mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-02-17 03:35:21 +00:00
added a struct to set up input channels
Original commit message from CVS: added a struct to set up input channels
This commit is contained in:
Thomas Vander Stichele
parent
8249fcfe80
commit
2d0a7dfad1
2 changed files with 248 additions and 166 deletions
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@ -1,5 +1,14 @@
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#include <stdlib.h>
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#include <gst/gst.h>
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#include "mixer.h"
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#define DEBUG
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/* function prototypes */
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input_pipe_t* create_input_pipe (int id, char* location);
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void destroy_input_pipe (input_pipe_t *pipe);
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gboolean playing;
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@ -17,9 +26,10 @@ void eos(GstElement *element)
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int main(int argc,char *argv[])
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{
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GstElement *bin_in1, *bin_in2, *main_bin;
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GstElement *disksrc1, *decoder1, *volenv1;
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GstElement *disksrc2, *decoder2, *volenv2;
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input_pipe_t *channel_in1;
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input_pipe_t *channel_in2;
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GstElement *main_bin;
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GstElement *adder;
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GstElement *audiosink;
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@ -32,64 +42,11 @@ int main(int argc,char *argv[])
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exit(-1);
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}
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/* create input bins */
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/* create input channels */
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/* create bins to hold the input elements */
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bin_in1 = gst_bin_new("bin");
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bin_in2 = gst_bin_new("bin");
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channel_in1 = create_input_pipe (1, argv[1]);
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channel_in2 = create_input_pipe (2, argv[2]);
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/* first input bin */
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/* create elements */
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disksrc1 = gst_elementfactory_make("disksrc", "disk_source1");
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gtk_object_set(GTK_OBJECT(disksrc1),"location", argv[1],NULL);
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gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
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GTK_SIGNAL_FUNC(eos),NULL);
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decoder1 = gst_elementfactory_make("mad","decoder1");
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volenv1 = gst_elementfactory_make("volenv", "volume1");
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/* add to the bin */
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gst_bin_add(GST_BIN(bin_in1), disksrc1);
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gst_bin_add(GST_BIN(bin_in1), decoder1);
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gst_bin_add(GST_BIN(bin_in1), volenv1);
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/* connect elements */
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gst_pad_connect(gst_element_get_pad(disksrc1,"src"),
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gst_element_get_pad(decoder1,"sink"));
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gst_pad_connect(gst_element_get_pad(decoder1,"src"),
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gst_element_get_pad(volenv1,"sink"));
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/* add a ghost pad */
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gst_element_add_ghost_pad (bin_in1, gst_element_get_pad (volenv1, "src"), "channel1");
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/* second input bin */
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/* create elements */
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disksrc2 = gst_elementfactory_make("disksrc", "disk_source2");
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gtk_object_set(GTK_OBJECT(disksrc2),"location", argv[2],NULL);
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gtk_signal_connect(GTK_OBJECT(disksrc2),"eos",
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GTK_SIGNAL_FUNC(eos),NULL);
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decoder2 = gst_elementfactory_make("mad","decoder2");
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volenv2 = gst_elementfactory_make("volenv", "volume2");
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/* add to the bin */
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gst_bin_add(GST_BIN(bin_in2), disksrc2);
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gst_bin_add(GST_BIN(bin_in2), decoder2);
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gst_bin_add(GST_BIN(bin_in2), volenv2);
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/* connect elements */
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gst_pad_connect(gst_element_get_pad(disksrc2,"src"),
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gst_element_get_pad(decoder2,"sink"));
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gst_pad_connect(gst_element_get_pad(decoder2,"src"),
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gst_element_get_pad(volenv2,"sink"));
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/* add a ghost pad */
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gst_element_add_ghost_pad (bin_in2, gst_element_get_pad (volenv2, "src"), "channel2");
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/* create adder */
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adder = gst_elementfactory_make("adder", "adderel");
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@ -100,8 +57,8 @@ int main(int argc,char *argv[])
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/* now create main bin */
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main_bin = gst_bin_new("bin");
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gst_bin_add(GST_BIN(main_bin), bin_in1);
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gst_bin_add(GST_BIN(main_bin), bin_in2);
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gst_bin_add(GST_BIN(main_bin), channel_in1->pipe);
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gst_bin_add(GST_BIN(main_bin), channel_in2->pipe);
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gst_bin_add(GST_BIN(main_bin), adder);
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gst_bin_add(GST_BIN(main_bin), audiosink);
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@ -109,10 +66,10 @@ int main(int argc,char *argv[])
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pad = gst_element_request_pad_by_name (adder, "sink%d");
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g_print ("new pad %s\n", gst_pad_get_name (pad));
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gst_pad_connect (gst_element_get_pad (bin_in1, "channel1"), pad);
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gst_pad_connect (gst_element_get_pad (channel_in1->pipe, "channel1"), pad);
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pad = gst_element_request_pad_by_name (adder, "sink%d");
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g_print ("new pad %s\n", gst_pad_get_name (pad));
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gst_pad_connect (gst_element_get_pad (bin_in2, "channel2"), pad);
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gst_pad_connect (gst_element_get_pad (channel_in2->pipe, "channel2"), pad);
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/* connect adder and audiosink */
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@ -121,17 +78,17 @@ int main(int argc,char *argv[])
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/* register the volume envelope */
