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libs/gst/base/gstdataqueue.*: Various cleanups.

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Original commit message from CVS:
* libs/gst/base/gstdataqueue.c: (gst_data_queue_cleanup),
(gst_data_queue_finalize), (gst_data_queue_locked_is_empty),
(gst_data_queue_set_flushing), (gst_data_queue_push),
(gst_data_queue_pop), (gst_data_queue_drop_head),
(gst_data_queue_limits_changed), (gst_data_queue_get_level):
* libs/gst/base/gstdataqueue.h:
Various cleanups.
Added methods to get the current levels and to inform the queue that the
'full' limits changed.
* plugins/elements/gstmultiqueue.c: (gst_multi_queue_init),
(gst_multi_queue_finalize), (gst_multi_queue_set_property),
(gst_single_queue_flush), (update_time_level), (apply_segment),
(apply_buffer), (gst_single_queue_push_one),
(gst_multi_queue_item_steal_object),
(gst_multi_queue_item_destroy), (gst_multi_queue_item_new),
(gst_multi_queue_loop), (gst_multi_queue_chain),
(gst_multi_queue_sink_activate_push), (gst_multi_queue_sink_event),
(gst_multi_queue_getcaps), (gst_multi_queue_src_activate_push),
(gst_multi_queue_src_query), (single_queue_overrun_cb),
(single_queue_underrun_cb), (single_queue_check_full),
(gst_single_queue_new):
Keep track of time in the queue by measuring the difference between
running_time on input and output. This gives more accurate results and
can compensate for segments correctly.
Make a queue by default only 5 buffers deep. We will now increase the
buffer size depending on the filledness of the other queues.
Factor out commong flush code.
Make sure we don't add additional refcounts to buffers when we can avoid
it.
Propagate GstFlowReturn differently.
Use GSlice for intermediate GstMultiQueueItems.
Keep track of EOS.
Resize queues on over and underruns based on filled level of other
queues.
When checking if the queue is filled, prefer to measure in time if we
can and fall back to bytes when no time is known.
* plugins/elements/gstqueue.c:
Fix return value.
This commit is contained in:
Wim Taymans 2007-06-15 11:00:32 +00:00
parent 58cc3d675b
commit 0a3da772bb
5 changed files with 484 additions and 267 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

43
ChangeLog
View file

@ -1,3 +1,46 @@
2007-06-15 Wim Taymans <wim@fluendo.com>
* libs/gst/base/gstdataqueue.c: (gst_data_queue_cleanup),
(gst_data_queue_finalize), (gst_data_queue_locked_is_empty),
(gst_data_queue_set_flushing), (gst_data_queue_push),
(gst_data_queue_pop), (gst_data_queue_drop_head),
(gst_data_queue_limits_changed), (gst_data_queue_get_level):
* libs/gst/base/gstdataqueue.h:
Various cleanups.
Added methods to get the current levels and to inform the queue that the
'full' limits changed.
* plugins/elements/gstmultiqueue.c: (gst_multi_queue_init),
(gst_multi_queue_finalize), (gst_multi_queue_set_property),
(gst_single_queue_flush), (update_time_level), (apply_segment),
(apply_buffer), (gst_single_queue_push_one),
(gst_multi_queue_item_steal_object),
(gst_multi_queue_item_destroy), (gst_multi_queue_item_new),
(gst_multi_queue_loop), (gst_multi_queue_chain),
(gst_multi_queue_sink_activate_push), (gst_multi_queue_sink_event),
(gst_multi_queue_getcaps), (gst_multi_queue_src_activate_push),
(gst_multi_queue_src_query), (single_queue_overrun_cb),
(single_queue_underrun_cb), (single_queue_check_full),
(gst_single_queue_new):
Keep track of time in the queue by measuring the difference between
running_time on input and output. This gives more accurate results and
can compensate for segments correctly.
Make a queue by default only 5 buffers deep. We will now increase the
buffer size depending on the filledness of the other queues.
Factor out commong flush code.
Make sure we don't add additional refcounts to buffers when we can avoid
it.
Propagate GstFlowReturn differently.
Use GSlice for intermediate GstMultiQueueItems.
Keep track of EOS.
Resize queues on over and underruns based on filled level of other
queues.
When checking if the queue is filled, prefer to measure in time if we
can and fall back to bytes when no time is known.
* plugins/elements/gstqueue.c:
Fix return value.
2007-06-15 Wim Taymans <wim@fluendo.com>
* libs/gst/base/gstbasetransform.c:

98
libs/gst/base/gstdataqueue.c
View file

@ -248,7 +248,6 @@ gst_data_queue_cleanup (GstDataQueue * queue)
queue->cur_level.visible = 0;
queue->cur_level.bytes = 0;
queue->cur_level.time = 0;
}
/* called only once, as opposed to dispose */
@ -269,8 +268,7 @@ gst_data_queue_finalize (GObject * object)
g_cond_free (queue->item_add);
g_cond_free (queue->item_del);
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
@ -304,7 +302,6 @@ gst_data_queue_locked_is_full (GstDataQueue * queue)
* #gst_data_queue_pop will be released.
* MT safe.
*/
void
gst_data_queue_flush (GstDataQueue * queue)
{
@ -323,7 +320,6 @@ gst_data_queue_flush (GstDataQueue * queue)
*
* Returns: #TRUE if @queue is empty.
*/
gboolean
gst_data_queue_is_empty (GstDataQueue * queue)
{
@ -346,7 +342,6 @@ gst_data_queue_is_empty (GstDataQueue * queue)
*
* Returns: #TRUE if @queue is full.
*/
gboolean
gst_data_queue_is_full (GstDataQueue * queue)
{
@ -369,14 +364,14 @@ gst_data_queue_is_full (GstDataQueue * queue)
* blocking on #gst_data_queue_push or #gst_data_queue_pop will return straight
* away with a return value of #FALSE. While the @queue is in flushing state,
* all calls to those two functions will return #FALSE.
