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retroSoC/rtl/ip/multimedia/jpeg_marker_parser.sv
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maksyuki 39bc1c84b4 feat: add tests for JPEG reference model and register synchronization 
- Implemented tests for the deterministic baseline JPEG reference model in , covering encoding, decoding, quality scaling, and error handling.
- Created  to ensure synchronization between RTL and C register constants for JPEG.
- Updated  to reflect changes in the number of APB interfaces and IRQ mappings, ensuring the topology generates correct bindings.
2026-08-31 19:23:19 +08:00

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29 KiB
Systemverilog
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// Copyright (c) 2026 Yuchi Miao <miaoyuchi@ict.ac.cn>
// retroSoC is licensed under Mulan PSL v2.
// THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND.
module jpeg_marker_parser (
// verilog_format: off -- preserve byte, table, header, and error interface columns
input logic clk_i,
input logic rst_n_i,
input logic start_i,
input logic [ 1:0] table_context_i,
input logic [ 7:0] byte_i,
input logic byte_valid_i,
output logic byte_ready_o,
output logic [ 1:0] table_context_o,
output logic [ 3:0] table_kind_o,
output logic [ 7:0] table_index_o,
output logic [31:0] table_data_o,
output logic table_write_o,
output logic table_commit_o,
output logic header_valid_o,
input logic header_ready_i,
output logic entropy_o,
output logic [15:0] width_o,
output logic [15:0] height_o,
output logic [ 1:0] sampling_o,
output logic [ 1:0] component_count_o,
output logic [23:0] component_id_o,
output logic [23:0] component_factor_o,
output logic [ 5:0] quant_table_o,
output logic [ 5:0] dc_table_o,
output logic [ 5:0] ac_table_o,
output logic [15:0] restart_interval_o,
output logic [31:0] marker_count_o,
output logic error_o,
output logic [ 4:0] error_code_o
// verilog_format: on
);
typedef enum logic [4:0] {
Idle,
SoiPrefix,
SoiCode,
MarkerPrefix,
MarkerCode,
LengthHigh,
LengthLow,
Skip,
DqtInfo,
DqtData,
DhtInfo,
DhtCounts,
DhtAdvance,
DhtValues,
SofData,
DriData,
SosData,
HeaderReady,
Entropy,
Error
} state_e;
localparam logic [4:0] ErrorMarker = 5'd4;
localparam logic [4:0] ErrorProcess = 5'd5;
localparam logic [4:0] ErrorPrecision = 5'd6;
localparam logic [4:0] ErrorSampling = 5'd7;
localparam logic [4:0] ErrorLength = 5'd8;
localparam logic [4:0] ErrorHuffman = 5'd9;
localparam logic [4:0] ErrorTruncated = 5'd10;
state_e s_state_d;
state_e s_state_q;
logic [ 4:0] s_state_bits_q;
logic [ 1:0] s_context_d;
logic [ 1:0] s_context_q;
logic [ 7:0] s_marker_d;
logic [ 7:0] s_marker_q;
logic [ 7:0] s_len_high_d;
logic [ 7:0] s_len_high_q;
logic [15:0] s_remaining_d;
logic [15:0] s_remaining_q;
logic [15:0] s_payload_index_d;
logic [15:0] s_payload_index_q;
logic [15:0] s_width_d;
logic [15:0] s_width_q;
logic [15:0] s_height_d;
logic [15:0] s_height_q;
logic [ 1:0] s_component_cnt_d;
logic [ 1:0] s_component_cnt_q;
logic [ 2:0][7:0] s_component_id_d;
logic [ 2:0][7:0] s_component_id_q;
