//
// STARTUP
///////////////////////////////////////////////////////////////////////////////
// (static) super-initialization - called once at application startup
bool LLMediaImplGStreamer::startup (LLMediaManagerData* init_data)
{
static bool done_init = false;
if (!done_init)
{
// Init the glib type system - we need it.
g_type_init();
set_gst_plugin_path();
// Protect against GStreamer resetting the locale, yuck.
static std::string saved_locale;
saved_locale = setlocale(LC_ALL, NULL);
if (0 == gst_init_check(NULL, NULL, NULL))
{
LL_WARNS("MediaImpl") << "GStreamer library failed to initialize and load standard plugins." << LL_ENDL;
setlocale(LC_ALL, saved_locale.c_str() );
return false;
}
setlocale(LC_ALL, saved_locale.c_str() );
// Set up logging facilities
gst_debug_remove_log_function( gst_debug_log_default );
gst_debug_add_log_function( gstreamer_log, NULL );
// Init our custom plugins - only really need do this once.
gst_slvideo_init_class();
// List the plugins GStreamer can find
LL_DEBUGS("MediaImpl") << "Found GStreamer plugins:" << LL_ENDL;
GList *list;
GstRegistry *registry = gst_registry_get_default();
std::string loaded = "";
for (list = gst_registry_get_plugin_list(registry);
list != NULL;
list = g_list_next(list))
{
GstPlugin *list_plugin = (GstPlugin *)list->data;
(bool)gst_plugin_is_loaded(list_plugin) ? loaded = "Yes" : loaded = "No";
LL_DEBUGS("MediaImpl") << gst_plugin_get_name(list_plugin) << ", loaded? " << loaded << LL_ENDL;
}
gst_plugin_list_free(list);
done_init = true;
}
return true;
}
/**
* gst_plugin_load:
* @plugin: plugin to load
*
* Loads @plugin. Note that the *return value* is the loaded plugin; @plugin is
* untouched. The normal use pattern of this function goes like this:
*
* <programlisting>
* GstPlugin *loaded_plugin;
* loaded_plugin = gst_plugin_load (plugin);
* // presumably, we're no longer interested in the potentially-unloaded plugin
* gst_object_unref (plugin);
* plugin = loaded_plugin;
* </programlisting>
*
* Returns: A reference to a loaded plugin, or NULL on error.
*/
GstPlugin *
gst_plugin_load (GstPlugin * plugin)
{
GError *error = NULL;
GstPlugin *newplugin;
if (gst_plugin_is_loaded (plugin)) {
return plugin;
}
if (!(newplugin = gst_plugin_load_file (plugin->filename, &error)))
goto load_error;
return newplugin;
load_error:
{
GST_WARNING ("load_plugin error: %s", error->message);
g_error_free (error);
return NULL;
}
}
//static
bool
MediaPluginGStreamer010::startup()
{
// first - check if GStreamer is explicitly disabled
if (NULL != getenv("LL_DISABLE_GSTREAMER"))
return false;
// only do global GStreamer initialization once.
if (!mDoneInit)
{
g_thread_init(NULL);
// Init the glib type system - we need it.
g_type_init();
set_gst_plugin_path();
/*
// Get symbols!
#if LL_DARWIN
if (! grab_gst_syms("libgstreamer-0.10.dylib",
"libgstvideo-0.10.dylib") )
#elseif LL_WINDOWS
if (! grab_gst_syms("libgstreamer-0.10.dll",
"libgstvideo-0.10.dll") )
#else // linux or other ELFy unixoid
if (! grab_gst_syms("libgstreamer-0.10.so.0",
"libgstvideo-0.10.so.0") )
#endif
{
writeToLog("Couldn't find suitable GStreamer 0.10 support on this system - video playback disabled.");
return false;
}
*/
// if (gst_segtrap_set_enabled)
// {
gst_segtrap_set_enabled(FALSE);
// }
// else
// {
// writeToLog("gst_segtrap_set_enabled() is not available; plugin crashes won't be caught.");
// }
/*
#if LL_LINUX
// Gstreamer tries a fork during init, waitpid-ing on it,
// which conflicts with any installed SIGCHLD handler...
struct sigaction tmpact, oldact;
if (gst_registry_fork_set_enabled) {
// if we can disable SIGCHLD-using forking behaviour,
// do it.
gst_registry_fork_set_enabled(false);
}
else {
// else temporarily install default SIGCHLD handler
// while GStreamer initialises
tmpact.sa_handler = SIG_DFL;
sigemptyset( &tmpact.sa_mask );
tmpact.sa_flags = SA_SIGINFO;
sigaction(SIGCHLD, &tmpact, &oldact);
}
#endif // LL_LINUX
*/
// Protect against GStreamer resetting the locale, yuck.
static std::string saved_locale;
saved_locale = setlocale(LC_ALL, NULL);
// finally, try to initialize GStreamer!