*
* MT Safe.
*/
void
gst_data_queue_set_flushing (GstDataQueue * queue, gboolean flushing)
{
GST_DEBUG ("queue:%p , flushing:%d", queue, flushing);
GST_DATA_QUEUE_MUTEX_LOCK (queue);
queue->flushing = flushing;
if (flushing) {
@ -407,28 +402,28 @@ gst_data_queue_set_flushing (GstDataQueue * queue, gboolean flushing)
gboolean
gst_data_queue_push (GstDataQueue * queue, GstDataQueueItem * item)
{
gboolean res = FALSE;
g_return_val_if_fail (GST_IS_DATA_QUEUE (queue), FALSE);
g_return_val_if_fail (item != NULL, FALSE);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, done);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, flushing);
STATUS (queue, "before pushing");
/* We ALWAYS need to check for queue fillness */
while (gst_data_queue_locked_is_full (queue)) {
if (gst_data_queue_locked_is_full (queue)) {
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
g_signal_emit (G_OBJECT (queue), gst_data_queue_signals[SIGNAL_FULL], 0);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, done);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, flushing);
/* signal might have removed some items */
while (gst_data_queue_locked_is_full (queue)) {
g_cond_wait (queue->item_del, queue->qlock);
if (queue->flushing)
goto done;
goto flushing;
}
}
g_queue_push_tail (queue->queue, item);
res = TRUE;
if (item->visible)
queue->cur_level.visible++;
@ -436,15 +431,19 @@ gst_data_queue_push (GstDataQueue * queue, GstDataQueueItem * item)
queue->cur_level.time += item->duration;
STATUS (queue, "after pushing");
g_cond_signal (queue->item_add);
done:
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
GST_DEBUG ("queue:%p, result:%d", queue, res);
return TRUE;
return res;
/* ERRORS */
flushing:
{
GST_DEBUG ("queue:%p, we are flushing", queue);
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
return FALSE;
}
}
/**
@ -459,35 +458,30 @@ done:
*
* Returns: #TRUE if an @item was successfully retrieved from the @queue.
*/
gboolean
gst_data_queue_pop (GstDataQueue * queue, GstDataQueueItem ** item)
{
gboolean res = FALSE;
GST_DEBUG ("queue:%p", queue);
g_return_val_if_fail (GST_IS_DATA_QUEUE (queue), FALSE);
g_return_val_if_fail (item != NULL, FALSE);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, done);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, flushing);
STATUS (queue, "before popping");
while (gst_data_queue_locked_is_empty (queue)) {
if (gst_data_queue_locked_is_empty (queue)) {
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
g_signal_emit (G_OBJECT (queue), gst_data_queue_signals[SIGNAL_EMPTY], 0);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, done);
GST_DATA_QUEUE_MUTEX_LOCK_CHECK (queue, flushing);
while (gst_data_queue_locked_is_empty (queue)) {
g_cond_wait (queue->item_add, queue->qlock);
if (queue->flushing)
goto done;
goto flushing;
}
}
/* Get the item from the GQueue */
*item = g_queue_pop_head (queue->queue);
res = TRUE;
/* update current level counter */
if ((*item)->visible)
@ -495,14 +489,20 @@ gst_data_queue_pop (GstDataQueue * queue, GstDataQueueItem ** item)
queue->cur_level.bytes -= (*item)->size;
queue->cur_level.time -= (*item)->duration;
STATUS (queue, "after popping");
g_cond_signal (queue->item_del);
done:
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
GST_DEBUG ("queue:%p , res:%d", queue, res);
return TRUE;
return res;
/* ERRORS */
flushing:
{
GST_DEBUG ("queue:%p, we are flushing", queue);
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
return FALSE;
}
}
/**
@ -514,7 +514,6 @@ done:
*
* Returns: TRUE if an element was removed.
*/
gboolean
gst_data_queue_drop_head (GstDataQueue * queue, GType type)
{
@ -522,6 +521,8 @@ gst_data_queue_drop_head (GstDataQueue * queue, GType type)
GList *item;
GstDataQueueItem *leak = NULL;
g_return_val_if_fail (GST_IS_DATA_QUEUE (queue), FALSE);
GST_DEBUG ("queue:%p", queue);
GST_DATA_QUEUE_MUTEX_LOCK (queue);
@ -556,6 +557,39 @@ done:
return res;
}
/**
* gst_data_queue_limits_changed:
* @queue: The #GstDataQueue
*
* Inform the queue that the limits for the fullness check have changed and that
* any blocking gst_data_queue_push() should be unblocked to recheck the limts.
*/
void
gst_data_queue_limits_changed (GstDataQueue * queue)
{
g_return_if_fail (GST_IS_DATA_QUEUE (queue));
GST_DATA_QUEUE_MUTEX_LOCK (queue);
GST_DEBUG ("signal del");
g_cond_signal (queue->item_del);
GST_DATA_QUEUE_MUTEX_UNLOCK (queue);
}
/**
* gst_data_queue_get_level:
* @queue: The #GstDataQueue
* @level: the location to store the result
*
* Get the current level of the queue.
