mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-29 18:48:44 +00:00
Code Issues 1 Projects Releases Wiki Activity

video: API: Add A420 video format

Browse source 
This is planar 4:2:0 YUV plus non-subsampled alpha plane.
This commit is contained in:
Sebastian Dröge 2010-10-13 20:45:28 +02:00
parent d4fa7c28fa
commit 8741707430
2 changed files with 50 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
gst-libs/gst/video/video.c
View file

@ -774,6 +774,8 @@ gst_video_format_from_fourcc (guint32 fourcc)
return GST_VIDEO_FORMAT_Y16;
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'P'):
return GST_VIDEO_FORMAT_UYVP;
case GST_MAKE_FOURCC ('A', '4', '2', '0'):
return GST_VIDEO_FORMAT_A420;
default:
return GST_VIDEO_FORMAT_UNKNOWN;
}
@ -831,6 +833,8 @@ gst_video_format_to_fourcc (GstVideoFormat format)
return GST_MAKE_FOURCC ('Y', '1', '6', ' ');
case GST_VIDEO_FORMAT_UYVP:
return GST_MAKE_FOURCC ('U', 'Y', 'V', 'P');
case GST_VIDEO_FORMAT_A420:
return GST_MAKE_FOURCC ('A', '4', '2', '0');
default:
return 0;
}
@ -965,6 +969,7 @@ gst_video_format_is_rgb (GstVideoFormat format)
case GST_VIDEO_FORMAT_NV21:
case GST_VIDEO_FORMAT_v308:
case GST_VIDEO_FORMAT_UYVP:
case GST_VIDEO_FORMAT_A420:
return FALSE;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
@ -1017,6 +1022,7 @@ gst_video_format_is_yuv (GstVideoFormat format)
case GST_VIDEO_FORMAT_Y800:
case GST_VIDEO_FORMAT_Y16:
case GST_VIDEO_FORMAT_UYVP:
case GST_VIDEO_FORMAT_A420:
return TRUE;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
@ -1100,6 +1106,7 @@ gst_video_format_has_alpha (GstVideoFormat format)
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_A420:
return TRUE;
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
@ -1204,6 +1211,12 @@ gst_video_format_get_row_stride (GstVideoFormat format, int component,
return GST_ROUND_UP_4 (width * 2);
case GST_VIDEO_FORMAT_UYVP:
return GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4);
case GST_VIDEO_FORMAT_A420:
if (component == 0 || component == 3) {
return GST_ROUND_UP_4 (width);
} else {
return GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2);
}
default:
return 0;
}
@ -1235,6 +1248,7 @@ gst_video_format_get_pixel_stride (GstVideoFormat format, int component)
case GST_VIDEO_FORMAT_Y41B:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_A420:
return 1;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_YVYU:
@ -1362,6 +1376,12 @@ gst_video_format_get_component_width (GstVideoFormat format,
case GST_VIDEO_FORMAT_Y800:
case GST_VIDEO_FORMAT_Y16:
return width;
case GST_VIDEO_FORMAT_A420:
if (component == 0 || component == 1) {
return width;
} else {
return GST_ROUND_UP_2 (width) / 2;
}
default:
return 0;
}
@ -1430,6 +1450,12 @@ gst_video_format_get_component_height (GstVideoFormat format,
case GST_VIDEO_FORMAT_Y16:
case GST_VIDEO_FORMAT_UYVP:
return height;
case GST_VIDEO_FORMAT_A420:
if (component == 0 || component == 1) {
return height;
} else {
return GST_ROUND_UP_2 (height) / 2;
}
default:
return 0;
}
@ -1632,6 +1658,22 @@ gst_video_format_get_component_offset (GstVideoFormat format,
case GST_VIDEO_FORMAT_UYVP:
/* UYVP is bit-packed, so this doesn't make sense */
return 0;
case GST_VIDEO_FORMAT_A420:
if (component == 0)
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
if (component == 1)
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
if (component == 2) {
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2);
}
if (component == 3) {
return GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height) +
2 * GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2);
}
default:
return 0;
}
@ -1712,6 +1754,11 @@ gst_video_format_get_size (GstVideoFormat format, int width, int height)
return GST_ROUND_UP_4 (width * 2) * height;
case GST_VIDEO_FORMAT_UYVP:
return GST_ROUND_UP_4 ((width * 2 * 5 + 3) / 4) * height;
case GST_VIDEO_FORMAT_A420:
size = 2 * GST_ROUND_UP_4 (width) * GST_ROUND_UP_2 (height);
size += GST_ROUND_UP_4 (GST_ROUND_UP_2 (width) / 2) *
(GST_ROUND_UP_2 (height) / 2) * 2;
return size;
default:
return 0;
}

4
gst-libs/gst/video/video.h
View file

@ -64,6 +64,7 @@ G_BEGIN_DECLS
* @GST_VIDEO_FORMAT_RGB15: rgb 5-5-5 bits per component (Since: 0.10.30)
* @GST_VIDEO_FORMAT_BGR15: reverse rgb 5-5-5 bits per component (Since: 0.10.30)
* @GST_VIDEO_FORMAT_UYVP: packed 10-bit 4:2:2 YUV (U0-Y0-V0-Y1 U2-Y2-V2-Y3 U4 ...) (Since: 0.10.31)
* @GST_VIDEO_FORMAT_A420: planar 4:4:2:0 AYUV (Since: 0.10.31)
*
* Enum value describing the most common video formats.
*/
@ -102,7 +103,8 @@ typedef enum {
GST_VIDEO_FORMAT_BGR16,
GST_VIDEO_FORMAT_RGB15,
GST_VIDEO_FORMAT_BGR15,
GST_VIDEO_FORMAT_UYVP
GST_VIDEO_FORMAT_UYVP,
GST_VIDEO_FORMAT_A420
} GstVideoFormat;
#define GST_VIDEO_BYTE1_MASK_32 "0xFF000000"