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matroskademux: do not consider duration of non-finalized file

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... to avoid it clamping requested seek position.

Non-finalized file case, determined by whether
_parse_blockgroup_or_simpleblock ever updates the segment duration.

Fixes #652195.
This commit is contained in:
Branko Subasic 2011-12-21 17:43:10 +01:00 committed by Mark Nauwelaerts
parent 628ae5c1a1
commit a7d6690f92
2 changed files with 21 additions and 0 deletions
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18
gst/matroska/matroska-demux.c
View File

@ -480,6 +480,8 @@ gst_matroska_demux_reset (GstElement * element)
gst_buffer_unref (demux->common.cached_buffer); gst_buffer_unref (demux->common.cached_buffer);
demux->common.cached_buffer = NULL; demux->common.cached_buffer = NULL;
} }
demux->invalid_duration = FALSE;
} }
static GstBuffer * static GstBuffer *
@ -1928,6 +1930,16 @@ gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux,
* segment when we close the current segment. */ * segment when we close the current segment. */
memcpy (&seeksegment, &demux->common.segment, sizeof (GstSegment)); memcpy (&seeksegment, &demux->common.segment, sizeof (GstSegment));
/* pull mode without index means that the actual duration is not known,
* we might be playing a file that's still being recorded
* so, invalidate our current duration, which is only a moving target,
* and should not be used to clamp anything */
if (!demux->streaming && !demux->common.index &&
demux->invalid_duration) {
gst_segment_set_duration (&seeksegment, GST_FORMAT_TIME,
GST_CLOCK_TIME_NONE);
}
if (event) { if (event) {
GST_DEBUG_OBJECT (demux, "configuring seek"); GST_DEBUG_OBJECT (demux, "configuring seek");
gst_segment_set_seek (&seeksegment, rate, format, flags, gst_segment_set_seek (&seeksegment, rate, format, flags,
@ -1942,6 +1954,11 @@ gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux,
} }
} }
/* restore segment duration (if any effect),
* would be determined again when parsing, but anyway ... */
gst_segment_set_duration (&seeksegment, GST_FORMAT_TIME,
demux->common.segment.duration);
flush = ! !(flags & GST_SEEK_FLAG_FLUSH); flush = ! !(flags & GST_SEEK_FLAG_FLUSH);
keyunit = ! !(flags & GST_SEEK_FLAG_KEY_UNIT); keyunit = ! !(flags & GST_SEEK_FLAG_KEY_UNIT);
@ -3501,6 +3518,7 @@ gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux,
gst_element_post_message (GST_ELEMENT_CAST (demux), gst_element_post_message (GST_ELEMENT_CAST (demux),
gst_message_new_duration (GST_OBJECT_CAST (demux), gst_message_new_duration (GST_OBJECT_CAST (demux),
GST_FORMAT_TIME, GST_CLOCK_TIME_NONE)); GST_FORMAT_TIME, GST_CLOCK_TIME_NONE));
demux->invalid_duration = TRUE;
} else { } else {
GST_OBJECT_UNLOCK (demux); GST_OBJECT_UNLOCK (demux);
} }

3
gst/matroska/matroska-demux.h
View File

@ -95,6 +95,9 @@ typedef struct _GstMatroskaDemux {
/* gap handling */ /* gap handling */
guint64 max_gap_time; guint64 max_gap_time;
/* for non-finalized files, with invalid segment duration */
gboolean invalid_duration;
} GstMatroskaDemux; } GstMatroskaDemux;
typedef struct _GstMatroskaDemuxClass { typedef struct _GstMatroskaDemuxClass {