Comment # 18 on bug 1103008 from Dave Plater

It was incorrect of me to state that the main distribution's libavcodec can
encode mpeg2 out of the box, I see that the decoder was enabled but they forgot
to enable the encoder. I've corrected this and submitted it. The error that you
get should be slightly different to the original one:

DVDStyler v3.0.4
Linux 4.12.14-lp150.12.7-default x86_64
FFmpeg: libavformat 57.83.100, libavcodec 57.107.100, libavutil 55.78.100
Prepare
Cleaning temporary directory
Search for transcoded files in cache
=============================================================================
            | Input size | Output duration | Bitrate  | Estimated output size
VMGM menu 1 |            |                 | 8.0 Mb/s | 0.1 MB
Title 1
  vob       | 12.3 MB    | 0:59.998 sec    |          | 12.3 MB
Total       |            | 0:59.998 sec    |          | 12.4 MB
=============================================================================
Generating menu 1 of 1
Create menu MPEG
Frame count of menu: 15
Video codec not found
Error creation of menu

To solve this zypper in --from packman repo libavcodec57 and accept all the
changes.