Before this change, it was possible to overflow pic_order_cnt_lsb and
generate a stream with invalid POC numbering.  This makes sure that
the field is large enough that a single IDR B* P sequence uses fewer
than half the available POC lsb values.

This change makes the configured GOP size be respected exactly -
previously the value could be exceeded slightly due to flaws in the
frame type selection logic.

Fixes a number of warnings of the type
libavutil/hmac.c:61:21: warning: assignment from incompatible pointer type

size_t is the correct type to use for sizes.

It is not called from outside h264dec.c anymore.

Cropping parameters are already checked for validity during SPS parsing,
no need to check them again.

When allocating stack space with an alignment requirement that is larger
than the current stack alignment we need to store a copy of the original
stack pointer in order to be able to restore it later.

If we chose to use another register for this purpose we should not pick
eax/rax since it can be overwritten as a return value.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Especially config.log is often read by users trying to compile Libav, so
its move should be documented.

When building DLLs with MSVC, CONFIG_STATIC is disabled (see
d66c52c2 for a more verbose explanation) since the built
object files can't be linked statically (which checkasm does).

This worked up until recently, only by luck.
Signed-off-by: Martin Storsjö <martin@martin.st>

Given it's the same API than DVXA2 I don't know why the same output was not
enabled for both.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

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

If a read fails, the current code will free the data but leave the size
non-zero. Make sure the size is zeroed in such a case.

CC: libav-stable@libav.org
Bug-Id: 1001
Found-By: Kamil Frankowicz
Signed-off-by: Sean McGovern <gseanmcg@gmail.com>

In H.264 section 8.2.1, we have that "The bitstream shall not contain
data that result in Min(TopFieldOrderCnt, BottomFieldOrderCnt) not
equal to 0 for a coded IDR frame".  This fixes the encoder to always
conform to this - previously the POC values formed an unbroken
sequence, not resetting to zero on IDR frames.
Signed-off-by: Mark Thompson <sw@jkqxz.net>

10-bit surface support was added in libva 1.6.2, earlier versions
support H.265 encoding in 8-bit only.

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

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

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

CC: libav-stable@libav.org

This fixes includedir lines in pkg-config files broken after 92db5083.

Use a tab instead of two spaces, skip the fate prefix for the test name.

This makes IGNORE line fit in even better with the other make printouts.
Signed-off-by: Martin Storsjö <martin@martin.st>

Otherwise the .rep file would still contain a signal instead of a
zero, even if the process returned success.
Signed-off-by: Martin Storsjö <martin@martin.st>

This can be useful to filter out noise in known-broken scenarios like
miscompilation by legacy compilers and similar.

Originally based on a patch by Diego Biurrun.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

The (required) version numbers disappeared after edb43487.

The codec id for SRT was changed and conditionals were not updated.

A negative chunk size is illegal and would end up used as
length for memcpy, where it would lead to memory accesses
out of bounds.
Found-by: Paul Cher <paulcher@icloud.com>

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

This moves work from the configure to the Make stage where it can
be parallelized and ensures that pkgconfig files are updated when
library versions change.

Bug-Id: 449

This moves work from the configure to the Make stage where it can
be parallelized and ensures that shared libraries are built with
the right version number in the filename.

This unclutters the top-level directory and groups related files together.

By default it is -1.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This fixes build failures for iOS, broken since cad42fad.
Signed-off-by: Martin Storsjö <martin@martin.st>