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videotestsrc: keep track of the correct running time after renegotiations

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Need to store the old running time and frame numbers when renegotiating and
start from 0 again when a new caps is set, preventing that framerate changes
cause timestamping issues.

For example, if a stream pushed 10 buffers on framerate=2/1, its
running time will be 5s. If a new framerate of 1/1 is set, it would
make the running time go to 10s as it would count those 10 buffers
as being sent on this new framerate.

Fixes camerbin unit test.

https://bugzilla.gnome.org/show_bug.cgi?id=682973
This commit is contained in:
Thiago Santos 2012-08-29 16:02:11 -03:00 committed by Tim-Philipp Müller
parent cec6d634b6
commit 386206e627
2 changed files with 27 additions and 3 deletions
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24
gst/videotestsrc/gstvideotestsrc.c
View file

@ -704,6 +704,12 @@ gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
videotestsrc->tmpline2 = g_malloc ((info.width + 8) * 4);
videotestsrc->tmpline_u16 = g_malloc ((info.width + 16) * 8);
videotestsrc->accum_rtime += videotestsrc->running_time;
videotestsrc->accum_frames += videotestsrc->n_frames;
videotestsrc->running_time = 0;
videotestsrc->n_frames = 0;
return TRUE;
/* ERRORS */
@ -783,6 +789,8 @@ gst_video_test_src_do_seek (GstBaseSrc * bsrc, GstSegment * segment)
} else {
src->n_frames = 0;
}
src->accum_frames = 0;
src->accum_rtime = 0;
if (src->info.fps_n) {
src->running_time = gst_util_uint64_scale (src->n_frames,
src->info.fps_d * GST_SECOND, src->info.fps_n);
@ -830,11 +838,19 @@ gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
gst_video_frame_unmap (&frame);
GST_BUFFER_DTS (buffer) = src->timestamp_offset + src->running_time;
GST_BUFFER_DTS (buffer) =
src->accum_rtime + src->timestamp_offset + src->running_time;
GST_BUFFER_PTS (buffer) = GST_BUFFER_DTS (buffer);
GST_BUFFER_OFFSET (buffer) = src->n_frames;
GST_DEBUG_OBJECT (src, "Timestamp: %" GST_TIME_FORMAT " = accumulated %"
GST_TIME_FORMAT " + offset: %"
GST_TIME_FORMAT " + running time: %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_PTS (buffer)), GST_TIME_ARGS (src->accum_rtime),
GST_TIME_ARGS (src->timestamp_offset), GST_TIME_ARGS (src->running_time));
GST_BUFFER_OFFSET (buffer) = src->accum_frames + src->n_frames;
src->n_frames++;
GST_BUFFER_OFFSET_END (buffer) = src->n_frames;
GST_BUFFER_OFFSET_END (buffer) = GST_BUFFER_OFFSET (buffer) + 1;
if (src->info.fps_n) {
next_time = gst_util_uint64_scale_int (src->n_frames * GST_SECOND,
src->info.fps_d, src->info.fps_n);
@ -874,6 +890,8 @@ gst_video_test_src_start (GstBaseSrc * basesrc)
src->running_time = 0;
src->n_frames = 0;
src->accum_frames = 0;
src->accum_rtime = 0;
return TRUE;
}

6
gst/videotestsrc/gstvideotestsrc.h
View file

@ -130,9 +130,15 @@ struct _GstVideoTestSrc {
/* private */
gint64 timestamp_offset; /* base offset */
/* running time and frames for current caps */
GstClockTime running_time; /* total running time */
gint64 n_frames; /* total frames sent */
/* previous caps running time and frames */
GstClockTime accum_rtime; /* accumulated running_time */
gint64 accum_frames; /* accumulated frames */
/* zoneplate */
gint k0;
gint kx;