Features

• Introduce --temp-frame-format to select between JPG and PNG
• Introduce --temp-frame-quality to reduce size of temporary frames
• Add support for video encoders h264_nvenc and hevc_nvenc
• Add --output prefix to --video-encoder and --video-quality
• Normalize quality arguments to a 0 to 100 range

Bugfixes

• Prevent processing if frames have not been extracted
• Enhance a larger box around the face to prevent unwanted borders