mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-29 21:21:12 +00:00
Code Issues 1 Projects Releases Wiki Activity

Fix the helloworld example.

Browse source 
Original commit message from CVS:
Fix the helloworld example.
This commit is contained in:
Wim Taymans 2002-01-06 19:00:14 +00:00
parent 2e4818ba0e
commit 3de9788e32
2 changed files with 18 additions and 92 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

55
examples/helloworld/helloworld.c
View file

@ -1,24 +1,14 @@
#include <stdlib.h> #include <stdlib.h>
#include <gst/gst.h> #include <gst/gst.h>
gboolean playing;
/* eos will be called when the src element has an end of stream */
void eos(GstElement *element)
{
g_print("have eos, quitting\n");
playing = FALSE;
}
int main(int argc,char *argv[]) int main(int argc,char *argv[])
{ {
GstElement *bin, *filesrc, *parse, *decoder, *downmix, *mulaw, *mulawdec, *osssink; GstElement *bin, *filesrc, *decoder, *osssink;
gst_init(&argc,&argv); gst_init(&argc,&argv);
if (argc != 2) { if (argc != 2) {
g_print("usage: %s <filename>\n", argv[0]); g_print("usage: %s <mp3 file>\n", argv[0]);
exit(-1); exit(-1);
} }
@ -28,62 +18,35 @@ int main(int argc,char *argv[])
/* create a disk reader */ /* create a disk reader */
filesrc = gst_elementfactory_make("filesrc", "disk_source"); filesrc = gst_elementfactory_make("filesrc", "disk_source");
g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL); g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL);
g_signal_connect(G_OBJECT(filesrc),"eos",
G_CALLBACK(eos),NULL);
/* now it's time to get the parser */ /* now it's time to get the decoder */
parse = gst_elementfactory_make("mp3parse","parse"); decoder = gst_elementfactory_make("mad","parse");
decoder = gst_elementfactory_make("mpg123","decoder"); if (!decoder) {
downmix = gst_elementfactory_make("stereo2mono","stereo2mono"); g_print ("could not find plugin \"mad\"");
mulaw = gst_elementfactory_make("mulawencode","mulaw"); return -1;
mulawdec = gst_elementfactory_make("mulawdecode","mulawdec"); }
/* and an audio sink */ /* and an audio sink */
osssink = gst_elementfactory_make("osssink", "play_audio"); osssink = gst_elementfactory_make("osssink", "play_audio");
/* add objects to the main pipeline */ /* add objects to the main pipeline */
gst_bin_add(GST_BIN(bin), filesrc); gst_bin_add(GST_BIN(bin), filesrc);
gst_bin_add(GST_BIN(bin), parse);
gst_bin_add(GST_BIN(bin), decoder); gst_bin_add(GST_BIN(bin), decoder);
gst_bin_add(GST_BIN(bin), downmix);
gst_bin_add(GST_BIN(bin), mulaw);
gst_bin_add(GST_BIN(bin), mulawdec);
gst_bin_add(GST_BIN(bin), osssink); gst_bin_add(GST_BIN(bin), osssink);
/* connect src to sink */ /* connect src to sink */
gst_pad_connect(gst_element_get_pad(filesrc,"src"), gst_pad_connect(gst_element_get_pad(filesrc,"src"),
gst_element_get_pad(parse,"sink"));
gst_pad_connect(gst_element_get_pad(parse,"src"),
gst_element_get_pad(decoder,"sink")); gst_element_get_pad(decoder,"sink"));
gst_pad_connect(gst_element_get_pad(decoder,"src"), gst_pad_connect(gst_element_get_pad(decoder,"src"),
gst_element_get_pad(downmix,"sink"));
gst_pad_connect(gst_element_get_pad(downmix,"src"),
gst_element_get_pad(mulaw,"sink"));
gst_pad_connect(gst_element_get_pad(mulaw,"src"),
gst_element_get_pad(mulawdec,"sink"));
gst_pad_connect(gst_element_get_pad(mulawdec,"src"),
gst_element_get_pad(osssink,"sink")); gst_element_get_pad(osssink,"sink"));
/* start playing */ /* start playing */
gst_element_set_state(bin, GST_STATE_PLAYING); gst_element_set_state(bin, GST_STATE_PLAYING);
playing = TRUE; while (gst_bin_iterate(GST_BIN(bin)));
while (playing) {
gst_bin_iterate(GST_BIN(bin));
}
/* stop the bin */ /* stop the bin */
gst_element_set_state(bin, GST_STATE_NULL); gst_element_set_state(bin, GST_STATE_NULL);
gst_object_destroy(GST_OBJECT(osssink));
gst_object_destroy(GST_OBJECT(parse));
gst_object_destroy(GST_OBJECT(decoder));
gst_object_destroy(GST_OBJECT(downmix));
gst_object_destroy(GST_OBJECT(mulaw));
gst_object_destroy(GST_OBJECT(mulawdec));
gst_object_destroy(GST_OBJECT(filesrc));
gst_object_destroy(GST_OBJECT(bin));
exit(0); exit(0);
} }

