> ## Documentation Index
> Fetch the complete documentation index at: https://apidoc.cometapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Descargar contenido de video de Vidu

> Descarga el archivo MP4 completado de una tarea de video de Vidu a través de la ruta de contenido.

Usa este endpoint para descargar el archivo MP4 de una tarea de video de Vidu completada. Si la tarea sigue en ejecución, la API devuelve un error JSON en lugar de bytes de video.

## Antes de descargar

* Crea una tarea con [Crear un video de Vidu](./create).
* Consulta periódicamente con [Recuperar un video de Vidu](./retrieve) hasta que `status` sea `completed`.
* Pasa el mismo ID de tarea a este endpoint.

## Almacenar medios completados

El cuerpo de la respuesta es contenido binario `video/mp4`. Guarda los bytes en tu propio almacenamiento cuando tu aplicación necesite acceso duradero a los medios generados.


## OpenAPI

````yaml api/openapi/video/vidu/get-retrieve-content.openapi.json GET /v1/videos/{task_id}/content
openapi: 3.1.0
info:
  title: Vidu Video Content API
  version: 1.0.0
  description: >-
    Download the completed MP4 file for a Vidu video task. The endpoint returns
    binary video content on success and a JSON error if the task is not ready.
servers:
  - url: https://api.cometapi.com
security:
  - bearerAuth: []
paths:
  /v1/videos/{task_id}/content:
    get:
      summary: Download Vidu video content
      description: >-
        Download the generated MP4 file after a Vidu video task reaches
        completed status.
      operationId: vidu_retrieve_video_content
      parameters:
        - name: task_id
          in: path
          required: true
          description: Task ID returned by POST /v1/videos.
          schema:
            type: string
          example: task_example
      responses:
        '200':
          description: Binary MP4 video content.
          content:
            video/mp4:
              schema:
                type: string
                format: binary
        '400':
          description: The task is not completed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error:
                  message: 'Task is not completed yet, current status: IN_PROGRESS'
                  type: invalid_request_error
        '404':
          description: The task ID does not match a task for the authenticated user.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error:
                  message: Task not found
                  type: invalid_request_error
      security:
        - bearerAuth: []
      x-codeSamples:
        - lang: Shell
          label: Download MP4
          source: |-
            curl https://api.cometapi.com/v1/videos/<TASK_ID>/content \
              -H "Authorization: Bearer $COMETAPI_KEY" \
              --output output.mp4
        - lang: Python
          label: Download MP4
          source: |
            import os
            from pathlib import Path

            import requests

            TASK_ID = "<TASK_ID>"
            response = requests.get(
                f"https://api.cometapi.com/v1/videos/{TASK_ID}/content",
                headers={"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]},
                timeout=300,
            )
            response.raise_for_status()
            Path("output.mp4").write_bytes(response.content)
        - lang: JavaScript
          label: Download MP4
          source: |
            import { writeFile } from "node:fs/promises";

            const TASK_ID = "<TASK_ID>";
            const response = await fetch(
              `https://api.cometapi.com/v1/videos/${TASK_ID}/content`,
              { headers: { Authorization: `Bearer ${process.env.COMETAPI_KEY}` } },
            );

            if (!response.ok) {
              throw new Error(await response.text());
            }

            const video = new Uint8Array(await response.arrayBuffer());
            await writeFile("output.mp4", video);
components:
  schemas:
    ErrorResponse:
      description: >-
        Error body. Validation errors can use a top-level code and message,
        while authentication errors can use an error object.
      oneOf:
        - type: object
          required:
            - message
          properties:
            code:
              type:
                - string
                - 'null'
              description: Short error code.
            message:
              type: string
              description: Human-readable error message.
          additionalProperties: true
        - type: object
          required:
            - error
          properties:
            error:
              type: object
              required:
                - message
              properties:
                message:
                  type: string
                  description: Human-readable error message.
                type:
                  type: string
                  description: Error category.
                code:
                  type:
                    - string
                    - 'null'
                  description: Short error code.
              additionalProperties: true
          additionalProperties: true
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Bearer authentication. Use your CometAPI API key.

````