Render Testimonial Clip

Immutable Catalog Entry

This descriptor comes from the active versioned Portal catalog.

WRITEffmpeg.render_testimonial_clip

• Contract tier: agent_ready
• Risk: write
• Catalog version: 2026-07-12.3
• Descriptor hash: 8784bcaa41cb3df669793bf39b7c9fb5b3f0168405af6c88d8ff7ce56e6bac12

Use this to produce approved testimonial variants from staged media, quote, author, captions, brand, and audio inputs. It queues new output assets.

Request Body

{
  "jsonrpc": "2.0",
  "id": "ffmpeg-render-testimonial-clip-example",
  "method": "tools/call",
  "params": {
    "name": "ffmpeg.render_testimonial_clip",
    "arguments": {
      "primary_asset_id": "primary_asset_id_123",
      "quote": "",
      "author": "",
      "quality": "",
      "priority": "",
      "audio_lra": "",
      "music_gain": "",
      "voice_gain": "",
      "words_json": "",
      "brand_kit_id": ""
    }
  }
}

Arguments Schema

{
  "type": "object",
  "required": [
    "primary_asset_id"
  ],
  "properties": {
    "quote": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Optional testimonial quotation copy for the render."
    },
    "author": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Optional testimonial attribution copy for the render."
    },
    "quality": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Approved render quality mode, normally draft or final."
    },
    "priority": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Optional queue priority configured by the server, such as urgent or batch."
    },
    "audio_lra": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Target loudness range used by normalization."
    },
    "music_gain": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Background-music gain multiplier within server limits."
    },
    "voice_gain": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Voice-track gain multiplier within server limits."
    },
    "words_json": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "object",
            "additionalProperties": true
          }
        },
        {
          "type": "null"
        }
      ],
      "description": "Timed word objects containing word, start, and end values; provide only one caption source."
    },
    "brand_kit_id": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Existing local brand-kit identifier."
    },
    "captions_srt": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Inline SRT caption text; provide only one caption source."
    },
    "captions_vtt": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Inline WebVTT caption text; provide only one caption source."
    },
    "framing_mode": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Approved fit, fill, crop, or safe framing behavior."
    },
    "include_16_9": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "description": "When true, add a 16:9 variant to the default social outputs."
    },
    "trim_silence": {
      "anyOf": [
        {
          "type": "boolean"
        },
        {
          "type": "null"
        }
      ],
      "description": "Whether the render pipeline should trim leading and trailing silence."
    },
    "ducking_ratio": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Compressor ratio used for voice-driven music ducking."
    },
    "highlight_mode": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Approved caption word-highlight behavior."
    },
    "music_asset_id": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Stable ID of the staged background music asset."
    },
    "voice_asset_id": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Stable ID of the staged voice or dialogue audio asset."
    },
    "audio_true_peak": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Maximum true-peak target in dBTP."
    },
    "broll_asset_ids": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "description": "Optional ordered staged asset IDs used as supporting B-roll."
    },
    "caption_position": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Approved overlay or caption position name."
    },
    "primary_asset_id": {
      "type": "string",
      "description": "Stable ID of the primary staged media asset for the render."
    },
    "audio_target_lufs": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Target integrated loudness in LUFS."
    },
    "caption_box_color": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Safe FFmpeg color used for the text background box."
    },
    "caption_font_name": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Allowlisted server font filename or name."
    },
    "caption_font_size": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Font size in pixels within configured minimum and maximum bounds."
    },
    "caption_max_chars": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Maximum characters per caption line within server limits."
    },
    "caption_max_lines": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Maximum lines in one caption cue within server limits."
    },
    "caption_max_words": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Maximum words in one caption cue within server limits."
    },
    "ducking_attack_ms": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Ducking compressor attack time in milliseconds."
    },
    "ducking_threshold": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Signal threshold used to trigger ducking."
    },
    "safe_zone_profile": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Approved platform safe-zone profile for caption placement."
    },
    "caption_font_color": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Safe FFmpeg color used for text."
    },
    "caption_padding_px": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Caption box padding in pixels within server limits."
    },
    "ducking_release_ms": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Ducking compressor release time in milliseconds."
    },
    "caption_box_opacity": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Caption background opacity from 0.0 through 1.0."
    },
    "trim_silence_min_sec": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Minimum silence duration in seconds that the render pipeline may trim."
    },
    "caption_font_asset_id": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Optional staged font asset ID used for caption rendering."
    },
    "caption_highlight_color": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "description": "Safe color used for highlighted caption words."
    },
    "caption_safe_zone_top_px": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Additional top safe-zone inset in pixels."
    },
    "trim_silence_threshold_db": {
      "anyOf": [
        {
          "type": "number"
        },
        {
          "type": "null"
        }
      ],
      "description": "Silence detection threshold in decibels."
    },
    "caption_safe_zone_bottom_px": {
      "anyOf": [
        {
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "description": "Additional bottom safe-zone inset in pixels."
    }
  },
  "additionalProperties": false
}

