After OBS Studio 29.1, they added support for Enhanced RTMP, it is now possible to push HEVC streaming via RTMP, and SRS also support HEVC over RTMP and HTTP-FLV v6.0.2+.
Here is a simple tutorial on how to use OBS to push HEVC streams to SRS.
OBS support H.265 over RTMP v29.1+
The original RTMP protocol cannot support high-compression video formats such as HEVC or AV1. But from OBS Studio 29.1 Beta, OBS adds support for the updated: Enhanced RTMP. For more detail, please refer to: Enable AV1, HEVC via RTMP to YouTube.
Therefore, the first step to push an HEVC stream via RTMP from OBS is to download the latest version of OBS. (Download here: OBS Studio 29.1 Beta Release Page).
SRS support H.265 over RTMP v6.0.42+
- RTMP: Support enhanced RTMP specification for HEVC, v6.0.42.
- Player: Upgrade mpegts.js to support it.
Enhanced RTMP specification: https://github.com/veovera/enhanced-rtmp
First, start SRS v6.0.42+ with HTTP-TS support:
./objs/srs -c conf/http.ts.live.conf
Pulish HEVC via RTMP from OBS
- Your OBS version should be greater than v29.1, than open File -> Setting
- Select Stream -> Service to Custom…
- Select Output -> Output Mode to Advanced, than choice Encoder to HEVC
- Click Start Streaming
- Check your streaming from SRS console
- Preview your streaming by SRS Player
