Error "av_interleaved_write_frame(): Broken pipe" occurred and make transcoding app exit when do transcoding with DASH/HLS/RTMP

[liweki]

Describe the bug
While use such user case "1 xcode + 1 cdn docker + 1 4k streaming output + Dash/HLS/RTMP" to do transcoding, error "av_interleaved_write_frame(): Broken pipe" is printed after do transcoding about 40 frames, transcoding app FFMPEG exit.

Try several different combinations, the detail result as below table:

Input	Transcode + Output	Result
Local	Xcode + Local	Pass
Local	Xcode + CDN DASH Streaming	Fail
Host Streaming	Xcode + CDN DASH Streaming	Fail
Host Streaming	Host + Host local	Pass
Host Streaming	Host + Host DASH Streaming	Pass (libx264)
CDN Server Streaming	Host + Host DASH Streaming	Pass (libx264)
CDN Server Streaming	Host + CDN DASH Streaming	Fail (libx264)
CDN Server Streaming	Xcode + Local	Fail on other known issue
CDN Server Streaming	Xcode + CDN DASH Streaming	Fail (libx264 & svt-hevc)

To Reproduce
Steps to reproduce the behavior:

1. Streaming input in one cdn server: ffmpeg -re -stream_loop -1 -i input_clip_name -c:v copy -c:a copy -f flv rtmp://nginx_ip_1:port_ID_1/stream/nature
2. Run transcoding command in xcode server: ffmpeg -i rtmp://nginx_ip_1:port_ID_1/stream/nature -s 4096x2160 -c:a copy -c:v libsvt_hevc -f flv rtmp://nginx_ip_2:port_ID_2/dash/4kCamera

[TangZhiZhen]

it looks like ffmpeg vaapi issue, will submit issue into ffmpeg.

[chuchenyan]

it looks like ffmpeg vaapi issue, will submit issue into ffmpeg.

@TangZhiZhen ,what's the status?

[xinglongx]

can't reproduce this issue in the lastest code.
commit id: 9512773
streaming server: ffmpeg -re -stream_loop -1 -i *.mp4 -c:v copy -c:a copy -f flv rtmp://streaming_IP/myapp/test
live transcode server: ffmpeg -i rtmp://streaming_IP/myapp/test -s 4096x2160 -c:a copy -c:v libsvt_hevc -f flv rtmp://cdn-service/dash/4k