From aa0d1d0 to 5e3c9bf

While the doc parser allows for certain variation, it is a good idea to not
use random characters here and there, but try to stick to the little markup
syntax there is.

Fixes build on macosx

This is only used with DISABLE_ORC.

Fixes #625944

Fixes #625944

Fixes #625944

Fixes #625944

Was painting using two different methods.

This reverts commit e6a041b6.

It's not a useless check, the signedness of "char" and "gchar" is
defined by the ABI.

A signed char is always < 128. Fixes a warning on macosx build.

Don't rely on too new symbols, we only depend on 2.20.

Add an example that demonstrates synchronized playback and capture.

Simple bar with foreground color on the background color

use gst_check_drop_buffers in videotestsrc to
clear the global buffers list.

Use UYVY for unit tests, it's exactly the same as Y422.
(which is currently disabled in videotestsrc)

Fixes #629672

This reverts commit 129af0d8.

This shouldn't be committed at all, it isn't ready and apparently
was in the wrong branch locally.

Binding generators apparently need this as they can't really know
that the callback is guaranteed to be called exactly once and that
the user_data can be freed at the end of it.

Fixes bug #586570.

And deprecate the gulong versions.  This is to support platforms
where sizeof(unsigned long) < sizeof(void *).  Fixes #627565.

API: Add gst_x_overlay_set_window_handle()
API: Deprecate: gst_x_overlay_set_xwindow_id()
API: Add gst_x_overlay_got_window_handle()
API: Deprecate: gst_x_overlay_got_xwindow_id()
API: Add GstXOverlay::set_window_handle()
API: Deprecate: GstXOverlay::set_xwindow_id()

Replace moving-color-bars pattern with smpte100, and change
moving-speed to horizontal-speed.  Default is now 0.  Add
a rotation stage to pattern building.
Allocate a temporary scanline for building images.  Remove
unused code.  Disable several patterns that we're unable to
test and probably never used.  Add other variants of bayer
sampling.  Convert some patterns to use videotestsrc_blend_line.

Scanlines are generated into AYUV/ARGB, then converted to the
various formats.

This pattern is moving the color bars with a given
speed. Negative speed is inverting the moving direction.

https://bugzilla.gnome.org/show_bug.cgi?id=628500

Convert downsampling to Orc.  Convert horizontal linear scaling
to Orc.  Combine horizontal and vertical scaling into one pass.