FFmepg: Transcode will result in endless ffmpeg process #4055
Labels
Codec
HEVC, FFmpeg for ingesting, trascoding or codec.
EnglishNative
This issue is conveyed exclusively in English.
Describe the bug
Do transcode according to guide: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-ffmpeg.
If I start a ffmpeg transcode srs process and set the output to same srs process. It will result in endless ffmpeg process being triggered until the system's memory or cpu power exhausted.
Version
SRS 6 or maybe any SRS version support
transcode
To Reproduce
Steps to reproduce the behavior:
./objs/srs -c conf/ffmpeg.transcode.conf
ffmpeg -re -stream_loop -1 -i test.mp4 -vcodec h264 -profile:v baseline -acodec copy -f flv rtmp://localhost/live/livestream
ffmpeg
processes, or check the srs log.ffmpeg
processes will be started to do transcode and republish the transcoded stream to same srs process, which will trigger anotherffmpeg
process to do another transcode, dead endless loops.e.g.
live/livestream_ff
will triggerlive/livestream_ff_ff
;live/livestream_ff_ff
will triggerlive/livestream_ff_ff_ff
;... endless;
Expected behavior
the tutorial https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-ffmpeg update, maybe remind the user don't sent the output to same srs process.
Or
refactor the
transcode
feature, let it only accept certain streams[app]/[stream]
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