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "0:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "5:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "10:1", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "15:1", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "20:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "0:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "5:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "10:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "15:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "20:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "0:1", NULL);
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gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "5:1", NULL);
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gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "10:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "15:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv2), "controlpoint", "20:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "0:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "5:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "10:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "15:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in2->volenv), "controlpoint", "20:1", NULL);
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/* start playing */
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gst_element_set_state(main_bin, GST_STATE_PLAYING);
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@ -145,20 +102,104 @@ int main(int argc,char *argv[])
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/* stop the bin */
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gst_element_set_state(main_bin, GST_STATE_NULL);
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destroy_input_pipe (channel_in1);
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destroy_input_pipe (channel_in2);
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gst_object_destroy(GST_OBJECT(audiosink));
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gst_object_destroy(GST_OBJECT(disksrc1));
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gst_object_destroy(GST_OBJECT(decoder1));
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gst_object_destroy(GST_OBJECT(volenv1));
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gst_object_destroy(GST_OBJECT(disksrc2));
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gst_object_destroy(GST_OBJECT(decoder2));
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gst_object_destroy(GST_OBJECT(volenv2));
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gst_object_destroy(GST_OBJECT(bin_in1));
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gst_object_destroy(GST_OBJECT(bin_in2));
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gst_object_destroy(GST_OBJECT(main_bin));
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exit(0);
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}
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input_pipe_t*
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create_input_pipe (int id, char* location)
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{
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/* create an input pipeline, reading from location
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* return a pointer to the pipe
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* return NULL if failed
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*/
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input_pipe_t *pipe;
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char buffer[20]; /* hold the names */
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating pipe with id %d for file %s\n",
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id, location);
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#endif
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/* allocate pipe */
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pipe = (input_pipe_t *) malloc (sizeof (input_pipe_t));
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if (pipe == NULL)
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{
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printf ("create_input_pipe : could not allocate memory for pipe !\n");
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return NULL;
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}
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/* create pipe */
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pipe->pipe = gst_bin_new ("pipeline");
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/* create elements */
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sprintf (buffer, "disksrc%d", id);
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pipe->disksrc = gst_elementfactory_make ("disksrc", buffer);
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gtk_object_set(GTK_OBJECT(pipe->disksrc),"location", location, NULL);
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/* gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
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GTK_SIGNAL_FUNC(eos),NULL);
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*/
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sprintf (buffer, "decoder%d", id);
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pipe->decoder = gst_elementfactory_make("mad", buffer);
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sprintf (buffer, "volume%d", id);
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pipe->volenv = gst_elementfactory_make("volenv", buffer);
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gst_bin_add(GST_BIN(pipe->pipe), pipe->disksrc);
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gst_bin_add(GST_BIN(pipe->pipe), pipe->decoder);
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gst_bin_add(GST_BIN(pipe->pipe), pipe->volenv);
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/* connect elements */
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gst_pad_connect(gst_element_get_pad(pipe->disksrc,"src"),
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gst_element_get_pad(pipe->decoder,"sink"));
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gst_pad_connect(gst_element_get_pad(pipe->decoder,"src"),
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gst_element_get_pad(pipe->volenv,"sink"));
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/* add a ghost pad */
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sprintf (buffer, "channel%d", id);
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gst_element_add_ghost_pad (pipe->pipe,
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gst_element_get_pad (pipe->volenv, "src"), buffer);
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : end function\n");
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#endif
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return pipe;
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}
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void
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destroy_input_pipe (input_pipe_t *pipe)
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{
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/*
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* destroy an input pipeline
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*/
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#ifdef DEBUG
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printf ("DEBUG : d_i_p : start\n");
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#endif
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/* destroy elements */
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gst_object_destroy (GST_OBJECT (pipe->disksrc));
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gst_object_destroy (GST_OBJECT (pipe->decoder));
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gst_object_destroy (GST_OBJECT (pipe->volenv));
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gst_object_destroy (GST_OBJECT (pipe->pipe));
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free (pipe);
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}
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@ -1,5 +1,14 @@
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#include <stdlib.h>
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#include <gst/gst.h>
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#include "mixer.h"
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#define DEBUG
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/* function prototypes */
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input_pipe_t* create_input_pipe (int id, char* location);
