mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-26 11:41:09 +00:00
changed mixer to work by autoplugging the input channels (not very useful yet, since the input buffers to volenv have...
Original commit message from CVS: changed mixer to work by autoplugging the input channels (not very useful yet, since the input buffers to volenv have different sizes)
This commit is contained in:
Thomas Vander Stichele
parent
6bd5dcffab
commit
7c5e80c383
4 changed files with 288 additions and 106 deletions
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@ -2,12 +2,12 @@
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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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//#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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input_channel_t* create_input_channel (int id, char* location);
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void destroy_input_channel (input_channel_t *pipe);
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gboolean playing;
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@ -24,10 +24,55 @@ void eos(GstElement *element)
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playing = FALSE;
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}
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static void
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gst_play_have_type (GstElement *sink, GstElement *sink2, gpointer data)
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{
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GST_DEBUG (0,"GstPipeline: play have type %p\n", (gboolean *)data);
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*(gboolean *)data = TRUE;
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}
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static GstCaps*
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gst_play_typefind (GstBin *bin, GstElement *element)
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{
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gboolean found = FALSE;
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GstElement *typefind;
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GstCaps *caps = NULL;
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GST_DEBUG (0,"GstPipeline: typefind for element \"%s\" %p\n",
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GST_ELEMENT_NAME(element), &found);
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typefind = gst_elementfactory_make ("typefind", "typefind");
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g_return_val_if_fail (typefind != NULL, FALSE);
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gtk_signal_connect (GTK_OBJECT (typefind), "have_type",
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GTK_SIGNAL_FUNC (gst_play_have_type), &found);
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gst_pad_connect (gst_element_get_pad (element, "src"),
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gst_element_get_pad (typefind, "sink"));
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gst_bin_add (bin, typefind);
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PLAYING);
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// push a buffer... the have_type signal handler will set the found flag
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gst_bin_iterate (bin);
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_NULL);
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caps = gst_pad_get_caps (gst_element_get_pad (element, "src"));
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gst_pad_disconnect (gst_element_get_pad (element, "src"),
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gst_element_get_pad (typefind, "sink"));
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gst_bin_remove (bin, typefind);
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gst_object_unref (GST_OBJECT (typefind));
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return caps;
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}
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int main(int argc,char *argv[])
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{
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input_pipe_t *channel_in1;
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input_pipe_t *channel_in2;
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input_channel_t *channel_in1;
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input_channel_t *channel_in2;
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GstElement *main_bin;
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GstElement *adder;
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@ -44,8 +89,8 @@ int main(int argc,char *argv[])
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/* create input channels */
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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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channel_in1 = create_input_channel (1, argv[1]);
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channel_in2 = create_input_channel (2, argv[2]);
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/* create adder */
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@ -102,8 +147,8 @@ 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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destroy_input_channel (channel_in1);
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destroy_input_channel (channel_in2);
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gst_object_destroy(GST_OBJECT(audiosink));
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@ -112,92 +157,139 @@ int main(int argc,char *argv[])
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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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input_channel_t*
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create_input_channel (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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/* create an input channel, reading from location
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* return a pointer to the channel
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* return NULL if failed
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*/
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input_pipe_t *pipe;
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input_channel_t *channel;
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char buffer[20]; /* hold the names */
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GstAutoplug *autoplug;
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GstCaps *srccaps;
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GstElement *new_element;
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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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printf ("DEBUG : c_i_p : creating channel 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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/* allocate channel */
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pipe = (input_pipe_t *) malloc (sizeof (input_pipe_t));
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if (pipe == NULL)
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channel = (input_channel_t *) malloc (sizeof (input_channel_t));
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if (channel == NULL)
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{
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printf ("create_input_pipe : could not allocate memory for pipe !\n");
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printf ("create_input_channel : could not allocate memory for channel !\n");
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return NULL;
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}
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/* create pipe */
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/* create channel */
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pipe->pipe = gst_bin_new ("pipeline");
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating pipeline\n");
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#endif
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channel->pipe = gst_bin_new ("pipeline");
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g_assert(channel->pipe != NULL);
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/* create elements */
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating disksrc\n");
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#endif
