Adds a tag to indicate the source/device used for the capture.

Already maps it in exif and adds tests.

API: GST_TAG_CAPTURING_SOURCE

https://bugzilla.gnome.org/show_bug.cgi?id=631773

Adds a tag to inform what mode was used by a camera to calculate
the picture capturing exposure

Also adds mapping to exif and tests

API: GST_TAG_CAPTURING_METERING_MODE

https://bugzilla.gnome.org/show_bug.cgi?id=631773

Adds new tag for tagging sharpness processing used
when capturing an image. Also maps it in the exif
tags.

Tests included.

API: GST_TAG_CAPTURING_SHARPNESS

https://bugzilla.gnome.org/show_bug.cgi?id=631773

Make sure the marshaller function isn't exported. As it was
never in a public header file, this should be fine.

Apparently noinst implies dist.

There's no reason to make the marshaller public API. Don't install
pbutils-marshal.h header file and use prefix that makes sure the
symbol doesn't get exported.

Also fix typo in DISTCLEANFILES.

Has fixes for volume, among other things.

This is planar 4:2:0 YUV plus non-subsampled alpha plane.

From 5a668bf to 7bbd708

Field should be "stream-format", not "stream-type".

Extend AAC typefinder to recognize LOAS stream as specified by
ISO/IEC 14496-3:2009.

https://bugzilla.gnome.org/show_bug.cgi?id=623918

This makes calling gst_pad_get_pad_template() work.

Updates datetime functions to latest APIs in core

https://bugzilla.gnome.org/show_bug.cgi?id=624949

https://bugzilla.gnome.org/show_bug.cgi?id=624949

Only keep the last valid granulepos we see when scanning the last
pages. It is possible that the last page that we inspect has a -1 granulepos, in
which case we want to keep the previous valid time instead.

Fixes #631703

Adds missing lib to vorbis check tests makefile

uridecodebin behaves like a source, let's mark it as a source

Since this is just a debugging feature and libtheora will usually not be
compiled with that option enabled, we should maybe just hide these properties,
since they won't work anyway, and avoid confusing warnings.

Also rename properties to make them less cryptic.

https://bugzilla.gnome.org/show_bug.cgi?id=628488

The theora decoder can overlay debugging information on the output
video. This functionality is only available if libtheora has been
compiled with --enable-telemetry. For more details see:

http://people.xiph.org/~xiphmont/demo/theora/demo2.html

Based on original patch by Michael Smith <msmith at xiph org>

https://bugzilla.gnome.org/show_bug.cgi?id=628488

Fixes bug #631774.

Files with a skeleton, or other files with a stream that ends before the end of
the chain would start playing from the end of the chain when trying to seek with
a negative rate at a position between the end of any stream and the end of the
chain.

This is due to the loop in _do_seek() assuming that pages will be encountered
for all streams shortly after the place where we want to seek, as found by
do_binary_search().

In the first iteration of the loop, stream ends are now checked against the
time of the current page.

From c4a8adc to 5a668bf

This allows the various _get_*_description() methods to be more
forgiving with the provided caps.

From 5e3c9bf to c4a8adc