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collectpads: handle GAP event

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This commit is contained in:
Mark Nauwelaerts 2012-09-05 15:37:13 +02:00
parent 42e85953c8
commit 9439e73eec
1 changed files with 54 additions and 18 deletions
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72
libs/gst/base/gstcollectpads.c
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@ -1370,6 +1370,7 @@ gst_collect_pads_recalculate_waiting (GstCollectPads * pads)
for (collected = pads->data; collected; collected = g_slist_next (collected)) {
GstCollectData *data = (GstCollectData *) collected->data;
int cmp_res;
GstClockTime comp_time;
/* check if pad has a segment */
if (data->segment.format == GST_FORMAT_UNDEFINED) {
@ -1386,7 +1387,8 @@ gst_collect_pads_recalculate_waiting (GstCollectPads * pads)
}
/* check if the waiting state should be changed */
cmp_res = pads->priv->compare_func (pads, data, data->segment.start,
comp_time = MAX (data->segment.start, data->segment.position);
cmp_res = pads->priv->compare_func (pads, data, comp_time,
pads->priv->earliest_data, pads->priv->earliest_time,
pads->priv->compare_user_data);
if (cmp_res > 0)
@ -1561,6 +1563,35 @@ gst_collect_pads_default_compare_func (GstCollectPads * pads,
return 0;
}
/* called with STREAM_LOCK */
static void
gst_collect_pads_handle_position_update (GstCollectPads * pads,
GstCollectData * data, GstClockTime new_pos)
{
gint cmp_res;
/* If oldest time is not known, or current pad got newsegment;
* recalculate the state */
if (!pads->priv->earliest_data || pads->priv->earliest_data == data) {
gst_collect_pads_recalculate_full (pads);
goto exit;
}
/* Check if the waiting state of the pad should change. */
cmp_res =
pads->priv->compare_func (pads, data, new_pos,
pads->priv->earliest_data, pads->priv->earliest_time,
pads->priv->compare_user_data);
if (cmp_res > 0)
/* Stop waiting */
gst_collect_pads_set_waiting (pads, data, FALSE);
exit:
return;
}
/**
* gst_collect_pads_event_default:
* @pads: the collectspads to use
@ -1664,7 +1695,6 @@ gst_collect_pads_event_default (GstCollectPads * pads, GstCollectData * data,
case GST_EVENT_SEGMENT:
{
GstSegment seg;
gint cmp_res;
GST_COLLECT_PADS_STREAM_LOCK (pads);
@ -1672,6 +1702,9 @@ gst_collect_pads_event_default (GstCollectPads * pads, GstCollectData * data,
GST_DEBUG_OBJECT (data->pad, "got segment %" GST_SEGMENT_FORMAT, &seg);
/* sanitize to make sure; reasonably so at start */
seg.position = seg.start;
/* default collection can not handle other segment formats than time */
if (buffer_func && seg.format != GST_FORMAT_TIME) {
GST_WARNING_OBJECT (pads, "GstCollectPads default collecting "
@ -1686,22 +1719,7 @@ gst_collect_pads_event_default (GstCollectPads * pads, GstCollectData * data,
if (!buffer_func)
goto newsegment_done;
/* If oldest time is not known, or current pad got newsegment;
* recalculate the state */
if (!pads->priv->earliest_data || pads->priv->earliest_data == data) {
gst_collect_pads_recalculate_full (pads);
goto newsegment_done;
}
/* Check if the waiting state of the pad should change. */
cmp_res =
pads->priv->compare_func (pads, data, seg.start,
pads->priv->earliest_data, pads->priv->earliest_time,
pads->priv->compare_user_data);
if (cmp_res > 0)
/* Stop waiting */
gst_collect_pads_set_waiting (pads, data, FALSE);
gst_collect_pads_handle_position_update (pads, data, seg.start);
newsegment_done:
GST_COLLECT_PADS_STREAM_UNLOCK (pads);
@ -1709,6 +1727,24 @@ gst_collect_pads_event_default (GstCollectPads * pads, GstCollectData * data,
* accumulated and this is certainly not what we want. */
goto eat;
}
case GST_EVENT_GAP:
{
GstClockTime start, duration;
GST_COLLECT_PADS_STREAM_LOCK (pads);
gst_event_parse_gap (event, &start, &duration);
if (GST_CLOCK_TIME_IS_VALID (duration))
start += duration;
/* we do not expect another buffer until after gap,
* so that is our position now */
data->segment.position = start;
gst_collect_pads_handle_position_update (pads, data, start);
GST_COLLECT_PADS_STREAM_UNLOCK (pads);
goto eat;
}
case GST_EVENT_STREAM_START:
/* let the only the first one go through */
if (!pads->priv->stream_started) {