*/
void
gst_data_queue_get_level (GstDataQueue * queue, GstDataQueueSize * level)
{
level->visible = queue->cur_level.visible;
level->bytes = queue->cur_level.bytes;
level->time = queue->cur_level.time;
}
static void
gst_data_queue_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)

22
libs/gst/base/gstdataqueue.h
View file

@ -137,19 +137,23 @@ struct _GstDataQueueClass
GType gst_data_queue_get_type (void);
GstDataQueue *gst_data_queue_new (GstDataQueueCheckFullFunction checkfull,
gpointer checkdata);
GstDataQueue * gst_data_queue_new (GstDataQueueCheckFullFunction checkfull,
gpointer checkdata);
gboolean gst_data_queue_push (GstDataQueue * queue, GstDataQueueItem * item);
gboolean gst_data_queue_pop (GstDataQueue * queue, GstDataQueueItem ** item);
gboolean gst_data_queue_push (GstDataQueue * queue, GstDataQueueItem * item);
gboolean gst_data_queue_pop (GstDataQueue * queue, GstDataQueueItem ** item);
void gst_data_queue_flush (GstDataQueue * queue);
void gst_data_queue_set_flushing (GstDataQueue * queue, gboolean flushing);
void gst_data_queue_flush (GstDataQueue * queue);
void gst_data_queue_set_flushing (GstDataQueue * queue, gboolean flushing);
gboolean gst_data_queue_drop_head (GstDataQueue * queue, GType type);
gboolean gst_data_queue_drop_head (GstDataQueue * queue, GType type);
gboolean gst_data_queue_is_full (GstDataQueue * queue);
gboolean gst_data_queue_is_empty (GstDataQueue * queue);
gboolean gst_data_queue_is_full (GstDataQueue * queue);
gboolean gst_data_queue_is_empty (GstDataQueue * queue);
void gst_data_queue_get_level (GstDataQueue * queue, GstDataQueueSize *level);
void gst_data_queue_limits_changed (GstDataQueue * queue);
G_END_DECLS
#endif /* __GST_DATA_QUEUE_H__ */

586
plugins/elements/gstmultiqueue.c
View file

@ -34,7 +34,6 @@
* Structure containing all information and properties about
* a single queue.
*/
typedef struct _GstSingleQueue GstSingleQueue;
struct _GstSingleQueue
@ -49,10 +48,14 @@ struct _GstSingleQueue
/* flowreturn of previous srcpad push */
GstFlowReturn srcresult;
GstSegment sink_segment;
GstSegment src_segment;
/* queue of data */
GstDataQueue *queue;
GstDataQueueSize max_size, extra_size;
GstClockTime cur_time;
gboolean is_eos;
gboolean inextra; /* TRUE if the queue is currently in extradata mode */
/* Protected by global lock */
@ -101,13 +104,20 @@ GST_ELEMENT_DETAILS ("MultiQueue",
"Multiple data queue",
"Edward Hervey <edward@fluendo.com>");
/* default limits, we try to keep up to 2 seconds of data and if there is not
* time, up to 10 MB. The number of buffers is dynamically scaled to make sure
* there is data in the queues. Normally, the byte and time limits are not hit
* in theses conditions. */
#define DEFAULT_MAX_SIZE_BYTES 10 * 1024 * 1024 /* 10 MB */
#define DEFAULT_MAX_SIZE_BUFFERS 200
#define DEFAULT_MAX_SIZE_TIME GST_SECOND
#define DEFAULT_MAX_SIZE_BUFFERS 5
#define DEFAULT_MAX_SIZE_TIME 2 * GST_SECOND
/* second limits. When we hit one of the above limits we are probably dealing
* with a badly muxed file and we scale the limits to these emergency values.
* This is currently not yet implemented. */
#define DEFAULT_EXTRA_SIZE_BYTES 10 * 1024 * 1024 /* 10 MB */
#define DEFAULT_EXTRA_SIZE_BUFFERS 200
#define DEFAULT_EXTRA_SIZE_TIME GST_SECOND
#define DEFAULT_EXTRA_SIZE_BUFFERS 5
#define DEFAULT_EXTRA_SIZE_TIME 3 * GST_SECOND
/* Signals and args */
enum
@ -129,19 +139,10 @@ enum
};
#define GST_MULTI_QUEUE_MUTEX_LOCK(q) G_STMT_START { \
GST_CAT_LOG_OBJECT (multi_queue_debug, q, \
"locking qlock from thread %p", \
g_thread_self ()); \
g_mutex_lock (q->qlock); \
GST_CAT_LOG_OBJECT (multi_queue_debug, q, \
"locked qlock from thread %p", \
g_thread_self ()); \
} G_STMT_END
#define GST_MULTI_QUEUE_MUTEX_UNLOCK(q) G_STMT_START { \
GST_CAT_LOG_OBJECT (multi_queue_debug, q, \
"unlocking qlock from thread %p", \
g_thread_self ()); \
g_mutex_unlock (q->qlock); \
} G_STMT_END
@ -155,6 +156,8 @@ static GstPad *gst_multi_queue_request_new_pad (GstElement * element,
GstPadTemplate * temp, const gchar * name);
static void gst_multi_queue_release_pad (GstElement * element, GstPad * pad);
static void gst_multi_queue_loop (GstPad * pad);
#define _do_init(bla) \
GST_DEBUG_CATEGORY_INIT (multi_queue_debug, "multiqueue", 0, "multiqueue element");
@ -236,7 +239,6 @@ gst_multi_queue_class_init (GstMultiQueueClass * klass)
static void
gst_multi_queue_init (GstMultiQueue * mqueue, GstMultiQueueClass * klass)
{
mqueue->nbqueues = 0;
mqueue->queues = NULL;
@ -253,8 +255,6 @@ gst_multi_queue_init (GstMultiQueue * mqueue, GstMultiQueueClass * klass)
mqueue->nextnotlinked = -1;
mqueue->qlock = g_mutex_new ();
/* FILLME ? */
}
static void
@ -269,8 +269,7 @@ gst_multi_queue_finalize (GObject * object)
/* free/unref instance data */
g_mutex_free (mqueue->qlock);
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
#define SET_CHILD_PROPERTY(mq,name,value) G_STMT_START { \
@ -314,7 +313,6 @@ gst_multi_queue_set_property (GObject * object, guint prop_id,
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
@ -423,59 +421,202 @@ gst_multi_queue_release_pad (GstElement * element, GstPad * pad)
}
static gboolean
gst_single_queue_flush (GstMultiQueue * mq, GstSingleQueue * sq, gboolean flush)
{
gboolean result;
GST_DEBUG_OBJECT (mq, "flush %s queue %d", (flush ? "start" : "stop"),
sq->id);
if (flush) {
sq->srcresult = GST_FLOW_WRONG_STATE;
gst_data_queue_set_flushing (sq->queue, TRUE);
/* wake up non-linked task */
GST_LOG_OBJECT (mq, "SingleQueue %d : waking up eventually waiting task",
sq->id);
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
g_cond_signal (sq->turn);
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
GST_LOG_OBJECT (mq, "SingleQueue %d : pausing task", sq->id);
result = gst_pad_pause_task (sq->srcpad);
} else {
gst_data_queue_flush (sq->queue);
gst_segment_init (&sq->sink_segment, GST_FORMAT_TIME);
gst_segment_init (&sq->src_segment, GST_FORMAT_TIME);
sq->srcresult = GST_FLOW_OK;
sq->max_size.visible = mq->max_size.visible;
sq->is_eos = FALSE;
sq->inextra = FALSE;
sq->nextid = -1;
sq->oldid = -1;
gst_data_queue_set_flushing (sq->queue, FALSE);
GST_LOG_OBJECT (mq, "SingleQueue %d : starting task", sq->id);
result =
gst_pad_start_task (sq->srcpad, (GstTaskFunction) gst_multi_queue_loop,
sq->srcpad);
}
return result;
}
/* calculate the diff between running time on the sink and src of the queue.
