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dec_sub: add hack to display last MicroDVD subtitle event
The old subreader.c infrastructure handled this in a similar way.
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@ -411,6 +411,17 @@ bool sub_read_all_packets(struct dec_sub *sub, struct sh_sub *sh)
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if (!opts->suboverlap_enabled)
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fix_overlaps_and_gaps(subs);
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if (sh->gsh->codec && strcmp(sh->gsh->codec, "microdvd") == 0) {
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// The last subtitle event in MicroDVD subs can have duration unset,
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// which means show the subtitle until end of video.
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// See FFmpeg FATE MicroDVD_capability_tester.sub
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if (subs->num_packets) {
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struct demux_packet *last = subs->packets[subs->num_packets - 1];
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if (last->duration <= 0)
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last->duration = 10; // arbitrary
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}
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}
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add_sub_list(sub, preprocess, subs);
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talloc_free(subs);
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