;
|
|
else
|
|
chunk_count = sc->chunk_count - (sc->stsc_data[i].first - 1);
|
|
total += chunk_count * count;
|
|
}
|
|
|
|
av_dlog(mov->fc, "chunk count %d\n", total);
|
|
if (total >= UINT_MAX / sizeof(*st->index_entries) - st->nb_index_entries)
|
|
return;
|
|
if (av_reallocp_array(&st->index_entries,
|
|
st->nb_index_entries + total,
|
|
sizeof(*st->index_entries)) < 0) {
|
|
st->nb_index_entries = 0;
|
|
return;
|
|
}
|
|
st->index_entries_allocated_size = (st->nb_index_entries + total) * sizeof(*st->index_entries);
|
|
|
|
// populate index
|
|
for (i = 0; i < sc->chunk_count; i++) {
|
|
current_offset = sc->chunk_offsets[i];
|
|
if (stsc_index + 1 < sc->stsc_count &&
|
|
i + 1 == sc->stsc_data[stsc_index + 1].first)
|
|
stsc_index++;
|
|
chunk_samples = sc->stsc_data[stsc_index].count;
|
|
|
|
while (chunk_samples > 0) {
|
|
AVIndexEntry *e;
|
|
unsigned size, samples;
|
|
|
|
if (sc->samples_per_frame >= 160) { // gsm
|
|
samples = sc->samples_per_frame;
|
|
size = sc->bytes_per_frame;
|
|
} else {
|
|
if (sc->samples_per_frame > 1) {
|
|
samples = FFMIN((1024 / sc->samples_per_frame)*
|
|
sc->samples_per_frame, chunk_samples);
|
|
size = (samples / sc->samples_per_frame) * sc->bytes_per_frame;
|
|
} else {
|
|
samples = FFMIN(1024, chunk_samples);
|
|
size = samples * sc->sample_size;
|
|
}
|
|
}
|
|
|
|
if (st->nb_index_entries >= total) {
|
|
av_log(mov->fc, AV_LOG_ERROR, "wrong chunk count %d\n", total);
|
|
return;
|
|
}
|
|
e = &st->index_entries[st->nb_index_entries++];
|
|
e->pos = current_offset;
|
|
e->timestamp = current_dts;
|
|
e->size = size;
|
|
e->min_distance = 0;
|
|
e->flags = AVINDEX_KEYFRAME;
|
|
av_dlog(mov->fc, "AVIndex stream %d, chunk %d, offset %"PRIx64", dts %"PRId64", "
|
|
"size %d, duration %d\n", st->index, i, current_offset, current_dts,
|
|
size, samples);
|
|
|
|
current_offset += size;
|
|
current_dts += samples;
|
|
chunk_samples -= samples;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref,
|
|
AVIOInterruptCB *int_cb, int use_absolute_path, AVFormatContext *fc)
|
|
{
|
|
/* try relative path, we do not try the absolute because it can leak information about our
|
|
system to an attacker */
|
|
if (ref->nlvl_to > 0 && ref->nlvl_from > 0) {
|
|
char filename[1024];
|
|
const char *src_path;
|
|
int i, l;
|
|
|
|
/* find a source dir */
|
|
src_path = strrchr(src, '/');
|
|
if (src_path)
|
|
src_path++;
|
|
else
|
|
src_path = src;
|
|
|
|
/* find a next level down to target */
|
|
for (i = 0, l = strlen(ref->path) - 1; l >= 0; l--)
|
|
if (ref->path[l] == '/') {
|
|
if (i == ref->nlvl_to - 1)
|
|
break;
|
|
else
|
|
i++;
|
|
}
|
|
|
|
/* compose filename if next level down to target was found */
|
|
if (i == ref->nlvl_to - 1 && src_path - src < sizeof(filename)) {
|
|
memcpy(filename, src, src_path - src);
|
|
filename[src_path - src] = 0;
|
|
|
|
for (i = 1; i < ref->nlvl_from; i++)
|
|
av_strlcat(filename, "../", 1024);
|
|
|
|
av_strlcat(filename, ref->path + l + 1, 1024);
|
|
|
|
if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL))
|
|
return 0;
|
|
}
|
|
} else if (use_absolute_path) {
|
|
av_log(fc, AV_LOG_WARNING, "Using absolute path on user request, "
|
|
"this is a possible security issue\n");
|
|
if (!avio_open2(pb, ref->path, AVIO_FLAG_READ, int_cb, NULL))
|
|
return 0;
|
|
}
|
|
|
|
return AVERROR(ENOENT);
|
|
}
|
|
|
|
static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
|
|
{
|
|
if (sc->time_scale <= 0) {
|
|
av_log(c->fc, AV_LOG_WARNING, "stream %d, timescale not set\n", sc->ffindex);
|
|
sc->time_scale = c->time_scale;
|
|
if (sc->time_scale <= 0)
|
|
sc->time_scale = 1;
|
|
}
|
|
}
|
|
|
|
static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
int ret;
|
|
|
|
st = avformat_new_stream(c->fc, NULL);
|
|
if (!st) return AVERROR(ENOMEM);
|
|
st->id = c->fc->nb_streams;
|
|
sc = av_mallocz(sizeof(MOVStreamContext));
|
|
if (!sc) return AVERROR(ENOMEM);
|
|
|
|
st->priv_data = sc;
|
|
st->codec->codec_type = AVMEDIA_TYPE_DATA;
|
|
sc->ffindex = st->index;
|
|
|
|
if ((ret = mov_read_default(c, pb, atom)) < 0)
|
|
return ret;
|
|
|
|
/* sanity checks */
|
|
if (sc->chunk_count && (!sc->stts_count || !sc->stsc_count ||
|
|
(!sc->sample_size && !sc->sample_count))) {
|
|
av_log(c->fc, AV_LOG_ERROR, "stream %d, missing mandatory atoms, broken header\n",
|
|
st->index);
|
|
return 0;
|
|
}
|
|
|
|
fix_timescale(c, sc);
|
|
|
|
avpriv_set_pts_info(st, 64, 1, sc->time_scale);
|
|
|
|
mov_build_index(c, st);
|
|
|
|
if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
|
|
MOVDref *dref = &sc->drefs[sc->dref_id - 1];
|
|
if (mov_open_dref(&sc->pb, c->fc->filename, dref, &c->fc->interrupt_callback,
|
|
c->use_absolute_path, c->fc) < 0)
|
|
av_log(c->fc, AV_LOG_ERROR,
|
|
"stream %d, error opening alias: path='%s', dir='%s', "
|
|
"filename='%s', volume='%s', nlvl_from=%d, nlvl_to=%d\n",
|
|
st->index, dref->path, dref->dir, dref->filename,
|
|
dref->volume, dref->nlvl_from, dref->nlvl_to);
|
|
} else {
|
|
sc->pb = c->fc->pb;
|
|
sc->pb_is_copied = 1;
|
|
}
|
|
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
if (!st->sample_aspect_ratio.num &&
|
|
(st->codec->width != sc->width || st->codec->height != sc->height)) {
|
|
st->sample_aspect_ratio = av_d2q(((double)st->codec->height * sc->width) /
|
|
((double)st->codec->width * sc->height), INT_MAX);
|
|
}
|
|
|
|
#if FF_API_R_FRAME_RATE
|
|
if (sc->stts_count == 1 || (sc->stts_count == 2 && sc->stts_data[1].count == 1))
|
|
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
|
|
sc->time_scale, sc->stts_data[0].duration, INT_MAX);
|
|
#endif
|
|
}
|
|
|
|
// done for ai5q, ai52, ai55, ai1q, ai12 and ai15.
