2001-07-22 14:18:56 +00:00
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/*
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2003-03-06 11:32:04 +00:00
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* H.263 decoder
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2009-01-19 15:46:40 +00:00
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* Copyright (c) 2001 Fabrice Bellard
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2004-01-10 16:04:55 +00:00
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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2001-07-22 14:18:56 +00:00
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*
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2006-10-07 15:30:46 +00:00
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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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2002-05-25 22:45:33 +00:00
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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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2006-10-07 15:30:46 +00:00
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* version 2.1 of the License, or (at your option) any later version.
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2001-07-22 14:18:56 +00:00
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*
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2006-10-07 15:30:46 +00:00
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* FFmpeg is distributed in the hope that it will be useful,
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2001-07-22 14:18:56 +00:00
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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2002-05-25 22:45:33 +00:00
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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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2001-07-22 14:18:56 +00:00
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*
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2002-05-25 22:45:33 +00:00
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* You should have received a copy of the GNU Lesser General Public
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2006-10-07 15:30:46 +00:00
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* License along with FFmpeg; if not, write to the Free Software
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2006-01-12 22:43:26 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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2001-07-22 14:18:56 +00:00
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*/
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2005-12-17 18:14:38 +00:00
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2003-03-06 11:32:04 +00:00
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/**
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2010-04-20 14:45:34 +00:00
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* @file
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2003-03-06 11:32:04 +00:00
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* H.263 decoder.
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*/
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2005-12-17 18:14:38 +00:00
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2011-12-18 02:19:40 +00:00
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#define UNCHECKED_BITSTREAM_READER 1
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2010-09-08 15:07:14 +00:00
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#include "libavutil/cpu.h"
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2001-07-22 14:18:56 +00:00
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#include "avcodec.h"
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2013-03-06 17:31:14 +00:00
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#include "error_resilience.h"
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2013-10-22 17:37:44 +00:00
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#include "flv.h"
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2010-01-09 14:59:06 +00:00
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#include "h263.h"
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2007-05-08 08:52:38 +00:00
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#include "h263_parser.h"
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2013-10-22 17:37:44 +00:00
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#include "internal.h"
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#include "mpeg4video.h"
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2007-05-09 23:13:43 +00:00
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#include "mpeg4video_parser.h"
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2013-10-22 17:37:44 +00:00
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#include "mpegvideo.h"
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2007-05-10 13:11:36 +00:00
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#include "msmpeg4.h"
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2013-08-17 13:31:14 +00:00
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#include "vdpau_internal.h"
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2011-03-22 21:36:57 +00:00
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#include "thread.h"
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2001-07-22 14:18:56 +00:00
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2008-03-21 03:11:20 +00:00
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av_cold int ff_h263_decode_init(AVCodecContext *avctx)
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2001-07-22 14:18:56 +00:00
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{
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MpegEncContext *s = avctx->priv_data;
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2012-09-10 16:08:09 +00:00
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int ret;
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2001-08-12 00:52:37 +00:00
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2013-10-22 17:37:44 +00:00
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s->avctx = avctx;
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s->out_format = FMT_H263;
