Re: How to configure AudioConverter to write VBR?
Re: How to configure AudioConverter to write VBR?
- Subject: Re: How to configure AudioConverter to write VBR?
- From: Brad Ford <email@hidden>
- Date: Thu, 12 Feb 2009 00:57:16 -0800
On Feb 11, 2009, at 7:37 PM, Jens Alfke wrote:
On Feb 11, 2009, at 6:33 PM, William Stewart wrote:
yes - this is how the QT dialog in export does this.
I don't suppose it's possible to call QT just to run this dialog,
but then just grab the parameters out of it and do the encoding
using my own CA-based code?
You can indeed do that. That's one of its intended uses. It
publishes a lot of properties from which you could construct your own
encode AudioConverter. You can also use it as a "fancier"
AudioConverter -- one that does mixing if necessary. It has an
identical interface to AudioConverterFillComplexBuffer
(SCAudioFillBuffer). You could also run the dialog once and get a
binary blob of settings from it, stash it away in your bundle, then
make a new SCAudio instance sometime in the future, set the blob on
it, and away you go with a properly configured decode/encode.
I presume you've taken a look at the scaudiocompress sample code?
-Brad Ford
QuickTime Engineering
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