[FFmpeg-trac] #858(undetermined:closed): replace the current ALAC code with the ALAC code from Apple

[FFmpeg]

#858: replace the current ALAC code with the ALAC code from Apple
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             Reporter:  ffmpeguser   |                    Owner:
                 Type:  enhancement  |                   Status:  closed
             Priority:  normal       |                Component:
              Version:               |  undetermined
             Keywords:               |               Resolution:  wontfix
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by reimar):

 Also a standard without at least a second independent implementation is
 not a standard but a joke.
 So removing the only (major?) alternative implementation I know of sure
 isn't a good idea.
 That is ignoring the fact that the Apple code neither fits into the FFmpeg
 framework nor follows our coding standard.
 I at least do not know about the code quality, does the Apple code work on
 bigendian (probably yes)? On CPUs which do not support unaligned
 reads/writes (slightly less likely)?
 Supporting an external library based on Apple's code like we do for Vorbis
 and others of course would be possible, if someone feels motivated to do
 that (and if/when such a library exists).

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/858#comment:4>
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