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[469/906] gloverlay: manage ratio texture

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Fix bug #630525
This commit is contained in:
Anthony Violo 2011-11-17 11:39:50 +01:00 committed by Matthew Waters
parent 816a5bcb36
commit 351a6d9d01
2 changed files with 163 additions and 147 deletions
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301
gst/gl/gstgloverlay.c
View file

@ -49,12 +49,15 @@
#define GST_CAT_DEFAULT gst_gl_overlay_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
#define DEBUG_INIT(bla) \
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_gl_overlay_debug, "gloverlay", 0, "gloverlay element");
GST_BOILERPLATE_FULL (GstGLOverlay, gst_gl_overlay, GstGLFilter,
GST_TYPE_GL_FILTER, DEBUG_INIT);
static gboolean gst_gl_overlay_set_caps (GstGLFilter * filter,
GstCaps * incaps, GstCaps * outcaps);
static void gst_gl_overlay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_gl_overlay_get_property (GObject * object, guint prop_id,
@ -82,7 +85,8 @@ enum
PROP_ROTATE_PNG,
PROP_ROTATE_VIDEO,
PROP_ANGLE_PNG,
PROP_ANGLE_VIDEO
PROP_ANGLE_VIDEO,
PROP_RATIO_VIDEO
};
@ -122,6 +126,7 @@ gst_gl_overlay_class_init (GstGLOverlayClass * klass)
gobject_class->set_property = gst_gl_overlay_set_property;
gobject_class->get_property = gst_gl_overlay_get_property;
GST_GL_FILTER_CLASS (klass)->set_caps = gst_gl_overlay_set_caps;
GST_GL_FILTER_CLASS (klass)->filter = gst_gl_overlay_filter;
GST_GL_FILTER_CLASS (klass)->display_init_cb =
gst_gl_overlay_init_gl_resources;
@ -212,6 +217,14 @@ gst_gl_overlay_class_init (GstGLOverlayClass * klass)
"choose angle in axis to choosen between -90 and 90",
"choose angle in axis to choosen between -90 and 90",
-90, 90, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_RATIO_VIDEO,
g_param_spec_int ("ratio-video",
"choose ratio video between 0 and 3\n \t\t\t0 : Default ratio\n\t\t\t1 : 4 / 3\n\t\t\t2 : 16 / 9\n\t\t\t3 : 16 / 10",
"choose ratio video between 0 and 3\n \t\t\t0 : Default ratio\n\t\t\t1 : 4 / 3\n\t\t\t2 : 16 / 9\n\t\t\t3 : 16 / 10",
0, 3, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/*
g_object_class_install_property (gobject_class,
PROP_STRETCH,
@ -223,161 +236,106 @@ gst_gl_overlay_class_init (GstGLOverlayClass * klass)
}
static void
gst_gl_overlay_draw_texture_video_on_png (GstGLOverlay * overlay, GLuint tex)
gst_gl_overlay_draw_texture_video (GstGLOverlay * o, GLuint tex)
{
GstGLFilter *filter = GST_GL_FILTER (overlay);
gfloat posx = 0.0;
gfloat posy = 0.0;
gfloat size = 0.0;
gfloat width = (gfloat) filter->width;
gfloat height = (gfloat) filter->height;
gfloat ratio = 0.0;
gfloat translate = 0.0;
gfloat video_ratio_w;
gfloat video_ratio_h;
// if (overlay->stretch) {
// width = (gfloat) overlay->width;
// height = (gfloat) overlay->height;
// }
if (overlay->pbuftexture != 0) {
size = (overlay->size_png) / 50.0f;
posx = (overlay->pos_x_png - 50.0f) / 50.0f;
posx =
(posx - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posx + (size / 2) >
1.00) ? (1.0f - size / 2) : posx;
posy = (overlay->pos_y_png - 50.0f) / 50.0f;
posy =
(posy - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posy + (size / 2) >
1.00) ? (1.0f - size / 2) : posy;
ratio = ((posx + (size / 2)) - (posx - (size / 2))) * height / width;
translate = overlay->size_png / 400.0f;
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, overlay->pbuftexture);
glLoadIdentity ();
glTranslatef (0.0f, translate, -1.0f);
if (overlay->rotate_png == 2)
glRotatef (overlay->angle_png, 0, 1, 0);
glBegin (GL_QUADS);
