GBVideoPlayer

GBVideoPlayer is a technical demonstration that pushes the Game Boy Color's hardware to its limits by enabling it to play full-motion color video with synchronized music. It showcases innovative hardware hacking techniques to overcome the console's severe memory and processing constraints, achieving what was previously thought impossible on the 8-bit platform.

Key Features

• Hardware LCD Controller Hacking — Manipulates the Game Boy Color's LCD controller to bypass its tile-based graphics system and display video frames.
• Custom Video Encoding Pipeline — Uses a two-stage encoder (Photoshop batch script + Python) to compress video into a format the Game Boy can process.
• Cycle-Accurate Z80 Assembly — The player core is written in highly optimized Z80 assembly with precise CPU cycle counting for real-time playback.
• Compact Music Format — Music is stored in a custom binary format converted from an OpenMPT-style textual representation for efficient playback.
• Frame Repetition Compression — Encoder can skip similar frames by repeating a single frame up to 127 times to save ROM space.

Philosophy

The project embraces extreme optimization and hardware exploitation to achieve seemingly impossible results on constrained retro hardware, following in the spirit of demoscene projects like 8088 Corruption.