This allows to chose something else than input-selector
for multiple audio/video/text streams, e.g. an adder could
be used for audio.

It is needed for example to implement some of the more
advanced HTML5 video features.

https://bugzilla.gnome.org/show_bug.cgi?id=698851

And remove leftover debug code

Add the actual decoder/parser/etc caps at the very end to
make sure we don't cause empty caps to be returned, e.g.
if a parser asks us but a decoder is required after it
because no sink can handle the format directly.

https://bugzilla.gnome.org/show_bug.cgi?id=700967

We now only check sinks and factories of the corresponding media
type. It doesn't make sense to pass audio/subtitle caps to a video
decoder.

Otherwise we will only block after the serialized, non-sticky event
after the CAPS event or the first buffer. If we're waiting for another
pad to finish autoplugging after we got final caps on this pad, it
will mean that we will let the ALLOCATION query pass although the
pad is not exposed yet.

Instead of just trying the first possible resolution we're trying all
resolutions until one works.

We can just use the NV12 functions, the only difference is the
vertical subsampling.

Run the chroma upsampler after unpack and the chroma subsampler
before pack for higher quality conversions and correct chroma siting.

Run the chroma subsampler before packing.

Add functions to up/downsample chroma in horizontal and vertical
directions. These functions work in-placeand are meant to be used on the
input/output of the pack/unpack functions.

Don't perform subsampling when packing but let this be done by a
separate subsampling step.

Operate on the provided pixels array instead of the temp array.

We have no way of tell the caller of the exact error (e.g. if we're flushing),
so will have to wait until the caller uses API that returns a GstFlowReturn,
for example when pushing this buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=700006

We have no way of tell the caller of the exact error (e.g. if we're flushing),
so will have to wait until the caller uses API that returns a GstFlowReturn,
for example when pushing this buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=700006

https://bugzilla.gnome.org/show_bug.cgi?id=690420

This reverts commit 0feecef2.

This is cleaner and faster.

https://bugzilla.gnome.org/show_bug.cgi?id=700770

This is cleaner and faster.

https://bugzilla.gnome.org/show_bug.cgi?id=699744

Be sure that memory is unmapped before releasing it.

https://bugzilla.gnome.org/show_bug.cgi?id=700411

These should really be unsigned.

When X screen return a depth = 32 with bpp = 32, the alpha mask
must be correctly set to have a known GStreamer video format.
X visual structure doesn't provide the alpha mask information,
but we can find it from the others masks.

https://bugzilla.gnome.org/show_bug.cgi?id=700413

https://bugzilla.gnome.org/show_bug.cgi?id=700377