vlc | branch: master | Steve Lhomme <rob...@ycbcr.xyz> | Wed Feb 14 14:06:04 
2018 +0100| [f75afcab241d3dc2ca5860460820ff858bdb558d] | committer: Steve Lhomme

demux:mkv: use CurrentEdition() where possible and check for NULL returns

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=f75afcab241d3dc2ca5860460820ff858bdb558d
---

 modules/demux/mkv/demux.cpp           |  2 +-
 modules/demux/mkv/virtual_segment.cpp | 12 +++++++-----
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/modules/demux/mkv/demux.cpp b/modules/demux/mkv/demux.cpp
index c8584b1b71..36c4d35889 100644
--- a/modules/demux/mkv/demux.cpp
+++ b/modules/demux/mkv/demux.cpp
@@ -617,7 +617,7 @@ bool demux_sys_t::PreloadLinked()
         return false;
 
     /* Set current chapter */
-    p_current_vsegment->p_current_vchapter = 
p_current_vsegment->veditions[p_current_vsegment->i_current_edition]->getChapterbyTimecode(0);
+    p_current_vsegment->p_current_vchapter = 
p_current_vsegment->CurrentEdition()->getChapterbyTimecode(0);
     msg_Dbg( &demuxer, "NEW START CHAPTER uid=%" PRId64, 
p_current_vsegment->p_current_vchapter && 
p_current_vsegment->p_current_vchapter->p_chapter ?
                  p_current_vsegment->p_current_vchapter->p_chapter->i_uid : 0 
);
 
diff --git a/modules/demux/mkv/virtual_segment.cpp 
b/modules/demux/mkv/virtual_segment.cpp
index b5a9f5a033..d7c9836d4a 100644
--- a/modules/demux/mkv/virtual_segment.cpp
+++ b/modules/demux/mkv/virtual_segment.cpp
@@ -420,7 +420,7 @@ bool virtual_segment_c::UpdateCurrentToChapter( demux_t & 
demux )
 {
     demux_sys_t & sys = *(demux_sys_t *)demux.p_sys;
     virtual_chapter_c *p_cur_vchapter = NULL;
-    virtual_edition_c *p_cur_vedition = veditions[ i_current_edition ];
+    virtual_edition_c *p_cur_vedition = CurrentEdition();
 
     bool b_has_seeked = false;
 
@@ -435,7 +435,7 @@ bool virtual_segment_c::UpdateCurrentToChapter( demux_t & 
demux )
     {
         if ( p_current_vchapter != NULL && 
p_current_vchapter->ContainsTimestamp( sys.i_pts - VLC_TS_0 ))
             p_cur_vchapter = p_current_vchapter;
-        else
+        else if (p_cur_vedition != NULL)
             p_cur_vchapter = p_cur_vedition->getChapterbyTimecode( sys.i_pts - 
VLC_TS_0 );
     }
 
@@ -514,9 +514,9 @@ bool virtual_segment_c::Seek( demux_t & demuxer, mtime_t 
i_mk_date,
 
 
     /* find the actual time for an ordered edition */
-    if ( p_vchapter == NULL )
+    if ( p_vchapter == NULL && CurrentEdition() )
         /* 1st, we need to know in which chapter we are */
-        p_vchapter = veditions[ i_current_edition ]->getChapterbyTimecode( 
i_mk_date );
+        p_vchapter = CurrentEdition()->getChapterbyTimecode( i_mk_date );
 
     if ( p_vchapter != NULL )
     {
@@ -568,7 +568,9 @@ virtual_chapter_c * virtual_chapter_c::FindChapter( int64_t 
i_find_uid )
 
 virtual_chapter_c * virtual_segment_c::FindChapter( int64_t i_find_uid )
 {
-    virtual_edition_c * p_edition = veditions[i_current_edition];
+    virtual_edition_c * p_edition = CurrentEdition();
+    if (unlikely(p_edition == NULL))
+        return NULL;
 
     for( size_t i = 0; i < p_edition->vchapters.size(); i++ )
     {

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