C++ (Cpp) gst_gl_filter_glass_draw_video_planeの例

コード例 #1

ファイル: gstglfilterglass.c プロジェクト: Distrotech/gst-plugins-bad

//opengl scene, params: input texture (not the output filter->texture)
static void
gst_gl_filter_glass_callback (gpointer stuff)
{
  static gint64 start_time = 0;
  gfloat rotation;

  GstGLFilter *filter = GST_GL_FILTER (stuff);
  GstGLFilterGlass *glass_filter = GST_GL_FILTER_GLASS (stuff);
  GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;

  gint width = GST_VIDEO_INFO_WIDTH (&filter->out_info);
  gint height = GST_VIDEO_INFO_HEIGHT (&filter->out_info);
  guint texture = glass_filter->in_tex;

  if (start_time == 0)
    start_time = get_time ();
  else {
    gint64 time_left =
        (glass_filter->timestamp / 1000) - (get_time () - start_time);
    time_left -= 1000000 / 25;
    if (time_left > 2000) {
      GST_LOG ("escape");
      return;
    }
  }

  gst_gl_shader_use (glass_filter->passthrough_shader);

  gst_gl_filter_glass_draw_background_gradient (glass_filter);

  //Rotation
  if (start_time != 0) {
    gint64 time_passed = get_time () - start_time;
    rotation = sin (time_passed / 1200000.0) * 45.0f;
  } else {
    rotation = 0.0f;
  }

  gl->Enable (GL_BLEND);
  gl->BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

  gst_gl_shader_use (glass_filter->shader);

  //Reflection
  gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
      0.0f, 2.0f, 0.3f, 0.0f, TRUE, rotation);

  //Main video
  gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
      0.0f, 0.0f, 1.0f, 1.0f, FALSE, rotation);

  gst_gl_context_clear_shader (GST_GL_BASE_FILTER (filter)->context);

  gl->Disable (GL_BLEND);
}

コード例 #2

ファイル: gstglfilterglass.c プロジェクト: PeterXu/gst-mobile

//opengl scene, params: input texture (not the output filter->texture)
static void
gst_gl_filter_glass_callback (gint width, gint height, guint texture,
    gpointer stuff)
{
  static gint64 start_time = 0;

  GstGLFilter *filter = GST_GL_FILTER (stuff);
  GstGLFilterGlass *glass_filter = GST_GL_FILTER_GLASS (stuff);

  if (start_time == 0)
    start_time = get_time ();
  else {
    gint64 time_left =
        (glass_filter->timestamp / 1000) - (get_time () - start_time);
    time_left -= 1000000 / 25;
    if (time_left > 2000) {
      GST_LOG ("escape");
      return;
    }
  }

  glTranslatef (0.0f, 2.0f, -3.0f);

  gst_gl_filter_glass_draw_background_gradient ();


  //Rotation
  if (start_time != 0) {
    gint64 time_passed = get_time () - start_time;
    glRotated (sin (time_passed / 1200000.0) * 45.0, 0.0, 1.0, 0.0);
  }

  glEnable (GL_BLEND);
  glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

  //Reflection
  gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
      0.0f, 0.0f, 0.3f, 0.0f, TRUE);

  //Main video
  gst_gl_filter_glass_draw_video_plane (filter, width, height, texture,
      0.0f, -2.0f, 1.0f, 1.0f, FALSE);

  glDisable (GL_TEXTURE_RECTANGLE_ARB);
  glDisable (GL_BLEND);
}