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A little example program to show how trigger-based elements can work.
Original commit message from CVS: * configure.ac: * testsuite/trigger/Makefile.am: * testsuite/trigger/trigger.c: A little example program to show how trigger-based elements can work.
This commit is contained in:
David Schleef
parent
bb1be5f509
commit
687173ffc0
6 changed files with 1738 additions and 0 deletions
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@ -1,3 +1,10 @@
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2005-03-29 David Schleef <ds@schleef.org>
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* configure.ac:
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* testsuite/trigger/Makefile.am:
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* testsuite/trigger/trigger.c: A little example program to show
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how trigger-based elements can work.
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2005-03-29 Wim Taymans <wim@fluendo.com>
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* gst/base/Makefile.am:
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@ -697,6 +697,7 @@ testsuite/schedulers/Makefile
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testsuite/states/Makefile
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testsuite/tags/Makefile
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testsuite/threads/Makefile
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testsuite/trigger/Makefile
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examples/Makefile
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examples/cutter/Makefile
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examples/helloworld/Makefile
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9
tests/old/testsuite/trigger/Makefile.am
Normal file
9
tests/old/testsuite/trigger/Makefile.am
Normal file
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@ -0,0 +1,9 @@
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noinst_PROGRAMS = trigger
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trigger_SOURCES = trigger.c
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trigger_CFLAGS = $(GST_OBJ_CFLAGS)
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trigger_LDADD = $(GST_OBJS_LIBS) $(GLIB_LIBS)
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856
tests/old/testsuite/trigger/trigger.c
Normal file
856
tests/old/testsuite/trigger/trigger.c
Normal file
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@ -0,0 +1,856 @@
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#include <glib.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#include <gst/gst.h>
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#define INFINITY 1e10
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typedef struct _Element Element;
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typedef struct _Feature Feature;
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typedef struct _ElementInfo ElementInfo;
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enum
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{
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PAD_SRC,
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PAD_SINK,
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FD,
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TIME
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};
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struct _Element
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{
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char *name;
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GList *features;
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int type;
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gboolean init;
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gboolean idle;
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void (*iterate) (Element * element);
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void (*caps_iterate) (Element * element);
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int state;
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};
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struct _Feature
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{
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char *name;
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int type;
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Element *parent;
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gboolean waiting;
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gboolean ready;
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/* for pads */
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gboolean bufpen;
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Feature *peer;
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GstCaps *caps;
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/* for fds */
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double next_time;
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double interval;
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};
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struct _ElementInfo
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{
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char *type_name;
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void (*iterate) (Element * element);
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void (*caps_iterate) (Element * element);
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};
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GList *elements;
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void run (void);
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void dump (void);
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void dump_element (Element * e);
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Element *element_factory_make (const char *type);
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Element *element_factory_make_full (const char *type, const char *name);
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void element_link (const char *name1, const char *name2);
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void element_link_full (const char *name1, const char *padname1,
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const char *name2, const char *padname2);
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Element *element_get (const char *name);
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gboolean element_ready (Element * e);
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gboolean feature_is_ready (Feature * f);
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double element_next_time (Element * e);
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Feature *feature_create (Element * e, int type, const char *name);
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Feature *feature_get (Element * e, const char *name);
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gboolean feature_ready (Element * e, const char *name);
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void fakesrc_iterate (Element * element);
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void identity_iterate (Element * element);
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void fakesink_iterate (Element * element);
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void audiosink_iterate (Element * element);