55
tests/old/examples/helloworld/helloworld.c
View file

@ -1,24 +1,14 @@
#include <stdlib.h> #include <stdlib.h>
#include <gst/gst.h> #include <gst/gst.h>
gboolean playing;
/* eos will be called when the src element has an end of stream */
void eos(GstElement *element)
{
g_print("have eos, quitting\n");
playing = FALSE;
}
int main(int argc,char *argv[]) int main(int argc,char *argv[])
{ {
GstElement *bin, *filesrc, *parse, *decoder, *downmix, *mulaw, *mulawdec, *osssink; GstElement *bin, *filesrc, *decoder, *osssink;
gst_init(&argc,&argv); gst_init(&argc,&argv);
if (argc != 2) { if (argc != 2) {
g_print("usage: %s <filename>\n", argv[0]); g_print("usage: %s <mp3 file>\n", argv[0]);
exit(-1); exit(-1);
} }
@ -28,62 +18,35 @@ int main(int argc,char *argv[])
/* create a disk reader */ /* create a disk reader */
filesrc = gst_elementfactory_make("filesrc", "disk_source"); filesrc = gst_elementfactory_make("filesrc", "disk_source");
g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL); g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL);
g_signal_connect(G_OBJECT(filesrc),"eos",
G_CALLBACK(eos),NULL);
/* now it's time to get the parser */ /* now it's time to get the decoder */
parse = gst_elementfactory_make("mp3parse","parse"); decoder = gst_elementfactory_make("mad","parse");
decoder = gst_elementfactory_make("mpg123","decoder"); if (!decoder) {
downmix = gst_elementfactory_make("stereo2mono","stereo2mono"); g_print ("could not find plugin \"mad\"");
mulaw = gst_elementfactory_make("mulawencode","mulaw"); return -1;
mulawdec = gst_elementfactory_make("mulawdecode","mulawdec"); }
/* and an audio sink */ /* and an audio sink */
osssink = gst_elementfactory_make("osssink", "play_audio"); osssink = gst_elementfactory_make("osssink", "play_audio");
/* add objects to the main pipeline */ /* add objects to the main pipeline */
gst_bin_add(GST_BIN(bin), filesrc); gst_bin_add(GST_BIN(bin), filesrc);
gst_bin_add(GST_BIN(bin), parse);
gst_bin_add(GST_BIN(bin), decoder); gst_bin_add(GST_BIN(bin), decoder);
gst_bin_add(GST_BIN(bin), downmix);
gst_bin_add(GST_BIN(bin), mulaw);
gst_bin_add(GST_BIN(bin), mulawdec);
gst_bin_add(GST_BIN(bin), osssink); gst_bin_add(GST_BIN(bin), osssink);
/* connect src to sink */ /* connect src to sink */
gst_pad_connect(gst_element_get_pad(filesrc,"src"), gst_pad_connect(gst_element_get_pad(filesrc,"src"),
gst_element_get_pad(parse,"sink"));
gst_pad_connect(gst_element_get_pad(parse,"src"),
gst_element_get_pad(decoder,"sink")); gst_element_get_pad(decoder,"sink"));
gst_pad_connect(gst_element_get_pad(decoder,"src"), gst_pad_connect(gst_element_get_pad(decoder,"src"),
gst_element_get_pad(downmix,"sink"));
gst_pad_connect(gst_element_get_pad(downmix,"src"),
gst_element_get_pad(mulaw,"sink"));
gst_pad_connect(gst_element_get_pad(mulaw,"src"),
gst_element_get_pad(mulawdec,"sink"));
gst_pad_connect(gst_element_get_pad(mulawdec,"src"),
gst_element_get_pad(osssink,"sink")); gst_element_get_pad(osssink,"sink"));
/* start playing */ /* start playing */
gst_element_set_state(bin, GST_STATE_PLAYING); gst_element_set_state(bin, GST_STATE_PLAYING);
playing = TRUE; while (gst_bin_iterate(GST_BIN(bin)));
while (playing) {
gst_bin_iterate(GST_BIN(bin));
}
/* stop the bin */ /* stop the bin */
gst_element_set_state(bin, GST_STATE_NULL); gst_element_set_state(bin, GST_STATE_NULL);
gst_object_destroy(GST_OBJECT(osssink));
gst_object_destroy(GST_OBJECT(parse));
gst_object_destroy(GST_OBJECT(decoder));
gst_object_destroy(GST_OBJECT(downmix));
gst_object_destroy(GST_OBJECT(mulaw));
gst_object_destroy(GST_OBJECT(mulawdec));
gst_object_destroy(GST_OBJECT(filesrc));
gst_object_destroy(GST_OBJECT(bin));
exit(0); exit(0);
} }