80e9e63c94
* commit '759001c534287a96dc96d1e274665feb7059145d': lavc decoders: work with refcounted frames. Anton Khirnov (1): lavc decoders: work with refcounted frames. Clément Bœsch (47): lavc/ansi: reset file lavc/ansi: re-do refcounted frame changes from Anton fraps: reset file lavc/fraps: switch to refcounted frames gifdec: reset file lavc/gifdec: switch to refcounted frames dsicinav: resolve conflicts smc: resolve conflicts zmbv: resolve conflicts rpza: resolve conflicts vble: resolve conflicts xxan: resolve conflicts targa: resolve conflicts vmnc: resolve conflicts utvideodec: resolve conflicts tscc: resolve conflicts ulti: resolve conflicts ffv1dec: resolve conflicts dnxhddec: resolve conflicts v210dec: resolve conflicts vp3: resolve conflicts vcr1: resolve conflicts v210x: resolve conflicts wavpack: resolve conflicts pngdec: fix compilation roqvideodec: resolve conflicts pictordec: resolve conflicts mdec: resolve conflicts tiertexseqv: resolve conflicts smacker: resolve conflicts vb: resolve conflicts vqavideo: resolve conflicts xl: resolve conflicts tmv: resolve conflicts vmdav: resolve conflicts truemotion1: resolve conflicts truemotion2: resolve conflicts lcldec: fix compilation libcelt_dec: fix compilation qdrw: fix compilation r210dec: fix compilation rl2: fix compilation wnv1: fix compilation yop: fix compilation tiff: resolve conflicts interplayvideo: fix compilation qpeg: resolve conflicts (FIXME/TESTME). Hendrik Leppkes (33): 012v: convert to refcounted frames 8bps: fix compilation 8svx: resolve conflicts 4xm: resolve conflicts aasc: resolve conflicts bfi: fix compilation aura: fix compilation alsdec: resolve conflicts avrndec: convert to refcounted frames avuidec: convert to refcounted frames bintext: convert to refcounted frames cavsdec: resolve conflicts brender_pix: convert to refcounted frames cinepak: resolve conflicts cinepak: avoid using AVFrame struct directly in private context cljr: fix compilation cpia: convert to refcounted frames cscd: resolve conflicts iff: resolve conflicts and do proper conversion to refcounted frames 4xm: fix reference frame handling cyuv: fix compilation dxa: fix compilation eacmv: fix compilation eamad: fix compilation eatgv: fix compilation escape124: remove unused variable. escape130: convert to refcounted frames evrcdec: convert to refcounted frames exr: convert to refcounted frames mvcdec: convert to refcounted frames paf: properly free the frame data on decode close sgirle: convert to refcounted frames lavfi/moviesrc: use refcounted frames Michael Niedermayer (56): Merge commit '759001c534287a96dc96d1e274665feb7059145d' resolve conflicts in headers motion_est: resolve conflict mpeg4videodec: fix conflicts dpcm conflict fix dpx: fix conflicts indeo3: resolve confilcts kmvc: resolve conflicts kmvc: resolve conflicts h264: resolve conflicts utils: resolve conflicts rawdec: resolve conflcits mpegvideo: resolve conflicts svq1enc: resolve conflicts mpegvideo: dont clear data, fix assertion failure on fate vsynth1 with threads pthreads: resolve conflicts frame_thread_encoder: simple compilefix not yet tested snow: update to buffer refs crytsalhd: fix compile dirac: switch to new API sonic: update to new API svq1: resolve conflict, update to new API ffwavesynth: update to new buffer API g729: update to new API indeo5: fix compile j2kdec: update to new buffer API linopencore-amr: fix compile libvorbisdec: update to new API loco: fix compile paf: update to new API proresdec: update to new API vp56: update to new api / resolve conflicts xface: convert to refcounted frames xan: fix compile&fate v408: update to ref counted buffers v308: update to ref counted buffers yuv4dec: update to ref counted buffers y41p: update to ref counted frames xbm: update to refcounted frames targa_y216: update to refcounted buffers qpeg: fix fate/crash cdxl: fix fate tscc: fix reget buffer useage targa_y216dec: fix style msmpeg4: fix fate h264: ref_picture() copy fields that have been lost too update_frame_pool: use channel field h264: Put code that prevents deadlocks back mpegvideo: dont allow last == current wmalossless: fix buffer ref messup ff_alloc_picture: free tables in case of dimension mismatches h264: fix null pointer dereference and assertion failure frame_thread_encoder: update to bufrefs ec: fix used arrays snowdec: fix off by 1 error in dimensions check h264: disallow single unpaired fields as references of frames Paul B Mahol (2): lavc/vima: convert to refcounted frames sanm: convert to refcounted frames Conflicts: libavcodec/4xm.c libavcodec/8bps.c libavcodec/8svx.c libavcodec/aasc.c libavcodec/alsdec.c libavcodec/anm.c libavcodec/ansi.c libavcodec/avs.c libavcodec/bethsoftvideo.c libavcodec/bfi.c libavcodec/c93.c libavcodec/cavsdec.c libavcodec/cdgraphics.c libavcodec/cinepak.c libavcodec/cljr.c libavcodec/cscd.c libavcodec/dnxhddec.c libavcodec/dpcm.c libavcodec/dpx.c libavcodec/dsicinav.c libavcodec/dvdec.c libavcodec/dxa.c libavcodec/eacmv.c libavcodec/eamad.c libavcodec/eatgq.c libavcodec/eatgv.c libavcodec/eatqi.c libavcodec/error_resilience.c libavcodec/escape124.c libavcodec/ffv1.h libavcodec/ffv1dec.c libavcodec/flicvideo.c libavcodec/fraps.c libavcodec/frwu.c libavcodec/g723_1.c libavcodec/gifdec.c libavcodec/h264.c libavcodec/h264.h libavcodec/h264_direct.c libavcodec/h264_loopfilter.c libavcodec/h264_refs.c libavcodec/huffyuvdec.c libavcodec/idcinvideo.c libavcodec/iff.c libavcodec/indeo2.c libavcodec/indeo3.c libavcodec/internal.h libavcodec/interplayvideo.c libavcodec/ivi_common.c libavcodec/jvdec.c libavcodec/kgv1dec.c libavcodec/kmvc.c libavcodec/lagarith.c libavcodec/libopenjpegdec.c libavcodec/mdec.c libavcodec/mimic.c libavcodec/mjpegbdec.c libavcodec/mjpegdec.c libavcodec/mmvideo.c libavcodec/motion_est.c libavcodec/motionpixels.c libavcodec/mpc7.c libavcodec/mpeg12.