Add a regression test exercising the swr_convert(N) -> swr_convert(2N)
edge case: the second call reuses the internal preout buffer at full
capacity, with no trailing slack from swri_realloc_audio()'s amortized
doubling. internal_sample_fmt is forced to S16P to reach the int16 SIMD
resample path, where ff_resample_common_int16_sse2 overruns its
destination by 2 bytes on the last iteration.
Without a resampler fix this test fails under valgrind/ASAN with a
heap-buffer-overflow (Invalid write of size 4, 2 bytes past the end).
Signed-off-by: Ivan Grigorev <ivangrigoriev@meta.com>
Before commit e96d90eed6 lavu/internal.h
contained redefined various discouraged/forbidden functions to induce
compilation failures upon use, like e.g.
#define malloc please_use_av_malloc
In order to use these functions, some files had to undefine these
macros. This commit removes the remaining pointless undefs.
Reviewed-by: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
