Distributors and integrators nowadays have less problems by leveraging
pkg-config files than having to set custom CFLAGS and LDFLAGS.

Check for an instruction that causes the (very old) Apple GCC 4.2
to error out ("unrecognizable insn").

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

The options is useful to build position-independent executables on
hardened systems (e.g. Android L and Gentoo Hardened).

The library does not have external dependencies.

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

This obviates a dependency of the LJPEG encoder on mpegvideo.

The language and the program that consumes the language are not the same.

eatqi uses more than just the shared mpegvideo bits.

It has not been properly maintained for years and there is little hope
of that changing in the future.
It appears simpler to write a new replacement from scratch than
unbreaking it.

It is also not final yet, so require -strict experimental.

Requires a bump to version 17.

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

Clang's integrated assembler (after 3.4) does not yet support the
'.altmacro' directive which is only used in arm asm. Support is planned:
http://llvm.org/bugs/show_bug.cgi?id=18918

Not supported by Clang's integrated assembler. Since it just adds
debug information it can safely omitted.

Move the GNU as check before the arch specific asm checks since the .dn
check requires gas compatible assembler.

Disable the VC-1 motion compensation NEON asm which is the only part
using that directive. The integrated assembler in the upcoming clang 3.5
does not support .dn/.qn without plans to change that. Too much effort
to implement it while it is rarely used.

http://llvm.org/bugs/show_bug.cgi?id=18199.

Also shorten HuffYUV context member names to avoid clutter.

Also shorten HuffYUV context member names to avoid clutter.

Removes an ugly $(if) to avoid conflicts with $(FFLIBS-) in the
top-level MAkefile.

Clang Undefined Behaviour Sanitizer seems to make non-constant constant
expressions, making the compilation fail when they are used within
inline assembly if no optimization is requested.

Add -O1 to the cflags to hide the misbehaviour.

Bug-Id: 683

Initial implementation by Andrew D'Addesio <modchipv12@gmail.com> during
GSoC 2012.

Completion by Anton Khirnov <anton@khirnov.net>, sponsored by the
Mozilla Corporation.

Further contributions by:
Christophe Gisquet <christophe.gisquet@gmail.com>
Janne Grunau <janne-libav@jannau.net>
Luca Barbato <lu_zero@gentoo.org>

Instead of setting FFLIBS in each library Makefile configure
exports FFLIBS-$library in config.mak.

It leverages the new hwaccel 1.2 features:

- get_buffer2 is never called
- the internal context is automatically initialized/deinitialized

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

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

Move the dxva check after the dependencies have been detected, make sure
the ole32 library exists.

Fixes build on non-Windows.

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

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

The first line of the "armcc --vsn" output in one version is
"Product: ARM Compiler 5.04".

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

Introduce the `font` option and make it optional to pass a fontfile.

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

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

Further performance improvements and security fixes by
Vittorio Giovara, Luca Barbato and Diego Biurrun.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>