Re: AudioStreamBasicDescription ?
Re: AudioStreamBasicDescription ?
- Subject: Re: AudioStreamBasicDescription ?
- From: William Stewart <email@hidden>
- Date: Mon, 8 Mar 2004 17:47:32 -0800
Yes, they do still keep track of these 4CC:
http://developer.apple.com/dev/cftype/
Your codec's subtype would be this "format type"
Your codec's manufacturer type you should also register here as well.
Bill
On 08/03/2004, at 5:20 PM, Jeff Moore wrote:
>
The usual guidelines for four char codes applies. Apple reserves all
>
4CCs that are made up of lowercase characters. The rest are up for
>
grabs. DTS used to keep track of who registered which 4CCs for
>
something, but I don't know if they still do that.
>
>
On Mar 8, 2004, at 5:05 PM, Ken Hawkins wrote:
>
>
> i see in making use of an AudioStreamBasicDescription that there is a
>
> FormatID that i need to pass in. we are developing a new type for an
>
> Audio Codec. what are the guidelines for defining a format ID to use
>
> here? are there any?
>
> i am really hesitant to just arbitrarily define a UInt32 for this.
>
>
--
>
>
Jeff Moore
>
Core Audio
>
Apple
>
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