Smacker video
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| Filename extension | .smk |
|---|---|
| Type code | Smk2 |
| Developed by | RAD Game Tools |
| Type of format | video codec |
| Container for | Smacker |
Smacker video is a video file format (with the .SMK file extension) developed by RAD Game Tools and is often used in computer games. Smacker video supports only 256 colors, and includes transparency support.
The compression rate can reach 1:12, but at the loss of quality (pixelation).
While being a palette-based format, which is inherently limited to have not more than 256 colors in each frame, Smacker videos may still contain more colors in total due to "palette rotation" whereby the next frame may have a different palette. This usually results in SMK files that look better if the source video had more than 256 colors.
New versions of the Smacker file format also introduce Bink audio codec support.
RAD's format for video at higher color depths is Bink video.
Blizzard used this format for the cinematic videos seen in its famous game, Starcraft.
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