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sss
#linux #audio

do we have any multi-threaded flac encoder ?
12 Sep 2023 at 22:19 | Open on pleroma.dark-alexandr.net
7 comments
Iron Bug
@sss I'm not sure there's anything to compute in parallel. the algorithms themselves are linear and can barely get any profit from parallelization.
13 Sep 2023 at 0:05 | Open on friendica.ironbug.org
sss
doesn't it split data into chunks ?
13 Sep 2023 at 0:47 | Open on pleroma.dark-alexandr.net
Iron Bug
@sss it does. but libflac is single-threaded and since nobody wrote any other implementation still chances are this is not effective.
13 Sep 2023 at 1:06 | Open on friendica.ironbug.org
sss
ffmpeg use own implementation, but it is also singlethreaded, also something exists for opencl/cuda which seems to be limited to windows only for now (at least i am not able to find source code)
13 Sep 2023 at 1:42 | Open on pleroma.dark-alexandr.net
sss
Iron Bug
@sss they have reasonable question: what's the use case? nobody needs to encode flac in realtime. and there're much more important things in ffmpeg to be done.
13 Sep 2023 at 1:54 | Open on friendica.ironbug.org
sss
for example it would be very useful for reencoding large collections or large files, of course as workaround it is possible to run many singlethreaded encoding processes, but this is not best approach ....
13 Sep 2023 at 6:26 | Open on pleroma.dark-alexandr.net
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