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 protected]> 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 protected]) > Help/Unsubscribe/Update your Subscription: > > https://lists.apple.com/mailman/options/coreaudio-api/kevin.c.dixon%40gmail.com > > This email sent to [email protected] >
_______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/coreaudio-api/archive%40mail-archive.com This email sent to [email protected]
