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gamma: Add support for many packed YUV formats

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That is YUY2, UYVY, AYUV and YVYU.
This commit is contained in:
Sebastian Dröge 2010-04-18 09:46:15 +02:00
parent 2de3eabac6
commit 2d1e6cf3f5
1 changed files with 39 additions and 4 deletions
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43
gst/videofilter/gstgamma.c
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@ -69,7 +69,8 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV
("{ IYUV, I420, YV12, Y41B, Y42B, Y444, NV12, NV21 }"))
("{ IYUV, I420, YV12, Y41B, Y42B, Y444, NV12, NV21, "
" YUY2, UYVY, AYUV, YVYU}"))
);
static GstStaticPadTemplate gst_gamma_sink_template =
@ -77,7 +78,8 @@ GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV
("{ IYUV, I420, YV12, Y41B, Y42B, Y444, NV12, NV21 }"))
("{ IYUV, I420, YV12, Y41B, Y42B, Y444, NV12, NV21, "
" YUY2, UYVY, AYUV, YVYU}"))
);
static void gst_gamma_set_property (GObject * object, guint prop_id,
@ -198,7 +200,7 @@ gst_gamma_calculate_tables (GstGamma * gamma)
}
static void
gst_gamma_planar_ip (GstGamma * gamma, guint8 * data)
gst_gamma_planar_yuv_ip (GstGamma * gamma, guint8 * data)
{
gint i, j, height;
gint width, row_stride, row_wrap;
@ -223,6 +225,33 @@ gst_gamma_planar_ip (GstGamma * gamma, guint8 * data)
}
}
static void
gst_gamma_packed_yuv_ip (GstGamma * gamma, guint8 * data)
{
gint i, j, height;
gint width, row_stride, row_wrap;
gint pixel_stride;
const guint8 *table = gamma->gamma_table;
data = data + gst_video_format_get_component_offset (gamma->format, 0,
gamma->width, gamma->height);
width = gst_video_format_get_component_width (gamma->format, 0, gamma->width);
height = gst_video_format_get_component_height (gamma->format, 0,
gamma->height);
row_stride = gst_video_format_get_row_stride (gamma->format, 0, gamma->width);
pixel_stride = gst_video_format_get_pixel_stride (gamma->format, 0);
row_wrap = row_stride - pixel_stride * width;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
*data = table[*data];
data += pixel_stride;
}
data += row_wrap;
}
}
static gboolean
gst_gamma_set_caps (GstBaseTransform * base, GstCaps * incaps,
GstCaps * outcaps)
@ -248,7 +277,13 @@ gst_gamma_set_caps (GstBaseTransform * base, GstCaps * incaps,
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
gamma->process = gst_gamma_planar_ip;
gamma->process = gst_gamma_planar_yuv_ip;
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_YVYU:
gamma->process = gst_gamma_packed_yuv_ip;
break;
default:
goto invalid_caps;