1370 lines
40 KiB
C
1370 lines
40 KiB
C
/*
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* MOV, 3GP, MP4 encoder.
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* Copyright (c) 2003 Thomas Raivio.
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* Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>.
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*
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* This library 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 of the License, or (at your option) any later version.
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*
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* This library 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 this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "avformat.h"
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#include "avi.h"
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#include "avio.h"
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#undef NDEBUG
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#include <assert.h>
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#define MOV_INDEX_CLUSTER_SIZE 16384
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#define globalTimescale 1000
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#define MODE_MP4 0
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#define MODE_MOV 1
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#define MODE_3GP 2
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typedef struct MOVIentry {
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unsigned int flags, pos, size;
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unsigned int samplesInChunk;
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char key_frame;
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unsigned int entries;
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} MOVIentry;
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typedef struct MOVIndex {
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int mode;
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int entry;
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int mdat_size;
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int ents_allocated;
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long timescale;
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long time;
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long trackDuration;
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long sampleCount;
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long sampleDuration;
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int hasKeyframes;
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int trackID;
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AVCodecContext *enc;
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int vosLen;
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uint8_t *vosData;
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MOVIentry** cluster;
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} MOVTrack;
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typedef struct {
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int mode;
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long time;
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int nb_streams;
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int mdat_written;
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offset_t mdat_pos;
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long timescale;
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MOVTrack tracks[MAX_STREAMS];
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} MOVContext;
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static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track);
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//FIXME supprt 64bit varaint with wide placeholders
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static int updateSize (ByteIOContext *pb, int pos)
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{
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long curpos = url_ftell(pb);
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url_fseek(pb, pos, SEEK_SET);
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put_be32(pb, curpos - pos); /* rewrite size */
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url_fseek(pb, curpos, SEEK_SET);
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return curpos - pos;
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}
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/* Chunk offset atom */
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static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
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{
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int i;
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int pos = url_ftell(pb);
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put_be32(pb, 0); /* size */
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put_tag(pb, "stco");
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put_be32(pb, 0); /* version & flags */
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put_be32(pb, track->entry); /* entry count */
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for (i=0; i<track->entry; i++) {
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int cl = i / MOV_INDEX_CLUSTER_SIZE;
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int id = i % MOV_INDEX_CLUSTER_SIZE;
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put_be32(pb, track->cluster[cl][id].pos);
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}
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return updateSize (pb, pos);
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}
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/* Sample size atom */
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static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
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{
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int equalChunks = 1;
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int i, j, entries = 0, tst = -1, oldtst = -1;
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int pos = url_ftell(pb);
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put_be32(pb, 0); /* size */
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put_tag(pb, "stsz");
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put_be32(pb, 0); /* version & flags */
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for (i=0; i<track->entry; i++) {
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int cl = i / MOV_INDEX_CLUSTER_SIZE;
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int id = i % MOV_INDEX_CLUSTER_SIZE;
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tst = track->cluster[cl][id].size/track->cluster[cl][id].entries;
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if(oldtst != -1 && tst != oldtst) {
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equalChunks = 0;
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}
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oldtst = tst;
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entries += track->cluster[cl][id].entries;
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}
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if (equalChunks) {
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int sSize = track->cluster[0][0].size/track->cluster[0][0].entries;
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put_be32(pb, sSize); // sample size
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put_be32(pb, entries); // sample count
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}
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else {
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put_be32(pb, 0); // sample size
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put_be32(pb, entries); // sample count
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for (i=0; i<track->entry; i++) {
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int cl = i / MOV_INDEX_CLUSTER_SIZE;
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int id = i % MOV_INDEX_CLUSTER_SIZE;
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for ( j=0; j<track->cluster[cl][id].entries; j++) {
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put_be32(pb, track->cluster[cl][id].size /
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track->cluster[cl][id].entries);
