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Re: SoundDescription



Hi Sandeep,

I believe you can just pass the SoundDescriptionV2 to AddMediaSample. Your flow looks reasonable. But you should ask to be sure on the quicktime-api list, since those are QuickTime APIs, not Core Audio APIs.

Greg Chapman


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.

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?

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

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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References: 
 >SoundDescription (From: "Sandeep Chandna" <email@hidden>)



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