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s->width = avctx->coded_width;
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s->height = avctx->coded_height;
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s->workaround_bugs = avctx->workaround_bugs;
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2001-07-22 14:18:56 +00:00
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2002-10-13 13:16:04 +00:00
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// set defaults
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2012-02-15 12:10:33 +00:00
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ff_MPV_decode_defaults(s);
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2013-10-22 17:37:44 +00:00
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s->quant_precision = 5;
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s->decode_mb = ff_h263_decode_mb;
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s->low_delay = 1;
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2012-08-24 15:45:57 +00:00
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if (avctx->codec->id == AV_CODEC_ID_MSS2)
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2012-10-06 10:10:34 +00:00
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avctx->pix_fmt = AV_PIX_FMT_YUV420P;
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2012-08-24 15:45:57 +00:00
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else
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2013-04-18 17:11:04 +00:00
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avctx->pix_fmt = avctx->get_format(avctx, avctx->codec->pix_fmts);
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2013-10-22 17:37:44 +00:00
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s->unrestricted_mv = 1;
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2002-10-13 13:16:04 +00:00
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2001-07-22 14:18:56 +00:00
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/* select sub codec */
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2013-10-22 17:37:44 +00:00
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switch (avctx->codec->id) {
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_H263:
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2012-08-07 20:45:46 +00:00
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case AV_CODEC_ID_H263P:
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2013-10-22 17:37:44 +00:00
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s->unrestricted_mv = 0;
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2009-05-11 04:34:23 +00:00
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avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
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2001-07-22 14:18:56 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_MPEG4:
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2001-07-22 14:18:56 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_MSMPEG4V1:
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2013-10-22 17:37:44 +00:00
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s->h263_pred = 1;
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s->msmpeg4_version = 1;
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2002-04-05 04:09:04 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_MSMPEG4V2:
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2013-10-22 17:37:44 +00:00
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s->h263_pred = 1;
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s->msmpeg4_version = 2;
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2002-04-05 04:09:04 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_MSMPEG4V3:
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2013-10-22 17:37:44 +00:00
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s->h263_pred = 1;
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s->msmpeg4_version = 3;
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2001-07-22 14:18:56 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_WMV1:
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2013-10-22 17:37:44 +00:00
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s->h263_pred = 1;
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s->msmpeg4_version = 4;
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2002-04-06 22:29:37 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_WMV2:
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2013-10-22 17:37:44 +00:00
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s->h263_pred = 1;
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s->msmpeg4_version = 5;
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2002-06-18 00:46:02 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_VC1:
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case AV_CODEC_ID_WMV3:
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case AV_CODEC_ID_VC1IMAGE:
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case AV_CODEC_ID_WMV3IMAGE:
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2012-08-24 15:45:57 +00:00
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case AV_CODEC_ID_MSS2:
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2013-10-22 17:37:44 +00:00
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s->h263_pred = 1;
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s->msmpeg4_version = 6;
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2009-05-11 04:34:23 +00:00
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avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
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2005-01-30 16:34:57 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_H263I:
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2001-07-22 14:18:56 +00:00
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break;
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2012-08-05 09:11:04 +00:00
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case AV_CODEC_ID_FLV1:
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2003-07-09 23:10:59 +00:00
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s->h263_flv = 1;
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break;
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2001-07-22 14:18:56 +00:00
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default:
