[FFmpeg-devel] libswresample swr_compensate and swr_init
cus at passwd.hu
Sat Jan 7 12:28:11 CET 2012
Currently swr_init() does not create the resampler, if the input and
output frequency matches. But swr_compensate() expects the resampler to
exist, and it crashes if it does not.
So what should be done here?
a) if the user plans to use swr_compensate then he should pass the
SWR_FLAG_RESAMPLE flag to swr_init, and we should mention this requirement
in the documentation. Also fix swr_compensate not to crash but log an
error message if the resampler does not exist. (Unfortunately the return
type of that function is void...)
b) fix swr_compensate to create the resampler by itself if necessary.
Again the return type of swr_compensate is void, so extending the API may
be required for this.
c) some other way :)
I'd vote for plan b)
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