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void mad_iterate (Element * element);
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void queue_iterate (Element * element);
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void videosink_iterate (Element * element);
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void tee_iterate (Element * element);
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void fakesrc_caps (Element * element);
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void identity_caps (Element * element);
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void fakesink_caps (Element * element);
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void audiosink_caps (Element * element);
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void mad_caps (Element * element);
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void queue_caps (Element * element);
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void videosink_caps (Element * element);
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void tee_caps (Element * element);
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double time;
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int
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main (int argc, char *argv[])
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{
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int x = 8;
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switch (x) {
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case 0:
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/* fakesrc ! fakesink */
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element_factory_make ("fakesrc");
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element_factory_make ("fakesink");
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element_link ("fakesrc", "fakesink");
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break;
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case 1:
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/* fakesrc ! identity ! fakesink */
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element_factory_make ("fakesrc");
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element_factory_make ("identity");
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element_factory_make ("fakesink");
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element_link ("fakesrc", "identity");
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element_link ("identity", "fakesink");
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break;
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case 2:
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/* fakesrc ! identity ! identity ! fakesink */
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element_factory_make ("fakesrc");
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element_factory_make_full ("identity", "identity0");
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element_factory_make_full ("identity", "identity1");
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element_factory_make ("fakesink");
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element_link ("fakesrc", "identity0");
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element_link ("identity0", "identity1");
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element_link ("identity1", "fakesink");
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break;
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case 3:
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/* fakesrc ! audiosink */
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element_factory_make ("fakesrc");
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element_factory_make ("audiosink");
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element_link ("fakesrc", "audiosink");
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break;
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case 4:
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/* fakesrc ! mad ! fakesink */
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element_factory_make ("fakesrc");
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element_factory_make ("mad");
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element_factory_make ("fakesink");
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element_link ("fakesrc", "mad");
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element_link ("mad", "fakesink");
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break;
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case 5:
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/* fakesrc ! queue ! fakesink */
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element_factory_make ("fakesrc");
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element_factory_make ("queue");
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element_factory_make ("fakesink");
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element_link ("fakesrc", "queue");
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element_link ("queue", "fakesink");
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break;
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case 6:
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/* fakesrc ! queue ! audiosink */
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element_factory_make ("fakesrc");
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element_factory_make ("queue");
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element_factory_make ("audiosink");
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element_link ("fakesrc", "queue");
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element_link ("queue", "audiosink");
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break;
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case 7:
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/* fakesrc ! videosink */
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element_factory_make ("fakesrc");
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element_factory_make ("videosink");
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element_link ("fakesrc", "videosink");
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break;
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case 8:
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/* fakesrc ! tee ! videosink tee0.src2 ! videosink */
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element_factory_make ("fakesrc");
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element_factory_make ("tee");
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element_factory_make_full ("videosink", "vs0");
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element_factory_make_full ("videosink", "vs1");
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element_link ("fakesrc", "tee");
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element_link_full ("tee", "src1", "vs0", "sink");
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element_link_full ("tee", "src2", "vs1", "sink");
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break;
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}
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run ();
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return 0;
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}
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void
