I want to create a simple media recorder / player with a small Kangaroo computer with Ubuntu 15.10. I'm using pix_record and it works well, but i'm not able to change the codecs settings with the "set" message.

For example, if I select the Photo jpeg codec (17) it gives me three properties

numprops 3
property framerate Float 0
property jpeg_quality Float 100
property jpeg_usefloat Float 1

When I'm sending "set jpeg_quality 50" to pix_record, it does not set the jpeg quality to 50...

Does anyone know what I'm doing wrong and how to change pix_record codec properties?