On Nov 15, 2006, at 6:13 AM, Sandeep Chandna wrote:
Hi,
In my audio-conversion application, I was using SoundDescriptionV1
and AddMediaSample functions to encode output. All was going well
until I added sampleRates 88.2khz, 96khz, and 192khz. It looks like
they fall under SoundDescriptionV2 category.
This is a QuickTime question, so it should probably be asked on the
quicktime api list.
Now I am not sure what all I need to change here. Does
AddMediaSample take SoundDescriptionV2 directly or do I have to use
AddMediaSample2 there?
AddMediaSample works fine with SoundDescriptionV2's.
As far as I found in previous posts and docs available, I need to
do something like this. Is this flow correct?
create output/inputASBDs
create Layout,MagicCookie
call SoundDescriptionCreate with above three and get sdh say
Yes. Make sure you use QTSoundDescriptionCreate() to make your sound
description. Don't create it by hand. It's really hard to get all
the fields right when filling in sdh's by hand.
-Brad Ford
QuickTime Engineering
while(end)
{
//AudioBufferList etc
call SCAudioFillBuffer to get encoded data
call AddMediaSample and pass the sdh created above
}
Do I need to take care of any other things here ?
Thanks
Sandeep
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