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Move token_cache from cost_coeffs to MACROBLOCK

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This commit moves token_cache buffer into macroblock struct, instead
of defining as a local variable in cost_coeffs. This avoids repeatedly
re-allocating memory space in the rate-distortion optimization loop.

The runtime at speed 0 reduces:
bus 2000kbps, 161692ms to 159951ms
football 600kbps, 229505ms to 225821ms

Change-Id: If7da6b0b6d8c5138a16271a33c4548fba33d8840
This commit is contained in:
Jingning Han 2013-10-11 11:26:32 -07:00
parent 4c20bff9d2
commit f60a3910c4
2 changed files with 9 additions and 8 deletions
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1
vp9/encoder/vp9_block.h
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@ -135,6 +135,7 @@ struct macroblock {
// note that token_costs is the cost when eob node is skipped
vp9_coeff_cost token_costs[TX_SIZES];
uint8_t token_cache[1024];
int optimize;

16
vp9/encoder/vp9_rdopt.c
View File

@ -467,12 +467,12 @@ static const int16_t band_counts[TX_SIZES][8] = {
{ 1, 2, 3, 4, 11, 1024 - 21, 0 },
};
static INLINE int cost_coeffs(MACROBLOCK *mb,
static INLINE int cost_coeffs(MACROBLOCK *x,
int plane, int block,
ENTROPY_CONTEXT *A, ENTROPY_CONTEXT *L,
TX_SIZE tx_size,
const int16_t *scan, const int16_t *nb) {
MACROBLOCKD *const xd = &mb->e_mbd;
MACROBLOCKD *const xd = &x->e_mbd;
MB_MODE_INFO *mbmi = &xd->this_mi->mbmi;
struct macroblockd_plane *pd = &xd->plane[plane];
const PLANE_TYPE type = pd->plane_type;
@ -481,9 +481,9 @@ static INLINE int cost_coeffs(MACROBLOCK *mb,
const int16_t *const qcoeff_ptr = BLOCK_OFFSET(pd->qcoeff, block);
const int ref = mbmi->ref_frame[0] != INTRA_FRAME;
unsigned int (*token_costs)[2][PREV_COEF_CONTEXTS][MAX_ENTROPY_TOKENS] =
mb->token_costs[tx_size][type][ref];
x->token_costs[tx_size][type][ref];
const ENTROPY_CONTEXT above_ec = !!*A, left_ec = !!*L;
uint8_t token_cache[1024];
uint8_t *p_tok = x->token_cache;
int pt = combine_entropy_contexts(above_ec, left_ec);
int c, cost;
@ -502,7 +502,7 @@ static INLINE int cost_coeffs(MACROBLOCK *mb,
int v = qcoeff_ptr[0];
int prev_t = vp9_dct_value_tokens_ptr[v].token;
cost = (*token_costs)[0][pt][prev_t] + vp9_dct_value_cost_ptr[v];
token_cache[0] = vp9_pt_energy_class[prev_t];
p_tok[0] = vp9_pt_energy_class[prev_t];
++token_costs;
// ac tokens
@ -512,9 +512,9 @@ static INLINE int cost_coeffs(MACROBLOCK *mb,
v = qcoeff_ptr[rc];
t = vp9_dct_value_tokens_ptr[v].token;
pt = get_coef_context(nb, token_cache, c);
pt = get_coef_context(nb, p_tok, c);
cost += (*token_costs)[!prev_t][pt][t] + vp9_dct_value_cost_ptr[v];
token_cache[rc] = vp9_pt_energy_class[t];
p_tok[rc] = vp9_pt_energy_class[t];
prev_t = t;
if (!--band_left) {
band_left = *band_count++;
@ -524,7 +524,7 @@ static INLINE int cost_coeffs(MACROBLOCK *mb,
// eob token
if (band_left) {
pt = get_coef_context(nb, token_cache, c);
pt = get_coef_context(nb, p_tok, c);
cost += (*token_costs)[0][pt][DCT_EOB_TOKEN];
}
}