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}
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}
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}
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return updateSize (pb, pos);
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}
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/* Sample to chunk atom */
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static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
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{
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int index = 0, oldval = -1, i, entryPos, curpos;
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int pos = url_ftell(pb);
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put_be32(pb, 0); /* size */
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put_tag(pb, "stsc");
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put_be32(pb, 0); // version & flags
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entryPos = url_ftell(pb);
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put_be32(pb, track->entry); // entry count
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for (i=0; i<track->entry; i++) {
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int cl = i / MOV_INDEX_CLUSTER_SIZE;
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int id = i % MOV_INDEX_CLUSTER_SIZE;
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if(oldval != track->cluster[cl][id].samplesInChunk)
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{
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put_be32(pb, i+1); // first chunk
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put_be32(pb, track->cluster[cl][id].samplesInChunk); // samples per chunk
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put_be32(pb, 0x1); // sample description index
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oldval = track->cluster[cl][id].samplesInChunk;
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index++;
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}
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}
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curpos = url_ftell(pb);
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url_fseek(pb, entryPos, SEEK_SET);
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put_be32(pb, index); // rewrite size
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url_fseek(pb, curpos, SEEK_SET);
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return updateSize (pb, pos);
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}
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/* Sync sample atom */
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static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
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{
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long curpos;
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int i, index = 0, entryPos;
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int pos = url_ftell(pb);
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put_be32(pb, 0); // size
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put_tag(pb, "stss");
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put_be32(pb, 0); // version & flags
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entryPos = url_ftell(pb);
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put_be32(pb, track->entry); // entry count
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for (i=0; i<track->entry; i++) {
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int cl = i / MOV_INDEX_CLUSTER_SIZE;
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int id = i % MOV_INDEX_CLUSTER_SIZE;
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if(track->cluster[cl][id].key_frame == 1) {
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put_be32(pb, i+1);
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index++;
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}
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}
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curpos = url_ftell(pb);
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url_fseek(pb, entryPos, SEEK_SET);
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put_be32(pb, index); // rewrite size
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url_fseek(pb, curpos, SEEK_SET);
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return updateSize (pb, pos);
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}
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static int mov_write_damr_tag(ByteIOContext *pb)
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{
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put_be32(pb, 0x11); /* size */
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put_tag(pb, "damr");
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put_tag(pb, "FFMP");
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put_byte(pb, 0);
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put_be16(pb, 0x80); /* Mode set (all modes for AMR_NB) */
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put_be16(pb, 0xa); /* Mode change period (no restriction) */
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//put_be16(pb, 0x81ff); /* Mode set (all modes for AMR_NB) */
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//put_be16(pb, 1); /* Mode change period (no restriction) */
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return 0x11;
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}
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static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack* track)
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{
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int pos = url_ftell(pb);
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put_be32(pb, 0); /* size */
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put_tag(pb, "wave");
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put_be32(pb, 12); /* size */
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put_tag(pb, "frma");
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put_tag(pb, "mp4a");
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put_be32(pb, 12); /* size */
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put_tag(pb, "mp4a");
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put_be32(pb, 0);
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mov_write_esds_tag(pb, track);
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put_be32(pb, 12); /* size */
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put_tag(pb, "srcq");
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put_be32(pb, 0x40);
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put_be32(pb, 8); /* size */
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put_be32(pb, 0); /* null tag */
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return updateSize (pb, pos);
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}
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const CodecTag codec_movaudio_tags[] = {
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{ CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
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{ CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
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{ CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
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{ CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
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{ CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
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{ CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
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{ CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') },
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{ CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
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{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
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{ CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
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{ 0, 0 },
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};
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static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
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{
