[vlc-devel] qtcapture and audio

[Rémi Denis-Courmont]

On Fri, 29 Jul 2011 15:33:49 +0200, "Feurstein, Michael"
<Michael.Feurstein at wu.ac.at> wrote:
> I've looked at other modules such as (dc1394.c; auhal.c and araw.c) to
try
> and understand how audio data is being processed there.

I would rather look at access_alsa or access_oss in this case.

> The QTFormatDescriptionAudioStreamBasicDescriptionAttribute returns the
> following data for the QTSampleBuffer:

> 2011-07-29 14:52:39.983 VLC[11466:ee0b]   Format ID:                
lpcm
> 2011-07-29 14:52:39.983 VLC[11466:ee0b]   Format Flags:               
29
> 2011-07-29 14:52:39.984 VLC[11466:ee0b]   Bytes per Packet:            
4
> 2011-07-29 14:52:39.984 VLC[11466:ee0b]   Frames per Packet:           
1
> 2011-07-29 14:52:39.984 VLC[11466:ee0b]   Bytes per Frame:             
4
> 2011-07-29 14:52:39.985 VLC[11466:ee0b]   Channels per Frame:          
2
> 2011-07-29 14:52:39.985 VLC[11466:ee0b]   Bits per Channel:           
32

LPCM seems odd. I would have expected S16N or FL32, but maybe I don't
understand what QTcapture does.

-- 
Rémi Denis-Courmont
http://www.remlab.net/