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/mpegvideo.h libavcodec/msrle.c libavcodec/msvideo1.c libavcodec/nuv.c libavcodec/options_table.h libavcodec/pcx.c libavcodec/pictordec.c libavcodec/pngdec.c libavcodec/pnmdec.c libavcodec/pthread.c libavcodec/qpeg.c libavcodec/qtrle.c libavcodec/r210dec.c libavcodec/rawdec.c libavcodec/roqvideodec.c libavcodec/rpza.c libavcodec/smacker.c libavcodec/smc.c libavcodec/svq1dec.c libavcodec/svq1enc.c libavcodec/targa.c libavcodec/tiertexseqv.c libavcodec/tiff.c libavcodec/tmv.c libavcodec/truemotion1.c libavcodec/truemotion2.c libavcodec/tscc.c libavcodec/ulti.c libavcodec/utils.c libavcodec/utvideodec.c libavcodec/v210dec.c libavcodec/v210x.c libavcodec/vb.c libavcodec/vble.c libavcodec/vcr1.c libavcodec/vmdav.c libavcodec/vmnc.c libavcodec/vp3.c libavcodec/vp56.c libavcodec/vp56.h libavcodec/vp6.c libavcodec/vqavideo.c libavcodec/wavpack.c libavcodec/xl.c libavcodec/xxan.c libavcodec/zmbv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
447 lines
13 KiB
C
447 lines
13 KiB
C
/*
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* Wing Commander/Xan Video Decoder
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* Copyright (C) 2011 Konstantin Shishkov
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* based on work by Mike Melanson
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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 "avcodec.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mem.h"
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#include "bytestream.h"
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#define BITSTREAM_READER_LE
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#include "get_bits.h"
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#include "internal.h"
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typedef struct XanContext {
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AVCodecContext *avctx;
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AVFrame pic;
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uint8_t *y_buffer;
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uint8_t *scratch_buffer;
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int buffer_size;
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GetByteContext gb;
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} XanContext;
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static av_cold int xan_decode_init(AVCodecContext *avctx)
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{
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XanContext *s = avctx->priv_data;
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s->avctx = avctx;
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avctx->pix_fmt = AV_PIX_FMT_YUV420P;
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if (avctx->height < 8) {
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av_log(avctx, AV_LOG_ERROR, "Invalid frame height: %d.\n", avctx->height);
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return AVERROR(EINVAL);
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}
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s->buffer_size = avctx->width * avctx->height;
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s->y_buffer = av_malloc(s->buffer_size);
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if (!s->y_buffer)
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return AVERROR(ENOMEM);
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s->scratch_buffer = av_malloc(s->buffer_size + 130);
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if (!s->scratch_buffer) {
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av_freep(&s->y_buffer);
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return AVERROR(ENOMEM);
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}
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return 0;
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}
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static int xan_unpack_luma(XanContext *s,
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uint8_t *dst, const int dst_size)
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{
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int tree_size, eof;
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int bits, mask;
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int tree_root, node;
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const uint8_t *dst_end = dst + dst_size;
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GetByteContext tree = s->gb;
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int start_off = bytestream2_tell(&tree);
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tree_size = bytestream2_get_byte(&s->gb);
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eof = bytestream2_get_byte(&s->gb);
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tree_root = eof + tree_size;
