Fixes https://bugzilla.gnome.org/show_bug.cgi?id=690591

The image type is not in the info structure in the sample,
not in the caps.

https://bugzilla.gnome.org/show_bug.cgi?id=691687

A return value of FALSE here indicates that we don't have control-values. In
0.10 we were returning the default value of the property. Now we don't fill an
array with defaults in the ControlBinding, but leave it up to the element to
handle this case.

Positive granulepos is valid, -1 granulepos is unset, and all
other negative granulepos are invalid.

Reported by Tim-Philipp Müller

https://bugzilla.gnome.org/show_bug.cgi?id=675761

https://bugzilla.gnome.org/show_bug.cgi?id=675761

https://bugzilla.gnome.org/show_bug.cgi?id=667317

https://bugzilla.gnome.org/show_bug.cgi?id=636753

API: gst_encoding_profile_get_file_extension()

https://bugzilla.gnome.org/show_bug.cgi?id=636753

Remove some macros that aren't needed any more.

https://bugzilla.gnome.org/show_bug.cgi?id=687817

to avoid the state change function from messing with the state of the elements
that we add.

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

Add the channel masks for all the extensible formats
Pass the number of channels instead of reading them from caps.

fixes #690591

We need to mark our clock as using some other clock source. Alsa source uses the
clock type to decide if it can use alsa driver timestamps or not.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=690465

We need to initialize this variable because we can't be sure that the subclass
will set it.

comparison is always true due to limited range of data type

Otherwise baseaudiosrc won't go into the error code path.

https://bugzilla.gnome.org/show_bug.cgi?id=690197

Use new ringbuffer ERROR state to make all the various
threads bail out correctly when the subclass posts an
error. It's a bit iffy to communicate this properly
between the different bits of code.

https://bugzilla.gnome.org/show_bug.cgi?id=690197

API: GST_AUDIO_RING_BUFFER_STATE_ERROR

https://bugzilla.gnome.org/show_bug.cgi?id=690197

The naming is not perfect, but at least we can keep the exact same behaviour as
before.

In SKEW mode, use next_sample == -1 to check for the first sample
when starting to read samples so it resyncs the ringbuffer and
timestamps are ok.

Suggestion from Teemu Katajisto <teemu.katajisto@digia.com>

https://bugzilla.gnome.org/show_bug.cgi?id=648359

The codec data blob we get from matroskademux with the SSA/ASS
init section is supposed to be valid UTF-8. If it's not, just
continue with the bits that are valid UTF-8 instead of erroring
out. We don't actually parse the init section yet anyway..

https://bugzilla.gnome.org/show_bug.cgi?id=607630

https://bugzilla.gnome.org/show_bug.cgi?id=625113

Don't loop forever if an USB audio device gets disconnected
while in use. Post an error message instead. This is not
enough yet though, we still need to make the base class
and/or the ring buffer bail out.

https://bugzilla.gnome.org/show_bug.cgi?id=690197

For later use.

https://bugzilla.gnome.org/show_bug.cgi?id=636753
https://bugzilla.gnome.org/show_bug.cgi?id=549111

Add a limit to the amount of queued bytes or messages we allow on the watch.

API: GstRTSPConnection::gst_rtsp_watch_set_send_backlog()
API: GstRTSPConnection::gst_rtsp_watch_get_send_backlog()

Block the pad before the resample and convertor elements to give the a chance to
negotiate new caps with the newly switched vis plugin.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=679976

https://bugzilla.gnome.org/show_bug.cgi?id=688785

https://bugzilla.gnome.org/show_bug.cgi?id=689740

Otherwise we just pass through the timestamps directly and don't
need to waste additional memory for them.

Fixes bug #689814.