Output Schema

{
  "type": "object",
  "required": [
    "job_id",
    "cache_hit"
  ],
  "properties": {
    "job_id": {
      "type": "string",
      "description": "Stable ID used with the job readback tools."
    },
    "cache_hit": {
      "type": "boolean",
      "description": "Whether a matching completed result was reused."
    },
    "output_asset_ids": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Completed output asset IDs when immediately available from cache."
    }
  },
  "additionalProperties": false
}

Code Examples

cURL

curl -X POST 'https://portal.madpanda3d.com/api/mcp' \
  -H 'Authorization: Bearer mad_live_***' \
  -H 'Content-Type: application/json' \
  -d '{
  "jsonrpc": "2.0",
  "id": "ffmpeg-render-testimonial-clip-example",
  "method": "tools/call",
  "params": {
    "name": "ffmpeg.render_testimonial_clip",
    "arguments": {
      "primary_asset_id": "primary_asset_id_123",
      "quote": "",
      "author": "",
      "quality": "",
      "priority": "",
      "audio_lra": "",
      "music_gain": "",
      "voice_gain": "",
      "words_json": "",
      "brand_kit_id": ""
    }
  }
}'

Node.js

const response = await fetch('https://portal.madpanda3d.com/api/mcp', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer mad_live_***',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "jsonrpc": "2.0",
  "id": "ffmpeg-render-testimonial-clip-example",
  "method": "tools/call",
  "params": {
    "name": "ffmpeg.render_testimonial_clip",
    "arguments": {
      "primary_asset_id": "primary_asset_id_123",
      "quote": "",
      "author": "",
      "quality": "",
      "priority": "",
      "audio_lra": "",
      "music_gain": "",
      "voice_gain": "",
      "words_json": "",
      "brand_kit_id": ""
    }
  }
}),
});
const data = await response.json();
console.log(data);

Python

import requests

url = 'https://portal.madpanda3d.com/api/mcp'
headers = {
    'Authorization': 'Bearer mad_live_***',
    'Content-Type': 'application/json',
}
payload = {
  "jsonrpc": "2.0",
  "id": "ffmpeg-render-testimonial-clip-example",
  "method": "tools/call",
  "params": {
    "name": "ffmpeg.render_testimonial_clip",
    "arguments": {
      "primary_asset_id": "primary_asset_id_123",
      "quote": "",
      "author": "",
      "quality": "",
      "priority": "",
      "audio_lra": "",
      "music_gain": "",
      "voice_gain": "",
      "words_json": "",
      "brand_kit_id": ""
    }
  }
}
response = requests.post(url, headers=headers, json=payload, timeout=60)
print(response.json())

Example Responses

200 Success

{
  "ok": true,
  "message": "Tool ffmpeg.render_testimonial_clip executed successfully.",
  "note": "Response shape varies by MCP tool. Inspect live responses for exact fields."
}

502 Upstream Error

{
  "ok": false,
  "classification": "upstream_http_error",
  "message": "Upstream MCP returned a non-success status."
}