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demux: disallow seeking if there are streams with no timestamps

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The seek range computation ignored streams with no timestamps. For
things like buffer estimation this is OK and wanted, but the seek range
needs to be conservative.
This commit is contained in:
wm4
2017-10-25 16:39:33 +02:00
parent 3d71651523
commit e6348504b3
1 changed files with 7 additions and 3 deletions
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demux/demux.c
+7 -3
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@@ -1962,6 +1962,7 @@ static int cached_demux_control(struct demux_internal *in, int cmd, void *arg)
.ts_duration = -1,
};
bool any_packets = false;
bool seek_ok = true;
for (int n = 0; n < in->num_streams; n++) {
struct demux_stream *ds = in->streams[n]->ds;
if (ds->active && !(!ds->queue_head && ds->eof) && !ds->ignore_eof)
@@ -1976,6 +1977,9 @@ static int cached_demux_control(struct demux_internal *in, int cmd, void *arg)
// there)
r->ts_min = MP_PTS_MAX(r->ts_min, ds->back_pts);
r->ts_max = MP_PTS_MAX(r->ts_max, ds->last_ts);
if (ds->back_pts == MP_NOPTS_VALUE ||
ds->last_ts == MP_NOPTS_VALUE)
seek_ok = false;
if (ds->queue_head) {
any_packets = true;
double ts = PTS_OR_DEF(ds->queue_head->dts,
@@ -1993,10 +1997,10 @@ static int cached_demux_control(struct demux_internal *in, int cmd, void *arg)
r->ts_max = MP_ADD_PTS(r->ts_max, in->ts_offset);
if (r->ts_reader != MP_NOPTS_VALUE && r->ts_reader <= r->ts_max)
r->ts_duration = r->ts_max - r->ts_reader;
if (in->seeking || !any_packets) {
r->ts_max = r->ts_min = MP_NOPTS_VALUE;
if (in->seeking || !any_packets)
r->ts_duration = 0;
}
if (in->seeking || !seek_ok)
r->ts_max = r->ts_min = MP_NOPTS_VALUE;
return CONTROL_OK;
}
}