search

ossrs / srs

SRS is a simple, high-efficiency, real-time media server supporting RTMP, WebRTC, HLS, HTTP-FLV, HTTP-TS, SRT, MPEG-DASH, and GB28181.
https://ossrs.io
MIT License
25.72k stars 5.39k forks source link

When pushing a stream without audio, the HLS stream contains abnormal audio encoding information. #4223

Open yang-441 opened 6 days ago

yang-441 commented 6 days ago

Describe the bug When streaming video without audio to SRS via the RTMP protocol, the resulting HLS playback anomalously contains audio information, causing compatibility issues with some players. By adding the configuration 'hls_acodec an', the aforementioned anomaly can be resolved without affecting video streams that contain audio. Should we consider making 'hls_acodec an' the default value?

step1: Using the RTMP protocol, push a video stream without audio to the SRS service. image

step2: While playing an HLS stream through VLC, it was discovered that the stream contains abnormal audio information. image

step3: Add the configuration: hls_acodec an. image

step4: Upon restreaming, it was observed that the abnormal audio information had disappeared. image

step5: Push a video stream with audio and test whether setting hls_acodec to 'an' will have an effect. image

Version Version number: SRS/5.0.x, 6.0.x, and so on.

TRANS_BY_GPT4

suzp1984 commented 4 days ago

I think hls.hls_acodec and hls.hls_vcodec can be deleted, the srs can adjust the hls video and audio codec very well, just like hls.hls_acodec an; hls.hls_vcodec vn; did.