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libs/gst/base/gstbasesink.c: Separate QoS calculation.

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Original commit message from CVS:
* libs/gst/base/gstbasesink.c: (gst_base_sink_do_sync),
(gst_base_sink_do_qos):
Separate QoS calculation.
Only drop buffers when lateness is bigger than the
duration of the buffer.
This commit is contained in:
Wim Taymans 2006-03-14 11:18:07 +00:00
parent e9c4493586
commit 926ef9413a
2 changed files with 103 additions and 41 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2006-03-14 Wim Taymans <wim@fluendo.com>
* libs/gst/base/gstbasesink.c: (gst_base_sink_do_sync),
(gst_base_sink_do_qos):
Separate QoS calculation.
Only drop buffers when lateness is bigger than the
duration of the buffer.
2006-03-13 Wim Taymans <wim@fluendo.com>
* gst/gstpipeline.c: (gst_pipeline_set_property),

136
libs/gst/base/gstbasesink.c
View file

@ -213,6 +213,9 @@ static gboolean gst_base_sink_activate_push (GstPad * pad, gboolean active);
static gboolean gst_base_sink_activate_pull (GstPad * pad, gboolean active);
static gboolean gst_base_sink_event (GstPad * pad, GstEvent * event);
static gboolean gst_base_sink_do_qos (GstBaseSink * basesink,
GstMiniObject * obj, GstClockReturn status, GstClockTimeDiff jitter);
static void
gst_base_sink_base_init (gpointer g_class)
{
@ -880,7 +883,6 @@ gst_base_sink_do_sync (GstBaseSink * basesink, GstPad * pad,
GstClockTimeDiff jitter;
gboolean syncable;
GstClockReturn status = GST_CLOCK_OK;
GstClockTime timestamp;
/* get timing information for this object */
start = stop = -1;
@ -940,47 +942,9 @@ again:
goto again;
}
*late = FALSE;
/* perform QoS */
*late = gst_base_sink_do_qos (basesink, obj, status, jitter);
/* only do stats for buffers */
if (G_UNLIKELY (!GST_IS_BUFFER (obj)))
goto done;
/* did not sync on this object, we don't need to do stats */
if (start == -1)
goto done;
/* can't do stats if we don't have a timestamp */
if ((timestamp = GST_BUFFER_TIMESTAMP (obj)) == -1)
goto done;
/* FIXME, do stats here in jitter. This could be used to derive
* a trend, which should then result in an updated proportion. */
if (status == GST_CLOCK_EARLY) {
if (basesink->abidata.ABI.max_lateness != -1
&& jitter > basesink->abidata.ABI.max_lateness) {
GstEvent *event;
gdouble proportion;
GST_DEBUG_OBJECT (basesink, "late: jitter!! %" G_GINT64_FORMAT, jitter);
*late = TRUE;
/* generate QoS event, proportion is still silly. */
proportion = 0.0;
GST_CAT_DEBUG_OBJECT (GST_CAT_QOS, basesink,
"qos: proportion: %lf, diff %" G_GUINT64_FORMAT ", timestamp %"
GST_TIME_FORMAT, proportion, jitter, GST_TIME_ARGS (timestamp));
event = gst_event_new_qos (proportion, jitter, timestamp);
/* send upstream */
gst_pad_push_event (basesink->sinkpad, event);
}
}
done:
return GST_FLOW_OK;
/* ERRORS */
@ -1001,6 +965,96 @@ stopping:
}
}
/* perform QoS on the given object.
*
* If the object was scheduled later that max_lateness we generate
* a QoS message upstream.
*
* returns TRUE if the buffer was too late.
*/
static gboolean
gst_base_sink_do_qos (GstBaseSink * basesink, GstMiniObject * obj,
GstClockReturn status, GstClockTimeDiff jitter)
{
gboolean late;
GstClockTime timestamp, duration;
gint64 max_lateness;
/* only for buffers that are too late */
if (status != GST_CLOCK_EARLY)
goto in_time;
/* only do stats for buffers */
if (G_UNLIKELY (!GST_IS_BUFFER (obj)))
goto not_buffer;
/* can't do stats if we don't have a timestamp */
if (G_UNLIKELY ((timestamp = GST_BUFFER_TIMESTAMP (obj)) == -1))
goto no_timestamp;
/* if the jitter bigger than duration we are too late */
if (G_UNLIKELY ((duration = GST_BUFFER_DURATION (obj)) != -1))
late = jitter > duration;
else
late = FALSE;
/* copy for code clarity */
max_lateness = basesink->abidata.ABI.max_lateness;
/* check if we need to do qos */
if (max_lateness == -1 || jitter <= max_lateness)
goto no_qos;
/* FIXME, do stats here in jitter. This could be used to derive
* a trend, which should then result in an updated proportion. */
{
GstEvent *event;
gdouble proportion;
GST_DEBUG_OBJECT (basesink, "late: jitter!! %" G_GINT64_FORMAT, jitter);
/* generate QoS event, proportion is still silly. */
proportion = 0.0;
GST_CAT_DEBUG_OBJECT (GST_CAT_QOS, basesink,
"qos: proportion: %lf, diff %" G_GUINT64_FORMAT ", timestamp %"
GST_TIME_FORMAT, proportion, jitter, GST_TIME_ARGS (timestamp));
event = gst_event_new_qos (proportion, jitter, timestamp);
/* if no duration set, we assume lateness here as well. */
if (duration == -1)
late = TRUE;
/* send upstream */
gst_pad_push_event (basesink->sinkpad, event);
}
return late;
/* cases where no qos is needed */
in_time:
{
GST_DEBUG_OBJECT (basesink, "object was scheduled in time");
return FALSE;
}
not_buffer:
{
GST_DEBUG_OBJECT (basesink, "object is not a buffer");
return FALSE;
}
no_timestamp:
{
GST_DEBUG_OBJECT (basesink, "buffer has no timestamp");
return FALSE;
}
no_qos:
{
GST_DEBUG_OBJECT (basesink, "qos disabled");
return late;
}
}
/* with STREAM_LOCK, PREROLL_LOCK,
*
* Synchronize the object on the clock and then render it.