virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-15 14:13:16 +02:00
Code Issues Releases Activity

lavf/subtitles: seek a little more backward when necessary.

Browse Source 
If some previous subtitles are overlapping with the current time
we make sure they are raised so the renderer can display them too.
This commit is contained in:
Clément Bœsch
2012-11-30 07:00:59 +01:00
parent ff3624b1ad
commit ad5d72b123
1 changed files with 11 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
libavformat/subtitles.c
View File

@@ -103,6 +103,7 @@ int ff_subtitles_queue_seek(FFDemuxSubtitlesQueue *q, AVFormatContext *s, int st
} else {
int i, idx = -1;
int64_t min_ts_diff = INT64_MAX;
int64_t ts_selected;
if (stream_index == -1) {
AVRational time_base = s->streams[0]->time_base;
ts = av_rescale_q(ts, AV_TIME_BASE_Q, time_base);
@@ -124,6 +125,16 @@ int ff_subtitles_queue_seek(FFDemuxSubtitlesQueue *q, AVFormatContext *s, int st
}
if (idx < 0)
return AVERROR(ERANGE);
/* look back in the latest subtitles for overlapping subtitles */
ts_selected = q->subs[idx].pts;
for (i = idx - 1; i >= 0; i--) {
if (q->subs[i].duration <= 0)
continue;
if (q->subs[i].pts > ts_selected - q->subs[i].duration)
idx = i;
else
break;
}
q->current_sub_idx = idx;
}
return 0;