ConvertOnline

Menu

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

{
  "convert": "m4v-mpeg",
  "multiple": true,
  "from": "m4v",
  "to": "mpeg",
  "controls": [
    {
      "type": "number",
      "optional": true,
      "name": "vframes",
      "label": "Number of Video Frames",
      "range": {
        "min": 1,
        "max": 100000
      },
      "desc": "Sets the total number of video frames to output. Leave blank to process the entire video."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate (fps)",
      "options": [
        {
          "label": "23.976 fps (Film)",
          "value": "24000/1001"
        },
        {
          "label": "24 fps",
          "value": "24"
        },
        {
          "label": "25 fps (PAL)",
          "value": "25"
        },
        {
          "label": "29.97 fps (NTSC)",
          "value": "30000/1001"
        },
        {
          "label": "30 fps",
          "value": "30"
        },
        {
          "label": "60 fps",
          "value": "60"
        }
      ],
      "defaultValue": "30",
      "desc": "Sets the output video frame rate. Higher frame rates make motion smoother but increase file size."
    },
    {
      "type": "text",
      "name": "size",
      "label": "Frame Size (WxH)",
      "placeholder": "1920x1080",
      "desc": "Sets the output resolution. Use width x height format (e.g., 1280x720). Leave blank to keep original."
    },
    {
      "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 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. Useful for high-quality or archival purposes."
    },
    {
      "type": "dropdown",
      "name": "vcodec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Copy (no re-encode)",
          "value": "copy"
        },
        {
          "label": "MPEG-2",
          "value": "mpeg2video"
        },
        {
          "label": "MPEG-1",
          "value": "mpeg1video"
        }
      ],
      "defaultValue": "mpeg2video",
      "desc": "Forces a specific video codec. 'Copy' keeps the original stream without re-encoding."
    },
    {
      "type": "text",
      "optional": true,
      "name": "timecode",
      "label": "Timecode",
      "placeholder": "00:00:00:00",
      "desc": "Sets the starting timecode of the video. Format: hh:mm:ss[:;.]ff."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "1 Pass (fast)",
          "value": 1
        },
        {
          "label": "2 Pass (balanced)",
          "value": 2
        },
        {
          "label": "3 Pass (best quality)",
          "value": 3
        }
      ],
      "defaultValue": 1,
      "desc": "Selects the number of encoding passes. More passes improve quality but take longer."
    },
    {
      "type": "text",
      "optional": true,
      "name": "vf",
      "label": "Video Filters",
      "placeholder": "scale=1280:720,transpose=1",
      "desc": "Apply one or more FFmpeg video filters (e.g., scale, crop, rotate). Multiple filters are comma-separated."
    },
    {
      "type": "text",
      "optional": true,
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "placeholder": "2000k",
      "desc": "Sets the output video bitrate. Higher bitrates improve quality but increase file size."
    },
    {
      "type": "text",
      "optional": true,
      "name": "audio_bitrate",
      "label": "Audio Bitrate",
      "placeholder": "128k",
      "desc": "Sets the output audio bitrate. Use standard values like 128k or 192k."
    }
  ],
  "note": "M4V to MPEG conversion can retain quality if using the 'copy' codec, but this only works if the original stream is already MPEG-compatible. Otherwise, re-encoding is required, and settings like frame rate, size, and bitrate will impact both quality and file size.",
  "type": "video",
  "operation": "convert"
}