|
|
if (!st->codec->extradata_size && st->codec->codec_id == AV_CODEC_ID_H264 &&
|
|
TAG_IS_AVCI(st->codec->codec_tag)) {
|
|
ret = ff_generate_avci_extradata(st);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
switch (st->codec->codec_id) {
|
|
#if CONFIG_H261_DECODER
|
|
case AV_CODEC_ID_H261:
|
|
#endif
|
|
#if CONFIG_H263_DECODER
|
|
case AV_CODEC_ID_H263:
|
|
#endif
|
|
#if CONFIG_MPEG4_DECODER
|
|
case AV_CODEC_ID_MPEG4:
|
|
#endif
|
|
st->codec->width = 0; /* let decoder init width/height */
|
|
st->codec->height= 0;
|
|
break;
|
|
}
|
|
|
|
/* Do not need those anymore. */
|
|
av_freep(&sc->chunk_offsets);
|
|
av_freep(&sc->stsc_data);
|
|
av_freep(&sc->sample_sizes);
|
|
av_freep(&sc->keyframes);
|
|
av_freep(&sc->stts_data);
|
|
av_freep(&sc->stps_data);
|
|
av_freep(&sc->elst_data);
|
|
av_freep(&sc->rap_group);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_ilst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int ret;
|
|
c->itunes_metadata = 1;
|
|
ret = mov_read_default(c, pb, atom);
|
|
c->itunes_metadata = 0;
|
|
return ret;
|
|
}
|
|
|
|
static int mov_read_custom_2plus(MOVContext *c, AVIOContext *pb, int size)
|
|
{
|
|
int64_t end = avio_tell(pb) + size;
|
|
uint8_t *key = NULL, *val = NULL;
|
|
int i;
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
uint8_t **p;
|
|
uint32_t len, tag;
|
|
|
|
if (end - avio_tell(pb) <= 12)
|
|
break;
|
|
|
|
len = avio_rb32(pb);
|
|
tag = avio_rl32(pb);
|
|
avio_skip(pb, 4); // flags
|
|
|
|
if (len < 12 || len - 12 > end - avio_tell(pb))
|
|
break;
|
|
len -= 12;
|
|
|
|
if (tag == MKTAG('n', 'a', 'm', 'e'))
|
|
p = &key;
|
|
else if (tag == MKTAG('d', 'a', 't', 'a') && len > 4) {
|
|
avio_skip(pb, 4);
|
|
len -= 4;
|
|
p = &val;
|
|
} else
|
|
break;
|
|
|
|
*p = av_malloc(len + 1);
|
|
if (!*p)
|
|
break;
|
|
avio_read(pb, *p, len);
|
|
(*p)[len] = 0;
|
|
}
|
|
|
|
if (key && val) {
|
|
if (strcmp(key, "iTunSMPB") == 0) {
|
|
int priming, remainder, samples;
|
|
if(sscanf(val, "%*X %X %X %X", &priming, &remainder, &samples) == 3){
|
|
if(priming>0 && priming<16384)
|
|
sc->start_pad = priming;
|
|
}
|
|
}
|
|
if (strcmp(key, "cdec") != 0) {
|
|
av_dict_set(&c->fc->metadata, key, val,
|
|
AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
|
|
key = val = NULL;
|
|
}
|
|
}
|
|
|
|
avio_seek(pb, end, SEEK_SET);
|
|
av_freep(&key);
|
|
av_freep(&val);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_custom(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int64_t end = avio_tell(pb) + atom.size;
|
|
uint32_t tag, len;
|
|
|
|
if (atom.size < 8)
|
|
goto fail;
|
|
|
|
len = avio_rb32(pb);
|
|
tag = avio_rl32(pb);
|
|
|
|
if (len > atom.size)
|
|
goto fail;
|
|
|
|
if (tag == MKTAG('m', 'e', 'a', 'n') && len > 12) {
|
|
uint8_t domain[128];
|
|
int domain_len;
|
|
|
|
avio_skip(pb, 4); // flags
|
|
len -= 12;
|
|
|
|
domain_len = avio_get_str(pb, len, domain, sizeof(domain));
|
|
avio_skip(pb, len - domain_len);
|
|
return mov_read_custom_2plus(c, pb, end - avio_tell(pb));
|
|
}
|
|
|
|
fail:
|
|
av_log(c->fc, AV_LOG_VERBOSE,
|
|
"Unhandled or malformed custom metadata of size %"PRId64"\n", atom.size);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_meta(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
while (atom.size > 8) {
|
|
uint32_t tag = avio_rl32(pb);
|
|
atom.size -= 4;
|
|
if (tag == MKTAG('h','d','l','r')) {
|
|
avio_seek(pb, -8, SEEK_CUR);
|
|
atom.size += 8;
|
|
return mov_read_default(c, pb, atom);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int i;
|
|
int width;
|
|
int height;
|
|
int display_matrix[3][3];
|
|
AVStream *st;
|
|
MOVStreamContext *sc;
|
|
int version;
|
|
int flags;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return 0;
|
|
st = c->fc->streams[c->fc->nb_streams-1];
|
|
sc = st->priv_data;
|
|
|
|
version = avio_r8(pb);
|
|
flags = avio_rb24(pb);
|
|
st->disposition |= (flags & MOV_TKHD_FLAG_ENABLED) ? AV_DISPOSITION_DEFAULT : 0;
|
|
|
|
if (version == 1) {
|
|
avio_rb64(pb);
|
|
avio_rb64(pb);
|
|
} else {
|
|
avio_rb32(pb); /* creation time */
|
|
avio_rb32(pb); /* modification time */
|
|
}
|
|
st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
|
|
avio_rb32(pb); /* reserved */
|
|
|
|
/* highlevel (considering edits) duration in movie timebase */
|
|
(version == 1) ? avio_rb64(pb) : avio_rb32(pb);
|
|
avio_rb32(pb); /* reserved */
|
|
avio_rb32(pb); /* reserved */
|
|
|
|
avio_rb16(pb); /* layer */
|
|
avio_rb16(pb); /* alternate group */
|
|
avio_rb16(pb); /* volume */
|
|
avio_rb16(pb); /* reserved */
|
|
|
|
//read in the display matrix (outlined in ISO 14496-12, Section 6.2.2)
|
|
// they're kept in fixed point format through all calculations
|
|
// save u,v,z to store the whole matrix in the AV_PKT_DATA_DISPLAYMATRIX
|
|
// side data, but the scale factor is not needed to calculate aspect ratio
|
|
for (i = 0; i < 3; i++) {
|
|
display_matrix[i][0] = avio_rb32(pb); // 16.16 fixed point
|
|
display_matrix[i][1] = avio_rb32(pb); // 16.16 fixed point
|
|
display_matrix[i][2] = avio_rb32(pb); // 2.30 fixed point
|
|
}
|
|
|
|
width = avio_rb32(pb); // 16.16 fixed point track width
|
|
height = avio_rb32(pb); // 16.16 fixed point track height
|
|
sc->width = width >> 16;
|
|
sc->height = height >> 16;
|
|
|
|
// save the matrix and add rotate metadata when it is not the default
|
|
// identity
|
|
if (display_matrix[0][0] != (1 << 16) ||
|
|
display_matrix[1][1] != (1 << 16) ||
|
|
display_matrix[2][2] != (1 << 30) ||
|
|
display_matrix[0][1] || display_matrix[0][2] ||
|
|
display_matrix[1][0] || display_matrix[1][2] ||
|
|
display_matrix[2][0] || display_matrix[2][1]) {
|
|
int i, j;
|
|
double rotate;
|
|
|
|
av_freep(&sc->display_matrix);
|
|
sc->display_matrix = av_malloc(sizeof(int32_t) * 9);
|
|
if (!sc->display_matrix)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < 3; i++)
|
|
for (j = 0; j < 3; j++)
|
|
sc->display_matrix[i * 3 + j] = display_matrix[j][i];
|
|
|
|
rotate = av_display_rotation_get(sc->display_matrix);
|
|
if (!isnan(rotate)) {
|
|
char rotate_buf[64];
|
|
rotate = -rotate;
|
|
if (rotate < 0) // for backward compatibility
|
|
rotate += 360;
|
|
snprintf(rotate_buf, sizeof(rotate_buf), "%g", rotate);
|
|
av_dict_set(&st->metadata, "rotate", rotate_buf, 0);
|
|
}
|
|
}
|
|
|
|
// transform the display width/height according to the matrix
|
|
// to keep the same scale, use [width height 1<<16]
|
|
if (width && height && sc->display_matrix) {
|
|
double disp_transform[2];
|
|
|
|
#define SQR(a) ((a)*(double)(a))
|
|
for (i = 0; i < 2; i++)
|
|
disp_transform[i] = sqrt(SQR(display_matrix[i][0]) + SQR(display_matrix[i][1]));
|
|
|
|
if (disp_transform[0] > 0 && disp_transform[1] > 0 &&
|
|
disp_transform[0] < (1<<24) && disp_transform[1] < (1<<24) &&
|
|
fabs((disp_transform[0] / disp_transform[1]) - 1.0) > 0.01)
|
|
st->sample_aspect_ratio = av_d2q(
|
|
disp_transform[0] / disp_transform[1],
|
|
INT_MAX);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_tfhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
MOVFragment *frag = &c->fragment;
|
|
MOVTrackExt *trex = NULL;
|
|
MOVFragmentIndex* index = NULL;
|
|
int flags, track_id, i;
|
|
|
|
avio_r8(pb); /* version */
|
|
flags = avio_rb24(pb);
|
|
|
|
track_id = avio_rb32(pb);
|
|
if (!track_id)
|
|
return AVERROR_INVALIDDATA;
|
|
frag->track_id = track_id;
|
|
for (i = 0; i < c->trex_count; i++)
|
|
if (c->trex_data[i].track_id == frag->track_id) {
|
|
trex = &c->trex_data[i];
|
|
break;
|
|
}
|
|
if (!trex) {
|
|
av_log(c->fc, AV_LOG_ERROR, "could not find corresponding trex\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
for (i = 0; i < c->fragment_index_count; i++) {
|
|
MOVFragmentIndex* candidate = c->fragment_index_data[i];
|
|
if (candidate->track_id == frag->track_id) {
|
|
av_log(c->fc, AV_LOG_DEBUG,
|
|
"found fragment index for track %u\n", frag->track_id);
|
|
index = candidate;
|
|
break;
|
|
}
|
|
}
|
|
|
|
frag->base_data_offset = flags & MOV_TFHD_BASE_DATA_OFFSET ?
|
|
avio_rb64(pb) : flags & MOV_TFHD_DEFAULT_BASE_IS_MOOF ?
