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| author | Peter Ross <pross@xvid.org> | 2011-02-13 03:33:49 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-02-14 23:58:18 +0100 |
| commit | a093650b6c82ad84b257dd21e7d0028712f4bc34 (patch) | |
| tree | 617db71d4e518fb44a2510c6d30d3f20b1a9fc89 /libavcodec/bink.c | |
| parent | 4064d770adb077e021b524a74225667404a3706e (diff) | |
| download | ffmpeg-a093650b6c82ad84b257dd21e7d0028712f4bc34.tar.gz | |
bink: simplify how quantization matrices are passed to read_dct_coeffs()
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit cb62510cab8b745e65eb966c72ab7e9b122d564b)
Diffstat (limited to 'libavcodec/bink.c')
| -rw-r--r-- | libavcodec/bink.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/libavcodec/bink.c b/libavcodec/bink.c index 928bf53b3b..f13e1c7a1b 100644 --- a/libavcodec/bink.c +++ b/libavcodec/bink.c @@ -571,24 +571,17 @@ static inline int binkb_get_value(BinkContext *c, int bundle_num) 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. * * @param gb context for reading bits * @param block place for storing coefficients * @param scan scan order table - * @param is_binkb use version 'b' quantizer matrices - * @param is_intra tells what set of quantizer matrices to use + * @param quant_matrices quantization matrices * @return 0 for success, negative value in other cases */ 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 mode_list[128]; @@ -674,7 +667,7 @@ static int read_dct_coeffs(GetBitContext *gb, DCTELEM block[64], const uint8_t * 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; for (i = 0; i < coef_count; i++) { @@ -855,7 +848,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, c->dsp.clear_block(block); block[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC); 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); break; case 3: @@ -888,7 +881,7 @@ static int binkb_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, c->dsp.clear_block(block); block[0] = binkb_get_value(c, BINKB_SRC_INTER_DC); 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); break; case 5: @@ -1028,7 +1021,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, case INTRA_BLOCK: c->dsp.clear_block(block); 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.put_pixels_nonclamped(block, ublock, 8); break; @@ -1112,7 +1105,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx, case INTRA_BLOCK: c->dsp.clear_block(block); 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); break; case FILL_BLOCK: @@ -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.clear_block(block); 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); break; case PATTERN_BLOCK: |