logic [ 2:0][7:0] s_component_factor_d;
logic [ 2:0][7:0] s_component_factor_q;
logic [ 2:0][1:0] s_quant_table_d;
logic [ 2:0][1:0] s_quant_table_q;
logic [ 2:0][1:0] s_dc_table_d;
logic [ 2:0][1:0] s_dc_table_q;
logic [ 2:0][1:0] s_ac_table_d;
logic [ 2:0][1:0] s_ac_table_q;
logic [15:0] s_restart_interval_d;
logic [15:0] s_restart_interval_q;
logic [31:0] s_marker_cnt_d;
logic [31:0] s_marker_cnt_q;
logic [ 7:0] s_dqt_info_d;
logic [ 7:0] s_dqt_info_q;
logic [ 6:0] s_table_index_d;
logic [ 6:0] s_table_index_q;
logic [ 7:0] s_dht_info_d;
logic [ 7:0] s_dht_info_q;
logic [15:0][7:0] s_huff_counts_d;
logic [15:0][7:0] s_huff_counts_q;
logic [ 4:0] s_huff_len_d;
logic [ 4:0] s_huff_len_q;
logic [ 8:0] s_huff_values_d;
logic [ 8:0] s_huff_values_q;
logic [ 7:0] s_huff_len_remaining_d;
logic [ 7:0] s_huff_len_remaining_q;
logic [15:0] s_huff_code_d;
logic [15:0] s_huff_code_q;
logic [ 7:0] s_sos_ss_d;
logic [ 7:0] s_sos_ss_q;
logic [ 7:0] s_sos_se_d;
logic [ 7:0] s_sos_se_q;
logic s_err_d;
logic s_err_q;
logic [ 4:0] s_err_code_d;
logic [ 4:0] s_err_code_q;
logic [15:0] s_segment_len;
logic s_byte_accept;
logic [ 1:0] s_component_index;
logic [ 1:0] s_sos_component_index;
function automatic logic [5:0] zigzag_index(input logic [5:0] index_i);
begin
unique case (index_i)
6'd0: zigzag_index = 6'd0;
6'd1: zigzag_index = 6'd1;
6'd2: zigzag_index = 6'd8;
6'd3: zigzag_index = 6'd16;
6'd4: zigzag_index = 6'd9;
6'd5: zigzag_index = 6'd2;
6'd6: zigzag_index = 6'd3;
6'd7: zigzag_index = 6'd10;
6'd8: zigzag_index = 6'd17;
6'd9: zigzag_index = 6'd24;
6'd10: zigzag_index = 6'd32;
6'd11: zigzag_index = 6'd25;
6'd12: zigzag_index = 6'd18;
6'd13: zigzag_index = 6'd11;
6'd14: zigzag_index = 6'd4;
6'd15: zigzag_index = 6'd5;
6'd16: zigzag_index = 6'd12;
6'd17: zigzag_index = 6'd19;
6'd18: zigzag_index = 6'd26;
6'd19: zigzag_index = 6'd33;
6'd20: zigzag_index = 6'd40;
6'd21: zigzag_index = 6'd48;
6'd22: zigzag_index = 6'd41;
6'd23: zigzag_index = 6'd34;
6'd24: zigzag_index = 6'd27;
6'd25: zigzag_index = 6'd20;
6'd26: zigzag_index = 6'd13;
6'd27: zigzag_index = 6'd6;
6'd28: zigzag_index = 6'd7;
6'd29: zigzag_index = 6'd14;
6'd30: zigzag_index = 6'd21;
6'd31: zigzag_index = 6'd28;
6'd32: zigzag_index = 6'd35;
6'd33: zigzag_index = 6'd42;
6'd34: zigzag_index = 6'd49;
6'd35: zigzag_index = 6'd56;
6'd36: zigzag_index = 6'd57;
6'd37: zigzag_index = 6'd50;
6'd38: zigzag_index = 6'd43;
6'd39: zigzag_index = 6'd36;
6'd40: zigzag_index = 6'd29;
6'd41: zigzag_index = 6'd22;
6'd42: zigzag_index = 6'd15;
6'd43: zigzag_index = 6'd23;
6'd44: zigzag_index = 6'd30;
6'd45: zigzag_index = 6'd37;
6'd46: zigzag_index = 6'd44;
6'd47: zigzag_index = 6'd51;
6'd48: zigzag_index = 6'd58;
6'd49: zigzag_index = 6'd59;
6'd50: zigzag_index = 6'd52;
6'd51: zigzag_index = 6'd45;
6'd52: zigzag_index = 6'd38;
6'd53: zigzag_index = 6'd31;
6'd54: zigzag_index = 6'd39;
6'd55: zigzag_index = 6'd46;
6'd56: zigzag_index = 6'd53;
6'd57: zigzag_index = 6'd60;
6'd58: zigzag_index = 6'd61;
6'd59: zigzag_index = 6'd54;
6'd60: zigzag_index = 6'd47;
6'd61: zigzag_index = 6'd55;