* This is the total amount of time in the queue. */
static void
update_time_level (GstMultiQueue * mq, GstSingleQueue * sq)
{
gint64 sink_time, src_time;
sink_time =
gst_segment_to_running_time (&sq->sink_segment, GST_FORMAT_TIME,
sq->sink_segment.last_stop);
src_time = gst_segment_to_running_time (&sq->src_segment, GST_FORMAT_TIME,
sq->src_segment.last_stop);
GST_DEBUG_OBJECT (mq,
"queue %d, sink %" GST_TIME_FORMAT ", src %" GST_TIME_FORMAT, sq->id,
GST_TIME_ARGS (sink_time), GST_TIME_ARGS (src_time));
if (sink_time >= src_time)
sq->cur_time = sink_time - src_time;
else
sq->cur_time = 0;
}
/* take a NEWSEGMENT event and apply the values to segment, updating the time
* level of queue. */
static void
apply_segment (GstMultiQueue * mq, GstSingleQueue * sq, GstEvent * event,
GstSegment * segment)
{
gboolean update;
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time;
gst_event_parse_new_segment_full (event, &update, &rate, &arate,
&format, &start, &stop, &time);
/* now configure the values, we use these to track timestamps on the
* sinkpad. */
if (format != GST_FORMAT_TIME) {
/* non-time format, pretent the current time segment is closed with a
* 0 start and unknown stop time. */
update = FALSE;
format = GST_FORMAT_TIME;
start = 0;
stop = -1;
time = 0;
}
gst_segment_set_newsegment_full (segment, update,
rate, arate, format, start, stop, time);
GST_DEBUG_OBJECT (mq,
"queue %d, configured NEWSEGMENT %" GST_SEGMENT_FORMAT, sq->id, segment);
/* segment can update the time level of the queue */
update_time_level (mq, sq);
}
/* take a buffer and update segment, updating the time level of the queue. */
static void
apply_buffer (GstMultiQueue * mq, GstSingleQueue * sq, GstBuffer * buffer,
GstSegment * segment)
{
GstClockTime duration, timestamp;
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
/* if no timestamp is set, assume it's continuous with the previous
* time */
if (timestamp == GST_CLOCK_TIME_NONE)
timestamp = segment->last_stop;
/* add duration */
if (duration != GST_CLOCK_TIME_NONE)
timestamp += duration;
GST_DEBUG_OBJECT (mq, "queue %d, last_stop updated to %" GST_TIME_FORMAT,
sq->id, GST_TIME_ARGS (timestamp));
gst_segment_set_last_stop (segment, GST_FORMAT_TIME, timestamp);
/* calc diff with other end */
update_time_level (mq, sq);
}
static GstFlowReturn
gst_single_queue_push_one (GstMultiQueue * mq, GstSingleQueue * sq,
GstMiniObject * object)
{
GstFlowReturn result = GST_FLOW_OK;
if (GST_IS_BUFFER (object)) {
GstBuffer *buf;
GstBuffer *buffer;
buf = gst_buffer_ref (GST_BUFFER_CAST (object));
sq->srcresult = gst_pad_push (sq->srcpad, buf);
buffer = GST_BUFFER_CAST (object);
if ((sq->srcresult != GST_FLOW_OK)
&& (sq->srcresult != GST_FLOW_NOT_LINKED)) {
GST_DEBUG_OBJECT (mq, "GstSingleQueue %d : pausing queue, reason %s",
sq->id, gst_flow_get_name (sq->srcresult));
gst_data_queue_set_flushing (sq->queue, TRUE);
gst_pad_pause_task (sq->srcpad);
}
apply_buffer (mq, sq, buffer, &sq->src_segment);
result = gst_pad_push (sq->srcpad, buffer);
} else if (GST_IS_EVENT (object)) {
GstEvent *event;
event = gst_event_ref (GST_EVENT_CAST (object));
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS) {
sq->srcresult = GST_FLOW_UNEXPECTED;
event = GST_EVENT_CAST (object);
GST_DEBUG_OBJECT (mq, "GstSingleQueue %d : pausing queue, got EOS",
sq->id);
gst_data_queue_set_flushing (sq->queue, TRUE);
gst_pad_pause_task (sq->srcpad);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
result = GST_FLOW_UNEXPECTED;
break;
case GST_EVENT_NEWSEGMENT:
apply_segment (mq, sq, event, &sq->src_segment);
break;
default:
break;
}
gst_pad_push_event (sq->srcpad, event);
} else {
g_warning ("Unexpected object in singlequeue %d (refcounting problem?)",
sq->id);
}
return result;
return FALSE;
/* ERRORS */
}
static GstMiniObject *
gst_multi_queue_item_steal_object (GstMultiQueueItem * item)
{
GstMiniObject *res;
res = item->object;
item->object = NULL;
return res;
}
static void
gst_multi_queue_item_destroy (GstMultiQueueItem * item)
{
gst_mini_object_unref (item->object);
g_free (item);
if (item->object)
gst_mini_object_unref (item->object);
g_slice_free (GstMultiQueueItem, item);
}
/* takes ownership of passed mini object! */
static GstMultiQueueItem *
gst_multi_queue_item_new (GstMiniObject * object)
gst_multi_queue_item_new (GstMiniObject * object, guint32 curid)
{
GstMultiQueueItem *item;
item = g_new0 (GstMultiQueueItem, 1);
item = g_slice_new (GstMultiQueueItem);
item->object = object;
item->destroy = (GDestroyNotify) gst_multi_queue_item_destroy;
