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gst/playback/gstqueue2.c: Use separate timers for input and output rates.

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Original commit message from CVS:
* gst/playback/gstqueue2.c: (gst_queue_init), (gst_queue_finalize),
(reset_rate_timer), (update_in_rates), (update_out_rates),
(gst_queue_locked_enqueue), (gst_queue_locked_dequeue),
(gst_queue_chain), (gst_queue_loop):
Use separate timers for input and output rates.
Pause measuring the output rate when we block for more data.
See #503262.
This commit is contained in:
Wim Taymans 2007-12-14 18:46:12 +00:00
parent 9153699f65
commit 671d766d8a
2 changed files with 103 additions and 41 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2007-12-14 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/playback/gstqueue2.c: (gst_queue_init), (gst_queue_finalize),
(reset_rate_timer), (update_in_rates), (update_out_rates),
(gst_queue_locked_enqueue), (gst_queue_locked_dequeue),
(gst_queue_chain), (gst_queue_loop):
Use separate timers for input and output rates.
Pause measuring the output rate when we block for more data.
See #503262.
2007-12-14 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/playback/gstqueue2.c: (gst_queue_chain):

134
gst/playback/gstqueue2.c
View file

@ -177,13 +177,17 @@ struct _GstQueue
guint buffering_iteration;
/* for measuring input/output rates */
GTimer *in_timer;
gboolean in_timer_started;
gdouble last_in_elapsed;
guint64 bytes_in;
guint64 bytes_out;
GTimer *timer;
gdouble byte_in_rate;
GTimer *out_timer;
gboolean out_timer_started;
gdouble last_out_elapsed;
guint64 bytes_out;
gdouble byte_out_rate;
gdouble last_elapsed;
gboolean timer_started;
GMutex *qlock; /* lock for queue (vs object lock) */
gboolean waiting_add;
@ -469,7 +473,8 @@ gst_queue_init (GstQueue * queue, GstQueueClass * g_class)
queue->srcresult = GST_FLOW_WRONG_STATE;
queue->is_eos = FALSE;
queue->timer = g_timer_new ();
queue->in_timer = g_timer_new ();
queue->out_timer = g_timer_new ();
queue->qlock = g_mutex_new ();
queue->waiting_add = FALSE;
@ -504,7 +509,8 @@ gst_queue_finalize (GObject * object)
g_mutex_free (queue->qlock);
g_cond_free (queue->item_add);
g_cond_free (queue->item_del);
g_timer_destroy (queue->timer);
g_timer_destroy (queue->in_timer);
g_timer_destroy (queue->out_timer);
/* temp_file path cleanup */
if (queue->temp_location != NULL)
@ -703,8 +709,10 @@ reset_rate_timer (GstQueue * queue)
queue->bytes_out = 0;
queue->byte_in_rate = 0.0;
queue->byte_out_rate = 0.0;
queue->last_elapsed = 0.0;
queue->timer_started = FALSE;
queue->last_in_elapsed = 0.0;
queue->last_out_elapsed = 0.0;
queue->in_timer_started = FALSE;
queue->out_timer_started = FALSE;
}
/* the interval in seconds to recalculate the rate */
@ -717,55 +725,80 @@ reset_rate_timer (GstQueue * queue)
#define AVG_OUT(avg,val) ((avg) * 3.0 + (val)) / 4.0
static void
update_rates (GstQueue * queue)
update_in_rates (GstQueue * queue)
{
gdouble elapsed, period;
gdouble byte_in_rate;
gdouble byte_out_rate;
if (!queue->timer_started) {
queue->timer_started = TRUE;
g_timer_start (queue->timer);
if (!queue->in_timer_started) {
queue->in_timer_started = TRUE;
g_timer_start (queue->in_timer);
return;
}
elapsed = g_timer_elapsed (queue->timer, NULL);
elapsed = g_timer_elapsed (queue->in_timer, NULL);
/* recalc after each interval. */
if (queue->last_elapsed + RATE_INTERVAL < elapsed) {
period = elapsed - queue->last_elapsed;
if (queue->last_in_elapsed + RATE_INTERVAL < elapsed) {
period = elapsed - queue->last_in_elapsed;
GST_DEBUG_OBJECT (queue,
"rates: period %f, in %" G_GUINT64_FORMAT ", out %" G_GUINT64_FORMAT,
period, queue->bytes_in, queue->bytes_out);
"rates: period %f, in %" G_GUINT64_FORMAT, period, queue->bytes_in);
byte_in_rate = queue->bytes_in / period;
byte_out_rate = queue->bytes_out / period;
if (queue->byte_in_rate == 0.0)
queue->byte_in_rate = byte_in_rate;
else
queue->byte_in_rate = AVG_IN (queue->byte_in_rate, byte_in_rate);
/* reset the values to calculate rate over the next interval */
queue->last_in_elapsed = elapsed;
queue->bytes_in = 0;
}
if (queue->byte_in_rate > 0.0) {
