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Remove unnecessary memset(best_index, 0) from trellis/optimize.

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First 50 frames of bus @ 1500kbps (speed 0) goes from 2min12.6 to
2min11.6, i.e. 0.75% overall speedup.

Change-Id: I67054f8146e82a02b6457c51a1c8627a937e5e1e
This commit is contained in:
Ronald S. Bultje
2013-07-03 10:09:15 -07:00
parent fcf7998a47
commit 5a73254918
1 changed files with 1 additions and 1 deletions
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2
vp9/encoder/vp9_encodemb.c
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@@ -188,7 +188,6 @@ static void optimize_b(VP9_COMMON *const cm, MACROBLOCK *mb,
if (mb->e_mbd.mode_info_context->mbmi.ref_frame[0] == INTRA_FRAME) if (mb->e_mbd.mode_info_context->mbmi.ref_frame[0] == INTRA_FRAME)
rdmult = (rdmult * 9) >> 4; rdmult = (rdmult * 9) >> 4;
rddiv = mb->rddiv; rddiv = mb->rddiv;
memset(best_index, 0, sizeof(best_index));
/* Initialize the sentinel node of the trellis. */ /* Initialize the sentinel node of the trellis. */
tokens[eob][0].rate = 0; tokens[eob][0].rate = 0;
tokens[eob][0].error = 0; tokens[eob][0].error = 0;
@@ -318,6 +317,7 @@ static void optimize_b(VP9_COMMON *const cm, MACROBLOCK *mb,
mb->token_costs[tx_size][type][ref][1][band][0][t1]; mb->token_costs[tx_size][type][ref][1][band][0][t1];
tokens[next][1].token = ZERO_TOKEN; tokens[next][1].token = ZERO_TOKEN;
} }
best_index[i][0] = best_index[i][1] = 0;
/* Don't update next, because we didn't add a new node. */ /* Don't update next, because we didn't add a new node. */
} }
} }