FFMpeg-Compressor: Add lossless parameter

FFMpeg-Compressor/README.md

@@ -20,6 +20,7 @@ Python utility uses ffmpeg to compress Visual Novel Resources
 
 #### IMAGE section
 * Extension - Required image file extension. It supports: `.apng`, `.avif`, `.bmp`, `.tga`, `.tiff`, `.dds`, `.svg`, `.webp`, `.jpg/.jpeg`, `.png`
+* Lossless - Enables lossless copression for supported formats. With this quality parameter means quality of compression. (default: `false`)
 * Quality - Quality level of images. Values range: `0-100` (100 - best quality, 0 - worst quality)
 
 #### VIDEO section

FFMpeg-Compressor/ffmpeg-comp.toml

@@ -10,6 +10,7 @@ BitRate = "320k"
 
 [IMAGE]
 Extension = "avif"
+Lossless = false
 Quality = 80
 
 [VIDEO]

FFMpeg-Compressor/modules/compressor.py

@@ -77,6 +77,7 @@ def compress_image(folder, file, target_folder, extension):
         printer.files(file, os.path.splitext(file)[0], extension, f"{quality}%")
         image.save(f"{target_folder}/{os.path.splitext(file)[0]}.{extension}",
                    optimize=True,
+                   lossless=configloader.config['IMAGE']['Lossless'],
                    quality=quality)
     return f'{target_folder}/{os.path.splitext(file)[0]}.{extension}'