The decoder assigns channels using default channel configuration
for 5.1ch when it parses an ADTS frame header using consecutive
channel ids.

When a PCE comes, it reassigns channels using PCE configuration
using directly the ids provided. They can be arbitrary.

Always use consecutive channel ids to avoid decoding glitches due
spurious reconfigurations due the channel ids mismatch between the
two otherwise-identical channel maps.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

And make sure to check INTER_BLOCK as had been fixed by Michael
Niedermayer.

Reported-By: Andreas Cadhalpun
CC: libav-stable@libav.org

Checking this struct is a bit more natural for this dependency.
Signed-off-by: NMartin Storsjö <martin@martin.st>

These are only necessary once/if avconv gets support for this hwaccel.
While that obviously is desireable, we don't have it yet, and they
currently only are a distraction.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This fixes the side effect of printing the whole environment,
if no --env parameter was provided.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This was a regression introduced with d8ffb205.
Signed-off-by: NJames Almer <jamrial@gmail.com>
Signed-off-by: NMartin Storsjö <martin@martin.st>

Makes the life of the people already setting PKG_CONFIG_PATH simpler.

Useful to have `make config` work with custom pkgconf path.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Make possible to require a combination of
packages and/or pin specific versions.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

The only need to be listed if they are to be used in ifdefs from
within the code - config items used as dependencies only within
configure don't need to be exported.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This fixes dxva2 detection (i.e. correctly realizes that it isn't
available) for WinRT, where dxva2api.h does exist, but these definitions
are omitted (when targeting the API subsets).

Ideally we should rather check for e.g. DXVA2_ConfigPictureDecode,
but configure might fail to find that definition due to _WIN32_WINNT
not being set to the right value during configure. (libavcodec/dxva2.h
manually overrides the _WIN32_WINNT define.)

This allows removing hardcoded --disable-dxva2 from such build
configurations.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

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

Fixes build with some mingw-w64 versions, that have got the header
but not the interface declaration.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

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

mpz_import and mpz_export were added in GMP 4.1, in 2002.

This simplifies the DH code by clarifying that it only uses pure
bignum functions, no other parts of nettle/hogweed.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

Partially based on the work of Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>