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Basicscheduler patch for bug 110976

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Original commit message from CVS:
Basicscheduler patch for bug 110976
- intercept flush events and clear any queued buffers in the bufpen
This commit is contained in:
Wim Taymans 2003-04-16 21:35:09 +00:00
parent 0bba2966b7
commit a31ed7185a
1 changed files with 50 additions and 10 deletions
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60
gst/schedulers/gstbasicscheduler.c
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@ -265,8 +265,8 @@ GstPluginDesc plugin_desc = {
plugin_init
};
static int
gst_basic_scheduler_loopfunc_wrapper (int argc, char *argv[])
static void
gst_basic_scheduler_loopfunc_wrapper (int argc, void **argv)
{
GstElement *element = GST_ELEMENT_CAST (argv);
G_GNUC_UNUSED const gchar *name = GST_ELEMENT_NAME (element);
@ -294,11 +294,10 @@ gst_basic_scheduler_loopfunc_wrapper (int argc, char *argv[])
GST_DEBUG_LEAVE ("(%d,'%s')", argc, name);
gst_object_unref (GST_OBJECT (element));
return 0;
}
static int
gst_basic_scheduler_chain_wrapper (int argc, char *argv[])
static void
gst_basic_scheduler_chain_wrapper (int argc, void **argv)
{
GstElement *element = GST_ELEMENT_CAST (argv);
G_GNUC_UNUSED const gchar *name = GST_ELEMENT_NAME (element);
@ -357,11 +356,10 @@ gst_basic_scheduler_chain_wrapper (int argc, char *argv[])
GST_DEBUG_LEAVE ("(%d,'%s')", argc, name);
gst_object_unref (GST_OBJECT (element));
return 0;
}
static int
gst_basic_scheduler_src_wrapper (int argc, char *argv[])
static void
gst_basic_scheduler_src_wrapper (int argc, void **argv)
{
GstElement *element = GST_ELEMENT_CAST (argv);
GList *pads;
@ -383,7 +381,7 @@ gst_basic_scheduler_src_wrapper (int argc, char *argv[])
pads = g_list_next (pads);
if (GST_RPAD_DIRECTION (realpad) == GST_PAD_SRC && GST_PAD_IS_USABLE (realpad)) {
GST_DEBUG (GST_CAT_DATAFLOW, "calling _getfunc for %s:%s", GST_DEBUG_PAD_NAME (realpad));
g_return_val_if_fail (GST_RPAD_GETFUNC (realpad) != NULL, 0);
g_return_if_fail (GST_RPAD_GETFUNC (realpad) != NULL);
buf = GST_RPAD_GETFUNC (realpad) (GST_PAD_CAST (realpad));
if (buf) {
GST_DEBUG (GST_CAT_DATAFLOW, "calling gst_pad_push on pad %s:%s %p",
@ -403,7 +401,6 @@ gst_basic_scheduler_src_wrapper (int argc, char *argv[])
SCHED (element)->current = NULL;
GST_DEBUG_LEAVE ("");
return 0;
}
static void
@ -523,6 +520,43 @@ gst_basic_scheduler_gethandler_proxy (GstPad * pad)
return buf;
}
static gboolean
gst_basic_scheduler_eventhandler_proxy (GstPad *srcpad, GstEvent *event)
{
gboolean flush;
GST_INFO (GST_CAT_SCHEDULING, "intercepting event %d on pad %s:%s",
GST_EVENT_TYPE (event), GST_DEBUG_PAD_NAME (srcpad));
/* figure out if we need to flush */
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH:
flush = TRUE;
break;
case GST_EVENT_SEEK:
case GST_EVENT_SEEK_SEGMENT:
flush = GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH;
break;
default:
flush = FALSE;
break;
}
if (flush) {
GstData *data = GST_DATA (GST_RPAD_BUFPEN (srcpad));
GST_INFO (GST_CAT_SCHEDULING, "event is flush");
if (data) {
GST_INFO (GST_CAT_SCHEDULING, "need to clear some buffers");
gst_data_unref (data);
GST_RPAD_BUFPEN (srcpad) = NULL;
}
}
return GST_RPAD_EVENTFUNC (srcpad) (srcpad, event);
}
static gboolean
gst_basic_scheduler_cothreaded_chain (GstBin * bin, GstSchedulerChain * chain)
{
@ -627,6 +661,8 @@ gst_basic_scheduler_cothreaded_chain (GstBin * bin, GstSchedulerChain * chain)
}
}
}
/* in any case we need to copy the eventfunc into the handler */
GST_RPAD_EVENTHANDLER (peerpad) = GST_RPAD_EVENTFUNC (peerpad);
}
/* if the element is DECOUPLED or outside the manager, we have to chain */
@ -652,12 +688,16 @@ gst_basic_scheduler_cothreaded_chain (GstBin * bin, GstSchedulerChain * chain)
"setting cothreaded push proxy for sinkpad %s:%s",
GST_DEBUG_PAD_NAME (pad));
GST_RPAD_CHAINHANDLER (pad) = GST_DEBUG_FUNCPTR (gst_basic_scheduler_chainhandler_proxy);
GST_RPAD_EVENTHANDLER (pad) = GST_RPAD_EVENTFUNC (pad);
}
else {
GST_DEBUG (GST_CAT_SCHEDULING,
"setting cothreaded pull proxy for srcpad %s:%s",
GST_DEBUG_PAD_NAME (pad));
GST_RPAD_GETHANDLER (pad) = GST_DEBUG_FUNCPTR (gst_basic_scheduler_gethandler_proxy);
/* the gethandler proxy function can queue a buffer in the bufpen, we need
* to remove this buffer when a flush event is sent on the pad */
GST_RPAD_EVENTHANDLER (pad) = GST_DEBUG_FUNCPTR (gst_basic_scheduler_eventhandler_proxy);
}
}
}