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Better scheduling of blocks to descrambler == less CPU usage

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This commit is contained in:
Andreas Öman 2009-11-17 21:57:35 +00:00
parent ccf4d92de3
commit 54bd74cae4
1 changed files with 17 additions and 9 deletions
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26
src/cwc.c
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@ -1061,16 +1061,24 @@ cwc_descramble(th_descrambler_t *td, th_transport_t *t, struct th_stream *st,
vec[1] = ct->ct_tsbcluster + ct->ct_cluster_size * 188;
vec[2] = NULL;
while(1) {
t0 = vec[0];
r = decrypt_packets(ct->ct_keys, vec);
if(r == 0)
break;
for(i = 0; i < r; i++) {
ts_recv_packet2(t, t0);
t0 += 188;
}
r = decrypt_packets(ct->ct_keys, vec);
if(r == 0)
return 0;
t0 = ct->ct_tsbcluster;
for(i = 0; i < r; i++) {
ts_recv_packet2(t, t0);
t0 += 188;
}
i = ct->ct_cluster_size - r;
assert(i >= 0);
if(i > 0) {
memmove(ct->ct_tsbcluster, t0, i * 188);
ct->ct_fill = i;
}
return 0;
}