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int pos = url_ftell(pb);
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int tag;
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put_be32(pb, 0); /* size */
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tag = track->enc->codec_tag;
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if (!tag)
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tag = codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
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// if no mac fcc found, try with Microsoft tags
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if (!tag)
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{
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int tmp = codec_get_tag(codec_wav_tags, track->enc->codec_id);
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tag = MKTAG('m', 's', ((tmp >> 8) & 0xff), (tmp & 0xff));
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}
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put_le32(pb, tag); // store it byteswapped
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put_be32(pb, 0); /* Reserved */
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put_be16(pb, 0); /* Reserved */
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put_be16(pb, 1); /* Data-reference index, XXX == 1 */
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/* SoundDescription */
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if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC)
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put_be16(pb, 1); /* Version 1 */
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else
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put_be16(pb, 0); /* Version 0 */
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put_be16(pb, 0); /* Revision level */
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put_be32(pb, 0); /* Reserved */
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put_be16(pb, track->enc->channels); /* Number of channels */
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/* TODO: Currently hard-coded to 16-bit, there doesn't seem
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to be a good way to get number of bits of audio */
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put_be16(pb, 0x10); /* Reserved */
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if(track->enc->codec_id == CODEC_ID_AAC ||
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track->enc->codec_id == CODEC_ID_MP3)
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{
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put_be16(pb, 0xfffe); /* compression ID (vbr)*/
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}
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else
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{
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put_be16(pb, 0); /* compression ID (= 0) */
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}
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put_be16(pb, 0); /* packet size (= 0) */
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put_be16(pb, track->timescale); /* Time scale */
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put_be16(pb, 0); /* Reserved */
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if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC)
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{
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/* SoundDescription V1 extended info */
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put_be32(pb, track->enc->frame_size); /* Samples per packet */
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put_be32(pb, 1536); /* Bytes per packet */
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put_be32(pb, 2); /* Bytes per frame */
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put_be32(pb, 2); /* Bytes per sample */
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}
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if(track->enc->codec_id == CODEC_ID_AAC) {
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if( track->mode == MODE_MOV ) mov_write_wave_tag(pb, track);
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else mov_write_esds_tag(pb, track);
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}
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if(track->enc->codec_id == CODEC_ID_AMR_NB)
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mov_write_damr_tag(pb);
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return updateSize (pb, pos);
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}
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static int mov_write_d263_tag(ByteIOContext *pb)
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{
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put_be32(pb, 0xf); /* size */
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put_tag(pb, "d263");
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put_tag(pb, "FFMP");
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put_be16(pb, 0x0a);
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put_byte(pb, 0);
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return 0xf;
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}
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/* TODO: No idea about these values */
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static int mov_write_svq3_tag(ByteIOContext *pb)
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{
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put_be32(pb, 0x15);
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put_tag(pb, "SMI ");
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put_tag(pb, "SEQH");
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put_be32(pb, 0x5);
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put_be32(pb, 0xe2c0211d);
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put_be32(pb, 0xc0000000);
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put_byte(pb, 0);
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return 0x15;
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}
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static unsigned int descrLength(unsigned int len)
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{
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if (len < 0x00000080)
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return 2 + len;
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else if (len < 0x00004000)
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return 3 + len;
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else if(len < 0x00200000)
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return 4 + len;
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else
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return 5 + len;
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}
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static void putDescr(ByteIOContext *pb, int tag, int size)
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{
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uint32_t len;
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uint8_t vals[4];
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len = size;
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vals[3] = (uint8_t)(len & 0x7f);
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len >>= 7;
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vals[2] = (uint8_t)((len & 0x7f) | 0x80);
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len >>= 7;
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vals[1] = (uint8_t)((len & 0x7f) | 0x80);
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len >>= 7;
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vals[0] = (uint8_t)((len & 0x7f) | 0x80);
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put_byte(pb, tag); // DescriptorTag
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if (size < 0x00000080)
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{
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put_byte(pb, vals[3]);
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}
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else if (size < 0x00004000)
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{
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put_byte(pb, vals[2]);
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put_byte(pb, vals[3]);
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}