6'd62: zigzag_index = 6'd62;
default: zigzag_index = 6'd63;
endcase
end
endfunction
function automatic logic [31:0] saturating_increment(input logic [31:0] value_i);
return (&value_i) ? value_i : value_i + 1'b1;
endfunction
assign s_state_q = state_e'(s_state_bits_q);
assign byte_ready_o = (s_state_q != Idle) && (s_state_q != DhtAdvance) &&
(s_state_q != HeaderReady) && (s_state_q != Entropy) &&
(s_state_q != Error);
assign s_byte_accept = byte_valid_i && byte_ready_o;
assign s_segment_len = {s_len_high_q, byte_i};
assign header_valid_o = s_state_q == HeaderReady;
assign entropy_o = s_state_q == Entropy;
assign width_o = s_width_q;
assign height_o = s_height_q;
assign component_count_o = s_component_cnt_q;
assign component_id_o = s_component_id_q;
assign component_factor_o = s_component_factor_q;
assign quant_table_o = s_quant_table_q;
assign dc_table_o = s_dc_table_q;
assign ac_table_o = s_ac_table_q;
assign restart_interval_o = s_restart_interval_q;
assign marker_count_o = s_marker_cnt_q;
assign error_o = s_err_q;
assign error_code_o = s_err_code_q;
assign table_context_o = s_context_q;
assign sampling_o = (s_component_cnt_q == 2'd1) ? 2'd0 :
(s_component_factor_q[0] == 8'h11) ? 2'd1 :
(s_component_factor_q[0] == 8'h21) ? 2'd2 : 2'd3;
always_comb begin
s_component_index = '0;
if (s_payload_index_q >= 16'd6) begin
s_component_index = 2'((int'(s_payload_index_q) - 6) / 3);
end
s_sos_component_index = 2'((int'(s_payload_index_q) - 1) / 2);
end
always_comb begin
s_state_d = s_state_q;
s_context_d = s_context_q;
s_marker_d = s_marker_q;
s_len_high_d = s_len_high_q;
s_remaining_d = s_remaining_q;
s_payload_index_d = s_payload_index_q;
s_width_d = s_width_q;
s_height_d = s_height_q;
s_component_cnt_d = s_component_cnt_q;
s_component_id_d = s_component_id_q;
s_component_factor_d = s_component_factor_q;
s_quant_table_d = s_quant_table_q;
s_dc_table_d = s_dc_table_q;
s_ac_table_d = s_ac_table_q;
s_restart_interval_d = s_restart_interval_q;
s_marker_cnt_d = s_marker_cnt_q;
s_dqt_info_d = s_dqt_info_q;
s_table_index_d = s_table_index_q;
s_dht_info_d = s_dht_info_q;
s_huff_counts_d = s_huff_counts_q;
s_huff_len_d = s_huff_len_q;
s_huff_values_d = s_huff_values_q;
s_huff_len_remaining_d = s_huff_len_remaining_q;
s_huff_code_d = s_huff_code_q;
s_sos_ss_d = s_sos_ss_q;
s_sos_se_d = s_sos_se_q;
s_err_d = s_err_q;
s_err_code_d = s_err_code_q;
table_kind_o = 4'd0;
table_index_o = 8'd0;
table_data_o = 32'd0;
table_write_o = 1'b0;
table_commit_o = 1'b0;
if (start_i) begin
s_state_d = SoiPrefix;
s_context_d = table_context_i;
s_remaining_d = 16'd0;
s_payload_index_d = 16'd0;
s_width_d = 16'd0;
s_height_d = 16'd0;
s_component_cnt_d = 2'd0;
s_component_id_d = '0;
s_component_factor_d = '0;
s_quant_table_d = '0;
s_dc_table_d = '0;
s_ac_table_d = '0;
s_restart_interval_d = 16'd0;
s_marker_cnt_d = 32'd0;
s_err_d = 1'b0;
s_err_code_d = 5'd0;
end else begin
unique case (s_state_q)
Idle: begin
end
SoiPrefix: begin
if (s_byte_accept) begin
if (byte_i == 8'hff) begin
s_state_d = SoiCode;
end else begin
s_err_d = 1'b1;
s_err_code_d = ErrorMarker;
s_state_d = Error;
