Run this FFmpeg command:
Example with gbafix (after building a skeleton ROM): avi to gba video
avi2gba prepped_video.avi video.bin Then manually inject audio. Use gbafix or a simple Python script to wrap the raw video into a GBA executable header. Run this FFmpeg command: Example with gbafix (after
# Create a minimal GBA ROM header dd if=/dev/zero of=video_rom.gba bs=1 count=32000 echo -ne "GBA VIDEO\x00\x00\x00\x00\x00\x00\x00\x00\x96\x00\x80\x00\x00\x00\x00\x00" | dd of=video_rom.gba bs=1 seek=0 conv=notrunc # Append the video binary cat video.gbm >> video_rom.gba gbafix video_rom.gba Or use (Game Boy File System) to embed the GBM as a file that a GBA media player (like GBA Media Player) can load. The GBA was not designed for video playback
The GBA was not designed for video playback. The process requires extreme compression, results in very low quality (postage-stamp size, ~15 frames per second, mono audio), and is primarily a hobbyist/retro-computing curiosity. The Complete Guide: Converting AVI to GBA Video 1. Why This is Difficult (The Technical Reality) The Game Boy Advance has a 240x160 pixel screen (2.9 inches), a 16.8 MHz ARM7 CPU, and 256KB of video RAM. Standard video requires megabytes per second; the GBA can only read data from its cartridge slot at a few megabytes per second at best.