glTexCoord3f (0.0f, 0.0f, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, 0.0, 0.0);
glVertex3f (posx + (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, height, 0.0);
glVertex3f (posx + (size / 2), posy - (size / 2) + ratio, 0.0f);
glTexCoord3f (0.0, height, 0.0);
glVertex3f (posx - (size / 2), posy - (size / 2) + ratio, 0.0f);
glEnd ();
}
size = (overlay->size_video) / 50.0f;
posx = (overlay->pos_x_video - 50.0f) / 50.0f;
posx =
(posx - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posx + (size / 2) >
1.00) ? (1.0f - size / 2) : posx;
posy = (overlay->pos_y_video - 50.0f) / 50.0f;
posy =
(posy - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posy + (size / 2) >
1.00) ? (1.0f - size / 2) : posy;
ratio = ((posx + (size / 2)) - (posx - (size / 2))) * height / width;
translate = overlay->size_video / 400.0f;
o->ratio_window = (gfloat) o->width_window / (gfloat) o->height_window;
glMatrixMode (GL_MODELVIEW);
glActiveTexture (GL_TEXTURE0);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
glLoadIdentity ();
glTranslatef (0.0f, translate, -1.0f);
if (overlay->rotate_video)
glRotatef (overlay->angle_video, 0, 1, 0);
glTranslatef (0.0f, 0.0f, -1.43f);
glScalef (1.0, 1.0, 1.0);
if (o->rotate_video)
glRotatef (o->angle_video, 0, 1, 0);
if (o->ratio_video == 0) {
o->ratio_texture = (gfloat) o->ratio_window;
video_ratio_w = (gfloat) o->width_window;
video_ratio_h = (gfloat) o->height_window;
}
if (o->ratio_video == 1) {
o->ratio_texture = (gfloat) 1.33;
video_ratio_w = 4.0;
video_ratio_h = 3.0;
} else if (o->ratio_video == 2) {
o->ratio_texture = (gfloat) 1.77;
video_ratio_w = 16.0;
video_ratio_h = 9.0;
} else {
o->ratio_texture = (gfloat) 1.6;
video_ratio_w = 16.0;
video_ratio_h = 10.0;
}
if ((1.59 < o->ratio_window && o->ratio_window < 1.61
&& 1.77 < o->ratio_texture && o->ratio_texture < 1.78)
|| (1.3 < o->ratio_window && o->ratio_window < 1.34
&& ((1.7 < o->ratio_texture && o->ratio_texture < 1.78)
|| (1.59 < o->ratio_texture && o->ratio_texture < 1.61)))) {
o->ratio_x = o->ratio_window * (gfloat) o->size_video / 100.0;
o->ratio_y =
(o->ratio_window / video_ratio_w) * video_ratio_h *
(gfloat) o->size_video / 100.0;
} else {
o->ratio_x = o->ratio_texture * (gfloat) o->size_video / 100.0;
o->ratio_y = 1.0 * o->size_video / 100.0;
}
o->posx = ((o->ratio_window - o->ratio_x) * (o->pos_x_video - 50.0) / 50.0);
o->posy = (1.0 - o->ratio_y) * ((o->pos_y_video - 50.0) / 50.0);
glBegin (GL_QUADS);
glTexCoord3f (0.0f, 0.0f, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, 0.0f, 0.0f);
glVertex3f (posx + (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, height, 0.0);
glVertex3f (posx + (size / 2), posy - (size / 2) + ratio, 0.0f);
glTexCoord3f (0.0f, height, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2) + ratio, 0.0f);
glVertex3f (-o->ratio_x + o->posx, -o->ratio_y + o->posy, 0.0f);
glTexCoord3f (o->width_window, 0.0, 0.0);
glVertex3f (o->ratio_x + o->posx, -o->ratio_y + o->posy, 0.0f);
glTexCoord3f (o->width_window, o->height_window, 0.0);
glVertex3f (o->ratio_x + o->posx, o->ratio_y + o->posy, 0.0);
glTexCoord3f (0.0, o->height_window, 0.0);
glVertex3f (-o->ratio_x + o->posx, o->ratio_y + o->posy, 0.0);
glEnd ();
glFlush ();
}
static void
gst_gl_overlay_draw_texture_png_on_video (GstGLOverlay * overlay, GLuint tex)
gst_gl_overlay_draw_texture_png (GstGLOverlay * o)
{
GstGLFilter *filter = GST_GL_FILTER (overlay);
gfloat posx = 0.0;
gfloat posy = 0.0;
gfloat size = 0.0;
gfloat width = (gfloat) filter->width;
gfloat height = (gfloat) filter->height;
gfloat ratio = 0.0;
gfloat translate = 0.0;
size = (overlay->size_video) / 50.0f;
