nasm versions prior to 2.09 have trouble assembling some of our AVX code.
Protect these sections by preprocessor macros to allow compilation to pass.

av_freep(swsContext) will leak all memory potentially
allocated within the swsContext.

That means it won't be allocated when not needed. Alongside
this, it fixes valgrind/fate-detected memory leaks.

Instead of -fflags rtphint, set -movflags rtphint instead.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

If the secondary assembler is in use report the proper name

The connect() timeout can take minutes, gets misreported as EIO and
isn't interruptible.

Deprecate corresponding AVFormatParameters field.

This will be useful in the following commit.

This will be useful in the following commit.

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

The volatile qualifiers are not needed on these statements as
their effects are fully specified by constraints.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

Fixes build.

Signed-off-by: Mike Williams <mike@mikebwilliams.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The flag is required for some C99 math functions to be declared.