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textoverlay: Check if text timestamp/duration is valid before clipping

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This commit is contained in:
Sebastian Dröge 2009-11-06 09:05:09 +01:00
parent 34e6718da9
commit 8692174b50
1 changed files with 17 additions and 6 deletions
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23
ext/pango/gsttextoverlay.c
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@ -1914,14 +1914,25 @@ gst_text_overlay_text_chain (GstPad * pad, GstBuffer * buffer)
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer) +
GST_BUFFER_DURATION (buffer)));
in_seg = gst_segment_clip (overlay->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (buffer),
GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer),
&clip_start, &clip_stop);
if (G_LIKELY (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))) {
GstClockTime stop;
if (G_LIKELY (GST_BUFFER_DURATION_IS_VALID (buffer)))
stop = GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer);
else
stop = GST_CLOCK_TIME_NONE;
in_seg = gst_segment_clip (overlay->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (buffer), stop, &clip_start, &clip_stop);
} else {
in_seg = TRUE;
}
if (in_seg) {
GST_BUFFER_TIMESTAMP (buffer) = clip_start;
GST_BUFFER_DURATION (buffer) = clip_stop - clip_start;
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
GST_BUFFER_TIMESTAMP (buffer) = clip_start;
else if (GST_BUFFER_DURATION_IS_VALID (buffer))
GST_BUFFER_DURATION (buffer) = clip_stop - clip_start;
/* Wait for the previous buffer to go away */
while (overlay->text_buffer != NULL) {