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run (void)
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{
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int iter = 0;
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while (iter < 20) {
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Element *e;
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GList *l;
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gboolean did_something = FALSE;
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double ent = INFINITY;
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g_print ("iteration %d time %g\n", iter, time);
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for (l = g_list_first (elements); l; l = g_list_next (l)) {
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double nt;
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e = l->data;
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if (element_ready (e)) {
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g_print ("%s: is ready, iterating\n", e->name);
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e->iterate (e);
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did_something = TRUE;
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} else {
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g_print ("%s: is not ready\n", e->name);
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}
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nt = element_next_time (e);
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if (nt < ent) {
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ent = nt;
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}
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}
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if (did_something == FALSE) {
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if (ent < INFINITY) {
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g_print ("nothing to do, waiting for %g\n", ent);
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time = ent;
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} else {
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g_print ("ERROR: deadlock\n");
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exit (1);
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}
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}
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iter++;
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}
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}
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void
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dump (void)
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{
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Element *e;
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GList *l;
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for (l = g_list_first (elements); l; l = g_list_next (l)) {
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e = l->data;
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dump_element (e);
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}
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}
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void
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dump_element (Element * e)
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{
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Feature *f;
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GList *m;
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g_print ("%s:\n", e->name);
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for (m = g_list_first (e->features); m; m = g_list_next (m)) {
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f = m->data;
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g_print (" %s:\n", f->name);
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g_print (" type %d\n", f->type);
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g_print (" ready %d\n", f->ready);
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g_print (" waiting %d\n", f->waiting);
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}
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}
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/* Element */
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const ElementInfo element_types[] = {
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{"fakesrc", fakesrc_iterate},
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{"identity", identity_iterate},
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{"fakesink", fakesink_iterate},
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{"audiosink", audiosink_iterate},
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{"mad", mad_iterate},
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{"queue", queue_iterate},
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{"videosink", videosink_iterate},
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{"tee", tee_iterate},
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{NULL, NULL}
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};
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Element *
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element_factory_make (const char *type)
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{
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return element_factory_make_full (type, type);
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}
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Element *
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element_factory_make_full (const char *type, const char *name)
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{
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int i;
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Element *e = g_new0 (Element, 1);
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for (i = 0; element_types[i].type_name; i++) {
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if (strcmp (type, element_types[i].type_name) == 0) {
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e->type = i;
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e->iterate = element_types[i].iterate;
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e->caps_iterate = element_types[i].iterate;
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e->iterate (e);
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e->name = g_strdup (name);
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elements = g_list_append (elements, e);
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return e;
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}
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}
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g_print ("ERROR: element type %s not found\n", type);
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return NULL;
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}
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void
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element_link (const char *name1, const char *name2)
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{
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element_link_full (name1, "src", name2, "sink");
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}
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void
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element_link_full (const char *name1, const char *padname1, const char *name2,