|
|
frag->moof_offset : frag->implicit_offset;
|
|
frag->stsd_id = flags & MOV_TFHD_STSD_ID ? avio_rb32(pb) : trex->stsd_id;
|
|
|
|
frag->duration = flags & MOV_TFHD_DEFAULT_DURATION ?
|
|
avio_rb32(pb) : trex->duration;
|
|
frag->size = flags & MOV_TFHD_DEFAULT_SIZE ?
|
|
avio_rb32(pb) : trex->size;
|
|
frag->flags = flags & MOV_TFHD_DEFAULT_FLAGS ?
|
|
avio_rb32(pb) : trex->flags;
|
|
frag->time = AV_NOPTS_VALUE;
|
|
if (index) {
|
|
int i, found = 0;
|
|
for (i = index->current_item; i < index->item_count; i++) {
|
|
if (frag->implicit_offset == index->items[i].moof_offset) {
|
|
av_log(c->fc, AV_LOG_DEBUG, "found fragment index entry "
|
|
"for track %u and moof_offset %"PRId64"\n",
|
|
frag->track_id, index->items[i].moof_offset);
|
|
frag->time = index->items[i].time;
|
|
index->current_item = i + 1;
|
|
found = 1;
|
|
}
|
|
}
|
|
if (!found) {
|
|
av_log(c->fc, AV_LOG_WARNING, "track %u has a fragment index "
|
|
"but it doesn't have an (in-order) entry for moof_offset "
|
|
"%"PRId64"\n", frag->track_id, frag->implicit_offset);
|
|
}
|
|
}
|
|
av_dlog(c->fc, "frag flags 0x%x\n", frag->flags);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_chap(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
c->chapter_track = avio_rb32(pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
MOVTrackExt *trex;
|
|
int err;
|
|
|
|
if ((uint64_t)c->trex_count+1 >= UINT_MAX / sizeof(*c->trex_data))
|
|
return AVERROR_INVALIDDATA;
|
|
if ((err = av_reallocp_array(&c->trex_data, c->trex_count + 1,
|
|
sizeof(*c->trex_data))) < 0) {
|
|
c->trex_count = 0;
|
|
return err;
|
|
}
|
|
|
|
c->fc->duration = AV_NOPTS_VALUE; // the duration from mvhd is not representing the whole file when fragments are used.
|
|
|
|
trex = &c->trex_data[c->trex_count++];
|
|
avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
trex->track_id = avio_rb32(pb);
|
|
trex->stsd_id = avio_rb32(pb);
|
|
trex->duration = avio_rb32(pb);
|
|
trex->size = avio_rb32(pb);
|
|
trex->flags = avio_rb32(pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
MOVFragment *frag = &c->fragment;
|
|
AVStream *st = NULL;
|
|
MOVStreamContext *sc;
|
|
int version, i;
|
|
|
|
for (i = 0; i < c->fc->nb_streams; i++) {
|
|
if (c->fc->streams[i]->id == frag->track_id) {
|
|
st = c->fc->streams[i];
|
|
break;
|
|
}
|
|
}
|
|
if (!st) {
|
|
av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sc = st->priv_data;
|
|
if (sc->pseudo_stream_id + 1 != frag->stsd_id)
|
|
return 0;
|
|
version = avio_r8(pb);
|
|
avio_rb24(pb); /* flags */
|
|
if (version) {
|
|
sc->track_end = avio_rb64(pb);
|
|
} else {
|
|
sc->track_end = avio_rb32(pb);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
MOVFragment *frag = &c->fragment;
|
|
AVStream *st = NULL;
|
|
MOVStreamContext *sc;
|
|
MOVStts *ctts_data;
|
|
uint64_t offset;
|
|
int64_t dts;
|
|
int data_offset = 0;
|
|
unsigned entries, first_sample_flags = frag->flags;
|
|
int flags, distance, i, found_keyframe = 0, err;
|
|
|
|
for (i = 0; i < c->fc->nb_streams; i++) {
|
|
if (c->fc->streams[i]->id == frag->track_id) {
|
|
st = c->fc->streams[i];
|
|
break;
|
|
}
|
|
}
|
|
if (!st) {
|
|
av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
sc = st->priv_data;
|
|
if (sc->pseudo_stream_id+1 != frag->stsd_id && sc->pseudo_stream_id != -1)
|
|
return 0;
|
|
avio_r8(pb); /* version */
|
|
flags = avio_rb24(pb);
|
|
entries = avio_rb32(pb);
|
|
av_dlog(c->fc, "flags 0x%x entries %d\n", flags, entries);
|
|
|
|
/* Always assume the presence of composition time offsets.
|
|
* Without this assumption, for instance, we cannot deal with a track in fragmented movies that meet the following.
|
|
* 1) in the initial movie, there are no samples.
|
|
* 2) in the first movie fragment, there is only one sample without composition time offset.
|
|
* 3) in the subsequent movie fragments, there are samples with composition time offset. */
|
|
if (!sc->ctts_count && sc->sample_count)
|
|
{
|
|
/* Complement ctts table if moov atom doesn't have ctts atom. */
|
|
ctts_data = av_realloc(NULL, sizeof(*sc->ctts_data));
|
|
if (!ctts_data)
|
|
return AVERROR(ENOMEM);
|
|
sc->ctts_data = ctts_data;
|
|
sc->ctts_data[sc->ctts_count].count = sc->sample_count;
|
|
sc->ctts_data[sc->ctts_count].duration = 0;
|
|
sc->ctts_count++;
|
|
}
|
|
if ((uint64_t)entries+sc->ctts_count >= UINT_MAX/sizeof(*sc->ctts_data))
|
|
return AVERROR_INVALIDDATA;
|
|
if ((err = av_reallocp_array(&sc->ctts_data, entries + sc->ctts_count,
|
|
sizeof(*sc->ctts_data))) < 0) {
|
|
sc->ctts_count = 0;
|
|
return err;
|
|
}
|
|
if (flags & MOV_TRUN_DATA_OFFSET) data_offset = avio_rb32(pb);
|
|
if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) first_sample_flags = avio_rb32(pb);
|
|
dts = sc->track_end - sc->time_offset;
|
|
offset = frag->base_data_offset + data_offset;
|
|
distance = 0;
|
|
av_dlog(c->fc, "first sample flags 0x%x\n", first_sample_flags);
|
|
for (i = 0; i < entries && !pb->eof_reached; i++) {
|
|
unsigned sample_size = frag->size;
|
|
int sample_flags = i ? frag->flags : first_sample_flags;
|
|
unsigned sample_duration = frag->duration;
|
|
int keyframe = 0;
|
|
|
|
if (flags & MOV_TRUN_SAMPLE_DURATION) sample_duration = avio_rb32(pb);
|
|
if (flags & MOV_TRUN_SAMPLE_SIZE) sample_size = avio_rb32(pb);
|
|
if (flags & MOV_TRUN_SAMPLE_FLAGS) sample_flags = avio_rb32(pb);
|
|
sc->ctts_data[sc->ctts_count].count = 1;
|
|
sc->ctts_data[sc->ctts_count].duration = (flags & MOV_TRUN_SAMPLE_CTS) ?
