• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Reading bytes from an audio file
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Reading bytes from an audio file


  • Subject: Re: Reading bytes from an audio file
  • From: Bob Aron <email@hidden>
  • Date: Mon, 22 Sep 2003 15:37:19 -0700

Brian,

How big is the file? The byte count returned from AudioFileGetProperty() is a SInt64 value but you have to pass a UInt32 * for the size of your buffer for AudioFIleReadBytes(). You wouldn't be able to read all the bytes in one pass if the byte count is larger than a UInt32 value. Sure you aren't passing 0 bytes for your size?

bob aron



On Sep 22, 2003, at 2:15 PM, B&L wrote:

Hello

I am trying to load the audio bytes from a WAV file.

I am doing this by first reading the size property of the audio file using the function AudioFileGetProperty().

Using this size I try to read the audio bytes using the function AudioFileReadBytes, into an array of the same size, which is allocated through malloc(sizeof(char) * theAudioDataSize).

This keeps giving an kAudioFileUnspecifiedError! If I just try to read in 1024 bytes there is no error!

Anybody out there who knows if and what I am doing wrong?

The functions and error codes are all declared in the header file AudioFile.h.

Thanks

Brian
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.

References: 
 >Reading bytes from an audio file (From: B&L <email@hidden>)

  • Prev by Date: Re: Reading bytes from an audio file
  • Next by Date: How to know whether the data is ready or not while reading from soundcard
  • Previous by thread: Re: Reading bytes from an audio file
  • Next by thread: Re: Reading bytes from an audio file
  • Index(es):
    • Date
    • Thread