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nutenc: avoid av_tree_find() operation per syncpoint

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-05-29 03:20:04 +02:00
parent 6b041cb617
commit df889be0a8
1 changed files with 3 additions and 7 deletions
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10
libavformat/nutenc.c
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@ -991,7 +991,7 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt)
if (store_sp &&
(!(nut->flags & NUT_PIPE) || nut->last_syncpoint_pos == INT_MIN)) {
Syncpoint *sp, dummy = { .pos = INT64_MAX };
int64_t sp_pos = INT64_MAX;
ff_nut_reset_ts(nut, *nus->time_base, pkt->dts);
for (i = 0; i < s->nb_streams; i++) {
@ -1003,19 +1003,15 @@ static int nut_write_packet(AVFormatContext *s, AVPacket *pkt)
int index = av_index_search_timestamp(st, dts_tb,
AVSEEK_FLAG_BACKWARD);
if (index >= 0)
dummy.pos = FFMIN(dummy.pos, st->index_entries[index].pos);
sp_pos = FFMIN(sp_pos, st->index_entries[index].pos);
}
if (dummy.pos == INT64_MAX)
dummy.pos = 0;
sp = av_tree_find(nut->syncpoints, &dummy, (void *)ff_nut_sp_pos_cmp,
NULL);
nut->last_syncpoint_pos = avio_tell(bc);
ret = avio_open_dyn_buf(&dyn_bc);
if (ret < 0)
return ret;
put_tt(nut, nus->time_base, dyn_bc, pkt->dts);
ff_put_v(dyn_bc, sp ? (nut->last_syncpoint_pos - sp->pos) >> 4 : 0);
ff_put_v(dyn_bc, sp_pos != INT64_MAX ? (nut->last_syncpoint_pos - sp_pos) >> 4 : 0);
if (nut->flags & NUT_BROADCAST) {
put_tt(nut, nus->time_base, dyn_bc,