static gboolean
gst_visual_setup (GstAudioVisualizer * bscope)
{
GstVisual *visual = GST_VISUAL (bscope);
gint depth;
gst_visual_clear_actors (visual);
/* FIXME: we need to know how many bits we actually have in memory */
depth = bscope->vinfo.finfo->pixel_stride[0];
if (bscope->vinfo.finfo->bits >= 8) {
depth *= 8;
}
visual->actor =
visual_actor_new (GST_VISUAL_GET_CLASS (visual)->plugin->info->plugname);
visual->video = visual_video_new ();
visual->audio = visual_audio_new ();
/* can't have a play without actors */
if (!visual->actor || !visual->video)
goto no_actors;
if (visual_actor_realize (visual->actor) != 0)
goto no_realize;
visual_actor_set_video (visual->actor, visual->video);
visual_video_set_depth (visual->video,
visual_video_depth_enum_from_value (depth));
visual_video_set_dimension (visual->video,
GST_VIDEO_INFO_WIDTH (&bscope->vinfo),
GST_VIDEO_INFO_HEIGHT (&bscope->vinfo));
visual_actor_video_negotiate (visual->actor, 0, FALSE, FALSE);
GST_DEBUG_OBJECT (visual, "WxH: %dx%d, bpp: %d, depth: %d",
GST_VIDEO_INFO_WIDTH (&bscope->vinfo),
GST_VIDEO_INFO_HEIGHT (&bscope->vinfo), visual->video->bpp, depth);
return TRUE;
/* ERRORS */
no_actors:
{
GST_ELEMENT_ERROR (visual, LIBRARY, INIT, (NULL),
("could not create actors"));
gst_visual_clear_actors (visual);
return FALSE;
}
no_realize:
{
GST_ELEMENT_ERROR (visual, LIBRARY, INIT, (NULL),
("could not realize actor"));
gst_visual_clear_actors (visual);
return FALSE;
}
}
static GstStateChangeReturn
gst_visual_change_state (GstElement * element, GstStateChange transition)
{
GstVisual *visual = GST_VISUAL (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
visual->actor =
visual_actor_new (GST_VISUAL_GET_CLASS (visual)->plugin->
info->plugname);
visual->video = visual_video_new ();
visual->audio = visual_audio_new ();
/* can't have a play without actors */
if (!visual->actor || !visual->video)
goto no_actors;
if (visual_actor_realize (visual->actor) != 0)
goto no_realize;
visual_actor_set_video (visual->actor, visual->video);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_visual_reset (visual);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_visual_clear_actors (visual);
break;
default:
break;
}
return ret;
/* ERRORS */
no_actors:
{
GST_ELEMENT_ERROR (visual, LIBRARY, INIT, (NULL),
("could not create actors"));
gst_visual_clear_actors (visual);
return GST_STATE_CHANGE_FAILURE;
}
no_realize:
{
GST_ELEMENT_ERROR (visual, LIBRARY, INIT, (NULL),
("could not realize actor"));
gst_visual_clear_actors (visual);
return GST_STATE_CHANGE_FAILURE;
}
}
static GstStateChangeReturn
gst_visual_gl_change_state (GstElement * element, GstStateChange transition)
{
GstVisualGL *visual = GST_VISUAL_GL (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
{
GstElement *parent = GST_ELEMENT (gst_element_get_parent (visual));
GstStructure *structure = NULL;
GstQuery *query = NULL;
gboolean isPerformed = FALSE;
gchar *name;
if (!parent) {
GST_ELEMENT_ERROR (visual, CORE, STATE_CHANGE, (NULL),
("A parent bin is required"));
return FALSE;
}
name = gst_element_get_name (visual);
structure = gst_structure_new (name, NULL);
query = gst_query_new_application (GST_QUERY_CUSTOM, structure);
g_free (name);
isPerformed = gst_element_query (parent, query);
if (isPerformed) {
const GValue *id_value =
gst_structure_get_value (structure, "gstgldisplay");
if (G_VALUE_HOLDS_POINTER (id_value))
/* at least one gl element is after in our gl chain */
visual->display =
gst_object_ref (GST_GL_DISPLAY (g_value_get_pointer (id_value)));
else {
/* this gl filter is a sink in terms of the gl chain */
visual->display = gst_gl_display_new ();
gst_gl_display_create_context (visual->display, 0);
//TODO visual->external_gl_context);
}
gst_visual_gl_reset (visual);
visual->actor =
