Bad UEFI

Another day, another Bad Apple project.

Video and audio are loaded from \video.uefiv and \audio.uefia respectively. (when running in QEMU esp/ is the root directory)

Note: You need to download and convert the video yourself. An example audio track is included (sample-audio.txt) but you still need to convert it.

How to use the encoder

The encoder is written in NodeJS and can be found in the encoder directory. First install the dependencies with npm i.

To convert a video run:

node encoder encode <input file> <output file> -w <out width> -h <out height>

A sane default mode is g8c (graphic mode, 8 bit depth, color) For more info on the modes and framerate see the UEFIV readme.

To convert an audio track run:

node encoder audio <input file> <output file> -d <delay> -b <bpm>

Building / running

The UEFI source is written in Rust and can be found in the src directory.

On real hardware

Run cargo build --release then copy the .efi file to /efi/boot/bootx64.efi on a FAT32 partition and boot it.

QEMU

You can also run it inside QEMU.

1. Install QEMU, KVM and OVMF

2. Copy /usr/share/OVMF/x64/OVMF_CODE.fd and /usr/share/OVMF/x64/OVMF_VARS.fd to the files directory

3. Run ./run-qemu.sh

4. Profit???

TODO

• Implement t4 color mode in the encoder
• Implement t4 and g24 color modes in the "bootloader"
• Document the audio format