Re: AudioFileComponents
Re: AudioFileComponents
- Subject: Re: AudioFileComponents
- From: William Stewart <email@hidden>
- Date: Mon, 12 Sep 2005 12:53:11 -0700
On 12/09/2005, at 6:50 AM, Francisco Gimeno wrote:
Hello
I have been studying how to impement Ogg Support for MacOsX. I have
though that Ogg File Format should be inside into an
AudioFileComponent, and Vorbis codec in a AudioCodecComponent.
Right
As Ogg supports Video too ( with other VideoCodecs ) I wouldn't
want to implement just another FileComponent for Video ( indeed, I
haven't seen the Doc for it ).
ok - AudioFileComponents are as you might imagine, designed to
extract audio data from files. If the format is commonly used to
contain just audio data, then it is useful to support this component.
For instance, we provide a component that supports MP4 files, but
will only read these files IFF they have just an audio track in them.
If the mp4 file contains video, then we skip the file (as we don't
want to introduce problems with synch between audio and other(video)
data formats). We don't have an AFC for QT movie files because this
isn't a format commonly used for just audio data.
So, what's the right way for supporting Ogg File Format for both
Audio and Video Codecs reusing the most?
QuickTime provides an import and export components (eat/spit
components) that are designed to translate a file to/from QT's movie
file format. With these components, you would be able to read/write
ogg files with the QT APIs and applications.
It really depends on what you want, what your common usage scenario
is, the users you want to support, how much time/work you want to do,
etc.
Bill
Thank you,
Francisco Gimeno
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