I was looking for information on http://developer.apple.com/library/ios as well as on https://stackoverflow.com/, but could not find a simple and elegant solution.
I will describe the key problems: it takes to get MP3 file from your media library iPod and increase its volume. On receipt of the file and playing key problems arise.
But the questions - which are not resolved:
How do I change the volume and re-encode MP3 file - so the volume was changed forever? The solution given in iOS: Create an MP3 on device Xcode, building and dylibs Trouble playing mp3s after id3 image edit not strike me as simple and good.
How do I replace the files from your iTunes library to the ones that made my program? The need to force the user to synchronize this device, and manually drag and drop files to the library I razocharovyaet.
Are there any - any comments or suggestions. I would appreciate it.
I'm find in iTunes Music Library.xml key
Volume AdjustmentI can boost volume on iTunes via this =). This match more better for me, except encode and realization meshanisms of lame/ffmpeg etc.
2009
Track ID2009
NameStanding On The Shore
ArtistEmpire Of The Sun
Album ArtistEmpire Of The Sun
AlbumWalking On A Dream
Genre
KindАудиофайл MPEG
Size10564118
Total Time263836
Track Number1
Date Modified2011-11-26T19:52:01Z
Date Added2011-09-23T20:59:24Z
Bit Rate320
Sample Rate44100
Volume Adjustment192
Play Count12
Play Date3402675506
Play Date UTC2011-10-28T17:38:26Z
Skip Count2
Skip Date2011-11-06T10:15:51Z
Rating100
Album Rating60
Album Rating Computed
Persistent ID2CF1305AEEF0FCDB
Track TypeFile
Locationfile://localhost/Users/wins/Music/iTunes/iTunes%20Media/Music/Empire%20Of%20The%20Sun/Walking%20On%20A%20Dream/01%20Standing%20On%20The%20Shore.mp3
File Folder Count5
Library Folder Count1