[
    {
        "Name": "libaom (ABR Average bitrate)",
        "Description": "Use this preset only if file size and encoding time are more important factors than quality alone.",
        "First_pass": "-c:v libaom-av1 -b:v 2M -usage good -cpu-used 5 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -map 0:a:? -map_metadata 0",
        "Second_pass": "",
        "Supported_list": "",
        "Output_extension": "mkv",
        "Preinput_1": "",
        "Preinput_2": ""
    },
    {
        "Name": "libaom (Constant Q)",
        "Description": "Basic constant quality, if you do not need to achieve a fixed target file size",
        "First_pass": "-c:v libaom-av1 -crf 30 -b:v 0 -usage good -cpu-used 3 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -compression_level 5 -map 0:a:? -map_metadata 0",
        "Second_pass": "",
        "Supported_list": "",
        "Output_extension": "mkv",
        "Preinput_1": "",
        "Preinput_2": ""
    },
    {
        "Name": "libaom (Constrained Q)",
        "Description": "Basic constrained quality, The quality is determined by the -crf, and the bitrate limit by the -b:v where the bitrate MUST be non-zero.",
        "First_pass": "-c:v libaom-av1 -crf 30 -b:v 2000k -usage good -cpu-used 3 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -compression_level 5 -map 0:a:? -map_metadata 0",
        "Second_pass": "",
        "Supported_list": "",
        "Output_extension": "mkv",
        "Preinput_1": "",
        "Preinput_2": ""
    },
    {
        "Name": "libaom (Constrained Q, min/max bitrate)",
        "Description": "Basic constrained quality, The quality is determined by the -crf, and the bitrate limit by the -b:v and specify a minimum and maximum bitrate.",
        "First_pass": "-c:v libaom-av1 -minrate 500k -b:v 2000k -maxrate 2500k -usage good -cpu-used 2 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -compression_level 5 -map 0:a:? -map_metadata 0",
        "Second_pass": "",
        "Supported_list": "",
        "Output_extension": "mkv",
        "Preinput_1": "",
        "Preinput_2": ""
    },
    {
        "Name": "libaom (Constrained Q, min/max bitrate, for streaming)",
        "Description": "Like libaom encoder (Constrained Q, min/max bitrate) but intended use for the resulting file is streaming",
        "First_pass": "-c:v libaom-av1 -minrate 500k -b:v 2000k -maxrate 2500k -movflags -faststart -usage good -cpu-used 1 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -compression_level 2 -map 0:a:? -map_metadata 0",
        "Second_pass": "",
        "Supported_list": "",
        "Output_extension": "mp4",
        "Preinput_1": "",
        "Preinput_2": ""
    },
    {
        "Name": "libaom (Two-pass)",
        "Description": "2-pass, In order to create more efficient encodes when a particular target bitrate should be reached.",
        "First_pass": "-pass 1 -an -sn -c:v libaom-av1 -b:v 2M -usage good -cpu-used 4 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -f null",
        "Second_pass": "-pass 2 -c:v libaom-av1 -b:v 2M -usage good -cpu-used 4 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -compression_level 5 -map 0:a:? -map_metadata 0",
        "Supported_list": "",
        "Output_extension": "mkv",
        "Preinput_1": "",
        "Preinput_2": ""
    },
    {
        "Name": "libaom DVD",
        "Description": "For DVD resolution (720x576)",
        "First_pass": "-pass 1 -an -sn -c:v libaom-av1 -b:v 650k -usage good -cpu-used 4 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -f null",
        "Second_pass": "-pass 2 -c:v libaom-av1 -b:v 650k -usage good -cpu-used 4 -row-mt 1 -tiles 2x2 -g 250 -keyint_min 250 -pix_fmt yuv420p -map 0:v? -map_chapters 0 -map 0:s? -c:a: libopus -compression_level 5 -ac 2 -map 0:a:? -map_metadata 0",
        "Supported_list": "VOB",
        "Output_extension": "mkv",
        "Preinput_1": "",
        "Preinput_2": ""
    }
]