FFMPEG Stream Fails

[weswitt]

Running Version: 1.9.3, Docker on Ubuntu

Trying to convert a H.264 RTSP stream to MJPEG, but it fails. Wondering what I'm doing wrong as I seemed to follow the examples in the README.

Config:

streams:
  test: ffmpeg:rtsp://admin:pwd@192.168.40.13:554/cam/realmonitor?channel=1&subtype=0#video=mjpeg

Log:

08:19:32.070 DBG [exec] run pipe args=["ffmpeg","-hide_banner","-v","error","-allowed_media_types","video","-fflags","nobuffer","-flag
s","low_delay","-timeout","5000000","-user_agent","go2rtc/ffmpeg","-rtsp_flags","prefer_tcp","-i","rtsp://admin:pwd@192.168.40.13:554/cam/realmonitor?channel=1&subtype=0","-c:v","mjpeg","-an","-f","mjpeg","-"]
08:19:34.363 DBG [exec] run pipe launch=2.293563923s
08:19:34.363 WRN [rtsp] error="streams: exec/pipe: %!w(<nil>)\n" stream=test
08:19:35.168 DBG [exec] [vost#0:0/mjpeg @ 0x7f3c0d5df380] Error submitting a packet to the muxer: Broken pipe
08:19:35.168 DBG [exec] [out#0/mjpeg @ 0x7f3c1181d6c0] Error muxing a packet
08:19:35.168 DBG [exec] [out#0/mjpeg @ 0x7f3c1181d6c0] Error writing trailer: Broken pipe
08:19:35.168 DBG [exec] [out#0/mjpeg @ 0x7f3c1181d6c0] Error closing file: Broken pipe

[weswitt]

Another data point. I can execute the exact ffmpeg command in the log and it works perfectly.

[AlexxIT]

Please check v1.9.4 and v1.8.5

[weswitt]

Thanks, upgrading to v1.9.4 seems to have fixed it.

I can connect via the stream link in the GO2RTC web UI just fine. But I have a basic usage question. What URL would I use to connect to the stream from something like VLC? Using the stream URL in the GO2RTC UI does not work from VLC.

[weswitt]

I can do "ffplay rtsp://192.168.10.166:8556/test" and the stream plays perfectly. But VLC cannot connect and play the stream. Any ideas why?

[AlexxIT]

I don't know why you wants to transcoding your RTSP stream to MJPEG. It's better to use default camera format. Transcoding input to MJPEG via FFmpeg is not a cheap operation. Getting RTSP MJPEG from go2rtc also is not a cheap operation. I'll check this situation. Maybe there is some bug with converting MJPEG to RTSP format.

[weswitt]

I want to transcode to MJPEG so that I can view the camera feed from the IP Camera app on my TV. The app does not support H.264 and MJPEG is what it wants.

I'm guessing that the transcode is working given that ffplay works. Is that not a correct assumption??

[AlexxIT]

MJPEG inside RTSP has very limited implementation. It's no surprise if some player works and some doesn't.

[Gagi2k]

Did you try something like this ?

  test:
    - ffmpeg:rtsp://camera-address/mpeg/media.amp?videoframeskipmode=empty#media=video#backchannel=0#hardware
    - ffmpeg:test#video=mjpeg#hardware