I don't know how this codec even reached version 3.0.0. What the heck.

Try it here.

The Pixel Exchange Format (PXF) v300 encodes audio or arbitrary binary data into fixed-width images. It combines deterministic transforms, forward error correction, and integrity checks so data can be reconstructed after common image degradation.

PXF supports encoding arbitrary binary data, with a dedicated audio mode for better compression.

Stereo is represented as mid/side image pairs, not left/right image channels.

Binary mode stores 2480 bytes per data row. Payload symbols are mapped into YCbCr/RGB blocks (2-bit Y + 1-bit Cb + 1-bit Cr), then protected with row LDPC parity and CRC32C.

Decoding supports:

• Full reconstruction from complete images
• Streaming/progressive audio decode
• Multi-image reassembly using header random bytes + image indices
• Source grouping by shared 4-byte random header salt

A dedicated UI is used when decoding audio mode, binary mode containing audio, and binary mode containing MIDI.

This repo contains various software needed to use the codec:

• The actual codec itself in codec/
• A Web UI in order to encode / decode files in app/
• A CLI to encode / decode files in the ternimal in cli/
• A custom JPEG decoder used by the Web UI and CLI in jpeg-decoder/

BSD 3-Clause License (BSD-3-Clause). See LICENSE.

Unless otherwise noted, all source code in this repository is licensed under the BSD 3-Clause License.