end
end
end
SoiCode: begin
if (s_byte_accept) begin
if (byte_i == 8'hd8) begin
s_marker_cnt_d = 32'd1;
s_state_d = MarkerPrefix;
end else begin
s_err_d = 1'b1;
s_err_code_d = ErrorMarker;
s_state_d = Error;
end
end
end
MarkerPrefix: begin
if (s_byte_accept && (byte_i == 8'hff)) begin
s_state_d = MarkerCode;
end else if (s_byte_accept) begin
s_err_d = 1'b1;
s_err_code_d = ErrorMarker;
s_state_d = Error;
end
end
MarkerCode: begin
if (s_byte_accept) begin
if (byte_i == 8'hff) begin
s_state_d = MarkerCode;
end else if ((byte_i == 8'hd8) || (byte_i == 8'hd9) ||
((byte_i >= 8'hd0) && (byte_i <= 8'hd7))) begin
s_err_d = 1'b1;
s_err_code_d = ErrorMarker;
s_state_d = Error;
end else if ((byte_i == 8'hc1) || (byte_i == 8'hc2) ||
(byte_i == 8'hc3) || ((byte_i >= 8'hc5) && (byte_i <= 8'hcf))) begin
s_err_d = 1'b1;
s_err_code_d = ErrorProcess;
s_state_d = Error;
end else if (byte_i == 8'hdc) begin
s_err_d = 1'b1;
s_err_code_d = ErrorProcess;
s_state_d = Error;
end else begin
s_marker_d = byte_i;
s_marker_cnt_d = saturating_increment(s_marker_cnt_q);
s_state_d = LengthHigh;
end
end
end
LengthHigh: begin
if (s_byte_accept) begin
s_len_high_d = byte_i;
s_state_d = LengthLow;
end
end
LengthLow: begin
if (s_byte_accept) begin
if (s_segment_len < 16'd2) begin
s_err_d = 1'b1;
s_err_code_d = ErrorLength;
s_state_d = Error;
end else begin
s_remaining_d = s_segment_len - 16'd2;
s_payload_index_d = 16'd0;
unique case (s_marker_q)
8'hdb: s_state_d = DqtInfo;
8'hc4: s_state_d = DhtInfo;
8'hc0: s_state_d = SofData;
8'hdd: s_state_d = DriData;
8'hda: s_state_d = SosData;
default: begin
if ((s_marker_q >= 8'he0 && s_marker_q <= 8'hef) || (s_marker_q == 8'hfe)) begin
if (s_segment_len == 16'd2) begin
s_state_d = MarkerPrefix;
end else begin
s_state_d = Skip;
end
end else begin
s_err_d = 1'b1;
s_err_code_d = ErrorMarker;
s_state_d = Error;
end
end
endcase
end
end
end
Skip: begin
if (s_byte_accept) begin
s_remaining_d = s_remaining_q - 1'b1;
if (s_remaining_q == 16'd1) begin
s_state_d = MarkerPrefix;
end
end
end
DqtInfo: begin
if (s_byte_accept) begin
if ((byte_i[7:4] != 4'd0) || (byte_i[3:0] > 4'd3) || (s_remaining_q < 16'd65)) begin
s_err_d = 1'b1;
s_err_code_d = ErrorPrecision;
s_state_d = Error;
end else begin
s_dqt_info_d = byte_i;
s_table_index_d = 7'd0;
s_remaining_d = s_remaining_q - 1'b1;
s_state_d = DqtData;
end
end
end
DqtData: begin
if (s_byte_accept) begin
if (byte_i == 8'd0) begin
s_err_d = 1'b1;
s_err_code_d = ErrorPrecision;
s_state_d = Error;
end else begin
table_kind_o = s_dqt_info_q[3:0];
table_index_o = {2'd0, zigzag_index(s_table_index_q[5:0])};
table_data_o = {24'd0, byte_i};
table_write_o = 1'b1;
s_remaining_d = s_remaining_q - 1'b1;
if (s_table_index_q == 7'd63) begin
s_table_index_d = 7'd0;
if (s_remaining_q == 16'd1) begin
s_state_d = MarkerPrefix;
end else begin
s_state_d = DqtInfo;
end
end else begin
s_table_index_d = s_table_index_q + 1'b1;
end
end
end
end
DhtInfo: begin
if (s_byte_accept) begin
if ((byte_i[7:4] > 4'd1) || (byte_i[3:0] > 4'd3) || (s_remaining_q < 16'd18)) begin
s_err_d = 1'b1;
s_err_code_d = ErrorHuffman;
