[FFmpeg-devel] HEVC: video_delay is larger in decoder than demuxer

[Danny Wilson]

I would like transcode a file with HEVC to a live stream with AVC.  The HEVC demuxer reports many errors:

> [hevc @ 0x25a3140] video_delay is larger in decoder than demuxer 
> If you want to help, upload a sample of this file to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel at ffmpeg.org)

This error message was reported as Defect #6019 8 years ago <https://fftrac-bg.ffmpeg.org/ticket/6019>. Around that time, in this post <https://patchwork.ffmpeg.org/project/ffmpeg/patch/1537956199-29213-1-git-send-email-mypopydev@gmail.com/>, Jun Zhao <https://patchwork.ffmpeg.org/project/ffmpeg/list/?submitter=50> suggested a patch to which Michael Niedermayer <https://patchwork.ffmpeg.org/project/ffmpeg/list/?submitter=1> objected to.  I couldn't find anything more recent.

The input file is an MPEG-TS (MPTS) and I am selecting only one service. The command line is below.
I can upload the file to streams.videolan.org <http://streams.videolan.org/> if needed.

Any suggestions to solve this problem?

Thanks
Danny

> ffmpeg -loglevel info \
>   -i inputFile.ts \
>   -map 0:p:167 -map -0:s \
>   -filter_complex [p:167:v]scale=1920x1080 \
>   -r 25 \
>   -force_key_frames 'expr:gte(t,n_forced*1)' \
>   -c:v libx264 -b:v 6M -x264-params scenecut=0 -threads 2 \
>   -c:a aac -b:a 64k -ac 2 \
>   -f mpegts -muxrate 8M 'udp://192.168.2.10:5555?overrun_nonfatal=1&pkt_size=1316&buffer_size=10000000&fifo_size=10000000'



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>   libavutil      57. 28.100 / 57. 28.100
>   libavcodec     59. 37.100 / 59. 37.100
>   libavformat    59. 27.100 / 59. 27.100
>   libavdevice    59.  7.100 / 59.  7.100
>   libavfilter     8. 44.100 /  8. 44.100
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>   libswresample   4.  7.100 /  4.  7.100
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