|
|
avio_rb32(pb) : 0;
|
|
mov_update_dts_shift(sc, sc->ctts_data[sc->ctts_count].duration);
|
|
if (frag->time != AV_NOPTS_VALUE) {
|
|
if (c->use_mfra_for == FF_MOV_FLAG_MFRA_PTS) {
|
|
int64_t pts = frag->time;
|
|
av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
|
|
" sc->dts_shift %d ctts.duration %d"
|
|
" sc->time_offset %"PRId64" flags & MOV_TRUN_SAMPLE_CTS %d\n", pts,
|
|
sc->dts_shift, sc->ctts_data[sc->ctts_count].duration,
|
|
sc->time_offset, flags & MOV_TRUN_SAMPLE_CTS);
|
|
dts = pts - sc->dts_shift;
|
|
if (flags & MOV_TRUN_SAMPLE_CTS) {
|
|
dts -= sc->ctts_data[sc->ctts_count].duration;
|
|
} else {
|
|
dts -= sc->time_offset;
|
|
}
|
|
av_log(c->fc, AV_LOG_DEBUG, "calculated into dts %"PRId64"\n", dts);
|
|
} else {
|
|
dts = frag->time;
|
|
av_log(c->fc, AV_LOG_DEBUG, "found frag time %"PRId64
|
|
", using it for dts\n", dts);
|
|
}
|
|
frag->time = AV_NOPTS_VALUE;
|
|
}
|
|
sc->ctts_count++;
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
|
|
keyframe = 1;
|
|
else if (!found_keyframe)
|
|
keyframe = found_keyframe =
|
|
!(sample_flags & (MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC |
|
|
MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES));
|
|
if (keyframe)
|
|
distance = 0;
|
|
av_add_index_entry(st, offset, dts, sample_size, distance,
|
|
keyframe ? AVINDEX_KEYFRAME : 0);
|
|
av_dlog(c->fc, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", "
|
|
"size %d, distance %d, keyframe %d\n", st->index, sc->sample_count+i,
|
|
offset, dts, sample_size, distance, keyframe);
|
|
distance++;
|
|
dts += sample_duration;
|
|
offset += sample_size;
|
|
sc->data_size += sample_size;
|
|
sc->duration_for_fps += sample_duration;
|
|
sc->nb_frames_for_fps ++;
|
|
}
|
|
|
|
if (pb->eof_reached)
|
|
return AVERROR_EOF;
|
|
|
|
frag->implicit_offset = offset;
|
|
st->duration = sc->track_end = dts + sc->time_offset;
|
|
return 0;
|
|
}
|
|
|
|
/* this atom should be null (from specs), but some buggy files put the 'moov' atom inside it... */
|
|
/* like the files created with Adobe Premiere 5.0, for samples see */
|
|
/* http://graphics.tudelft.nl/~wouter/publications/soundtests/ */
|
|
static int mov_read_wide(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int err;
|
|
|
|
if (atom.size < 8)
|
|
return 0; /* continue */
|
|
if (avio_rb32(pb) != 0) { /* 0 sized mdat atom... use the 'wide' atom size */
|
|
avio_skip(pb, atom.size - 4);
|
|
return 0;
|
|
}
|
|
atom.type = avio_rl32(pb);
|
|
atom.size -= 8;
|
|
if (atom.type != MKTAG('m','d','a','t')) {
|
|
avio_skip(pb, atom.size);
|
|
return 0;
|
|
}
|
|
err = mov_read_mdat(c, pb, atom);
|
|
return err;
|
|
}
|
|
|
|
static int mov_read_cmov(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
#if CONFIG_ZLIB
|
|
AVIOContext ctx;
|
|
uint8_t *cmov_data;
|
|
uint8_t *moov_data; /* uncompressed data */
|
|
long cmov_len, moov_len;
|
|
int ret = -1;
|
|
|
|
avio_rb32(pb); /* dcom atom */
|
|
if (avio_rl32(pb) != MKTAG('d','c','o','m'))
|
|
return AVERROR_INVALIDDATA;
|
|
if (avio_rl32(pb) != MKTAG('z','l','i','b')) {
|
|
av_log(c->fc, AV_LOG_ERROR, "unknown compression for cmov atom !\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
avio_rb32(pb); /* cmvd atom */
|
|
if (avio_rl32(pb) != MKTAG('c','m','v','d'))
|
|
return AVERROR_INVALIDDATA;
|
|
moov_len = avio_rb32(pb); /* uncompressed size */
|
|
cmov_len = atom.size - 6 * 4;
|
|
|
|
cmov_data = av_malloc(cmov_len);
|
|
if (!cmov_data)
|
|
return AVERROR(ENOMEM);
|
|
moov_data = av_malloc(moov_len);
|
|
if (!moov_data) {
|
|
av_free(cmov_data);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
avio_read(pb, cmov_data, cmov_len);
|
|
if (uncompress (moov_data, (uLongf *) &moov_len, (const Bytef *)cmov_data, cmov_len) != Z_OK)
|
|
goto free_and_return;
|
|
if (ffio_init_context(&ctx, moov_data, moov_len, 0, NULL, NULL, NULL, NULL) != 0)
|
|
goto free_and_return;
|
|
atom.type = MKTAG('m','o','o','v');
|
|
atom.size = moov_len;
|
|
ret = mov_read_default(c, &ctx, atom);
|
|
free_and_return:
|
|
av_free(moov_data);
|
|
av_free(cmov_data);
|
|
return ret;
|
|
#else
|
|
av_log(c->fc, AV_LOG_ERROR, "this file requires zlib support compiled in\n");
|
|
return AVERROR(ENOSYS);
|
|
#endif
|
|
}
|
|
|
|
/* edit list atom */
|
|
static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
MOVStreamContext *sc;
|
|
int i, edit_count, version;
|
|
|
|
if (c->fc->nb_streams < 1 || c->ignore_editlist)
|
|
return 0;
|
|
sc = c->fc->streams[c->fc->nb_streams-1]->priv_data;
|
|
|
|
version = avio_r8(pb); /* version */
|
|
avio_rb24(pb); /* flags */
|
|
edit_count = avio_rb32(pb); /* entries */
|
|
|
|
if (!edit_count)
|
|
return 0;
|
|
if (sc->elst_data)
|
|
av_log(c->fc, AV_LOG_WARNING, "Duplicated ELST atom\n");
|
|
av_free(sc->elst_data);
|
|
sc->elst_count = 0;
|
|
sc->elst_data = av_malloc_array(edit_count, sizeof(*sc->elst_data));
|
|
if (!sc->elst_data)
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_dlog(c->fc, "track[%i].edit_count = %i\n", c->fc->nb_streams-1, edit_count);
|
|
for (i = 0; i < edit_count && !pb->eof_reached; i++) {
|
|
MOVElst *e = &sc->elst_data[i];
|
|
|
|
if (version == 1) {
|
|
e->duration = avio_rb64(pb);
|
|
e->time = avio_rb64(pb);
|
|
} else {
|
|
e->duration = avio_rb32(pb); /* segment duration */
|
|
e->time = (int32_t)avio_rb32(pb); /* media time */
|
|
}
|
|
e->rate = avio_rb32(pb) / 65536.0;
|
|
av_dlog(c->fc, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
|
|
e->duration, e->time, e->rate);
|
|
}
|
|
sc->elst_count = i;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_tmcd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
MOVStreamContext *sc;
|
|
|
|
if (c->fc->nb_streams < 1)
|
|
return AVERROR_INVALIDDATA;
|
|
sc = c->fc->streams[c->fc->nb_streams - 1]->priv_data;
|
|
sc->timecode_track = avio_rb32(pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_uuid(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int ret;
|
|
uint8_t uuid[16];
|
|
static const uint8_t uuid_isml_manifest[] = {
|
|
0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd,
|
|
0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66
|
|
};
|
|
|
|
if (atom.size < sizeof(uuid) || atom.size == INT64_MAX)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
ret = avio_read(pb, uuid, sizeof(uuid));
|
|
if (ret < 0) {
|
|
return ret;
|
|
} else if (ret != sizeof(uuid)) {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (!memcmp(uuid, uuid_isml_manifest, sizeof(uuid))) {
|
|
uint8_t *buffer, *ptr;
|
|
char *endptr;
|
|
size_t len = atom.size - sizeof(uuid);
|
|
|
|
if (len < 4) {
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
ret = avio_skip(pb, 4); // zeroes
|
|
len -= 4;
|
|
|
|
buffer = av_mallocz(len + 1);
|
|
if (!buffer) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
ret = avio_read(pb, buffer, len);
|
|
if (ret < 0) {
|
|
av_free(buffer);
|
|
return ret;
|
|
} else if (ret != len) {
|
|
av_free(buffer);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ptr = buffer;
|
|
