ConvertOnline

Image

Audio

Video

Document

Color

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

{
  "convert": "m4v-m4v",
  "multiple": true,
  "from": "m4v",
  "to": "m4v",
  "controls": [
    {
      "type": "number",
      "optional": true,
      "name": "vframes",
      "label": "Number of Video Frames",
      "range": {
        "min": 1,
        "max": 1000000
      },
      "desc": "Sets the number of video frames to output. Useful for trimming or extracting only part of the video. Leave blank to process all frames."
    },
    {
      "type": "number",
      "optional": true,
      "name": "framerate",
      "label": "Frame Rate (fps)",
      "range": {
        "min": 1,
        "max": 240
      },
      "desc": "Sets the video frame rate in frames per second. Common values are 24, 30, or 60."
    },
    {
      "type": "text",
      "optional": true,
      "name": "size",
      "label": "Frame Size (WxH)",
      "placeholder": "e.g., 1920x1080",
      "desc": "Specifies the video resolution. Example: 1920x1080 for Full HD, 1280x720 for HD. Leave blank to keep original resolution."
    },
    {
      "type": "dropdown",
      "optional": true,
      "name": "aspect_ratio",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "Original",
          "value": ""
        },
        {
          "label": "16:9",
          "value": "16:9"
        },
        {
          "label": "4:3",
          "value": "4:3"
        },
        {
          "label": "1.7777",
          "value": "1.7777"
        },
        {
          "label": "1.3333",
          "value": "1.3333"
        }
      ],
      "defaultValue": "",
      "desc": "Sets the display aspect ratio of the video. If left blank, the original aspect ratio is preserved."
    },
    {
      "type": "number",
      "optional": true,
      "name": "bits_per_raw_sample",
      "label": "Bits per Raw Sample",
      "range": {
        "min": 8,
        "max": 16
      },
      "desc": "Sets the bit depth per raw video sample. Common values are 8 (standard) or 10/12 for high-quality video."
    },
    {
      "type": "dropdown",
      "optional": true,
      "name": "video_codec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Copy Stream",
          "value": "copy"
        },
        {
          "label": "H.264",
          "value": "libx264"
        },
        {
          "label": "H.265/HEVC",
          "value": "libx265"
        }
      ],
      "defaultValue": "copy",
      "desc": "Selects the codec for the output video. Use 'copy' to avoid re-encoding and keep the original quality."
    },
    {
      "type": "text",
      "optional": true,
      "name": "timecode",
      "label": "Initial Timecode",
      "placeholder": "hh:mm:ss[:;.]ff",
      "desc": "Sets the starting timecode for the video. Useful for professional editing workflows."
    },
    {
      "type": "dropdown",
      "optional": true,
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "1-Pass",
          "value": 1
        },
        {
          "label": "2-Pass",
          "value": 2
        },
        {
          "label": "3-Pass",
          "value": 3
        }
      ],
      "defaultValue": 1,
      "desc": "Selects the encoding pass number. Multi-pass encoding improves bitrate distribution but takes longer."
    },
    {
      "type": "text",
      "optional": true,
      "name": "video_filters",
      "label": "Video Filters",
      "placeholder": "e.g., crop=1280:720:0:0",
      "desc": "Apply FFmpeg video filters, such as cropping, scaling, or rotating. Example: 'scale=1280:720'."
    },
    {
      "type": "text",
      "optional": true,
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "placeholder": "e.g., 1000k",
      "desc": "Sets the target video bitrate. Higher values improve quality but increase file size."
    },
    {
      "type": "number",
      "optional": true,
      "name": "audio_bitrate",
      "label": "Audio Bitrate (kbps)",
      "range": {
        "min": 32,
        "max": 320
      },
      "desc": "Sets the audio stream bitrate. Common values are 128 kbps for standard quality and 192–320 kbps for high quality."
    }
  ],
  "type": "video"
}