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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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channel->disksrc = gst_elementfactory_make ("disksrc", buffer);
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g_assert(channel->disksrc != NULL);
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gtk_object_set(GTK_OBJECT(channel->disksrc),"location", location, NULL);
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/* add disksrc to the bin before autoplug */
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gst_bin_add(GST_BIN(channel->pipe), channel->disksrc);
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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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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating volume envelope\n");
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#endif
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/* connect elements */
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sprintf (buffer, "volenv%d", id);
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channel->volenv = gst_elementfactory_make ("volenv", buffer);
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g_assert(channel->volenv != NULL);
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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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/* autoplug the pipe */
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : getting srccaps\n");
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#endif
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srccaps = gst_play_typefind (GST_BIN (channel->pipe), channel->disksrc);
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if (!srccaps) {
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g_print ("could not autoplug, unknown media type...\n");
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exit (-1);
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}
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating autoplug\n");
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#endif
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autoplug = gst_autoplugfactory_make ("static");
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g_assert (autoplug != NULL);
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : autoplugging\n");
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#endif
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new_element = gst_autoplug_to_caps (autoplug, srccaps,
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gst_caps_new ("audio", "audio/raw", NULL), NULL);
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if (!new_element) {
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g_print ("could not autoplug, no suitable codecs found...\n");
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exit (-1);
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}
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gst_bin_add(GST_BIN(channel->pipe), channel->volenv);
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gst_bin_add (GST_BIN (channel->pipe), new_element);
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gst_element_connect (channel->disksrc, "src", new_element, "sink");
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gst_element_connect (new_element, "src_00", channel->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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gst_element_add_ghost_pad (channel->pipe,
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gst_element_get_pad (channel->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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return channel;
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}
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void
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destroy_input_pipe (input_pipe_t *pipe)
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destroy_input_channel (input_channel_t *channel)
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{
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/*
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* destroy an input pipeline
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* destroy an input channel
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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 (channel->pipe));
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gst_object_destroy (GST_OBJECT (pipe->pipe));
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free (pipe);
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free (channel);
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}
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@ -5,9 +5,8 @@
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typedef struct
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{
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GstElement *pipe;
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GstElement *pipe, *disksrc, *volenv;
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GstElement *disksrc;
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GstElement *decoder;
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GstElement *volenv;
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} input_pipe_t;
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char *location;
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int channel_id;
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} input_channel_t;
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@ -2,12 +2,12 @@
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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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//#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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input_channel_t* create_input_channel (int id, char* location);
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void destroy_input_channel (input_channel_t *pipe);
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gboolean playing;
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@ -24,10 +24,55 @@ void eos(GstElement *element)
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playing = FALSE;
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}
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static void
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gst_play_have_type (GstElement *sink, GstElement *sink2, gpointer data)
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{
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GST_DEBUG (0,"GstPipeline: play have type %p\n", (gboolean *)data);
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*(gboolean *)data = TRUE;
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}
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static GstCaps*
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gst_play_typefind (GstBin *bin, GstElement *element)
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{
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gboolean found = FALSE;
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GstElement *typefind;
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GstCaps *caps = NULL;
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GST_DEBUG (0,"GstPipeline: typefind for element \"%s\" %p\n",
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GST_ELEMENT_NAME(element), &found);
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typefind = gst_elementfactory_make ("typefind", "typefind");
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g_return_val_if_fail (typefind != NULL, FALSE);
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gtk_signal_connect (GTK_OBJECT (typefind), "have_type",
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GTK_SIGNAL_FUNC (gst_play_have_type), &found);
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gst_pad_connect (gst_element_get_pad (element, "src"),
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gst_element_get_pad (typefind, "sink"));
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gst_bin_add (bin, typefind);
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PLAYING);
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// push a buffer... the have_type signal handler will set the found flag
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gst_bin_iterate (bin);
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gst_element_set_state (GST_ELEMENT (bin), GST_STATE_NULL);
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caps = gst_pad_get_caps (gst_element_get_pad (element, "src"));