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const char *padname2)
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{
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Element *e1, *e2;
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Feature *pad1, *pad2;
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e1 = element_get (name1);
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e2 = element_get (name2);
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pad1 = feature_get (e1, padname1);
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pad2 = feature_get (e2, padname2);
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pad1->peer = pad2;
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pad2->peer = pad1;
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}
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Element *
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element_get (const char *name)
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{
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GList *l;
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for (l = g_list_first (elements); l; l = g_list_next (l)) {
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Element *e = l->data;
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if (strcmp (name, e->name) == 0)
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return e;
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}
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g_print ("ERROR: element_get(%s) element not found\n", name);
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return NULL;
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}
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gboolean
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element_ready (Element * e)
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{
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GList *l;
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//dump_element(e);
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if (e->idle)
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return TRUE;
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for (l = g_list_first (e->features); l; l = g_list_next (l)) {
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Feature *f = l->data;
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if (f->waiting && feature_is_ready (f)) {
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g_print ("element %s is ready because feature %s is ready\n",
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e->name, f->name);
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return TRUE;
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}
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}
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return FALSE;
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}
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double
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element_next_time (Element * e)
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{
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GList *l;
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double ent = INFINITY;
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for (l = g_list_first (e->features); l; l = g_list_next (l)) {
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Feature *f = l->data;
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if (f->type == FD || f->type == TIME) {
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if (f->next_time < ent) {
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ent = f->next_time;
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}
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}
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}
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return ent;
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}
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/* Feature */
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Feature *
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feature_get (Element * e, const char *name)
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{
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GList *l;
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for (l = g_list_first (e->features); l; l = g_list_next (l)) {
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Feature *f = l->data;
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if (strcmp (name, f->name) == 0)
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return f;
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}
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g_print ("ERROR: feature_get(%s): feature not found\n", name);
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return NULL;
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}
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Feature *
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feature_create (Element * e, int type, const char *name)
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{
|
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Feature *f = g_new0 (Feature, 1);
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f->name = g_strdup (name);
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f->type = type;
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e->features = g_list_append (e->features, f);
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return f;
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}
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void
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feature_wait (Element * e, const char *name, gboolean wait)
|
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{
|
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Feature *f = feature_get (e, name);
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|
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f->waiting = wait;
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switch (f->type) {
|
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case PAD_SRC:
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if (f->peer) {
|
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f->peer->ready = wait && f->peer->bufpen;
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}
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break;
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case PAD_SINK:
|
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if (f->peer) {
|
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f->peer->ready = wait && f->bufpen;
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}
|
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break;
|
||||
}
|
||||
}
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||||
|
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gboolean
|
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feature_ready (Element * e, const char *name)
|
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{
|
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Feature *f = feature_get (e, name);
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|
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return feature_is_ready (f);
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}
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|
