ConvertOnline

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

{
  "convert": "mpeg-mkv",
  "multiple": true,
  "from": "mpeg",
  "to": "mkv",
  "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 creating short clips without full re-encoding."
    },
    {
      "type": "dropdown",
      "name": "framerate",
      "label": "Frame Rate (fps)",
      "options": [
        {
          "label": "Same as source",
          "value": ""
        },
        {
          "label": "23.976 fps",
          "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": "",
      "desc": "Sets the output video frame rate. Leave blank to keep the original rate."
    },
    {
      "type": "text",
      "optional": true,
      "name": "resolution",
      "label": "Resolution",
      "placeholder": "e.g. 1920x1080",
      "desc": "Sets the output video resolution in WxH format (e.g., 1280x720). Leave blank to keep the original."
    },
    {
      "type": "dropdown",
      "name": "aspect_ratio",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "Same as source",
          "value": ""
        },
        {
          "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": "",
      "desc": "Sets the display aspect ratio of the output video. Leave blank to keep the original."
    },
    {
      "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 video sample. Higher values may improve quality but increase file size."
    },
    {
      "type": "dropdown",
      "name": "video_codec",
      "label": "Video Codec",
      "options": [
        {
          "label": "Copy Original",
          "value": "copy"
        },
        {
          "label": "H.264",
          "value": "libx264"
        },
        {
          "label": "H.265 / HEVC",
          "value": "libx265"
        },
        {
          "label": "VP9",
          "value": "libvpx-vp9"
        }
      ],
      "defaultValue": "copy",
      "desc": "Selects the video codec for encoding. 'Copy' will 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 initial timecode for the output video. Useful for broadcast or editing workflows."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "Single Pass",
          "value": "1"
        },
        {
          "label": "Two Pass",
          "value": "2"
        },
        {
          "label": "Three Pass",
          "value": "3"
        }
      ],
      "defaultValue": "1",
      "desc": "Selects the number of encoding passes. More passes can improve quality at the cost of longer processing time."
    },
    {
      "type": "dropdown",
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "options": [
        {
          "label": "500 kbps",
          "value": "500k"
        },
        {
          "label": "1000 kbps",
          "value": "1000k"
        },
        {
          "label": "2000 kbps",
          "value": "2000k"
        },
        {
          "label": "5000 kbps",
          "value": "5000k"
        },
        {
          "label": "8000 kbps",
          "value": "8000k"
        }
      ],
      "defaultValue": "2000k",
      "desc": "Sets the target video bitrate. Higher bitrates produce better quality but larger files."
    },
    {
      "type": "dropdown",
      "name": "audio_bitrate",
      "label": "Audio Bitrate",
      "options": [
        {
          "label": "64 kbps",
          "value": "64k"
        },
        {
          "label": "128 kbps (Standard)",
          "value": "128k"
        },
        {
          "label": "192 kbps",
          "value": "192k"
        },
        {
          "label": "256 kbps",
          "value": "256k"
        }
      ],
      "defaultValue": "128k",
      "desc": "Sets the target audio bitrate. Higher values improve sound quality."
    }
  ],
  "note": "When converting from MPEG to MKV, most users can simply copy the original streams (-c copy) for faster processing without quality loss. Changing frame rate, resolution, or codec will require re-encoding, which takes more time and may affect quality.",
  "type": "video",
  "operation": "convert"
}