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2013-10-26 17:31:46 +00:00
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av_log(avctx, AV_LOG_ERROR, "Unsupported codec %d\n",
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avctx->codec->id);
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return AVERROR(ENOSYS);
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2001-07-22 14:18:56 +00:00
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}
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2013-10-22 17:37:44 +00:00
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s->codec_id = avctx->codec->id;
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2013-11-09 16:07:34 +00:00
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avctx->hwaccel = ff_find_hwaccel(avctx);
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2002-07-14 18:37:35 +00:00
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2013-08-24 16:44:24 +00:00
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if (avctx->stream_codec_tag == AV_RL32("l263") && avctx->extradata_size == 56 && avctx->extradata[0] == 1)
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s->ehc_mode = 1;
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2001-07-22 14:18:56 +00:00
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/* for h263, we allocate the images after having read the header */
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2013-10-22 17:37:44 +00:00
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if (avctx->codec->id != AV_CODEC_ID_H263 &&
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2013-10-23 17:26:59 +00:00
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avctx->codec->id != AV_CODEC_ID_H263P &&
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2013-10-22 17:37:44 +00:00
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avctx->codec->id != AV_CODEC_ID_MPEG4)
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2012-09-10 16:08:09 +00:00
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if ((ret = ff_MPV_common_init(s)) < 0)
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return ret;
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2001-07-22 14:18:56 +00:00
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2013-11-05 07:11:47 +00:00
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ff_h263dsp_init(&s->h263dsp);
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2013-10-22 17:37:44 +00:00
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ff_h263_decode_init_vlc();
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2005-12-17 18:14:38 +00:00
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2001-07-22 14:18:56 +00:00
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return 0;
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}
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2008-03-21 03:11:20 +00:00
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av_cold int ff_h263_decode_end(AVCodecContext *avctx)
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2001-07-22 14:18:56 +00:00
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{
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MpegEncContext *s = avctx->priv_data;
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2012-02-15 12:10:33 +00:00
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ff_MPV_common_end(s);
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2001-07-22 14:18:56 +00:00
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return 0;
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}
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2002-09-12 11:10:33 +00:00
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/**
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2011-12-07 12:03:53 +00:00
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* Return the number of bytes consumed for building the current frame.
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2002-09-12 11:10:33 +00:00
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*/
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2013-10-22 17:37:44 +00:00
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static int get_consumed_bytes(MpegEncContext *s, int buf_size)
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{
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int pos = (get_bits_count(&s->gb) + 7) >> 3;
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2005-12-17 18:14:38 +00:00
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2013-10-22 17:37:44 +00:00
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if (s->divx_packed || s->avctx->hwaccel) {
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/* We would have to scan through the whole buf to handle the weird
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* reordering ... */
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2005-12-17 18:14:38 +00:00
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return buf_size;
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2013-10-22 17:37:44 +00:00
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} else if (s->flags & CODEC_FLAG_TRUNCATED) {
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2002-11-08 18:35:39 +00:00
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pos -= s->parse_context.last_index;
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2013-10-22 17:37:44 +00:00
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// padding is not really read so this might be -1
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if (pos < 0)
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pos = 0;
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2002-11-08 18:35:39 +00:00
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return pos;
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2013-10-22 17:37:44 +00:00
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} else {
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// avoid infinite loops (maybe not needed...)
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if (pos == 0)
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pos = 1;
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// oops ;)
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if (pos + 10 > buf_size)
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pos = buf_size;
