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

Some content requires an higher number of slices in order to
render properly.

Rise the number to 1024 and warn if ever it exceeds.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The SVQ3 decoder reuses large parts of the H.264 decoder so it
makes no sense to enable the former but not the latter.

Also drop unnecessary h263.o object from SVQ3 decoder object list.

Some optimized functions reference optimized symbols, so the functions
must be explicitly disabled when those symbols are unavailable.

Based on a patch by Russel King <rmk+libav@arm.linux.org.uk>

Bug-Id: 646
CC: libav-stable@libav.org

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

This requires adding includes to other files that relied on these being
included implicitly.

This helps in disentangling lavf and lavc too.

Avoid a division by 0 in ff_mpeg4_set_one_direct_mv.

Sample-Id: 00000168-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

avcodec_flush_buffers() must release all internally held references
according to its documentation, for which all the threads need to be
flushed.

CC:libav-stable@libav.org
Bug-Id: vlc/9665

Almost all of the code is shared so there is little point in
enabling one decoder/encoder without the other.

Almost all of the code is shared so there is little point in
enabling one decoder without the other.

These codecs compile all of the MJPEG code anyway, so there is little
point in not enabling the MJPEG decoder directly. This also simplifies
the dependency declarations for the MJPEG codec family.

This codec compiles all of the SP5X code anyway, so there is little
point in not enabling the decoder directly. This also simplifies the
dependency declaration for the AMV decoder.

This is the name used in the specifications.

Also comment all previous profiles.

AAC LOAS can have new audio config objects in the stream itself.

Make sure the decoder reconfigures itself when the first one arrives
midstream.

Bug-Id: 644
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The vector dequantization has a test in a loop preventing effective SIMD
implementation. By moving it out of the loop, this loop can be DSPized.

Therefore, modify the current DSP implementation. In particular, the
DSP implementation no longer has to handle null loop sizes.

The decode_hf implementations have following timings:

For x86 Arrandale:
        C  SSE SSE2 SSE4
win32: 260 162  119  104
win64: 242 N/A   89   72

The arm NEON optimizations follow in a later patch as external asm. The
now unused check for the y modifier in arm inline asm is removed from
configure.

Based on a patch from Christophe Gisquet.

Unrolling of the m == 0 case avoids a possible use of the uninitilized
value sum when s->predictor_history is not set. I failed to find a
sample for it. It also reduced the cycle count from 220 to 150 on
sandy bridge, x86_64 linux, gcc 4.8.2 compared to his patch.

Timings for Arrandale:
          C    SSE
win32:  2108   334
win64:  1152   322

Factorizing the inner loop with a call/jmp is a >15 cycles cost, even with
the jmp destination being aligned.

Unrolling for ARCH_X86_64 is a 20 cycles gain.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

This change is inspired by x86 asm where it frees a register.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Results for Arrandale/Windows:
32: 1670 -> 316
64:  728 -> 298

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

The scaling factor is constant so it is faster to scale the
FIR coefficients in the tables during compilation.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

None of the encoder bits are arch-optimized.

No permutation is necessary for the FDCT.

This also avoids a macro name clash and related warning on ARM.

These are already covered through dependencies specified in configure.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

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

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

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

Framerate is now a sane rational instead of an integer, and
inputDepth is changed to what it actually is.

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

beta_offset is pre-multiplied by 2.

f777504f64 changed a - in +

CC: libav-stable@libav.org

And use the value from the specification.

Sample-Id: 00000451-google
Found-by: Mateusz j00ru Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Based on e3fec3f095 for arm.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>