mirror of https://github.com/thesofproject/sof.git
91 lines
3.3 KiB
Matlab
91 lines
3.3 KiB
Matlab
function blob8 = multiband_drc_build_blob(num_bands, enable_emp_deemp,
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emp_coefs, deemp_coefs,
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crossover_coefs, drc_coefs,
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endian, ipc_ver)
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if nargin < 7
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endian = 'little'
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end
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if nargin < 8
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ipc_ver = 3;
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end
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%% Shift values for little/big endian
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switch lower(endian)
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case 'little'
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sh = [0 -8 -16 -24];
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case 'big'
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sh = [-24 -16 -8 0];
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otherwise
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error('Unknown endiannes');
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end
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%% Build Blob
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% refer to sof/src/include/user/multiband_drc.h for the config struct.
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emp_data_num = numel(emp_coefs);
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deemp_data_num = numel(deemp_coefs);
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crossover_data_num = numel(crossover_coefs);
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drc_data_num = numel(fieldnames(drc_coefs(1))) * length(drc_coefs);
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data_size = 4 * (1 + 1 + 1 + 8 + emp_data_num + deemp_data_num + crossover_data_num + drc_data_num);
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[abi_bytes, abi_size] = get_abi(data_size, ipc_ver);
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blob_size = data_size + abi_size;
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blob8 = uint8(zeros(1, blob_size));
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% Pack Blob data
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% Insert ABI Header
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blob8(1:abi_size) = abi_bytes;
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j = abi_size + 1;
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% Insert Data
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blob8(j:j+3) = word2byte(data_size, sh); j=j+4; % size
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blob8(j:j+3) = word2byte(num_bands, sh); j=j+4; % num_bands
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blob8(j:j+3) = word2byte(enable_emp_deemp, sh); j=j+4; % enable_emp_deemp
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for i = 1:8
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blob8(j:j+3) = word2byte(0, sh); j=j+4; % reserved
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end
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for i = 1:length(emp_coefs)
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blob8(j:j+3) = word2byte(emp_coefs(i), sh); j=j+4; % emp_coef
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end
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for i = 1:length(deemp_coefs)
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blob8(j:j+3) = word2byte(deemp_coefs(i), sh); j=j+4; % deemp_coef
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end
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for i = 1:length(crossover_coefs)
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blob8(j:j+3) = word2byte(crossover_coefs(i), sh); j=j+4; % crossover_coef
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end
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for i = 1:length(drc_coefs) % drc_coef
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blob8(j:j+3) = word2byte(drc_coefs(i).enabled, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).db_threshold, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).db_knee, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).ratio, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).pre_delay_time, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).linear_threshold, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).slope, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).K, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).knee_alpha, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).knee_beta, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).knee_threshold, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).ratio_base, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).master_linear_gain, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).one_over_attack_frames, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).sat_release_frames_inv_neg, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).sat_release_rate_at_neg_two_db, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).kSpacingDb, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).kA, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).kB, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).kC, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).kD, sh); j=j+4;
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blob8(j:j+3) = word2byte(drc_coefs(i).kE, sh); j=j+4;
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end
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end
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function bytes = word2byte(word, sh)
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bytes = uint8(zeros(1,4));
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bytes(1) = bitand(bitshift(word, sh(1)), 255);
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bytes(2) = bitand(bitshift(word, sh(2)), 255);
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bytes(3) = bitand(bitshift(word, sh(3)), 255);
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bytes(4) = bitand(bitshift(word, sh(4)), 255);
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end
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