-#include <gst/gst.h>\r
- \r
-int main(int argc, char *argv[]) {\r
- GstElement *pipeline, *bin, *equalizer, *convert, *sink;\r
- GstPad *pad, *ghost_pad;\r
- GstBus *bus;\r
- GstMessage *msg;\r
- \r
- /* Initialize GStreamer */\r
- gst_init (&argc, &argv);\r
- \r
- /* Build the pipeline */\r
- pipeline = gst_parse_launch ("playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm", NULL);\r
- \r
- /* Create the elements inside the sink bin */\r
- equalizer = gst_element_factory_make ("equalizer-3bands", "equalizer");\r
- convert = gst_element_factory_make ("audioconvert", "convert");\r
- sink = gst_element_factory_make ("autoaudiosink", "audio_sink");\r
- if (!equalizer || !convert || !sink) {\r
- g_printerr ("Not all elements could be created.\n");\r
- return -1;\r
- }\r
- \r
- /* Create the sink bin, add the elements and link them */\r
- bin = gst_bin_new ("audio_sink_bin");\r
- gst_bin_add_many (GST_BIN (bin), equalizer, convert, sink, NULL);\r
- gst_element_link_many (equalizer, convert, sink, NULL);\r
- pad = gst_element_get_static_pad (equalizer, "sink");\r
- ghost_pad = gst_ghost_pad_new ("sink", pad);\r
- gst_pad_set_active (ghost_pad, TRUE);\r
- gst_element_add_pad (bin, ghost_pad);\r
- gst_object_unref (pad);\r
- \r
- /* Configure the equalizer */\r
- g_object_set (G_OBJECT (equalizer), "band1", (gdouble)-24.0, NULL);\r
- g_object_set (G_OBJECT (equalizer), "band2", (gdouble)-24.0, NULL);\r
- \r
- /* Set playbin2's audio sink to be our sink bin */\r
- g_object_set (GST_OBJECT (pipeline), "audio-sink", bin, NULL);\r
- \r
- /* Start playing */\r
- gst_element_set_state (pipeline, GST_STATE_PLAYING);\r
- \r
- /* Wait until error or EOS */\r
- bus = gst_element_get_bus (pipeline);\r
- msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);\r
- \r
- /* Free resources */\r
- if (msg != NULL)\r
- gst_message_unref (msg);\r
- gst_object_unref (bus);\r
- gst_element_set_state (pipeline, GST_STATE_NULL);\r
- gst_object_unref (pipeline);\r
- return 0;\r
-}\r
+#include <gst/gst.h>
+
+int main(int argc, char *argv[]) {
+ GstElement *pipeline, *bin, *equalizer, *convert, *sink;
+ GstPad *pad, *ghost_pad;
+ GstBus *bus;
+ GstMessage *msg;
+
+ /* Initialize GStreamer */
+ gst_init (&argc, &argv);
+
+ /* Build the pipeline */
+ pipeline = gst_parse_launch ("playbin uri=https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm", NULL);
+
+ /* Create the elements inside the sink bin */
+ equalizer = gst_element_factory_make ("equalizer-3bands", "equalizer");
+ convert = gst_element_factory_make ("audioconvert", "convert");
+ sink = gst_element_factory_make ("autoaudiosink", "audio_sink");
+ if (!equalizer || !convert || !sink) {
+ g_printerr ("Not all elements could be created.\n");
+ return -1;
+ }
+
+ /* Create the sink bin, add the elements and link them */
+ bin = gst_bin_new ("audio_sink_bin");
+ gst_bin_add_many (GST_BIN (bin), equalizer, convert, sink, NULL);
+ gst_element_link_many (equalizer, convert, sink, NULL);
+ pad = gst_element_get_static_pad (equalizer, "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);
+
+ /* Configure the equalizer */
+ g_object_set (G_OBJECT (equalizer), "band1", (gdouble)-24.0, NULL);
+ g_object_set (G_OBJECT (equalizer), "band2", (gdouble)-24.0, NULL);
+
+ /* Set playbin2's audio sink to be our sink bin */
+ g_object_set (GST_OBJECT (pipeline), "audio-sink", bin, NULL);
+
+ /* Start playing */
+ gst_element_set_state (pipeline, GST_STATE_PLAYING);
+
+ /* Wait until error or EOS */
+ bus = gst_element_get_bus (pipeline);
+ msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
+
+ /* Free resources */
+ if (msg != NULL)
+ gst_message_unref (msg);
+ gst_object_unref (bus);
+ gst_element_set_state (pipeline, GST_STATE_NULL);
+ gst_object_unref (pipeline);
+ return 0;
+}