ConvertOnline

Image

Audio

Video

Document

Color

1. Convert Online
2. Video Converters
3. VOB to MKV

{
  "convert": "vob-mkv",
  "multiple": true,
  "from": "vob",
  "to": "mkv",
  "controls": [
    {
      "type": "number",
      "optional": true,
      "name": "vframes",
      "label": "Number of Video Frames",
      "range": {
        "min": 1,
        "max": 1000000
      },
      "unit": "frames",
      "desc": "Sets the number of video frames to output. Useful for cutting or limiting duration without re-encoding the entire file."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate",
      "options": [
        {
          "label": "23.976 fps (Film)",
          "value": "23.976"
        },
        {
          "label": "24 fps (Cinema)",
          "value": "24"
        },
        {
          "label": "25 fps (PAL)",
          "value": "25"
        },
        {
          "label": "29.97 fps (NTSC)",
          "value": "29.97"
        },
        {
          "label": "30 fps",
          "value": "30"
        },
        {
          "label": "60 fps",
          "value": "60"
        }
      ],
      "defaultValue": "25",
      "desc": "Sets the output video frame rate. A higher frame rate results in smoother motion but increases file size."
    },
    {
      "type": "text",
      "optional": true,
      "name": "size",
      "label": "Frame Size",
      "placeholder": "e.g., 1920x1080",
      "desc": "Sets the output video resolution (width x height). Leave blank to keep the original resolution."
    },
    {
      "type": "dropdown",
      "name": "aspect_ratio",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "Original",
          "value": "original"
        },
        {
          "label": "4:3",
          "value": "4:3"
        },
        {
          "label": "16:9",
          "value": "16:9"
        },
        {
          "label": "1.3333",
          "value": "1.3333"
        },
        {
          "label": "1.7777",
          "value": "1.7777"
        }
      ],
      "defaultValue": "original",
      "desc": "Sets the display aspect ratio. Use this to correct stretched or squashed video."
    },
    {
      "type": "number",
      "optional": true,
      "name": "bits_per_raw_sample",
      "label": "Bits per Raw Sample",
      "range": {
        "min": 8,
        "max": 16
      },
      "unit": "bits",
      "desc": "Sets the number of bits per raw sample. Higher values increase quality but also file size."
    },
    {
      "type": "checkbox",
      "name": "disable_video",
      "label": "Disable Video",
      "defaultValue": false,
      "desc": "Removes the video stream from the output, keeping only audio or other data."
    },
    {
      "type": "dropdown",
      "name": "video_codec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Copy (No Re-encode)",
          "value": "copy"
        },
        {
          "label": "H.264",
          "value": "libx264"
        },
        {
          "label": "H.265 / HEVC",
          "value": "libx265"
        },
        {
          "label": "VP9",
          "value": "libvpx-vp9"
        }
      ],
      "defaultValue": "copy",
      "desc": "Sets the video codec to use. 'Copy' preserves original quality without re-encoding."
    },
    {
      "type": "text",
      "optional": true,
      "name": "timecode",
      "label": "Initial Timecode",
      "placeholder": "hh:mm:ss:ff",
      "desc": "Sets the starting timecode for the video, useful for broadcast workflows."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "1-Pass (Fast)",
          "value": 1
        },
        {
          "label": "2-Pass (Better Quality)",
          "value": 2
        },
        {
          "label": "3-Pass (High Quality)",
          "value": 3
        }
      ],
      "defaultValue": 1,
      "desc": "Number of encoding passes. More passes improve quality but take longer."
    },
    {
      "type": "text",
      "optional": true,
      "name": "video_filters",
      "label": "Video Filters",
      "placeholder": "e.g., scale=1280:720",
      "desc": "FFmpeg video filters to apply (e.g., scaling, cropping, deinterlacing)."
    },
    {
      "type": "text",
      "optional": true,
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "placeholder": "e.g., 2M",
      "desc": "Sets the target video bitrate (e.g., 2M for 2 Mbps). Higher bitrates improve quality but increase file size."
    },
    {
      "type": "checkbox",
      "name": "disable_data",
      "label": "Disable Data Streams",
      "defaultValue": false,
      "desc": "Removes data streams such as subtitles or metadata from the output."
    }
  ],
  "type": "video"
}