posx = (overlay->pos_x_video - 50.0f) / 50.0f;
posx =
(posx - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posx + (size / 2) >
1.00) ? (1.0f - size / 2) : posx;
posy = (overlay->pos_y_video - 50.0f) / 50.0f;
posy =
(posy - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posy + (size / 2) >
1.00) ? (1.0f - size / 2) : posy;
ratio = ((posx + (size / 2)) - (posx - (size / 2))) * height / width;
translate = overlay->size_video / 400.0f;
o->ratio_window = (gfloat) o->width_window / (gfloat) o->height_window;
o->ratio_texture = (gfloat) o->width / (gfloat) o->height;
glMatrixMode (GL_MODELVIEW);
glActiveTexture (GL_TEXTURE0);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
glLoadIdentity ();
glTranslatef (0.0f, translate, -1.0f);
if (overlay->rotate_video)
glRotatef (overlay->angle_video, 0, 1, 0);
glBegin (GL_QUADS);
glTexCoord3f (0.0f, 0.0f, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, 0.0f, 0.0f);
glVertex3f (posx + (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, height, 0.0f);
glVertex3f (posx + (size / 2), posy - (size / 2) + ratio, 0.0f);
glTexCoord3f (0.0f, height, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2) + ratio, 0.0f);
glEnd ();
if (overlay->pbuftexture == 0)
return;
// if (overlay->stretch) {
//width = (gfloat) overlay->width;
//height = (gfloat) overlay->height;
// }
size = (overlay->size_png) / 50.0f;
posx = (overlay->pos_x_png - 50.0f) / 50.0f;
posx =
(posx - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posx + (size / 2) >
1.00) ? (1.0f - size / 2) : posx;
posy = (overlay->pos_y_png - 50.0f) / 50.0f;
posy =
(posy - (size / 2) < -1.00) ? (-1.0f + size / 2) : (posy + (size / 2) >
1.00) ? (1.0f - size / 2) : posy;
ratio = ((posx + (size / 2)) - (posx - (size / 2))) * height / width;
translate = overlay->size_png / 400.0f;
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, overlay->pbuftexture);
glLoadIdentity ();
glTranslatef (0.0f, translate, -1.0f);
if (overlay->rotate_png == 2)
glRotatef (overlay->angle_png, 0, 1, 0);
glBegin (GL_QUADS);
glEnable (GL_BLEND);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, o->pbuftexture);
glTranslatef (0.0f, 0.0f, -1.43f);
glScalef (1.0, 1.0, 1.0);
o->ratio_texture = (gfloat) o->width / (gfloat) o->height;
if (o->rotate_png == 2)
glRotatef (o->angle_png, 0, 1, 0);
if ((1.59 < o->ratio_window && o->ratio_window < 1.61
&& 1.77 < o->ratio_texture && o->ratio_texture < 1.78)
|| (1.3 < o->ratio_window && o->ratio_window < 1.34
&& ((1.7 < o->ratio_texture && o->ratio_texture < 1.78)
|| (1.59 < o->ratio_texture && o->ratio_texture < 1.61)))) {
o->ratio_x = o->ratio_window * (gfloat) o->size_png / 100.0;
o->ratio_y =
((o->ratio_window / o->width) * o->height) * (gfloat) o->size_png /
100.0;
} else {
o->ratio_x = o->ratio_texture * (gfloat) o->size_png / 100.0;
o->ratio_y = 1.0 * o->size_png / 100.0;
}
o->posx = ((o->ratio_window - o->ratio_x) * (o->pos_x_png - 50.0) / 50.0);
o->posy = (1.0 - o->ratio_y) * ((o->pos_y_png - 50.0) / 50.0);
glBegin (GL_POLYGON);
glTexCoord3f (0.0f, 0.0f, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, 0.0f, 0.0f);
glVertex3f (posx + (size / 2), posy - (size / 2), 0.0f);
glTexCoord3f (width, height, 0.0f);
glVertex3f (posx + (size / 2), posy - (size / 2) + ratio, 0.0f);
glTexCoord3f (0.0f, height, 0.0f);
glVertex3f (posx - (size / 2), posy - (size / 2) + ratio, 0.0f);
glVertex3f (-o->ratio_x + o->posx, -o->ratio_y + o->posy, 0.0f);
glTexCoord3f (o->width, 0.0, 0.0);
glVertex3f (o->ratio_x + o->posx, -o->ratio_y + o->posy, 0.0f);
glTexCoord3f (o->width, o->height, 0.0);
glVertex3f (o->ratio_x + o->posx, o->ratio_y + o->posy, 0.0);