while ((ptr = av_stristr(ptr, "systemBitrate=\""))) {
|
|
ptr += sizeof("systemBitrate=\"") - 1;
|
|
c->bitrates_count++;
|
|
c->bitrates = av_realloc_f(c->bitrates, c->bitrates_count, sizeof(*c->bitrates));
|
|
if (!c->bitrates) {
|
|
c->bitrates_count = 0;
|
|
av_free(buffer);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
errno = 0;
|
|
ret = strtol(ptr, &endptr, 10);
|
|
if (ret < 0 || errno || *endptr != '"') {
|
|
c->bitrates[c->bitrates_count - 1] = 0;
|
|
} else {
|
|
c->bitrates[c->bitrates_count - 1] = ret;
|
|
}
|
|
}
|
|
|
|
av_free(buffer);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_free(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int ret;
|
|
uint8_t content[16];
|
|
|
|
if (atom.size < 8)
|
|
return 0;
|
|
|
|
ret = avio_read(pb, content, FFMIN(sizeof(content), atom.size));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if ( !c->found_moov
|
|
&& !c->found_mdat
|
|
&& !memcmp(content, "Anevia\x1A\x1A", 8)
|
|
&& c->use_mfra_for == FF_MOV_FLAG_MFRA_AUTO) {
|
|
c->use_mfra_for = FF_MOV_FLAG_MFRA_PTS;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const MOVParseTableEntry mov_default_parse_table[] = {
|
|
{ MKTAG('A','C','L','R'), mov_read_avid },
|
|
{ MKTAG('A','P','R','G'), mov_read_avid },
|
|
{ MKTAG('A','A','L','P'), mov_read_avid },
|
|
{ MKTAG('A','R','E','S'), mov_read_ares },
|
|
{ MKTAG('a','v','s','s'), mov_read_avss },
|
|
{ MKTAG('c','h','p','l'), mov_read_chpl },
|
|
{ MKTAG('c','o','6','4'), mov_read_stco },
|
|
{ MKTAG('c','o','l','r'), mov_read_colr },
|
|
{ MKTAG('c','t','t','s'), mov_read_ctts }, /* composition time to sample */
|
|
{ MKTAG('d','i','n','f'), mov_read_default },
|
|
{ MKTAG('D','p','x','E'), mov_read_dpxe },
|
|
{ MKTAG('d','r','e','f'), mov_read_dref },
|
|
{ MKTAG('e','d','t','s'), mov_read_default },
|
|
{ MKTAG('e','l','s','t'), mov_read_elst },
|
|
{ MKTAG('e','n','d','a'), mov_read_enda },
|
|
{ MKTAG('f','i','e','l'), mov_read_fiel },
|
|
{ MKTAG('f','t','y','p'), mov_read_ftyp },
|
|
{ MKTAG('g','l','b','l'), mov_read_glbl },
|
|
{ MKTAG('h','d','l','r'), mov_read_hdlr },
|
|
{ MKTAG('i','l','s','t'), mov_read_ilst },
|
|
{ MKTAG('j','p','2','h'), mov_read_jp2h },
|
|
{ MKTAG('m','d','a','t'), mov_read_mdat },
|
|
{ MKTAG('m','d','h','d'), mov_read_mdhd },
|
|
{ MKTAG('m','d','i','a'), mov_read_default },
|
|
{ MKTAG('m','e','t','a'), mov_read_meta },
|
|
{ MKTAG('m','i','n','f'), mov_read_default },
|
|
{ MKTAG('m','o','o','f'), mov_read_moof },
|
|
{ MKTAG('m','o','o','v'), mov_read_moov },
|
|
{ MKTAG('m','v','e','x'), mov_read_default },
|
|
{ MKTAG('m','v','h','d'), mov_read_mvhd },
|
|
{ MKTAG('S','M','I',' '), mov_read_svq3 },
|
|
{ MKTAG('a','l','a','c'), mov_read_alac }, /* alac specific atom */
|
|
{ MKTAG('a','v','c','C'), mov_read_glbl },
|
|
{ MKTAG('p','a','s','p'), mov_read_pasp },
|
|
{ MKTAG('s','t','b','l'), mov_read_default },
|
|
{ MKTAG('s','t','c','o'), mov_read_stco },
|
|
{ MKTAG('s','t','p','s'), mov_read_stps },
|
|
{ MKTAG('s','t','r','f'), mov_read_strf },
|
|
{ MKTAG('s','t','s','c'), mov_read_stsc },
|
|
{ MKTAG('s','t','s','d'), mov_read_stsd }, /* sample description */
|
|
{ MKTAG('s','t','s','s'), mov_read_stss }, /* sync sample */
|
|
{ MKTAG('s','t','s','z'), mov_read_stsz }, /* sample size */
|
|
{ MKTAG('s','t','t','s'), mov_read_stts },
|
|
{ MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
|
|
{ MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
|
|
{ MKTAG('t','f','d','t'), mov_read_tfdt },
|
|
{ MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
|
|
{ MKTAG('t','r','a','k'), mov_read_trak },
|
|
{ MKTAG('t','r','a','f'), mov_read_default },
|
|
{ MKTAG('t','r','e','f'), mov_read_default },
|
|
{ MKTAG('t','m','c','d'), mov_read_tmcd },
|
|
{ MKTAG('c','h','a','p'), mov_read_chap },
|
|
{ MKTAG('t','r','e','x'), mov_read_trex },
|
|
{ MKTAG('t','r','u','n'), mov_read_trun },
|
|
{ MKTAG('u','d','t','a'), mov_read_default },
|
|
{ MKTAG('w','a','v','e'), mov_read_wave },
|
|
{ MKTAG('e','s','d','s'), mov_read_esds },
|
|
{ MKTAG('d','a','c','3'), mov_read_dac3 }, /* AC-3 info */
|
|
{ MKTAG('d','e','c','3'), mov_read_dec3 }, /* EAC-3 info */
|
|
{ MKTAG('w','i','d','e'), mov_read_wide }, /* place holder */
|
|
{ MKTAG('w','f','e','x'), mov_read_wfex },
|
|
{ MKTAG('c','m','o','v'), mov_read_cmov },
|
|
{ MKTAG('c','h','a','n'), mov_read_chan }, /* channel layout */
|
|
{ MKTAG('d','v','c','1'), mov_read_dvc1 },
|
|
{ MKTAG('s','b','g','p'), mov_read_sbgp },
|
|
{ MKTAG('h','v','c','C'), mov_read_glbl },
|
|
{ MKTAG('u','u','i','d'), mov_read_uuid },
|
|
{ MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
|
|
{ MKTAG('f','r','e','e'), mov_read_free },
|
|
{ MKTAG('-','-','-','-'), mov_read_custom },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
|
|
{
|
|
int64_t total_size = 0;
|
|
MOVAtom a;
|
|
int i;
|
|
|
|
if (c->atom_depth > 10) {
|
|
av_log(c->fc, AV_LOG_ERROR, "Atoms too deeply nested\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
c->atom_depth ++;
|
|
|
|
if (atom.size < 0)
|
|
atom.size = INT64_MAX;
|
|
while (total_size + 8 <= atom.size && !avio_feof(pb)) {
|
|
int (*parse)(MOVContext*, AVIOContext*, MOVAtom) = NULL;
|
|
a.size = atom.size;
|
|
a.type=0;
|
|
if (atom.size >= 8) {
|
|
a.size = avio_rb32(pb);
|
|
a.type = avio_rl32(pb);
|
|
if (a.type == MKTAG('f','r','e','e') &&
|
|
a.size >= 8 &&
|
|
c->moov_retry) {
|
|
uint8_t buf[8];
|
|
uint32_t *type = (uint32_t *)buf + 1;
|
|
avio_read(pb, buf, 8);
|
|
avio_seek(pb, -8, SEEK_CUR);
|
|
if (*type == MKTAG('m','v','h','d') ||
|
|
*type == MKTAG('c','m','o','v')) {
|
|
av_log(c->fc, AV_LOG_ERROR, "Detected moov in a free atom.\n");
|
|
a.type = MKTAG('m','o','o','v');
|
|
}
|
|
}
|
|
if (atom.type != MKTAG('r','o','o','t') &&
|
|
atom.type != MKTAG('m','o','o','v'))
|
|
{
|
|
if (a.type == MKTAG('t','r','a','k') || a.type == MKTAG('m','d','a','t'))
|
|
{
|
|
av_log(c->fc, AV_LOG_ERROR, "Broken file, trak/mdat not at top-level\n");
|
|
avio_skip(pb, -8);
|
|
c->atom_depth --;
|
|
return 0;
|
|
}
|
|
}
|
|
total_size += 8;
|
|
if (a.size == 1 && total_size + 8 <= atom.size) { /* 64 bit extended size */
|
|
a.size = avio_rb64(pb) - 8;
|
|
total_size += 8;
|
|
}
|
|
}
|
|
av_dlog(c->fc, "type: %08x '%.4s' parent:'%.4s' sz: %"PRId64" %"PRId64" %"PRId64"\n",
|
|
a.type, (char*)&a.type, (char*)&atom.type, a.size, total_size, atom.size);
|
|
if (a.size == 0) {
|
|
a.size = atom.size - total_size + 8;
|
|
}
|
|
a.size -= 8;
|
|
if (a.size < 0)
|
|
break;
|
|
a.size = FFMIN(a.size, atom.size - total_size);
|
|
|
|
for (i = 0; mov_default_parse_table[i].type; i++)
|
|
if (mov_default_parse_table[i].type == a.type) {
|
|
parse = mov_default_parse_table[i].parse;
|
|
break;
|
|
}
|
|
|
|
// container is user data
|
|
if (!parse && (atom.type == MKTAG('u','d','t','a') ||
|
|
atom.type == MKTAG('i','l','s','t')))
|
|
parse = mov_read_udta_string;
|
|
|
|
if (!parse) { /* skip leaf atoms data */
|
|
avio_skip(pb, a.size);
|
|
} else {
|
|