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void destroy_input_pipe (input_pipe_t *pipe);
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gboolean playing;
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@ -17,9 +26,10 @@ void eos(GstElement *element)
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int main(int argc,char *argv[])
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{
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GstElement *bin_in1, *bin_in2, *main_bin;
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GstElement *disksrc1, *decoder1, *volenv1;
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GstElement *disksrc2, *decoder2, *volenv2;
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input_pipe_t *channel_in1;
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input_pipe_t *channel_in2;
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GstElement *main_bin;
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GstElement *adder;
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GstElement *audiosink;
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@ -32,64 +42,11 @@ int main(int argc,char *argv[])
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exit(-1);
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}
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/* create input bins */
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/* create input channels */
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/* create bins to hold the input elements */
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bin_in1 = gst_bin_new("bin");
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bin_in2 = gst_bin_new("bin");
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channel_in1 = create_input_pipe (1, argv[1]);
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channel_in2 = create_input_pipe (2, argv[2]);
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/* first input bin */
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/* create elements */
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disksrc1 = gst_elementfactory_make("disksrc", "disk_source1");
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gtk_object_set(GTK_OBJECT(disksrc1),"location", argv[1],NULL);
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gtk_signal_connect(GTK_OBJECT(disksrc1),"eos",
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GTK_SIGNAL_FUNC(eos),NULL);
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decoder1 = gst_elementfactory_make("mad","decoder1");
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volenv1 = gst_elementfactory_make("volenv", "volume1");
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/* add to the bin */
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gst_bin_add(GST_BIN(bin_in1), disksrc1);
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gst_bin_add(GST_BIN(bin_in1), decoder1);
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gst_bin_add(GST_BIN(bin_in1), volenv1);
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/* connect elements */
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gst_pad_connect(gst_element_get_pad(disksrc1,"src"),
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gst_element_get_pad(decoder1,"sink"));
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gst_pad_connect(gst_element_get_pad(decoder1,"src"),
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gst_element_get_pad(volenv1,"sink"));
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/* add a ghost pad */
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gst_element_add_ghost_pad (bin_in1, gst_element_get_pad (volenv1, "src"), "channel1");
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/* second input bin */
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/* create elements */
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disksrc2 = gst_elementfactory_make("disksrc", "disk_source2");
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gtk_object_set(GTK_OBJECT(disksrc2),"location", argv[2],NULL);
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gtk_signal_connect(GTK_OBJECT(disksrc2),"eos",
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GTK_SIGNAL_FUNC(eos),NULL);
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decoder2 = gst_elementfactory_make("mad","decoder2");
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volenv2 = gst_elementfactory_make("volenv", "volume2");
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/* add to the bin */
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gst_bin_add(GST_BIN(bin_in2), disksrc2);
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gst_bin_add(GST_BIN(bin_in2), decoder2);
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gst_bin_add(GST_BIN(bin_in2), volenv2);
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/* connect elements */
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gst_pad_connect(gst_element_get_pad(disksrc2,"src"),
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gst_element_get_pad(decoder2,"sink"));
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gst_pad_connect(gst_element_get_pad(decoder2,"src"),
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gst_element_get_pad(volenv2,"sink"));
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/* add a ghost pad */
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gst_element_add_ghost_pad (bin_in2, gst_element_get_pad (volenv2, "src"), "channel2");
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/* create adder */
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adder = gst_elementfactory_make("adder", "adderel");
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@ -100,8 +57,8 @@ int main(int argc,char *argv[])
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/* now create main bin */
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main_bin = gst_bin_new("bin");
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gst_bin_add(GST_BIN(main_bin), bin_in1);
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gst_bin_add(GST_BIN(main_bin), bin_in2);
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gst_bin_add(GST_BIN(main_bin), channel_in1->pipe);
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gst_bin_add(GST_BIN(main_bin), channel_in2->pipe);
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gst_bin_add(GST_BIN(main_bin), adder);
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gst_bin_add(GST_BIN(main_bin), audiosink);
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@ -109,10 +66,10 @@ int main(int argc,char *argv[])
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pad = gst_element_request_pad_by_name (adder, "sink%d");
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g_print ("new pad %s\n", gst_pad_get_name (pad));
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gst_pad_connect (gst_element_get_pad (bin_in1, "channel1"), pad);
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gst_pad_connect (gst_element_get_pad (channel_in1->pipe, "channel1"), pad);
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pad = gst_element_request_pad_by_name (adder, "sink%d");
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g_print ("new pad %s\n", gst_pad_get_name (pad));
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gst_pad_connect (gst_element_get_pad (bin_in2, "channel2"), pad);
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gst_pad_connect (gst_element_get_pad (channel_in2->pipe, "channel2"), pad);
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/* connect adder and audiosink */
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@ -121,17 +78,17 @@ int main(int argc,char *argv[])
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/* register the volume envelope */
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "0:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "5:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "10:1", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "15:1", NULL);
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gtk_object_set(GTK_OBJECT(volenv1), "controlpoint", "20:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "0:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "5:0.000001", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "10:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "15:1", NULL);
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gtk_object_set(GTK_OBJECT(channel_in1->volenv), "controlpoint", "20:0.000001", NULL);
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|
||||
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);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue