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[470/906] gloverlay: add jpeg support

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Fix bug #636070
This commit is contained in:
Anthony Violo 2011-11-17 15:22:06 +01:00 committed by Matthew Waters
parent 351a6d9d01
commit 7d4de78102
3 changed files with 186 additions and 107 deletions
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1
gst/gl/Makefile.am
View file

@ -83,6 +83,7 @@ libgstopengl_la_LIBADD = \
$(GST_PLUGINS_BASE_LIBS) -lgstvideo-$(GST_MAJORMINOR) -lgstinterfaces-$(GST_MAJORMINOR) \
$(GL_LIBS) \
$(LIBPNG_LIBS) \
$(JPEG_LIBS) \
$(LIBM)
libgstopengl_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)

289
gst/gl/gstgloverlay.c
View file

@ -36,7 +36,9 @@
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <jpeglib.h>
#include <png.h>
#include "gstgloverlay.h"
#include <gstgleffectssources.h>
@ -69,7 +71,8 @@ static void gst_gl_overlay_reset_resources (GstGLFilter * filter);
static gboolean gst_gl_overlay_filter (GstGLFilter * filter,
GstGLBuffer * inbuf, GstGLBuffer * outbuf);
static gboolean gst_gl_overlay_loader (GstGLFilter * filter);
static gint gst_gl_overlay_load_png (GstGLFilter * filter);
static gint gst_gl_overlay_load_jpeg (GstGLFilter * filter);
enum
{
@ -236,7 +239,95 @@ gst_gl_overlay_class_init (GstGLOverlayClass * klass)
}
static void
gst_gl_overlay_draw_texture_video (GstGLOverlay * o, GLuint tex)
gst_gl_overlay_calc_ratio_video (GstGLOverlay * o, gfloat * video_ratio_w,
gfloat * video_ratio_h)
{
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;
} else 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;
}
}
static void
gst_gl_overlay_init_texture (GstGLOverlay * o, GLuint tex, int flag)
{
if (flag == 0 && o->type_file == 2) {
glEnable (GL_TEXTURE_2D);
glBindTexture (GL_TEXTURE_2D, tex);
} else {
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
}
}
static void
gst_gl_overlay_draw (GstGLOverlay * o, int flag)
{
float y = 0.0f;
float width = 0.0f;
float height = 0.0f;
if (flag == 1) {
width = o->width_window;
height = o->height_window;
} else if (flag == 0 && o->type_file == 1) {
width = o->width;
height = o->height;
} else if (flag == 0 && o->type_file == 2) {
width = 1.0;
height = 1.0;
}
y = (o->type_file == 2 && flag == 0 ? o->ratio_y : -o->ratio_y) + o->posy;
glTexCoord3f (0.0f, 0.0f, 0.0f);
glVertex3f (-o->ratio_x + o->posx, y, 0.0f);
glTexCoord3f (width, 0.0, 0.0);
glVertex3f (o->ratio_x + o->posx, y, 0.0f);
glTexCoord3f (width, height, 0.0);
y = (o->type_file == 2 && flag == 0 ? -o->ratio_y : o->ratio_y) + o->posy;
glVertex3f (o->ratio_x + o->posx, y, 0.0);
glTexCoord3f (0.0f, height, 0.0f);
glVertex3f (-o->ratio_x + o->posx, y, 0.0);
}
static void
gst_gl_overlay_calc_proportion (GstGLOverlay * o, int flag, float size_texture,
float width, float height)
{
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) size_texture / 100.0;
o->ratio_y =
(o->ratio_window / width) * height * (gfloat) size_texture / 100.0;
} else {
o->ratio_x = o->ratio_texture * (gfloat) size_texture / 100.0;
o->ratio_y = 1.0 * size_texture / 100.0;
}
o->posx =
((o->ratio_window - o->ratio_x) * ((flag ==
1 ? o->pos_x_video : o->pos_x_png) - 50.0) / 50.0);
o->posy =
(1.0 - o->ratio_y) * (((flag ==
1 ? o->pos_y_video : o->pos_y_png) - 50.0) / 50.0);
}
static void
gst_gl_overlay_load_texture (GstGLOverlay * o, GLuint tex, int flag)
{
gfloat video_ratio_w;
gfloat video_ratio_h;
@ -244,102 +335,30 @@ gst_gl_overlay_draw_texture_video (GstGLOverlay * o, GLuint tex)
o->ratio_window = (gfloat) o->width_window / (gfloat) o->height_window;
glMatrixMode (GL_MODELVIEW);
glActiveTexture (GL_TEXTURE0);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, tex);
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 (-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 ();
}
static void
gst_gl_overlay_draw_texture_png (GstGLOverlay * o)
{
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);
glEnable (GL_TEXTURE_RECTANGLE_ARB);
gst_gl_overlay_init_texture (o, tex, flag);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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;
if (flag == 1) {
if (o->rotate_video)
glRotatef (o->angle_video, 0, 1, 0);
gst_gl_overlay_calc_ratio_video (o, &video_ratio_w, &video_ratio_h);
gst_gl_overlay_calc_proportion (o, flag, o->size_video, video_ratio_w,
video_ratio_h);
} else {
o->ratio_x = o->ratio_texture * (gfloat) o->size_png / 100.0;
o->ratio_y = 1.0 * o->size_png / 100.0;
o->ratio_texture = (gfloat) o->width / (gfloat) o->height;
if (o->rotate_png == 2)
glRotatef (o->angle_png, 0, 1, 0);
gst_gl_overlay_calc_proportion (o, flag, o->size_png, o->width, o->height);
}
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 (-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);
