[
    {
        "compressed_video_file": "x264_crf-51_preset-ultrafast.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "ultrafast"
    },
    {
        "compressed_video_file": "x264_crf-16_preset-veryslow.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 16,
        "preset_speed": "veryslow"
    },
    {
        "compressed_video_file": "x264_crf-18_preset-ultrafast.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 18,
        "preset_speed": "ultrafast"
    },
    {
        "compressed_video_file": "x264_crf-18_preset-veryslow.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 18,
        "preset_speed": "veryslow"
    },
    {
        "compressed_video_file": "x264_crf-50_preset-veryslow.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 50,
        "preset_speed": "veryslow"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-fast.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "fast"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-faster.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "faster"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-medium.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "medium"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-slow.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "slow"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-slower.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "slower"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-superfast.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "superfast"
    },
    {
        "compressed_video_file": "x264_crf-51_preset-veryfast.mkv",
        "original_video_file": "../x264_crf-5_preset-veryslow.mkv",
        "crf": 51,
        "preset_speed": "veryfast"
    }
]