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bytestream2_skip(&s->gb, tree_size * 2);
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node = tree_root;
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bits = bytestream2_get_byte(&s->gb);
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mask = 0x80;
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for (;;) {
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int bit = !!(bits & mask);
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mask >>= 1;
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bytestream2_seek(&tree, start_off + node*2 + bit - eof * 2, SEEK_SET);
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node = bytestream2_get_byte(&tree);
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if (node == eof)
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break;
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if (node < eof) {
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*dst++ = node;
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if (dst > dst_end)
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break;
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node = tree_root;
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}
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if (!mask) {
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if (bytestream2_get_bytes_left(&s->gb) <= 0)
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break;
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bits = bytestream2_get_byteu(&s->gb);
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mask = 0x80;
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}
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}
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return dst != dst_end ? AVERROR_INVALIDDATA : 0;
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}
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/* almost the same as in xan_wc3 decoder */
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static int xan_unpack(XanContext *s,
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uint8_t *dest, const int dest_len)
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{
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uint8_t opcode;
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int size;
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uint8_t *orig_dest = dest;
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const uint8_t *dest_end = dest + dest_len;
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while (dest < dest_end) {
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if (bytestream2_get_bytes_left(&s->gb) <= 0)
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return AVERROR_INVALIDDATA;
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opcode = bytestream2_get_byteu(&s->gb);
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if (opcode < 0xe0) {
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int size2, back;
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if ((opcode & 0x80) == 0) {
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size = opcode & 3;
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back = ((opcode & 0x60) << 3) + bytestream2_get_byte(&s->gb) + 1;
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size2 = ((opcode & 0x1c) >> 2) + 3;
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} else if ((opcode & 0x40) == 0) {
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size = bytestream2_peek_byte(&s->gb) >> 6;
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back = (bytestream2_get_be16(&s->gb) & 0x3fff) + 1;
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size2 = (opcode & 0x3f) + 4;
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} else {
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size = opcode & 3;
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back = ((opcode & 0x10) << 12) + bytestream2_get_be16(&s->gb) + 1;
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size2 = ((opcode & 0x0c) << 6) + bytestream2_get_byte(&s->gb) + 5;
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if (size + size2 > dest_end - dest)
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break;
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}
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if (dest + size + size2 > dest_end ||
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dest - orig_dest + size < back)
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return AVERROR_INVALIDDATA;
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bytestream2_get_buffer(&s->gb, dest, size);
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dest += size;
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av_memcpy_backptr(dest, back, size2);
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dest += size2;
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} else {
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int finish = opcode >= 0xfc;
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size = finish ? opcode & 3 : ((opcode & 0x1f) << 2) + 4;
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if (dest_end - dest < size)
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return AVERROR_INVALIDDATA;
