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avformat/dvdvideodec: fix menu PGC number off-by-one in state

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Signed-off-by: Marth64 <marth64@proxyid.net>
(cherry picked from commit 94346edbbf)
This commit is contained in:
Marth64 2024-10-07 18:04:50 -05:00
parent 15684239ca
commit aebce8b1b8
1 changed files with 1 additions and 1 deletions
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2
libavformat/dvdvideodec.c
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@ -344,7 +344,7 @@ static int dvdvideo_menu_open(AVFormatContext *s, DVDVideoPlaybackState *state)
}
/* make sure the PGC is valid */
state->pgcn = c->opt_pgc - 1;
state->pgcn = c->opt_pgc;
state->pgc = pgci_ut->lu[c->opt_menu_lu - 1].pgcit->pgci_srp[c->opt_pgc - 1].pgc;
if (!state->pgc || !state->pgc->program_map || !state->pgc->cell_playback) {
av_log(s, AV_LOG_ERROR, "Invalid PGC structure for menu [LU %d, PGC %d]\n",