added a struct to set up input channels

Original commit message from CVS:
added a struct to set up input channels
parent 8249fcfe
#include <stdlib.h>
#include <gst/gst.h>
#include "mixer.h"
#define DEBUG
/* function prototypes */
input_pipe_t* create_input_pipe (int id, char* location);
void destroy_input_pipe (input_pipe_t *pipe);
gboolean playing;
......@@ -17,9 +26,10 @@ void eos(GstElement *element)
int main(int argc,char *argv[])
{
GstElement *bin_in1, *bin_in2, *main_bin;
GstElement *disksrc1, *decoder1, *volenv1;
GstElement *disksrc2, *decoder2, *volenv2;
input_pipe_t *channel_in1;
input_pipe_t *channel_in2;
GstElement *main_bin;
GstElement *adder;
GstElement *audiosink;
......@@ -32,64 +42,11 @@ int main(int argc,char *argv[])
exit(-1);
}
/* create input bins */
/* create bins to hold the input elements */
bin_in1 = gst_bin_new("bin");
bin_in2 = gst_bin_new("bin");
/* first input bin */
/* create elements */
disksrc1 = gst_elementfactory_make("disksrc", "disk_source1");
gtk_object_set(GTK_OBJECT(disksrc1),"location", argv[1],NULL);
gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
decoder1 = gst_elementfactory_make("mad","decoder1");
volenv1 = gst_elementfactory_make("volenv", "volume1");
/* add to the bin */
/* create input channels */
gst_bin_add(GST_BIN(bin_in1), disksrc1);
gst_bin_add(GST_BIN(bin_in1), decoder1);
gst_bin_add(GST_BIN(bin_in1), volenv1);
/* connect elements */
gst_pad_connect(gst_element_get_pad(disksrc1,"src"),
gst_element_get_pad(decoder1,"sink"));
gst_pad_connect(gst_element_get_pad(decoder1,"src"),
gst_element_get_pad(volenv1,"sink"));
/* add a ghost pad */
gst_element_add_ghost_pad (bin_in1, gst_element_get_pad (volenv1, "src"), "channel1");
channel_in1 = create_input_pipe (1, argv[1]);
channel_in2 = create_input_pipe (2, argv[2]);
/* second input bin */
/* create elements */
disksrc2 = gst_elementfactory_make("disksrc", "disk_source2");
gtk_object_set(GTK_OBJECT(disksrc2),"location", argv[2],NULL);
gtk_signal_connect(GTK_OBJECT(disksrc2),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
decoder2 = gst_elementfactory_make("mad","decoder2");
volenv2 = gst_elementfactory_make("volenv", "volume2");
/* add to the bin */
gst_bin_add(GST_BIN(bin_in2), disksrc2);
gst_bin_add(GST_BIN(bin_in2), decoder2);
gst_bin_add(GST_BIN(bin_in2), volenv2);
/* connect elements */
gst_pad_connect(gst_element_get_pad(disksrc2,"src"),
gst_element_get_pad(decoder2,"sink"));
gst_pad_connect(gst_element_get_pad(decoder2,"src"),
gst_element_get_pad(volenv2,"sink"));
/* add a ghost pad */
gst_element_add_ghost_pad (bin_in2, gst_element_get_pad (volenv2, "src"), "channel2");
/* create adder */
adder = gst_elementfactory_make("adder", "adderel");
......@@ -100,8 +57,8 @@ int main(int argc,char *argv[])
/* now create main bin */
main_bin = gst_bin_new("bin");
gst_bin_add(GST_BIN(main_bin), bin_in1);
gst_bin_add(GST_BIN(main_bin), bin_in2);
gst_bin_add(GST_BIN(main_bin), channel_in1->pipe);
gst_bin_add(GST_BIN(main_bin), channel_in2->pipe);
gst_bin_add(GST_BIN(main_bin), adder);
gst_bin_add(GST_BIN(main_bin), audiosink);
......@@ -109,10 +66,10 @@ int main(int argc,char *argv[])
pad = gst_element_request_pad_by_name (adder, "sink%d");
g_print ("new pad %s\n", gst_pad_get_name (pad));
gst_pad_connect (gst_element_get_pad (bin_in1, "channel1"), pad);
gst_pad_connect (gst_element_get_pad (channel_in1->pipe, "channel1"), pad);
pad = gst_element_request_pad_by_name (adder, "sink%d");
g_print ("new pad %s\n", gst_pad_get_name (pad));
gst_pad_connect (gst_element_get_pad (bin_in2, "channel2"), pad);
gst_pad_connect (gst_element_get_pad (channel_in2->pipe, "channel2"), pad);
/* connect adder and audiosink */
......@@ -121,17 +78,17 @@ int main(int argc,char *argv[])
/* register the volume envelope */
