The same buffer with saved data is used later in LPC reconstruction, so
it should have some head space for LPC history.

This fixes Bugzilla #327:

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

Some calculations were changed in b6a3849 to use mmsize, which was not correct
for the AVX version, which uses INIT_YMM and therefore has mmsize == 32.

Fixes Bug 341.

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

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

This allows building dct-test even if aandcttab.o is not pulled in
by any enabled codec.  The DCT with which these tables are used does
not use them directly, so building it without the tables is possible.

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

Reordering the members in this struct reduces the holes required
to maintain alignment.  With this order, the only remaining, and
unavoidable, hole is 3 bytes following left_nnz.

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

These functions are not faster than other mmx implementations on
any hardware I have been able to test on, and they are horribly
inaccurate.  There is thus no reason to ever use them.

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

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

At the moment it only does BGR24, but I plan to add the rest after.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

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

The standard syntax requires two destination registers for
LDRD/STRD instructions.  Some versions of the GNU assembler
allow using only one with the second implicit, others are
more strict.

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

64-bit CPUs always have SSE available, thus there is no need to compile
in the 3dnow functions. This results in smaller binaries.

This will allow adding dca.c with tables used from other files.

This fixes compilation with YASM disabled.

This completes the conversion of h264dsp to yasm; note that h264 also
uses some dsputil functions, most notably qpel. Performance-wise, the
yasm-version is ~10 cycles faster (182->172) on x86-64, and ~8 cycles
faster (201->193) on x86-32.

These decoders use a special non-MPEG2 IDCT.  Call it directly
instead of going through dsputil.  There is never any reason
to use a regular IDCT with these decoders or to use the EA IDCT
with other codecs.

This also fixes the bizarre situation of eamad and eatqi decoding
incorrectly if eatgq is disabled.

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

There is no sense in pulling in this monster struct just for
a handful of fields.  The code does not call any functions
expecting an MpegEncContext.

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

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

Without this, cglobal will expand "z" to "zh" to access the high byte
in a register's word, which causes a name collision with the ZH(x) macro
further up in this file.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

Fixes overread

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

This fixes out of array writes

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

64-bit CPUs always have SSE2, and a SSE2 version exists, thus the MMX
version will never be used.

All x86-64 CPUs have SSE2, so the MMX version will never be used. This
leads to smaller binaries.

This will give a clearer error message when the error is caused by a
truncated packet.

Reversing the lpc coefficient order simplifies indexing in the filter.