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bytestream2_get_buffer(&s->gb, dest, size);
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dest += size;
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if (finish)
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break;
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}
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}
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return dest - orig_dest;
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}
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static int xan_decode_chroma(AVCodecContext *avctx, unsigned chroma_off)
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{
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XanContext *s = avctx->priv_data;
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uint8_t *U, *V;
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int val, uval, vval;
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int i, j;
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const uint8_t *src, *src_end;
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const uint8_t *table;
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int mode, offset, dec_size, table_size;
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if (!chroma_off)
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return 0;
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if (chroma_off + 4 >= bytestream2_get_bytes_left(&s->gb)) {
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av_log(avctx, AV_LOG_ERROR, "Invalid chroma block position\n");
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return AVERROR_INVALIDDATA;
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}
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bytestream2_seek(&s->gb, chroma_off + 4, SEEK_SET);
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mode = bytestream2_get_le16(&s->gb);
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table = s->gb.buffer;
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table_size = bytestream2_get_le16(&s->gb);
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offset = table_size * 2;
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table_size += 1;
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if (offset >= bytestream2_get_bytes_left(&s->gb)) {
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av_log(avctx, AV_LOG_ERROR, "Invalid chroma block offset\n");
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return AVERROR_INVALIDDATA;
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}
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bytestream2_skip(&s->gb, offset);
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memset(s->scratch_buffer, 0, s->buffer_size);
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dec_size = xan_unpack(s, s->scratch_buffer, s->buffer_size);
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if (dec_size < 0) {
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av_log(avctx, AV_LOG_ERROR, "Chroma unpacking failed\n");
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return dec_size;
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}
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U = s->pic.data[1];
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V = s->pic.data[2];
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src = s->scratch_buffer;
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src_end = src + dec_size;
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if (mode) {
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for (j = 0; j < avctx->height >> 1; j++) {
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for (i = 0; i < avctx->width >> 1; i++) {
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if (src_end - src < 1)
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return 0;
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val = *src++;
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if (val) {
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if (val >= table_size)
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return AVERROR_INVALIDDATA;
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val = AV_RL16(table + (val << 1));
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uval = (val >> 3) & 0xF8;
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vval = (val >> 8) & 0xF8;
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U[i] = uval | (uval >> 5);
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V[i] = vval | (vval >> 5);
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}
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}
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U += s->pic.linesize[1];
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V += s->pic.linesize[2];
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}
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if (avctx->height & 1) {
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memcpy(U, U - s->pic.linesize[1], avctx->width >> 1);
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memcpy(V, V - s->pic.linesize[2], avctx->width >> 1);
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}
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} else {
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uint8_t *U2 = U + s->pic.linesize[1];
