Fixes ticket #2633.

Tested-by: Michael Cinquin

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Update rgb24 fate test as it no longer writes image in big endian
format.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

This makes -t sample-accurate for audio and will allow further
simplication in the future.

Most of the FATE changes are due to audio now being sample accurate. In
some cases a video frame was incorrectly passed with the old code, while
its was over the limit.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

We have to make some symetric changes elsewhere as this increases
the precission with which samples are stored.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Rewrite 10 bit dpx decoder to decode into GBRP10 color space
instead of converting to RGB48.
Add 12 bit decoder to decode into GBRP12 color space.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

This avoids breaking fate every time the lavc version is bumped.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This avoids fate breakage from bumping version.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>