An assembler able to cope with AVX instructions is now required.

All modern assemblers have this capability.  Older NASM versions
that lack the capability produce code that crashes at runtime,
so it's better to error out during the build process instead.

CC: libav-stable@libav.org

Also reorder some other #include when applicable.

The alternative to zeroing on init is setting the corrupted flag in
all cases where pal_pic is not fully written, at the cost of added
complexity.

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

This reduces the local difference to the x264 upstream version.

This fixes use of uninitialized values when the FLAC encoder uses the
2-level, 4-level, and 8-level search methods. Fixes failure of the
fate-flac-24-comp-8 test when run using valgrind.

Fixes Bug 385

Also move a misplaced line from the 9_beta2 section to <next>

Previously the high end byte was always set to zero. Also get
rid of an unnecessary multiplication (which in practice couldn't
overflow) before shifting.

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

The CQ mode was introduced in libvpx 0.9.6.

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

This allows getting rid of redundant checks later in the codec
specific init functions.

Move the check to before actually initializing the decoder lib,
to simplify error handling.

This fixes a case of returning a value from a void function, present since
d40dab90.

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

YASM accepts labels without colons, but NASM issues warnings.

This will distinguish FLAC 16-bit tests from FLAC tests with other bit
depths.

Also, templatize the functions for 16-bit and 32-bit sample range. This will
be used for 24-bit FLAC encoding.

Needed to avoid integer overflows for 24-bit encoding.

This is much faster than calculating the MD5 one sample at a time.

This fixes compilation with --disable-everything and components enabled.

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

Documentation includes only the externally visible API of the installed
headers.

Based on a patch by Anton Khirnov <anton@khirnov.net>.

Signed-off-by: Anton Khirnov <anton@khirnov.net>