Only documents ac3 decoder options at this point.

Amplification of quiet sounds is enhanced.
Inspired by gbooker's A52Decoder.

Work around Yasm's inefficiency with handling large numbers of variables
in the global scope.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Also adjust some comment wording / spelling and reorder header #includes.

Fixes dependency file generation with gas-preprocessor.pl and clang.
Flags copied from GCC and tested with Apple's clang from Xcode 5 and
5.1 and clang 3.2, 3.3, 3.4 on Linux.

Add checks to the fast functions used with CODEC_FLAGS2_FAST and move
the check for all other functions to before the invalid memory is
accessed. Fixes https://trac.videolan.org/vlc/ticket/9713 with
CODEC_FLAGS2_FAST.

CC: libav-stable@libav.org

Added libavutil/timer.h include to all files with {START,STOP}_TIMER.

- The memcpy was completely wrong because
s->prob_ctx[s->framectxid].coef is a [4][2][2][6][6][3] array, whereas
s->prob.coef is a [4][2][2][6][6][11] array.
- The additional check was committed to ffmpeg by Ronald S. Bultje.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes a particular youtube video that I unfortunately can't share.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This fixes playback of mp3 streams in rtp/asf. This used to work
until c6f1dc8e, but mostly by coincidence.
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes builds with e.g. --disable-decoders --disable-encoders
--enable-encoder=mjpeg.
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes a leftover from e44d7c65.

This handles macroblock edges for the chroma components in the same way
as for the luma compoment for 4:4:4 streams. The Spec explicitly states
that the deblocking filter is not applied to edges at the boundary of
the picture.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

This prevents the default HOSTCFLAGS from getting clobbered by flags
passed to configure on the command line.

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

This does not yet include any actual AVX code
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

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

The default get_buffer2() implementation (and possibly some
user ones) does not allocate edges when this flag is set, which may
expose bugs in some decoders. Until the 10 release is out, it is safer
to remove this part.

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

If the function returns E_PENDING retry for a fixed number of times.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The T-REC-H.265-2013044 page 91 states it has to be in the range
[-(26 + s->sps->qp_bd_offset / 2), (25 + s->sps->qp_bd_offset / 2)].

The T-REC-H.265-2013044 page 79 states it has to be in the range
[-s->sps->qp_bd_offset, 51].

Sample-Id: 00001386-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

get_ue_golomb_long() returns an unsigned.

Sample-Id: 00001541-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

The src buffer should only contain values in the interval
[0, (1 << BIT_DEPTH) - 1].

Since shift = (BIT_DEPTH - 5), src[x] >> shift must be in
the interval [0, 31], so no clip is needed.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The reconstructed picture should always be clipped (see section 8.6.5),
previously we did not clip coding units where
cu_transquant_bypass_flag == 1.

Sample-Id: 00001325-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

And use unsigned datatypes.

Otherwise it would overflow.

Sample-Id: 00001315-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

Keep qp fields within the range.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This matches how its done for SPS/PPS.
Fixes null pointer dereference.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes an issue where the B-frame coding mode switches from interlaced
fields to interlaced frames, causing incorrect decisions in the motion
compensation code and resulting in visual artifacts.

CC: libav-stable@libav.org
Signed-off-by: Tim Walker <tdskywalker@gmail.com>