s_state_d = Error;
end else begin
s_dht_info_d = byte_i;
s_huff_counts_d = '0;
s_table_index_d = 7'd0;
s_huff_values_d = 9'd0;
s_remaining_d = s_remaining_q - 1'b1;
s_state_d = DhtCounts;
end
end
end
DhtCounts: begin
if (s_byte_accept) begin
s_huff_counts_d[s_table_index_q[3:0]] = byte_i;
s_huff_values_d = s_huff_values_q + 9'(byte_i);
s_remaining_d = s_remaining_q - 1'b1;
if (s_table_index_q == 7'd15) begin
if ((s_huff_values_q + 9'(byte_i) == 9'd0) ||
(s_huff_values_q + 9'(byte_i) > 9'd256) ||
(s_remaining_q - 1'b1 < 16'(s_huff_values_q + 9'(byte_i)))) begin
s_err_d = 1'b1;
s_err_code_d = ErrorHuffman;
s_state_d = Error;
end else begin
s_huff_len_d = 5'd1;
s_huff_code_d = 16'd0;
s_state_d = DhtAdvance;
end
end else begin
s_table_index_d = s_table_index_q + 1'b1;
end
end
end
DhtAdvance: begin
if (s_huff_values_q == 9'd0) begin
if (s_remaining_q == 16'd0) begin
s_state_d = MarkerPrefix;
end else begin
s_state_d = DhtInfo;
end
end else if (s_huff_len_q > 5'd16) begin
s_err_d = 1'b1;
s_err_code_d = ErrorHuffman;
s_state_d = Error;
end else if (s_huff_counts_q[s_huff_len_q-1'b1] != 8'd0) begin
s_huff_len_remaining_d = s_huff_counts_q[s_huff_len_q-1'b1];
s_state_d = DhtValues;
end else begin
s_huff_code_d = s_huff_code_q << 1;
s_huff_len_d = s_huff_len_q + 1'b1;
end
end
DhtValues: begin
if (s_byte_accept) begin
table_kind_o = (s_dht_info_q[7:4] != 4'd0) ?
(4'd8 + s_dht_info_q[3:0]) :
(4'd4 + s_dht_info_q[3:0]);
table_index_o = byte_i;
table_data_o = {11'd0, s_huff_len_q, s_huff_code_q};
table_write_o = 1'b1;
s_huff_code_d = s_huff_code_q + 1'b1;
s_huff_values_d = s_huff_values_q - 1'b1;
s_huff_len_remaining_d = s_huff_len_remaining_q - 1'b1;
s_remaining_d = s_remaining_q - 1'b1;
if (s_huff_values_q == 9'd1) begin
if (s_remaining_q == 16'd1) begin
s_state_d = MarkerPrefix;
end else begin
s_state_d = DhtInfo;
end
end else if (s_huff_len_remaining_q == 8'd1) begin
s_huff_code_d = (s_huff_code_q + 1'b1) << 1;
s_huff_len_d = s_huff_len_q + 1'b1;
s_state_d = DhtAdvance;
end
end
end
SofData: begin
if (s_byte_accept) begin
s_remaining_d = s_remaining_q - 1'b1;
unique case (s_payload_index_q)
16'd0: begin
if (byte_i != 8'd8) begin
s_err_d = 1'b1;
s_err_code_d = ErrorPrecision;
s_state_d = Error;
end
end
16'd1: s_height_d[15:8] = byte_i;
16'd2: s_height_d[7:0] = byte_i;
16'd3: s_width_d[15:8] = byte_i;
16'd4: s_width_d[7:0] = byte_i;
16'd5: begin
if ((byte_i != 8'd1) && (byte_i != 8'd3)) begin
s_err_d = 1'b1;
s_err_code_d = ErrorSampling;
s_state_d = Error;
end else begin
s_component_cnt_d = byte_i[1:0];
end
end
default: begin
if (((s_payload_index_q - 16'd6) % 3) == 0) begin
s_component_id_d[s_component_index] = byte_i;
end else if (((s_payload_index_q - 16'd6) % 3) == 1) begin
s_component_factor_d[s_component_index] = byte_i;
end else if (byte_i > 8'd3) begin
s_err_d = 1'b1;
s_err_code_d = ErrorSampling;
s_state_d = Error;
end else begin
s_quant_table_d[s_component_index] = byte_i[1:0];
end
end
endcase
s_payload_index_d = s_payload_index_q + 1'b1;
if ((s_remaining_q == 16'd1) && (s_state_d != Error)) begin