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else if (size < 0x00200000)
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{
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put_byte(pb, vals[1]);
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put_byte(pb, vals[2]);
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put_byte(pb, vals[3]);
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}
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else if (size < 0x10000000)
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{
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put_byte(pb, vals[0]);
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put_byte(pb, vals[1]);
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put_byte(pb, vals[2]);
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put_byte(pb, vals[3]);
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}
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}
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static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
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{
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int decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;
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int pos = url_ftell(pb);
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put_be32(pb, 0); // size
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put_tag(pb, "esds");
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put_be32(pb, 0); // Version
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// ES descriptor
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putDescr(pb, 0x03, 3 + descrLength(13 + decoderSpecificInfoLen) +
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descrLength(1));
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put_be16(pb, 0x0001); // ID (= 1)
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put_byte(pb, 0x00); // flags (= no flags)
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// DecoderConfig descriptor
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putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
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if(track->enc->codec_id == CODEC_ID_AAC)
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put_byte(pb, 0x40); // Object type indication
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else if(track->enc->codec_id == CODEC_ID_MPEG4)
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put_byte(pb, 0x20); // Object type indication (Visual 14496-2)
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if(track->enc->codec_type == CODEC_TYPE_AUDIO)
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put_byte(pb, 0x15); // flags (= Audiostream)
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else
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put_byte(pb, 0x11); // flags (= Visualstream)
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put_byte(pb, 0x0); // Buffersize DB (24 bits)
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put_be16(pb, 0x0dd2); // Buffersize DB
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// TODO: find real values for these
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put_be32(pb, 0x0002e918); // maxbitrate
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put_be32(pb, 0x00017e6b); // avg bitrate
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if (track->vosLen)
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{
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// DecoderSpecific info descriptor
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putDescr(pb, 0x05, track->vosLen);
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put_buffer(pb, track->vosData, track->vosLen);
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}
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// SL descriptor
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putDescr(pb, 0x06, 1);
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put_byte(pb, 0x02);
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return updateSize (pb, pos);
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}
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const CodecTag codec_movvideo_tags[] = {
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{ CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') },
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{ CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') },
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
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{ CODEC_ID_H263, MKTAG('s', '2', '6', '3') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
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{ 0, 0 },
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};
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static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
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{
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int pos = url_ftell(pb);
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char compressor_name[32];
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int tag;
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put_be32(pb, 0); /* size */
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tag = track->enc->codec_tag;
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if (!tag)
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tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
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// if no mac fcc found, try with Microsoft tags
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if (!tag)
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tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
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put_le32(pb, tag); // store it byteswapped
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put_be32(pb, 0); /* Reserved */
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put_be16(pb, 0); /* Reserved */
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put_be16(pb, 1); /* Data-reference index */
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put_be16(pb, 0); /* Codec stream version */
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put_be16(pb, 0); /* Codec stream revision (=0) */
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put_tag(pb, "FFMP"); /* Vendor */
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if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
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put_be32(pb, 0); /* Temporal Quality */
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put_be32(pb, 0x400); /* Spatial Quality = lossless*/
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} else {
|
|
put_be32(pb, 0x200); /* Temporal Quality = normal */
|
|
put_be32(pb, 0x200); /* Spatial Quality = normal */
|
|
}
|
|
put_be16(pb, track->enc->width); /* Video width */
|
|
put_be16(pb, track->enc->height); /* Video height */
|
|
put_be32(pb, 0x00480000); /* Horizontal resolution 72dpi */
|
|
put_be32(pb, 0x00480000); /* Vertical resolution 72dpi */
|
|
put_be32(pb, 0); /* Data size (= 0) */
|
|
put_be16(pb, 1); /* Frame count (= 1) */
|
|
|
|
memset(compressor_name,0,32);
|
|
if (track->enc->codec->name)
|
|
strncpy(compressor_name,track->enc->codec->name,31);
|
|
put_byte(pb, FFMAX(strlen(compressor_name),32) );
|
|
put_buffer(pb, compressor_name, 31);
|
|
|
|
put_be16(pb, 0x18); /* Reserved */
|
|
put_be16(pb, 0xffff); /* Reserved */
|
|
if(track->enc->codec_id == CODEC_ID_MPEG4)
|
|
mov_write_esds_tag(pb, track);
|
|
else if(track->enc->codec_id == CODEC_ID_H263)
|
|
mov_write_d263_tag(pb);
|
|
else if(track->enc->codec_id == CODEC_ID_SVQ3)
|
|
mov_write_svq3_tag(pb);
|
|
|
|
return updateSize (pb, pos);
|
|
}
|
|
|
|
static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "stsd");
|
|
put_be32(pb, 0); /* version & flags */
|
|
put_be32(pb, 1); /* entry count */
|
|
if (track->enc->codec_type == CODEC_TYPE_VIDEO)
|
|
mov_write_video_tag(pb, track);
|
|
else if (track->enc->codec_type == CODEC_TYPE_AUDIO)
|
|
mov_write_audio_tag(pb, track);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
/* TODO?: Currently all samples/frames seem to have same duration */
|
|
/* Time to sample atom */
|
|
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
put_be32(pb, 0x18); /* size */
|
|
put_tag(pb, "stts");
|
|
put_be32(pb, 0); /* version & flags */
|
|
put_be32(pb, 1); /* entry count */
|
|
|
|
put_be32(pb, track->sampleCount); /* sample count */