GError *err = NULL;
gboolean init_gst_success = gst_init_check(NULL, NULL, &err);
// restore old locale
setlocale(LC_ALL, saved_locale.c_str() );
/*
#if LL_LINUX
// restore old SIGCHLD handler
if (!gst_registry_fork_set_enabled)
sigaction(SIGCHLD, &oldact, NULL);
#endif // LL_LINUX
*/
if (!init_gst_success) // fail
{
if (err)
{
writeToLog("GST init failed: %s", err->message);
g_error_free(err);
}
else
{
writeToLog("GST init failed for unspecified reason.");
}
return false;
}
// Set up logging facilities
gst_debug_remove_log_function( gst_debug_log_default );
// gst_debug_add_log_function( gstreamer_log, NULL );
// Init our custom plugins - only really need do this once.
gst_slvideo_init_class();
// List the plugins GStreamer can find
writeToLog("Found GStreamer plugins:");
GList *list;
GstRegistry *registry = gst_registry_get_default();
std::string loaded = "No";
for (list = gst_registry_get_plugin_list(registry);
list != NULL;
list = g_list_next(list))
{
GstPlugin *list_plugin = (GstPlugin *)list->data;
if (gst_plugin_is_loaded(list_plugin)) loaded = "Yes";
writeToLog("%s, loaded? %s", gst_plugin_get_name(list_plugin), loaded.c_str());
}
gst_plugin_list_free(list);
mDoneInit = true;
}
return true;
}
/* Method: loaded?
* Returns: true if the plugin is loaded into memory, false otherwise.
*/
static VALUE
rb_gst_plugin_is_loaded (VALUE self)
{
GstPlugin *plugin = RGST_PLUGIN (self);
return CBOOL2RVAL (gst_plugin_is_loaded (plugin));
}
int main(int argc, char *argv[])
{
GstElement *pipeline, *bin, *effect_element, *convert, *sink;
GstPad *pad, *ghost_pad;
char *pipeline_str;
GIOChannel *io_stdin = g_io_channel_unix_new(fileno(stdin));
CustomData data;
GstStateChangeReturn ret;
gboolean list_effects = FALSE;
gchar *effect_name = NULL;
GError *error = NULL;
GstPlugin *gaudiplugin;
gchar *props_str = NULL;
GOptionContext *context;
GOptionEntry options[] = {
{ "list-effects", 'l', 0, G_OPTION_ARG_NONE, &list_effects,
"list available effects and exits", NULL },
{ "effect", 'e', 0, G_OPTION_ARG_STRING, &effect_name,
"set the desired effect", NULL },
{ "props", 'p', 0, G_OPTION_ARG_STRING, &props_str,
"for property setting (-p \"silent,bool,true;adjustement,uint,150\")",
NULL },
{ NULL }
};
setlocale(LC_ALL, "fr_FR.utf8");
gst_init(&argc, &argv);
gaudiplugin = gst_registry_find_plugin(GET_PLUGIN_REGISTRY, "gaudieffects");
if (gaudiplugin == NULL) {
g_print("Pas de plugin “gaudieffects” trouvé !! :(\n");
return -1;
}
context = g_option_context_new("");
g_option_context_add_main_entries(context, options, "");
if (!g_option_context_parse(context, &argc, &argv, &error)) {
g_print("option parsing failed: %s\n", error->message);
return -1;
}
g_option_context_free(context);
if (list_effects == TRUE)
return list_gaudieffects_features();
if (argc > 1) {
if (g_str_has_prefix(argv[1], "http://") ||
g_str_has_prefix(argv[1], "ftp://"))
pipeline_str = g_strdup_printf("%s uri=\"%s\"", PLAYBIN, argv[1]);
else if (argv[1][0] == '~')
pipeline_str = g_strdup_printf("%s uri=\"file://%s%s\"", PLAYBIN,
g_get_home_dir(), argv[1]+1);
else if (g_file_test(argv[1], G_FILE_TEST_IS_REGULAR))
pipeline_str = g_strdup_printf("playbin uri=\"file://%s\"", argv[1]);
else
pipeline_str = g_strdup_printf("%s uri=%s", PLAYBIN, DEFAULT_URI);
} else
pipeline_str = g_strdup_printf("%s uri=%s", PLAYBIN, DEFAULT_URI);
g_io_add_watch(io_stdin, G_IO_IN, (GIOFunc)handle_keyboard, &data);
pipeline = gst_parse_launch(pipeline_str, NULL);
if (gst_plugin_is_loaded(gaudiplugin) == FALSE)
gst_plugin_load(gaudiplugin);
if (effect_name == NULL)
effect_name = "solarize";
effect_element = gst_element_factory_make(effect_name, effect_name);
convert = gst_element_factory_make("videoconvert", "convert");
sink = gst_element_factory_make("autovideosink", "video_sink");
if (!effect_element || !convert || !sink) {
g_printerr("Not all elements could be created.\n");
return -1;
}
bin = gst_bin_new("video_sink_bin");
gst_bin_add_many(GST_BIN(bin), effect_element, convert, sink, NULL);
gst_element_link_many(effect_element, convert, sink, NULL);
pad = gst_element_get_static_pad(effect_element, "sink");
ghost_pad = gst_ghost_pad_new("sink", pad);
gst_pad_set_active(ghost_pad, TRUE);
gst_element_add_pad(bin, ghost_pad);
gst_object_unref(pad);
g_object_set(GST_OBJECT(pipeline), "video-sink", bin, NULL);
if (props_str != NULL)
set_props(effect_element, props_str);
ret = gst_element_set_state(pipeline, GST_STATE_PLAYING);
if (ret == GST_STATE_CHANGE_FAILURE) {
g_printerr("Unable to set the pipeline to the playing state.\n");
gst_object_unref(pipeline);
return -1;
}
data.loop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(data.loop);
g_io_channel_unref(io_stdin);
gst_element_set_state(pipeline, GST_STATE_NULL);
gst_object_unref(pipeline);
return 0;
}
