ConvertOnline

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1. Convert Online
2. Video Converters
3. FLV to MP4

{
  "convert": "flv-mp4",
  "multiple": true,
  "from": "flv",
  "to": "mp4",
  "controls": [
    {
      "type": "dropdown",
      "name": "video_bitrate",
      "label": "Video Bitrate",
      "options": [
        {
          "label": "500 kbps (Low)",
          "value": "500k"
        },
        {
          "label": "1000 kbps (Standard)",
          "value": "1000k"
        },
        {
          "label": "2000 kbps",
          "value": "2000k"
        },
        {
          "label": "4000 kbps (High)",
          "value": "4000k"
        },
        {
          "label": "8000 kbps (Very High)",
          "value": "8000k"
        }
      ],
      "defaultValue": "1000k",
      "desc": "Sets the target video bitrate. Higher bitrates improve quality but increase file size. 1000 kbps is standard for most web videos."
    },
    {
      "type": "dropdown",
      "name": "frame_rate",
      "label": "Frame Rate (FPS)",
      "options": [
        {
          "label": "15 FPS (Low Motion)",
          "value": 15
        },
        {
          "label": "24 FPS (Film)",
          "value": 24
        },
        {
          "label": "30 FPS (Standard)",
          "value": 30
        },
        {
          "label": "60 FPS (High Motion)",
          "value": 60
        }
      ],
      "defaultValue": 30,
      "desc": "Specifies the number of frames per second in the output video. 30 FPS is standard for web and playback compatibility."
    },
    {
      "type": "text",
      "name": "resolution",
      "label": "Resolution (Width x Height)",
      "defaultValue": "1280x720",
      "desc": "Sets the output video resolution in pixels (e.g., 1280x720 for HD). Use original resolution or scale down to reduce file size."
    },
    {
      "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 (4:3)",
          "value": "1.3333"
        },
        {
          "label": "1.7777 (16:9)",
          "value": "1.7777"
        }
      ],
      "defaultValue": "16:9",
      "desc": "Sets the display aspect ratio of the video. 16:9 is commonly used for HD and widescreen formats."
    },
    {
      "type": "dropdown",
      "name": "pass",
      "label": "Encoding Pass",
      "options": [
        {
          "label": "1-pass (Faster)",
          "value": 1
        },
        {
          "label": "2-pass (Better Quality)",
          "value": 2
        }
      ],
      "defaultValue": 1,
      "desc": "1-pass encoding is faster, while 2-pass improves compression quality at the same bitrate. Use 2-pass for final exports."
    },
    {
      "type": "dropdown",
      "name": "audio_bitrate",
      "label": "Audio Bitrate",
      "options": [
        {
          "label": "64 kbps",
          "value": "64k"
        },
        {
          "label": "96 kbps",
          "value": "96k"
        },
        {
          "label": "128 kbps (Standard)",
          "value": "128k"
        },
        {
          "label": "192 kbps",
          "value": "192k"
        },
        {
          "label": "256 kbps",
          "value": "256k"
        }
      ],
      "defaultValue": "128k",
      "desc": "Specifies the output audio bitrate. Higher values offer better sound quality but increase file size."
    }
  ],
  "note": "This conversion upgrades FLV (typically using older codecs like Sorenson or VP6) to MP4 using modern H.264 and AAC codecs. Make sure to set a reasonable bitrate and resolution for best playback compatibility across devices. If the original FLV uses a non-standard frame rate or resolution, you can adjust it here to fit your needs.",
  "type": "video",
  "operation": "convert"
}