A dependent slice cannot have address 0.
Prevent an out of array bound load in ff_hevc_cabac_init().

Sample-Id: 00001406-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

According to my understanding of T-REC-H.265-2013044 chapter 8.6.1.

Sample-Id: 00001438-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

And export the information in field_order.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Default to 1/25.

Test sample is made from the sample in Bug-Id: videolan/7411

The idct implementation cannot be changed after the quantization matrices
are read since it use a different permutaion.

Bug-Id: videolan/7411

Due to what looks like an off-by-one error 60 * 12 * 1001 / 12 * 1001
is not tested as standard frame rate in avformat_find_stream_info().

Makes it easier to recreate an AVCodecContext for ATRAC3+ decoding,
which is needed in multimedia frameworks, as well as in general cases
where demuxing and decoding are separate entities.

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

Should fix crashes or corrupt output on pre-SSE2 CPUs when they were
using SSE2-code (e.g. AMD Athlon XP 2400+ or Intel Pentium III) in
hfix or hvar single-edge (left/right) extension functions.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

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>