HEVC Stream recognized as H264

[TyrasNistru]

I'm trying to use ffmpeg and SLS to restream a H265/MPEG-TS video stream through SLS, but when I try to play the SRT stream that SLS serves, it is recognized as H264, giving me an audio-only stream.

The UDP-to-SRT ffmpeg call is as follows: ffmpeg -i udp://239.5.5.1:5004 -c copy -f mpegts "srt://localhost:5554?streamid=transmit/preview/23"

And I Try to play the SRT stream with the following command: ffplay -i srt://localhost:5554?streamid=player/preview/23

My sls.conf is:

srt {
    worker_threads  1;
    worker_connections 300 ;

    log_file logs/error.log ; 
    log_level info;

    server {
        listen 5554; 
        latency 20;

        domain_player player;
        domain_publisher transmit;
        backlog 100;
        idle_streams_timeout 10

        app {
            app_player preview ;           
            app_publisher preview ; 

            record_hls off;
            record_hls_segment_duration 10;
        }
    }
}

ffplay and ffprobe returns the following stream information:

Input #0, mpegts, from 'srt://localhost:5554?streamid=player/preview/23':
  Duration: N/A, start: 0.000000, bitrate: N/A
  Program 1 
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 ([27][0][0][0] / 0x001B), none, 24 tbr, 90k tbn, 180k tbc
    Stream #0:1[0x101](por): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 66 kb/s

preceded by a very long repetition of the following error:

[h264 @ 0x7ff92001cb40] no frame!
[h264 @ 0x7ff92001cb40] missing picture in access unit with size 185319
[h264 @ 0x7ff92001cb40] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[h264 @ 0x7ff92001cb40] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
[h264 @ 0x7ff92001cb40] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[h264 @ 0x7ff92001cb40] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)

The Stream given to SLS is definitly HEVC:

Input #0, mpegts, from 'udp://239.5.5.1:5004':
  Duration: N/A, start: 4.813333, bitrate: N/A
  Program 1 
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: hevc (HEVC / 0x43564548), yuv420p(tv), 1920x1080, 24 tbr, 90k tbn, 90k tbc
    Stream #0:1[0x101](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 65 kb/s
Output #0, mpegts, to 'srt://localhost:5554?streamid=transmit/preview/23':
  Metadata:
    encoder         : Lavf58.39.101
    Stream #0:0: Video: hevc (HEVC / 0x43564548), yuv420p(tv), 1920x1080, q=2-31, 24 tbr, 90k tbn, 90k tbc
    Stream #0:1(und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp, 65 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)

[sunlock21]

这个应该不支持HEVC 的ts

[TyrasNistru]

这个应该不支持HEVC 的ts

I don't think thats the case, since it works if I stream a HEVC file directly to sls.

[RichardCowart]

I am seeing the same issue. Easy to replicate. First stream h264 to sls. Stop the stream and begin streaming HEVC. ffprobe and ffplay reporting as h264 stream and is incorrect.

[matiaspl]

Same here. The built in TS parser in SLS does not support HEVC, it's unfortunately H264 only. I'm not sure a parser would be needed if there's no recording taking place (especially if for example the SRT stream is coming in encrypted), nevertheless I believe this to be root cause of the problem. If you try to do ffplay -codec:v hevc "srt://..." you will at some point get usable picture but this is only because ffmpeg tends to guess a lot of stuff that it suspects to be broken.

[timokorkalainen]

Does this mean srt-live-server does not support h265 streaming at the moment?

EDIT: No, it does not. It seems to mean that one can't change a stream from H264 to H265, without also changing the stream id.

[truedei]

参考： https://blog.csdn.net/qq_17623363/article/details/137863559?csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22137863559%22%2C%22source%22%3A%22qq_17623363%22%7D