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Merge remote-tracking branch 'cus/stable'

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* cus/stable:
  ffmpeg: ensure that -fix_sub_duration doesnt create subtitles with zero duration
  ffmpeg: free empty subtitles as well in transcode_subtitles
  ffmpeg: do not pass possibly undefined subtitles to sub2video_update

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-11-30 05:07:15 +01:00
commit bd9de4f594
1 changed files with 14 additions and 6 deletions
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20
ffmpeg.c
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@ -1807,25 +1807,32 @@ static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
}
if (ist->fix_sub_duration) {
int end = 1;
if (ist->prev_sub.got_output) {
int end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1000, AV_TIME_BASE);
end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
1000, AV_TIME_BASE);
if (end < ist->prev_sub.subtitle.end_display_time) {
av_log(ist->st->codec, AV_LOG_DEBUG,
"Subtitle duration reduced from %d to %d\n",
ist->prev_sub.subtitle.end_display_time, end);
"Subtitle duration reduced from %d to %d%s\n",
ist->prev_sub.subtitle.end_display_time, end,
end <= 0 ? ", dropping it" : "");
ist->prev_sub.subtitle.end_display_time = end;
}
}
FFSWAP(int, *got_output, ist->prev_sub.got_output);
FFSWAP(int, ret, ist->prev_sub.ret);
FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle);
if (end <= 0)
goto out;
}
if (!*got_output)
return ret;
sub2video_update(ist, &subtitle);
if (!*got_output || !subtitle.num_rects)
return ret;
if (!subtitle.num_rects)
goto out;
for (i = 0; i < nb_output_streams; i++) {
OutputStream *ost = output_streams[i];
@ -1836,6 +1843,7 @@ static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
}
out:
avsubtitle_free(&subtitle);
return ret;
}