ConvertOnline

Menu

1. Convert Online
2. Video Converters
3. WEBM to FLV

{
  "convert": "webm-flv",
  "multiple": true,
  "from": "webm",
  "to": "flv",
  "controls": [
    {
      "type": "dropdown",
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "options": [
        {
          "label": "500 kbps (Low)",
          "value": "500k"
        },
        {
          "label": "1000 kbps (Standard)",
          "value": "1000k"
        },
        {
          "label": "1500 kbps (Medium)",
          "value": "1500k"
        },
        {
          "label": "2000 kbps (High)",
          "value": "2000k"
        },
        {
          "label": "3000 kbps (Very High)",
          "value": "3000k"
        }
      ],
      "defaultValue": "1500k",
      "desc": "Sets the target video bitrate. Higher bitrates improve quality but increase file size. 1500k is a balanced default for web-quality video."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate (fps)",
      "options": [
        {
          "label": "15 fps",
          "value": "15"
        },
        {
          "label": "24 fps (Cinematic)",
          "value": "24"
        },
        {
          "label": "30 fps (Standard)",
          "value": "30"
        },
        {
          "label": "60 fps (High Motion)",
          "value": "60"
        }
      ],
      "defaultValue": "30",
      "desc": "Sets the number of frames per second. A higher frame rate provides smoother video, but increases file size."
    },
    {
      "type": "text",
      "name": "resolution",
      "label": "Resolution (WxH)",
      "placeholder": "e.g. 1280x720",
      "desc": "Specifies the output video resolution. You can enter standard sizes like 1920x1080 or 640x360. Leave empty to keep original resolution."
    },
    {
      "type": "dropdown",
      "name": "aspect_ratio",
      "label": "Aspect Ratio",
      "options": [
        {
          "label": "4:3 (Standard)",
          "value": "4:3"
        },
        {
          "label": "16:9 (Widescreen)",
          "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 video. Common values are 4:3 (standard) and 16:9 (widescreen)."
    },
    {
      "type": "dropdown",
      "name": "video_frames",
      "label": "Limit Output Frames",
      "optional": true,
      "options": [
        {
          "label": "Unlimited (default)",
          "value": ""
        },
        {
          "label": "First 100 frames",
          "value": "100"
        },
        {
          "label": "First 500 frames",
          "value": "500"
        },
        {
          "label": "First 1000 frames",
          "value": "1000"
        }
      ],
      "defaultValue": "",
      "desc": "Optionally limit the number of video frames in the output file. Useful for previews or short clips."
    }
  ],
  "note": "FLV is a legacy video format commonly used for streaming and Flash playback. When converting from WebM, the video will typically be re-encoded to H.263 or H.264. Audio is usually encoded as MP3 or AAC depending on player support. FLV does not support subtitles or advanced metadata. For compatibility, keep frame rates to 30 or below and resolutions at 720p or less.",
  "type": "video",
  "operation": "convert"
}