[FFmpeg-devel] Help required for testing ALAC encoder
Mon Jun 9 05:46:12 CEST 2008
On Monday 09 Jun 2008 8:10:22 am Justin Ruggles wrote:
> Mike Melanson wrote:
> > Jai Menon wrote:
> >> Hi,
> >> The ALAC encoder being written as part of GSoC 2008 is steadily
> >> progressing and it would be very helpful to have people who might have
> >> access to the latest iTunes/Quicktime or an iPod to help with testing.
> > No problem. I can help with all 3. Is the code ready for testing now?
> Testing can definitely start. The files which are generated should be
> valid ALAC and decode losslessly. Compression is not good yet since no
> prediction is used, only entropy coding.
> Since seeing Baptiste's earlier email, I've been testing using wine. I
> was able to get Quicktime 220.127.116.11 installed, and it played the files
> correctly. I also installed iTunes (which broke my Quicktime install)
> and it also played the files correctly. I'm guessing that it installed
> a different version of Quicktime since the standalone player stopped
> There is a known issue with the uncompressed mode, but I expect Jai will
> fix it soon.
As soon as the next few exams are over :-) , it should work with FFmpeg's ALAC
decoder in the meantime if anybody does want to experiment.
> It would be great to have as much testing done as possible. Right now
> it should be relatively stable since the current settings are matched to
> those in iTunes-generated samples. When more experimenting is done,
> things might get less predictable.
My thoughts exactly.
<realityman at gmx.net>
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