item->posid = curid;
if (GST_IS_BUFFER (object)) {
item->size = GST_BUFFER_SIZE (object);
@ -483,8 +624,11 @@ gst_multi_queue_item_new (GstMiniObject * object)
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = TRUE;
} else {
item->size = 0;
item->duration = 0;
item->visible = FALSE;
}
return item;
}
@ -498,101 +642,95 @@ gst_multi_queue_loop (GstPad * pad)
GstMiniObject *object;
guint32 newid;
guint32 oldid = -1;
GstFlowReturn result;
sq = (GstSingleQueue *) gst_pad_get_element_private (pad);
mq = sq->mqueue;
restart:
GST_DEBUG_OBJECT (mq, "SingleQueue %d : trying to pop an object", sq->id);
if (!(gst_data_queue_pop (sq->queue, &sitem))) {
/* QUEUE FLUSHING */
if (sq->srcresult != GST_FLOW_OK)
goto out_flushing;
else
GST_WARNING_OBJECT (mq,
"data_queue_pop() returned FALSE, but srcresult == GST_FLOW_OK !");
} else {
item = (GstMultiQueueItem *) sitem;
newid = item->posid;
object = item->object;
GST_LOG_OBJECT (mq, "SingleQueue %d : newid:%d , oldid:%d",
sq->id, newid, oldid);
if (!(gst_data_queue_pop (sq->queue, &sitem)))
goto out_flushing;
/* 1. Only check turn if :
* _ We haven't pushed anything yet
* _ OR the new id isn't the follower of the previous one (continuous segment) */
if ((oldid == -1) || (newid != (oldid + 1))) {
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
item = (GstMultiQueueItem *) sitem;
newid = item->posid;
/* steal the object and destroy the item */
object = gst_multi_queue_item_steal_object (item);
gst_multi_queue_item_destroy (item);
GST_LOG_OBJECT (mq, "CHECKING sq->srcresult: %s",
gst_flow_get_name (sq->srcresult));
GST_LOG_OBJECT (mq, "SingleQueue %d : newid:%d , oldid:%d",
sq->id, newid, oldid);
/* preamble : if we're not linked, set the newid as the next one we want */
if (sq->srcresult == GST_FLOW_NOT_LINKED)
sq->nextid = newid;
/* 1. Only check turn if :
* _ We haven't pushed anything yet
* _ OR the new id isn't the follower of the previous one (continuous segment) */
if ((oldid == -1) || (newid != (oldid + 1))) {
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
/* store the last id we outputted */
if (oldid != -1)
sq->oldid = oldid;
GST_LOG_OBJECT (mq, "CHECKING sq->srcresult: %s",
gst_flow_get_name (sq->srcresult));
/* 2. If there's a queue waiting to push, wake it up. If it's us the */
/* check below (3.) will avoid us waiting. */
wake_up_next_non_linked (mq);
/* preamble : if we're not linked, set the newid as the next one we want */
if (sq->srcresult == GST_FLOW_NOT_LINKED)
sq->nextid = newid;
/* 3. If we're not linked AND our nextid is higher than the highest oldid outputted
* _ Update global next-not-linked
* _ Wait on our conditional
*/
while ((sq->srcresult == GST_FLOW_NOT_LINKED)
&& (mq->nextnotlinked != sq->id)) {
compute_next_non_linked (mq);
g_cond_wait (sq->turn, mq->qlock);
}
/* store the last id we outputted */
if (oldid != -1)
sq->oldid = oldid;
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
/* 2. If there's a queue waiting to push, wake it up. If it's us the */
/* check below (3.) will avoid us waiting. */
wake_up_next_non_linked (mq);
/* 4. Check again status, maybe we're flushing */
if ((sq->srcresult != GST_FLOW_OK)
&& (sq->srcresult != GST_FLOW_NOT_LINKED)) {
gst_multi_queue_item_destroy (item);
goto out_flushing;
}
/* 3. If we're not linked AND our nextid is higher than the highest oldid outputted
* _ Update global next-not-linked
* _ Wait on our conditional
*/
while ((sq->srcresult == GST_FLOW_NOT_LINKED)
&& (mq->nextnotlinked != sq->id)) {
compute_next_non_linked (mq);
g_cond_wait (sq->turn, mq->qlock);
}
GST_LOG_OBJECT (mq, "BEFORE PUSHING sq->srcresult: %s",
gst_flow_get_name (sq->srcresult));
/* 4. Try to push out the new object */
gst_single_queue_push_one (mq, sq, object);
GST_LOG_OBJECT (mq, "AFTER PUSHING sq->srcresult: %s",
gst_flow_get_name (sq->srcresult));
gst_multi_queue_item_destroy (item);
oldid = newid;
/* 5. if GstFlowReturn is non-fatal, goto restart */
if ((sq->srcresult == GST_FLOW_OK)
|| (sq->srcresult == GST_FLOW_NOT_LINKED))
goto restart;
/* 4. Check again status, maybe we're flushing */
if ((sq->srcresult != GST_FLOW_OK)) {
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
gst_mini_object_unref (object);
goto out_flushing;
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
}
GST_LOG_OBJECT (mq, "BEFORE PUSHING sq->srcresult: %s",
gst_flow_get_name (sq->srcresult));
beach:
return;
/* 4. Try to push out the new object */
result = gst_single_queue_push_one (mq, sq, object);