int64_t start_pos = avio_tell(pb);
|
|
int64_t left;
|
|
int err = parse(c, pb, a);
|
|
if (err < 0) {
|
|
c->atom_depth --;
|
|
return err;
|
|
}
|
|
if (c->found_moov && c->found_mdat &&
|
|
((!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX) ||
|
|
start_pos + a.size == avio_size(pb))) {
|
|
if (!pb->seekable || c->fc->flags & AVFMT_FLAG_IGNIDX)
|
|
c->next_root_atom = start_pos + a.size;
|
|
c->atom_depth --;
|
|
return 0;
|
|
}
|
|
left = a.size - avio_tell(pb) + start_pos;
|
|
if (left > 0) /* skip garbage at atom end */
|
|
avio_skip(pb, left);
|
|
else if (left < 0) {
|
|
av_log(c->fc, AV_LOG_WARNING,
|
|
"overread end of atom '%.4s' by %"PRId64" bytes\n",
|
|
(char*)&a.type, -left);
|
|
avio_seek(pb, left, SEEK_CUR);
|
|
}
|
|
}
|
|
|
|
total_size += a.size;
|
|
}
|
|
|
|
if (total_size < atom.size && atom.size < 0x7ffff)
|
|
avio_skip(pb, atom.size - total_size);
|
|
|
|
c->atom_depth --;
|
|
return 0;
|
|
}
|
|
|
|
static int mov_probe(AVProbeData *p)
|
|
{
|
|
int64_t offset;
|
|
uint32_t tag;
|
|
int score = 0;
|
|
int moov_offset = -1;
|
|
|
|
/* check file header */
|
|
offset = 0;
|
|
for (;;) {
|
|
/* ignore invalid offset */
|
|
if ((offset + 8) > (unsigned int)p->buf_size)
|
|
break;
|
|
tag = AV_RL32(p->buf + offset + 4);
|
|
switch(tag) {
|
|
/* check for obvious tags */
|
|
case MKTAG('m','o','o','v'):
|
|
moov_offset = offset + 4;
|
|
case MKTAG('m','d','a','t'):
|
|
case MKTAG('p','n','o','t'): /* detect movs with preview pics like ew.mov and april.mov */
|
|
case MKTAG('u','d','t','a'): /* Packet Video PVAuthor adds this and a lot of more junk */
|
|
case MKTAG('f','t','y','p'):
|
|
if (AV_RB32(p->buf+offset) < 8 &&
|
|
(AV_RB32(p->buf+offset) != 1 ||
|
|
offset + 12 > (unsigned int)p->buf_size ||
|
|
AV_RB64(p->buf+offset + 8) == 0)) {
|
|
score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
|
|
} else if (tag == MKTAG('f','t','y','p') &&
|
|
AV_RL32(p->buf + offset + 8) == MKTAG('j','p','2',' ')) {
|
|
score = FFMAX(score, 5);
|
|
} else {
|
|
score = AVPROBE_SCORE_MAX;
|
|
}
|
|
offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
|
|
break;
|
|
/* those are more common words, so rate then a bit less */
|
|
case MKTAG('e','d','i','w'): /* xdcam files have reverted first tags */
|
|
case MKTAG('w','i','d','e'):
|
|
case MKTAG('f','r','e','e'):
|
|
case MKTAG('j','u','n','k'):
|
|
case MKTAG('p','i','c','t'):
|
|
score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
|
|
offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
|
|
break;
|
|
case MKTAG(0x82,0x82,0x7f,0x7d):
|
|
case MKTAG('s','k','i','p'):
|
|
case MKTAG('u','u','i','d'):
|
|
case MKTAG('p','r','f','l'):
|
|
/* if we only find those cause probedata is too small at least rate them */
|
|
score = FFMAX(score, AVPROBE_SCORE_EXTENSION);
|
|
offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
|
|
break;
|
|
default:
|
|
offset = FFMAX(4, AV_RB32(p->buf+offset)) + offset;
|
|
}
|
|
}
|
|
if(score > AVPROBE_SCORE_MAX - 50 && moov_offset != -1) {
|
|
/* moov atom in the header - we should make sure that this is not a
|
|
* MOV-packed MPEG-PS */
|
|
offset = moov_offset;
|
|
|
|
while(offset < (p->buf_size - 16)){ /* Sufficient space */
|
|
/* We found an actual hdlr atom */
|
|
if(AV_RL32(p->buf + offset ) == MKTAG('h','d','l','r') &&
|
|
AV_RL32(p->buf + offset + 8) == MKTAG('m','h','l','r') &&
|
|
AV_RL32(p->buf + offset + 12) == MKTAG('M','P','E','G')){
|
|
av_log(NULL, AV_LOG_WARNING, "Found media data tag MPEG indicating this is a MOV-packed MPEG-PS.\n");
|
|
/* We found a media handler reference atom describing an
|
|
* MPEG-PS-in-MOV, return a
|
|
* low score to force expanding the probe window until
|
|
* mpegps_probe finds what it needs */
|
|
return 5;
|
|
}else
|
|
/* Keep looking */
|
|
offset+=2;
|
|
}
|
|
}
|
|
|
|
return score;
|
|
}
|
|
|
|
// must be done after parsing all trak because there's no order requirement
|
|
static void mov_read_chapters(AVFormatContext *s)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
AVStream *st = NULL;
|
|
MOVStreamContext *sc;
|
|
int64_t cur_pos;
|
|
int i;
|
|
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
if (s->streams[i]->id == mov->chapter_track) {
|
|
st = s->streams[i];
|
|
break;
|
|
}
|
|
if (!st) {
|
|
av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
|
|
return;
|
|
}
|
|
|
|
st->discard = AVDISCARD_ALL;
|
|
sc = st->priv_data;
|
|
cur_pos = avio_tell(sc->pb);
|
|
|
|
for (i = 0; i < st->nb_index_entries; i++) {
|
|
AVIndexEntry *sample = &st->index_entries[i];
|
|
int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
|
|
uint8_t *title;
|
|
uint16_t ch;
|
|
int len, title_len;
|
|
|
|
if (end < sample->timestamp) {
|
|
av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
|
|
end = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
|
|
av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
|
|
goto finish;
|
|
}
|
|
|
|
// the first two bytes are the length of the title
|
|
len = avio_rb16(sc->pb);
|
|
if (len > sample->size-2)
|
|
continue;
|
|
title_len = 2*len + 1;
|
|
if (!(title = av_mallocz(title_len)))
|
|
goto finish;
|
|
|
|
// The samples could theoretically be in any encoding if there's an encd
|
|
// atom following, but in practice are only utf-8 or utf-16, distinguished
|
|
// instead by the presence of a BOM
|
|
if (!len) {
|
|
title[0] = 0;
|
|
} else {
|
|
ch = avio_rb16(sc->pb);
|
|
if (ch == 0xfeff)
|
|
avio_get_str16be(sc->pb, len, title, title_len);
|
|
else if (ch == 0xfffe)
|
|
avio_get_str16le(sc->pb, len, title, title_len);
|
|
else {
|
|
AV_WB16(title, ch);
|
|
if (len == 1 || len == 2)
|
|
title[len] = 0;
|
|
else
|
|
avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
|
|
}
|
|
}
|
|
|
|
avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
|
|
av_freep(&title);
|
|
}
|
|
finish:
|
|
avio_seek(sc->pb, cur_pos, SEEK_SET);
|
|
}
|
|
|
|
static int parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
|
|
uint32_t value, int flags)
|
|
{
|
|
AVTimecode tc;
|
|
char buf[AV_TIMECODE_STR_SIZE];
|
|
AVRational rate = {st->codec->time_base.den,
|
|
st->codec->time_base.num};
|
|
int ret = av_timecode_init(&tc, rate, flags, 0, s);
|
|
if (ret < 0)
|
|
return ret;
|
|
av_dict_set(&st->metadata, "timecode",
|
|
av_timecode_make_string(&tc, buf, value), 0);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
|
|
{
|
|
MOVStreamContext *sc = st->priv_data;
|
|
int flags = 0;
|
|
int64_t cur_pos = avio_tell(sc->pb);
|
|
uint32_t value;
|
|
|
|
if (!st->nb_index_entries)
|
|
return -1;
|
|
|
|
avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
|
|
value = avio_rb32(s->pb);
|
|
|
|
if (sc->tmcd_flags & 0x0001) flags |= AV_TIMECODE_FLAG_DROPFRAME;
|
|
if (sc->tmcd_flags & 0x0002) flags |= AV_TIMECODE_FLAG_24HOURSMAX;
|
|
if (sc->tmcd_flags & 0x0004) flags |= AV_TIMECODE_FLAG_ALLOWNEGATIVE;
|
|
|
|
/* Assume Counter flag is set to 1 in tmcd track (even though it is likely
|
|
* not the case) and thus assume "frame number format" instead of QT one.
