processing.run("gdal:cliprasterbymasklayer",
        {'INPUT': rasterToClip,
        'MASK': vectorMask,
        'NODATA': -1,
        'ALPHA_BAND': True,
        'CROP_TO_CUTLINE': True,
        'KEEP_RESOLUTION': True,
        'OPTIONS': "",
        'DATA_TYPE': 5,
        'OUTPUT': outputFilename})