if ((s_width_d == 16'd0) || (s_height_d == 16'd0) ||
(s_payload_index_q + 1'b1 != 16'(6 + (3 * s_component_cnt_q))) ||
((s_component_cnt_q == 2'd1) && (s_component_factor_d[0] != 8'h11)) ||
((s_component_cnt_q == 2'd3) &&
!((s_component_factor_d[0] == 8'h11) ||
(s_component_factor_d[0] == 8'h21) ||
(s_component_factor_d[0] == 8'h22))) ||
((s_component_cnt_q == 2'd3) &&
((s_component_factor_d[1] != 8'h11) ||
(s_component_factor_d[2] != 8'h11)))) begin
s_err_d = 1'b1;
s_err_code_d = ErrorLength;
s_state_d = Error;
end else begin
s_state_d = MarkerPrefix;
end
end
end
end
DriData: begin
if (s_byte_accept) begin
if (s_remaining_q == 16'd2) begin
s_restart_interval_d[15:8] = byte_i;
end else if (s_remaining_q == 16'd1) begin
s_restart_interval_d[7:0] = byte_i;
s_state_d = MarkerPrefix;
end else begin
s_err_d = 1'b1;
s_err_code_d = ErrorLength;
s_state_d = Error;
end
s_remaining_d = s_remaining_q - 1'b1;
end
end
SosData: begin
if (s_byte_accept) begin
s_remaining_d = s_remaining_q - 1'b1;
if (s_payload_index_q == 16'd0) begin
if (byte_i != {6'd0, s_component_cnt_q}) begin
s_err_d = 1'b1;
s_err_code_d = ErrorSampling;
s_state_d = Error;
end
end else if (s_payload_index_q <= (2 * s_component_cnt_q)) begin
if (s_payload_index_q[0]) begin
if (byte_i != s_component_id_q[s_sos_component_index]) begin
s_err_d = 1'b1;
s_err_code_d = ErrorSampling;
s_state_d = Error;
end
end else if ((byte_i[7:4] > 4'd3) || (byte_i[3:0] > 4'd3)) begin
s_err_d = 1'b1;
s_err_code_d = ErrorHuffman;
s_state_d = Error;
end else begin
s_dc_table_d[s_sos_component_index] = byte_i[5:4];
s_ac_table_d[s_sos_component_index] = byte_i[1:0];
end
end else if (s_payload_index_q == (1 + (2 * s_component_cnt_q))) begin
s_sos_ss_d = byte_i;
end else if (s_payload_index_q == (2 + (2 * s_component_cnt_q))) begin
s_sos_se_d = byte_i;
end else if (s_payload_index_q == (3 + (2 * s_component_cnt_q))) begin
if ((s_sos_ss_q != 8'd0) || (s_sos_se_q != 8'd63) || (byte_i != 8'd0) ||
(s_remaining_q != 16'd1)) begin
s_err_d = 1'b1;
s_err_code_d = ErrorProcess;
s_state_d = Error;
end else begin
table_commit_o = 1'b1;
s_state_d = HeaderReady;
end
end else begin
s_err_d = 1'b1;
s_err_code_d = ErrorLength;
s_state_d = Error;
end
s_payload_index_d = s_payload_index_q + 1'b1;
end
end
HeaderReady: begin
if (header_ready_i) begin
s_state_d = Entropy;
end
end
Entropy: begin
end
Error: begin
end
default: s_state_d = Error;
endcase
end
end
dffr #(
.DATA_WIDTH(5)
) u_state_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_state_d),
.dat_o (s_state_bits_q)
);
dffr #(
.DATA_WIDTH(2)
) u_context_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_context_d),
.dat_o (s_context_q)
);
dffr #(
.DATA_WIDTH(8)
) u_marker_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_marker_d),
.dat_o (s_marker_q)
);
dffr #(
.DATA_WIDTH(8)
) u_len_high_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_len_high_d),
.dat_o (s_len_high_q)
);
dffr #(
.DATA_WIDTH(16)
) u_remaining_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_remaining_d),
.dat_o (s_remaining_q)
);
dffr #(
.DATA_WIDTH(16)
