[vlc-commits] demux: mkv: fix seek

[Zhao Zhili]

vlc | branch: master | Zhao Zhili <quinkblack at foxmail.com> | Fri Jun 29 16:37:18 2018 +0200| [7bbfee83ea31ab0d46bdd6f8a3d9dff7f5c227ef] | committer: Steve Lhomme

demux: mkv: fix seek

This fixes a regression from 6b10c2e6. Seek failed due to empty
_tracks_seekpoints[video_track].

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=7bbfee83ea31ab0d46bdd6f8a3d9dff7f5c227ef
---

 modules/demux/mkv/matroska_segment.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/modules/demux/mkv/matroska_segment.cpp b/modules/demux/mkv/matroska_segment.cpp
index 0a7a588037..50b7c743d0 100644
--- a/modules/demux/mkv/matroska_segment.cpp
+++ b/modules/demux/mkv/matroska_segment.cpp
@@ -635,6 +635,16 @@ bool matroska_segment_c::Preload( )
 
 
             cluster = kc_ptr;
+
+            // add first cluster as trusted seekpoint for all tracks
+            for( tracks_map_t::const_iterator it = tracks.begin();
+                 it != tracks.end(); ++it )
+            {
+                _seeker.add_seekpoint( it->first,
+                SegmentSeeker::Seekpoint( cluster->GetElementPosition(), -1,
+                                          SegmentSeeker::Seekpoint::TrustLevel::QUESTIONABLE ) );
+            }
+
             /* stop pre-parsing the stream */
             break;
         }