- Extension: mux
- Samples: http://www.mplayerhq.hu/MPlayer/samples/game-formats/chaoscontrol-mux/
MUX is a full motion video format used in a small number of computer games. The format packages raw, unsigned, 8-bit PCM audio along with a custom video coding format.
All multi-byte numbers are little endian. The file format is laid out as follows:
bytes 0-27 unknown bytes 28-29 video width bytes 30-31 video height bytes 32-16383 frame offset table
Each frame offset is 32 bits. There is enough space in the chunk offset table for 4087 media chunks. The top 2 bits of each offset always appear to be 1 (so the top byte of the chunk is always 0xC0), so these are probably flags of some sort. The last entry in the table is all 1s (0xFFFFFFFF) and the remainder of the table is all 0s.
Frames contain 1 or more chunks, each of which are formatted in a manner that is reminiscent of the Autodesk FLIC format:
bytes 0-1 chunk type bytes 2-5 chunk size, not including this 6-byte header bytes 6.. chunk payload
Known chunk types appear to include:
0007 unsigned, 8-bit PCM audio 0070 apparently a palette chunk, 0x300 (768) bytes, and each component is 8 bits (not 6 bits, like VGA palettes are normally stored) 006F video chunk 0005 frame count: 2-byte payload contains frame number
The corresponding video coding format is presently unknown.
Games That Use MUX
These games are known to use MUX files for FMV: