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ffmpeg: Correctly set pixel format 

While YUV420P is widely used, not all encoders accept it (e.g. Intel QSV only accepts NV12). We should use the codec's preferred pixel format instead as we need to rescale the frame anyway.
This commit is contained in:
zhupengfei 2020-02-01 11:22:41 +08:00
parent 834da14329
commit 17461b5d11
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1 changed files with 1 additions and 1 deletions
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src/core/dumping/ffmpeg_backend.cpp
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@ -126,7 +126,7 @@ bool FFmpegVideoStream::Init(AVFormatContext* format_context, AVOutputFormat* ou
codec_context->time_base.num = 1; codec_context->time_base.num = 1;
codec_context->time_base.den = 60; codec_context->time_base.den = 60;
codec_context->gop_size = 12; codec_context->gop_size = 12;
codec_context->pix_fmt = AV_PIX_FMT_YUV420P; codec_context->pix_fmt = codec->pix_fmts ? codec->pix_fmts[0] : AV_PIX_FMT_YUV420P;
if (output_format->flags & AVFMT_GLOBALHEADER) if (output_format->flags & AVFMT_GLOBALHEADER)
codec_context->flags |= AV_CODEC_FLAG_GLOBAL_HEADER; codec_context->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;