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matroskaparse: calculate segment duration after parsing all the IDs

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Since the segment duration is given in terms of the
GST_MATROSKA_ID_TIMECODESCALE we should only convert it into
nanoseconds when we are sure that any scale specified in the file has
been read.

https://bugzilla.gnome.org/show_bug.cgi?id=650258
This commit is contained in:
Debarshi Ray 2011-05-15 23:25:15 +03:00 committed by Sebastian Dröge
parent 8b910885ec
commit 4df5d896f0
1 changed files with 14 additions and 12 deletions
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26
gst/matroska/matroska-parse.c
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@ -2808,6 +2808,7 @@ static GstFlowReturn
gst_matroska_parse_parse_info (GstMatroskaParse * parse, GstEbmlRead * ebml)
{
GstFlowReturn ret = GST_FLOW_OK;
gdouble dur_f = -1.0;
guint32 id;
DEBUG_ELEMENT_START (parse, ebml, "SegmentInfo");
@ -2836,23 +2837,15 @@ gst_matroska_parse_parse_info (GstMatroskaParse * parse, GstEbmlRead * ebml)
}
case GST_MATROSKA_ID_DURATION:{
gdouble num;
GstClockTime dur;
if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
if ((ret = gst_ebml_read_float (ebml, &id, &dur_f)) != GST_FLOW_OK)
break;
if (num <= 0.0) {
GST_WARNING_OBJECT (parse, "Invalid duration %lf", num);
if (dur_f <= 0.0) {
GST_WARNING_OBJECT (parse, "Invalid duration %lf", dur_f);
break;
}
GST_DEBUG_OBJECT (parse, "Duration: %lf", num);
dur = gst_gdouble_to_guint64 (num *
gst_guint64_to_gdouble (parse->time_scale));
if (GST_CLOCK_TIME_IS_VALID (dur) && dur <= G_MAXINT64)
gst_segment_set_duration (&parse->segment, GST_FORMAT_TIME, dur);
GST_DEBUG_OBJECT (parse, "Duration: %lf", dur_f);
break;
}
@ -2923,6 +2916,15 @@ gst_matroska_parse_parse_info (GstMatroskaParse * parse, GstEbmlRead * ebml)
}
}
if (dur_f > 0.0) {
GstClockTime dur_u;
dur_u = gst_gdouble_to_guint64 (dur_f *
gst_guint64_to_gdouble (parse->time_scale));
if (GST_CLOCK_TIME_IS_VALID (dur_u) && dur_u <= G_MAXINT64)
gst_segment_set_duration (&parse->segment, GST_FORMAT_TIME, dur_u);
}
DEBUG_ELEMENT_STOP (parse, ebml, "SegmentInfo", ret);
parse->segmentinfo_parsed = TRUE;