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gst_pad_disconnect (gst_element_get_pad (element, "src"),
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gst_element_get_pad (typefind, "sink"));
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gst_bin_remove (bin, typefind);
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gst_object_unref (GST_OBJECT (typefind));
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return caps;
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}
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int main(int argc,char *argv[])
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{
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input_pipe_t *channel_in1;
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input_pipe_t *channel_in2;
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input_channel_t *channel_in1;
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input_channel_t *channel_in2;
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GstElement *main_bin;
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GstElement *adder;
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@ -44,8 +89,8 @@ int main(int argc,char *argv[])
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/* create input channels */
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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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channel_in1 = create_input_channel (1, argv[1]);
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channel_in2 = create_input_channel (2, argv[2]);
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/* create adder */
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@ -102,8 +147,8 @@ 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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destroy_input_channel (channel_in1);
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destroy_input_channel (channel_in2);
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gst_object_destroy(GST_OBJECT(audiosink));
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@ -112,92 +157,139 @@ int main(int argc,char *argv[])
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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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input_channel_t*
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create_input_channel (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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/* create an input channel, reading from location
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* return a pointer to the channel
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* return NULL if failed
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*/
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input_pipe_t *pipe;
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input_channel_t *channel;
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char buffer[20]; /* hold the names */
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GstAutoplug *autoplug;
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GstCaps *srccaps;
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GstElement *new_element;
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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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printf ("DEBUG : c_i_p : creating channel 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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/* allocate channel */
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pipe = (input_pipe_t *) malloc (sizeof (input_pipe_t));
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if (pipe == NULL)
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channel = (input_channel_t *) malloc (sizeof (input_channel_t));
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if (channel == NULL)
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{
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printf ("create_input_pipe : could not allocate memory for pipe !\n");
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printf ("create_input_channel : could not allocate memory for channel !\n");
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return NULL;
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}
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/* create pipe */
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/* create channel */
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pipe->pipe = gst_bin_new ("pipeline");
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating pipeline\n");
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#endif
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channel->pipe = gst_bin_new ("pipeline");
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g_assert(channel->pipe != NULL);
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/* create elements */
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#ifdef DEBUG
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printf ("DEBUG : c_i_p : creating disksrc\n");
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#endif
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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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channel->disksrc = gst_elementfactory_make ("disksrc", buffer);
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g_assert(channel->disksrc != NULL);
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gtk_object_set(GTK_OBJECT(channel->disksrc),"location", location, NULL);
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/* add disksrc to the bin before autoplug */
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gst_bin_add(GST_BIN(channel->pipe), channel->disksrc);
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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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#ifdef DEBUG
|
||||
printf ("DEBUG : c_i_p : creating volume envelope\n");
|
||||
#endif
|
||||
|
||||
/* connect elements */
|
||||
sprintf (buffer, "volenv%d", id);
|
||||
channel->volenv = gst_elementfactory_make ("volenv", buffer);
|
||||
g_assert(channel->volenv != NULL);
|
||||
|
||||
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"));
|
||||
/* autoplug the pipe */
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("DEBUG : c_i_p : getting srccaps\n");
|
||||
#endif
|
||||
|
||||
srccaps = gst_play_typefind (GST_BIN (channel->pipe), channel->disksrc);
|
||||
|
||||
if (!srccaps) {
|
||||
g_print ("could not autoplug, unknown media type...\n");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("DEBUG : c_i_p : creating autoplug\n");
|
||||
#endif
|
||||
|
||||
autoplug = gst_autoplugfactory_make ("static");
|
||||
g_assert (autoplug != NULL);
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("DEBUG : c_i_p : autoplugging\n");
|
||||
#endif
|
||||
|
||||
new_element = gst_autoplug_to_caps (autoplug, srccaps,
|
||||
gst_caps_new ("audio", "audio/raw", NULL), NULL);
|
||||
|
||||
if (!new_element) {
|
||||
g_print ("could not autoplug, no suitable codecs found...\n");
|
||||
exit (-1);
|
||||
}
|
||||
|
||||
gst_bin_add(GST_BIN(channel->pipe), channel->volenv);
|
||||
gst_bin_add (GST_BIN (channel->pipe), new_element);
|
||||
|
||||
gst_element_connect (channel->disksrc, "src", new_element, "sink");
|
||||
gst_element_connect (new_element, "src_00", channel->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);
|
||||
gst_element_add_ghost_pad (channel->pipe,
|
||||
gst_element_get_pad (channel->volenv, "src"), buffer);
|
||||
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("DEBUG : c_i_p : end function\n");
|
||||
#endif
|
||||
|
||||
return pipe;
|
||||
return channel;
|
||||
}
|
||||
|
||||
void
|
||||
destroy_input_pipe (input_pipe_t *pipe)
|
||||
destroy_input_channel (input_channel_t *channel)
|
||||
{
|
||||
/*
|
||||
* destroy an input pipeline
|
||||
* destroy an input channel
|
||||
*/
|
||||
|
||||
#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 (channel->pipe));
|
||||
|
||||
gst_object_destroy (GST_OBJECT (pipe->pipe));
|
||||
|
||||
free (pipe);
|
||||
free (channel);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -5,9 +5,8 @@
|
|||
|
||||
typedef struct
|
||||
{
|
||||
GstElement *pipe;
|
||||
GstElement *pipe, *disksrc, *volenv;
|
||||
|
||||
GstElement *disksrc;
|
||||
GstElement *decoder;
|
||||
GstElement *volenv;
|
||||
} input_pipe_t;
|
||||
char *location;
|
||||
int channel_id;
|
||||
} input_channel_t;
|
||||
|
|
|
|||
Loading…
Reference in a new issue