|
|
put_be32(pb, track->sampleDuration); /* sample duration */
|
|
return 0x18;
|
|
}
|
|
|
|
static int mov_write_dref_tag(ByteIOContext *pb)
|
|
{
|
|
put_be32(pb, 28); /* size */
|
|
put_tag(pb, "dref");
|
|
put_be32(pb, 0); /* version & flags */
|
|
put_be32(pb, 1); /* entry count */
|
|
|
|
put_be32(pb, 0xc); /* size */
|
|
put_tag(pb, "url ");
|
|
put_be32(pb, 1); /* version & flags */
|
|
|
|
return 28;
|
|
}
|
|
|
|
static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "stbl");
|
|
mov_write_stsd_tag(pb, track);
|
|
mov_write_stts_tag(pb, track);
|
|
if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
|
|
track->hasKeyframes)
|
|
mov_write_stss_tag(pb, track);
|
|
mov_write_stsc_tag(pb, track);
|
|
mov_write_stsz_tag(pb, track);
|
|
mov_write_stco_tag(pb, track);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
static int mov_write_dinf_tag(ByteIOContext *pb)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "dinf");
|
|
mov_write_dref_tag(pb);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
static int mov_write_smhd_tag(ByteIOContext *pb)
|
|
{
|
|
put_be32(pb, 16); /* size */
|
|
put_tag(pb, "smhd");
|
|
put_be32(pb, 0); /* version & flags */
|
|
put_be16(pb, 0); /* reserved (balance, normally = 0) */
|
|
put_be16(pb, 0); /* reserved */
|
|
return 16;
|
|
}
|
|
|
|
static int mov_write_vmhd_tag(ByteIOContext *pb)
|
|
{
|
|
put_be32(pb, 0x14); /* size (always 0x14) */
|
|
put_tag(pb, "vmhd");
|
|
put_be32(pb, 0x01); /* version & flags */
|
|
put_be64(pb, 0); /* reserved (graphics mode = copy) */
|
|
return 0x14;
|
|
}
|
|
|
|
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
char *descr, *hdlr, *hdlr_type;
|
|
int pos = url_ftell(pb);
|
|
|
|
if (!track) { /* no media --> data handler */
|
|
hdlr = "dhlr";
|
|
hdlr_type = "url ";
|
|
descr = "DataHandler";
|
|
} else {
|
|
hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
|
|
if (track->enc->codec_type == CODEC_TYPE_VIDEO) {
|
|
hdlr_type = "vide";
|
|
descr = "VideoHandler";
|
|
} else {
|
|
hdlr_type = "soun";
|
|
descr = "SoundHandler";
|
|
}
|
|
}
|
|
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "hdlr");
|
|
put_be32(pb, 0); /* Version & flags */
|
|
put_buffer(pb, hdlr, 4); /* handler */
|
|
put_tag(pb, hdlr_type); /* handler type */
|
|
put_be32(pb ,0); /* reserved */
|
|
put_be32(pb ,0); /* reserved */
|
|
put_be32(pb ,0); /* reserved */
|
|
put_byte(pb, strlen(descr)); /* string counter */
|
|
put_buffer(pb, descr, strlen(descr)); /* handler description */
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "minf");
|
|
if(track->enc->codec_type == CODEC_TYPE_VIDEO)
|
|
mov_write_vmhd_tag(pb);
|
|
else
|
|
mov_write_smhd_tag(pb);
|
|
if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
|
|
mov_write_hdlr_tag(pb, NULL);
|
|
mov_write_dinf_tag(pb);
|
|
mov_write_stbl_tag(pb, track);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
put_be32(pb, 32); /* size */
|
|
put_tag(pb, "mdhd");
|
|
put_be32(pb, 0); /* Version & flags */
|
|
put_be32(pb, track->time); /* creation time */
|
|
put_be32(pb, track->time); /* modification time */
|
|
put_be32(pb, track->timescale); /* time scale (sample rate for audio) */
|
|
put_be32(pb, track->trackDuration); /* duration */
|
|
put_be16(pb, 0); /* language, 0 = english */
|
|
put_be16(pb, 0); /* reserved (quality) */
|
|
return 32;
|
|
}
|
|
|
|
static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "mdia");
|
|
mov_write_mdhd_tag(pb, track);
|
|
mov_write_hdlr_tag(pb, track);
|
|
mov_write_minf_tag(pb, track);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
int64_t maxTrackLenTemp;
|
|
put_be32(pb, 0x5c); /* size (always 0x5c) */
|
|
put_tag(pb, "tkhd");
|
|
put_be32(pb, 0xf); /* version & flags (track enabled) */
|
|
put_be32(pb, track->time); /* creation time */
|
|
put_be32(pb, track->time); /* modification time */
|
|
put_be32(pb, track->trackID); /* track-id */
|
|
put_be32(pb, 0); /* reserved */
|
|
maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)track->trackDuration)/(int64_t)track->timescale;
|
|
put_be32(pb, (long)maxTrackLenTemp); /* duration */
|
|
|
|
put_be32(pb, 0); /* reserved */
|
|
put_be32(pb, 0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved (Layer & Alternate group) */
|
|
/* Volume, only for audio */
|
|
if(track->enc->codec_type == CODEC_TYPE_AUDIO)
|
|
put_be16(pb, 0x0100);
|
|
else
|
|
put_be16(pb, 0);
|
|
put_be16(pb, 0); /* reserved */
|
|
|
|
/* Matrix structure */
|
|
put_be32(pb, 0x00010000); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x00010000); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x40000000); /* reserved */
|
|
|
|
/* Track width and height, for visual only */
|
|
if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
|
|
double sample_aspect_ratio = av_q2d(track->enc->sample_aspect_ratio);
|
|
if( !sample_aspect_ratio ) sample_aspect_ratio = 1;
|
|
put_be32(pb, sample_aspect_ratio * track->enc->width*0x10000);
|
|
put_be32(pb, track->enc->height*0x10000);
|
|
}
|
|
else {
|
|
put_be32(pb, 0);
|
|
put_be32(pb, 0);
|
|
}
|
|
return 0x5c;
|
|
}
|
|
|
|
static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "trak");
|
|
mov_write_tkhd_tag(pb, track);
|
|
mov_write_mdia_tag(pb, track);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
/* TODO: Not sorted out, but not necessary either */
|
|
static int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
|
|
{
|
|
put_be32(pb, 0x15); /* size */
|
|
put_tag(pb, "iods");
|
|
put_be32(pb, 0); /* version & flags */
|
|
put_be16(pb, 0x1007);
|
|
put_byte(pb, 0);
|
|
put_be16(pb, 0x4fff);
|
|
put_be16(pb, 0xfffe);
|
|
put_be16(pb, 0x01ff);
|
|
return 0x15;
|
|
}
|
|
|
|
static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
|
|
{
|
|
int maxTrackID = 1, maxTrackLen = 0, i;
|
|
int64_t maxTrackLenTemp;
|
|
|
|
put_be32(pb, 0x6c); /* size (always 0x6c) */
|
|
put_tag(pb, "mvhd");
|
|
put_be32(pb, 0); /* version & flags */
|
|
put_be32(pb, mov->time); /* creation time */
|
|
put_be32(pb, mov->time); /* modification time */
|
|
put_be32(pb, mov->timescale); /* timescale */
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
if(mov->tracks[i].entry > 0) {
|
|
maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)mov->tracks[i].trackDuration)/(int64_t)mov->tracks[i].timescale;
|
|
if(maxTrackLen < maxTrackLenTemp)
|
|
maxTrackLen = maxTrackLenTemp;
|
|
if(maxTrackID < mov->tracks[i].trackID)
|
|
maxTrackID = mov->tracks[i].trackID;
|
|
}
|
|
}
|
|
put_be32(pb, maxTrackLen); /* duration of longest track */
|
|
|
|
put_be32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
|
|
put_be16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
|
|
put_be16(pb, 0); /* reserved */
|
|
put_be32(pb, 0); /* reserved */
|
|
put_be32(pb, 0); /* reserved */
|
|
|
|
/* Matrix structure */
|
|
put_be32(pb, 0x00010000); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x00010000); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x0); /* reserved */
|
|
put_be32(pb, 0x40000000); /* reserved */
|
|
|
|
put_be32(pb, 0); /* reserved (preview time) */
|
|
put_be32(pb, 0); /* reserved (preview duration) */
|
|
put_be32(pb, 0); /* reserved (poster time) */
|
|
put_be32(pb, 0); /* reserved (selection time) */
|
|
put_be32(pb, 0); /* reserved (selection duration) */
|
|
put_be32(pb, 0); /* reserved (current time) */
|
|
put_be32(pb, maxTrackID+1); /* Next track id */
|
|
return 0x6c;
|
|
}
|
|
|
|
static int mov_write_itunes_hdlr_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "hdlr");
|
|
put_be32(pb, 0);
|
|
put_be32(pb, 0);
|
|
put_tag(pb, "mdir");
|
|
put_tag(pb, "appl");
|
|
put_be32(pb, 0);
|
|
put_be32(pb, 0);
|
|
put_be16(pb, 0);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
/* helper function to write a data tag with the specified string as data */
|
|
static int mov_write_string_data_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s, const char *data)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "data");
|
|
put_be32(pb, 1);
|
|
put_be32(pb, 0);
|
|
put_buffer(pb, data, strlen(data));
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
/* iTunes name of the song/movie */
|
|
static int mov_write_nam_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->title[0] ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251nam");
|
|
mov_write_string_data_tag(pb, mov, s, s->title);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes name of the artist/performer */
|
|
static int mov_write_ART_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->author[0] ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251ART");
|
|
// we use the author here as this is the only thing that we have...