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uint8_t *V2 = V + s->pic.linesize[2];
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for (j = 0; j < avctx->height >> 2; j++) {
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for (i = 0; i < avctx->width >> 1; i += 2) {
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if (src_end - src < 1)
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return 0;
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val = *src++;
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if (val) {
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if (val >= table_size)
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return AVERROR_INVALIDDATA;
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val = AV_RL16(table + (val << 1));
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uval = (val >> 3) & 0xF8;
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vval = (val >> 8) & 0xF8;
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U[i] = U[i+1] = U2[i] = U2[i+1] = uval | (uval >> 5);
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V[i] = V[i+1] = V2[i] = V2[i+1] = vval | (vval >> 5);
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}
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}
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U += s->pic.linesize[1] * 2;
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V += s->pic.linesize[2] * 2;
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U2 += s->pic.linesize[1] * 2;
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V2 += s->pic.linesize[2] * 2;
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}
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if (avctx->height & 3) {
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int lines = ((avctx->height + 1) >> 1) - (avctx->height >> 2) * 2;
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memcpy(U, U - lines * s->pic.linesize[1], lines * s->pic.linesize[1]);
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memcpy(V, V - lines * s->pic.linesize[2], lines * s->pic.linesize[2]);
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}
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}
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return 0;
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}
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static int xan_decode_frame_type0(AVCodecContext *avctx)
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{
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XanContext *s = avctx->priv_data;
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uint8_t *ybuf, *prev_buf, *src = s->scratch_buffer;
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unsigned chroma_off, corr_off;
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int cur, last;
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int i, j;
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int ret;
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chroma_off = bytestream2_get_le32(&s->gb);
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corr_off = bytestream2_get_le32(&s->gb);
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if ((ret = xan_decode_chroma(avctx, chroma_off)) != 0)
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return ret;
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if (corr_off >= bytestream2_size(&s->gb)) {
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av_log(avctx, AV_LOG_WARNING, "Ignoring invalid correction block position\n");
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corr_off = 0;
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}
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bytestream2_seek(&s->gb, 12, SEEK_SET);
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ret = xan_unpack_luma(s, src, s->buffer_size >> 1);
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if (ret) {
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av_log(avctx, AV_LOG_ERROR, "Luma decoding failed\n");
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return ret;
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}
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ybuf = s->y_buffer;
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last = *src++;
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ybuf[0] = last << 1;
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for (j = 1; j < avctx->width - 1; j += 2) {
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cur = (last + *src++) & 0x1F;
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ybuf[j] = last + cur;
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ybuf[j+1] = cur << 1;
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last = cur;
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}
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if(j < avctx->width)
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ybuf[j] = last << 1;
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prev_buf = ybuf;
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ybuf += avctx->width;
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for (i = 1; i < avctx->height; i++) {
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last = ((prev_buf[0] >> 1) + *src++) & 0x1F;
