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textoverlay: Add support for AYUV

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This commit is contained in:
Sebastian Dröge 2010-09-01 17:52:31 +02:00
parent 1c2846a0fc
commit ca24ece36b
1 changed files with 82 additions and 8 deletions
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90
ext/pango/gsttextoverlay.c
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@ -186,7 +186,8 @@ static GstStaticPadTemplate src_template_factory =
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx ";"
GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_YUV ("{I420, UYVY, NV12, NV21}"))
GST_VIDEO_CAPS_xRGB ";"
GST_VIDEO_CAPS_YUV ("{AYUV, I420, UYVY, NV12, NV21}"))
);
static GstStaticPadTemplate video_sink_template_factory =
@ -194,7 +195,8 @@ static GstStaticPadTemplate video_sink_template_factory =
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx ";"
GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_YUV ("{I420, UYVY, NV12, NV21}"))
GST_VIDEO_CAPS_xRGB ";"
GST_VIDEO_CAPS_YUV ("{AYUV, I420, UYVY, NV12, NV21}"))
);
static GstStaticPadTemplate text_sink_template_factory =
@ -1360,7 +1362,7 @@ gst_text_overlay_render_pangocairo (GstTextOverlay * overlay,
#define BOX_YPAD 6
static inline void
gst_text_overlay_shade_Y (GstTextOverlay * overlay, guchar * dest,
gst_text_overlay_shade_planar_Y (GstTextOverlay * overlay, guchar * dest,
gint x0, gint x1, gint y0, gint y1)
{
gint i, j, dest_stride;
@ -1384,12 +1386,18 @@ gst_text_overlay_shade_Y (GstTextOverlay * overlay, guchar * dest,
}
static inline void
gst_text_overlay_shade_UYVY_y (GstTextOverlay * overlay, guchar * dest,
gst_text_overlay_shade_packed_Y (GstTextOverlay * overlay, guchar * dest,
gint x0, gint x1, gint y0, gint y1)
{
gint i, j;
guint dest_stride = gst_video_format_get_row_stride (GST_VIDEO_FORMAT_UYVY, 0,
guint dest_stride, pixel_stride, component_offset;
dest_stride = gst_video_format_get_row_stride (overlay->format, 0,
overlay->width);
pixel_stride = gst_video_format_get_pixel_stride (overlay->format, 0);
component_offset =
gst_video_format_get_component_offset (overlay->format, 0, overlay->width,
overlay->height);
x0 = CLAMP (x0 - BOX_XPAD, 0, overlay->width);
x1 = CLAMP (x1 + BOX_XPAD, 0, overlay->width);
@ -1397,12 +1405,22 @@ gst_text_overlay_shade_UYVY_y (GstTextOverlay * overlay, guchar * dest,
y0 = CLAMP (y0 - BOX_YPAD, 0, overlay->height);
y1 = CLAMP (y1 + BOX_YPAD, 0, overlay->height);
if (x0 != 0)
x0 = gst_video_format_get_component_width (overlay->format, 0, x0);
if (x1 != 0)
x1 = gst_video_format_get_component_width (overlay->format, 0, x1);
if (y0 != 0)
y0 = gst_video_format_get_component_height (overlay->format, 0, y0);
if (y1 != 0)
y1 = gst_video_format_get_component_height (overlay->format, 0, y1);
for (i = y0; i < y1; i++) {
for (j = x0; j < x1; j++) {
gint y;
gint y_pos;
y_pos = (i * dest_stride) + j * 2 + 1;
y_pos = (i * dest_stride) + j * pixel_stride + component_offset;
y = dest[y_pos] + overlay->shading_value;
dest[y_pos] = CLAMP (y, 0, 255);
@ -1585,6 +1603,57 @@ gst_text_overlay_blit_UYVY (GstTextOverlay * overlay,
}
}
static inline void
gst_text_overlay_blit_AYUV (GstTextOverlay * overlay,
guint8 * rgb_pixels, gint xpos, gint ypos)
{
int a, r, g, b;
int y, u, v;
int i, j;
int h, w;
guchar *pimage, *dest;
w = overlay->image_width;
h = overlay->image_height;
if (xpos < 0) {
xpos = 0;
}
if (xpos + w > overlay->width) {
w = overlay->width - xpos;
}
if (ypos + h > overlay->height) {
h = overlay->height - ypos;
}
for (i = 0; i < h; i++) {
pimage = overlay->text_image + i * overlay->image_width * 4;
dest = rgb_pixels + (i + ypos) * 4 * overlay->width + xpos * 4;
for (j = 0; j < w; j++) {
a = pimage[CAIRO_ARGB_A];
b = pimage[CAIRO_ARGB_B];
g = pimage[CAIRO_ARGB_G];
r = pimage[CAIRO_ARGB_R];
CAIRO_UNPREMULTIPLY (a, r, g, b);
COMP_Y (y, r, g, b);
COMP_U (u, r, g, b);
COMP_V (v, r, g, b);
a = (a * dest[0] + 128) >> 8;
BLEND (dest[1], a, y, dest[1]);
BLEND (dest[2], a, u, dest[2]);
BLEND (dest[3], a, v, dest[3]);
pimage += 4;
dest += 4;
}
}
}
#define xRGB_BLIT_FUNCTION(name, R, G, B) \
static inline void \
gst_text_overlay_blit_##name (GstTextOverlay * overlay, \
@ -1738,12 +1807,13 @@ gst_text_overlay_push_frame (GstTextOverlay * overlay, GstBuffer * video_frame)
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
gst_text_overlay_shade_Y (overlay,
gst_text_overlay_shade_planar_Y (overlay,
GST_BUFFER_DATA (video_frame), xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_UYVY:
gst_text_overlay_shade_UYVY_y (overlay,
gst_text_overlay_shade_packed_Y (overlay,
GST_BUFFER_DATA (video_frame), xpos, xpos + overlay->image_width,
ypos, ypos + overlay->image_height);
break;
@ -1780,6 +1850,10 @@ gst_text_overlay_push_frame (GstTextOverlay * overlay, GstBuffer * video_frame)
gst_text_overlay_blit_UYVY (overlay,
GST_BUFFER_DATA (video_frame), xpos, ypos);
break;
case GST_VIDEO_FORMAT_AYUV:
gst_text_overlay_blit_AYUV (overlay,
GST_BUFFER_DATA (video_frame), xpos, ypos);
break;
case GST_VIDEO_FORMAT_BGRx:
gst_text_overlay_blit_BGRx (overlay,
GST_BUFFER_DATA (video_frame), xpos, ypos);