Steve Lhomme pushed to branch master at VideoLAN / VLC
Commits:
a998d8b6 by Felix Paul Kühne at 2026-06-19T04:30:41+00:00
demux/mp4: fix display of slides included in m4b media
Apple m4b audiobooks reference both a text chapter track and a
video slide track from the audio track's tref/chap. Flagging both
as USEAS_CHAPTERS hid the slides, since MP4_isMetadata() then
prevented an ES from being created.
Skip USEAS_CHAPTERS for a chap-referenced video track, so the
slide track stays a regular video ES.
Fix #7791
- - - - -
1 changed file:
- modules/demux/mp4/mp4.c
Changes:
=====================================
modules/demux/mp4/mp4.c
=====================================
@@ -1304,7 +1304,18 @@ static int Open( vlc_object_t * p_this )
{
msg_Dbg( p_demux, "track 0x%x refs track 0x%x for %4.4s",
i,
refdata->i_track_ID[j], (const char *)
&p_refbox->i_type );
- reftk->i_use_flags |= MP4_reftypeToFlag( p_refbox->i_type
);
+ int i_flag = MP4_reftypeToFlag( p_refbox->i_type );
+ /* chap may reference a video track holding slide artwork;
such a track is not a chapter source */
+ if( i_flag == USEAS_CHAPTERS )
+ {
+ const MP4_Box_t *p_hdlr = MP4_BoxGet( reftk->p_track,
"mdia/hdlr" );
+ if( p_hdlr && BOXDATA(p_hdlr) &&
+ BOXDATA(p_hdlr)->i_handler_type == ATOM_vide )
+ {
+ i_flag = USEAS_NONE;
+ }
+ }
+ reftk->i_use_flags |= i_flag;
}
}
}
View it on GitLab:
https://code.videolan.org/videolan/vlc/-/commit/a998d8b6301572c08182f36ac33aa19fb75e84b6
--
View it on GitLab:
https://code.videolan.org/videolan/vlc/-/commit/a998d8b6301572c08182f36ac33aa19fb75e84b6
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