visual_actor_new (GST_VISUAL_GL_GET_CLASS (visual)->plugin->info->
plugname);
visual->video = visual_video_new ();
visual->audio = visual_audio_new ();
if (!visual->actor || !visual->video)
goto actor_setup_failed;
gst_gl_display_thread_add (visual->display,
(GstGLDisplayThreadFunc) actor_setup, visual);
if (visual->actor_setup_result != 0)
goto actor_setup_failed;
else
visual_actor_set_video (visual->actor, visual->video);
}
gst_query_unref (query);
gst_object_unref (GST_OBJECT (parent));
if (!isPerformed)
return GST_STATE_CHANGE_FAILURE;
}
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
{
if (visual->fbo) {
gst_gl_display_del_fbo (visual->display, visual->fbo,
visual->depthbuffer);
visual->fbo = 0;
visual->depthbuffer = 0;
}
if (visual->midtexture) {
gst_gl_display_del_texture (visual->display, visual->midtexture,
visual->width, visual->height);
visual->midtexture = 0;
}
if (visual->display) {
gst_object_unref (visual->display);
visual->display = NULL;
}
gst_visual_gl_clear_actors (visual);
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
/* ERRORS */
actor_setup_failed:
{
GST_ELEMENT_ERROR (visual, LIBRARY, INIT, (NULL),
("could not set up actor"));
gst_visual_gl_clear_actors (visual);
return GST_STATE_CHANGE_FAILURE;
}
}
int bg_lv_load(bg_plugin_handle_t * ret,
const char * name, int plugin_flags, const char * window_id)
{
lv_priv_t * priv;
int i;
bg_visualization_plugin_t * p;
VisVideoAttributeOptions *vidoptions;
check_init();
/* Set up callbacks */
p = calloc(1, sizeof(*p));
ret->plugin_nc = (bg_plugin_common_t*)p;
ret->plugin = ret->plugin_nc;
if(plugin_flags & BG_PLUGIN_VISUALIZE_GL)
{
p->open_win = open_gl_lv;
p->draw_frame = draw_frame_gl_lv;
p->show_frame = show_frame_lv;
}
else
{
p->open_ov = open_ov_lv;
p->draw_frame = draw_frame_ov_lv;
}
p->update = update_lv;
p->close = close_lv;
p->set_callbacks = set_callbacks_lv;
p->common.get_parameters = get_parameters_lv;
p->common.set_parameter = set_parameter_lv;
/* Set up private data */
priv = calloc(1, sizeof(*priv));
ret->priv = priv;
priv->audio = visual_audio_new();
#if 0
priv->ov_callbacks.data = priv;
priv->ov_callbacks.key_callback = key_callback;
priv->ov_callbacks.key_release_callback = key_release_callback;
priv->ov_callbacks.button_callback = button_callback;
priv->ov_callbacks.button_release_callback = button_release_callback;
priv->ov_callbacks.motion_callback = motion_callback;
#endif
/* Remove gmerlin added prefix from the plugin name */
priv->actor = visual_actor_new(name + 7);
if(plugin_flags & BG_PLUGIN_VISUALIZE_GL)
{
priv->win = bg_x11_window_create(window_id);
priv->window_callbacks.data = priv;
priv->window_callbacks.size_changed = size_changed;
priv->window_callbacks.key_callback = key_callback;
priv->window_callbacks.key_release_callback = key_release_callback;
priv->window_callbacks.button_callback = button_callback;
priv->window_callbacks.button_release_callback = button_release_callback;
priv->window_callbacks.motion_callback = motion_callback;
/* Create an OpenGL context. For this, we need the OpenGL attributes */
vidoptions = visual_actor_get_video_attribute_options(priv->actor);
for(i = 0; i < VISUAL_GL_ATTRIBUTE_LAST; i++)
{
if((vidoptions->gl_attributes[i].mutated) && (bg_attributes[i] >= 0))
{
bg_x11_window_set_gl_attribute(priv->win, bg_attributes[i],
vidoptions->gl_attributes[i].value);
}
}
/* Set bogus dimensions, will be corrected by the size_callback */
bg_x11_window_set_size(priv->win, 640, 480);
bg_x11_window_realize(priv->win);
bg_x11_window_start_gl(priv->win);
bg_x11_window_set_gl(priv->win);
}
visual_actor_realize(priv->actor);
if(plugin_flags & BG_PLUGIN_VISUALIZE_GL)
bg_x11_window_unset_gl(priv->win);
priv->parameters = create_parameters(priv->actor, &priv->widgets, &priv->params);
priv->video = visual_video_new();
return 1;
}
