[FFmpeg-user] Apple Lossless conversion requires resampling?
Carl Eugen Hoyos
cehoyos at ag.or.at
Mon Jun 9 16:45:42 CEST 2014
Marcus Johnson <bumblebritches57 <at> gmail.com> writes:
> why does it depend on aresample?
(Command line and complete, uncut console output
> does this mean that the output isn't lossless
Please test: If it is not lossless, this would be a
serious bug that we would like to know of!
(for 16 bit!)
> or at the very least that it's wasting CPU time
> resampling audio each time I convert it?
It is "wasting" CPU cycles to speed the general
transcoding process up.
(Or more exactly: To speed up processes in general,
possibly - but unlikely - at the cost of some
specific transcodings being slower.)
> ./configure --enable-shared
I am assuming you are using this flag (that is extremely
expensive at compile time) because you want a faster
executable, is this correct?
This option makes sure your final executable is slow.
> --enable-opencl --disable-filters
These options are useless together
(I am not sure --enable-opencl is very useful over
all but in any case, it only works with some
> --disable-bsfs --disable-decoders --disable-demuxers
> --disable-encoders --disable-filters --disable-hwaccels
> --disable-indevs --disable-muxers
> --disable-parsers --disable-protocols
There is --disable-everything (which does not disable
everything but exactly the same as these options).
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