ConvertOnline

Image

Audio

Video

Document

Color

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

{
  "convert": "mpeg-m4v",
  "multiple": true,
  "from": "mpeg",
  "to": "m4v",
  "controls": [
    {
      "type": "number",
      "optional": true,
      "name": "vframes",
      "label": "Number of Video Frames",
      "range": {
        "min": 1,
        "max": 1000000
      },
      "desc": "Limits the output to a specific number of video frames. Useful for creating previews or trimming clips without re-encoding the whole video."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate (fps)",
      "options": [
        {
          "label": "23.976 fps (Film)",
          "value": "23.976"
        },
        {
          "label": "24 fps",
          "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": "30",
      "desc": "Sets the number of frames per second. A higher frame rate makes motion smoother but increases file size."
    },
    {
      "type": "text",
      "name": "size",
      "label": "Frame Size (WxH)",
      "placeholder": "e.g., 1920x1080",
      "desc": "Specifies the output video resolution. Use the format WidthxHeight (e.g., 1280x720). If left blank, the original size is preserved."
    },
    {
      "type": "dropdown",
      "name": "aspect",
      "label": "Aspect Ratio",
      "options": [
        {
          "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": "16:9",
      "desc": "Sets the display aspect ratio of the video. Changing this without resizing may distort the image."
    },
    {
      "type": "number",
      "optional": true,
      "name": "bits_per_raw_sample",
      "label": "Bits Per Raw Sample",
      "range": {
        "min": 8,
        "max": 16
      },
      "defaultValue": 8,
      "desc": "Sets the number of bits used to store each raw video sample. Higher values may improve quality but increase file size."
    },
    {
      "type": "dropdown",
      "name": "video_codec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Default (libx264)",
          "value": "libx264"
        },
        {
          "label": "Copy Original",
          "value": "copy"
        }
      ],
      "defaultValue": "libx264",
      "desc": "Forces the use of a specific video codec. Use 'copy' to avoid re-encoding."
    },
    {
      "type": "text",
      "optional": true,
      "name": "timecode",
      "label": "Initial Timecode",
      "placeholder": "hh:mm:ss:ff",
      "desc": "Sets the starting SMPTE timecode for the output video. Useful for editing workflows."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Pass Number",
      "options": [
        {
          "label": "1-Pass (Fast)",
          "value": 1
        },
        {
          "label": "2-Pass (Better Quality)",
          "value": 2
        }
      ],
      "defaultValue": 1,
      "desc": "Selects the number of encoding passes. Two-pass encoding provides better quality at the same bitrate but takes longer."
    },
    {
      "type": "number",
      "optional": true,
      "name": "video_bitrate",
      "label": "Video Bitrate (kbps)",
      "range": {
        "min": 100,
        "max": 50000
      },
      "defaultValue": 4000,
      "desc": "Sets the target video bitrate in kilobits per second. Higher values improve quality but increase file size."
    }
  ],
  "type": "video"
}