can't play rtsp stream

[mczerski]

Hi,

I'm using version 2.0 and I can't play rtsp stream, this is log output:

WARNING  Download of 'rtsp://rozpruwacz.local:5004/test' failed due to unsupported schema
INFO     Unwrapping stream from URI (rtsp://rozpruwacz.local:5004/test) failed: error downloading URI rtsp://rozpruwacz.local:5004/test
WARNING  Track is not playable: rtsp://rozpruwacz.local:5004/test

I norrowed it down to the mopidy.audio.scan.Scanner class.
if I type:

python /usr/lib/python2.7/dist-packages/mopidy/audio/scan.py rtsp://rozpruwacz.local:5004/test

I get:

gst-stream-error-quark: Internal data flow error. (1)

You can reproduce it with some accessible link, e.g.:
python /usr/lib/python2.7/dist-packages/mopidy/audio/scan.py rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov

[adamcik]

I can confirm testing with:

$ python mopidy/audio/scan.py rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov
rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov: Internal data flow error.

[adamcik]

Though looking at

gst-discoverer-1.0 rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov         
Analyzing rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov
Done discovering rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov

Topology:
  unknown: application/x-rtp
    video: H.264

Properties:
  Duration: 0:09:56.480000000
  Seekable: yes

It seems my GStreamer install is only finding the movie part of it. Also gst-play-1.0 play doesn't seem to like the URL. While VLC plays it just fine and also has sound. Might be an upstream issue :(

[adamcik]

Figured out what is going on here, rtspsrc has SOMETIMES pads. Which in turn means that we have to handle pad added on the src and then attach typefind+decodebin on each of the pads it produces.

Have a working hack the gets this functioning now, but still needs some cleanup before I can create a PR.