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gboolean
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feature_is_ready (Feature * f)
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{
|
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switch (f->type) {
|
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case PAD_SRC:
|
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if (f->peer) {
|
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return f->peer->waiting && !f->peer->bufpen;
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}
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break;
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case PAD_SINK:
|
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if (f->peer) {
|
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return f->peer->waiting && f->bufpen;
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}
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break;
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case FD:
|
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g_print ("testing %g <= %g\n", f->next_time, time);
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if (f->next_time <= time) {
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return TRUE;
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} else {
|
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return FALSE;
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}
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break;
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case TIME:
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g_print ("testing %g <= %g\n", f->next_time, time);
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if (f->next_time <= time) {
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return TRUE;
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||||
} else {
|
||||
return FALSE;
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||||
}
|
||||
break;
|
||||
}
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||||
|
||||
return FALSE;
|
||||
}
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||||
|
||||
void
|
||||
pad_push (Element * e, const char *name)
|
||||
{
|
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Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == PAD_SRC);
|
||||
|
||||
g_print ("pushing pad on %s:%s\n", e->name, name);
|
||||
if (f->peer->bufpen) {
|
||||
g_print ("ERROR: push when bufpen full link\n");
|
||||
exit (0);
|
||||
}
|
||||
f->peer->bufpen = TRUE;
|
||||
f->peer->ready = f->waiting;
|
||||
f->ready = FALSE;
|
||||
}
|
||||
|
||||
void
|
||||
pad_pull (Element * e, const char *name)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == PAD_SINK);
|
||||
|
||||
g_print ("pulling pad on %s:%s\n", e->name, name);
|
||||
if (!f->bufpen) {
|
||||
g_print ("ERROR: pull when bufpen empty\n");
|
||||
exit (0);
|
||||
}
|
||||
f->bufpen = FALSE;
|
||||
f->ready = FALSE;
|
||||
f->peer->ready = f->waiting;
|
||||
}
|
||||
|
||||
void
|
||||
fd_push (Element * e, const char *name)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == FD);
|
||||
|
||||
g_print ("pushing to fd %s:%s\n", e->name, name);
|
||||
if (time < f->next_time) {
|
||||
g_print ("ERROR: push too early\n");
|
||||
exit (0);
|
||||
}
|
||||
f->next_time += f->interval;
|
||||
}
|
||||
|
||||
void
|
||||
fd_start (Element * e, const char *name, double interval)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == FD);
|
||||
|
||||
f->interval = interval;
|
||||
f->next_time = f->interval;
|
||||
}
|
||||
|
||||
void
|
||||
time_start (Element * e, const char *name, double interval)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == TIME);
|
||||
|
||||
f->interval = interval;
|
||||
f->next_time = f->interval;
|
||||
}
|
||||
|
||||
void
|
||||
time_increment (Element * e, const char *name, double interval)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == TIME);
|
||||
|
||||
f->interval = interval;
|
||||
f->next_time += f->interval;
|
||||
}
|
||||
|
||||
/* elements */
|
||||
|
||||
void
|
||||
fakesrc_iterate (Element * element)
|
||||
{
|
||||
//Event *event;
|
||||
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
pad_push (element, "src");
|
||||
}
|
||||
|
||||
void
|
||||
identity_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "sink") && feature_ready (element, "src")) {
|
||||
pad_pull (element, "sink");
|
||||
pad_push (element, "src");
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
if (feature_ready (element, "sink")) {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
feature_wait (element, "src", TRUE);
|
||||
feature_wait (element, "sink", FALSE);
|
||||
}
|
||||
if (feature_ready (element, "src")) {
|
||||
feature_wait (element, "src", FALSE);
|
||||
feature_wait (element, "sink", TRUE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
fakesink_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
|
||||
element->idle = TRUE;
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
g_print ("FAKESINK\n");
|
||||
} else {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
element->idle = FALSE;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
audiosink_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
Feature *f;
|
||||
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
f = feature_create (element, FD, "fd");
|
||||
fd_start (element, "fd", 1024 / 44100.0);
|
||||
|
||||
feature_wait (element, "fd", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "fd")) {
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
fd_push (element, "fd");
|
||||
g_print ("AUDIOSINK\n");
|
||||
feature_wait (element, "fd", TRUE);
|
||||
feature_wait (element, "sink", FALSE);
|
||||
} else {
|
||||
feature_wait (element, "fd", FALSE);
|
||||
feature_wait (element, "sink", TRUE);
|
||||
}
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "fd", TRUE);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
mad_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
element->state = 0;
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (element->state > 0) {
|
||||
if (feature_ready (element, "src")) {
|
||||
pad_push (element, "src");
|
||||
element->state--;
|
||||
if (element->state > 0) {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
}
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
}
|
||||
} else {
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
element->state += 5;
|
||||
pad_push (element, "src");
|
||||
element->state--;
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "src", FALSE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
queue_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
element->state = 0;
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "sink") && element->state < 5) {
|
||||
pad_pull (element, "sink");
|
||||
element->state++;
|
||||
}
|
||||
if (feature_ready (element, "src") && element->state > 0) {
|
||||
pad_push (element, "src");
|
||||
element->state--;
|
||||
}
|
||||
|
||||
if (element->state < 5) {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
}
|
||||
if (element->state > 0) {
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "src", FALSE);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
demux_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "video_src");
|
||||
feature_create (element, PAD_SRC, "audio_src");
|
||||
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "video_src", FALSE);
|
||||
feature_wait (element, "audio_src", FALSE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
#if 0
|
||||