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2002-09-12 11:10:33 +00:00
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return pos;
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}
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}
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2013-10-22 17:37:44 +00:00
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static int decode_slice(MpegEncContext *s)
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{
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const int part_mask = s->partitioned_frame
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? (ER_AC_END | ER_AC_ERROR) : 0x7F;
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2013-10-23 17:26:59 +00:00
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const int mb_size = 16 >> s->avctx->lowres;
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2012-09-10 16:08:09 +00:00
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int ret;
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2013-10-22 17:37:44 +00:00
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s->last_resync_gb = s->gb;
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s->first_slice_line = 1;
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s->resync_mb_x = s->mb_x;
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s->resync_mb_y = s->mb_y;
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2002-10-13 13:16:04 +00:00
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2003-12-03 16:47:17 +00:00
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ff_set_qscale(s, s->qscale);
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2005-12-17 18:14:38 +00:00
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2009-02-27 08:27:50 +00:00
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if (s->avctx->hwaccel) {
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2013-10-22 17:37:44 +00:00
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const uint8_t *start = s->gb.buffer + get_bits_count(&s->gb) / 8;
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2013-08-21 03:04:46 +00:00
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ret = s->avctx->hwaccel->decode_slice(s->avctx, start, s->gb.buffer_end - start);
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// ensure we exit decode loop
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s->mb_y = s->mb_height;
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return ret;
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2009-02-27 08:27:50 +00:00
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}
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2009-02-23 13:44:51 +00:00
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2013-10-22 17:37:44 +00:00
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if (s->partitioned_frame) {
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const int qscale = s->qscale;
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2002-10-13 13:16:04 +00:00
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2013-10-22 17:37:44 +00:00
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if (CONFIG_MPEG4_DECODER && s->codec_id == AV_CODEC_ID_MPEG4)
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2013-11-26 10:23:16 +00:00
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if ((ret = ff_mpeg4_decode_partitions(s->avctx->priv_data)) < 0)
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2012-09-10 16:08:09 +00:00
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return ret;
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2005-12-17 18:14:38 +00:00
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2003-08-28 13:30:03 +00:00
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/* restore variables which were modified */
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2013-10-22 17:37:44 +00:00
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s->first_slice_line = 1;
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s->mb_x = s->resync_mb_x;
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s->mb_y = s->resync_mb_y;
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2003-12-03 16:47:17 +00:00
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ff_set_qscale(s, qscale);
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2002-10-13 13:16:04 +00:00
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}
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2013-10-22 17:37:44 +00:00
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for (; s->mb_y < s->mb_height; s->mb_y++) {
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2002-10-13 13:16:04 +00:00
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/* per-row end of slice checks */
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2013-10-22 17:37:44 +00:00
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if (s->msmpeg4_version) {
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if (s->resync_mb_y + s->slice_height == s->mb_y) {
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ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y,
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s->mb_x - 1, s->mb_y, ER_MB_END);
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2003-03-20 01:00:57 +00:00
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2002-10-13 13:16:04 +00:00
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return 0;
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}
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}
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2005-12-17 18:14:38 +00:00
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2013-10-22 17:37:44 +00:00
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if (s->msmpeg4_version == 1) {
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s->last_dc[0] =
|
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s->last_dc[1] =
|
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s->last_dc[2] = 128;
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2002-10-13 13:16:04 +00:00
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}
|
2005-12-17 18:14:38 +00:00
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2002-10-13 13:16:04 +00:00
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ff_init_block_index(s);
|
2013-10-22 17:37:44 +00:00
