---
name: "gtkspu"
section: "1"
platform: "linux"
package: "gopchop"
version: "1.1.8-7+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gtkspu"
---

# gtkspu(1)

Decodes and displays MPEG2 Sub Picture Unit (SPU) streams

## NAME

gtkspu - Decodes and displays MPEG2 Sub Picture Unit (SPU) streams

## SYNOPSIS

**gtkspu** { *file* } \[ *which* \]

## DESCRIPTION

**gtkspu** decodes and displays MPEG2 Sub Picture Unit (SPU) streams. SPU streams normally occur in DVD .VOB files. Examples of SPUs are overlays, subtitles, and DVD menus.

Most likely you will use the **mpegcat** utility to extract the SPU streams. Instructions for extraction of SPU streams can be found in the man page for **mpegcat**.

Given an SPU file "dump.spu" extracted with **mpegcat**, you can run **gtkspu** multiple times to view its contents:

```
        $ gtkspu dump.spu 0
        $ gtkspu dump.spu 1
        $ gtkspu dump.spu 2
        ...
```

## AUTHOR

Kees Cook, \<kees@outflux.net\>

## SEE ALSO

[mpegcat(1)](/mpegcat/1.md), [gopchop(1)](/gopchop/1.md)