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Hi all,
As I’m a begginer on gstreamer, I have faced some problem
in my application.
I made a play sound function using gstreamer 1.0 and it
worked fine.
But problem is, after finishing a sound play, there is some memory
leak.
Could you please check if my code there is something
wrong? FYI, gst_init() was called in main function at startup
stage.
play_sound was called from time to time as needed with
differenent source file.
BRs,
Peter.
static GstElement *sound_pipeline;
static GMainLoop *loop;
static gboolean
music_bus_call (GstBus *bus,
GstMessage
*msg,
gpointer data)
{
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_EOS:
LOG ("End of stream\n");
g_main_loop_quit (loop);
break;
case GST_MESSAGE_ERROR: {
gchar *debug;
GError *error;
gst_message_parse_error (msg, &error,
&debug);
g_free (debug);
LOG ("Error: %s\n",
error->message);
g_error_free (error);
g_main_loop_quit (loop);
break;
}
default:
break;
}
return TRUE;
}
static GstElement *converter, *sink;
static void
music_on_pad_added (GstElement *element,
GstPad *pad,
gpointer data)
{
GstPad *sinkpad;
GstCaps *caps;
GstStructure *str;
GstElement *conv = (GstElement *) data;
/* We can now link this pad with the vorbis-decoder sink pad
*/
g_print ("Dynamic pad creating, linking decoder/converter\n");
/* check media type */
caps = gst_pad_query_caps (pad, NULL);
str = gst_caps_get_structure (caps, 0);
if (g_strrstr (gst_structure_get_name (str), "audio")) {
sinkpad = gst_element_get_static_pad (conv,
"sink");
gst_pad_link(pad, sinkpad);
LOG("music_on_pad_added Linked \n");
}
gst_caps_unref (caps);
gst_object_unref (sinkpad);
}
int
play_sound (char *soundfile)
{
GstElement *decoder;
GstBus *bus;
guint bus_watch_id;
int argc=1;
char *args[]={"ui-sound",""};
char **argv=args;
/* Initialisation */
//gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
/* Create gstreamer elements */
sound_pipeline = gst_pipeline_new ("audio-player");
decoder =
gst_element_factory_make( "uridecodebin", "uri-decode-bin" );
converter = gst_element_factory_make
("audioconvert", "converter");
sink = gst_element_factory_make
("autoaudiosink", "audio-output");
if (!sound_pipeline || !decoder || !converter || !sink) {
LOG ("PLAY_SOUND : One element could not be created.
Exiting.\n");
return -1;
}
/* Set up the pipeline */
/* we set the input filename to the source element */
g_object_set( G_OBJECT(decoder), "uri", soundfile, NULL );
/* we add a message handler */
bus = gst_pipeline_get_bus (GST_PIPELINE (sound_pipeline));
bus_watch_id = gst_bus_add_watch (bus, music_bus_call, loop);
gst_object_unref (bus);
gst_bin_add_many (GST_BIN
(sound_pipeline),decoder, converter, sink, NULL);
g_signal_connect( decoder, "pad-added",
G_CALLBACK(music_on_pad_added), converter );
GstCaps *caps = gst_caps_new_simple(
"audio/x-raw",
"format", G_TYPE_STRING, "S16LE",
NULL );
if(!gst_element_link_filtered( converter, sink,
caps ))
LOG("gst_element_link_filtered( converter, sink failed\n");;
gst_caps_unref (caps);
/* Set the pipeline to "playing" state*/
LOG ("PLAY_SOUND : Now playing: %s\n", soundfile);
gst_element_set_state (sound_pipeline, GST_STATE_PLAYING);
/* Iterate */
LOG ("Sound Running...\n");
g_main_loop_run (loop);
/* Out of the main loop, clean up nicely */
LOG ("Returned, stopping playback\n");
gst_element_set_state (sound_pipeline, GST_STATE_NULL);
LOG ("Deleting pipeline\n");
gst_object_unref (GST_OBJECT (sound_pipeline));
g_source_remove (bus_watch_id);
g_main_loop_unref (loop);
loop=NULL;
sound_pipeline=NULL;
//gst_deinit();
return 0;
}
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