Work around yasm's inefficiency with handling large numbers of variables
in the global scope.

Assembly based on code by Henrik Gramner and Loren Merritt.

We don't need to wastefully allocate quant tables above QP_MAX_SPEC; they're
never used.

Also update AUTHORS file and my e-mail address in the headers of various files.

It's an old stand-alone application that isn't relevant to x264.

It's not possible to seek in pipes, so if we want to skip frames we have to read and
discard unused ones. It's pointless to do bit-depth upconversions in those frames.

Caused if the timebase is not specified in stats file. Found by Clang.

Conflicts:
	Makefile
	common/common.h
	common/frame.c
	common/set.h
	configure
	encoder/encoder.c
	encoder/set.c

It probably wasn't used or maintained for last few years.

Also add some compatibility fixes.

Allows generation of hard-CBR streams without using NAL HRD.
Useful if you want to be able to reconfigure the bitrate (which you can't do
with NAL HRD on).

Do the reconfig when the next frame's encode begins.
Fixes some rare crashes with frame-threading and encoder_reconfig.

~100 cycles faster with subme>=9

Only warn if underflow occurs for reasons other than CRF-max, as CRF-max
implies that VBV underflow is desired by the user.

This makes more sense for future implementations of templates with zmm registers.

It was used as a workaround for a bug that only existed in the GPAC repository
for a few weeks back in 2010. There's no reason to keep it anymore.

If only a static library is built, the user of the library that just
tries to link to the lib using the flags provided by pkg-config
might not know that only a static lib exists and that he'd have to
pass --static to pkg-config to get the internal dependencies to
be able to link the library.

For a shared build, the internal dependencies are kept in Libs.private
as before.

This matches how libav's pkg-config files are generated.

If FFMS_ReadIndex is used with an empty index file it gets stuck in an infinite loop instead of returning NULL
like it's supposed to do on failure. Explicitly check if the file is empty before calling it as a workaround.

Caused crashes under gdb in Windows and might cause other unknown problems.