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Re: M4A export with QTKit (or native QuickTime-API)?

Thanks for your answer.

Does this mean, that there is no (at least no documented) way to create a m4a file with the Quicktime API?

My problem with Apple's Chapter Tool is that it comes with a standard Apple License, that means (as far as I can tell) that I'm not allowed to include the Chapter Tool into my project and redistribute it. Please correct me if I'm wrong.

Cheers
Eberhard


Am 26.06.2006 um 21:02 schrieb Michael Slade:

Hi Eberhard,

As you have noticed, QuickTime Player is much more flexible than an iPod in
what it plays. The m4a file you are trying to create is an mp4 variant, not
an mov. Unless you have a way to build a reliable m4a file from scratch, I
believe the only straightforward way to do this at this time is using
Apple's Chapter Tool which is discussed here along with a download link:
http://www.apple.com/itunes/podcasts/faq.html

Perhaps this will be into QuickTime at some point as a particular kind of
export. If it is already hiding in there somewhere, it would be great if
someone would document it.

-- Michael

On 6/26/06 4:24 AM, "Eberhard Rensch" <email@hidden> wrote:

Hi,

I've created an "enhanced AAC" structure in a QuickTime movie
(wrapped into a QTMovie).
The movie contains 4 tracks (AAC track,chapter text track, URL text
track and a JPEG track) and some id3 tags as annotations.

When writing this to disk (with [qtMovie writeToFile:...] with
QTMovieFlatten flag set) I'll get a .mov file which works as expected
in QuickTime Player (chapters, images ect.) but obviously is not
usable with iTunes or an iPod.

In order to get a m4a file I suppose its necessary to export the
QTMovie into the right file format (instead of flatten it to a .mov
file).

I've tried to call:

NSDictionary* dict = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES],
QTMovieExport,
[NSNumber
numberWithInt:kQTFileTypeMP4], QTMovieExportType,
nil];
BOOL success = [dstMovie writeToFile:dstFilePath withAttributes:dict];

With that I've got a mp4-file where the chapter track and id3 tags
are gone and the URL-Text track and image track are mixed together to
one unclickable image track.

Are there any settings (maybe with QTMovieExportSettings) that give
me control over this? Or is there a way to do this task with old
style Quicktime-API?

I've searched the list archives and developer documentation over and
over again and couldn't find anything useful about this.

Anyone can help?

Thanks,

Eberhard 


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 >Re: M4A export with QTKit (or native QuickTime-API)? (From: Michael Slade <email@hidden>)



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