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videoscale: Add NV21 support

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=734650
This commit is contained in:
Sanjay NM 2014-08-11 10:15:14 +05:30 committed by Sebastian Dröge
parent 48f7a40078
commit 8cab1ab5fc
1 changed files with 5 additions and 2 deletions
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7
gst/videoscale/gstvideoscale.c
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@ -121,11 +121,10 @@ enum
* FIXME: add r210 support
*/
/* FIXME: if we can do NV12, NV21 shouldn't be so hard */
#define GST_VIDEO_FORMATS "{ I420, YV12, YUY2, UYVY, AYUV, RGBx, " \
"BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, " \
"BGR, Y41B, Y42B, YVYU, Y444, GRAY8, GRAY16_BE, GRAY16_LE, " \
"v308, RGB16, RGB15, ARGB64, AYUV64, NV12 } "
"v308, RGB16, RGB15, ARGB64, AYUV64, NV12, NV21 } "
static GstStaticCaps gst_video_scale_format_caps =
@ -1120,6 +1119,7 @@ _get_black_for_format (GstVideoFormat format)
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
return black[4]; /* Y, U, V, 0 */
case GST_VIDEO_FORMAT_RGB16:
case GST_VIDEO_FORMAT_RGB15:
@ -1376,6 +1376,9 @@ do_scale (GstVideoFilter * filter, VSImage dest[4], VSImage src[4])
}
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
/* NV21 format is exactly same as NV12 with the difference that u, v are reversed.
So same functions of NV12 could be reused */
if (add_borders) {
vs_fill_borders_Y (&dest[0], black);
vs_fill_borders_Y16 (&dest[1], (black[1] << 8) | black[2]);