/* demux waits for a buffer on the sinkpad, then queues buffers and
|
||||
* eventually pushes them to sinkpads */
|
||||
if (feautre_ready (element, "sink") &&) {
|
||||
|
||||
}
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
videosink_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
Feature *f;
|
||||
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
f = feature_create (element, TIME, "time");
|
||||
time_start (element, "time", 1 / 25.0);
|
||||
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "time", FALSE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
/* this version hold the buffer in the bufpen */
|
||||
if (feature_ready (element, "sink")) {
|
||||
if (feature_ready (element, "time")) {
|
||||
pad_pull (element, "sink");
|
||||
g_print ("VIDEOSINK\n");
|
||||
time_increment (element, "time", 1 / 25.0);
|
||||
feature_wait (element, "time", FALSE);
|
||||
feature_wait (element, "sink", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "time", TRUE);
|
||||
feature_wait (element, "sink", FALSE);
|
||||
}
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tee_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src1");
|
||||
feature_create (element, PAD_SRC, "src2");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", TRUE);
|
||||
feature_wait (element, "src2", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
/* this version hold the buffer in the bufpen */
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
pad_push (element, "src1");
|
||||
pad_push (element, "src2");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", TRUE);
|
||||
feature_wait (element, "src2", TRUE);
|
||||
} else {
|
||||
if (feature_ready (element, "src1")) {
|
||||
if (feature_ready (element, "src2")) {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "src1", FALSE);
|
||||
feature_wait (element, "src2", FALSE);
|
||||
} else {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", FALSE);
|
||||
feature_wait (element, "src2", TRUE);
|
||||
}
|
||||
} else {
|
||||
if (feature_ready (element, "src2")) {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", TRUE);
|
||||
feature_wait (element, "src2", FALSE);
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
9
testsuite/trigger/Makefile.am
Normal file
9
testsuite/trigger/Makefile.am
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
|
||||
|
||||
noinst_PROGRAMS = trigger
|
||||
|
||||
trigger_SOURCES = trigger.c
|
||||
trigger_CFLAGS = $(GST_OBJ_CFLAGS)
|
||||
trigger_LDADD = $(GST_OBJS_LIBS) $(GLIB_LIBS)
|
||||
|
||||
|
||||
856
testsuite/trigger/trigger.c
Normal file
856
testsuite/trigger/trigger.c
Normal file
|
|
@ -0,0 +1,856 @@
|
|||
|
||||
#include <glib.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <math.h>
|
||||
#include <gst/gst.h>
|
||||
|
||||
#define INFINITY 1e10
|
||||
|
||||
typedef struct _Element Element;
|
||||
typedef struct _Feature Feature;
|
||||
typedef struct _ElementInfo ElementInfo;
|
||||
|
||||
enum
|
||||
{
|
||||
PAD_SRC,
|
||||
PAD_SINK,
|
||||
FD,
|
||||
TIME
|
||||
};
|
||||
|
||||
struct _Element
|
||||
{
|
||||
char *name;
|
||||
GList *features;
|
||||
int type;
|
||||
gboolean init;
|
||||
gboolean idle;
|
||||
|
||||
void (*iterate) (Element * element);
|
||||
void (*caps_iterate) (Element * element);
|
||||
|
||||
int state;
|
||||
};
|
||||
|
||||
struct _Feature
|
||||
{
|
||||
char *name;
|
||||
int type;
|
||||
|
||||
Element *parent;
|
||||
|
||||
gboolean waiting;
|
||||
gboolean ready;
|
||||
|
||||
/* for pads */
|
||||
gboolean bufpen;
|
||||
Feature *peer;
|
||||
GstCaps *caps;
|
||||
|
||||
/* for fds */
|
||||
double next_time;
|
||||
double interval;
|
||||
};
|
||||
|
||||
struct _ElementInfo
|
||||
{
|
||||
char *type_name;
|
||||
void (*iterate) (Element * element);
|
||||
void (*caps_iterate) (Element * element);
|
||||
};
|
||||
|
||||
GList *elements;
|
||||
|
||||
void run (void);
|
||||
void dump (void);
|
||||
void dump_element (Element * e);
|
||||
|
||||
Element *element_factory_make (const char *type);
|
||||
Element *element_factory_make_full (const char *type, const char *name);
|
||||
void element_link (const char *name1, const char *name2);
|
||||
void element_link_full (const char *name1, const char *padname1,
|
||||
const char *name2, const char *padname2);
|
||||
Element *element_get (const char *name);
|
||||
gboolean element_ready (Element * e);
|
||||
gboolean feature_is_ready (Feature * f);
|
||||
double element_next_time (Element * e);
|
||||
|
||||
Feature *feature_create (Element * e, int type, const char *name);
|
||||
Feature *feature_get (Element * e, const char *name);
|
||||
gboolean feature_ready (Element * e, const char *name);
|
||||
|
||||
void fakesrc_iterate (Element * element);
|
||||
void identity_iterate (Element * element);
|
||||
void fakesink_iterate (Element * element);
|
||||
void audiosink_iterate (Element * element);
|
||||
void mad_iterate (Element * element);
|
||||
void queue_iterate (Element * element);
|
||||
void videosink_iterate (Element * element);
|
||||
void tee_iterate (Element * element);
|
||||
|
||||
void fakesrc_caps (Element * element);
|
||||
void identity_caps (Element * element);
|
||||
void fakesink_caps (Element * element);
|
||||
void audiosink_caps (Element * element);
|
||||
void mad_caps (Element * element);
|
||||
void queue_caps (Element * element);
|
||||
void videosink_caps (Element * element);
|
||||
void tee_caps (Element * element);
|
||||
|
||||
double time;
|
||||
|
||||
int
|
||||
main (int argc, char *argv[])
|
||||
{
|
||||
int x = 8;
|
||||
|
||||
switch (x) {
|
||||
case 0:
|
||||
/* fakesrc ! fakesink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("fakesink");
|
||||
element_link ("fakesrc", "fakesink");
|
||||
break;
|
||||
case 1:
|
||||
/* fakesrc ! identity ! fakesink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("identity");
|
||||
element_factory_make ("fakesink");
|
||||
|
||||
element_link ("fakesrc", "identity");
|
||||
element_link ("identity", "fakesink");
|
||||
break;
|
||||
case 2:
|
||||
/* fakesrc ! identity ! identity ! fakesink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make_full ("identity", "identity0");
|
||||
element_factory_make_full ("identity", "identity1");
|
||||
element_factory_make ("fakesink");
|
||||
|
||||
element_link ("fakesrc", "identity0");
|
||||
element_link ("identity0", "identity1");
|
||||
element_link ("identity1", "fakesink");
|
||||
break;
|
||||
case 3:
|
||||
/* fakesrc ! audiosink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("audiosink");
|
||||
|
||||
element_link ("fakesrc", "audiosink");
|
||||
break;
|
||||
case 4:
|
||||
/* fakesrc ! mad ! fakesink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("mad");
|
||||
element_factory_make ("fakesink");
|
||||
|
||||
element_link ("fakesrc", "mad");
|
||||
element_link ("mad", "fakesink");
|
||||
break;
|
||||
case 5:
|
||||
/* fakesrc ! queue ! fakesink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("queue");
|
||||
element_factory_make ("fakesink");
|
||||
|
||||
element_link ("fakesrc", "queue");
|
||||
element_link ("queue", "fakesink");
|
||||
break;
|
||||
case 6:
|
||||
/* fakesrc ! queue ! audiosink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("queue");
|
||||
element_factory_make ("audiosink");
|
||||
|
||||
element_link ("fakesrc", "queue");
|
||||
element_link ("queue", "audiosink");
|
||||
break;
|
||||
case 7:
|
||||
/* fakesrc ! videosink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("videosink");
|
||||
|
||||
element_link ("fakesrc", "videosink");
|
||||
