qtdemux: Only ever update segment.position in the right directioninstant-rate-change

Otherwise non-flushing seeks or seeks with start_type=NONE will behave
wrong by jumping to the wrong position.

1 files changed, 2 insertions, 2 deletions

diff --git a/gst/isomp4/qtdemux.c b/gst/isomp4/qtdemux.c
index d1791b6d6..188f0058d 100644
--- a/gst/isomp4/qtdemux.c
+++ b/gst/isomp4/qtdemux.c
@@ -4637,7 +4637,7 @@ gst_qtdemux_seek_to_previous_keyframe (GstQTDemux * qtdemux)
       k_index, GST_TIME_ARGS (k_pos));
 
   /* Set last_stop with the keyframe timestamp we pushed of that stream */
-  qtdemux->segment.position = last_stop;
+  qtdemux->segment.position = MIN (qtdemux->segment.position, last_stop);
   GST_DEBUG_OBJECT (qtdemux, "last_stop now is %" GST_TIME_FORMAT,
       GST_TIME_ARGS (last_stop));
 
@@ -5499,7 +5499,7 @@ gst_qtdemux_decorate_and_push_buffer (GstQTDemux * qtdemux,
 
   /* position reporting */
   if (qtdemux->segment.rate >= 0) {
-    qtdemux->segment.position = position;
+    qtdemux->segment.position = MAX (qtdemux->segment.position, position);
     gst_qtdemux_sync_streams (qtdemux);
   }