Commit graph

18 commits

Author SHA1 Message Date
Sebastian Dröge
2ace14f613 pango: Create one context per instance and remove class mutex
PangoCairo is thread-safe as long as the context and fontmap are not
shared between threads. Previously each subclass had its own context and
a class mutex for this reason, but apart from hurting performance this
was also not completely safe yet: the same fontmap might've been used by
different classes from different threads as the thread-default fontmap
(at time of class initialization) was used.
2018-08-27 15:41:31 +03:00
Mark Nauwelaerts
6d6a6bc3d8 textoverlay: optionally scale text to ensure proper display text aspect ratio
... by prescaling with an inverse aspect scaling as applied by video scaling
2017-05-21 12:46:36 +02:00
Lubosz Sarnecki
8a443784c4 basetextoverlay: Add new properties and alignment type for unclamped absolute positions
Introduces [x-absolute, y-absolute] properties
for positioning in +/- MAX_DOUBLE range.

Adds new (h/v)alignment type "absolute" where coordinates
map the text area to be exactly inside of video canvas for [0, 0] - [1, 1]:

[0, 0]: Top-Lefts of video and text are aligned
[0.5, 0.5]: Centers are aligned
[1, 1]: Bottom-Rights are aligned

https://bugzilla.gnome.org/show_bug.cgi?id=761251
2016-03-11 13:20:26 +00:00
Lubosz Sarnecki
8e07203798 textoverlay: Expose rendering dimensions as properties.
In order to detect graphical user input on the
textoverlay, the resulting rendering properties
need to be exposed to applications.

Fixes delayx property declaration.

https://bugzilla.gnome.org/show_bug.cgi?id=761251
2016-02-04 13:25:48 +01:00
Nicolas Dufresne
d4759f05f1 basetextoverlay: Use the extents rectangle for positioning
the extents rectangle is what you need to know to properly position
a buffer that has been rendered in a surface of the ink rectangle
size. This patch make the placement on par with the placement we had
before without having to over allocate.

This patch also enable placement for vertical rendering. Note that
the halginement, valighment and line-alignment default are set to
the previous default when this property is set. This is for backward
compatibility, you can change the value after setting vertical render.

https://bugzilla.gnome.org/show_bug.cgi?id=728636
2015-07-24 16:43:59 -04:00
Nicolas Dufresne
48f877ea91 basetextoverlay: Ensure meta coordinate are in stream scale
The GstVideoOverlayComposition meta coordinates should always be
in stream scale, regardless of the window size downstream. This
way the sink can always scale the composition if the window size
have changed after a buffer (with his meta) was rendered before.

https://bugzilla.gnome.org/show_bug.cgi?id=751157
2015-07-22 13:24:04 -04:00
Nicolas Dufresne
db81a73dba basetextoverlay: Reorder and cleanup class attribute
Also add a minimum amount of comment so we can understand what
is doing what.

https://bugzilla.gnome.org/show_bug.cgi?id=751157
2015-07-22 13:24:04 -04:00
Lubosz Sarnecki
91a615fa89 basetextoverlay: Receive window size event and adjust rendering
* cache window size event and update handle ratio
* init width with 1, don't use 0
* don't update overlay when receiving same window size
* receive window size from allocation query

https://bugzilla.gnome.org/show_bug.cgi?id=751157
2015-07-20 15:09:22 -04:00
Lubosz Sarnecki
f128666834 basetestoverlay: Pass down meta buffers from upstream that supports GstVideoOverlayComposition
This makes pipelines with multiple textoverlay elements possible.
The meta data is collected from the upstream textoverlay element,
merged into a new GstVideoOverlayComposition and passed down downstream.

https://bugzilla.gnome.org/show_bug.cgi?id=751157
2015-07-20 15:09:22 -04:00
Lazar Claudiu
f5906122fb basetextoverlay: add "draw-shadow" and "draw-outline" properties
https://bugzilla.gnome.org/show_bug.cgi?id=749823
2015-06-14 17:56:29 +01:00
Sebastian Dröge
46251a7bef pango: Add license/copyright header to header file 2014-12-15 10:35:35 +01:00
Mark Nauwelaerts
0325a3bdae pango: use ported GstVideoOverlayComposition functionality
Based on commits by Thibault Saunier <thibault.saunier@collabora.co.uk>
2012-06-28 18:16:25 +02:00
Andre Moreira Magalhaes (andrunko)
bac5fd4c6a textoverlay: Use an external lock
Conflicts:

	ext/pango/gsttextoverlay.c
	ext/pango/gsttextoverlay.h
2012-05-29 11:53:08 +02:00
Tim-Philipp Müller
fa0464cd7a pango: port to new GLib threading API 2012-01-18 17:21:02 +00:00
Stefan Sauer
0019bcaa47 controller: port to new location and api changes 2011-11-04 20:14:54 +01:00
Wim Taymans
d93129d8da -base: port to GstVideoFrame API 2011-06-17 15:41:31 +02:00
Sebastian Dröge
bf08ca7020 Merge branch 'master' into 0.11 2011-05-26 13:54:09 +02:00
Sebastian Dröge
92d10cbb8c pango: Create a new base class for all the elements
This prevents the ugly hack where the text_sink pad template
was only added for textoverlay but not for the subclasses.

Also makes this work with the core change that made
subclasses inherit the templates of their parent class.
2011-04-16 15:56:55 +02:00