af_lavrresample: fix crash with size 0

The filter output size can be 0. Due to how filtering works, this is
nothing unusual, but avresample_convert() will return 0. The same case
is already handling with "normal" resampling (this commit fixes the
reordering code).

Additionally, don't use an assert(). avresample_convert() failing is
unusual, but might also happen due to e.g. internal out of memory
conditions, so we shouldn't just crash on it.

Curiously observed with --ao=oss --audio-channels=5.1 when changing
speed.

0 files changed, 0 insertions, 0 deletions