Commit 0e74bfe2 authored by Wim Taymans's avatar Wim Taymans
Browse files

segment: add gst_segment_set_running_time

Added new method for closing the segment to a specific running time.

API: GstSegment::gst_segment_set_running_time()
parent fef7c3f2
......@@ -1985,6 +1985,7 @@ gst_segment_set_seek
gst_segment_to_running_time
gst_segment_to_stream_time
gst_segment_to_position
gst_segment_set_running_time
<SUBSECTION Standard>
GST_TYPE_SEGMENT
gst_segment_get_type
......
......@@ -771,7 +771,8 @@ gst_segment_clip (GstSegment * segment, GstFormat format, gint64 start,
* Convert @running_time into a position in the segment so that
* gst_segment_to_running_time() with that position returns @running_time.
*
* Returns: the position in the segment for @running_time.
* Returns: the position in the segment for @running_time. This function returns
* -1 when @running_time is -1 or when it is not inside @segment.
*
* Since: 0.10.24
*/
......@@ -831,3 +832,58 @@ gst_segment_to_position (GstSegment * segment, GstFormat format,
}
return result;
}
/**
* gst_segment_set_running_time:
* @segment: a #GstSegment structure.
* @format: the format of the segment.
* @running_time: the running_time in the segment
*
* Adjust the start/stop and accum values of @segment such that the next valid
* buffer will be one with @running_time.
*
* Returns: %TRUE if the segment could be updated successfully. If %FALSE is
* returned, @running_time is -1 or not in @segment.
*
* Since: 0.10.24
*/
gboolean
gst_segment_set_running_time (GstSegment * segment, GstFormat format,
gint64 running_time)
{
gint64 position;
gint64 start, stop, last_stop;
/* start by bringing the running_time into the segment position */
position = gst_segment_to_position (segment, format, running_time);
/* we must have a valid position now */
if (G_UNLIKELY (position == -1))
return FALSE;
start = segment->start;
stop = segment->stop;
last_stop = segment->last_stop;
if (G_LIKELY (segment->rate > 0.0)) {
/* update the start/last_stop and time values */
start = position;
if (last_stop < start)
last_stop = start;
} else {
/* reverse, update stop */
stop = position;
/* if we were past the position, go back */
if (last_stop > stop)
last_stop = stop;
}
/* and accumulated time is exactly the running time */
segment->time = gst_segment_to_stream_time (segment, format, start);
segment->start = start;
segment->stop = stop;
segment->last_stop = last_stop;
segment->accum = running_time;
return TRUE;
}
......@@ -101,6 +101,9 @@ gint64 gst_segment_to_position (GstSegment *segment, GstFormat for
gboolean gst_segment_clip (GstSegment *segment, GstFormat format, gint64 start,
gint64 stop, gint64 *clip_start, gint64 *clip_stop);
gboolean gst_segment_set_running_time (GstSegment *segment, GstFormat format, gint64 running_time);
G_END_DECLS
#endif /* __GST_SEGMENT_H__ */
/* GStreamer
* Copyright (C) 2005 Jan Schmidt <thaytan@mad.scientist.com>
* 2009 Wim Taymans <wim.taymans@gmail.com>
*
* gstsegment.c: Unit test for segments
*
......
......@@ -835,6 +835,7 @@ EXPORTS
gst_segment_set_last_stop
gst_segment_set_newsegment
gst_segment_set_newsegment_full
gst_segment_set_running_time
gst_segment_set_seek
gst_segment_to_position
gst_segment_to_running_time
......
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