Transcoding error - Output file #1 does not contain any stream

[Dcmc]

I am trying to get hardware transcoding working as expected so I can enable it where I need it. The transcoded stream does not work with any options or cameras I have tried. This install is in docker, with a Tesla P4 GPU also passed through to the container. I have tried this with nvenc and qsv with the same result.

To reproduce: enable transcoding and try to view stream

Expected behavior: a working stream

Logs from relevant camera:

[Front Door Camera] video codec/container not matched, transcoding: undefined {"url":"rtsp://127.0.0.1:37993/2746c101069e7cc0","urls":["rtsp://10.10.1.246:37993/2746c101069e7cc0"],"container":"rtsp","inputArguments":["-analyzeduration","0","-probesize","500000","-reorder_queue_size","0","-rtsp_transport","tcp","-f","rtsp","-i","rtsp://127.0.0.1:37993/2746c101069e7cc0"],"mediaStreamOptions":{"id":"channel1","name":"Stream 2","url":"rtsp://10.10.0.21:554/cam/realmonitor?channel=1&subtype=1","container":"rtsp","video":{"codec":"h264","width":704,"height":480,"bitrate":640000,"maxBitrate":768000,"minBitrate":128000,"h264Info":{"fuab":false,"stapb":false,"mtap16":false,"mtap32":false,"sei":false,"reserved0":false,"reserved30":false,"reserved31":false}},"audio":{},"tool":"scrypted","sdp":"v=0\r\no=- 2252092129 2252092129 IN IP4 0.0.0.0\r\ns=Media Server\r\nc=IN IP4 0.0.0.0\r\nt=0 0\r\na=control:*\r\na=packetization-supported:DH\r\na=rtppayload-supported:DH\r\na=range:npt=now-\r\nm=video 0 RTP/AVP 96\r\na=control:trackID=0\r\na=framerate:20.000000\r\na=rtpmap:96 H264/90000\r\na=fmtp:96 packetization-mode=1;profile-level-id=4D001E;sprop-parameter-sets=Z00AHukBYHtCAAAH0gABONAIAA==,aOqPIAA=\r\na=recvonly","prebuffer":1998.25,"prebufferBytes":158287,"oobCodecParameters":true},"h264EncoderArguments":["-c:v","h264_qsv"],"destinationVideoBitrate":512000,"videoDecoderArguments":["-hwaccel","qsv"]}

[Front Door Camera] -hide_banner -hwaccel qsv -analyzeduration 0 -probesize 500000 -reorder_queue_size 0 -rtsp_transport tcp -f rtsp -i rtsp:[REDACTED] -bsf:v dump_extra -b:v 512000 -bufsize 1024000 -maxrate 512000 -r 15 -filter_complex scale='min(640,iw)':-2 -c:v h264_qsv -dn -sn -an -f rtp rtp://127.0.0.1:33872?pkt_size=1378 -acodec libopus -flags +global_header -ar 48000 -b:a 40k -bufsize 96k -ac 2 -application lowdelay -dn -sn -vn -f rtp rtp://127.0.0.1:60372? -sdp_file pipe:4

[Front Door Camera] Stream 2 active rebroadcast clients: 2
listen loop connection failed, restarting listener. Unrecognized configuration

[Doorbell Camera] motion fragment #92 sent. size: 1237610

[Front Door Camera] motion fragment #4 sent. size: 553095

[Front Door Camera] Input #0, rtsp, from 'rtsp://127.0.0.1:37993/2746c101069e7cc0':
  Metadata:
    title           : Media Server
  Duration: N/A, start: 2.030000, bitrate: 

[Front Door Camera] N/A
  Stream #0:0: Video: h264 (Main), yuv420p(progressive), 704x480, 20 fps, 100 tbr, 90k tbn, 40 tbc
Output #1, rtp, to 'rtp://127.0.0.1:60372?':
Output file #1 does not contain any stream

[Front Door Camera] Stream 2 active rebroadcast clients: 1

[Front Door Camera] ffmpeg exited

Desktop (please complete the following information):

• OS: Debian Buster
• Chrome
• Version 120

Smartphone (please complete the following information):

• Device: iPhone 15 Pro Max
• OS: 17.2
• Browser Safari

[gmcinalli]

I've the same problem.