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for (; s->mb_x < s->mb_width; s->mb_x++) {
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2002-10-13 13:16:04 +00:00
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int ret;
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ff_update_block_index(s);
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2013-10-22 17:37:44 +00:00
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if (s->resync_mb_x == s->mb_x && s->resync_mb_y + 1 == s->mb_y)
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s->first_slice_line = 0;
|
2002-10-13 13:16:04 +00:00
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/* DCT & quantize */
|
2005-12-17 18:14:38 +00:00
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2013-10-22 17:37:44 +00:00
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s->mv_dir = MV_DIR_FORWARD;
|
2002-10-13 13:16:04 +00:00
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s->mv_type = MV_TYPE_16X16;
|
2012-08-21 10:41:40 +00:00
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|
av_dlog(s, "%d %d %06X\n",
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ret, get_bits_count(&s->gb), show_bits(&s->gb, 24));
|
2013-10-22 17:37:44 +00:00
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ret = s->decode_mb(s, s->block);
|
2002-10-13 13:16:04 +00:00
|
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2013-10-22 17:37:44 +00:00
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if (s->pict_type != AV_PICTURE_TYPE_B)
|
2003-07-29 02:09:12 +00:00
|
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|
ff_h263_update_motion_val(s);
|
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|
2013-10-22 17:37:44 +00:00
|
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|
if (ret < 0) {
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|
|
const int xy = s->mb_x + s->mb_y * s->mb_stride;
|
|
|
|
if (ret == SLICE_END) {
|
2012-02-15 12:10:33 +00:00
|
|
|
ff_MPV_decode_mb(s, s->block);
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->loop_filter)
|
2003-12-01 15:23:14 +00:00
|
|
|
ff_h263_loop_filter(s);
|
2003-07-03 22:35:39 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y,
|
|
|
|
s->mb_x, s->mb_y, ER_MB_END & part_mask);
|
2002-10-14 19:53:04 +00:00
|
|
|
|
|
|
|
s->padding_bug_score--;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (++s->mb_x >= s->mb_width) {
|
|
|
|
s->mb_x = 0;
|
|
|
|
ff_mpeg_draw_horiz_band(s, s->mb_y * mb_size, mb_size);
|
2012-02-15 12:10:33 +00:00
|
|
|
ff_MPV_report_decode_progress(s);
|
2002-10-13 13:16:04 +00:00
|
|
|
s->mb_y++;
|
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
return 0;
|
2013-10-22 17:37:44 +00:00
|
|
|
} else if (ret == SLICE_NOEND) {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"Slice mismatch at MB: %d\n", xy);
|
|
|
|
ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y,
|
|
|
|
s->mb_x + 1, s->mb_y,
|
|
|
|
ER_MB_END & part_mask);
|
2012-09-10 16:08:09 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2002-10-13 13:16:04 +00:00
|
|
|
}
|
2003-11-03 13:26:22 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "Error at MB: %d\n", xy);
|
2013-10-22 17:37:44 +00:00
|
|
|
ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y,
|
|
|
|
s->mb_x, s->mb_y, ER_MB_ERROR & part_mask);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2012-09-10 16:08:09 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2002-10-13 13:16:04 +00:00
|
|
|
}
|
2003-07-03 22:35:39 +00:00
|
|
|
|
2012-02-15 12:10:33 +00:00
|
|
|
ff_MPV_decode_mb(s, s->block);
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->loop_filter)
|
2003-12-01 15:23:14 +00:00
|
|
|
ff_h263_loop_filter(s);
|
2002-10-13 13:16:04 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
ff_mpeg_draw_horiz_band(s, s->mb_y * mb_size, mb_size);
|
2012-02-15 12:10:33 +00:00
|
|
|
ff_MPV_report_decode_progress(s);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
s->mb_x = 0;
|
2002-10-13 13:16:04 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-23 17:26:59 +00:00
|
|
|
av_assert1(s->mb_x == 0 && s->mb_y == s->mb_height);
|
2002-10-13 13:16:04 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->codec_id == AV_CODEC_ID_MPEG4 &&
|
|
|
|
(s->workaround_bugs & FF_BUG_AUTODETECT) &&
|
|
|
|
get_bits_left(&s->gb) >= 48 &&
|
|
|
|
show_bits(&s->gb, 24) == 0x4010 &&
|
|
|
|
!s->data_partitioning)
|
|
|
|
s->padding_bug_score += 32;
|
2010-12-04 05:44:18 +00:00
|
|
|
|
2002-10-14 19:53:04 +00:00
|
|
|
/* try to detect the padding bug */
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->codec_id == AV_CODEC_ID_MPEG4 &&
|
|
|
|
(s->workaround_bugs & FF_BUG_AUTODETECT) &&
|
|
|
|
get_bits_left(&s->gb) >= 0 &&
|
2013-10-23 17:26:59 +00:00
|
|
|
get_bits_left(&s->gb) < 137 &&
|
2013-10-22 17:37:44 +00:00
|
|
|
!s->data_partitioning) {
|
|
|
|
const int bits_count = get_bits_count(&s->gb);
|
|
|
|
const int bits_left = s->gb.size_in_bits - bits_count;
|
|
|
|
|
|
|
|
if (bits_left == 0) {
|
|
|
|
s->padding_bug_score += 16;
|
|
|
|
} else if (bits_left != 1) {
|
|
|
|
int v = show_bits(&s->gb, 8);
|
|
|
|
v |= 0x7F >> (7 - (bits_count & 7));
|
|
|
|
|
|
|
|
if (v == 0x7F && bits_left <= 8)
|
2002-10-14 19:53:04 +00:00
|
|
|
s->padding_bug_score--;
|
2013-10-22 17:37:44 +00:00
|
|
|
else if (v == 0x7F && ((get_bits_count(&s->gb) + 8) & 8) &&
|
|
|
|
bits_left <= 16)
|
|
|
|
s->padding_bug_score += 4;
|
2002-10-14 19:53:04 +00:00
|
|
|
else
|
2005-12-17 18:14:38 +00:00
|
|
|
s->padding_bug_score++;
|
|
|
|
}
|
2002-10-14 19:53:04 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->workaround_bugs & FF_BUG_AUTODETECT) {
|
2013-11-26 10:52:54 +00:00
|
|
|
if (s->padding_bug_score > -2 && !s->data_partitioning)
|
2013-10-22 17:37:44 +00:00
|
|
|
s->workaround_bugs |= FF_BUG_NO_PADDING;
|
2004-11-13 01:05:12 +00:00
|
|
|
else
|
|
|
|
s->workaround_bugs &= ~FF_BUG_NO_PADDING;
|
|
|
|
}
|
2002-10-14 19:53:04 +00:00
|
|
|
|
2005-06-17 15:02:53 +00:00
|
|
|
// handle formats which don't have unique end markers
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->msmpeg4_version || (s->workaround_bugs & FF_BUG_NO_PADDING)) { // FIXME perhaps solve this more cleanly
|
|
|
|
int left = get_bits_left(&s->gb);
|
|
|
|
int max_extra = 7;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2002-10-13 13:16:04 +00:00
|
|
|
/* no markers in M$ crap */
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->msmpeg4_version && s->pict_type == AV_PICTURE_TYPE_I)