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "0:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "5:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "10:1", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "15:1", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "20:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "0:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "5:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "10:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "15:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "20:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "0:1", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "5:1", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "10:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "15:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "20:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "0:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "5:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "10:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "15:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "20:1", NULL);
/* start playing */
gst_element_set_state(main_bin, GST_STATE_PLAYING);
......@@ -145,20 +102,104 @@ int main(int argc,char *argv[])
/* stop the bin */
gst_element_set_state(main_bin, GST_STATE_NULL);
destroy_input_pipe (channel_in1);
destroy_input_pipe (channel_in2);
gst_object_destroy(GST_OBJECT(audiosink));
gst_object_destroy(GST_OBJECT(disksrc1));
gst_object_destroy(GST_OBJECT(decoder1));
gst_object_destroy(GST_OBJECT(volenv1));
gst_object_destroy(GST_OBJECT(disksrc2));
gst_object_destroy(GST_OBJECT(decoder2));
gst_object_destroy(GST_OBJECT(volenv2));
gst_object_destroy(GST_OBJECT(bin_in1));
gst_object_destroy(GST_OBJECT(bin_in2));
gst_object_destroy(GST_OBJECT(main_bin));
exit(0);
}
input_pipe_t*
create_input_pipe (int id, char* location)
{
/* create an input pipeline, reading from location
* return a pointer to the pipe
* return NULL if failed
*/
input_pipe_t *pipe;
char buffer[20]; /* hold the names */
#ifdef DEBUG
printf ("DEBUG : c_i_p : creating pipe with id %d for file %s\n",
id, location);
#endif
/* allocate pipe */
pipe = (input_pipe_t *) malloc (sizeof (input_pipe_t));
if (pipe == NULL)
{
printf ("create_input_pipe : could not allocate memory for pipe !\n");
return NULL;
}
/* create pipe */
pipe->pipe = gst_bin_new ("pipeline");
/* create elements */
sprintf (buffer, "disksrc%d", id);
pipe->disksrc = gst_elementfactory_make ("disksrc", buffer);
gtk_object_set(GTK_OBJECT(pipe->disksrc),"location", location, NULL);
/* gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
*/
sprintf (buffer, "decoder%d", id);
pipe->decoder = gst_elementfactory_make("mad", buffer);
sprintf (buffer, "volume%d", id);
pipe->volenv = gst_elementfactory_make("volenv", buffer);
gst_bin_add(GST_BIN(pipe->pipe), pipe->disksrc);
gst_bin_add(GST_BIN(pipe->pipe), pipe->decoder);
gst_bin_add(GST_BIN(pipe->pipe), pipe->volenv);
/* connect elements */
gst_pad_connect(gst_element_get_pad(pipe->disksrc,"src"),
gst_element_get_pad(pipe->decoder,"sink"));
gst_pad_connect(gst_element_get_pad(pipe->decoder,"src"),
gst_element_get_pad(pipe->volenv,"sink"));
/* add a ghost pad */
sprintf (buffer, "channel%d", id);
gst_element_add_ghost_pad (pipe->pipe,
gst_element_get_pad (pipe->volenv, "src"), buffer);
#ifdef DEBUG
printf ("DEBUG : c_i_p : end function\n");
#endif
return pipe;
}
void
destroy_input_pipe (input_pipe_t *pipe)
{
/*
* destroy an input pipeline
*/
#ifdef DEBUG
printf ("DEBUG : d_i_p : start\n");
#endif
/* destroy elements */
gst_object_destroy (GST_OBJECT (pipe->disksrc));
gst_object_destroy (GST_OBJECT (pipe->decoder));
gst_object_destroy (GST_OBJECT (pipe->volenv));
gst_object_destroy (GST_OBJECT (pipe->pipe));
