Lists

Terms and Conditions
Lists hosted on this site
Email the Postmaster
Tips for posting to public mailing lists

Re: AVAssetReader how to get file size

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: AVAssetReader how to get file size

Subject: Re: AVAssetReader how to get file size
From: Kevin Dixon <email@hidden>
Date: Thu, 16 Jun 2016 13:15:10 -0700

You will have to represent your progress bar with the duration I think. You can look at the current format settings (e.g. Sample Rate, etc) to determine how much data you've pulled out with copyNextBuffer as you go as a percentage of duration

Kevin

On Tue, Jun 14, 2016 at 12:33 PM, Andy Davidson <email@hidden> wrote:

I need to read an asset from a users iPod library and convert it to LPCM. I want put up an import progress bar. Any idea how I can find the number of bytes I need to read? PMediaItemPropertyPlaybackDuration returns the play back duration in sec.

  AVAssetReader *assetReader = [[AVAssetReader assetReaderWithAsset:songAsset

error:&assetError]

retain];
AVAssetReaderOutput *assetReaderOutput = [[AVAssetReaderAudioMixOutput
   assetReaderAudioMixOutputWithAudioTracks:songAsset.tracks
   audioSettings: nil]
retain];
if (! [assetReader canAddOutput: assetReaderOutput]) {
  return;
}

[assetReader addOutput: assetReaderOutput];

fileSize = [assetReader ????]
Thanks in advance

Andy

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

Follow-Ups:
- Re: AVAssetReader how to get file size
  - From: Andy Davidson <email@hidden>

References:
	>AVAssetReader how to get file size (From: Andy Davidson <email@hidden>)

Prev by Date: Audio Unit Extension using an audio graph
Next by Date: Re: AVAssetReader how to get file size
Previous by thread: AVAssetReader how to get file size
Next by thread: Re: AVAssetReader how to get file size
Index(es):
- Date
- Thread