Backend Module¶
backend module¶
MyHDL implementation of Backend Module
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jpegenc.subblocks.backend.backend.backend¶ Constants:
width_data : width of the input data width_addr : width of the address accessed by a module width_runlength : width of the runlength value width_size : width of the size value width_out_byte : width of output byte width_num_bytes : max encoded bytes width
backend_soft module¶
software prototype for backend module
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jpegenc.subblocks.backend.backend_soft.backend_ref(block, prev_dc_0, prev_dc_1, prev_dc_2, register, color_component, pointer)¶ backend reference module
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jpegenc.subblocks.backend.backend_soft.build_huffman_rom_tables(csvfile)¶ build huffman tables
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jpegenc.subblocks.backend.backend_soft.build_rom_tables(csvfile)¶ build huffman tables
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jpegenc.subblocks.backend.backend_soft.bytestuffer(block)¶ bytestuffer reference module
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jpegenc.subblocks.backend.backend_soft.divider(block, color_component)¶ divider reference module
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jpegenc.subblocks.backend.backend_soft.divider_ref(dividend, divisor)¶ software implementation of divider
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jpegenc.subblocks.backend.backend_soft.entropy_encode(amplitude)¶ Model of the entropy encoding
- Arguments:
- amplitude (int): given an integer generate the encoding
- Returns:
- amplitude_ref: size_ref:
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jpegenc.subblocks.backend.backend_soft.huffman_final(register, pointer)¶ divide huffman code into bytes
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jpegenc.subblocks.backend.backend_soft.huffman_ref(runlength_block, amplitude_block, size_block, color_component, register, pointer)¶ reference model for huffman encoder
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jpegenc.subblocks.backend.backend_soft.runlength(block, color_component, prev_dc_0, prev_dc_1, prev_dc_2)¶ reference for runlength encoder module
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jpegenc.subblocks.backend.backend_soft.table_huff_gen(filename, base)¶ huffman table generator