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gst/videorate/gstvideorate.*: React (more) to NEWSEGMENT

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Original commit message from CVS:
Patch by: Mark Nauwelaerts <manauw at skynet be>
* gst/videorate/gstvideorate.c: (gst_video_rate_reset),
(gst_video_rate_flush_prev), (gst_video_rate_event),
(gst_video_rate_chain):
* gst/videorate/gstvideorate.h:
React (more) to NEWSEGMENT
Small adjustment in timestamp calculation to prevent mismatches
Fixes #435633.
This commit is contained in:
Mark Nauwelaerts 2008-05-28 14:49:24 +00:00 committed by Wim Taymans
parent b82c4cee0e
commit 17b17a566f
4 changed files with 51 additions and 3 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2008-05-28 Wim Taymans <wim.taymans@collabora.co.uk>
Patch by: Mark Nauwelaerts <manauw at skynet be>
* gst/videorate/gstvideorate.c: (gst_video_rate_reset),
(gst_video_rate_flush_prev), (gst_video_rate_event),
(gst_video_rate_chain):
* gst/videorate/gstvideorate.h:
React (more) to NEWSEGMENT
Small adjustment in timestamp calculation to prevent mismatches
Fixes #435633.
2008-05-28 Tim-Philipp Müller <tim.muller at collabora co uk>
* tests/examples/seek/seek.c: (make_parselaunch_pipeline):

2
common

@ -1 +1 @@
Subproject commit 032f2d973bd5c9a9b457cb5fc72d13dafe85c01e
Subproject commit 130fa8f739ff09aedb520c33239f53d06cfe9bd5

39
gst/videorate/gstvideorate.c
View file

@ -364,6 +364,7 @@ gst_video_rate_reset (GstVideoRate * videorate)
videorate->in = 0;
videorate->out = 0;
videorate->segment_out = 0;
videorate->drop = 0;
videorate->dup = 0;
videorate->next_ts = GST_CLOCK_TIME_NONE;
@ -423,10 +424,11 @@ gst_video_rate_flush_prev (GstVideoRate * videorate)
push_ts = videorate->next_ts;
videorate->out++;
videorate->segment_out++;
if (videorate->to_rate_numerator) {
/* interpolate next expected timestamp in the segment */
videorate->next_ts = videorate->segment.accum + videorate->segment.start +
gst_util_uint64_scale (videorate->out,
gst_util_uint64_scale (videorate->segment_out,
videorate->to_rate_denominator * GST_SECOND,
videorate->to_rate_numerator);
GST_BUFFER_DURATION (outbuf) = videorate->next_ts - push_ts;
@ -464,6 +466,7 @@ gst_video_rate_swap_prev (GstVideoRate * videorate, GstBuffer * buffer,
videorate->prev_ts = time;
}
#define MAGIC_LIMIT 25
static gboolean
gst_video_rate_event (GstPad * pad, GstEvent * event)
{
@ -488,6 +491,38 @@ gst_video_rate_event (GstPad * pad, GstEvent * event)
GST_DEBUG_OBJECT (videorate, "handle NEWSEGMENT");
/* close up the previous segment, if appropriate */
if (!update && videorate->prevbuf) {
gint count = 0;
GstFlowReturn res;
res = GST_FLOW_OK;
/* fill up to the end of current segment,
* or only send out the stored buffer if there is no specific stop.
* regardless, prevent going loopy in strange cases */
while (res == GST_FLOW_OK && count <= MAGIC_LIMIT &&
((GST_CLOCK_TIME_IS_VALID (videorate->segment.stop) &&
videorate->next_ts - videorate->segment.accum
< videorate->segment.stop)
|| count < 1)) {
gst_video_rate_flush_prev (videorate);
count++;
}
if (count > 1) {
videorate->dup += count - 1;
if (!videorate->silent)
g_object_notify (G_OBJECT (videorate), "duplicate");
} else if (count == 0) {
videorate->drop++;
if (!videorate->silent)
g_object_notify (G_OBJECT (videorate), "drop");
}
/* clean up for the new one; _chain will resume from the new start */
videorate->segment_out = 0;
gst_video_rate_swap_prev (videorate, NULL, 0);
videorate->next_ts = GST_CLOCK_TIME_NONE;
}
/* We just want to update the accumulated stream_time */
gst_segment_set_newsegment_full (&videorate->segment, update, rate, arate,
format, start, stop, time);
@ -617,7 +652,7 @@ gst_video_rate_chain (GstPad * pad, GstBuffer * buffer)
if (!GST_CLOCK_TIME_IS_VALID (videorate->next_ts)) {
/* new buffer, we expect to output a buffer that matches the first
* timestamp in the segment */
videorate->next_ts = videorate->segment.start;
videorate->next_ts = videorate->segment.start + videorate->segment.accum;
}
} else {
GstClockTime prevtime;

1
gst/videorate/gstvideorate.h
View file

@ -55,6 +55,7 @@ struct _GstVideoRate
guint64 next_ts; /* Timestamp of next buffer to output */
GstBuffer *prevbuf;
guint64 prev_ts; /* Previous buffer timestamp */
guint64 segment_out; /* in-segment counting */
/* segment handling */
GstSegment segment;