* qatar/master:
  4xm: fix invalid array indexing
  rv34dsp: factorize a multiplication in the noround inverse transform
  rv40: perform bitwise checks in loop filter
  rv34: remove inline keyword from rv34_decode_block().
  rv40: change a logical test into a bitwise one.
  rv34: remove constant parameter
  rv40: don't always do the full prev_type search
  dsputil x86: revert a test back to its previous value
  rv34dsp x86: implement MMX2 inverse transform
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket #1220.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It is possible that just extending the RMMuxContext.streams
array would avoid it.
It is also possible that two audio streams will fail to mux
correctly as well, though at least it should not crash for
this reason.
I do not feel like checking either of these.
This patch fixes trac issue #1022 (at least it makes it
exit with a proper error message instead of crashing).
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Also fixes an (incorrect) "control reaches end of non-void function"
warning with some compilers.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Indexing outside arrays is invalid and breaks with gcc 4.8.
Signed-off-by: Mans Rullgard <mans@mansr.com>

* qatar/master:
  h264: new assembly version of get_cabac for x86_64 with PIC
  h264: use one table instead of several for cabac functions
  h264: (trivial) remove unneeded macro argument in x86/cabac.h
  libschroedingerdec: check malloc
  segment: reorder seg_write_header allocation
  avio: make avio_close(NULL) a no-op
  mov: Parse EC3SpecificBox (dec3 atom).

Conflicts:
	libavcodec/cabac.c
	libavcodec/x86/cabac.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The field is filled with the codec context information.

The field is filled with the codec context information.

FIXME need a minor version bump.

Down from 95 kcycles to 93 (including all called functions).
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Force-inlining increases object size by 8kB and causes a 2% slowdown.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

is_block2 was always 0, so just remove it, and change accordingly the code.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

120->100 cycles.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

This adds a hand-optimized assembly version for get_cabac much like the
existing one, but it works if the table offsets are RIP-relative.
Compared to the non-RIP-relative version this adds 2 lea instructions
and it needs one extra register.
There is a surprisingly large performance improvement over the c version (more
so than the generated assembly seems to suggest) just in get_cabac, I measured
roughly 40% faster for get_cabac on a K8. However, overall the difference is
not that big, I measured roughly 5% on a test clip on a K8 and a Core2.
Hopefully it still compiles on x86 32bit...
Now that only one table is used, there's some chance even darwin as compiles
this (apparently the label arithmetic used previously doesn't work if it
involves symbols defined in a different file, thanks to Ronald S. Bultje for
helping me with this).
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The reason is this is easier for PIC code (in particular on darwin...).
Keep the old names as pointers (static in cabac_functions.h so gcc
knows these are just immediate offsets) so the c code can nicely stay the same
(alternatively could use offsets directly in the functions needing the
tables). This should produce the same code as before with non-pic and better
code (confirmed) with pic.

The assembly uses the new table but still won't work for PIC case.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

not used outside the cabac test functions (which probably means it's
a bad test if it doesn't use the same tables as the real functions?)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Commit 356ee8d7 caused the initial inversion.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

141 cycles down to 51.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

this hunk was merged in 8b97ae64 and cbf767a8 although the check was there a
few lines above since cdced09e. I removed the first check to reduce the differences
to libav.
Signed-off-by: Jean First <jeanfirst@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The call to the next filter_sample will likely unref the
current buffer, so it is not possible to read it afterwards.

This adds a hand-optimized assembly version for get_cabac much like the
existing one, but it works if the table offsets are RIP-relative.
Compared to the non-RIP-relative version this adds 2 lea instructions
and it needs one extra register. get_cabac() gets about 40% faster, for
an overall speedup of about 5%.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

The reason is this is easier for PIC code (in particular on darwin...).
Keep the old names as pointers (static in cabac_functions.h so gcc
knows these are just immediate offsets) so the c code can nicely stay the same
(alternatively could use offsets directly in the functions needing the
tables). This should produce the same code as before with non-pic and better
code (confirmed) with pic.

The assembly uses the new table but still won't work for PIC case.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

could be done for sse/3dnow too if someone wants
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

If the designated protocol is not found, return
AVERROR_PROTOCOL_NOT_FOUND instead of AVERROR(ENOENT).