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encry coef transf sign

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Wassim Hamidouche 2016-06-07 11:19:57 +02:00 committed by Ari Koivula
parent 02b0712973
commit 7ad5f8bbe5
1 changed files with 8 additions and 1 deletions
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9
src/encoderstate.c
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@ -1766,6 +1766,7 @@ void kvz_encode_coeff_nxn(encoder_state_t * const state, coeff_t *coeff, uint8_t
// Scan all coeff groups to find out which of them have coeffs. // Scan all coeff groups to find out which of them have coeffs.
// Populate sig_coeffgroup_flag with that info. // Populate sig_coeffgroup_flag with that info.
unsigned sig_cg_cnt = 0; unsigned sig_cg_cnt = 0;
for (int cg_y = 0; cg_y < width / 4; ++cg_y) { for (int cg_y = 0; cg_y < width / 4; ++cg_y) {
for (int cg_x = 0; cg_x < width / 4; ++cg_x) { for (int cg_x = 0; cg_x < width / 4; ++cg_x) {
@ -1864,6 +1865,10 @@ void kvz_encode_coeff_nxn(encoder_state_t * const state, coeff_t *coeff, uint8_t
ctx_sig = kvz_context_get_sig_ctx_inc(pattern_sig_ctx, scan_mode, pos_x, pos_y, ctx_sig = kvz_context_get_sig_ctx_inc(pattern_sig_ctx, scan_mode, pos_x, pos_y,
log2_block_size, type); log2_block_size, type);
cabac->cur_ctx = &baseCtx[ctx_sig]; cabac->cur_ctx = &baseCtx[ctx_sig];
if(!state->cabac.only_count)
if (state->encoder_control->cfg->crypto_features & KVZ_CRYPTO_TRANSF_COEFF_SIGNS)
sig = sig ^ ff_get_key(&state->tile->dbs_g, 1);
CABAC_BIN(cabac, sig, "sig_coeff_flag"); CABAC_BIN(cabac, sig, "sig_coeff_flag");
} }
@ -1927,7 +1932,9 @@ void kvz_encode_coeff_nxn(encoder_state_t * const state, coeff_t *coeff, uint8_t
CABAC_BIN(cabac, symbol, "coeff_abs_level_greater2_flag"); CABAC_BIN(cabac, symbol, "coeff_abs_level_greater2_flag");
} }
} }
if(!state->cabac.only_count)
if (state->encoder_control->cfg->crypto_features & KVZ_CRYPTO_TRANSF_COEFF_SIGNS)
coeff_signs = coeff_signs ^ ff_get_key(&state->tile->dbs_g, num_non_zero);
if (be_valid && sign_hidden) { if (be_valid && sign_hidden) {
CABAC_BINS_EP(cabac, (coeff_signs >> 1), (num_non_zero - 1), "coeff_sign_flag"); CABAC_BINS_EP(cabac, (coeff_signs >> 1), (num_non_zero - 1), "coeff_sign_flag");
} else { } else {