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164 commits

Author SHA1 Message Date
Sebastian Dröge
93e7bb6759 pango: Fix 'implicit conversion from enumeration type 'GstTextOverlayLineAlign' to different enumeration type 'PangoAlignment'' compiler warning 2012-03-06 13:11:16 +01:00
Oleksij Rempel (Alexey Fisher)
0c2f2a64c5 pango: don't use deprecated pango_cairo_font_map_create_context() 
https://bugzilla.gnome.org/show_bug.cgi?id=671300
 2012-03-04 18:32:32 +00:00
Idar Tollefsen
580b6b2b69 pango: changes includes from brackets to quotes for local files 
https://bugzilla.gnome.org/show_bug.cgi?id=667316
 2012-01-05 10:52:14 +00:00
Thibault Saunier
785e006de9 textoverlay: unpremultiply text image 
The GstVideoOverlayComposition only supports unpremultiplied ARGB
(for now anyway, support for pre-multiplied alpha is planned.)
 2011-12-05 15:37:04 +00:00
Thibault Saunier
cbcf1e0b46 textoverlay: Attach OverlayComposition to buffers when needed 
Add video/x-surface support in the caps
We should then attach it whenever the sink supports it, but this
is working for the time being
 2011-12-05 15:37:04 +00:00
Thibault Saunier
2a687b6dfb textoverlay: Make the text_image data a buffer 
This way we won't free data that would be attached to some buffer.
 2011-12-05 15:37:03 +00:00
Thibault Saunier
a741c0cf11 textoverlay: Sync the caps with the new supported formats 
Thanks to the use of the new video composition library, we gain support to
more colospaces and formats, let's state it.
 2011-12-05 15:37:03 +00:00
Thibault Saunier
a018c187a0 textoverlay: Make use of the new video blending utility 2011-12-05 15:37:03 +00:00
Tim-Philipp Müller
0d98aa25b8 Work around deprecated thread API in glib master 
Add private replacements for deprecated functions such as
g_mutex_new(), g_mutex_free(), g_cond_new() etc., mostly
to avoid the deprecation warnings. We'll change these
over to the new API once we depend on glib >= 2.32.

Replace g_thread_create() with g_thread_try_new().
 2011-12-04 17:16:30 +00:00
Vincent Penquerc'h
96374054ac various: fix pad template leaks 
https://bugzilla.gnome.org/show_bug.cgi?id=662664
 2011-11-28 13:09:02 +00:00
Vincent Penquerc'h
51426a3b2d textoverlay: continue processing text when silent 
This prevents playback wegding when text buffers are
left to pile up.

https://bugzilla.gnome.org/show_bug.cgi?id=662829
 2011-11-08 12:02:49 +00:00
Tim-Philipp Müller
d7fc45f42e docs: fix up some Since: markers 2011-11-07 23:05:44 +00:00
Vincent Penquerc'h
15dc839467 textoverlay: add YV12 support 
Basically the same as I420, just with chroma planes swapped.

https://bugzilla.gnome.org/show_bug.cgi?id=660604
 2011-10-01 19:18:02 +01:00
Sebastian Dröge
d094913a61 textoverlay: Protect against accessing the NULL parent of the pads during shutdown 
Fixes bug #658901.
 2011-09-19 09:34:08 +02:00
Vincent Penquerc'h
7d3858a14d textoverlay: fix text buffer leak 
Make sure to always unref the input text buffer.

Reported by bcxa.sz@gmail.com.

https://bugzilla.gnome.org/show_bug.cgi?id=657049
 2011-08-22 10:48:06 +01:00
Stefan Sauer
2db389f775 textoverlay: improve the example 
Mentioned that this is not ment to be used with subtitles and suggest alternatives.
 2011-07-25 12:04:48 +02:00
Stefan Sauer
5d5ab90e51 textoverlay: add example for feeding from stdin 2011-07-23 14:22:03 +02:00
Stefan Sauer
0667b1adf5 textoverlay: keep untimestamped textbuffer until next one 
Instead of discarding untimestamped text-buffers immeditely after rendering,
keep them until we receive the next text buffer.
Fixes #654959
 2011-07-23 14:04:14 +02:00
Tim-Philipp Müller
c692191c33 GST_PLUGINS_BASE_LIBS is not defined in -base. 2011-06-08 12:21:43 +01:00
Lane Brooks
5488877090 textoverlay: added 'outline-color' parameter to control whether text gets a shadow 2011-05-26 11:05:43 +02:00
Lane Brooks
c8a3f63909 textoverlay: added 'shadow' option to control whether text gets a shadow 2011-05-26 11:03:23 +02:00
Jindrich Makovicka
2ba4a56d74 textrender: Correctly negotiate with downstream instead of just using random caps 
Fixes bug #638897.
 2011-05-26 10:48:05 +02:00
Jindrich Makovicka
c186d400e5 textrender: Add bound checks to not write outside the image area 2011-05-26 10:43:51 +02:00
Jindrich Makovicka
fe533c9995 textrender: Prevent double unref of caps if the caps can't be set on the srcpad 2011-05-26 10:42:46 +02:00
Sebastian Dröge
1312605eac textoverlay: Always hold the class-global pango mutex when using pango API 2011-04-17 14:17:53 +02:00
Sebastian Dröge
d2ce491153 {time,clock}overlay: Hold the class-global pango mutex when changing the pango context 2011-04-17 14:17:52 +02:00
Sebastian Dröge
72b142bfdf {clock,time}overlay: Only set the global pango context options once in class_init 
Instead of doing it over and over again when instantiating a new instance.
 2011-04-17 14:17:52 +02:00
Sebastian Dröge
9ee7398fae pango: Create a new pango context for every subclass 
timeoverlay/clockoverlay are setting some global options
on the context that shouldn't be used for the generic textoverlay.
 2011-04-17 14:17:52 +02:00
Josep Torra
fbc60fc6f4 textoverlay: fix comparison is always false due to limited range of data type 
Perform calculation in a temp var with enough room as there's guarantee that
ret will be able to hold the result for example in _blit_AYUV.
 2011-04-01 15:47:03 +02:00
Sebastian Dröge
026776ca23 textoverlay: Add support for xBGR and RGBx 
Now all RGB variants are supported.
 2011-04-01 10:39:31 +02:00
Lane Brooks
200ee96338 textoverlay: Added support for ARGB and other RGB alpha variants 2011-04-01 10:36:36 +02:00
Lane Brooks
e2150b11ff textoverlay: converted AYUV to use 'A OVER B' alpha compositing 
'A OVER B' compositing is explained at
http://en.wikipedia.org/wiki/Alpha_compositing.

