Commit graph

21 commits

Author SHA1 Message Date
Tim-Philipp Müller
377c806685 video: don't crash when blending onto video formats that unpack to 64 bits per pixel
We only allocate 8 bits per component for our temp buffers, which
causes invalid memory accesses if we try to unpack formats that
unpack into a format with 16 bits per component such as e.g. v210.

We don't support blending onto those yet, so just bail out.
2012-11-07 11:17:14 +00:00
Tim-Philipp Müller
5f59b4f7ee Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 23:05:09 +00:00
Miguel Angel Cabrera Moya
2d8edb1e86 video-blend: fix memory leak when called with invalid parameters
https://bugzilla.gnome.org/show_bug.cgi?id=687472
2012-11-02 19:37:26 +00:00
Sreerenj Balachandran
1256d5ed71 video-blend: Doc fix 2012-07-24 12:56:46 +02:00
Wim Taymans
38552a2a8a video: rename gst_video_orc_* to video_orc_*
Because then the functions would not be exported
2012-07-23 17:10:08 +02:00
Wim Taymans
e98c8538c5 orc: prefix orc functions with gst_video_orc_
See https://bugzilla.gnome.org/show_bug.cgi?id=680025
2012-07-23 16:56:55 +02:00
Wim Taymans
b392b28179 orc: rename to video-orc* 2012-07-23 16:52:33 +02:00
Mark Nauwelaerts
d03f926162 videoblend: use correct stride when scaling 2012-07-17 18:08:11 +02:00
Edward Hervey
3eb5378247 video-blend: Fix argument signedness
The x/y values are meant to be signed.

This bug was introduced by 76c0881549

Conflicts:

	gst-libs/gst/video/video-blend.c
	gst-libs/gst/video/video-blend.h
2012-07-13 12:18:29 +02:00
Mark Nauwelaerts
e94022806f videooverlaycomposition: port to 0.11
... which also entails porting video-blend

Fixes #678384.
2012-06-28 18:16:20 +02:00
Wim Taymans
cdf55c7c7a video-blend: prepare for 0.11 porting
Remove obsolete code.
Remove the BlendInfo structure, we can do this better with GstVideoFrame
Use GstVideoFrame in the API
Prefix functions with gst_
2012-05-30 09:25:12 +02:00
Wim Taymans
67587918f3 video-blend: remove unused defines 2012-05-29 17:52:06 +02:00
Edward Hervey
0a7d047b1f video: Add GST_VIDEO_FORMAT_ENCODED 2012-04-24 10:44:44 +02:00
Tim-Philipp Müller
3242f55861 test: fix leak in video overlay composition unit test
gst_buffer_set_qdata() will leak the structure passed to it
when called incorrectly (e.g. on a non-metadata-writable buffer).
This is expected, but we must avoid doing that in valgrind.
2012-03-25 13:35:23 +01:00
Tim-Philipp Müller
35a17ac152 video: overlay-composition: blending micro-optimisation 2012-03-25 11:33:04 +01:00
Tim-Philipp Müller
79953f27a8 video: overlay-composition: try to avoid floating point maths in inner loop
Try to avoid floating point maths for each pixel to be blended in
inner loop, and try to avoid the multiplication entirely for the
most common case of the global alpha being 1. Could probably be
refactored a bit more.
2012-03-25 11:31:31 +01:00
Holger Kaelberer
76c0881549 video: overlay-composition: add support for global alpha multiplicator
https://bugzilla.gnome.org/show_bug.cgi?id=668483
2012-03-25 11:27:24 +01:00
Sebastian Dröge
1af6f94d84 video-blend: Actually allow negative offsets in the function signature too 2012-03-06 12:42:03 +01:00
Vincent Penquerc'h
5cf87eedc4 video: overlays may now have premultiplied alpha
https://bugzilla.gnome.org/show_bug.cgi?id=666177
2012-01-06 10:19:19 +00:00
Vincent Penquerc'h
ceeff69bc1 gstvideo: fix a RGB ordering mixup in colorspace conversion code 2011-12-20 19:55:53 +00:00
Thibault Saunier
80054a3b1e video: add some internal helper functions for image blending
This could be improved if we decide we don't need it to
be this generic/flexible.
2011-12-05 15:03:47 +00:00