In `st`, we can do this by using `ST_PARAM_*`. In the other code files,
just use `G_PARAM_STATIC_STRINGS` directly.
This is just a minor convenience to prevent a few unnecessary string
copies.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/646
Use our own locking and queue instead of async_queue.
Implement unlock and unlock_stop to make the create function return
FLUSHING. This is important to be able to pause the pipeline after some
error occured in the pipeline.
Implement start/stop to clear the queue and its state.
We where not setting a duration for the frames, which caused the resulting videos to
have a broken header.
Fix that by making the source a live source and setting the correct frame duration.
https://bugzilla.gnome.org/show_bug.cgi?id=688487
We need to indicate that our GStreamer source produces timestamped
frames, instead of the default, which is to produce a stream of bytes.
This is needed for correctness, and to avoid warnings for some
pipelines.
https://bugzilla.gnome.org/show_bug.cgi?id=669066
For development and demonstration purposes, it's neat to be able to
record a screencast of gnome-shell without any external setup.
Built-in recording can also give much better quality than is possible
with a generic desktop recording, since we hook right into the paint
loop.
src/shell-recorder.[ch]: A general-purposes object to record a Clutter
stage to a GStreamer stream.
src/shell-recorder-src.[ch]: A simple GStreamer source element (similar
to appsrc in the most recent versions of GStreamer) for injecting
captured data into a GStreamer pipeline.
src/test-recorder.c: Test program that records a simple animation.
configure.ac src/Makefile.am: Add machinery to conditionally build
ShellRecorder.
tools/build/gnome-shell-build-setup.sh: Add gstreamer packages
to the list of required packages for Fedora.
js/ui/main.js: Hook up the recorder to a MetaScreen ::toggle-recording
keybinding.
http://bugzilla.gnome.org/show_bug.cgi?id=575290