sq->srcresult = result;
if (result != GST_FLOW_OK && result != GST_FLOW_NOT_LINKED)
goto out_flushing;
GST_LOG_OBJECT (mq, "AFTER PUSHING sq->srcresult: %s",
gst_flow_get_name (sq->srcresult));
oldid = newid;
/* restart to get the next element */
goto restart;
/* ERRORS */
out_flushing:
{
gst_data_queue_set_flushing (sq->queue, TRUE);
gst_pad_pause_task (sq->srcpad);
GST_CAT_LOG_OBJECT (multi_queue_debug, mq,
"SingleQueue[%d] task paused, reason:%s",
sq->id, gst_flow_get_name (sq->srcresult));
goto beach;
return;
}
}
/**
* gst_multi_queue_chain:
*
@ -600,7 +738,6 @@ out_flushing:
* _ we don't have leak behavioures,
* _ we push with a unique id (curid)
*/
static GstFlowReturn
gst_multi_queue_chain (GstPad * pad, GstBuffer * buffer)
{
@ -613,7 +750,7 @@ gst_multi_queue_chain (GstPad * pad, GstBuffer * buffer)
sq = gst_pad_get_element_private (pad);
mq = (GstMultiQueue *) gst_pad_get_parent (pad);
/* Get an unique incrementing id */
/* Get a unique incrementing id */
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
curid = mq->counter++;
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
@ -621,18 +758,28 @@ gst_multi_queue_chain (GstPad * pad, GstBuffer * buffer)
GST_LOG_OBJECT (mq, "SingleQueue %d : about to push buffer with id %d",
sq->id, curid);
item = gst_multi_queue_item_new ((GstMiniObject *) buffer);
item->posid = curid;
item = gst_multi_queue_item_new (GST_MINI_OBJECT_CAST (buffer), curid);
if (!(gst_data_queue_push (sq->queue, (GstDataQueueItem *) item))) {
GST_LOG_OBJECT (mq, "SingleQueue %d : exit because task paused, reason: %s",
sq->id, gst_flow_get_name (sq->srcresult));
gst_multi_queue_item_destroy (item);
ret = sq->srcresult;
}
/* update time level */
apply_buffer (mq, sq, buffer, &sq->sink_segment);
if (!(gst_data_queue_push (sq->queue, (GstDataQueueItem *) item)))
goto flushing;
done:
gst_object_unref (mq);
return ret;
/* ERRORS */
flushing:
{
ret = sq->srcresult;
GST_LOG_OBJECT (mq, "SingleQueue %d : exit because task paused, reason: %s",
sq->id, gst_flow_get_name (ret));
gst_multi_queue_item_destroy (item);
goto done;
}
}
static gboolean
@ -642,13 +789,12 @@ gst_multi_queue_sink_activate_push (GstPad * pad, gboolean active)
sq = (GstSingleQueue *) gst_pad_get_element_private (pad);
if (active)
if (active) {
sq->srcresult = GST_FLOW_OK;
else {
} else {
sq->srcresult = GST_FLOW_WRONG_STATE;
gst_data_queue_flush (sq->queue);
}
return TRUE;
}
@ -659,50 +805,40 @@ gst_multi_queue_sink_event (GstPad * pad, GstEvent * event)
GstMultiQueue *mq;
guint32 curid;
GstMultiQueueItem *item;
gboolean res;
GstEventType type;
sq = (GstSingleQueue *) gst_pad_get_element_private (pad);
mq = (GstMultiQueue *) gst_pad_get_parent (pad);
switch (GST_EVENT_TYPE (event)) {
type = GST_EVENT_TYPE (event);
switch (type) {
case GST_EVENT_FLUSH_START:
GST_DEBUG_OBJECT (mq, "SingleQueue %d : received flush start event",
sq->id);
gst_pad_push_event (sq->srcpad, event);
res = gst_pad_push_event (sq->srcpad, event);
sq->srcresult = GST_FLOW_WRONG_STATE;
gst_data_queue_set_flushing (sq->queue, TRUE);
/* wake up non-linked task */
GST_LOG_OBJECT (mq, "SingleQueue %d : waking up eventually waiting task",
sq->id);
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
g_cond_signal (sq->turn);
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
gst_pad_pause_task (sq->srcpad);
gst_single_queue_flush (mq, sq, TRUE);
goto done;
case GST_EVENT_FLUSH_STOP:
GST_DEBUG_OBJECT (mq, "SingleQueue %d : received flush stop event",
sq->id);
gst_pad_push_event (sq->srcpad, event);
res = gst_pad_push_event (sq->srcpad, event);
gst_data_queue_flush (sq->queue);
gst_data_queue_set_flushing (sq->queue, FALSE);
sq->srcresult = GST_FLOW_OK;
sq->nextid = -1;
sq->oldid = -1;
GST_DEBUG_OBJECT (mq, "SingleQueue %d : restarting task", sq->id);
gst_pad_start_task (sq->srcpad, (GstTaskFunction) gst_multi_queue_loop,
sq->srcpad);
gst_single_queue_flush (mq, sq, FALSE);
goto done;
case GST_EVENT_NEWSEGMENT:
apply_segment (mq, sq, event, &sq->sink_segment);
break;
default:
if (!(GST_EVENT_IS_SERIALIZED (event))) {
gst_pad_push_event (sq->srcpad, event);
res = gst_pad_push_event (sq->srcpad, event);
goto done;
}
break;
@ -713,22 +849,33 @@ gst_multi_queue_sink_event (GstPad * pad, GstEvent * event)
curid = mq->counter++;
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
item = gst_multi_queue_item_new ((GstMiniObject *) event);
item->posid = curid;
item = gst_multi_queue_item_new ((GstMiniObject *) event, curid);
GST_DEBUG_OBJECT (mq,
