I just know the Gstreamer.
Sample code attached.
From: [email protected] [mailto:[email protected]] On
Behalf Of Stylianou, Costas
Sent: Wednesday, July 27, 2011 6:35 AM
To: [email protected]
Subject: [MeeGo-dev] playing .ogg audio files in meego
Hi,
Can someone tell me the correct API's to use to playback an .ogg audio files
within my applications, should I be using Qtmultimedia or Gstreamer (which
plugin?), any sample code or docs that you can point me too?
Many thanks
Costas
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#include <gst/gst.h>
#include <glib.h>
#include <glib/giochannel.h>
#include <stdio.h>
enum {
Play,
Stop,
Pause,
N_CONTROL
};
char *control_name[N_CONTROL] = {
"Play",
"Stop",
"Pause"
};
static void shell_help ()
{
int i;
for (i=0; i<N_CONTROL; i++) {
g_print ("'%d': to '%s'\n", i, control_name[i]);
}
g_print ("'?': to display this help info\n");
g_print ("'h': to display this help info\n");
g_print ("'q': to quit\n");
}
static GstElement *player;
static GMainLoop *loop;
gboolean method_call (gpointer control_id_p)
{
gint control_id = *((gint *)control_id_p);
switch (control_id)
{
case Play:
gst_element_set_state (player, GST_STATE_PLAYING);
break;
case Stop:
gst_element_set_state (player, GST_STATE_NULL);
break;
case Pause:
gst_element_set_state (player, GST_STATE_PAUSED);
break;
default:
g_print ("Unknown control id = %d\n", control_id);
break;
}
return FALSE;
}
static gboolean
channel_cb(GIOChannel *source, GIOCondition condition, gpointer data)
{
gchar buf[1024];
GstElement *player;
gint rc;
player = (GstElement *)data;
if (condition != G_IO_IN) {
return TRUE;
}
/* we've received something on stdin. */
rc = fscanf(stdin, "%s", buf);
if (rc <= 0) {
g_print("NULL\n");
return TRUE;
}
if (!strcmp(buf, "h")) {
shell_help();
} else if (!strcmp(buf, "?")) {
shell_help();
} else if (!strcmp(buf, "q")) {
g_main_loop_quit(loop);
} else if ('0' <= buf[0] && buf[0] <= (N_CONTROL + 48)){
gint control_id = buf[0] - 48;
g_idle_add (method_call, &control_id);
} else {
g_print("Unknown command '%s'\n", buf);
}
return TRUE;
}
int main (int argc, char **argv)
{
GIOChannel *chan;
gchar *uri;
if (argc == 1){
g_print ("Usage: player.x uri_to_playbin2");
g_print ("Example: player.x file:///root/720p.m4v");
return 0;
}
uri = argv[1];
/* Initialisation */
gst_init (&argc, &argv);
player = gst_element_factory_make ("playbin2", NULL);
g_object_set (G_OBJECT(player), "uri", uri, NULL);
gst_element_set_state (player, GST_STATE_PLAYING);
chan = g_io_channel_unix_new(0);
g_io_add_watch(chan, G_IO_IN, channel_cb, player);
loop = g_main_loop_new (NULL, FALSE);
g_main_loop_run (loop);
gst_element_set_state (player, GST_STATE_NULL);
gst_object_unref (player);
g_print ("Quit....\n");
return 0;
}
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