ConvertOnline

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1. Convert Online
2. Video Converters
3. MP4 to M4V

{
  "convert": "mp4-m4v",
  "multiple": true,
  "from": "mp4",
  "to": "m4v",
  "controls": [
    {
      "type": "text",
      "name": "frame_count",
      "label": "Number of Frames",
      "optional": true,
      "desc": "Limit the output video to a specific number of frames. Leave blank to convert the entire video. Example: 100 will only export the first 100 frames."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate (fps)",
      "options": [
        {
          "label": "15 fps",
          "value": "15"
        },
        {
          "label": "24 fps (Film)",
          "value": "24"
        },
        {
          "label": "30 fps (Standard)",
          "value": "30"
        },
        {
          "label": "60 fps (Smooth)",
          "value": "60"
        }
      ],
      "defaultValue": "30",
      "desc": "Sets the output video frame rate. Lower values reduce file size and motion smoothness, while higher values improve clarity for motion-heavy videos."
    },
    {
      "type": "text",
      "name": "resolution",
      "label": "Resolution (WxH)",
      "optional": true,
      "placeholder": "e.g. 1280x720",
      "desc": "Resize the video to a specific resolution. Must be in the format Width x Height (e.g. 1920x1080). Leave blank to retain original resolution."
    },
    {
      "type": "dropdown",
      "name": "aspect_ratio",
      "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": "Forces the aspect ratio of the output video. Useful when changing resolution or format."
    },
    {
      "type": "dropdown",
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "options": [
        {
          "label": "500 kbps (Low)",
          "value": "500k"
        },
        {
          "label": "1000 kbps (SD)",
          "value": "1000k"
        },
        {
          "label": "2000 kbps (HD)",
          "value": "2000k"
        },
        {
          "label": "4000 kbps (Full HD)",
          "value": "4000k"
        },
        {
          "label": "8000 kbps (High)",
          "value": "8000k"
        }
      ],
      "defaultValue": "2000k",
      "desc": "Sets the output video bitrate. Higher bitrates improve quality but increase file size. Choose based on your target resolution and quality needs."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "1-Pass (Fast)",
          "value": 1
        },
        {
          "label": "2-Pass (Better Quality)",
          "value": 2
        }
      ],
      "defaultValue": 1,
      "desc": "Choose encoding pass mode. Two-pass encoding improves bitrate distribution and overall quality but takes longer."
    }
  ],
  "note": "M4V is a video container format developed by Apple, very similar to MP4 but optimized for iTunes and Apple devices. This profile allows customization of bitrate, resolution, frame rate, and encoding pass. Subtitle or DRM features are not supported here.",
  "type": "video",
  "operation": "convert"
}