RepoMirrors/mpv
1
0
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2025-05-02 08:09:50 +00:00
Code Issues Releases Wiki Activity

sd_ass: handle past subs with unknown duration on every decode

Browse Source 
Unknown duration subtitle handling must be executed on every decode
call, because we are actually adjusting the duration value of subtitles
that are decoded in the past. It should not only execute when the
newest packet has an unknown duration.
This commit is contained in:
VincentVerdynanta 2025-04-07 16:35:11 +00:00
parent b09e06a920
commit f5fd1c8cc9
1 changed files with 11 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
sub/sd_ass.c
View File

@ -476,17 +476,19 @@ static void decode(struct sd *sd, struct demux_packet *packet)
};
filter_and_add(sd, &pkt2);
}
if (sub_duration == UNKNOWN_DURATION) {
for (int n = track->n_events - 2; n >= 0; n--) {
if (track->events[n].Duration == UNKNOWN_DURATION * 1000) {
if (track->events[n].Start != track->events[n + 1].Start) {
track->events[n].Duration = track->events[n + 1].Start -
track->events[n].Start;
} else {
track->events[n].Duration = track->events[n + 1].Duration;
}
for (int n = track->n_events - 1; n >= 0; n--) {
if (track->events[track->n_events - 1].Start == track->events[n].Start)
continue;
if (track->events[n].Duration == UNKNOWN_DURATION * 1000) {
if (track->events[n].Start < track->events[n + 1].Start) {
track->events[n].Duration = track->events[n + 1].Start -
track->events[n].Start;
} else if (track->events[n].Start == track->events[n + 1].Start) {
track->events[n].Duration = track->events[n + 1].Duration;
}
}
if (n > 0 && track->events[n].Start != track->events[n - 1].Start)
break;
}
} else {
// Note that for this packet format, libass has an internal mechanism