|
|
mov_write_string_data_tag(pb, mov, s, s->author);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes name of the writer */
|
|
static int mov_write_wrt_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->author[0] ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251wrt");
|
|
mov_write_string_data_tag(pb, mov, s, s->author);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes name of the album */
|
|
static int mov_write_alb_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->album[0] ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251alb");
|
|
mov_write_string_data_tag(pb, mov, s, s->album);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes year */
|
|
static int mov_write_day_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
char year[5];
|
|
int size = 0;
|
|
if ( s->year ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251day");
|
|
snprintf(year, 5, "%04d", s->year);
|
|
mov_write_string_data_tag(pb, mov, s, year);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes tool used to create the file */
|
|
static int mov_write_too_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251too");
|
|
mov_write_string_data_tag(pb, mov, s, LIBAVFORMAT_IDENT);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
/* iTunes comment */
|
|
static int mov_write_cmt_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->comment[0] ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251cmt");
|
|
mov_write_string_data_tag(pb, mov, s, s->comment);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes custom genre */
|
|
static int mov_write_gen_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->genre[0] ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251gen");
|
|
mov_write_string_data_tag(pb, mov, s, s->genre);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes track number */
|
|
static int mov_write_trkn_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
if ( s->track ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "trkn");
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "data");
|
|
put_be32(pb, 0); // 8 bytes empty
|
|
put_be32(pb, 0);
|
|
put_be16(pb, 0); // empty
|
|
put_be16(pb, s->track); // track number
|
|
put_be16(pb, 0); // total track number
|
|
put_be16(pb, 0); // empty
|
|
updateSize(pb, pos);
|
|
}
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/* iTunes meta data list */
|
|
static int mov_write_ilst_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "ilst");
|
|
mov_write_nam_tag(pb, mov, s);
|
|
mov_write_ART_tag(pb, mov, s);
|
|
mov_write_wrt_tag(pb, mov, s);
|
|
mov_write_alb_tag(pb, mov, s);
|
|
mov_write_day_tag(pb, mov, s);
|
|
mov_write_too_tag(pb, mov, s);
|
|
mov_write_cmt_tag(pb, mov, s);
|
|
mov_write_gen_tag(pb, mov, s);
|
|
mov_write_trkn_tag(pb, mov, s);
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
/* iTunes meta data tag */
|
|
static int mov_write_meta_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int size = 0;
|
|
|
|
// only save meta tag if required
|
|
if ( s->title[0] || s->author[0] || s->album[0] || s->year ||
|
|
s->comment[0] || s->genre[0] || s->track ) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "meta");
|
|
put_be32(pb, 0);
|
|
mov_write_itunes_hdlr_tag(pb, mov, s);
|
|
mov_write_ilst_tag(pb, mov, s);
|
|
size = updateSize(pb, pos);
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static int mov_write_udta_tag(ByteIOContext *pb, MOVContext* mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int pos = url_ftell(pb);
|
|
int i;
|
|
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "udta");
|
|
|
|
/* iTunes meta data */
|
|
mov_write_meta_tag(pb, mov, s);
|
|
|
|
/* Requirements */
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
if(mov->tracks[i].entry <= 0) continue;
|
|
if (mov->tracks[i].enc->codec_id == CODEC_ID_AAC ||
|
|
mov->tracks[i].enc->codec_id == CODEC_ID_MPEG4) {
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251req");
|
|
put_be16(pb, sizeof("QuickTime 6.0 or greater") - 1);
|
|
put_be16(pb, 0);
|
|
put_buffer(pb, "QuickTime 6.0 or greater",
|
|
sizeof("QuickTime 6.0 or greater") - 1);
|
|
updateSize(pb, pos);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Encoder */
|
|
if(!(mov->tracks[0].enc->flags & CODEC_FLAG_BITEXACT))
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251enc");
|
|
put_be16(pb, sizeof(LIBAVFORMAT_IDENT) - 1); /* string length */
|
|
put_be16(pb, 0);
|
|
