+ // update stream durations
+ if (mkv->stream_durations) {
+ int i;
+ for (i = 0; i < s->nb_streams; ++i) {
+ AVStream *st = s->streams[i];
+ double duration_sec = mkv->stream_durations[i] * av_q2d(st->time_base);
+ char duration_string[20] = "";
+
+ av_log(s, AV_LOG_DEBUG, "stream %d end duration = %" PRIu64 "\n", i,
+ mkv->stream_durations[i]);
+
+ if (!mkv->is_live && mkv->stream_duration_offsets[i] > 0) {
+ avio_seek(pb, mkv->stream_duration_offsets[i], SEEK_SET);
+
+ snprintf(duration_string, 20, "%02d:%02d:%012.9f",
+ (int) duration_sec / 3600, ((int) duration_sec / 60) % 60,
+ fmod(duration_sec, 60));
+
+ put_ebml_binary(pb, MATROSKA_ID_TAGSTRING, duration_string, 20);
+ }
+ }
+ }
+