|
|
* No sample with tmcd track can be found with a QT timecode at the moment,
|
|
* despite what the tmcd track "suggests" (Counter flag set to 0 means QT
|
|
* format). */
|
|
parse_timecode_in_framenum_format(s, st, value, flags);
|
|
|
|
avio_seek(sc->pb, cur_pos, SEEK_SET);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_close(AVFormatContext *s)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
int i, j;
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
|
|
av_freep(&sc->ctts_data);
|
|
for (j = 0; j < sc->drefs_count; j++) {
|
|
av_freep(&sc->drefs[j].path);
|
|
av_freep(&sc->drefs[j].dir);
|
|
}
|
|
av_freep(&sc->drefs);
|
|
|
|
sc->drefs_count = 0;
|
|
|
|
if (!sc->pb_is_copied)
|
|
avio_closep(&sc->pb);
|
|
|
|
sc->pb = NULL;
|
|
av_freep(&sc->chunk_offsets);
|
|
av_freep(&sc->stsc_data);
|
|
av_freep(&sc->sample_sizes);
|
|
av_freep(&sc->keyframes);
|
|
av_freep(&sc->stts_data);
|
|
av_freep(&sc->stps_data);
|
|
av_freep(&sc->elst_data);
|
|
av_freep(&sc->rap_group);
|
|
av_freep(&sc->display_matrix);
|
|
}
|
|
|
|
if (mov->dv_demux) {
|
|
avformat_free_context(mov->dv_fctx);
|
|
mov->dv_fctx = NULL;
|
|
}
|
|
|
|
av_freep(&mov->trex_data);
|
|
av_freep(&mov->bitrates);
|
|
|
|
for (i = 0; i < mov->fragment_index_count; i++) {
|
|
MOVFragmentIndex* index = mov->fragment_index_data[i];
|
|
av_freep(&index->items);
|
|
av_freep(&mov->fragment_index_data[i]);
|
|
}
|
|
av_freep(&mov->fragment_index_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tmcd_is_referenced(AVFormatContext *s, int tmcd_id)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
sc->timecode_track == tmcd_id)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* look for a tmcd track not referenced by any video track, and export it globally */
|
|
static void export_orphan_timecode(AVFormatContext *s)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
|
|
if (st->codec->codec_tag == MKTAG('t','m','c','d') &&
|
|
!tmcd_is_referenced(s, i + 1)) {
|
|
AVDictionaryEntry *tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
|
|
if (tcr) {
|
|
av_dict_set(&s->metadata, "timecode", tcr->value, 0);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int read_tfra(MOVContext *mov, AVIOContext *f)
|
|
{
|
|
MOVFragmentIndex* index = NULL;
|
|
int version, fieldlength, i, j;
|
|
int64_t pos = avio_tell(f);
|
|
uint32_t size = avio_rb32(f);
|
|
void *tmp;
|
|
|
|
if (avio_rb32(f) != MKBETAG('t', 'f', 'r', 'a')) {
|
|
return 1;
|
|
}
|
|
av_log(mov->fc, AV_LOG_VERBOSE, "found tfra\n");
|
|
index = av_mallocz(sizeof(MOVFragmentIndex));
|
|
if (!index) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
tmp = av_realloc_array(mov->fragment_index_data,
|
|
mov->fragment_index_count + 1,
|
|
sizeof(MOVFragmentIndex*));
|
|
if (!tmp) {
|
|
av_freep(&index);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
mov->fragment_index_data = tmp;
|
|
mov->fragment_index_data[mov->fragment_index_count++] = index;
|
|
|
|
version = avio_r8(f);
|
|
avio_rb24(f);
|
|
index->track_id = avio_rb32(f);
|
|
fieldlength = avio_rb32(f);
|
|
index->item_count = avio_rb32(f);
|
|
index->items = av_mallocz_array(
|
|
index->item_count, sizeof(MOVFragmentIndexItem));
|
|
if (!index->items) {
|
|
index->item_count = 0;
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
for (i = 0; i < index->item_count; i++) {
|
|
int64_t time, offset;
|
|
if (version == 1) {
|
|
time = avio_rb64(f);
|
|
offset = avio_rb64(f);
|
|
} else {
|
|
time = avio_rb32(f);
|
|
offset = avio_rb32(f);
|
|
}
|
|
index->items[i].time = time;
|
|
index->items[i].moof_offset = offset;
|
|
for (j = 0; j < ((fieldlength >> 4) & 3) + 1; j++)
|
|
avio_r8(f);
|
|
for (j = 0; j < ((fieldlength >> 2) & 3) + 1; j++)
|
|
avio_r8(f);
|
|
for (j = 0; j < ((fieldlength >> 0) & 3) + 1; j++)
|
|
avio_r8(f);
|
|
}
|
|
|
|
avio_seek(f, pos + size, SEEK_SET);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_read_mfra(MOVContext *c, AVIOContext *f)
|
|
{
|
|
int64_t stream_size = avio_size(f);
|
|
int64_t original_pos = avio_tell(f);
|
|
int64_t seek_ret;
|
|
int32_t mfra_size;
|
|
int ret = -1;
|
|
if ((seek_ret = avio_seek(f, stream_size - 4, SEEK_SET)) < 0) {
|
|
ret = seek_ret;
|
|
goto fail;
|
|
}
|
|
mfra_size = avio_rb32(f);
|
|
if (mfra_size < 0 || mfra_size > stream_size) {
|
|
av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (unreasonable size)\n");
|
|
goto fail;
|
|
}
|
|
if ((seek_ret = avio_seek(f, -mfra_size, SEEK_CUR)) < 0) {
|
|
ret = seek_ret;
|
|
goto fail;
|
|
}
|
|
if (avio_rb32(f) != mfra_size) {
|
|
av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (size mismatch)\n");
|
|
goto fail;
|
|
}
|
|
if (avio_rb32(f) != MKBETAG('m', 'f', 'r', 'a')) {
|
|
av_log(c->fc, AV_LOG_DEBUG, "doesn't look like mfra (tag mismatch)\n");
|
|
goto fail;
|
|
}
|
|
av_log(c->fc, AV_LOG_VERBOSE, "stream has mfra\n");
|
|
do {
|
|
ret = read_tfra(c, f);
|
|
if (ret < 0)
|
|
goto fail;
|
|
} while (!ret);
|
|
ret = 0;
|
|
fail:
|
|
seek_ret = avio_seek(f, original_pos, SEEK_SET);
|
|
if (seek_ret < 0) {
|
|
av_log(c->fc, AV_LOG_ERROR,
|
|
"failed to seek back after looking for mfra\n");
|
|
ret = seek_ret;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int mov_read_header(AVFormatContext *s)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
AVIOContext *pb = s->pb;
|
|
int j, err;
|
|
MOVAtom atom = { AV_RL32("root") };
|
|
int i;
|
|
|
|
mov->fc = s;
|
|
/* .mov and .mp4 aren't streamable anyway (only progressive download if moov is before mdat) */
|
|
if (pb->seekable)
|
|
atom.size = avio_size(pb);
|
|
else
|
|
atom.size = INT64_MAX;
|
|
|
|
/* check MOV header */
|
|
do {
|
|
if (mov->moov_retry)
|
|
avio_seek(pb, 0, SEEK_SET);
|
|
if ((err = mov_read_default(mov, pb, atom)) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "error reading header\n");
|
|
mov_read_close(s);
|
|
return err;
|
|
}
|
|
} while (pb->seekable && !mov->found_moov && !mov->moov_retry++);
|
|
if (!mov->found_moov) {
|
|
av_log(s, AV_LOG_ERROR, "moov atom not found\n");
|
|
mov_read_close(s);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
|
|
|
|
if (pb->seekable) {
|
|
if (mov->chapter_track > 0)
|
|
mov_read_chapters(s);
|
|
for (i = 0; i < s->nb_streams; i++)
|
|
if (s->streams[i]->codec->codec_tag == AV_RL32("tmcd"))
|
|
mov_read_timecode_track(s, s->streams[i]);
|
|
}
|
|
|
|
/* copy timecode metadata from tmcd tracks to the related video streams */
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
if (sc->timecode_track > 0) {
|
|
AVDictionaryEntry *tcr;
|
|
int tmcd_st_id = -1;
|
|
|
|
for (j = 0; j < s->nb_streams; j++)
|
|
if (s->streams[j]->id == sc->timecode_track)
|
|
tmcd_st_id = j;
|
|
|
|
if (tmcd_st_id < 0 || tmcd_st_id == i)
|
|
continue;
|
|
tcr = av_dict_get(s->streams[tmcd_st_id]->metadata, "timecode", NULL, 0);
|
|
if (tcr)
|
|
av_dict_set(&st->metadata, "timecode", tcr->value, 0);
|
|
}
|
|
}
|
|
export_orphan_timecode(s);
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
fix_timescale(mov, sc);
|
|
if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO && st->codec->codec_id == AV_CODEC_ID_AAC) {
|
|
st->skip_samples = sc->start_pad;
|
|
}
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && sc->nb_frames_for_fps > 0 && sc->duration_for_fps > 0)
|
|
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
|
|
sc->time_scale*(int64_t)sc->nb_frames_for_fps, sc->duration_for_fps, INT_MAX);
|
|
if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
|
|
if (st->codec->width <= 0 || st->codec->height <= 0) {
|
|
st->codec->width = sc->width;
|
|
st->codec->height = sc->height;
|
|
}
|
|
if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE) {
|
|
if ((err = mov_rewrite_dvd_sub_extradata(st)) < 0)
|
|
return err;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mov->trex_data) {
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
if (st->duration > 0)
|
|
st->codec->bit_rate = sc->data_size * 8 * sc->time_scale / st->duration;
|
|
}
|
|
}
|
|
|
|
if (mov->use_mfra_for > 0) {
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
if (sc->duration_for_fps > 0) {
|
|
st->codec->bit_rate = sc->data_size * 8 * sc->time_scale /
|
|
sc->duration_for_fps;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < mov->bitrates_count && i < s->nb_streams; i++) {
|
|
if (mov->bitrates[i]) {
|
|
s->streams[i]->codec->bit_rate = mov->bitrates[i];
|
|
}
|
|
}
|
|
|
|
ff_rfps_calculate(s);