free (pipe);
}
#include <stdlib.h>
#include <gst/gst.h>
#include "mixer.h"
#define DEBUG
/* function prototypes */
input_pipe_t* create_input_pipe (int id, char* location);
void destroy_input_pipe (input_pipe_t *pipe);
gboolean playing;
......@@ -17,9 +26,10 @@ void eos(GstElement *element)
int main(int argc,char *argv[])
{
GstElement *bin_in1, *bin_in2, *main_bin;
GstElement *disksrc1, *decoder1, *volenv1;
GstElement *disksrc2, *decoder2, *volenv2;
input_pipe_t *channel_in1;
input_pipe_t *channel_in2;
GstElement *main_bin;
GstElement *adder;
GstElement *audiosink;
......@@ -32,64 +42,11 @@ int main(int argc,char *argv[])
exit(-1);
}
/* create input bins */
/* create bins to hold the input elements */
bin_in1 = gst_bin_new("bin");
bin_in2 = gst_bin_new("bin");
/* first input bin */
/* create elements */
disksrc1 = gst_elementfactory_make("disksrc", "disk_source1");
gtk_object_set(GTK_OBJECT(disksrc1),"location", argv[1],NULL);
gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
decoder1 = gst_elementfactory_make("mad","decoder1");
volenv1 = gst_elementfactory_make("volenv", "volume1");
/* add to the bin */
/* create input channels */
gst_bin_add(GST_BIN(bin_in1), disksrc1);
gst_bin_add(GST_BIN(bin_in1), decoder1);
gst_bin_add(GST_BIN(bin_in1), volenv1);
/* connect elements */
gst_pad_connect(gst_element_get_pad(disksrc1,"src"),
gst_element_get_pad(decoder1,"sink"));
gst_pad_connect(gst_element_get_pad(decoder1,"src"),
gst_element_get_pad(volenv1,"sink"));
/* add a ghost pad */
gst_element_add_ghost_pad (bin_in1, gst_element_get_pad (volenv1, "src"), "channel1");
channel_in1 = create_input_pipe (1, argv[1]);
channel_in2 = create_input_pipe (2, argv[2]);
/* second input bin */
/* create elements */
disksrc2 = gst_elementfactory_make("disksrc", "disk_source2");
gtk_object_set(GTK_OBJECT(disksrc2),"location", argv[2],NULL);
gtk_signal_connect(GTK_OBJECT(disksrc2),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
decoder2 = gst_elementfactory_make("mad","decoder2");
volenv2 = gst_elementfactory_make("volenv", "volume2");
/* add to the bin */
gst_bin_add(GST_BIN(bin_in2), disksrc2);
gst_bin_add(GST_BIN(bin_in2), decoder2);
gst_bin_add(GST_BIN(bin_in2), volenv2);
/* connect elements */
gst_pad_connect(gst_element_get_pad(disksrc2,"src"),
gst_element_get_pad(decoder2,"sink"));
gst_pad_connect(gst_element_get_pad(decoder2,"src"),
gst_element_get_pad(volenv2,"sink"));
/* add a ghost pad */
gst_element_add_ghost_pad (bin_in2, gst_element_get_pad (volenv2, "src"), "channel2");
/* create adder */
adder = gst_elementfactory_make("adder", "adderel");
......@@ -100,8 +57,8 @@ int main(int argc,char *argv[])
/* now create main bin */
main_bin = gst_bin_new("bin");
gst_bin_add(GST_BIN(main_bin), bin_in1);
gst_bin_add(GST_BIN(main_bin), bin_in2);
gst_bin_add(GST_BIN(main_bin), channel_in1->pipe);
gst_bin_add(GST_BIN(main_bin), channel_in2->pipe);
gst_bin_add(GST_BIN(main_bin), adder);
gst_bin_add(GST_BIN(main_bin), audiosink);
......@@ -109,10 +66,10 @@ int main(int argc,char *argv[])
pad = gst_element_request_pad_by_name (adder, "sink%d");
g_print ("new pad %s\n", gst_pad_get_name (pad));
gst_pad_connect (gst_element_get_pad (bin_in1, "channel1"), pad);
gst_pad_connect (gst_element_get_pad (channel_in1->pipe, "channel1"), pad);
pad = gst_element_request_pad_by_name (adder, "sink%d");
g_print ("new pad %s\n", gst_pad_get_name (pad));
gst_pad_connect (gst_element_get_pad (bin_in2, "channel2"), pad);
gst_pad_connect (gst_element_get_pad (channel_in2->pipe, "channel2"), pad);
/* connect adder and audiosink */
......@@ -121,17 +78,17 @@ int main(int argc,char *argv[])
/* register the volume envelope */
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "0:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "5:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "10:1", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "15:1", NULL);
gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "20:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "0:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "5:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "10:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "15:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "20:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "0:1", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "5:1", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "10:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "15:0.000001", NULL);
gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "20:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "0:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "5:1", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "10:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "15:0.000001", NULL);
gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "20:1", NULL);
/* start playing */
gst_element_set_state(main_bin, GST_STATE_PLAYING);
......@@ -145,20 +102,104 @@ int main(int argc,char *argv[])
/* stop the bin */
gst_element_set_state(main_bin, GST_STATE_NULL);
destroy_input_pipe (channel_in1);
destroy_input_pipe (channel_in2);
gst_object_destroy(GST_OBJECT(audiosink));
gst_object_destroy(GST_OBJECT(disksrc1));
gst_object_destroy(GST_OBJECT(decoder1));
gst_object_destroy(GST_OBJECT(volenv1));
gst_object_destroy(GST_OBJECT(disksrc2));
gst_object_destroy(GST_OBJECT(decoder2));
gst_object_destroy(GST_OBJECT(volenv2));
gst_object_destroy(GST_OBJECT(bin_in1));
gst_object_destroy(GST_OBJECT(bin_in2));
gst_object_destroy(GST_OBJECT(main_bin));
exit(0);
}
input_pipe_t*
create_input_pipe (int id, char* location)
{
/* create an input pipeline, reading from location
* return a pointer to the pipe
* return NULL if failed
*/
input_pipe_t *pipe;
char buffer[20]; /* hold the names */
#ifdef DEBUG
printf ("DEBUG : c_i_p : creating pipe with id %d for file %s\n",
id, location);
#endif
/* allocate pipe */
pipe = (input_pipe_t *) malloc (sizeof (input_pipe_t));
if (pipe == NULL)
{
printf ("create_input_pipe : could not allocate memory for pipe !\n");
return NULL;
}
/* create pipe */
pipe->pipe = gst_bin_new ("pipeline");
/* create elements */
sprintf (buffer, "disksrc%d", id);
pipe->disksrc = gst_elementfactory_make ("disksrc", buffer);
gtk_object_set(GTK_OBJECT(pipe->disksrc),"location", location, NULL);
/* gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
*/
sprintf (buffer, "decoder%d", id);
pipe->decoder = gst_elementfactory_make("mad", buffer);
sprintf (buffer, "volume%d", id);
pipe->volenv = gst_elementfactory_make("volenv", buffer);
gst_bin_add(GST_BIN(pipe->pipe), pipe->disksrc);
gst_bin_add(GST_BIN(pipe->pipe), pipe->decoder);
gst_bin_add(GST_BIN(pipe->pipe), pipe->volenv);
/* connect elements */
gst_pad_connect(gst_element_get_pad(pipe->disksrc,"src"),
gst_element_get_pad(pipe->decoder,"sink"));
gst_pad_connect(gst_element_get_pad(pipe->decoder,"src"),
gst_element_get_pad(pipe->volenv,"sink"));
/* add a ghost pad */
sprintf (buffer, "channel%d", id);
gst_element_add_ghost_pad (pipe->pipe,
gst_element_get_pad (pipe->volenv, "src"), buffer);
#ifdef DEBUG
printf ("DEBUG : c_i_p : end function\n");
#endif
return pipe;
}
void
destroy_input_pipe (input_pipe_t *pipe)
{
/*
* destroy an input pipeline
*/
#ifdef DEBUG
printf ("DEBUG : d_i_p : start\n");
#endif
/* destroy elements */
gst_object_destroy (GST_OBJECT (pipe->disksrc));
gst_object_destroy (GST_OBJECT (pipe->decoder));
gst_object_destroy (GST_OBJECT (pipe->volenv));
gst_object_destroy (GST_OBJECT (pipe->pipe));
free (pipe);
}
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