gst_gl_overlay_draw (o, flag);
glEnd ();
if (flag == 1)
glDisable (GL_TEXTURE_RECTANGLE_ARB);
}
static void
gst_gl_overlay_init (GstGLOverlay * overlay, GstGLOverlayClass * klass)
{
@ -527,7 +546,7 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
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);
gst_gl_overlay_load_texture (overlay, overlay->pbuftexture, 0);
if (overlay->pbuftexture == 0)
return;
// if (overlay->stretch) {
@ -535,9 +554,9 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
// height = (gfloat) overlay->height;
// }
glLoadIdentity ();
gst_gl_overlay_draw_texture_video (overlay, texture);
gst_gl_overlay_load_texture (overlay, texture, 1);
} else {
gst_gl_overlay_draw_texture_video (overlay, texture);
gst_gl_overlay_load_texture (overlay, texture, 1);
if (overlay->pbuftexture == 0)
return;
// if (overlay->stretch) {
@ -545,7 +564,7 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
// height = (gfloat) overlay->height;
// }
glLoadIdentity ();
gst_gl_overlay_draw_texture_png (overlay);
gst_gl_overlay_load_texture (overlay, overlay->pbuftexture, 0);
}
}
@ -555,14 +574,21 @@ init_pixbuf_texture (GstGLDisplay * display, gpointer data)
GstGLOverlay *overlay = GST_GL_OVERLAY (data);
if (overlay->pixbuf) {
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);
if (overlay->type_file == 1) {
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);
} else if (overlay->type_file == 2) {
glBindTexture (GL_TEXTURE_2D, overlay->pbuftexture);
glTexImage2D (GL_TEXTURE_2D, 0, overlay->internalFormat,
overlay->width, overlay->height, 0, overlay->format,
GL_UNSIGNED_BYTE, overlay->pixbuf);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
} else
display->isAlive = FALSE;
}
@ -574,13 +600,11 @@ gst_gl_overlay_filter (GstGLFilter * filter, GstGLBuffer * inbuf,
GstGLOverlay *overlay = GST_GL_OVERLAY (filter);
if (overlay->pbuf_has_changed && (overlay->location != NULL)) {
if (!gst_gl_overlay_loader (filter))
overlay->pixbuf = NULL;
if ((overlay->type_file = gst_gl_overlay_load_png (filter)) == 0)
if ((overlay->type_file = gst_gl_overlay_load_jpeg (filter)) == 0)
overlay->pixbuf = NULL;
/* if loader failed then display is turned off */
gst_gl_display_thread_add (filter->display, init_pixbuf_texture, overlay);
if (overlay->pixbuf) {
free (overlay->pixbuf);
overlay->pixbuf = NULL;
@ -603,8 +627,49 @@ user_warning_fn (png_structp png_ptr, png_const_charp warning_msg)
#define LOAD_ERROR(msg) { GST_WARNING ("unable to load %s: %s", overlay->location, msg); return FALSE; }
static gboolean
gst_gl_overlay_loader (GstGLFilter * filter)
static gint
gst_gl_overlay_load_jpeg (GstGLFilter * filter)
{
GstGLOverlay *overlay = GST_GL_OVERLAY (filter);
FILE *fp = NULL;
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
JSAMPROW j;
int i;
fp = fopen (overlay->location, "rb");
if (!fp) {
g_error ("error: couldn't open file!\n");
return 0;
}
jpeg_create_decompress (&cinfo);
cinfo.err = jpeg_std_error (&jerr);
jpeg_stdio_src (&cinfo, fp);
jpeg_read_header (&cinfo, TRUE);
jpeg_start_decompress (&cinfo);
overlay->width = cinfo.image_width;
overlay->height = cinfo.image_height;
overlay->internalFormat = cinfo.num_components;
if (cinfo.num_components == 1)
overlay->format = GL_LUMINANCE;
else
overlay->format = GL_RGB;
overlay->pixbuf = (GLubyte *) malloc (sizeof (GLubyte) * overlay->width
* overlay->height * overlay->internalFormat);
for (i = 0; i < overlay->width; ++i) {
j = (overlay->pixbuf +
(((int) overlay->height - (i +
1)) * (int) overlay->width * overlay->internalFormat));
jpeg_read_scanlines (&cinfo, &j, 1);
}
jpeg_finish_decompress (&cinfo);
jpeg_destroy_decompress (&cinfo);
fclose (fp);
return 2;
}
static gint
gst_gl_overlay_load_png (GstGLFilter * filter)
{
GstGLOverlay *overlay = GST_GL_OVERLAY (filter);
@ -620,9 +685,19 @@ gst_gl_overlay_loader (GstGLFilter * filter)
guint y = 0;
guchar **rows = NULL;
gint filler;
png_byte magic[8];
size_t read;
if (!filter->display)
return TRUE;
return 1;
if ((fp = fopen (overlay->location, "rb")) == NULL)
LOAD_ERROR ("file not found");
read = fread (magic, 1, sizeof (magic), fp);
if (read == 0 || !png_check_sig (magic, sizeof (magic))) {
fclose (fp);
return 0;
}
fclose (fp);
if ((fp = fopen (overlay->location, "rb")) == NULL)
LOAD_ERROR ("file not found");
@ -682,5 +757,5 @@ gst_gl_overlay_loader (GstGLFilter * filter)
png_destroy_read_struct (&png_ptr, &info_ptr, png_infopp_NULL);
fclose (fp);
return TRUE;
return 1;
}

3
gst/gl/gstgloverlay.h
View file

@ -52,6 +52,9 @@ struct _GstGLOverlay
guchar *pixbuf;
gint width, height;
GLuint pbuftexture;
GLint internalFormat;
GLenum format;
gint type_file; // 0 = No; 1 = PNG and 2 = JPEG
gfloat width_window;
gfloat height_window;
gfloat posx;