queue->cur_level.rate_time =
queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
}
GST_DEBUG_OBJECT (queue, "rates: in %f, time %" GST_TIME_FORMAT,
queue->byte_in_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
}
static void
update_out_rates (GstQueue * queue)
{
gdouble elapsed, period;
gdouble byte_out_rate;
if (!queue->out_timer_started) {
queue->out_timer_started = TRUE;
g_timer_start (queue->out_timer);
return;
}
elapsed = g_timer_elapsed (queue->out_timer, NULL);
/* recalc after each interval. */
if (queue->last_out_elapsed + RATE_INTERVAL < elapsed) {
period = elapsed - queue->last_out_elapsed;
GST_DEBUG_OBJECT (queue,
"rates: period %f, out %" G_GUINT64_FORMAT, period, queue->bytes_out);
byte_out_rate = queue->bytes_out / period;
if (queue->byte_out_rate == 0.0)
queue->byte_out_rate = byte_out_rate;
else
queue->byte_out_rate = AVG_OUT (queue->byte_out_rate, byte_out_rate);
/* reset the values to calculate rate over the next interval */
queue->last_elapsed = elapsed;
queue->bytes_in = 0;
queue->last_out_elapsed = elapsed;
queue->bytes_out = 0;
}
if (queue->byte_in_rate > 0.0) {
queue->cur_level.rate_time =
queue->cur_level.bytes / queue->byte_in_rate * GST_SECOND;
}
GST_DEBUG_OBJECT (queue, "rates: in %f, out %f, time %" GST_TIME_FORMAT,
queue->byte_in_rate, queue->byte_out_rate,
GST_TIME_ARGS (queue->cur_level.rate_time));
GST_DEBUG_OBJECT (queue, "rates: out %f, time %" GST_TIME_FORMAT,
queue->byte_out_rate, GST_TIME_ARGS (queue->cur_level.rate_time));
}
static void
@ -1006,7 +1039,7 @@ gst_queue_locked_enqueue (GstQueue * queue, gpointer item)
/* apply new buffer to segment stats */
apply_buffer (queue, buffer, &queue->sink_segment);
/* update the byterate stats */
update_rates (queue);
update_in_rates (queue);
if (QUEUE_IS_USING_TEMP_FILE (queue)) {
gst_queue_write_buffer_to_file (queue, buffer);
@ -1102,7 +1135,7 @@ gst_queue_locked_dequeue (GstQueue * queue)
queue->bytes_out += size;
apply_buffer (queue, buffer, &queue->src_segment);
/* update the byterate stats */
update_rates (queue);
update_out_rates (queue);
/* update the buffering */
update_buffering (queue);
@ -1291,22 +1324,25 @@ gst_queue_chain (GstPad * pad, GstBuffer * buffer)
/* We make space available if we're "full" according to whatever
* the user defined as "full". */
while (gst_queue_is_filled (queue)) {
if (gst_queue_is_filled (queue)) {
gboolean started;
/* pause the timer while we wait. The fact that we are waiting does not mean
* the byterate on the input pad is lower */
if ((started = queue->timer_started))
g_timer_stop (queue->timer);
if ((started = queue->in_timer_started))
g_timer_stop (queue->in_timer);
GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
"queue is full, waiting for free space");
/* Wait for space to be available, we could be unlocked because of a flush. */
GST_QUEUE_WAIT_DEL_CHECK (queue, out_flushing);
do {
/* Wait for space to be available, we could be unlocked because of a flush. */
GST_QUEUE_WAIT_DEL_CHECK (queue, out_flushing);
}
while (gst_queue_is_filled (queue));
/* and continue if we were running before */
if (started)
g_timer_continue (queue->timer);
g_timer_continue (queue->in_timer);
}
/* put buffer in queue now */
@ -1458,9 +1494,25 @@ gst_queue_loop (GstPad * pad)
/* have to lock for thread-safety */
GST_QUEUE_MUTEX_LOCK_CHECK (queue, out_flushing);
while (gst_queue_is_empty (queue)) {
/* we recheck, we could be unlocked because of a flush. */
GST_QUEUE_WAIT_ADD_CHECK (queue, out_flushing);
if (gst_queue_is_empty (queue)) {
gboolean started;
/* pause the timer while we wait. The fact that we are waiting does not mean
* the byterate on the output pad is lower */
if ((started = queue->out_timer_started))
g_timer_stop (queue->out_timer);
GST_CAT_DEBUG_OBJECT (queue_dataflow, queue,
"queue is empty, waiting for new data");
do {
/* Wait for data to be available, we could be unlocked because of a flush. */
GST_QUEUE_WAIT_ADD_CHECK (queue, out_flushing);
}
while (gst_queue_is_empty (queue));
/* and continue if we were running before */
if (started)
g_timer_continue (queue->out_timer);
}
ret = gst_queue_push_one (queue);
queue->srcresult = ret;