The absence of this function will only give a less informative
string back from our fallback implementation of getnameinfo().
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Some systems require sys/time.h being explicitly included before
sys/resource.h.  The configure check already does this.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This causes make to exit with an error message if a nonexistent
dependency is specified rather than silently dropping the test.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This matches how it is actually being called.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This reverts commit def8c946.

After the major bump this is no longer necessary.

This reverts commit d15c21e5.

After the major bump this is no longer necessary.

In addition to the recent tables mess, the AVOption defaults behavior
changed, so an old lavc used with a new lavu will get completely messed
up defaults.

Fixes a crash when using a preset with stream copy.

CC: libav-stable@libav.org

This allocates 4 bytes less than the previous code if avctx->block_align is
a multiple of 4, but the extra 4 bytes is not really needed.

also does some minor refactoring.

This defines an AVCodec only if the corresponding CONFIG option is
enabled instead of using the broad CONFIG_ENCODERS/DECODERS.
Signed-off-by: Mans Rullgard <mans@mansr.com>