|
|
|
|
max_extra += 17;
|
|
|
|
|
|
|
|
/* buggy padding but the frame should still end approximately at
|
|
|
|
* the bitstream end */
|
|
|
|
if ((s->workaround_bugs & FF_BUG_NO_PADDING) &&
|
2013-10-23 17:26:59 +00:00
|
|
|
(s->err_recognition & (AV_EF_BUFFER|AV_EF_AGGRESSIVE)))
|
2013-10-22 17:37:44 +00:00
|
|
|
max_extra += 48;
|
|
|
|
else if ((s->workaround_bugs & FF_BUG_NO_PADDING))
|
|
|
|
max_extra += 256 * 256 * 256 * 64;
|
|
|
|
|
|
|
|
if (left > max_extra)
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"discarding %d junk bits at end, next would be %X\n",
|
|
|
|
left, show_bits(&s->gb, 24));
|
|
|
|
else if (left < 0)
|
2003-11-03 13:26:22 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "overreading %d bits\n", -left);
|
2013-10-22 17:37:44 +00:00
|
|
|
else
|
|
|
|
ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y,
|
|
|
|
s->mb_x - 1, s->mb_y, ER_MB_END);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2002-10-13 13:16:04 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2002-10-14 19:53:04 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"slice end not reached but screenspace end (%d left %06X, score= %d)\n",
|
|
|
|
get_bits_left(&s->gb), show_bits(&s->gb, 24), s->padding_bug_score);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y,
|
|
|
|
ER_MB_END & part_mask);
|
2003-03-20 01:00:57 +00:00
|
|
|
|
2012-09-10 16:08:09 +00:00
|
|
|
return AVERROR_INVALIDDATA;
|
2002-10-13 13:16:04 +00:00
|
|
|
}
|
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
int ff_h263_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
|
|
|
|
AVPacket *avpkt)
|
2001-07-22 14:18:56 +00:00
|
|
|
{
|
2009-04-07 15:59:50 +00:00
|
|
|
const uint8_t *buf = avpkt->data;
|
2013-10-22 17:37:44 +00:00
|
|
|
int buf_size = avpkt->size;
|
|
|
|
MpegEncContext *s = avctx->priv_data;
|
2003-09-09 22:50:44 +00:00
|
|
|
int ret;
|
2013-10-28 16:05:59 +00:00
|
|
|
int slice_ret = 0;
|
2005-12-17 18:14:38 +00:00
|
|
|
AVFrame *pict = data;
|
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
s->flags = avctx->flags;
|
|
|
|
s->flags2 = avctx->flags2;
|
2002-06-02 12:16:28 +00:00
|
|
|
|
2003-07-23 09:58:02 +00:00
|
|
|
/* no supplementary picture */
|
2001-07-22 14:18:56 +00:00
|
|
|
if (buf_size == 0) {
|
2003-07-23 09:58:02 +00:00
|
|
|
/* special case for last picture */
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->low_delay == 0 && s->next_picture_ptr) {
|
2012-11-21 20:34:46 +00:00
|
|
|
if ((ret = av_frame_ref(pict, &s->next_picture_ptr->f)) < 0)
|
|
|
|
return ret;
|
2013-10-22 17:37:44 +00:00
|
|
|
s->next_picture_ptr = NULL;
|
2003-07-23 09:58:02 +00:00
|
|
|
|
2012-11-13 18:35:22 +00:00
|
|
|
*got_frame = 1;
|
2003-07-23 09:58:02 +00:00
|
|
|
}
|
|
|
|
|
2001-07-22 14:18:56 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2003-01-21 21:30:48 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->flags & CODEC_FLAG_TRUNCATED) {
|
2002-11-08 18:35:39 +00:00
|
|
|
int next;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (CONFIG_MPEG4_DECODER && s->codec_id == AV_CODEC_ID_MPEG4) {
|
|
|
|
next = ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);
|
|
|
|
} else if (CONFIG_H263_DECODER && s->codec_id == AV_CODEC_ID_H263) {
|
|
|
|
next = ff_h263_find_frame_end(&s->parse_context, buf, buf_size);
|
2013-10-23 17:26:59 +00:00
|
|
|
} else if (CONFIG_H263P_DECODER && s->codec_id == AV_CODEC_ID_H263P) {
|
|
|
|
next = ff_h263_find_frame_end(&s->parse_context, buf, buf_size);
|
2013-10-22 17:37:44 +00:00
|
|
|
} else {
|
|
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
|
|
"this codec does not support truncated bitstreams\n");
|
2013-10-26 17:31:46 +00:00
|
|
|
return AVERROR(ENOSYS);
|
2002-11-08 18:35:39 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (ff_combine_frame(&s->parse_context, next, (const uint8_t **)&buf,
|
|
|
|
&buf_size) < 0)
|
2002-11-08 18:35:39 +00:00
|
|
|
return buf_size;
|
|
|
|
}
|
2001-07-22 14:18:56 +00:00
|
|
|
|
2002-10-23 08:14:12 +00:00
|
|
|
retry:
|
2013-10-23 17:26:59 +00:00
|
|
|
if (s->divx_packed && s->bitstream_buffer_size) {
|
2011-03-03 02:37:44 +00:00
|
|
|
int i;
|
2013-10-23 17:26:59 +00:00
|
|
|
for(i=0; i < buf_size-3; i++) {
|
|
|
|
if (buf[i]==0 && buf[i+1]==0 && buf[i+2]==1) {
|
|
|
|
if (buf[i+3]==0xB0) {
|
2011-03-03 13:06:58 +00:00
|
|
|
av_log(s->avctx, AV_LOG_WARNING, "Discarding excessive bitstream in packed xvid\n");
|
2013-10-23 17:26:59 +00:00
|
|
|
s->bitstream_buffer_size = 0;
|
2011-03-03 13:06:58 +00:00
|
|
|
}
|
2011-03-03 02:37:44 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->bitstream_buffer_size && (s->divx_packed || buf_size < 20)) // divx 5.01+/xvid frame reorder
|
2013-10-26 17:02:34 +00:00
|
|
|
ret = init_get_bits8(&s->gb, s->bitstream_buffer,
|
|
|
|
s->bitstream_buffer_size);
|
2013-10-22 17:37:44 +00:00
|
|
|
else
|
2013-10-21 21:32:56 +00:00
|
|
|
ret = init_get_bits8(&s->gb, buf, buf_size);
|
2013-10-23 17:26:59 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
s->bitstream_buffer_size = 0;
|
2013-10-21 21:32:56 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2001-07-22 14:18:56 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (!s->context_initialized)
|
2013-10-26 17:31:46 +00:00
|
|
|
// we need the idct permutaton for reading a custom matrix
|
|
|
|
if ((ret = ff_MPV_common_init(s)) < 0)
|
2012-09-10 16:08:09 +00:00
|
|
|
return ret;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2007-06-12 09:29:25 +00:00
|
|
|
/* We need to set current_picture_ptr before reading the header,
|
|
|
|
* otherwise we cannot store anyting in there */
|
2011-07-06 18:08:30 +00:00
|
|
|
if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {
|
2013-10-22 17:37:44 +00:00
|
|
|
int i = ff_find_unused_picture(s, 0);
|
2011-12-08 11:56:29 +00:00
|
|
|
if (i < 0)
|
|
|
|
return i;
|
2013-10-22 17:37:44 +00:00
|
|
|
s->current_picture_ptr = &s->picture[i];
|
2003-10-30 16:58:49 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2001-07-22 14:18:56 +00:00
|
|
|
/* let's go :-) */
|
2013-10-22 17:37:44 +00:00
|
|
|
if (CONFIG_WMV2_DECODER && s->msmpeg4_version == 5) {
|
|
|
|
ret = ff_wmv2_decode_picture_header(s);
|
2009-01-14 17:19:17 +00:00
|
|
|
} else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {
|
2012-02-15 11:05:06 +00:00
|
|
|
ret = ff_msmpeg4_decode_picture_header(s);
|
2013-11-26 10:07:22 +00:00
|
|
|
