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Re: Issues in ExtAudioFileSeek and ExtAudioFileTell
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Re: Issues in ExtAudioFileSeek and ExtAudioFileTell


  • Subject: Re: Issues in ExtAudioFileSeek and ExtAudioFileTell
  • From: Abdul.Majeed <email@hidden>
  • Date: Mon, 9 Nov 2009 20:01:39 +0530

Hi Doug,

Thanks for your valuable input.

OS:  iPhone 3.1 and SDK 3.1,Mac OS 10.5.8
Calls which I made to ExtAudio file prior to first call ExtAudioFileSeek/ExtAudioFileTell as follows.

Example: for the file of particular type .mp3  (that is first file out of three, which I listed in my previous mail)

a) ExtFileOpenURL
   b) ExtAudioFileGetProperty (file format)

mSampleRate = 44100, 
      mFormatID = 778924083, 
      mFormatFlags = 0, 
      mBytesPerPacket = 0, 
      mFramesPerPacket = 1152, 
      mBytesPerFrame = 0, 
      mChannelsPerFrame = 2, 
      mBitsPerChannel = 0, 
      mReserved = 0

c) ExtAudioFileSetProperty (client format)

     mSampleRate = 44100, 
    mFormatID = 1819304813, 
    mFormatFlags = 12, 
    mBytesPerPacket = 4, 
    mFramesPerPacket = 1, 
    mBytesPerFrame = 4, 
     mChannelsPerFrame = 2, 
    mBitsPerChannel = 16, 
    mReserved = 0


         d) ExtAudioFileGetProperty(get total number of frames)
         e)ExtAudioFileSeek ( seek to the primeoffset) 


As I am not so good in this area,could you please explain me more by telling how do I over come  issue  especially which i mentioned in my  previous mail

Regards,
abdul

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  • Follow-Ups:
    • Re: Issues in ExtAudioFileSeek and ExtAudioFileTell
      • From: William Stewart <email@hidden>
References: 
 >Issues in ExtAudioFileSeek and ExtAudioFileTell (From: "Abdul.Majeed" <email@hidden>)
 >Re: Issues in ExtAudioFileSeek and ExtAudioFileTell (From: William Stewart <email@hidden>)
 >Re: Issues in ExtAudioFileSeek and ExtAudioFileTell (From: Abdul.Majeed <email@hidden>)
 >Re: Issues in ExtAudioFileSeek and ExtAudioFileTell (From: Doug Wyatt <email@hidden>)
 >Re: Issues in ExtAudioFileSeek and ExtAudioFileTell (From: Doug Wyatt <email@hidden>)

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