glTexCoord3f (0.0, o->height, 0.0);
glVertex3f (-o->ratio_x + o->posx, o->ratio_y + o->posy, 0.0);
glEnd ();
glFlush ();
}
@ -402,6 +360,7 @@ gst_gl_overlay_init (GstGLOverlay * overlay, GstGLOverlayClass * klass)
overlay->rotate_video = 0;
overlay->angle_png = 0;
overlay->angle_video = 0;
overlay->ratio_video = 0;
// overlay->stretch = TRUE;
overlay->pbuf_has_changed = FALSE;
}
@ -458,6 +417,9 @@ gst_gl_overlay_set_property (GObject * object, guint prop_id,
case PROP_ANGLE_VIDEO:
overlay->angle_video = g_value_get_int (value);
break;
case PROP_RATIO_VIDEO:
overlay->ratio_video = g_value_get_int (value);
break;
/* case PROP_STRETCH:
overlay->stretch = g_value_get_boolean (value);
break;
@ -511,6 +473,9 @@ gst_gl_overlay_get_property (GObject * object, guint prop_id,
case PROP_ANGLE_VIDEO:
g_value_set_int (value, overlay->angle_video);
break;
case PROP_RATIO_VIDEO:
g_value_set_int (value, overlay->ratio_video);
break;
/* case PROP_STRETCH:
g_value_set_boolean (value, overlay->stretch);
break;
@ -521,6 +486,28 @@ gst_gl_overlay_get_property (GObject * object, guint prop_id,
}
}
static gboolean
gst_gl_overlay_set_caps (GstGLFilter * filter, GstCaps * incaps,
GstCaps * outcaps)
{
GstGLOverlay *overlay = GST_GL_OVERLAY (filter);
gchar *str_caps;
GstStructure *structure;
const GValue *width_value;
structure = gst_caps_get_structure (incaps, 0);
width_value = gst_structure_get_value (structure, "width");
str_caps = g_strdup_value_contents (width_value);
overlay->width_window = atof (str_caps);
g_free (str_caps);
width_value = gst_structure_get_value (structure, "height");
str_caps = g_strdup_value_contents (width_value);
overlay->height_window = atof (str_caps);
g_free (str_caps);
return TRUE;
}
static void
gst_gl_overlay_init_resources (GstGLFilter * filter)
{
@ -534,13 +521,32 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
gluPerspective (70.0f, (GLfloat) width / (GLfloat) height, 0.0f, 1000.0f);
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
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);
gluPerspective (70.0f,
(GLfloat) overlay->width_window / (GLfloat) overlay->height_window, 1.0f,
1000.0f);
glEnable (GL_DEPTH_TEST);
gluLookAt (0.0, 0.0, 0.01, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
if (overlay->video_top) {
gst_gl_overlay_draw_texture_png (overlay);
if (overlay->pbuftexture == 0)
return;
// if (overlay->stretch) {
// width = (gfloat) overlay->width;
// height = (gfloat) overlay->height;
// }
glLoadIdentity ();
gst_gl_overlay_draw_texture_video (overlay, texture);
} else {
gst_gl_overlay_draw_texture_video (overlay, texture);
if (overlay->pbuftexture == 0)
return;
// if (overlay->stretch) {
// width = (gfloat) overlay->width;
// height = (gfloat) overlay->height;
// }
glLoadIdentity ();
gst_gl_overlay_draw_texture_png (overlay);
}
}
static void
@ -553,6 +559,7 @@ init_pixbuf_texture (GstGLDisplay * display, gpointer data)
glDeleteTextures (1, &overlay->pbuftexture);
glGenTextures (1, &overlay->pbuftexture);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, overlay->pbuftexture);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
(gint) overlay->width, (gint) overlay->height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, overlay->pixbuf);

9
gst/gl/gstgloverlay.h
View file

@ -52,6 +52,15 @@ struct _GstGLOverlay
guchar *pixbuf;
gint width, height;
GLuint pbuftexture;
gfloat width_window;
gfloat height_window;
gfloat posx;
gfloat posy;
gfloat ratio_window;
gfloat ratio_texture;
gfloat ratio_x;
gfloat ratio_y;
gfloat ratio_video;
/* gboolean stretch; */
};