Since 2.1 there is no way to set a global default volume. Instead it is now
required to set it independently for each audio output.

Regression from cae4f1c6.

The video output core does not deal with filters retaining pictures.
Also, this leaves more pictures for the decoder in the decoder pool.

This enables releasing the VLC picture while keeping the VDPAU surface
for internal usage.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Close #8925

This fixes the output sample rate when decoding with
OMX.Nvidia.aac.decoder (such as on nexus 7), possibly also for other
audio codecs on the same class of devices, possibly also for audio
codecs on other OMX implementations.
Signed-off-by: Martin Storsjö <martin@martin.st>

automake 1.12 changed the default for tests, requiring projects
that need serial test execution to add an option for setting this.
This option isn't available on automake 1.11, so those projects
became incompatible with automake 1.11 once they got ready for 1.12.
This obviously isn't an issue in most cases where the prebuilt
configure is good enough.

Since we don't run the tests in contribs, just remove this option
for now, to allow building with both automake 1.11 and 1.12.
Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes #8821

Close #8511

This supports brightness, contrast, saturation and hue.

(same as OpenGL shaders)

This will be used for deinterlacing.

This is for advanced filtering on the GPU. So far, only progressive
scan is implemented.