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Starred by 7 users
Status: Assigned
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Last visit > 30 days ago
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Pri: 3
Type: Bug



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Add RTP timestamp and capture NTP time support for multiple audio channels case
Reported by wu@webrtc.org, May 22 2014 Back to list
This is currently not possible because chrome only gets the mixed audio.

The first implementation ( issue 3111 ) only supports one channel case. 

This is to track the work to add multiple audio channels support after mixing is moved to chrome.


 
Comment 1 by wu@webrtc.org, May 30 2014
Summary: Add RTP timestamp and capture NTP time support for multiple audio channels case (was: Add capture NTP time support for multiple audio channels case)
Project Member Comment 2 by juberti@webrtc.org, Jun 7 2014
Labels: Timestamps
Comment 3 by wu@webrtc.org, Jul 25 2014
Owner: xians@webrtc.org
Assign to Shijing for now since he will be working on moving the mixer to chromium.
Project Member Comment 4 by tnakamura@webrtc.org, Nov 4 2015
Cc: -xians@webrtc.org henrik.lundin@webrtc.org tina.legrand@webrtc.org
Owner: ----
This bug hasn't been modified for more than a year. Is this still a valid open issue?
Project Member Comment 5 by henrik.lundin@webrtc.org, Nov 5 2015
Cc: minyue@webrtc.org
I don't know enough about this. Is it related to what +minyue worked on related to NTP and audio? Probably not...
Project Member Comment 6 by juberti@webrtc.org, Nov 5 2015
Cc: tommi@webrtc.org
Labels: -Area-Internals Area-Audio
Yes, this is making sure we can get e2e delay working for individual audio channels. Requires the mixer rework to finish.
Project Member Comment 7 by minyue@webrtc.org, Nov 5 2015
Owner: minyue@webrtc.org
I see. It is good to assign it someone in our team. I can be it.
Project Member Comment 8 by tina.legrand@webrtc.org, Nov 10
Labels: -Pri-2 Pri-3
Project Member Comment 9 by ale...@webrtc.org, Dec 22
I was going through my TODOs and found a reference to this in the Audio Mixer. I don't understand how this would be implemented. The mixer receives a bunch of streams, each of them may have the RTP or NTP timestamp set. After it's done mixing, only one timestamp comes out. What should that be? Should it be one of the incoming timestamps or should the mixer have its own counter?
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