how to output good quality jpg?

[freesunshine]

output jpg files with code below:

Code: Select all

const char * const vlc_args[] = { //"-I", "dumy", // No special interface "--ignore-config", // Don't use VLC's config "--plugin-path=./plugins", "--live-caching=50", "--no-video-title-show", "--video-filter=scene", "--vout=dummy", "--scene-format=jpg", "--scene-ratio=1", "--scene-path=C:\\" };

but the jpg quality is very bad. how can i output good quality jpg file?