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ybuf[0] = last << 1;
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for (j = 1; j < avctx->width - 1; j += 2) {
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cur = ((prev_buf[j + 1] >> 1) + *src++) & 0x1F;
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ybuf[j] = last + cur;
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ybuf[j+1] = cur << 1;
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last = cur;
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}
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if(j < avctx->width)
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ybuf[j] = last << 1;
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prev_buf = ybuf;
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ybuf += avctx->width;
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}
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if (corr_off) {
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int dec_size;
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bytestream2_seek(&s->gb, 8 + corr_off, SEEK_SET);
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dec_size = xan_unpack(s, s->scratch_buffer, s->buffer_size);
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if (dec_size < 0)
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dec_size = 0;
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else
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dec_size = FFMIN(dec_size, s->buffer_size/2 - 1);
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for (i = 0; i < dec_size; i++)
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s->y_buffer[i*2+1] = (s->y_buffer[i*2+1] + (s->scratch_buffer[i] << 1)) & 0x3F;
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}
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src = s->y_buffer;
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ybuf = s->pic.data[0];
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for (j = 0; j < avctx->height; j++) {
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for (i = 0; i < avctx->width; i++)
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ybuf[i] = (src[i] << 2) | (src[i] >> 3);
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src += avctx->width;
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ybuf += s->pic.linesize[0];
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}
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return 0;
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}
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static int xan_decode_frame_type1(AVCodecContext *avctx)
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{
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XanContext *s = avctx->priv_data;
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uint8_t *ybuf, *src = s->scratch_buffer;
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int cur, last;
|
|
int i, j;
|
|
int ret;
|
|
|
|
if ((ret = xan_decode_chroma(avctx, bytestream2_get_le32(&s->gb))) != 0)
|
|
return ret;
|
|
|
|
bytestream2_seek(&s->gb, 16, SEEK_SET);
|
|
ret = xan_unpack_luma(s, src,
|
|
s->buffer_size >> 1);
|
|
if (ret) {
|
|
av_log(avctx, AV_LOG_ERROR, "Luma decoding failed\n");
|
|
return ret;
|
|
}
|
|
|
|
ybuf = s->y_buffer;
|
|
for (i = 0; i < avctx->height; i++) {
|
|
last = (ybuf[0] + (*src++ << 1)) & 0x3F;
|
|
ybuf[0] = last;
|
|
for (j = 1; j < avctx->width - 1; j += 2) {
|
|
cur = (ybuf[j + 1] + (*src++ << 1)) & 0x3F;
|
|
ybuf[j] = (last + cur) >> 1;
|
|
ybuf[j+1] = cur;
|
|
last = cur;
|
|
}
|
|
if(j < avctx->width)
|
|
ybuf[j] = last;
|
|
ybuf += avctx->width;
|
|
}
|
|
|
|
src = s->y_buffer;
|
|
ybuf = s->pic.data[0];
|
|
for (j = 0; j < avctx->height; j++) {
|
|
for (i = 0; i < avctx->width; i++)
|
|
ybuf[i] = (src[i] << 2) | (src[i] >> 3);
|
|
src += avctx->width;
|
|
ybuf += s->pic.linesize[0];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int xan_decode_frame(AVCodecContext *avctx,
|
|
void *data, int *got_frame,
|
|
AVPacket *avpkt)
|
|
{
|
|
XanContext *s = avctx->priv_data;
|
|
int ftype;
|
|
int ret;
|
|
|
|
if ((ret = ff_reget_buffer(avctx, &s->pic))) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
|
|
return ret;
|
|
}
|
|
|
|
bytestream2_init(&s->gb, avpkt->data, avpkt->size);
|
|
ftype = bytestream2_get_le32(&s->gb);
|
|
switch (ftype) {
|
|
case 0:
|
|
ret = xan_decode_frame_type0(avctx);
|
|
break;
|
|
case 1:
|
|
ret = xan_decode_frame_type1(avctx);
|
|
break;
|
|
default:
|
|
av_log(avctx, AV_LOG_ERROR, "Unknown frame type %d\n", ftype);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (ret)
|
|
return ret;
|
|
|
|
if ((ret = av_frame_ref(data, &s->pic)) < 0)
|
|
return ret;
|
|
|
|
*got_frame = 1;
|
|
|
|
return avpkt->size;
|
|
}
|
|
|
|
static av_cold int xan_decode_end(AVCodecContext *avctx)
|
|
{
|
|
XanContext *s = avctx->priv_data;
|
|
|
|
av_frame_unref(&s->pic);
|
|
|
|
av_freep(&s->y_buffer);
|
|
av_freep(&s->scratch_buffer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
AVCodec ff_xan_wc4_decoder = {
|
|
.name = "xan_wc4",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_XAN_WC4,
|
|
.priv_data_size = sizeof(XanContext),
|
|
.init = xan_decode_init,
|
|
.close = xan_decode_end,
|
|
.decode = xan_decode_frame,
|
|
.capabilities = CODEC_CAP_DR1,
|
|
.long_name = NULL_IF_CONFIG_SMALL("Wing Commander IV / Xxan"),
|
|
};
|