Previously, overlaying text on a transparent background image left the
text overlay also transparent. This pipeline shows such an example:

gst-launch videotestsrc pattern=white ! video/x-raw-yuv,format=\(fourcc\)AYUV ! alpha alpha=0.0 ! textoverlay text=Testing auto-resize=False font-desc=60px ! videomixer ! ffmpegcolorspace ! autovideosink

With this patch, text is composited "OVER" the background image and
thus is visible regardless of the alpha of the background image. The
overlay in the above pipeline works after applying this patch.
 2011-04-01 10:35:08 +02:00
Mart Raudsepp
093a91eec8 textoverlay: Clean up alignment docs a bit and remove horiz top alignment enum 2011-03-16 15:03:51 +00:00
Stefan Kost
9ac74c59db textoverlay: use a class wide mutex to work around pango reentrance issues 
Pango is not reentrant. Use a class wide mutex to protect pange use in
gst_text_overlay_render_pangocairo(). This works reliable in contrast to the
hack in my previous commit.

Fixes Bug #412678
 2011-03-14 11:17:10 +02:00
Stefan Kost
3294ecda7d Revert "textoverlay: add a hack to init the pango engine" 
This reverts commit fee3266056.
 2011-03-14 11:17:10 +02:00
Stefan Kost
1d73ea887d textoverlay: drop trailing whitespaces 2011-03-14 10:43:42 +02:00
Stefan Kost
fee3266056 textoverlay: add a hack to init the pango engine 
Layout a single char to pre-create all resources.
 2011-03-14 10:43:42 +02:00
Lane Brooks
876bf233fb textoverlay: Add support for vertical center alignment 
Fixes bug #639159.
 2011-01-24 19:39:59 +01:00
Tim-Philipp Müller
b6ae695174 textoverlay: make text property controllable too 
Because we can, and because it's the most interesting one
to control really, after xpos/ypos.
 2011-01-06 23:08:34 +00:00
Lane Brooks
e674178331 textoverlay: make some properties controllable 
https://bugzilla.gnome.org/show_bug.cgi?id=638859
 2011-01-06 23:02:23 +00:00
Vincent Penquerc'h
270bac8158 timeoverlay: add missing break 
https://bugzilla.gnome.org/show_bug.cgi?id=637377
 2010-12-16 11:41:02 +01:00
Sebastian Dröge
ca24ece36b textoverlay: Add support for AYUV 2010-09-01 17:52:31 +02:00
Rob Clark
54f4aa28c2 textoverlay: fix Cb/Cr inversion for colored text overlays 
In case of odd values for xpos or ypos, the division by two in CbCr
plane would result in an off-by-one error, which in the case of NV12,
NV21, or UYVY would cause inversion of blue and red colors.  (And
would be not so easily noticed for I420 as it would just cause the
chroma to be offset slightly from the luma.)

This patch also fixes a silly typo from the earlier patch which
added NV12 support that broke UYVY support.
 2010-08-30 22:53:26 +02:00
Sebastian Dröge
faebf174fb textoverlay: Support NV21 too and minor cleanups 2010-08-24 10:12:53 +02:00
Chris Shoemaker
6bd90dc0cc clockoverlay: only rerender text if time string has changed 
The textoverlay element will rerender the text string whenever
overlay sets the 'need_render' flag to TRUE.  Previously, we
lazily set the flag to TRUE every time the time string was requested.
Now, we save a copy of the previously given string, and only set
'need_render' to TRUE if the string has changed.

In my tests with a 30fps video stream, and a time string including
a seconds field, this change reduced the CPU usage of the clockoverlay
element from 60% to 5%.

Fixes bug #627780.
 2010-08-24 09:29:33 +02:00
Rob Clark
1b6918709c textoverlay: add NV12 support 
Fixes bug #627768.
 2010-08-24 09:25:55 +02:00
Mark Nauwelaerts
90a79b4c60 textoverlay: configurable text color and position 
Rather than only left, right, top, etc, allow for horizontal and vertical
positioning on a scale from 0 to 1.
Also cater for configuring rendered text color.

Fixes #624920.

API: GstTextOverlay:xpos
API: GstTextOverlay:ypos
API: GstTextOverlay:color
 2010-08-09 09:49:12 +02:00
Benjamin Otte
1471df894a Add -Wformat-nonliteral -Wformat-security 
And fix the resulting compile failures.

I'm sorry about the patch necessary to gstclockoverlay.h but after
talking to Tim we decided we can live with it.
 2010-03-17 12:09:25 +01:00
Olivier Crête
15fb8f9bf7 textoverlay: Ignore zero framerate 
https://bugzilla.gnome.org/show_bug.cgi?id=606163
 2010-01-06 07:49:27 +01:00
Sebastian Dröge
01ca87e785 textoverlay: Only flush downstream on seeks for flushing seeks 2009-12-09 09:47:30 +01:00