To change the brightness and contrast of front camera gst-launch v4l2src device=/dev/video1 ! ffmpegcolorspace ! videobalance brightness=0.5 contrast=1.2 ! autovideosink The "brightness" property Allowed values: [-1,1] Default value: 0 The "contrast" property Allowed values: [0,2] Default value: 1
WARNING: erroneous pipeline: no element "videobalance"