VidCompiler

Video hosting is free and unmetered; file hosting is not. So the file becomes the video. The archive is packed, error-corrected, written into the pixels of 1080p frames, encoded to H.264 and uploaded unlisted. Decoding runs the same road backwards and checks the result against a CRC.

The frame format was chosen by measurement rather than theory. Probe uploads through real YouTube found that chroma survives far more density than luma does — the previous version failed for exactly one reason, three bits per block on the luma plane. The format that shipped writes 2 bits per 4x4 block on Y and 3 bits per 4x4 block on Cb and Cr: 56,100 bytes a frame at a measured bit error rate of 1.1e-05.

Reed-Solomon RS(255,215) covers what the transcode still damages, and the header is written three independent ways — into the pixels, into the audio track as 4-FSK tones, and into the video description — so a decoder can recover the parameters even if two of the three are gone.

Archives bigger than one video shard across several and upload concurrently, which measured 2.14x faster than a single stream. A file manager sits on top: folders, upload, preview, rename, search. The bytes live on YouTube and the index is a few hundred kilobytes on disk. Everything is sealed with AES-256-GCM before it leaves the machine, so what is stored is neither your contents nor your filenames.