) u_payload_index_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_payload_index_d),
.dat_o (s_payload_index_q)
);
dffr #(
.DATA_WIDTH(16)
) u_width_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_width_d),
.dat_o (s_width_q)
);
dffr #(
.DATA_WIDTH(16)
) u_height_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_height_d),
.dat_o (s_height_q)
);
dffr #(
.DATA_WIDTH(2)
) u_component_cnt_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_component_cnt_d),
.dat_o (s_component_cnt_q)
);
dffr #(
.DATA_WIDTH(24)
) u_component_id_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_component_id_d),
.dat_o (s_component_id_q)
);
dffr #(
.DATA_WIDTH(24)
) u_component_factor_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_component_factor_d),
.dat_o (s_component_factor_q)
);
dffr #(
.DATA_WIDTH(6)
) u_quant_table_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_quant_table_d),
.dat_o (s_quant_table_q)
);
dffr #(
.DATA_WIDTH(6)
) u_dc_table_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_dc_table_d),
.dat_o (s_dc_table_q)
);
dffr #(
.DATA_WIDTH(6)
) u_ac_table_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_ac_table_d),
.dat_o (s_ac_table_q)
);
dffr #(
.DATA_WIDTH(16)
) u_restart_interval_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_restart_interval_d),
.dat_o (s_restart_interval_q)
);
dffr #(
.DATA_WIDTH(32)
) u_marker_cnt_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_marker_cnt_d),
.dat_o (s_marker_cnt_q)
);
dffr #(
.DATA_WIDTH(8)
) u_dqt_info_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_dqt_info_d),
.dat_o (s_dqt_info_q)
);
dffr #(
.DATA_WIDTH(7)
) u_table_index_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_table_index_d),
.dat_o (s_table_index_q)
);
dffr #(
.DATA_WIDTH(8)
) u_dht_info_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_dht_info_d),
.dat_o (s_dht_info_q)
);
dffr #(
.DATA_WIDTH(16 * 8)
) u_huff_counts_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_huff_counts_d),
.dat_o (s_huff_counts_q)
);
dffr #(
.DATA_WIDTH(5)
) u_huff_len_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_huff_len_d),
.dat_o (s_huff_len_q)
);
dffr #(
.DATA_WIDTH(9)
) u_huff_values_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_huff_values_d),
.dat_o (s_huff_values_q)
);
dffr #(
.DATA_WIDTH(8)
) u_huff_len_remaining_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_huff_len_remaining_d),
.dat_o (s_huff_len_remaining_q)
);
dffr #(
.DATA_WIDTH(16)
) u_huff_code_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_huff_code_d),
.dat_o (s_huff_code_q)
);
dffr #(
.DATA_WIDTH(8)
) u_sos_ss_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_sos_ss_d),
.dat_o (s_sos_ss_q)
);
dffr #(
.DATA_WIDTH(8)
) u_sos_se_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_sos_se_d),
.dat_o (s_sos_se_q)
);
dffr u_err_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_err_d),
.dat_o (s_err_q)
);
dffr #(
.DATA_WIDTH(5)
) u_err_code_dffr (
.clk_i (clk_i),
.rst_n_i(rst_n_i),
.dat_i (s_err_code_d),
.dat_o (s_err_code_q)
);
endmodule
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