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[380/906] gloverlay: can put video over png images

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Fix bug #595303
This commit is contained in:
Anthony Violo 2009-09-21 15:00:02 +02:00 committed by Matthew Waters
parent 5943045bf6
commit 5fef0569f0
2 changed files with 196 additions and 40 deletions
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226
gst/gl/gstgloverlay.c
View file

@ -73,9 +73,13 @@ enum
{
PROP_0,
PROP_LOCATION,
PROP_XPOS,
PROP_YPOS,
PROP_SIZE
PROP_XPOS_PNG,
PROP_YPOS_PNG,
PROP_SIZE_PNG,
PROP_XPOS_VIDEO,
PROP_YPOS_VIDEO,
PROP_SIZE_VIDEO,
PROP_VIDEOTOP
};
@ -127,36 +131,142 @@ gst_gl_overlay_class_init (GstGLOverlayClass * klass)
"Location of the image", NULL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_XPOS,
g_param_spec_int ("xpos",
PROP_XPOS_PNG,
g_param_spec_int ("xpos-png",
"X position of overlay image in percents",
"X position of overlay image in percents",
0, 100, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_YPOS,
g_param_spec_int ("ypos",
PROP_YPOS_PNG,
g_param_spec_int ("ypos-png",
"Y position of overlay image in percents",
"Y position of overlay image in percents",
0, 100, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SIZE,
g_param_spec_int ("proportion",
PROP_SIZE_PNG,
g_param_spec_int ("proportion-png",
"Relative size of overlay image, in percents",
"Relative size of iverlay image, in percents",
0, 100, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_XPOS_VIDEO,
g_param_spec_int ("xpos-video",
"X position of overlay video in percents",
"X position of overlay video in percents",
0, 100, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_YPOS_VIDEO,
g_param_spec_int ("ypos-video",
"Y position of overlay video in percents",
"Y position of overlay video in percents",
0, 100, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_SIZE_VIDEO,
g_param_spec_int ("proportion-video",
"Relative size of overlay video, in percents",
"Relative size of iverlay video, in percents",
0, 100, 0, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_VIDEOTOP,
g_param_spec_boolean ("video-top",
"Video-top", "Video is over png image", FALSE, G_PARAM_READWRITE));
/*
g_object_class_install_property (gobject_class,
PROP_STRETCH,
g_param_spec_boolean ("stretch",
"Stretch the image to texture size",
"Stretch the image to fit video texture size",
"Stretch the image to texture size",
"Stretch the image to fit video texture size",
TRUE, G_PARAM_READWRITE));
*/
}
void
gst_gl_overlay_draw_texture (GstGLOverlay * overlay, GLuint tex)
static void
gst_gl_overlay_draw_texture_video_on_png (GstGLOverlay * overlay, GLuint tex)
{
GstGLFilter *filter = GST_GL_FILTER (overlay);
gfloat posx = 0.0;
gfloat posy = 0.0;
gfloat size = 0.0;
gfloat width = (gfloat) overlay->width;
gfloat height = (gfloat) overlay->height;
if (overlay->pbuftexture == 0)
return;
// if (overlay->stretch) {
// width = (gfloat) overlay->width;
// height = (gfloat) overlay->height;
// }
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable (GL_BLEND);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, overlay->pbuftexture);
glBegin (GL_QUADS);
size = (overlay->size_png) / 50.0;
posx = (overlay->pos_x_png - 50.0) / 50.0;
posx =
(posx - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posx + (size / 2) >
1.00) ? (1.0 - size / 2) : posx;
posy = (overlay->pos_y_png - 50.0) / 50.0;
posy =
(posy - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posy + (size / 2) >
1.00) ? (1.0 - size / 2) : posy;
glTexCoord2f (0.0, 0.0);
glVertex2f (posx - (size / 2), posy - (size / 2));
glTexCoord2f (width, 0.0);
glVertex2f (posx + (size / 2), posy - (size / 2));
glTexCoord2f (width, height);
glVertex2f (posx + (size / 2), posy + (size / 2));
glTexCoord2f (0.0, height);
glVertex2f (posx - (size / 2), posy + (size / 2));
glEnd ();
width = (gfloat) filter->width;
height = (gfloat) filter->height;
glActiveTexture (GL_TEXTURE0);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
glBegin (GL_QUADS);
size = (overlay->size_video) / 50.0;
posx = (overlay->pos_x_video - 50.0) / 50.0;
posx =
(posx - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posx + (size / 2) >
1.00) ? (1.0 - size / 2) : posx;
posy = (overlay->pos_y_video - 50.0) / 50.0;
posy =
(posy - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posy + (size / 2) >
1.00) ? (1.0 - size / 2) : posy;
glTexCoord2f (0.0, 0.0);
glVertex2f (posx - (size / 2), posy - (size / 2));
glTexCoord2f (width, 0.0);
glVertex2f (posx + (size / 2), posy - (size / 2));
glTexCoord2f (width, height);
glVertex2f (posx + (size / 2), posy + (size / 2));
glTexCoord2f (0.0, height);
glVertex2f (posx - (size / 2), posy + (size / 2));
glEnd ();
glFlush ();
}
static void
