Signed-off-by: Anton Khirnov <anton@khirnov.net>

This fixes building in PIC mode with gas. The examples in the gas
manual showed using a # here even though gas itself actually didn't
support that syntax (and the gas test suite only tests it without
the extra hash sign).

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>

First free metadata, then the side data it is contained in.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

This allows reusing it from multiple files.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

This fixes compilation with MSVC.

Signed-off-by: Martin Storsjö <martin@martin.st>

Add AV_PKT_DATA_DISPLAYMATRIX and AV_FRAME_DATA_DISPLAYMATRIX as stream and
frame side data (respectively) to describe a display transformation matrix
for linear transformation operations on the decoded video.

Add functions to easily extract a rotation angle from a matrix and
conversely to setup a matrix for a given rotation angle.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

The current hwaccel is broken and cannot be fixed in a compatible
way. It will be deprecated and replaced with a new one.

Fix compilation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This fixes usage of AV_TIME_BASE_Q in C++ applications, which
cannot use compound literals directly in their code.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This adds the reversed byte-order version of the ANSI CRC16.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Based on a patch by James Almer <jamrial@gmail.com>.

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

According to the ReplayGain spec, the peak amplitude may overflow and may result
in peak amplitude values greater than 1.0 with psychoacoustically coded audio,
such as MP3. Fully compliant decoders must allow peak overflows.

Additionally, having peak values in the 0<->UINT32_MAX scale makes it more
difficult for applications to actually use the peak values (e.g. when
implementing clipping prevention) since values have to be rescaled down.

This patch corrects the peak parsing by removing the rescaling of the decoded
values between 0 and UINT32_MAX and the 1.0 upper limit.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Add the missing define.

And move outside the wrong doxygen group.

And provide extended coloring capabilities for debugging.
The default colors do not change in 256 more to keep
supporting people using Black on White, White on Black and
Solarized terminals.

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

Arch-specific optimizations are handled this way everywhere else.

It is not supported by all compilers on FATE. Fixes "some test were
skipped" errors.

This fixes fate-float_dsp-test on RVCT 4.0.

Signed-off-by: Martin Storsjö <martin@martin.st>

Ported from arm NEON and added vector_dmul_scalar.

Functions between 1.5 and 5 times faster than the C implementations
using Apple's clang-503.0.19 on A7.

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

Not guaranteed to be in nanosecond resolution. On iOS 7 the duration
of one tick is 125/3 ns which is still more than an order of magnitude
better then microseconds.

Replace decicycles with the neutral UNITS. Decicycles is strange but
tenths of a nanosecond and unspecific "deci"-ticks for mach_absolute_time
is just silly.

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

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

Based on x264 code

Signed-off-by: James Almer <jamrial@gmail.com>

Based on x264 code

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Based on e3fec3f095 for arm.

vector_fmul and vector_fmac_scalar are guaranteed that they can process in
batch of 16 elements, but their SSE versions only does 8 at a time.

Therefore, unroll them a bit.
299 to 261c for 256 elements in vector_fmac_scalar on Arrandale/Win64.

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

It was never used since it was added and the things it was intended for
are now exported differently.

Also add warning comment about threading implementations without matching
atomics implementation to the atomics fallback implementation.