N64_JPEG Library Manual
(version Beta-2 : 1997.12.19)
Beta 2 version will be released soon..(will be distributed on BBS)
Table of Contents
1. Introduction
- 2. Library Functions
- 2.1 Encode
- 2.2 Decode
- 3. Microcode
- 3.1 The Decompression Microcode
- 3.1.1 Input Data
- 3.1.2 Microcode Start-up
- 3.1.3 Output Data
- 3.2 The Compression Microcode
- 3.2.1 Input Data
- 3.2.2 Microcode Start-up
- 3.2.3 Output Data
- 4. Tools
- 4.1 njpgCompress Tool
- 4.2 njpgMakeSlide Tool
- 4.3 rgb2u64 Tool
- 5. General Reference Material
- 5.1 N64 JPEG Compression Process
- 5.1.1 Convert to the YUV Format
- 5.1.2 Cull less Essential Data
- 5.1.3 DCT
- 5.1.4 Quantization
- 5.1.5 Zigzag Scanning
- 5.1.6 Entropy Encoding
- 5.2 Output data formats
- 5.2.1 Data from njpgMakeSlide Tool
- 5.2.2 Data from njpgCompress Tool
- 5.3 Quantization Table
- 5.4 Huffman Encoding Table
- 5.5 Programming Cautions
- 5.5.1 Image Quality
- 5.5.2 Data Form After Decompression