gst_gl_overlay_draw_texture_png_on_video (GstGLOverlay * overlay, GLuint tex)
{
GstGLFilter *filter = GST_GL_FILTER (overlay);
@ -172,14 +282,24 @@ gst_gl_overlay_draw_texture (GstGLOverlay * overlay, GLuint tex)
glBegin (GL_QUADS);
size = (overlay->size_video) / 50.0;
posx = (overlay->pos_x_video - 50.0) / 50.0;
posx =
(posx - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posx + (size / 2) >
1.00) ? (1.0 - size / 2) : posx;
posy = (overlay->pos_y_video - 50.0) / 50.0;
posy =
(posy - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posy + (size / 2) >
1.00) ? (1.0 - size / 2) : posy;
glTexCoord2f (0.0, 0.0);
glVertex2f (-1.0, -1.0);
glVertex2f (posx - (size / 2), posy - (size / 2));
glTexCoord2f (width, 0.0);
glVertex2f (1.0, -1.0);
glVertex2f (posx + (size / 2), posy - (size / 2));
glTexCoord2f (width, height);
glVertex2f (1.0, 1.0);
glVertex2f (posx + (size / 2), posy + (size / 2));
glTexCoord2f (0.0, height);
glVertex2f (-1.0, 1.0);
glVertex2f (posx - (size / 2), posy + (size / 2));
glEnd ();
@ -199,12 +319,12 @@ gst_gl_overlay_draw_texture (GstGLOverlay * overlay, GLuint tex)
glBegin (GL_QUADS);
size = (overlay->size) / 50.0;
posx = (overlay->pos_x - 50.0) / 50.0;
size = (overlay->size_png) / 50.0;
posx = (overlay->pos_x_png - 50.0) / 50.0;
posx =
(posx - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posx + (size / 2) >
1.00) ? (1.0 - size / 2) : posx;
posy = (overlay->pos_y - 50.0) / 50.0;
posy = (overlay->pos_y_png - 50.0) / 50.0;
posy =
(posy - (size / 2) < -1.00) ? (-1.0 + size / 2) : (posy + (size / 2) >
1.00) ? (1.0 - size / 2) : posy;
@ -220,10 +340,11 @@ gst_gl_overlay_draw_texture (GstGLOverlay * overlay, GLuint tex)
glEnd ();
glFlush ();
}
static void
gst_gl_overlay_init (GstGLOverlay * overlay, GstGLOverlayClass * klass)
{
@ -233,9 +354,13 @@ gst_gl_overlay_init (GstGLOverlay * overlay, GstGLOverlayClass * klass)
overlay->pbuftexture = 0;
overlay->width = 0;
overlay->height = 0;
overlay->pos_x = 0.0;
overlay->pos_y = 0.0;
overlay->size = 100;
overlay->pos_x_png = 0.0;
overlay->pos_y_png = 0.0;
overlay->size_png = 100;
overlay->pos_x_video = 0.0;
overlay->pos_y_video = 0.0;
overlay->size_video = 100;
overlay->video_top = FALSE;
// overlay->stretch = TRUE;
overlay->pbuf_has_changed = FALSE;
}
@ -259,14 +384,26 @@ gst_gl_overlay_set_property (GObject * object, guint prop_id,
overlay->pbuf_has_changed = TRUE;
overlay->location = g_value_dup_string (value);
break;
case PROP_XPOS:
overlay->pos_x = g_value_get_int (value);
case PROP_XPOS_PNG:
overlay->pos_x_png = g_value_get_int (value);
break;
case PROP_YPOS:
overlay->pos_y = g_value_get_int (value);
case PROP_YPOS_PNG:
overlay->pos_y_png = g_value_get_int (value);
break;
case PROP_SIZE:
overlay->size = g_value_get_int (value);
case PROP_SIZE_PNG:
overlay->size_png = g_value_get_int (value);
break;
case PROP_XPOS_VIDEO:
overlay->pos_x_video = g_value_get_int (value);
break;
case PROP_YPOS_VIDEO:
overlay->pos_y_video = g_value_get_int (value);
break;
case PROP_SIZE_VIDEO:
overlay->size_video = g_value_get_int (value);
break;
case PROP_VIDEOTOP:
overlay->video_top = g_value_get_boolean (value);
break;
/* case PROP_STRETCH:
overlay->stretch = g_value_get_boolean (value);
@ -288,14 +425,26 @@ gst_gl_overlay_get_property (GObject * object, guint prop_id,
case PROP_LOCATION:
g_value_set_string (value, overlay->location);
break;
case PROP_XPOS:
g_value_set_int (value, overlay->pos_x);
case PROP_XPOS_PNG:
g_value_set_int (value, overlay->pos_x_png);
break;
case PROP_YPOS:
g_value_set_int (value, overlay->pos_y);
case PROP_YPOS_PNG:
g_value_set_int (value, overlay->pos_y_png);
break;
case PROP_SIZE:
g_value_set_int (value, overlay->size);
case PROP_SIZE_PNG:
g_value_set_int (value, overlay->size_png);
break;
case PROP_XPOS_VIDEO:
g_value_set_int (value, overlay->pos_x_video);
break;
case PROP_YPOS_VIDEO:
g_value_set_int (value, overlay->pos_y_video);
break;
case PROP_SIZE_VIDEO:
g_value_set_int (value, overlay->size_video);
break;
case PROP_VIDEOTOP:
g_value_set_boolean (value, overlay->video_top);
break;
/* case PROP_STRETCH:
g_value_set_boolean (value, overlay->stretch);
@ -321,7 +470,10 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
gst_gl_overlay_draw_texture (overlay, texture);
if (overlay->video_top)
gst_gl_overlay_draw_texture_video_on_png (overlay, texture);
else
gst_gl_overlay_draw_texture_png_on_video (overlay, texture);
}
static void

10
gst/gl/gstgloverlay.h
View file

@ -40,9 +40,13 @@ struct _GstGLOverlay
gchar *location;
gboolean pbuf_has_changed;
gint8 pos_x;
gint8 pos_y;
guint8 size;
gint8 pos_x_png;
gint8 pos_y_png;
guint8 size_png;
gint8 pos_x_video;
gint8 pos_y_video;
guint8 size_video;
gboolean video_top;
guchar *pixbuf;
gint width, height;
GLuint pbuftexture;