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put upstream events in an async queue and resend them at the start of the chain. not working as expected yet but a start

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Original commit message from CVS:
put upstream events in an async queue and resend them at the start of the chain. not working as expected yet but a start
This commit is contained in:
Steve Baker 2002-06-08 16:13:18 +00:00
parent f50d53e209
commit e9e6b0797d
4 changed files with 60 additions and 42 deletions
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50
gst/gstqueue.c
View file

@ -236,6 +236,7 @@ gst_queue_init (GstQueue *queue)
queue->writer = FALSE;
queue->not_empty = g_cond_new ();
queue->not_full = g_cond_new ();
queue->events = g_async_queue_new();
GST_DEBUG_ELEMENT (GST_CAT_THREAD, queue, "initialized queue's not_empty & not_full conditions");
}
@ -248,6 +249,8 @@ gst_queue_dispose (GObject *object)
g_cond_free (queue->not_empty);
g_cond_free (queue->not_full);
g_async_queue_unref(queue->events);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
@ -297,6 +300,16 @@ gst_queue_chain (GstPad *pad, GstBuffer *buf)
g_return_if_fail (buf != NULL);
queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
/* check for events to send upstream */
g_async_queue_lock(queue->events);
while (g_async_queue_length_unlocked(queue->events) > 0){
GstEvent *event = (GstEvent*)g_async_queue_pop_unlocked(queue->events);
g_print("sending event upstream\n");
gst_pad_event_default (pad, event);
g_print("event sent\n");
}
g_async_queue_unlock(queue->events);
restart:
/* we have to lock the queue since we span threads */
@ -441,6 +454,8 @@ gst_queue_get (GstPad *pad)
queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
restart:
/* have to lock for thread-safety */
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "locking t:%ld", pthread_self ());
@ -542,35 +557,28 @@ static gboolean
gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
{
GstQueue *queue;
gboolean res = TRUE;
queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
/* push the event to the queue for upstream consumption */
g_async_queue_push(queue->events, event);
g_mutex_lock (queue->qlock);
if (gst_element_get_state (GST_ELEMENT (queue)) == GST_STATE_PLAYING) {
g_mutex_unlock (queue->qlock);
g_warning ("queue event in playing state");
return FALSE;
}
res = gst_pad_event_default (pad, event);
if (res) {
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH:
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "FLUSH event, flushing queue\n");
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH:
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "FLUSH event, flushing queue\n");
gst_queue_locked_flush (queue);
break;
case GST_EVENT_SEEK:
if (GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH)
gst_queue_locked_flush (queue);
break;
case GST_EVENT_SEEK:
if (GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH)
gst_queue_locked_flush (queue);
default:
break;
}
default:
break;
}
g_mutex_unlock (queue->qlock);
return res;
/* we have to claim success, but we don't really know */
return TRUE;
}
static gboolean

1
gst/gstqueue.h
View file

@ -87,6 +87,7 @@ struct _GstQueue {
GCond *not_full; /* signals space now available for writing */
GTimeVal *timeval; /* the timeout for the queue locking */
GAsyncQueue *events; /* upstream events get decoupled here */
};
struct _GstQueueClass {

50
plugins/elements/gstqueue.c
View file

@ -236,6 +236,7 @@ gst_queue_init (GstQueue *queue)
queue->writer = FALSE;
queue->not_empty = g_cond_new ();
queue->not_full = g_cond_new ();
queue->events = g_async_queue_new();
GST_DEBUG_ELEMENT (GST_CAT_THREAD, queue, "initialized queue's not_empty & not_full conditions");
}
@ -248,6 +249,8 @@ gst_queue_dispose (GObject *object)
g_cond_free (queue->not_empty);
g_cond_free (queue->not_full);
g_async_queue_unref(queue->events);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
@ -297,6 +300,16 @@ gst_queue_chain (GstPad *pad, GstBuffer *buf)
g_return_if_fail (buf != NULL);
queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
/* check for events to send upstream */
g_async_queue_lock(queue->events);
while (g_async_queue_length_unlocked(queue->events) > 0){
GstEvent *event = (GstEvent*)g_async_queue_pop_unlocked(queue->events);
g_print("sending event upstream\n");
gst_pad_event_default (pad, event);
g_print("event sent\n");
}
g_async_queue_unlock(queue->events);
restart:
/* we have to lock the queue since we span threads */
@ -441,6 +454,8 @@ gst_queue_get (GstPad *pad)
queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
restart:
/* have to lock for thread-safety */
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "locking t:%ld", pthread_self ());
@ -542,35 +557,28 @@ static gboolean
gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
{
GstQueue *queue;
gboolean res = TRUE;
queue = GST_QUEUE (GST_OBJECT_PARENT (pad));
/* push the event to the queue for upstream consumption */
g_async_queue_push(queue->events, event);
g_mutex_lock (queue->qlock);
if (gst_element_get_state (GST_ELEMENT (queue)) == GST_STATE_PLAYING) {
g_mutex_unlock (queue->qlock);
g_warning ("queue event in playing state");
return FALSE;
}
res = gst_pad_event_default (pad, event);
if (res) {
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH:
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "FLUSH event, flushing queue\n");
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH:
GST_DEBUG_ELEMENT (GST_CAT_DATAFLOW, queue, "FLUSH event, flushing queue\n");
gst_queue_locked_flush (queue);
break;
case GST_EVENT_SEEK:
if (GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH)
gst_queue_locked_flush (queue);
break;
case GST_EVENT_SEEK:
if (GST_EVENT_SEEK_FLAGS (event) & GST_SEEK_FLAG_FLUSH)
gst_queue_locked_flush (queue);
default:
break;
}
default:
break;
}
g_mutex_unlock (queue->qlock);
return res;
/* we have to claim success, but we don't really know */
return TRUE;
}
static gboolean

1
plugins/elements/gstqueue.h
View file

@ -87,6 +87,7 @@ struct _GstQueue {
GCond *not_full; /* signals space now available for writing */
GTimeVal *timeval; /* the timeout for the queue locking */
GAsyncQueue *events; /* upstream events get decoupled here */
};
struct _GstQueueClass {