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *st = s->streams[i];
|
|
MOVStreamContext *sc = st->priv_data;
|
|
|
|
switch (st->codec->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
err = ff_replaygain_export(st, s->metadata);
|
|
if (err < 0) {
|
|
mov_read_close(s);
|
|
return err;
|
|
}
|
|
break;
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
if (sc->display_matrix) {
|
|
AVPacketSideData *sd, *tmp;
|
|
|
|
tmp = av_realloc_array(st->side_data,
|
|
st->nb_side_data + 1, sizeof(*tmp));
|
|
if (!tmp)
|
|
return AVERROR(ENOMEM);
|
|
|
|
st->side_data = tmp;
|
|
st->nb_side_data++;
|
|
|
|
sd = &st->side_data[st->nb_side_data - 1];
|
|
sd->type = AV_PKT_DATA_DISPLAYMATRIX;
|
|
sd->size = sizeof(int32_t) * 9;
|
|
sd->data = (uint8_t*)sc->display_matrix;
|
|
sc->display_matrix = NULL;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st)
|
|
{
|
|
AVIndexEntry *sample = NULL;
|
|
int64_t best_dts = INT64_MAX;
|
|
int i;
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
AVStream *avst = s->streams[i];
|
|
MOVStreamContext *msc = avst->priv_data;
|
|
if (msc->pb && msc->current_sample < avst->nb_index_entries) {
|
|
AVIndexEntry *current_sample = &avst->index_entries[msc->current_sample];
|
|
int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale);
|
|
av_dlog(s, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts);
|
|
if (!sample || (!s->pb->seekable && current_sample->pos < sample->pos) ||
|
|
(s->pb->seekable &&
|
|
((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb &&
|
|
((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) ||
|
|
(FFABS(best_dts - dts) > AV_TIME_BASE && dts < best_dts)))))) {
|
|
sample = current_sample;
|
|
best_dts = dts;
|
|
*st = avst;
|
|
}
|
|
}
|
|
}
|
|
return sample;
|
|
}
|
|
|
|
static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
MOVStreamContext *sc;
|
|
AVIndexEntry *sample;
|
|
AVStream *st = NULL;
|
|
int ret;
|
|
mov->fc = s;
|
|
retry:
|
|
sample = mov_find_next_sample(s, &st);
|
|
if (!sample) {
|
|
mov->found_mdat = 0;
|
|
if (!mov->next_root_atom)
|
|
return AVERROR_EOF;
|
|
avio_seek(s->pb, mov->next_root_atom, SEEK_SET);
|
|
mov->next_root_atom = 0;
|
|
if (mov_read_default(mov, s->pb, (MOVAtom){ AV_RL32("root"), INT64_MAX }) < 0 ||
|
|
avio_feof(s->pb))
|
|
return AVERROR_EOF;
|
|
av_dlog(s, "read fragments, offset 0x%"PRIx64"\n", avio_tell(s->pb));
|
|
goto retry;
|
|
}
|
|
sc = st->priv_data;
|
|
/* must be done just before reading, to avoid infinite loop on sample */
|
|
sc->current_sample++;
|
|
|
|
if (mov->next_root_atom) {
|
|
sample->pos = FFMIN(sample->pos, mov->next_root_atom);
|
|
sample->size = FFMIN(sample->size, (mov->next_root_atom - sample->pos));
|
|
}
|
|
|
|
if (st->discard != AVDISCARD_ALL) {
|
|
if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
|
|
av_log(mov->fc, AV_LOG_ERROR, "stream %d, offset 0x%"PRIx64": partial file\n",
|
|
sc->ffindex, sample->pos);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
ret = av_get_packet(sc->pb, pkt, sample->size);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (sc->has_palette) {
|
|
uint8_t *pal;
|
|
|
|
pal = av_packet_new_side_data(pkt, AV_PKT_DATA_PALETTE, AVPALETTE_SIZE);
|
|
if (!pal) {
|
|
av_log(mov->fc, AV_LOG_ERROR, "Cannot append palette to packet\n");
|
|
} else {
|
|
memcpy(pal, sc->palette, AVPALETTE_SIZE);
|
|
sc->has_palette = 0;
|
|
}
|
|
}
|
|
#if CONFIG_DV_DEMUXER
|
|
if (mov->dv_demux && sc->dv_audio_container) {
|
|
avpriv_dv_produce_packet(mov->dv_demux, pkt, pkt->data, pkt->size, pkt->pos);
|
|
av_freep(&pkt->data);
|
|
pkt->size = 0;
|
|
ret = avpriv_dv_get_packet(mov->dv_demux, pkt);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
pkt->stream_index = sc->ffindex;
|
|
pkt->dts = sample->timestamp;
|
|
if (sc->ctts_data && sc->ctts_index < sc->ctts_count) {
|
|
pkt->pts = pkt->dts + sc->dts_shift + sc->ctts_data[sc->ctts_index].duration;
|
|
/* update ctts context */
|
|
sc->ctts_sample++;
|
|
if (sc->ctts_index < sc->ctts_count &&
|
|
sc->ctts_data[sc->ctts_index].count == sc->ctts_sample) {
|
|
sc->ctts_index++;
|
|
sc->ctts_sample = 0;
|
|
}
|
|
if (sc->wrong_dts)
|
|
pkt->dts = AV_NOPTS_VALUE;
|
|
} else {
|
|
int64_t next_dts = (sc->current_sample < st->nb_index_entries) ?
|
|
st->index_entries[sc->current_sample].timestamp : st->duration;
|
|
pkt->duration = next_dts - pkt->dts;
|
|
pkt->pts = pkt->dts;
|
|
}
|
|
if (st->discard == AVDISCARD_ALL)
|
|
goto retry;
|
|
pkt->flags |= sample->flags & AVINDEX_KEYFRAME ? AV_PKT_FLAG_KEY : 0;
|
|
pkt->pos = sample->pos;
|
|
av_dlog(s, "stream %d, pts %"PRId64", dts %"PRId64", pos 0x%"PRIx64", duration %d\n",
|
|
pkt->stream_index, pkt->pts, pkt->dts, pkt->pos, pkt->duration);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp, int flags)
|
|
{
|
|
MOVStreamContext *sc = st->priv_data;
|
|
int sample, time_sample;
|
|
int i;
|
|
|
|
sample = av_index_search_timestamp(st, timestamp, flags);
|
|
av_dlog(s, "stream %d, timestamp %"PRId64", sample %d\n", st->index, timestamp, sample);
|
|
if (sample < 0 && st->nb_index_entries && timestamp < st->index_entries[0].timestamp)
|
|
sample = 0;
|
|
if (sample < 0) /* not sure what to do */
|
|
return AVERROR_INVALIDDATA;
|
|
sc->current_sample = sample;
|
|
av_dlog(s, "stream %d, found sample %d\n", st->index, sc->current_sample);
|
|
/* adjust ctts index */
|
|
if (sc->ctts_data) {
|
|
time_sample = 0;
|
|
for (i = 0; i < sc->ctts_count; i++) {
|
|
int next = time_sample + sc->ctts_data[i].count;
|
|
if (next > sc->current_sample) {
|
|
sc->ctts_index = i;
|
|
sc->ctts_sample = sc->current_sample - time_sample;
|
|
break;
|
|
}
|
|
time_sample = next;
|
|
}
|
|
}
|
|
return sample;
|
|
}
|
|
|
|
static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_time, int flags)
|
|
{
|
|
AVStream *st;
|
|
int64_t seek_timestamp, timestamp;
|
|
int sample;
|
|
int i;
|
|
|
|
if (stream_index >= s->nb_streams)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
st = s->streams[stream_index];
|
|
sample = mov_seek_stream(s, st, sample_time, flags);
|
|
if (sample < 0)
|
|
return sample;
|
|
|
|
/* adjust seek timestamp to found sample timestamp */
|
|
seek_timestamp = st->index_entries[sample].timestamp;
|
|
|
|
for (i = 0; i < s->nb_streams; i++) {
|
|
MOVStreamContext *sc = s->streams[i]->priv_data;
|
|
st = s->streams[i];
|
|
st->skip_samples = (sample_time <= 0) ? sc->start_pad : 0;
|
|
|
|
if (stream_index == i)
|
|
continue;
|
|
|
|
timestamp = av_rescale_q(seek_timestamp, s->streams[stream_index]->time_base, st->time_base);
|
|
mov_seek_stream(s, st, timestamp, flags);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(MOVContext, x)
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
|
|
static const AVOption mov_options[] = {
|
|
{"use_absolute_path",
|
|
"allow using absolute path when opening alias, this is a possible security issue",
|
|
OFFSET(use_absolute_path), FF_OPT_TYPE_INT, {.i64 = 0},
|
|
0, 1, FLAGS},
|
|
{"ignore_editlist", "", OFFSET(ignore_editlist), FF_OPT_TYPE_INT, {.i64 = 0},
|
|
0, 1, FLAGS},
|
|
{"use_mfra_for",
|
|
"use mfra for fragment timestamps",
|
|
OFFSET(use_mfra_for), FF_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
|
|
-1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
|
|
"use_mfra_for"},
|
|
{"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
|
|
FLAGS, "use_mfra_for" },
|
|
{"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
|
|
FLAGS, "use_mfra_for" },
|
|
{"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
|
|
FLAGS, "use_mfra_for" },
|
|
{ "export_all", "Export unrecognized metadata entries", OFFSET(export_all),
|
|
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
|
|
{ "export_xmp", "Export full XMP metadata", OFFSET(export_xmp),
|
|
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass mov_class = {
|
|
.class_name = "mov,mp4,m4a,3gp,3g2,mj2",
|
|
.item_name = av_default_item_name,
|
|
.option = mov_options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
AVInputFormat ff_mov_demuxer = {
|
|
.name = "mov,mp4,m4a,3gp,3g2,mj2",
|
|
.long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
|
|
.priv_class = &mov_class,
|
|
.priv_data_size = sizeof(MOVContext),
|
|
.extensions = "mov,mp4,m4a,3gp,3g2,mj2",
|
|
.read_probe = mov_probe,
|
|
.read_header = mov_read_header,
|
|
.read_packet = mov_read_packet,
|
|
.read_close = mov_read_close,
|
|
.read_seek = mov_read_seek,
|
|
.flags = AVFMT_NO_BYTE_SEEK,
|
|
};
|