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Short circuit rate_block in block_rd_txfm.

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Don't run rate_block (cost_coeffs) if distortion alone is enough to
surpass best_rd.

This decreases 2nd pass runtime on HD at speed 2 by about 2%. There is
zero effect on output if tx_cache is removed.

Change-Id: Ia3b1cc77bfbe6ee988c395fde06c0eb92940b784
This commit is contained in:
Alex Converse 2015-07-30 15:33:47 -07:00
parent 0e3f494b21
commit 73422d3b2d
1 changed files with 6 additions and 0 deletions
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6
vp9/encoder/vp9_rdopt.c
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@ -551,6 +551,12 @@ static void block_rd_txfm(int plane, int block, BLOCK_SIZE plane_bsize,
#endif // CONFIG_VP9_HIGHBITDEPTH
}
rd = RDCOST(x->rdmult, x->rddiv, 0, dist);
if (args->this_rd + rd > args->best_rd) {
args->exit_early = 1;
return;
}
rate = rate_block(plane, block, plane_bsize, tx_size, args);
rd1 = RDCOST(x->rdmult, x->rddiv, rate, dist);
rd2 = RDCOST(x->rdmult, x->rddiv, 0, sse);