} else if (CONFIG_MPEG4_DECODER && avctx->codec_id == AV_CODEC_ID_MPEG4) {
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->avctx->extradata_size && s->picture_number == 0) {
|
2002-10-14 12:21:54 +00:00
|
|
|
GetBitContext gb;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-21 21:32:56 +00:00
|
|
|
if (init_get_bits8(&gb, s->avctx->extradata, s->avctx->extradata_size) >= 0 )
|
2013-11-29 21:35:52 +00:00
|
|
|
ff_mpeg4_decode_picture_header(avctx->priv_data, &gb);
|
2002-10-14 12:21:54 +00:00
|
|
|
}
|
2013-11-26 10:23:16 +00:00
|
|
|
ret = ff_mpeg4_decode_picture_header(avctx->priv_data, &s->gb);
|
2012-08-05 09:11:04 +00:00
|
|
|
} else if (CONFIG_H263I_DECODER && s->codec_id == AV_CODEC_ID_H263I) {
|
2010-01-07 06:25:41 +00:00
|
|
|
ret = ff_intel_h263_decode_picture_header(s);
|
2010-01-07 05:36:45 +00:00
|
|
|
} else if (CONFIG_FLV_DECODER && s->h263_flv) {
|
|
|
|
ret = ff_flv_decode_picture_header(s);
|
2001-07-22 14:18:56 +00:00
|
|
|
} else {
|
2012-02-09 09:28:46 +00:00
|
|
|
ret = ff_h263_decode_picture_header(s);
|
2002-03-19 03:51:36 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-23 17:26:59 +00:00
|
|
|
if (ret < 0 || ret == FRAME_SKIPPED) {
|
2012-04-18 19:03:03 +00:00
|
|
|
if ( s->width != avctx->coded_width
|
|
|
|
|| s->height != avctx->coded_height) {
|
|
|
|
av_log(s->avctx, AV_LOG_WARNING, "Reverting picture dimensions change due to header decoding failure\n");
|
|
|
|
s->width = avctx->coded_width;
|
|
|
|
s->height= avctx->coded_height;
|
|
|
|
}
|
|
|
|
}
|
2013-10-22 17:37:44 +00:00
|
|
|
if (ret == FRAME_SKIPPED)
|
|
|
|
return get_consumed_bytes(s, buf_size);
|
2003-08-01 11:00:03 +00:00
|
|
|
|
|
|
|
/* skip if the header was thrashed */
|
2013-10-22 17:37:44 +00:00
|
|
|
if (ret < 0) {
|
2003-11-03 13:26:22 +00:00
|
|
|
av_log(s->avctx, AV_LOG_ERROR, "header damaged\n");
|
2012-09-10 16:08:09 +00:00
|
|
|
return ret;
|
2003-08-01 11:00:03 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
avctx->has_b_frames = !s->low_delay;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-11-30 01:35:13 +00:00
|
|
|
if (CONFIG_MPEG4_DECODER && avctx->codec_id == AV_CODEC_ID_MPEG4) {
|
|
|
|
if (ff_mpeg4_workaround_bugs(avctx) == 1)
|
|
|
|
goto retry;
|
|
|
|
}
|
2004-06-26 09:52:16 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
/* After H263 & mpeg4 header decode we have the height, width,
|
|
|
|
* and other parameters. So then we could init the picture.
|
|
|
|
* FIXME: By the way H263 decoder is evolving it should have
|
|
|
|
* an H263EncContext */
|
2012-09-18 13:48:14 +00:00
|
|
|
if (s->width != avctx->coded_width ||
|
|
|
|
s->height != avctx->coded_height ||
|
|
|
|
s->context_reinit) {
|
|
|
|
/* H.263 could change picture size any time */
|
|
|
|
s->context_reinit = 0;
|
|
|
|
|
2013-10-27 09:02:26 +00:00
|
|
|
ret = ff_set_dimensions(avctx, s->width, s->height);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2012-09-18 13:48:14 +00:00
|
|
|
|
|
|
|
if ((ret = ff_MPV_common_frame_size_change(s)))
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->codec_id == AV_CODEC_ID_H263 ||
|
|
|
|
s->codec_id == AV_CODEC_ID_H263P ||
|
|
|
|
s->codec_id == AV_CODEC_ID_H263I)
|
2002-10-19 23:48:08 +00:00
|
|
|
s->gob_index = ff_h263_get_gob_height(s);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2011-04-02 09:56:21 +00:00
|
|
|
// for skipping the frame
|
2011-07-06 18:08:30 +00:00
|
|
|
s->current_picture.f.pict_type = s->pict_type;
|
|
|
|
s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
|
2002-11-10 10:54:07 +00:00
|
|
|
|
2005-06-17 15:02:53 +00:00
|
|
|
/* skip B-frames if we don't have reference frames */
|
2012-12-07 09:25:27 +00:00
|
|
|
if (s->last_picture_ptr == NULL &&
|
|
|
|
(s->pict_type == AV_PICTURE_TYPE_B || s->droppable))
|
|
|
|
return get_consumed_bytes(s, buf_size);
|
2013-10-22 17:37:44 +00:00
|
|
|
if ((avctx->skip_frame >= AVDISCARD_NONREF &&
|
|
|
|
s->pict_type == AV_PICTURE_TYPE_B) ||
|
|
|
|
(avctx->skip_frame >= AVDISCARD_NONKEY &&
|
|
|
|
s->pict_type != AV_PICTURE_TYPE_I) ||
|
|
|
|
avctx->skip_frame >= AVDISCARD_ALL)
|
2005-07-14 21:39:36 +00:00
|
|
|
return get_consumed_bytes(s, buf_size);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->next_p_frame_damaged) {
|
|
|
|
if (s->pict_type == AV_PICTURE_TYPE_B)
|
2002-09-12 11:10:33 +00:00
|
|
|
return get_consumed_bytes(s, buf_size);
|
2002-06-02 12:16:28 +00:00
|
|
|
else
|
2013-10-22 17:37:44 +00:00
|
|
|
s->next_p_frame_damaged = 0;
|
2002-06-02 12:16:28 +00:00
|
|
|
}
|
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if ((!s->no_rounding) || s->pict_type == AV_PICTURE_TYPE_B) {
|
|
|
|
s->me.qpel_put = s->dsp.put_qpel_pixels_tab;
|
|
|
|
s->me.qpel_avg = s->dsp.avg_qpel_pixels_tab;
|
|
|
|
} else {
|
|
|
|
s->me.qpel_put = s->dsp.put_no_rnd_qpel_pixels_tab;
|
|
|
|
s->me.qpel_avg = s->dsp.avg_qpel_pixels_tab;
|
2006-10-01 21:25:17 +00:00
|
|
|
}
|
|
|
|
|
2012-09-10 16:08:09 +00:00
|
|
|
if ((ret = ff_MPV_frame_start(s, avctx)) < 0)
|
|
|
|
return ret;
|
2001-07-22 14:18:56 +00:00
|
|
|
|
2013-03-13 22:36:51 +00:00
|
|
|
if (!s->divx_packed && !avctx->hwaccel)
|
|
|
|
ff_thread_finish_setup(avctx);
|
2011-03-22 21:36:57 +00:00
|
|
|
|
2013-08-17 13:31:14 +00:00
|
|
|
if (CONFIG_MPEG4_VDPAU_DECODER && (s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) {
|
|
|
|
ff_vdpau_mpeg4_decode_picture(s, s->gb.buffer, s->gb.buffer_end - s->gb.buffer);
|
|
|
|
goto frame_end;
|
|
|
|
}
|
|
|
|
|
2013-10-26 17:31:46 +00:00
|
|
|
if (avctx->hwaccel) {
|
|
|
|
ret = avctx->hwaccel->start_frame(avctx, s->gb.buffer,
|
|
|
|
s->gb.buffer_end - s->gb.buffer);
|
|
|
|
if (ret < 0 )
|
2012-09-10 16:08:09 +00:00
|
|
|
return ret;
|
2013-10-26 17:31:46 +00:00
|
|
|
}
|
2009-02-27 08:27:50 +00:00
|
|
|
|
2013-02-02 19:42:07 +00:00
|
|
|
ff_mpeg_er_frame_start(s);
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
/* the second part of the wmv2 header contains the MB skip bits which
|
|
|
|
* are stored in current_picture->mb_type which is not available before
|
|
|
|
* ff_MPV_frame_start() */
|
|
|
|
if (CONFIG_WMV2_DECODER && s->msmpeg4_version == 5) {
|
2007-11-09 21:37:48 +00:00
|
|
|
ret = ff_wmv2_decode_secondary_picture_header(s);
|
2013-10-22 17:37:44 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
if (ret == 1)
|
2013-10-23 17:26:59 +00:00
|
|
|
goto frame_end;
|
2003-04-12 15:00:32 +00:00
|
|
|
}
|
|
|
|
|
2001-07-22 14:18:56 +00:00
|
|
|
