qtdemux: properly activate segment with rate != 1.0

Also use the qt rate to identify the position within a qt segment
to properly translate playback time to qt media time

https://bugzilla.gnome.org/show_bug.cgi?id=765669

diff --git a/gst/isomp4/qtdemux.c b/gst/isomp4/qtdemux.c
index 3c0d7d77da5a52989c1a70d40907289a2fece340..b70457864c18354f489edb43f62764a47c5ca50d 100644 (file)
--- a/gst/isomp4/qtdemux.c
+++ b/gst/isomp4/qtdemux.c
@@ -1272,7 +1272,7 @@ gst_qtdemux_adjust_seek (GstQTDemux * qtdemux, gint64 desired_time,
 
     /* get segment and time in the segment */
     seg = &str->segments[seg_idx];
-    seg_time = desired_time - seg->time;
+    seg_time = (desired_time - seg->time) * seg->rate;
 
     while (QTSEGMENT_IS_EMPTY (seg)) {
       seg_time = 0;
@@ -4400,7 +4400,7 @@ gst_qtdemux_stream_segment_get_boundaries (GstQTDemux * qtdemux,
   segment = &stream->segments[stream->segment_index];
 
   /* get time in this segment */
-  seg_time = offset - segment->time;
+  seg_time = (offset - segment->time) * segment->rate;
 
   GST_LOG_OBJECT (stream->pad, "seg_time %" GST_TIME_FORMAT,
       GST_TIME_ARGS (seg_time));