ConvertOnline

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

{
  "convert": "m4v-avi",
  "multiple": true,
  "from": "m4v",
  "to": "avi",
  "controls": [
    {
      "type": "number",
      "optional": true,
      "name": "vframes",
      "label": "Number of Video Frames",
      "range": {
        "min": 1,
        "max": 100000
      },
      "desc": "Sets the number of video frames to output. Useful if you only want to convert a portion of the video. Leave blank to convert the full video."
    },
    {
      "type": "number",
      "optional": true,
      "name": "framerate",
      "label": "Frame Rate (fps)",
      "range": {
        "min": 1,
        "max": 240
      },
      "defaultValue": 30,
      "desc": "Sets the video frame rate. Common values are 24 (cinema), 30 (standard), and 60 (smooth motion)."
    },
    {
      "type": "text",
      "optional": true,
      "name": "size",
      "label": "Frame Size",
      "placeholder": "e.g., 1920x1080 or 1280x720",
      "desc": "Sets the output resolution. Enter as widthxheight (e.g., 1920x1080). Leave blank to keep the original size."
    },
    {
      "type": "dropdown",
      "optional": true,
      "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"
        }
      ],
      "desc": "Sets the aspect ratio of the video. Defaults to the source ratio if not specified."
    },
    {
      "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. Higher values can improve quality but increase file size."
    },
    {
      "type": "dropdown",
      "optional": true,
      "name": "vcodec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Copy Original",
          "value": "copy"
        },
        {
          "label": "MPEG-4",
          "value": "mpeg4"
        },
        {
          "label": "H.264",
          "value": "libx264"
        },
        {
          "label": "H.265",
          "value": "libx265"
        },
        {
          "label": "MJPEG",
          "value": "mjpeg"
        }
      ],
      "defaultValue": "mpeg4",
      "desc": "Selects the video codec for the AVI output. 'Copy' will keep the original codec 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": "number",
      "optional": true,
      "name": "pass",
      "label": "Pass Number",
      "range": {
        "min": 1,
        "max": 3
      },
      "desc": "Selects the pass number for multi-pass encoding. Multi-pass improves quality at the same bitrate."
    },
    {
      "type": "text",
      "optional": true,
      "name": "vf",
      "label": "Video Filters",
      "placeholder": "e.g., scale=1280:720,transpose=1",
      "desc": "Applies video filters using FFmpeg's filter graph syntax. Example: 'scale=1280:720' to resize."
    },
    {
      "type": "number",
      "optional": true,
      "name": "video_bitrate",
      "label": "Video Bitrate (kbps)",
      "range": {
        "min": 100,
        "max": 50000
      },
      "defaultValue": 2500,
      "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
      },
      "defaultValue": 128,
      "desc": "Sets the audio bitrate for the output. Higher values give better sound quality."
    }
  ],
  "type": "video",
  "operation": "convert"
}