Use VideoInfo to setup the conversion.
Use the color matrix from the video info.

Set default colorimetry info when not otherwise specified in caps.

From f1b5a96 to 1fab359

Cast the variables instead and fallback to %u

RGB8_PALETTED -> RGB8P
Fix the definition of paletted formats, store the palette in the second
plane.
Make sure we copy the palette correctly in gst_video_frame_copy()
Don't do alignment on the palette in videopool

From 92b7266 to f1b5a96

Instead of the temp directory. See:
http://0pointer.de/blog/projects/tmp.html

https://bugzilla.gnome.org/show_bug.cgi?id=677181

Remove obsolete code and use the video pack/unpack functions

From ec1c4a8 to 92b7266

From 3429ba6 to ec1c4a8

Remove obsolete code.
Remove the BlendInfo structure, we can do this better with GstVideoFrame
Use GstVideoFrame in the API
Prefix functions with gst_

Use the pack functions of the video library to construct the target
image.
Remove redundant functions.

c++ doesn't seem to like the typedef

Remove Y800 and Y16 wich are the same as GRAY8 and GRAY16_LE
Add const to the GstVideoFormatInfo when used in argument
Add GRAY8 and GRAY16 pack/unpack functions

Add support for supporting chroma subsampling correctly in the pack
function.
Fill in the pack and unpack functions for most formats.
Add some missing pack/unpack functions to the orc file.

Conflicts:

	ext/pango/gsttextoverlay.c
	ext/pango/gsttextoverlay.h

Add a flag argument to the pack and unpack function so that we can expand it
later when needed. We could for example prefer a High Quality pack/unpack
operation later.

Add a flag argument to the pack and unpack function so that we can expand it
later when needed. We could for example prefer a High Quality pack/unpack
operation later.

Add support for the I420_10 formats
Use the video frame api to get pixels and strides instead of our own
custom versions. Fixes the YVU9 format and probably some others.

Fix the offsets of v216 video
Add the complex flag to some formats

Fix the v216 format description

Add support for 10bit I420
Reorganize some macros, have separate plane and component macros, fix
a problem with YV12 in the process.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=665034

When we need to add borders, take the pixel stride into account to move to the
right horizintal offset.