put_buffer(pb, LIBAVFORMAT_IDENT, sizeof(LIBAVFORMAT_IDENT) - 1);
|
|
updateSize(pb, pos);
|
|
}
|
|
|
|
if( s->title[0] )
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251nam");
|
|
put_be16(pb, strlen(s->title)); /* string length */
|
|
put_be16(pb, 0);
|
|
put_buffer(pb, s->title, strlen(s->title));
|
|
updateSize(pb, pos);
|
|
}
|
|
|
|
if( s->author[0] )
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, /*"\251aut"*/ "\251day" );
|
|
put_be16(pb, strlen(s->author)); /* string length */
|
|
put_be16(pb, 0);
|
|
put_buffer(pb, s->author, strlen(s->author));
|
|
updateSize(pb, pos);
|
|
}
|
|
|
|
if( s->comment[0] )
|
|
{
|
|
int pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size */
|
|
put_tag(pb, "\251des");
|
|
put_be16(pb, strlen(s->comment)); /* string length */
|
|
put_be16(pb, 0);
|
|
put_buffer(pb, s->comment, strlen(s->comment));
|
|
updateSize(pb, pos);
|
|
}
|
|
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
static int mov_write_moov_tag(ByteIOContext *pb, MOVContext *mov,
|
|
AVFormatContext *s)
|
|
{
|
|
int pos, i;
|
|
pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size placeholder*/
|
|
put_tag(pb, "moov");
|
|
mov->timescale = globalTimescale;
|
|
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
if(mov->tracks[i].entry <= 0) continue;
|
|
|
|
if(mov->tracks[i].enc->codec_type == CODEC_TYPE_VIDEO) {
|
|
mov->tracks[i].timescale = mov->tracks[i].enc->frame_rate;
|
|
mov->tracks[i].sampleDuration = mov->tracks[i].enc->frame_rate_base;
|
|
}
|
|
else if(mov->tracks[i].enc->codec_type == CODEC_TYPE_AUDIO) {
|
|
/* If AMR, track timescale = 8000, AMR_WB = 16000 */
|
|
if(mov->tracks[i].enc->codec_id == CODEC_ID_AMR_NB) {
|
|
mov->tracks[i].sampleDuration = 160; // Bytes per chunk
|
|
mov->tracks[i].timescale = 8000;
|
|
}
|
|
else {
|
|
mov->tracks[i].timescale = mov->tracks[i].enc->sample_rate;
|
|
mov->tracks[i].sampleDuration = mov->tracks[i].enc->frame_size;
|
|
}
|
|
}
|
|
|
|
mov->tracks[i].trackDuration =
|
|
mov->tracks[i].sampleCount * mov->tracks[i].sampleDuration;
|
|
mov->tracks[i].time = mov->time;
|
|
mov->tracks[i].trackID = i+1;
|
|
}
|
|
|
|
mov_write_mvhd_tag(pb, mov);
|
|
//mov_write_iods_tag(pb, mov);
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
if(mov->tracks[i].entry > 0) {
|
|
mov_write_trak_tag(pb, &(mov->tracks[i]));
|
|
}
|
|
}
|
|
|
|
mov_write_udta_tag(pb, mov, s);
|
|
|
|
return updateSize(pb, pos);
|
|
}
|
|
|
|
int mov_write_mdat_tag(ByteIOContext *pb, MOVContext* mov)
|
|
{
|
|
mov->mdat_pos = url_ftell(pb);
|
|
put_be32(pb, 0); /* size placeholder*/
|
|
put_tag(pb, "mdat");
|
|
return 0;
|
|
}
|
|
|
|
/* TODO: This needs to be more general */
|
|
int mov_write_ftyp_tag(ByteIOContext *pb, AVFormatContext *s)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
|
|
put_be32(pb, 0x14 ); /* size */
|
|
put_tag(pb, "ftyp");
|
|
|
|
if ( mov->mode == MODE_3GP )
|
|
put_tag(pb, "3gp4");
|
|
else
|
|
put_tag(pb, "isom");
|
|
|
|
put_be32(pb, 0x200 );
|
|
|
|
if ( mov->mode == MODE_3GP )
|
|
put_tag(pb, "3gp4");
|
|
else
|
|
put_tag(pb, "mp41");
|
|
|
|
return 0x14;
|
|
}
|
|
|
|
static int mov_write_header(AVFormatContext *s)
|
|
{
|
|
ByteIOContext *pb = &s->pb;
|
|
MOVContext *mov = s->priv_data;
|
|
int i;
|
|
|
|
for(i=0; i<s->nb_streams; i++){
|
|
AVCodecContext *c= &s->streams[i]->codec;
|
|
|
|
if (c->codec_type == CODEC_TYPE_VIDEO){
|
|
if (!codec_get_tag(codec_movvideo_tags, c->codec_id)){
|
|
if(!codec_get_tag(codec_bmp_tags, c->codec_id))
|
|
return -1;
|
|
else
|
|
av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, the file may be unplayable!\n");
|
|
}
|
|
}else if(c->codec_type == CODEC_TYPE_AUDIO){
|
|
if (!codec_get_tag(codec_movaudio_tags, c->codec_id)){
|
|
if(!codec_get_tag(codec_wav_tags, c->codec_id))
|
|
return -1;
|
|
else
|
|
av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, the file may be unplayable!\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Default mode == MP4 */
|
|
mov->mode = MODE_MP4;
|
|
|
|
if (s->oformat != NULL) {
|
|
if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
|
|
else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
|
|
|
|
if ( mov->mode == MODE_3GP || mov->mode == MODE_MP4 )
|
|
mov_write_ftyp_tag(pb,s);
|
|
}
|
|
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
mov->tracks[i].mode = mov->mode;
|
|
}
|
|
|
|
put_flush_packet(pb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