break;
|
||||
case 8:
|
||||
/* fakesrc ! tee ! videosink tee0.src2 ! videosink */
|
||||
element_factory_make ("fakesrc");
|
||||
element_factory_make ("tee");
|
||||
element_factory_make_full ("videosink", "vs0");
|
||||
element_factory_make_full ("videosink", "vs1");
|
||||
|
||||
element_link ("fakesrc", "tee");
|
||||
element_link_full ("tee", "src1", "vs0", "sink");
|
||||
element_link_full ("tee", "src2", "vs1", "sink");
|
||||
break;
|
||||
}
|
||||
|
||||
run ();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
run (void)
|
||||
{
|
||||
int iter = 0;
|
||||
|
||||
while (iter < 20) {
|
||||
Element *e;
|
||||
GList *l;
|
||||
gboolean did_something = FALSE;
|
||||
double ent = INFINITY;
|
||||
|
||||
g_print ("iteration %d time %g\n", iter, time);
|
||||
for (l = g_list_first (elements); l; l = g_list_next (l)) {
|
||||
double nt;
|
||||
|
||||
e = l->data;
|
||||
if (element_ready (e)) {
|
||||
g_print ("%s: is ready, iterating\n", e->name);
|
||||
e->iterate (e);
|
||||
did_something = TRUE;
|
||||
} else {
|
||||
g_print ("%s: is not ready\n", e->name);
|
||||
}
|
||||
nt = element_next_time (e);
|
||||
if (nt < ent) {
|
||||
ent = nt;
|
||||
}
|
||||
}
|
||||
if (did_something == FALSE) {
|
||||
if (ent < INFINITY) {
|
||||
g_print ("nothing to do, waiting for %g\n", ent);
|
||||
time = ent;
|
||||
} else {
|
||||
g_print ("ERROR: deadlock\n");
|
||||
exit (1);
|
||||
}
|
||||
}
|
||||
iter++;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
dump (void)
|
||||
{
|
||||
Element *e;
|
||||
GList *l;
|
||||
|
||||
for (l = g_list_first (elements); l; l = g_list_next (l)) {
|
||||
e = l->data;
|
||||
dump_element (e);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
dump_element (Element * e)
|
||||
{
|
||||
Feature *f;
|
||||
GList *m;
|
||||
|
||||
g_print ("%s:\n", e->name);
|
||||
for (m = g_list_first (e->features); m; m = g_list_next (m)) {
|
||||
f = m->data;
|
||||
g_print (" %s:\n", f->name);
|
||||
g_print (" type %d\n", f->type);
|
||||
g_print (" ready %d\n", f->ready);
|
||||
g_print (" waiting %d\n", f->waiting);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
/* Element */
|
||||
|
||||
const ElementInfo element_types[] = {
|
||||
{"fakesrc", fakesrc_iterate},
|
||||
{"identity", identity_iterate},
|
||||
{"fakesink", fakesink_iterate},
|
||||
{"audiosink", audiosink_iterate},
|
||||
{"mad", mad_iterate},
|
||||
{"queue", queue_iterate},
|
||||
{"videosink", videosink_iterate},
|
||||
{"tee", tee_iterate},
|
||||
{NULL, NULL}
|
||||
};
|
||||
|
||||
Element *
|
||||
element_factory_make (const char *type)
|
||||
{
|
||||
return element_factory_make_full (type, type);
|
||||
}
|
||||
|
||||
Element *
|
||||
element_factory_make_full (const char *type, const char *name)
|
||||
{
|
||||
int i;
|
||||
Element *e = g_new0 (Element, 1);
|
||||
|
||||
for (i = 0; element_types[i].type_name; i++) {
|
||||
if (strcmp (type, element_types[i].type_name) == 0) {
|
||||
e->type = i;
|
||||
e->iterate = element_types[i].iterate;
|
||||
e->caps_iterate = element_types[i].iterate;
|
||||
e->iterate (e);
|
||||
e->name = g_strdup (name);
|
||||
|
||||
elements = g_list_append (elements, e);
|
||||
|
||||
return e;
|
||||
}
|
||||
}
|
||||
|
||||
g_print ("ERROR: element type %s not found\n", type);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void
|
||||
element_link (const char *name1, const char *name2)
|
||||
{
|
||||
element_link_full (name1, "src", name2, "sink");
|
||||
}
|
||||
|
||||
void
|
||||
element_link_full (const char *name1, const char *padname1, const char *name2,
|
||||
const char *padname2)
|
||||
{
|
||||
Element *e1, *e2;
|
||||
Feature *pad1, *pad2;
|
||||
|
||||
e1 = element_get (name1);
|
||||
e2 = element_get (name2);
|
||||
|
||||
pad1 = feature_get (e1, padname1);
|
||||
pad2 = feature_get (e2, padname2);
|
||||
|
||||
pad1->peer = pad2;
|
||||
pad2->peer = pad1;
|
||||
|
||||
}
|
||||
|
||||
Element *
|
||||
element_get (const char *name)
|
||||
{
|
||||
GList *l;
|
||||
|
||||
for (l = g_list_first (elements); l; l = g_list_next (l)) {
|
||||
Element *e = l->data;
|
||||
|
||||
if (strcmp (name, e->name) == 0)
|
||||
return e;
|
||||
}
|
||||
|
||||
g_print ("ERROR: element_get(%s) element not found\n", name);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
gboolean
|
||||
element_ready (Element * e)
|
||||
{
|
||||
GList *l;
|
||||
|
||||
//dump_element(e);
|
||||
if (e->idle)
|
||||
return TRUE;
|
||||
for (l = g_list_first (e->features); l; l = g_list_next (l)) {
|
||||
Feature *f = l->data;
|
||||
|
||||
if (f->waiting && feature_is_ready (f)) {
|
||||
g_print ("element %s is ready because feature %s is ready\n",
|
||||
e->name, f->name);
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
double
|
||||
element_next_time (Element * e)
|
||||
{
|
||||
GList *l;
|
||||
double ent = INFINITY;
|
||||
|
||||
for (l = g_list_first (e->features); l; l = g_list_next (l)) {
|
||||
Feature *f = l->data;
|
||||
|
||||
if (f->type == FD || f->type == TIME) {
|
||||
if (f->next_time < ent) {
|
||||
ent = f->next_time;
|
||||
}
|
||||
}
|
||||
}
|
||||
return ent;
|
||||
}
|
||||
|
||||
/* Feature */
|
||||
|
||||
Feature *
|
||||
feature_get (Element * e, const char *name)
|
||||
{
|
||||
GList *l;
|
||||
|
||||
for (l = g_list_first (e->features); l; l = g_list_next (l)) {
|
||||
Feature *f = l->data;
|
||||
|
||||
if (strcmp (name, f->name) == 0)
|
||||
return f;
|
||||
}
|
||||
|
||||
g_print ("ERROR: feature_get(%s): feature not found\n", name);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
Feature *
|
||||
feature_create (Element * e, int type, const char *name)
|
||||
{
|
||||
Feature *f = g_new0 (Feature, 1);
|
||||
|
||||
f->name = g_strdup (name);
|
||||
f->type = type;
|
||||
|
||||
e->features = g_list_append (e->features, f);
|
||||
|
||||
return f;
|
||||
}
|
||||
|
||||
void
|
||||
feature_wait (Element * e, const char *name, gboolean wait)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
f->waiting = wait;
|
||||
switch (f->type) {
|
||||
case PAD_SRC:
|
||||
if (f->peer) {
|
||||
f->peer->ready = wait && f->peer->bufpen;
|
||||
}
|
||||
break;
|
||||
case PAD_SINK:
|
||||
if (f->peer) {
|
||||
f->peer->ready = wait && f->bufpen;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
gboolean
|
||||
feature_ready (Element * e, const char *name)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
return feature_is_ready (f);
|
||||
}
|
||||
|
||||
gboolean
|
||||
feature_is_ready (Feature * f)
|
||||
{
|
||||
switch (f->type) {
|
||||
case PAD_SRC:
|
||||
if (f->peer) {
|
||||
return f->peer->waiting && !f->peer->bufpen;
|
||||
}
|
||||
break;
|
||||
case PAD_SINK:
|
||||
if (f->peer) {
|
||||
return f->peer->waiting && f->bufpen;
|
||||
}
|
||||
break;
|
||||
case FD:
|
||||
g_print ("testing %g <= %g\n", f->next_time, time);
|
||||
if (f->next_time <= time) {
|
||||
return TRUE;
|
||||
} else {
|
||||
return FALSE;
|
||||
}
|
||||
break;
|
||||
case TIME:
|
||||
g_print ("testing %g <= %g\n", f->next_time, time);
|
||||
if (f->next_time <= time) {
|
||||
return TRUE;
|
||||
} else {
|
||||
return FALSE;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
void
|
||||
pad_push (Element * e, const char *name)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == PAD_SRC);
|
||||
|
||||
g_print ("pushing pad on %s:%s\n", e->name, name);
|
||||
if (f->peer->bufpen) {
|
||||
g_print ("ERROR: push when bufpen full link\n");
|
||||
exit (0);
|
||||
}
|
||||
f->peer->bufpen = TRUE;
|
||||
f->peer->ready = f->waiting;
|
||||
f->ready = FALSE;
|
||||
}
|
||||
|
||||
