Fixes issue1716

Originally committed as revision 21559 to svn://svn.ffmpeg.org/ffmpeg/trunk

about 0.5% faster MBAFF loop filtering

Originally committed as revision 21552 to svn://svn.ffmpeg.org/ffmpeg/trunk

This allows to get rid of the macho64 specific hack that moves them
to rodata (with worse cache behaviour) and avoids textrels which
e.g. Gentoo does not allow for x86_64 libraries.

Originally committed as revision 21551 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21545 to svn://svn.ffmpeg.org/ffmpeg/trunk

No meassureable speed effect.

Originally committed as revision 21541 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21540 to svn://svn.ffmpeg.org/ffmpeg/trunk

about 0.5% faster loop filtering

Originally committed as revision 21539 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21536 to svn://svn.ffmpeg.org/ffmpeg/trunk

Reviewed and corrected by myself because there were no other volunteers in the
last weeks.

Originally committed as revision 21531 to svn://svn.ffmpeg.org/ffmpeg/trunk

post-processing, and add a new FF_QSCALE_TYPE_VP56 for this.

Originally committed as revision 21529 to svn://svn.ffmpeg.org/ffmpeg/trunk

expressed in a AMRFixed structure and handled by ff_set_fixed_vector().

Originally committed as revision 21528 to svn://svn.ffmpeg.org/ffmpeg/trunk

http://xiph.org/vorbis/doc/Vorbis_I_spec.html#x1-800004.3.9

Originally committed as revision 21527 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Laurent Aimar  fenrir _at_ videolan _dot_ org

Originally committed as revision 21521 to svn://svn.ffmpeg.org/ffmpeg/trunk

buffer size vs. frame size errors.

Originally committed as revision 21519 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoids a (incorrect) "possibly used uninitialized" warning, no measurable
speed difference.

Originally committed as revision 21518 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Rafaël Carré, rafael D carre A gmail

Originally committed as revision 21517 to svn://svn.ffmpeg.org/ffmpeg/trunk

5% faster on Intel Atom with gcc 4.4.1 (performance is unchanged
if using av_always_inline).

Originally committed as revision 21516 to svn://svn.ffmpeg.org/ffmpeg/trunk

smaller without any speed loss.

Originally committed as revision 21514 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21510 to svn://svn.ffmpeg.org/ffmpeg/trunk

This allows freeing the parser memory in the thread_context freeing loop.

Patch by Rafaël Carré gmailify(rafael, carre)

Originally committed as revision 21508 to svn://svn.ffmpeg.org/ffmpeg/trunk

1% faster MBAFF decoding overall, maybe ~0.1% faster for the cathedral sample.

Originally committed as revision 21507 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21506 to svn://svn.ffmpeg.org/ffmpeg/trunk

~20 cpu cycles faster loopfilter

Originally committed as revision 21505 to svn://svn.ffmpeg.org/ffmpeg/trunk

quite a bit faster

Originally committed as revision 21504 to svn://svn.ffmpeg.org/ffmpeg/trunk

~6% faster (slow path) loopfilter (should be ~2% overall)

Originally committed as revision 21503 to svn://svn.ffmpeg.org/ffmpeg/trunk

This is a hair slower (0.15% maybe) but i really dont want to have the
identical code duplicated 3 times because gcc adds odd threaded jumps with
register reshuffling and register safe/restore.

Originally committed as revision 21502 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21497 to svn://svn.ffmpeg.org/ffmpeg/trunk

to split out

Originally committed as revision 21496 to svn://svn.ffmpeg.org/ffmpeg/trunk

This prevents the issue with having to switch between slow and
fast code paths in each row.
0.5% faster loopfilter for cathedral

Originally committed as revision 21495 to svn://svn.ffmpeg.org/ffmpeg/trunk

a few cycles faster

Originally committed as revision 21494 to svn://svn.ffmpeg.org/ffmpeg/trunk

This allows many things to be simplified away.
h264 decoder is overall 1% faster with a mbaff sample and
0.1% slower with the cathedral sample, probably because the slow loop
filter code must be loaded into the code cache for each first MB of each
row but isnt used for the following MBs.

Originally committed as revision 21493 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Rafaël Carré, rafael D carre A gmail

Originally committed as revision 21489 to svn://svn.ffmpeg.org/ffmpeg/trunk

These tables are accessed as uint32 so they must be suitably aligned.

Originally committed as revision 21488 to svn://svn.ffmpeg.org/ffmpeg/trunk

finding the 4-byte signature.
Add a check that ignores the signature if we do not have enough previous
data to go back at least 7 bytes.

Originally committed as revision 21487 to svn://svn.ffmpeg.org/ffmpeg/trunk

message is pointless to ordinary users and is printed once per frame.

Originally committed as revision 21486 to svn://svn.ffmpeg.org/ffmpeg/trunk

Log:
	Set CODEC_CAP_SUBFRAMES for adpcm decoders

	This makes ffmpeg stop printing millions of
	  Multiple frames in a packet from stream 0
	when decoding adpcm.
Reason: adpcm has no subframes, the flag does not belong there

Originally committed as revision 21481 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21479 to svn://svn.ffmpeg.org/ffmpeg/trunk

~4 cpu cycles speedup

Originally committed as revision 21474 to svn://svn.ffmpeg.org/ffmpeg/trunk

Fabian Greffrath base64_decode(PGZhYmlhbkBncmVmZnJhdGguY29tPg==).

Originally committed as revision 21473 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21470 to svn://svn.ffmpeg.org/ffmpeg/trunk

enough to justify the messy interleaving.

Originally committed as revision 21469 to svn://svn.ffmpeg.org/ffmpeg/trunk

60 cpu cycles speedup

Originally committed as revision 21467 to svn://svn.ffmpeg.org/ffmpeg/trunk

be skiped.

Originally committed as revision 21465 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21464 to svn://svn.ffmpeg.org/ffmpeg/trunk

This function/macro returns the high half of the unsigned 64-bit
product of two unsigned 32-bit operands.

Originally committed as revision 21463 to svn://svn.ffmpeg.org/ffmpeg/trunk

244->160 cycles on core2

Originally committed as revision 21462 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21460 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21459 to svn://svn.ffmpeg.org/ffmpeg/trunk

what is needed and its faster too.

Originally committed as revision 21458 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21457 to svn://svn.ffmpeg.org/ffmpeg/trunk