Saving snapshots as JPEG is broken

This is probably due to broken contribs:

[0x103007ef0] main encoder debug: looking for encoder module: 12 candidates
[0x103007ef0] avcodec encoder debug: libavcodec already initialized
[mjpeg @ 0x10304ae20] Either both buffer size and max rate or neither must be specified
[0x103007ef0] avcodec encoder error: cannot open encoder
[0x103007ef0] main encoder debug: no encoder module matching "any" could be loaded
[0x103007ef0] main encoder debug: TIMER module_need() : 98,983 ms - Total 98,983 ms / 1 intvls (Avg 98,983 ms)
[0x103007ef0] main encoder error: no suitable encoder module for fourcc `jpeg'.
VLC probably does not support this image format.
[0x1028a5af0] main video output error: Failed to convert image for snapshot