I am surprised that reoffer wasn't rejected outright; you cannot
reorder m-sections like this. I will need to look into why you did not
hit an error sooner.
Best regards,
Byron Campen
On 2/11/16 10:54 AM, Alexander Abagian wrote:
Does Firefox support partial offers and answers ?
I encovered a problem with more than two participants in Firefox client.
The client works in the following manner :
1)
setLocalDescription [offer]
a=group:BUNDLE sdparta_0 sdparta_1
...
m=audio
a=mid:sdparta_0
...
m=video
a=mid:sdparta_1
...
setRemoteDescription [answer]
a=group:BUNDLE sdparta_0 sdparta_1
...
m=audio
a=mid:sdparta_0
...
m=video
a=mid:sdparta_1
...
2)
setRemoteDescription [offer]
a=group:BUNDLE sdparta_0 sdparta_audio_1 sdparta_1 sdparta_video_1
...
m=audio
a=mid:sdparta_0
...
m=audio
a=mid:sdparta_audio_1
...
m=video
a=mid:sdparta_1
...
m=video
a=mid:sdparta_video_1
...
setLocalDescription [answer]
a=group:BUNDLE sdparta_0 sdparta_audio_1 sdparta_1 sdparta_video_1
...
m=audio
a=mid:sdparta_0
...
m=audio <<<<<<<<<<< fail
a=mid:sdparta_audio_1
...
m=video
a=mid:sdparta_1
...
m=video
a=mid:sdparta_video_1
...
In the pointed point, Firefox asserts "In GetAudioConduit, we found a video
conduit!". Probably by some (unknown for me) reason it compares the first local SDP
with the second one, where the level (number of m-line) really differs.
I found Partial Offers and Answers (draft-roach-mmusic-pof-pan-02) document
that resolves the problem. The question is if it is supported by Firefox or not.
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