void
|
||||
pad_pull (Element * e, const char *name)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == PAD_SINK);
|
||||
|
||||
g_print ("pulling pad on %s:%s\n", e->name, name);
|
||||
if (!f->bufpen) {
|
||||
g_print ("ERROR: pull when bufpen empty\n");
|
||||
exit (0);
|
||||
}
|
||||
f->bufpen = FALSE;
|
||||
f->ready = FALSE;
|
||||
f->peer->ready = f->waiting;
|
||||
}
|
||||
|
||||
void
|
||||
fd_push (Element * e, const char *name)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == FD);
|
||||
|
||||
g_print ("pushing to fd %s:%s\n", e->name, name);
|
||||
if (time < f->next_time) {
|
||||
g_print ("ERROR: push too early\n");
|
||||
exit (0);
|
||||
}
|
||||
f->next_time += f->interval;
|
||||
}
|
||||
|
||||
void
|
||||
fd_start (Element * e, const char *name, double interval)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == FD);
|
||||
|
||||
f->interval = interval;
|
||||
f->next_time = f->interval;
|
||||
}
|
||||
|
||||
void
|
||||
time_start (Element * e, const char *name, double interval)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == TIME);
|
||||
|
||||
f->interval = interval;
|
||||
f->next_time = f->interval;
|
||||
}
|
||||
|
||||
void
|
||||
time_increment (Element * e, const char *name, double interval)
|
||||
{
|
||||
Feature *f = feature_get (e, name);
|
||||
|
||||
g_assert (f->type == TIME);
|
||||
|
||||
f->interval = interval;
|
||||
f->next_time += f->interval;
|
||||
}
|
||||
|
||||
/* elements */
|
||||
|
||||
void
|
||||
fakesrc_iterate (Element * element)
|
||||
{
|
||||
//Event *event;
|
||||
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
pad_push (element, "src");
|
||||
}
|
||||
|
||||
void
|
||||
identity_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "sink") && feature_ready (element, "src")) {
|
||||
pad_pull (element, "sink");
|
||||
pad_push (element, "src");
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
if (feature_ready (element, "sink")) {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
feature_wait (element, "src", TRUE);
|
||||
feature_wait (element, "sink", FALSE);
|
||||
}
|
||||
if (feature_ready (element, "src")) {
|
||||
feature_wait (element, "src", FALSE);
|
||||
feature_wait (element, "sink", TRUE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
fakesink_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
|
||||
element->idle = TRUE;
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
g_print ("FAKESINK\n");
|
||||
} else {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
element->idle = FALSE;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
audiosink_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
Feature *f;
|
||||
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
f = feature_create (element, FD, "fd");
|
||||
fd_start (element, "fd", 1024 / 44100.0);
|
||||
|
||||
feature_wait (element, "fd", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "fd")) {
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
fd_push (element, "fd");
|
||||
g_print ("AUDIOSINK\n");
|
||||
feature_wait (element, "fd", TRUE);
|
||||
feature_wait (element, "sink", FALSE);
|
||||
} else {
|
||||
feature_wait (element, "fd", FALSE);
|
||||
feature_wait (element, "sink", TRUE);
|
||||
}
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "fd", TRUE);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
mad_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
element->state = 0;
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (element->state > 0) {
|
||||
if (feature_ready (element, "src")) {
|
||||
pad_push (element, "src");
|
||||
element->state--;
|
||||
if (element->state > 0) {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
}
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
}
|
||||
} else {
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
element->state += 5;
|
||||
pad_push (element, "src");
|
||||
element->state--;
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "src", FALSE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
queue_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src");
|
||||
|
||||
element->state = 0;
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
if (feature_ready (element, "sink") && element->state < 5) {
|
||||
pad_pull (element, "sink");
|
||||
element->state++;
|
||||
}
|
||||
if (feature_ready (element, "src") && element->state > 0) {
|
||||
pad_push (element, "src");
|
||||
element->state--;
|
||||
}
|
||||
|
||||
if (element->state < 5) {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
}
|
||||
if (element->state > 0) {
|
||||
feature_wait (element, "src", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "src", FALSE);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
demux_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "video_src");
|
||||
feature_create (element, PAD_SRC, "audio_src");
|
||||
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "video_src", FALSE);
|
||||
feature_wait (element, "audio_src", FALSE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
#if 0
|
||||
/* demux waits for a buffer on the sinkpad, then queues buffers and
|
||||
* eventually pushes them to sinkpads */
|
||||
if (feautre_ready (element, "sink") &&) {
|
||||
|
||||
}
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
videosink_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
Feature *f;
|
||||
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
f = feature_create (element, TIME, "time");
|
||||
time_start (element, "time", 1 / 25.0);
|
||||
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "time", FALSE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
/* this version hold the buffer in the bufpen */
|
||||
if (feature_ready (element, "sink")) {
|
||||
if (feature_ready (element, "time")) {
|
||||
pad_pull (element, "sink");
|
||||
g_print ("VIDEOSINK\n");
|
||||
time_increment (element, "time", 1 / 25.0);
|
||||
feature_wait (element, "time", FALSE);
|
||||
feature_wait (element, "sink", TRUE);
|
||||
} else {
|
||||
feature_wait (element, "time", TRUE);
|
||||
feature_wait (element, "sink", FALSE);
|
||||
}
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
tee_iterate (Element * element)
|
||||
{
|
||||
if (!element->init) {
|
||||
feature_create (element, PAD_SINK, "sink");
|
||||
feature_create (element, PAD_SRC, "src1");
|
||||
feature_create (element, PAD_SRC, "src2");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", TRUE);
|
||||
feature_wait (element, "src2", TRUE);
|
||||
|
||||
element->init = TRUE;
|
||||
return;
|
||||
}
|
||||
|
||||
/* this version hold the buffer in the bufpen */
|
||||
if (feature_ready (element, "sink")) {
|
||||
pad_pull (element, "sink");
|
||||
pad_push (element, "src1");
|
||||
pad_push (element, "src2");
|
||||
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", TRUE);
|
||||
feature_wait (element, "src2", TRUE);
|
||||
} else {
|
||||
if (feature_ready (element, "src1")) {
|
||||
if (feature_ready (element, "src2")) {
|
||||
feature_wait (element, "sink", TRUE);
|
||||
feature_wait (element, "src1", FALSE);
|
||||
feature_wait (element, "src2", FALSE);
|
||||
} else {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", FALSE);
|
||||
feature_wait (element, "src2", TRUE);
|
||||
}
|
||||
} else {
|
||||
if (feature_ready (element, "src2")) {
|
||||
feature_wait (element, "sink", FALSE);
|
||||
feature_wait (element, "src1", TRUE);
|
||||
feature_wait (element, "src2", FALSE);
|
||||
} else {
|
||||
g_print ("ERROR: assert not reached\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue