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https://gitee.com/openharmony/third_party_ffmpeg
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cd1ad18a65
This changes a number of FATE results, since before this commit, the timestamps in all tests using rawenc were made up by lavf. In most cases, the previous timestamps were completely bogus. In some other cases -- raw formats, mostly h264 -- the new timestamps are bogus as well. The only difference is that timestamps invented by the muxer are replaced by timestamps invented by the demuxer. cscd -- avconv sets output codec timebase from r_frame_rate and r_frame_rate is in this case some guessed number 31.42 (377/12), which is not accurate enough to represent all timestamps. This results in some frames having duplicate pts. Therefore, vsync 0 needs to be changed to vsync 2 and avconv drops two frames. A proper fix in the future would be to set output timebase to something saner in avconv. nuv -- previous timestamps for video were wrong AND the cscd comment applies, one frame is dropped. vp8-signbias -- the file contains two frames with identical timestamps, so -vsync 0 needs to be removed/changed to -vsync 2 and avconv drops one frame. vc1-ism -- apparrently either the demuxer lies about timestamps or the file is broken, since dts == pts on all packets, but reordering clearly takes place.
78 lines
2.5 KiB
C
78 lines
2.5 KiB
C
/*
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* Raw Video Encoder
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* Copyright (c) 2001 Fabrice Bellard
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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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* Raw Video Encoder
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*/
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#include "avcodec.h"
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#include "raw.h"
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#include "internal.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/intreadwrite.h"
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static av_cold int raw_init_encoder(AVCodecContext *avctx)
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{
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avctx->coded_frame = (AVFrame *)avctx->priv_data;
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avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
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avctx->coded_frame->key_frame = 1;
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avctx->bits_per_coded_sample = av_get_bits_per_pixel(&av_pix_fmt_descriptors[avctx->pix_fmt]);
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if(!avctx->codec_tag)
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avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt);
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return 0;
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}
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static int raw_encode(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *frame, int *got_packet)
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{
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int ret = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height);
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if (ret < 0)
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return ret;
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if ((ret = ff_alloc_packet(pkt, ret)) < 0)
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return ret;
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if ((ret = avpicture_layout((const AVPicture *)frame, avctx->pix_fmt, avctx->width,
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avctx->height, pkt->data, pkt->size)) < 0)
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return ret;
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if(avctx->codec_tag == AV_RL32("yuv2") && ret > 0 &&
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avctx->pix_fmt == PIX_FMT_YUYV422) {
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int x;
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for(x = 1; x < avctx->height*avctx->width*2; x += 2)
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pkt->data[x] ^= 0x80;
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}
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pkt->flags |= AV_PKT_FLAG_KEY;
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*got_packet = 1;
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return 0;
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}
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AVCodec ff_rawvideo_encoder = {
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.name = "rawvideo",
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.type = AVMEDIA_TYPE_VIDEO,
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.id = CODEC_ID_RAWVIDEO,
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.priv_data_size = sizeof(AVFrame),
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.init = raw_init_encoder,
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.encode2 = raw_encode,
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.long_name = NULL_IF_CONFIG_SMALL("raw video"),
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};
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