/* decode each macroblock */
|
2013-10-22 17:37:44 +00:00
|
|
|
s->mb_x = 0;
|
|
|
|
s->mb_y = 0;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-28 16:05:59 +00:00
|
|
|
slice_ret = decode_slice(s);
|
2013-10-22 17:37:44 +00:00
|
|
|
while (s->mb_y < s->mb_height) {
|
|
|
|
if (s->msmpeg4_version) {
|
|
|
|
if (s->slice_height == 0 || s->mb_x != 0 ||
|
|
|
|
(s->mb_y % s->slice_height) != 0 || get_bits_left(&s->gb) < 0)
|
2002-10-13 13:16:04 +00:00
|
|
|
break;
|
2013-10-22 17:37:44 +00:00
|
|
|
} else {
|
|
|
|
int prev_x = s->mb_x, prev_y = s->mb_y;
|
|
|
|
if (ff_h263_resync(s) < 0)
|
2002-10-13 13:16:04 +00:00
|
|
|
break;
|
2011-06-02 17:15:58 +00:00
|
|
|
if (prev_y * s->mb_width + prev_x < s->mb_y * s->mb_width + s->mb_x)
|
2013-02-02 19:42:07 +00:00
|
|
|
s->er.error_occurred = 1;
|
2002-06-02 12:16:28 +00:00
|
|
|
}
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->msmpeg4_version < 4 && s->h263_pred)
|
2002-10-13 13:16:04 +00:00
|
|
|
ff_mpeg4_clean_buffers(s);
|
2002-03-28 13:41:04 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (decode_slice(s) < 0)
|
2013-10-28 16:05:59 +00:00
|
|
|
slice_ret = AVERROR_INVALIDDATA;
|
2001-07-22 14:18:56 +00:00
|
|
|
}
|
2002-10-19 01:31:26 +00:00
|
|
|
|
2013-10-22 17:37:44 +00:00
|
|
|
if (s->msmpeg4_version && s->msmpeg4_version < 4 &&
|
|
|
|
s->pict_type == AV_PICTURE_TYPE_I)
|
|
|
|
if (!CONFIG_MSMPEG4_DECODER ||
|
|
|
|
ff_msmpeg4_decode_ext_header(s, buf_size) < 0)
|
2013-02-02 19:42:07 +00:00
|
|
|
s->er.error_status_table[s->mb_num - 1] = ER_MB_ERROR;
|
2005-12-17 18:14:38 +00:00
|
|
|
|
2013-10-23 17:26:59 +00:00
|
|
|
av_assert1(s->bitstream_buffer_size == 0);
|
2013-08-17 13:31:14 +00:00
|
|
|
frame_end:
|
2013-09-18 23:08:30 +00:00
|
|
|
ff_er_frame_end(&s->er);
|
|
|
|
|
2013-10-28 10:54:46 +00:00
|
|
|
if (avctx->hwaccel) {
|
|
|
|
ret = avctx->hwaccel->end_frame(avctx);
|
|
|
|
if (ret < 0)
|
2013-09-18 23:08:30 +00:00
|
|
|
return ret;
|
2013-10-28 10:54:46 +00:00
|
|
|
}
|
2013-09-18 23:08:30 +00:00
|
|
|
|
|
|
|
ff_MPV_frame_end(s);
|
|
|
|
|
2013-11-30 01:42:56 +00:00
|
|
|
if (CONFIG_MPEG4_DECODER && avctx->codec_id == AV_CODEC_ID_MPEG4)
|
|
|
|
ff_mpeg4_frame_end(avctx, buf, buf_size);
|
2002-06-02 12:16:28 +00:00
|
|
|
|
2013-03-13 22:36:51 +00:00
|
|
|
if (!s->divx_packed && avctx->hwaccel)
|
|
|
|
ff_thread_finish_setup(avctx);
|
|
|
|
|
2013-03-22 17:07:26 +00:00
|
|
|
av_assert1(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
|
|
|
|
av_assert1(s->current_picture.f.pict_type == s->pict_type);
|
2011-04-27 23:40:44 +00:00
|
|
|
if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
|
2012-11-21 20:34:46 +00:00
|
|
|
if ((ret = av_frame_ref(pict, &s->current_picture_ptr->f)) < 0)
|
|
|
|
return ret;
|
2013-03-12 10:23:07 +00:00
|
|
|
ff_print_debug_info(s, s->current_picture_ptr, pict);
|
2013-03-15 13:33:24 +00:00
|
|
|
ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1);
|
2006-03-10 20:40:52 +00:00
|
|
|
} else if (s->last_picture_ptr != NULL) {
|
2012-11-21 20:34:46 +00:00
|
|
|
if ((ret = av_frame_ref(pict, &s->last_picture_ptr->f)) < 0)
|
|
|
|
return ret;
|
2013-03-12 10:23:07 +00:00
|
|
|
ff_print_debug_info(s, s->last_picture_ptr, pict);
|
2013-03-15 13:33:24 +00:00
|
|
|
ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1);
|
2006-03-10 20:40:52 +00:00
|
|
|
}
|
|
|
|
|
2013-10-23 17:26:59 +00:00
|
|
|
if (s->last_picture_ptr || s->low_delay) {
|
2013-08-23 22:56:26 +00:00
|
|
|
if ( pict->format == AV_PIX_FMT_YUV420P
|
|
|
|
&& (s->codec_tag == AV_RL32("GEOV") || s->codec_tag == AV_RL32("GEOX"))) {
|
|
|
|
int x, y, p;
|
|
|
|
av_frame_make_writable(pict);
|
|
|
|
for (p=0; p<3; p++) {
|
2013-08-24 02:09:43 +00:00
|
|
|
int w = FF_CEIL_RSHIFT(pict-> width, !!p);
|
|
|
|
int h = FF_CEIL_RSHIFT(pict->height, !!p);
|
2013-08-23 22:56:26 +00:00
|
|
|
int linesize = pict->linesize[p];
|
|
|
|
for (y=0; y<(h>>1); y++)
|
|
|
|
for (x=0; x<w; x++)
|
|
|
|
FFSWAP(int,
|
|
|
|
pict->data[p][x + y*linesize],
|
|
|
|
pict->data[p][x + (h-1-y)*linesize]);
|
|
|
|
}
|
|
|
|
}
|
2012-11-13 18:35:22 +00:00
|
|
|
*got_frame = 1;
|
2002-03-12 22:54:25 +00:00
|
|
|
}
|
2002-12-18 09:23:24 +00:00
|
|
|
|
2013-10-28 16:05:59 +00:00
|
|
|
if (slice_ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE))
|
2013-10-22 17:37:44 +00:00
|
|
|
return ret;
|
|
|
|
else
|
|
|
|
return get_consumed_bytes(s, buf_size);
|
2001-07-22 14:18:56 +00:00
|
|
|
}
|
|
|
|
|
2013-02-18 16:15:52 +00:00
|
|
|
const enum AVPixelFormat ff_h263_hwaccel_pixfmt_list_420[] = {
|
|
|
|
#if CONFIG_VAAPI
|
|
|
|
AV_PIX_FMT_VAAPI_VLD,
|
|
|
|
#endif
|
|
|
|
#if CONFIG_VDPAU
|
|
|
|
AV_PIX_FMT_VDPAU,
|
|
|
|
#endif
|
|
|
|
AV_PIX_FMT_YUV420P,
|
|
|
|
AV_PIX_FMT_NONE
|
|
|
|
};
|
|
|
|
|
2011-01-25 21:40:11 +00:00
|
|
|
AVCodec ff_h263_decoder = {
|
2011-07-17 10:54:31 +00:00
|
|
|
.name = "h263",
|
2013-10-03 20:57:53 +00:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
|
2011-07-17 10:54:31 +00:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2012-08-05 09:11:04 +00:00
|
|
|
.id = AV_CODEC_ID_H263,
|
2011-07-17 10:54:31 +00:00
|
|
|
.priv_data_size = sizeof(MpegEncContext),
|
|
|
|
.init = ff_h263_decode_init,
|
|
|
|
.close = ff_h263_decode_end,
|
|
|
|
.decode = ff_h263_decode_frame,
|
2012-04-06 16:19:39 +00:00
|
|
|
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
|
|
|
|
CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
|
|
|
|
.flush = ff_mpeg_flush,
|
2012-05-25 10:35:42 +00:00
|
|
|
.max_lowres = 3,
|
2013-02-18 16:15:52 +00:00
|
|
|
.pix_fmts = ff_h263_hwaccel_pixfmt_list_420,
|
2001-07-22 14:18:56 +00:00
|
|
|
};
|
2012-07-15 11:54:08 +00:00
|
|
|
|
|
|
|
AVCodec ff_h263p_decoder = {
|
|
|
|
.name = "h263p",
|
2013-10-04 10:34:23 +00:00
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
|
2012-07-15 11:54:08 +00:00
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
2012-08-07 20:45:46 +00:00
|
|
|
.id = AV_CODEC_ID_H263P,
|
2012-07-15 11:54:08 +00:00
|
|
|
.priv_data_size = sizeof(MpegEncContext),
|
|
|
|
.init = ff_h263_decode_init,
|
|
|
|
.close = ff_h263_decode_end,
|
|
|
|
.decode = ff_h263_decode_frame,
|
|
|
|
.capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
|
|
|
|
CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
|
|
|
|
.flush = ff_mpeg_flush,
|
|
|
|
.max_lowres = 3,
|
2013-02-18 16:15:52 +00:00
|
|
|
.pix_fmts = ff_h263_hwaccel_pixfmt_list_420,
|
2012-07-15 11:54:08 +00:00
|
|
|
};
|