ByteIOContext *pb = &s->pb;
|
|
AVCodecContext *enc = &s->streams[pkt->stream_index]->codec;
|
|
MOVTrack* trk = &mov->tracks[pkt->stream_index];
|
|
int cl, id;
|
|
unsigned int samplesInChunk = 0;
|
|
int size= pkt->size;
|
|
|
|
if (url_is_streamed(&s->pb)) return 0; /* Can't handle that */
|
|
if (!size) return 0; /* Discard 0 sized packets */
|
|
|
|
if (enc->codec_type == CODEC_TYPE_VIDEO ) {
|
|
samplesInChunk = 1;
|
|
}
|
|
else if (enc->codec_type == CODEC_TYPE_AUDIO ) {
|
|
if( enc->codec_id == CODEC_ID_AMR_NB) {
|
|
/* We must find out how many AMR blocks there are in one packet */
|
|
static uint16_t packed_size[16] =
|
|
{13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
|
|
int len = 0;
|
|
|
|
while (len < size && samplesInChunk < 100) {
|
|
len += packed_size[(pkt->data[len] >> 3) & 0x0F];
|
|
samplesInChunk++;
|
|
}
|
|
}
|
|
else if(enc->codec_id == CODEC_ID_PCM_ALAW) {
|
|
samplesInChunk = size/enc->channels;
|
|
}
|
|
else if(enc->codec_id == CODEC_ID_PCM_S16BE || enc->codec_id == CODEC_ID_PCM_S16LE) {
|
|
samplesInChunk = size/(2*enc->channels);
|
|
}
|
|
else {
|
|
samplesInChunk = 1;
|
|
}
|
|
}
|
|
|
|
if ((enc->codec_id == CODEC_ID_MPEG4 || enc->codec_id == CODEC_ID_AAC)
|
|
&& trk->vosLen == 0) {
|
|
// assert(enc->extradata_size);
|
|
|
|
trk->vosLen = enc->extradata_size;
|
|
trk->vosData = av_malloc(trk->vosLen);
|
|
memcpy(trk->vosData, enc->extradata, trk->vosLen);
|
|
}
|
|
|
|
cl = trk->entry / MOV_INDEX_CLUSTER_SIZE;
|
|
id = trk->entry % MOV_INDEX_CLUSTER_SIZE;
|
|
|
|
if (trk->ents_allocated <= trk->entry) {
|
|
trk->cluster = av_realloc(trk->cluster, (cl+1)*sizeof(void*));
|
|
if (!trk->cluster)
|
|
return -1;
|
|
trk->cluster[cl] = av_malloc(MOV_INDEX_CLUSTER_SIZE*sizeof(MOVIentry));
|
|
if (!trk->cluster[cl])
|
|
return -1;
|
|
trk->ents_allocated += MOV_INDEX_CLUSTER_SIZE;
|
|
}
|
|
if (mov->mdat_written == 0) {
|
|
mov_write_mdat_tag(pb, mov);
|
|
mov->mdat_written = 1;
|
|
mov->time = s->timestamp;
|
|
}
|
|
|
|
trk->cluster[cl][id].pos = url_ftell(pb);
|
|
trk->cluster[cl][id].samplesInChunk = samplesInChunk;
|
|
trk->cluster[cl][id].size = size;
|
|
trk->cluster[cl][id].entries = samplesInChunk;
|
|
if(enc->codec_type == CODEC_TYPE_VIDEO) {
|
|
trk->cluster[cl][id].key_frame = !!(pkt->flags & PKT_FLAG_KEY);
|
|
if(trk->cluster[cl][id].key_frame)
|
|
trk->hasKeyframes = 1;
|
|
}
|
|
trk->enc = enc;
|
|
trk->entry++;
|
|
trk->sampleCount += samplesInChunk;
|
|
trk->mdat_size += size;
|
|
|
|
put_buffer(pb, pkt->data, size);
|
|
|
|
put_flush_packet(pb);
|
|
return 0;
|
|
}
|
|
|
|
static int mov_write_trailer(AVFormatContext *s)
|
|
{
|
|
MOVContext *mov = s->priv_data;
|
|
ByteIOContext *pb = &s->pb;
|
|
int res = 0;
|
|
int i, j;
|
|
|
|
offset_t moov_pos = url_ftell(pb);
|
|
|
|
/* Write size of mdat tag */
|
|
for (i=0, j=0; i<MAX_STREAMS; i++) {
|
|
if(mov->tracks[i].ents_allocated > 0) {
|
|
j += mov->tracks[i].mdat_size;
|
|
}
|
|
}
|
|
url_fseek(pb, mov->mdat_pos, SEEK_SET);
|
|
put_be32(pb, j+8);
|
|
url_fseek(pb, moov_pos, SEEK_SET);
|
|
|
|
mov_write_moov_tag(pb, mov, s);
|
|
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
for (j=0; j<mov->tracks[i].ents_allocated/MOV_INDEX_CLUSTER_SIZE; j++) {
|
|
av_free(mov->tracks[i].cluster[j]);
|
|
}
|
|
av_free(mov->tracks[i].cluster);
|
|
if( mov->tracks[i].vosLen ) av_free( mov->tracks[i].vosData );
|
|
|
|
mov->tracks[i].cluster = NULL;
|
|
mov->tracks[i].ents_allocated = mov->tracks[i].entry = 0;
|
|
}
|
|
|
|
put_flush_packet(pb);
|
|
|
|
return res;
|
|
}
|
|
|
|
static AVOutputFormat mov_oformat = {
|
|
"mov",
|
|
"mov format",
|
|
NULL,
|
|
"mov",
|
|
sizeof(MOVContext),
|
|
CODEC_ID_AAC,
|
|
CODEC_ID_MPEG4,
|
|
mov_write_header,
|
|
mov_write_packet,
|
|
mov_write_trailer,
|
|
};
|
|
|
|
static AVOutputFormat _3gp_oformat = {
|
|
"3gp",
|
|
"3gp format",
|
|
NULL,
|
|
"3gp",
|
|
sizeof(MOVContext),
|
|
CODEC_ID_AMR_NB,
|
|
CODEC_ID_H263,
|
|
mov_write_header,
|
|
mov_write_packet,
|
|
mov_write_trailer,
|
|
};
|
|
|
|
static AVOutputFormat mp4_oformat = {
|
|
"mp4",
|
|
"mp4 format",
|
|
"application/mp4",
|
|
"mp4,m4a",
|
|
sizeof(MOVContext),
|
|
CODEC_ID_AAC,
|
|
CODEC_ID_MPEG4,
|
|
mov_write_header,
|
|
mov_write_packet,
|
|
mov_write_trailer,
|
|
};
|
|
|
|
int movenc_init(void)
|
|
{
|
|
av_register_output_format(&mov_oformat);
|
|
av_register_output_format(&_3gp_oformat);
|
|
av_register_output_format(&mp4_oformat);
|
|
return 0;
|
|
}
|