ConvertOnline

Image

Audio

Video

Document

Color

1. Convert Online
2. Video Converters
3. VOB to M4V

{
  "convert": "vob-m4v",
  "multiple": true,
  "from": "vob",
  "to": "m4v",
  "controls": [
    {
      "type": "number",
      "optional": true,
      "name": "vframes",
      "label": "Number of Video Frames",
      "range": {
        "min": 1,
        "max": 100000
      },
      "desc": "Limits the output to a specific number of video frames. Leave blank to convert the entire video."
    },
    {
      "type": "number",
      "optional": true,
      "name": "r",
      "label": "Frame Rate (fps)",
      "range": {
        "min": 1,
        "max": 240
      },
      "desc": "Sets the output video frame rate. Higher frame rates make motion smoother but increase file size."
    },
    {
      "type": "text",
      "optional": true,
      "name": "s",
      "label": "Frame Size",
      "placeholder": "e.g., 1920x1080",
      "desc": "Sets the output resolution (width x height). Use a standard size like 1280x720 or leave blank to keep the original."
    },
    {
      "type": "dropdown",
      "name": "aspect",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "Default (Keep Original)",
          "value": ""
        },
        {
          "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": "",
      "desc": "Sets the display aspect ratio for the output video."
    },
    {
      "type": "number",
      "optional": true,
      "name": "bits_per_raw_sample",
      "label": "Bits per Raw Sample",
      "range": {
        "min": 8,
        "max": 16
      },
      "desc": "Sets the number of bits per raw sample (bit depth) for each color channel. Common values are 8 or 10."
    },
    {
      "type": "checkbox",
      "name": "vn",
      "label": "Disable Video",
      "defaultValue": false,
      "desc": "Removes the video track from the output file, keeping only the audio."
    },
    {
      "type": "dropdown",
      "name": "vcodec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Default (H.264)",
          "value": "libx264"
        },
        {
          "label": "Copy Original",
          "value": "copy"
        },
        {
          "label": "MPEG-4",
          "value": "mpeg4"
        }
      ],
      "defaultValue": "libx264",
      "desc": "Specifies the video codec to use for encoding. 'Copy' will not re-encode the video."
    },
    {
      "type": "text",
      "optional": true,
      "name": "timecode",
      "label": "Initial Timecode",
      "placeholder": "hh:mm:ss[:;.]ff",
      "desc": "Sets the starting timecode of the output video in SMPTE format."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Pass Number",
      "options": [
        {
          "label": "1-Pass (Faster)",
          "value": 1
        },
        {
          "label": "2-Pass (Better Quality)",
          "value": 2
        },
        {
          "label": "3-Pass (Max Quality)",
          "value": 3
        }
      ],
      "defaultValue": 1,
      "desc": "Selects the encoding pass. Multi-pass encoding improves bitrate allocation for better quality."
    },
    {
      "type": "text",
      "optional": true,
      "name": "vf",
      "label": "Video Filters",
      "placeholder": "e.g., scale=1280:720",
      "desc": "Applies FFmpeg video filters. Examples: crop, scale, rotate. Multiple filters can be chained with commas."
    },
    {
      "type": "number",
      "optional": true,
      "name": "b_v",
      "label": "Video Bitrate (kbps)",
      "range": {
        "min": 100,
        "max": 50000
      },
      "desc": "Sets the target video bitrate in kilobits per second. Higher values improve quality but increase file size."
    },
    {
      "type": "checkbox",
      "name": "dn",
      "label": "Disable Data",
      "defaultValue": false,
      "desc": "Removes additional data streams (subtitles, metadata) from the output."
    },
    {
      "type": "number",
      "optional": true,
      "name": "b_a",
      "label": "Audio Bitrate (kbps)",
      "range": {
        "min": 32,
        "max": 320
      },
      "desc": "Sets the output audio bitrate in kilobits per second."
    }
  ],
  "note": "M4V is similar to MP4 but may contain Apple-specific DRM or metadata. This profile supports common video encoding options from FFmpeg such as frame rate, resolution, aspect ratio, bitrate, and codec selection. Advanced users can also apply filters or multi-pass encoding for better quality.",
  "type": "video"
}