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![Michael Niedermayer](/assets/img/avatar_default.png)
* 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>
168 lines
5.5 KiB
C
168 lines
5.5 KiB
C
/*
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* Apple MJPEG-B decoder
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* Copyright (c) 2002 Alex Beregszaszi
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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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/**
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* @file
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* Apple MJPEG-B decoder.
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*/
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#include "avcodec.h"
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#include "mjpeg.h"
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#include "mjpegdec.h"
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static uint32_t read_offs(AVCodecContext *avctx, GetBitContext *gb, uint32_t size, const char *err_msg){
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uint32_t offs= get_bits_long(gb, 32);
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if(offs >= size){
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av_log(avctx, AV_LOG_WARNING, err_msg, offs, size);
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return 0;
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}
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return offs;
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}
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static int mjpegb_decode_frame(AVCodecContext *avctx,
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void *data, int *got_frame,
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AVPacket *avpkt)
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{
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const uint8_t *buf = avpkt->data;
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int buf_size = avpkt->size;
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MJpegDecodeContext *s = avctx->priv_data;
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const uint8_t *buf_end, *buf_ptr;
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GetBitContext hgb; /* for the header */
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uint32_t dqt_offs, dht_offs, sof_offs, sos_offs, second_field_offs;
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uint32_t field_size, sod_offs;
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int ret;
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buf_ptr = buf;
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buf_end = buf + buf_size;
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s->got_picture = 0;
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read_header:
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/* reset on every SOI */
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s->restart_interval = 0;
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s->restart_count = 0;
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s->mjpb_skiptosod = 0;
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if (buf_end - buf_ptr >= 1 << 28)
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return AVERROR_INVALIDDATA;
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init_get_bits(&hgb, buf_ptr, /*buf_size*/(buf_end - buf_ptr)*8);
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skip_bits(&hgb, 32); /* reserved zeros */
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if (get_bits_long(&hgb, 32) != MKBETAG('m','j','p','g'))
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{
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av_log(avctx, AV_LOG_WARNING, "not mjpeg-b (bad fourcc)\n");
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return AVERROR_INVALIDDATA;
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}
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field_size = get_bits_long(&hgb, 32); /* field size */
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av_log(avctx, AV_LOG_DEBUG, "field size: 0x%x\n", field_size);
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skip_bits(&hgb, 32); /* padded field size */
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second_field_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "second_field_offs is %d and size is %d\n");
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av_log(avctx, AV_LOG_DEBUG, "second field offs: 0x%x\n", second_field_offs);
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dqt_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dqt is %d and size is %d\n");
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av_log(avctx, AV_LOG_DEBUG, "dqt offs: 0x%x\n", dqt_offs);
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if (dqt_offs)
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{
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init_get_bits(&s->gb, buf_ptr+dqt_offs, (buf_end - (buf_ptr+dqt_offs))*8);
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s->start_code = DQT;
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if (ff_mjpeg_decode_dqt(s) < 0 &&
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(avctx->err_recognition & AV_EF_EXPLODE))
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return AVERROR_INVALIDDATA;
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}
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dht_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dht is %d and size is %d\n");
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av_log(avctx, AV_LOG_DEBUG, "dht offs: 0x%x\n", dht_offs);
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if (dht_offs)
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{
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init_get_bits(&s->gb, buf_ptr+dht_offs, (buf_end - (buf_ptr+dht_offs))*8);
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s->start_code = DHT;
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ff_mjpeg_decode_dht(s);
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}
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sof_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sof is %d and size is %d\n");
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av_log(avctx, AV_LOG_DEBUG, "sof offs: 0x%x\n", sof_offs);
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if (sof_offs)
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{
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init_get_bits(&s->gb, buf_ptr+sof_offs, (buf_end - (buf_ptr+sof_offs))*8);
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s->start_code = SOF0;
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if (ff_mjpeg_decode_sof(s) < 0)
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return -1;
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}
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sos_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sos is %d and size is %d\n");
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av_log(avctx, AV_LOG_DEBUG, "sos offs: 0x%x\n", sos_offs);
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sod_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sof is %d and size is %d\n");
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av_log(avctx, AV_LOG_DEBUG, "sod offs: 0x%x\n", sod_offs);
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if (sos_offs)
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{
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init_get_bits(&s->gb, buf_ptr + sos_offs,
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8 * FFMIN(field_size, buf_end - buf_ptr - sos_offs));
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s->mjpb_skiptosod = (sod_offs - sos_offs - show_bits(&s->gb, 16));
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s->start_code = SOS;
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if (ff_mjpeg_decode_sos(s, NULL, NULL) < 0 &&
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(avctx->err_recognition & AV_EF_EXPLODE))
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return AVERROR_INVALIDDATA;
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}
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if (s->interlaced) {
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s->bottom_field ^= 1;
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/* if not bottom field, do not output image yet */
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if (s->bottom_field != s->interlace_polarity && second_field_offs)
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{
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buf_ptr = buf + second_field_offs;
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goto read_header;
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}
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}
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//XXX FIXME factorize, this looks very similar to the EOI code
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if(!s->got_picture) {
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av_log(avctx, AV_LOG_WARNING, "no picture\n");
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return buf_size;
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}
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if ((ret = av_frame_ref(data, s->picture_ptr)) < 0)
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return ret;
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*got_frame = 1;
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if (!s->lossless && avctx->debug & FF_DEBUG_QP) {
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av_log(avctx, AV_LOG_DEBUG, "QP: %d\n",
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FFMAX3(s->qscale[0], s->qscale[1], s->qscale[2]));
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}
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return buf_size;
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}
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AVCodec ff_mjpegb_decoder = {
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.name = "mjpegb",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_MJPEGB,
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.priv_data_size = sizeof(MJpegDecodeContext),
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.init = ff_mjpeg_decode_init,
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.close = ff_mjpeg_decode_end,
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.decode = mjpegb_decode_frame,
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.capabilities = CODEC_CAP_DR1,
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.max_lowres = 3,
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.long_name = NULL_IF_CONFIG_SMALL("Apple MJPEG-B"),
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};
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