[FFmpeg-cvslog] avformat/dvdvideodec: fix missing last chapter marker due to off-by-one

[Marth64]

ffmpeg | branch: master | Marth64 <marth64 at proxyid.net> | Tue Nov 26 20:09:04 2024 -0600| [a5a899bfcbe458bc9e4e73f883ed63cbaacbb451] | committer: Marth64

avformat/dvdvideodec: fix missing last chapter marker due to off-by-one

When using fast chapter marker calculation (default), the last
marker is inadverdently ignored due to an off-by-one.

Signed-off-by: Marth64 <marth64 at proxyid.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a5a899bfcbe458bc9e4e73f883ed63cbaacbb451
---

 libavformat/dvdvideodec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/dvdvideodec.c b/libavformat/dvdvideodec.c
index 4d11480dfd..9916351e86 100644
--- a/libavformat/dvdvideodec.c
+++ b/libavformat/dvdvideodec.c
@@ -874,7 +874,7 @@ static int dvdvideo_chapters_setup_simple(AVFormatContext *s)
     int64_t total_duration = 0;
 
     int chapter_start = c->opt_chapter_start;
-    int chapter_end = c->opt_chapter_end > 0 ? c->opt_chapter_end : c->play_state.pgc_nb_pg_est - 1;
+    int chapter_end = c->opt_chapter_end > 0 ? c->opt_chapter_end : c->play_state.pgc_nb_pg_est;
 
     /* dvdnav_describe_title_chapters() describes PGs rather than PTTs, so validate our range */
     if (c->play_state.pgc_nb_pg_est == 1            ||