Skip to content

F
ffmpeg.wasm-core
Commit cb62510c authored by Peter Ross's avatar Peter Ross Committed by Mans Rullgard
Browse files
Options

bink: simplify how quantization matrices are passed to read_dct_coeffs() 

Signed-off-by: 's avatarMans Rullgard <mans@mansr.com>
parent f344903c
Show whitespace changes
Inline Side-by-side
Showing with 8 additions and 15 deletions
libavcodec/bink.c
View file @ cb62510c
...@@ -571,24 +571,17 @@ static inline int binkb_get_value(BinkContext *c, int bundle_num) ...@@ -571,24 +571,17 @@ static inline int binkb_get_value(BinkContext *c, int bundle_num)
return ret; return ret;
} }
typedef const uint32_t quant_matrices[16][64];
static const quant_matrices * bink_quant_matrices[2][2] = {
{ &bink_inter_quant, &bink_intra_quant },
{ &binkb_inter_quant, &binkb_intra_quant },
};
/** /**
* Read 8x8 block of DCT coefficients. * Read 8x8 block of DCT coefficients.
* *
* @param gb context for reading bits * @param gb context for reading bits
* @param block place for storing coefficients * @param block place for storing coefficients
* @param scan scan order table * @param scan scan order table
* @param is_binkb use version 'b' quantizer matrices * @param quant_matrices quantization matrices
* @param is_intra tells what set of quantizer matrices to use
* @return 0 for success, negative value in other cases * @return 0 for success, negative value in other cases
*/ */
static int read_dct_coeffs(GetBitContext *gb, DCTELEM block[64], const uint8_t *scan, static int read_dct_coeffs(GetBitContext *gb, DCTELEM block[64], const uint8_t *scan,
int is_binkb, int is_intra, int q) const uint32_t quant_matrices[16][64], int q)
{ {
int coef_list[128]; int coef_list[128];
int mode_list[128]; int mode_list[128];
...@@ -674,7 +667,7 @@ static int read_dct_coeffs(GetBitContext *gb, DCTELEM block[64], const uint8_t * ...@@ -674,7 +667,7 @@ static int read_dct_coeffs(GetBitContext *gb, DCTELEM block[64], const uint8_t *
quant_idx = q; quant_idx = q;
} }
quant = (*bink_quant_matrices[is_binkb][is_intra])[quant_idx]; quant = quant_matrices[quant_idx];
block[0] = (block[0] * quant[0]) >> 11; block[0] = (block[0] * quant[0]) >> 11;
for (i = 0; i < coef_count; i++) { for (i = 0; i < coef_count; i++) {
...@@ -855,7 +848,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, ...@@ -855,7 +848,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
c->dsp.clear_block(block); c->dsp.clear_block(block);
block[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC); block[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC);
qp = binkb_get_value(c, BINKB_SRC_INTRA_Q); qp = binkb_get_value(c, BINKB_SRC_INTRA_Q);
read_dct_coeffs(gb, block, c->scantable.permutated, 1, 1, qp); read_dct_coeffs(gb, block, c->scantable.permutated, binkb_intra_quant, qp);
c->dsp.idct_put(dst, stride, block); c->dsp.idct_put(dst, stride, block);
break; break;
case 3: case 3:
...@@ -888,7 +881,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, ...@@ -888,7 +881,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
c->dsp.clear_block(block); c->dsp.clear_block(block);
block[0] = binkb_get_value(c, BINKB_SRC_INTER_DC); block[0] = binkb_get_value(c, BINKB_SRC_INTER_DC);
qp = binkb_get_value(c, BINKB_SRC_INTER_Q); qp = binkb_get_value(c, BINKB_SRC_INTER_Q);
read_dct_coeffs(gb, block, c->scantable.permutated, 1, 0, qp); read_dct_coeffs(gb, block, c->scantable.permutated, binkb_inter_quant, qp);
c->dsp.idct_add(dst, stride, block); c->dsp.idct_add(dst, stride, block);
break; break;
case 5: case 5:
...@@ -1028,7 +1021,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, ...@@ -1028,7 +1021,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
case INTRA_BLOCK: case INTRA_BLOCK:
c->dsp.clear_block(block); c->dsp.clear_block(block);
block[0] = get_value(c, BINK_SRC_INTRA_DC); block[0] = get_value(c, BINK_SRC_INTRA_DC);
read_dct_coeffs(gb, block, c->scantable.permutated, 0, 1, -1); read_dct_coeffs(gb, block, c->scantable.permutated, bink_intra_quant, -1);
c->dsp.idct(block); c->dsp.idct(block);
c->dsp.put_pixels_nonclamped(block, ublock, 8); c->dsp.put_pixels_nonclamped(block, ublock, 8);
break; break;
...@@ -1112,7 +1105,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, ...@@ -1112,7 +1105,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
case INTRA_BLOCK: case INTRA_BLOCK:
c->dsp.clear_block(block); c->dsp.clear_block(block);
block[0] = get_value(c, BINK_SRC_INTRA_DC); block[0] = get_value(c, BINK_SRC_INTRA_DC);
read_dct_coeffs(gb, block, c->scantable.permutated, 0, 1, -1); read_dct_coeffs(gb, block, c->scantable.permutated, bink_intra_quant, -1);
c->dsp.idct_put(dst, stride, block); c->dsp.idct_put(dst, stride, block);
break; break;
case FILL_BLOCK: case FILL_BLOCK:
...@@ -1126,7 +1119,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, ...@@ -1126,7 +1119,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
c->dsp.put_pixels_tab[1][0](dst, ref, stride, 8); c->dsp.put_pixels_tab[1][0](dst, ref, stride, 8);
c->dsp.clear_block(block); c->dsp.clear_block(block);
block[0] = get_value(c, BINK_SRC_INTER_DC); block[0] = get_value(c, BINK_SRC_INTER_DC);
read_dct_coeffs(gb, block, c->scantable.permutated, 0, 0, -1); read_dct_coeffs(gb, block, c->scantable.permutated, bink_inter_quant, -1);
c->dsp.idct_add(dst, stride, block); c->dsp.idct_add(dst, stride, block);
break; break;
case PATTERN_BLOCK: case PATTERN_BLOCK:
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment