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matroskadec: partly revert "demux relevant subtitle packets after a seek"

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This reverts parts of c16582579b. The hard
coded 30 seconds are a lot, and finishing the seek can takes several
seconds when the source is on a network share. Remove this code
entirely, because it does more bad than good.

(Commit message provided by committer, based on the original messages
by the patch author.)

Signed-off-by: Rainer Hochecker <fernetmenta@online.de>
Signed-off-by: wm4 <nfxjfg@googlemail.com>
This commit is contained in:
Rainer Hochecker 2016-11-26 08:27:44 +01:00 committed by wm4
parent 89092fafdd
commit 7a9db61da3
1 changed files with 0 additions and 12 deletions
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12
libavformat/matroskadec.c
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@ -3399,18 +3399,6 @@ static int matroska_read_seek(AVFormatContext *s, int stream_index,
tracks[i].audio.sub_packet_cnt = 0;
tracks[i].audio.buf_timecode = AV_NOPTS_VALUE;
tracks[i].end_timecode = 0;
if (tracks[i].type == MATROSKA_TRACK_TYPE_SUBTITLE &&
tracks[i].stream &&
tracks[i].stream->discard != AVDISCARD_ALL) {
index_sub = av_index_search_timestamp(
tracks[i].stream, st->index_entries[index].timestamp,
AVSEEK_FLAG_BACKWARD);
while (index_sub >= 0 &&
index_min > 0 &&
tracks[i].stream->index_entries[index_sub].pos < st->index_entries[index_min].pos &&
st->index_entries[index].timestamp - tracks[i].stream->index_entries[index_sub].timestamp < 30000000000 / matroska->time_scale)
index_min--;
}
}
avio_seek(s->pb, st->index_entries[index_min].pos, SEEK_SET);