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videoflip: Add NV12/NV21 support

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=688225
This commit is contained in:
Nicolas Dufresne 2012-11-12 19:23:41 +01:00 committed by Olivier Crête
parent 9ad88d265c
commit 673d2d24b8
1 changed files with 204 additions and 2 deletions
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206
gst/videofilter/gstvideoflip.c
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@ -69,7 +69,7 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ AYUV, "
"ARGB, BGRA, ABGR, RGBA, Y444, xRGB, RGBx,xBGR, BGRx, "
"RGB, BGR, I420, YV12, IYUV, YUY2, UYVY, YVYU }"))
"RGB, BGR, I420, YV12, IYUV, YUY2, UYVY, YVYU, NV12, NV21 }"))
);
static GstStaticPadTemplate gst_video_flip_sink_template =
@ -78,7 +78,7 @@ GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ AYUV, "
"ARGB, BGRA, ABGR, RGBA, Y444, xRGB, RGBx,xBGR, BGRx, "
"RGB, BGR, I420, YV12, IYUV, YUY2, UYVY, YVYU }"))
"RGB, BGR, I420, YV12, IYUV, YUY2, UYVY, YVYU, NV12, NV21 }"))
);
#define GST_TYPE_VIDEO_FLIP_METHOD (gst_video_flip_method_get_type())
@ -428,6 +428,204 @@ gst_video_flip_planar_yuv (GstVideoFlip * videoflip, GstVideoFrame * dest,
}
}
static void
gst_video_flip_semi_planar_yuv (GstVideoFlip * videoflip, GstVideoFrame * dest,
const GstVideoFrame * src)
{
gint x, y;
guint8 const *s;
guint8 *d;
gint s_off, d_off;
gint src_y_stride, src_uv_stride;
gint src_y_height, src_uv_height;
gint src_y_width, src_uv_width;
gint dest_y_stride, dest_uv_stride;
gint dest_y_height, dest_uv_height;
gint dest_y_width, dest_uv_width;
src_y_stride = GST_VIDEO_FRAME_PLANE_STRIDE (src, 0);
src_uv_stride = GST_VIDEO_FRAME_PLANE_STRIDE (src, 1);
dest_y_stride = GST_VIDEO_FRAME_PLANE_STRIDE (dest, 0);
dest_uv_stride = GST_VIDEO_FRAME_PLANE_STRIDE (dest, 1);
src_y_width = GST_VIDEO_FRAME_COMP_WIDTH (src, 0);
src_uv_width = GST_VIDEO_FRAME_COMP_WIDTH (src, 1);
dest_y_width = GST_VIDEO_FRAME_COMP_WIDTH (dest, 0);
dest_uv_width = GST_VIDEO_FRAME_COMP_WIDTH (dest, 1);
src_y_height = GST_VIDEO_FRAME_COMP_HEIGHT (src, 0);
src_uv_height = GST_VIDEO_FRAME_COMP_HEIGHT (src, 1);
dest_y_height = GST_VIDEO_FRAME_COMP_HEIGHT (dest, 0);
dest_uv_height = GST_VIDEO_FRAME_COMP_HEIGHT (dest, 1);
switch (videoflip->method) {
case GST_VIDEO_FLIP_METHOD_90R:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] =
s[(src_y_height - 1 - x) * src_y_stride + y];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = (src_uv_height - 1 - x) * src_uv_stride + y * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
break;
case GST_VIDEO_FLIP_METHOD_90L:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] =
s[x * src_y_stride + (src_y_width - 1 - y)];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = x * src_uv_stride + (src_uv_width - 1 - y) * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
break;
case GST_VIDEO_FLIP_METHOD_180:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] =
s[(src_y_height - 1 - y) * src_y_stride + (src_y_width - 1 - x)];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = (src_uv_height - 1 - y) * src_uv_stride + (src_uv_width - 1 -
x) * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
break;
case GST_VIDEO_FLIP_METHOD_HORIZ:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] =
s[y * src_y_stride + (src_y_width - 1 - x)];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = y * src_uv_stride + (src_uv_width - 1 - x) * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
break;
case GST_VIDEO_FLIP_METHOD_VERT:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] =
s[(src_y_height - 1 - y) * src_y_stride + x];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = (src_uv_height - 1 - y) * src_uv_stride + x * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
break;
case GST_VIDEO_FLIP_METHOD_TRANS:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] = s[x * src_y_stride + y];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = x * src_uv_stride + y * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
case GST_VIDEO_FLIP_METHOD_OTHER:
/* Flip Y */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 0);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 0);
for (y = 0; y < dest_y_height; y++) {
for (x = 0; x < dest_y_width; x++) {
d[y * dest_y_stride + x] =
s[(src_y_height - 1 - x) * src_y_stride + (src_y_width - 1 - y)];
}
}
/* Flip UV */
s = GST_VIDEO_FRAME_PLANE_DATA (src, 1);
d = GST_VIDEO_FRAME_PLANE_DATA (dest, 1);
for (y = 0; y < dest_uv_height; y++) {
for (x = 0; x < dest_uv_width; x++) {
d_off = y * dest_uv_stride + x * 2;
s_off = (src_uv_height - 1 - x) * src_uv_stride + (src_uv_width - 1 -
y) * 2;
d[d_off] = s[s_off];
d[d_off + 1] = s[s_off + 1];
}
}
break;
case GST_VIDEO_FLIP_METHOD_IDENTITY:
g_assert_not_reached ();
break;
default:
g_assert_not_reached ();
break;
}
}
static void
gst_video_flip_packed_simple (GstVideoFlip * videoflip, GstVideoFrame * dest,
const GstVideoFrame * src)
@ -817,6 +1015,10 @@ gst_video_flip_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
case GST_VIDEO_FORMAT_BGR:
vf->process = gst_video_flip_packed_simple;
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
vf->process = gst_video_flip_semi_planar_yuv;
break;
default:
break;
}