RTSP streams causing "Fatal Exception" with AVProVideo #302

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1. tangentlab

   added

   bug

   needs triage

   on Apr 6, 2023
2. Docteh commented on Apr 7, 2023

   

   Docteh

   on Apr 7, 2023

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   For the stream in question, I just want to comment that the particular streamKey linked might be invalidated, but a free account can be made at https://rtsp.stream/

   I suspect its taking issue with the response on the DESCRIBE command, particularly the audio portion.

   From the "pattern" stream

   m=audio 0 RTP/AVP 97
   a=control:rtsp://zephyr.rtsp.stream/pattern?streamKey=[redacted streamkey]/mediaUUID=9f310544-5799-4512-9c4c-6003c8e65bae
   a=rtpmap:97 MP4A-LATM/44100
   a=fmtp:97 config=40002410adca00; cpresent=0
   

   From the "movie" stream

   m=audio 0 RTP/AVP 97
   a=control:rtsp://zephyr.rtsp.stream/movie?streamKey=b4d79022901dc39d53fad135ca3915d0/mediaUUID=8d088b89-333b-469a-8cbf-67eaaeb18c01
   a=rtpmap:97 mpeg4-generic/48000/2
   a=fmtp:97 config=1190; indexdeltalength=3; indexlength=3; mode=AAC-hbr; profile-level-id=1; sizelength=13
   

   From my usual stream

   m=audio 0 RTP/AVP 96
   a=control:mediaUUID=5533ea8f-305c-4180-a3b8-d0fa34726146
   a=rtpmap:96 mpeg4-generic/48000/2
   a=fmtp:96 config=1190; indexdeltalength=3; indexlength=3; mode=AAC-hbr; profile-level-id=1; sizelength=13
   

   I suspect its the profile-level-id on the fmtp line that is being worried about.
3. icbaker commented on Apr 11, 2023

   

   icbaker

   on Apr 11, 2023

   Collaborator

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   It looks like RtspMediaTrack requires the profile-level-id parameter but RFC 6416 section 7.3 seems to indicate this parameter is optional with a default value of 30.

   Over to @microkatz to see if I've understood the RTSP spec correctly.
4. icbaker

   assigned

   microkatz

   on Apr 11, 2023
5. tangentlab commented on Apr 17, 2023

   

   tangentlab

   on Apr 17, 2023

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   Thanks for the response.

   For the stream in question, I just want to comment that the particular streamKey linked might be invalidated, but a free account can be made at https://rtsp.stream/

   I've been using the free account to test those streams.

   Does it seem like its possible that I should be able to gracefully handle this failure on my end or is this something that I can't protect against beyond from preventing users from providing rtsp streams?
6. microkatz commented on Apr 19, 2023

   

   microkatz

   on Apr 19, 2023

   Last edited by microkatz

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   Hi @tangentlab.

   I created a fix so that these mp4A-latm with missing profile-level-id attributes will use the default profile-level-id value. I'll update this page when that commit is entered into the main branch. This fix should allow your rtsp stream to be played.

   In addition, I noticed that you are running an older version of Exoplayer, v2.18.2? There was a fix that went into 2.18.4, google/ExoPlayer@89acf3c. This commit will alleviate the "Fatal Exception" that is crashing the player. However, you'll have to wait for the new code for the rtsp stream to be playable.
7. microkatz commented on Apr 26, 2023

   

   microkatz

   on Apr 26, 2023

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   Hello @tangentlab.

   Thank you for reporting your issue!

   This fix that I mentioned has been entered into the androidx/media main branch. Here is the commit: 165f4f2. This fix should allow your rtsp stream to be played.
8. microkatz

   closed this as completedon Apr 26, 2023
9. microkatz

   removed

   needs triage

   on Apr 26, 2023
10. tangentlab commented on Apr 26, 2023

    

    tangentlab

    on Apr 26, 2023

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    Great! Much appreciated. I'm excited to try it.
11. androidx

    locked and limited conversation to collaborators on Jun 26, 2023