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Re: CAAudioFile bug (cont)

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Re: CAAudioFile bug (cont)

Subject: Re: CAAudioFile bug (cont)
From: Doug Wyatt <email@hidden>
Date: Tue, 31 May 2005 15:16:32 -0700

I think you're right, that's a bug.

On the other hand, it's good to avoid making this call if possible -- or at least make it on a separate thread. For some file formats (notably MP3 and MP4), GetNumberPackets() will have to read through the whole file.

Doug

On May 29, 2005, at 9:14, Antoine Misout wrote:

This might be useful to some:
It seems that one have to change:
SInt64  CAAudioFile::GetNumberFrames() const
{
    [...]
    return mFileDataFormat.mFramesPerPacket * GetNumberPackets();
}
to
SInt64 CAAudioFile::GetNumberFrames() const { [...] return mFileDataFormat.mFramesPerPacket * GetNumberPackets() - mFrame0Offset; }

to get the proper number of frames for certain files (aac in my test case). Didn't break anything else as far as I could test (wav/ aiff/mp3).

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References:  
  >CAAudioFile bug (cont) (From: Antoine Misout <email@hidden>)




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