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use 32bit for storing dequant coeffs, instead of 16b.

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is a tad faster

Change-Id: Ibef8f3b4f3f04a9a647098e5946f616e211a61cd
This commit is contained in:
Pascal Massimino 2012-01-29 17:38:37 -08:00
parent b9600308e8
commit f73947f41d
2 changed files with 3 additions and 2 deletions
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2
src/dec/vp8.c
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@ -460,7 +460,7 @@ typedef const uint8_t (*ProbaArray)[NUM_CTX][NUM_PROBAS]; // for const-casting
// Returns the position of the last non-zero coeff plus one
// (and 0 if there's no coeff at all)
static int GetCoeffs(VP8BitReader* const br, ProbaArray prob,
int ctx, const uint16_t dq[2], int n, int16_t* out) {
int ctx, const quant_t dq, int n, int16_t* out) {
const uint8_t* p = prob[kBands[n]][ctx];
if (!VP8GetBit(br, p[0])) { // first EOB is more a 'CBP' bit.
return 0;

3
src/dec/vp8i.h
View File

@ -162,8 +162,9 @@ typedef struct { // used for syntax-parsing
} VP8MB;
// Dequantization matrices
typedef int quant_t[2]; // [DC / AC]. Can be 'uint16_t[2]' too (~slower).
typedef struct {
uint16_t y1_mat_[2], y2_mat_[2], uv_mat_[2]; // [DC / AC]
quant_t y1_mat_, y2_mat_, uv_mat_;
} VP8QuantMatrix;
// Persistent information needed by the parallel processing