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14 commits

Author SHA1 Message Date
David Schleef
beacccc396 videoscale: Add nearest/linear scaling for NV12 2012-02-04 13:41:47 -08:00
David Schleef
fc31f355ea videoscale: Fix off-by-one error in previous commit 
Fix for 7c0b702e.  It helps to get your j+1's right.
 2011-04-24 18:46:52 -07:00
David Schleef
7c0b702e14 videoscale: Fix ARGB bilinear scaling 
Fixes #648548.  Orc generates bad code for
gst_videoscale_orc_resample_merge_bilinear_u32, so we'll use the
slightly slower two-stage process.  I'd fix Orc, but it's hard to
get excited about fixing a feature that I'm planning to deprecate
and replace.
 2011-04-24 18:22:23 -07:00
David Schleef
d4dbebc606 videoscale: hack to fix invalid reads in linear 
https://bugzilla.gnome.org/show_bug.cgi?id=633837
 2011-04-24 14:21:18 +01:00
Marc Plano-Lesay
bf2b14f860 fix unused-but-set-variable warnings with gcc 4.6 
https://bugzilla.gnome.org/show_bug.cgi?id=647294
 2011-04-12 12:24:37 +01:00
David Schleef
e1149f52c1 videoscale: Add 16-bit-channel support 2011-02-20 12:04:02 -08:00
David Schleef
0cceeb2035 videoscale: refactor using more Orc code 
Convert downsampling to Orc.  Convert horizontal linear scaling
to Orc.  Combine horizontal and vertical scaling into one pass.
 2010-09-14 12:33:21 -07:00
Edward Hervey
8cd1b5209b gst: Remove dead assignments and resulting unused variables 2009-08-08 15:54:02 +02:00
Sebastian Dröge
2e5c946501 videoscale: Add support for 16 bit grayscale in native endianness 2009-05-26 15:26:30 +02:00
Sebastian Dröge
9d586e0475 videoscale: Rewrite YUYV (and friends) scaling and don't read/write over line ends 
Partially fixes bug #577054, there's just one issue left now.
 2009-03-28 16:08:44 +01:00
Sebastian Dröge
abbce230e2 gst/videoscale/: Support 1x1 images as input and output as for example the BBC HQ new streams have 1x1 GIFs in the pl... 
Original commit message from CVS:
* gst/videoscale/gstvideoscale.c:
* gst/videoscale/vs_4tap.c: (vs_image_scale_4tap_Y):
* gst/videoscale/vs_image.c: (vs_image_scale_nearest_RGBA),
(vs_image_scale_linear_RGBA), (vs_image_scale_nearest_RGB),
(vs_image_scale_linear_RGB), (vs_image_scale_nearest_YUYV),
(vs_image_scale_linear_YUYV), (vs_image_scale_nearest_UYVY),
(vs_image_scale_linear_UYVY), (vs_image_scale_nearest_Y),
(vs_image_scale_linear_Y), (vs_image_scale_nearest_RGB565),
(vs_image_scale_linear_RGB565), (vs_image_scale_nearest_RGB555),
(vs_image_scale_linear_RGB555):
Support 1x1 images as input and output as for example the BBC HQ new
streams have 1x1 GIFs in the playlists for some reason.
 2008-05-02 10:02:05 +00:00
David Schleef
25d874ec9b gst/videoscale/: Add a 4-tap image scaler. Theoretically looks much prettier. 
Original commit message from CVS:
* gst/videoscale/Makefile.am:
* gst/videoscale/gstvideoscale.c:
* gst/videoscale/gstvideoscale.h:
* gst/videoscale/vs_4tap.c:
* gst/videoscale/vs_4tap.h:
* gst/videoscale/vs_image.c:
* gst/videoscale/vs_image.h:
* gst/videoscale/vs_scanline.c:
* gst/videoscale/vs_scanline.h:
Add a 4-tap image scaler.  Theoretically looks much prettier.
The tap calculation could use some improvement.
 2006-11-14 23:08:38 +00:00
Andy Wingo
1ac4d378eb gst/videoscale/vs_image.c (vs_image_scale_nearest_YUYV): Typo ixes a seggie mcfalterson (#310894). 
Original commit message from CVS:
2005-07-20  Andy Wingo  <wingo@pobox.com>

* gst/videoscale/vs_image.c (vs_image_scale_nearest_YUYV): Typo
fix (?), fixes a seggie mcfalterson (#310894).
 2005-07-20 17:30:45 +00:00
Andy Wingo
4063477460 gst/videoscale: Merge David's work from 0.8 branch. Changes to come later. 
Original commit message from CVS:
2005-07-01  Andy Wingo  <wingo@pobox.com>

* gst/videoscale: Merge David's work from 0.8 branch. Changes to
come later.
 2005-07-01 16:55:43 +00:00