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Clean up state change

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Original commit message from CVS:
Clean up state change
This commit is contained in:
Wim Taymans 2003-01-15 21:01:58 +00:00
parent 95abdf3bce
commit a722e87b12
2 changed files with 94 additions and 38 deletions
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66
gst/gstqueue.c
View file

@ -581,11 +581,11 @@ gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
if (gst_element_get_state (GST_ELEMENT (queue)) == GST_STATE_PLAYING) {
/* push the event to the queue for upstream consumption */
g_async_queue_push(queue->events, event);
g_mutex_unlock (queue->qlock);
g_warning ("FIXME: sending event in a running queue");
/* FIXME wait for delivery of the event here, then return the result
* instead of FALSE */
return FALSE;
res = FALSE;
goto done;
}
event_type = GST_EVENT_TYPE (event);
@ -606,10 +606,12 @@ gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
default:
break;
}
done:
g_mutex_unlock (queue->qlock);
/* we have to claim success, but we don't really know */
return TRUE;
return res;
}
static gboolean
@ -633,8 +635,6 @@ gst_queue_change_state (GstElement *element)
{
GstQueue *queue;
GstElementStateReturn ret;
GstElementState new_state;
g_return_val_if_fail (GST_IS_QUEUE (element), GST_STATE_FAILURE);
queue = GST_QUEUE (element);
@ -645,25 +645,53 @@ gst_queue_change_state (GstElement *element)
*/
g_mutex_lock (queue->qlock);
new_state = GST_STATE_PENDING (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
gst_queue_locked_flush (queue);
break;
case GST_STATE_READY_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_PLAYING:
if (!GST_PAD_IS_LINKED (queue->sinkpad)) {
GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s is not linked", GST_ELEMENT_NAME (queue));
/* FIXME can this be? */
if (queue->reader)
g_cond_signal (queue->not_empty);
if (new_state == GST_STATE_READY) {
gst_queue_locked_flush (queue);
}
else if (new_state == GST_STATE_PLAYING) {
if (!GST_PAD_IS_LINKED (queue->sinkpad)) {
GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s is not linked", GST_ELEMENT_NAME (queue));
/* FIXME can this be? */
if (queue->reader)
g_cond_signal (queue->not_empty);
g_mutex_unlock (queue->qlock);
ret = GST_STATE_FAILURE;
goto error;
}
else {
GstScheduler *src_sched, *sink_sched;
src_sched = gst_pad_get_scheduler (GST_PAD_CAST (queue->srcpad));
sink_sched = gst_pad_get_scheduler (GST_PAD_CAST (queue->sinkpad));
return GST_STATE_FAILURE;
}
queue->interrupt = FALSE;
if (src_sched == sink_sched) {
GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s does not connect different schedulers",
GST_ELEMENT_NAME (queue));
g_warning ("queue %s does connect different schedulers",
GST_ELEMENT_NAME (queue));
ret = GST_STATE_FAILURE;
goto error;
}
}
queue->interrupt = FALSE;
break;
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
gst_queue_locked_flush (queue);
break;
case GST_STATE_READY_TO_NULL:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
error:
g_mutex_unlock (queue->qlock);
GST_DEBUG_LEAVE("('%s')", GST_ELEMENT_NAME (element));

66
plugins/elements/gstqueue.c
View file

@ -581,11 +581,11 @@ gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
if (gst_element_get_state (GST_ELEMENT (queue)) == GST_STATE_PLAYING) {
/* push the event to the queue for upstream consumption */
g_async_queue_push(queue->events, event);
g_mutex_unlock (queue->qlock);
g_warning ("FIXME: sending event in a running queue");
/* FIXME wait for delivery of the event here, then return the result
* instead of FALSE */
return FALSE;
res = FALSE;
goto done;
}
event_type = GST_EVENT_TYPE (event);
@ -606,10 +606,12 @@ gst_queue_handle_src_event (GstPad *pad, GstEvent *event)
default:
break;
}
done:
g_mutex_unlock (queue->qlock);
/* we have to claim success, but we don't really know */
return TRUE;
return res;
}
static gboolean
@ -633,8 +635,6 @@ gst_queue_change_state (GstElement *element)
{
GstQueue *queue;
GstElementStateReturn ret;
GstElementState new_state;
g_return_val_if_fail (GST_IS_QUEUE (element), GST_STATE_FAILURE);
queue = GST_QUEUE (element);
@ -645,25 +645,53 @@ gst_queue_change_state (GstElement *element)
*/
g_mutex_lock (queue->qlock);
new_state = GST_STATE_PENDING (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_NULL_TO_READY:
gst_queue_locked_flush (queue);
break;
case GST_STATE_READY_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_PLAYING:
if (!GST_PAD_IS_LINKED (queue->sinkpad)) {
GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s is not linked", GST_ELEMENT_NAME (queue));
/* FIXME can this be? */
if (queue->reader)
g_cond_signal (queue->not_empty);
if (new_state == GST_STATE_READY) {
gst_queue_locked_flush (queue);
}
else if (new_state == GST_STATE_PLAYING) {
if (!GST_PAD_IS_LINKED (queue->sinkpad)) {
GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s is not linked", GST_ELEMENT_NAME (queue));
/* FIXME can this be? */
if (queue->reader)
g_cond_signal (queue->not_empty);
g_mutex_unlock (queue->qlock);
ret = GST_STATE_FAILURE;
goto error;
}
else {
GstScheduler *src_sched, *sink_sched;
src_sched = gst_pad_get_scheduler (GST_PAD_CAST (queue->srcpad));
sink_sched = gst_pad_get_scheduler (GST_PAD_CAST (queue->sinkpad));
return GST_STATE_FAILURE;
}
queue->interrupt = FALSE;
if (src_sched == sink_sched) {
GST_DEBUG_ELEMENT (GST_CAT_STATES, queue, "queue %s does not connect different schedulers",
GST_ELEMENT_NAME (queue));
g_warning ("queue %s does connect different schedulers",
GST_ELEMENT_NAME (queue));
ret = GST_STATE_FAILURE;
goto error;
}
}
queue->interrupt = FALSE;
break;
case GST_STATE_PLAYING_TO_PAUSED:
break;
case GST_STATE_PAUSED_TO_READY:
gst_queue_locked_flush (queue);
break;
case GST_STATE_READY_TO_NULL:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element);
error:
g_mutex_unlock (queue->qlock);
GST_DEBUG_LEAVE("('%s')", GST_ELEMENT_NAME (element));