"SingleQueue %d : Adding event %p of type %s with id %d", sq->id, event,
GST_EVENT_TYPE_NAME (event), curid);
if (!(gst_data_queue_push (sq->queue, (GstDataQueueItem *) item))) {
GST_LOG_OBJECT (mq, "SingleQueue %d : exit because task paused, reason: %s",
sq->id, gst_flow_get_name (sq->srcresult));
gst_multi_queue_item_destroy (item);
}
if (!(res = gst_data_queue_push (sq->queue, (GstDataQueueItem *) item)))
goto flushing;
/* mark EOS when we received one, we must do that after putting the
* buffer in the queue because EOS marks the buffer as filled. No need to take
* a lock, the _check_full happens from this thread only, right before pushing
* into dataqueue. */
if (type == GST_EVENT_EOS)
sq->is_eos = TRUE;
done:
gst_object_unref (mq);
return TRUE;
return res;
flushing:
{
GST_LOG_OBJECT (mq, "SingleQueue %d : exit because task paused, reason: %s",
sq->id, gst_flow_get_name (sq->srcresult));
gst_multi_queue_item_destroy (item);
goto done;
}
}
static GstCaps *
@ -738,8 +885,6 @@ gst_multi_queue_getcaps (GstPad * pad)
GstPad *otherpad;
GstCaps *result;
GST_LOG_OBJECT (pad, "...");
otherpad = (pad == sq->srcpad) ? sq->sinkpad : sq->srcpad;
GST_LOG_OBJECT (otherpad, "Getting caps from the peer of this pad");
@ -773,27 +918,12 @@ gst_multi_queue_src_activate_push (GstPad * pad, gboolean active)
GST_LOG ("SingleQueue %d", sq->id);
if (active) {
sq->srcresult = GST_FLOW_OK;
gst_data_queue_set_flushing (sq->queue, FALSE);
result = gst_pad_start_task (pad, (GstTaskFunction) gst_multi_queue_loop,
pad);
result = gst_single_queue_flush (mq, sq, FALSE);
} else {
/* 1. unblock loop function */
sq->srcresult = GST_FLOW_WRONG_STATE;
gst_data_queue_set_flushing (sq->queue, TRUE);
/* 2. unblock potentially non-linked pad */
GST_LOG_OBJECT (mq, "SingleQueue %d : waking up eventually waiting task",
sq->id);
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
g_cond_signal (sq->turn);
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
/* 3. make sure streaming finishes */
result = gst_pad_stop_task (pad);
gst_data_queue_set_flushing (sq->queue, FALSE);
result = gst_single_queue_flush (mq, sq, TRUE);
/* make sure streaming finishes */
result |= gst_pad_stop_task (pad);
}
return result;
}
@ -818,8 +948,7 @@ gst_multi_queue_src_query (GstPad * pad, GstQuery * query)
GstPad *peerpad;
gboolean res;
/* FILLME */
/* Handle position offset depending on queue size */
/* FIXME, Handle position offset depending on queue size */
/* default handling */
if (!(peerpad = gst_pad_get_peer (sq->sinkpad)))
@ -831,6 +960,7 @@ gst_multi_queue_src_query (GstPad * pad, GstQuery * query)
return res;
/* ERRORS */
no_peer:
{
GST_LOG_OBJECT (sq->sinkpad, "Couldn't send query because we have no peer");
@ -838,7 +968,6 @@ no_peer:
}
}
/*
* Next-non-linked functions
*/
@ -903,32 +1032,34 @@ compute_next_non_linked (GstMultiQueue * mq)
/*
* GstSingleQueue functions
*/
static void
single_queue_overrun_cb (GstDataQueue * dq, GstSingleQueue * sq)
{
GstMultiQueue *mq = sq->mqueue;
GList *tmp;
GstDataQueueSize size;
gst_data_queue_get_level (sq->queue, &size);
GST_LOG_OBJECT (sq->mqueue, "Single Queue %d is full", sq->id);
if (!sq->inextra) {
/* Check if at least one other queue is empty... */
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
for (tmp = mq->queues; tmp; tmp = g_list_next (tmp)) {
GstSingleQueue *ssq = (GstSingleQueue *) tmp->data;
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
for (tmp = mq->queues; tmp; tmp = g_list_next (tmp)) {
GstSingleQueue *ssq = (GstSingleQueue *) tmp->data;
if (gst_data_queue_is_empty (ssq->queue)) {
/* ... if so set sq->inextra to TRUE and don't emit overrun signal */
if (gst_data_queue_is_empty (ssq->queue)) {
if (size.visible == sq->max_size.visible) {
sq->max_size.visible++;
GST_DEBUG_OBJECT (mq,
"Another queue is empty, bumping single queue into extra data mode");
sq->inextra = TRUE;
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
goto beach;
"Another queue is empty, bumping single queue %d max visible to %d",
sq->id, sq->max_size.visible);
g_print ("overrun: queue %d, limit %d\n", sq->id, sq->max_size.visible);
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
goto beach;
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
/* Overrun is always forwarded, since this is blocking the upstream element */
g_signal_emit (G_OBJECT (sq->mqueue), gst_multi_queue_signals[SIGNAL_OVERRUN],
@ -946,17 +1077,28 @@ single_queue_underrun_cb (GstDataQueue * dq, GstSingleQueue * sq)
GList *tmp;
GST_LOG_OBJECT (mq,
