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Re: Wrap .aac into .m4a container
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Re: Wrap .aac into .m4a container


  • Subject: Re: Wrap .aac into .m4a container
  • From: William Stewart <email@hidden>
  • Date: Tue, 29 Jul 2008 11:09:57 -0700

Yes, all of this will get done for you

On Jul 29, 2008, at 2:35 AM, Thomas Clement wrote:

But the .m4a container needs to be actually created and placed around the aac contents.
AudioFileWritePackets won't do that, am I right?



Thanks for your help, Thomas


On Jul 29, 2008, at 3:34 AM, William Stewart wrote:

Using the AudioFileReadPackets call you can read the AAC packets from an ADTS file. Using AudioFileWritePackets you can write them to an M4A file.

So, its easy to write an audio file duplication tool by just opening an existing file, creating a new file with the same data format, then read/write the packets of audio data and the magic cookie, to the new file.

Bill


On Jul 26, 2008, at 6:37 AM, Thomas Clement wrote:

Hi,

What is the easiest way to wrap a raw .aac file into a regular .m4a container ?
Can I do that using Core Audio or is there another framework I should use (QTKit ?) ?


Thanks,
Thomas

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References: 
 >Wrap .aac into .m4a container (From: Thomas Clement <email@hidden>)
 >Re: Wrap .aac into .m4a container (From: William Stewart <email@hidden>)
 >Re: Wrap .aac into .m4a container (From: Thomas Clement <email@hidden>)

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