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ba5cecf321
Original commit message from CVS: * examples/Makefile.am: * examples/helloworld/helloworld.c: (event_loop), (main): * examples/queue/queue.c: (event_loop), (main): * examples/queue2/queue2.c: (main): Update a couple of the examples to work again. * gst/base/gstbasesink.c: (gst_base_sink_preroll_queue_empty), (gst_base_sink_preroll_queue_flush), (gst_base_sink_handle_event): Spelling corrections and extra debug. * gst/gstbin.c: (gst_bin_class_init), (gst_bin_init), (is_eos), (gst_bin_add_func), (bin_element_is_sink), (gst_bin_get_state), (gst_bin_change_state), (gst_bin_dispose), (bin_bus_handler): * gst/gstbin.h: * gst/gstpipeline.c: (gst_pipeline_init), (gst_pipeline_dispose), (gst_pipeline_change_state): * gst/gstpipeline.h: Move the bus handler for children to the GstBin, and create a separate bus for receiving messages from children to the one the bus sends 'upwards' on.
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
#include <stdlib.h>
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#include <gst/gst.h>
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static void
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event_loop (GstElement * pipe)
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{
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GstBus *bus;
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GstMessageType revent;
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GstMessage *message = NULL;
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bus = gst_element_get_bus (GST_ELEMENT (pipe));
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while (TRUE) {
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revent = gst_bus_poll (bus, GST_MESSAGE_ANY, -1);
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message = gst_bus_pop (bus);
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g_assert (message != NULL);
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switch (revent) {
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case GST_MESSAGE_EOS:
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gst_message_unref (message);
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return;
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case GST_MESSAGE_WARNING:
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case GST_MESSAGE_ERROR:{
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GError *gerror;
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gchar *debug;
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gst_message_parse_error (message, &gerror, &debug);
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gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
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gst_message_unref (message);
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g_error_free (gerror);
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g_free (debug);
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return;
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}
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default:
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gst_message_unref (message);
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break;
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}
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}
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}
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int
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main (int argc, char *argv[])
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{
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GstElement *bin, *filesrc, *decoder, *audiosink;
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gst_init (&argc, &argv);
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if (argc != 2) {
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g_print ("usage: %s <mp3 file>\n", argv[0]);
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exit (-1);
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}
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/* create a new bin to hold the elements */
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bin = gst_pipeline_new ("pipeline");
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g_assert (bin);
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/* create a disk reader */
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filesrc = gst_element_factory_make ("filesrc", "disk_source");
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g_assert (filesrc);
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g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
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/* now it's time to get the decoder */
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decoder = gst_element_factory_make ("mad", "decode");
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if (!decoder) {
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g_print ("could not find plugin \"mad\"");
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return -1;
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}
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/* and an audio sink */
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audiosink = gst_element_factory_make ("alsasink", "play_audio");
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g_assert (audiosink);
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/* add objects to the main pipeline */
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gst_bin_add_many (GST_BIN (bin), filesrc, decoder, audiosink, NULL);
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/* link the elements */
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gst_element_link_many (filesrc, decoder, audiosink, NULL);
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/* start playing */
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gst_element_set_state (bin, GST_STATE_PLAYING);
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/* Run event loop listening for bus messages until EOS or ERROR */
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event_loop (bin);
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/* stop the bin */
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gst_element_set_state (bin, GST_STATE_NULL);
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exit (0);
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}
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