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Use custom GMainContext to avoid potential interference with other libraries using GLib

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This commit is contained in:
Xavi Artigas 2012-09-19 12:18:41 +02:00
parent 8876ada4ea
commit 9cdcecf4f8
1 changed files with 18 additions and 10 deletions
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28
gst-sdk/tutorials/android-tutorial-1/jni/tutorial-1.c
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@ -184,11 +184,15 @@ static void *app_function (void *userdata) {
GstBus *bus;
GstMessage *msg;
CustomData *data = (CustomData *)userdata;
guint timeout_source_id;
GSource *timeout_source;
GSource *bus_source;
GMainContext *context;
GST_DEBUG ("Creating pipeline in CustomData at %p", data);
/* create our own GLib Main Context, so we do not interfere with other libraries using GLib */
context = g_main_context_new ();
// data->pipeline = gst_parse_launch ("videotestsrc ! eglglessink force_rendering_slow=1 can_create_window=0 name=vsink", NULL);
data->pipeline = gst_parse_launch ("filesrc location=/sdcard/Movies/sintel_trailer-480p.ogv ! oggdemux ! theoradec ! ffmpegcolorspace ! eglglessink name=vsink force_rendering_slow=1 can_create_window=0", NULL);
// data->pipeline = gst_parse_launch ("souphttpsrc location=http://docs.gstreamer.com/media/sintel_trailer-480p.ogv ! oggdemux ! theoradec ! eglglessink name=vsink force_rendering_slow=1 can_create_window=0", NULL);
@ -202,30 +206,34 @@ static void *app_function (void *userdata) {
/* Instruct the bus to emit signals for each received message, and connect to the interesting signals */
bus = gst_element_get_bus (data->pipeline);
gst_bus_add_signal_watch (bus);
bus_source = gst_bus_create_watch (bus);
g_source_set_callback (bus_source, (GSourceFunc) gst_bus_async_signal_func, NULL, NULL);
g_source_attach (bus_source, context);
g_source_unref (bus_source);
g_signal_connect (G_OBJECT (bus), "message::error", (GCallback)error_cb, data);
g_signal_connect (G_OBJECT (bus), "message::eos", (GCallback)eos_cb, data);
g_signal_connect (G_OBJECT (bus), "message::state-changed", (GCallback)state_changed_cb, data);
gst_object_unref (bus);
/* Register a function that GLib will call every second */
timeout_source_id = g_timeout_add_seconds (1, (GSourceFunc)refresh_ui, data);
/* Register a function that GLib will call 4 times per second */
timeout_source = g_timeout_source_new (250);
g_source_attach (timeout_source, context);
g_source_set_callback (timeout_source, (GSourceFunc)refresh_ui, data, NULL);
g_source_unref (timeout_source);
/* Create a GLib Main Loop and set it to run */
GST_DEBUG ("Entering main loop... (CustomData:%p)", data);
data->main_loop = g_main_loop_new (NULL, FALSE);
data->main_loop = g_main_loop_new (context, FALSE);
check_initialization_complete (data);
g_main_loop_run (data->main_loop);
GST_DEBUG ("Exited main loop");
g_main_loop_unref (data->main_loop);
data->main_loop = NULL;
/* Destroy the timeout source */
timeout_source = g_main_context_find_source_by_id (NULL, timeout_source_id);
GST_DEBUG ("timeout_source:%p", timeout_source);
g_source_destroy (timeout_source);
/* Free resources */
g_source_destroy (timeout_source);
g_source_destroy (bus_source);
g_main_context_unref (context);
gst_element_set_state (data->pipeline, GST_STATE_NULL);
gst_object_unref (data->vsink);
gst_object_unref (data->pipeline);