Audio on .3g2 phone video not working

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dthatcher7
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Audio on .3g2 phone video not working

Postby dthatcher7 » 12 Oct 2010 21:11

Running VLC 1.1.4 on Win7 Pro 32bit.
The following file was sent to me from my wife's cellphone (Samsung Convoy). The video shows fine but I get no audio.
http://dl.dropbox.com/u/415673/1012101156.3g2 (580KB)
VLC shows the audio as being QCELP format, which is listed as being currently supported by VLC.
I used ffmpeg to convert to an MP4 H264 video which played fine in VLC.

Jean-Baptiste Kempf
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Re: Audio on .3g2 phone video not working

Postby Jean-Baptiste Kempf » 13 Oct 2010 01:07

Indeed, that is a bug.
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Lotesdelere
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Re: Audio on .3g2 phone video not working

Postby Lotesdelere » 13 Oct 2010 01:10

VLC reports the audio stream as being stereo while in fact it is mono.

Code: Select all

avcodec warning: Physical channel configuration not set : guessing ... main debug: filter(s) 'f32l'->'f32l' 8800 Hz->8000 Hz Stereo->Stereo

Jean-Baptiste Kempf
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Re: Audio on .3g2 phone video not working

Postby Jean-Baptiste Kempf » 13 Oct 2010 01:15

Indeed.
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http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
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dthatcher7
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Re: Audio on .3g2 phone video not working

Postby dthatcher7 » 14 Oct 2010 17:03

Should I go ahead and enter a bug in the tracking system?

Lotesdelere
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Re: Audio on .3g2 phone video not working

Postby Lotesdelere » 14 Oct 2010 18:46

Yes please, do it.
You can also mention in your report that the file is playing fine with FFplay (if you don't know what FFplay is then don't worry, the devs know what it means :) )

Jean-Baptiste Kempf
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Re: Audio on .3g2 phone video not working

Postby Jean-Baptiste Kempf » 15 Oct 2010 00:56

Audio channels detection is done wrongly on this sample.
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.

dthatcher7
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Re: Audio on .3g2 phone video not working

Postby dthatcher7 » 16 Oct 2010 00:51

Just opened Ticket #4255. Thanks, all!


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