"Single Queue %d is empty, Checking if all single queues are empty",
sq->id);
"Single Queue %d is empty, Checking other single queues", sq->id);
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
for (tmp = mq->queues; tmp; tmp = g_list_next (tmp)) {
GstSingleQueue *sq = (GstSingleQueue *) tmp->data;
if (!gst_data_queue_is_empty (sq->queue)) {
empty = FALSE;
break;
if (gst_data_queue_is_full (sq->queue)) {
GstDataQueueSize size;
gst_data_queue_get_level (sq->queue, &size);
if (size.visible == sq->max_size.visible) {
sq->max_size.visible++;
GST_DEBUG_OBJECT (mq,
"queue %d is filled, bumping its max visible to %d", sq->id,
sq->max_size.visible);
g_print ("underrun: queue %d, limit %d\n", sq->id,
sq->max_size.visible);
gst_data_queue_limits_changed (sq->queue);
}
}
if (!gst_data_queue_is_empty (sq->queue))
empty = FALSE;
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
@ -972,31 +1114,27 @@ single_queue_check_full (GstDataQueue * dataq, guint visible, guint bytes,
{
gboolean res;
/* In all cases (extra mode or not), we check how the queue current level
* compares to max_size. */
res = (((sq->max_size.visible != 0) &&
sq->max_size.visible < visible) ||
((sq->max_size.bytes != 0) &&
sq->max_size.bytes < bytes) ||
((sq->max_size.time != 0) && sq->max_size.time < time));
GST_DEBUG ("queue %d: visible %u/%u, bytes %u/%u, time %" G_GUINT64_FORMAT
"/%" G_GUINT64_FORMAT, sq->id, visible, sq->max_size.visible, bytes,
sq->max_size.bytes, sq->cur_time, sq->max_size.time);
if (G_UNLIKELY (sq->inextra)) {
/* If we're in extra mode, one of two things can happen to check for
* fullness: */
/* we are always filled on EOS */
if (sq->is_eos)
return TRUE;
if (!res)
/* #1 : Either we are not full against normal max_size levels, in which
* case we can go out of extra mode. */
sq->inextra = FALSE;
else
/* #2 : Or else, the check should be done against max_size + extra_size */
res = (((sq->max_size.visible != 0) &&
(sq->max_size.visible + sq->extra_size.visible) < visible) ||
((sq->max_size.bytes != 0) &&
(sq->max_size.bytes + sq->extra_size.bytes) < bytes) ||
((sq->max_size.time != 0) &&
(sq->max_size.time + sq->extra_size.time) < time));
#define IS_FILLED(format, value) ((sq->max_size.format) != 0 && \
(sq->max_size.format) <= (value))
/* we never go past the max visible items */
if (IS_FILLED (visible, visible))
return TRUE;
if (sq->cur_time != 0) {
/* if we have valid time in the queue, check */
res = IS_FILLED (time, sq->cur_time);
} else {
/* no valid time, check bytes */
res = IS_FILLED (bytes, bytes);
}
return res;
}
@ -1024,8 +1162,6 @@ gst_single_queue_new (GstMultiQueue * mqueue)
/* copy over max_size and extra_size so we don't need to take the lock
* any longer when checking if the queue is full. */
/* FIXME : We can't modify those values once the single queue is created
* since we don't have any lock protecting those values. */
sq->max_size.visible = mqueue->max_size.visible;
sq->max_size.bytes = mqueue->max_size.bytes;
sq->max_size.time = mqueue->max_size.time;
@ -1039,20 +1175,20 @@ gst_single_queue_new (GstMultiQueue * mqueue)
GST_DEBUG_OBJECT (mqueue, "Creating GstSingleQueue id:%d", sq->id);
sq->mqueue = mqueue;
sq->srcresult = GST_FLOW_OK;
sq->srcresult = GST_FLOW_WRONG_STATE;
sq->queue = gst_data_queue_new ((GstDataQueueCheckFullFunction)
single_queue_check_full, sq);
sq->is_eos = FALSE;
gst_segment_init (&sq->sink_segment, GST_FORMAT_TIME);
gst_segment_init (&sq->src_segment, GST_FORMAT_TIME);
sq->nextid = -1;
sq->oldid = -1;
sq->turn = g_cond_new ();
/* FIXME : attach to underrun/overrun signals to handle non-starvation
* OR should this be handled when we check if the queue is full/empty before pushing/popping ? */
/* attach to underrun/overrun signals to handle non-starvation */
g_signal_connect (G_OBJECT (sq->queue), "full",
G_CALLBACK (single_queue_overrun_cb), sq);
g_signal_connect (G_OBJECT (sq->queue), "empty",
G_CALLBACK (single_queue_underrun_cb), sq);

2
plugins/elements/gstqueue.c
View file

@ -195,7 +195,7 @@ static GstFlowReturn gst_queue_chain (GstPad * pad, GstBuffer * buffer);
static GstFlowReturn gst_queue_bufferalloc (GstPad * pad, guint64 offset,
guint size, GstCaps * caps, GstBuffer ** buf);
static gboolean gst_queue_acceptcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_queue_push_one (GstQueue * queue);
static GstFlowReturn gst_queue_push_one (GstQueue * queue);
static void gst_queue_loop (GstPad * pad);
static gboolean gst_queue_handle_sink_event (GstPad * pad, GstEvent * event);