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agent-framework/python/samples/getting_started/multimodal_input
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Christian Glessner 8bb1266020 Python: Add PDF file support to OpenAI content parser with filename mapping (#1121)
* Add mapping for application media type in OpenAI responses client

* Enhance multimodal input samples: Add PDF testing functionality and fix image sample

* Standardize filename handling and add multimodal samples

- Standardized filename extraction logic between chat and responses clients
- Both clients now omit filename when not provided (no default fallback)
- Added Azure Responses API multimodal sample with PDF support
- Cleaned up Azure Chat sample to focus on supported features only
- Fixed test comment placement for better code documentation
- Updated README with clear API capability differences

* Enhance multimodal input samples with image and PDF handling

- Refactor image and PDF handling in `azure_chat_multimodal.py` and `openai_chat_multimodal.py` to use new utility functions.
- Add `load_sample_pdf` and `create_sample_image` functions for better test asset management.
- Remove redundant code for creating sample images and PDFs.
- Introduce a sample PDF file in `sample_assets` for testing purposes.

* Fix formatting in OpenAI chat client

---------

Co-authored-by: Dmytro Struk <13853051+dmytrostruk@users.noreply.github.com>
8bb1266020 ยท 2025-10-07 17:04:33 +00:00
History
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Multimodal Input Examples

This folder contains examples demonstrating how to send multimodal content (images, audio, PDF files) to AI agents using the Agent Framework.

Examples

OpenAI Chat Client

  • File: openai_chat_multimodal.py
  • Description: Shows how to send images, audio, and PDF files to OpenAI's Chat Completions API
  • Supported formats: PNG/JPEG images, WAV/MP3 audio, PDF documents

Azure OpenAI Chat Client

  • File: azure_chat_multimodal.py
  • Description: Shows how to send images to Azure OpenAI Chat Completions API
  • Supported formats: PNG/JPEG images (PDF files are NOT supported by Chat Completions API)

Azure OpenAI Responses Client

  • File: azure_responses_multimodal.py
  • Description: Shows how to send images and PDF files to Azure OpenAI Responses API
  • Supported formats: PNG/JPEG images, PDF documents (full multimodal support)

Environment Variables

Set the following environment variables before running the examples:

For OpenAI:

  • OPENAI_API_KEY: Your OpenAI API key

For Azure OpenAI:

  • AZURE_OPENAI_ENDPOINT: Your Azure OpenAI endpoint
  • AZURE_OPENAI_CHAT_DEPLOYMENT_NAME: The name of your Azure OpenAI chat model deployment
  • AZURE_OPENAI_RESPONSES_DEPLOYMENT_NAME: The name of your Azure OpenAI responses model deployment

Optionally for Azure OpenAI:

  • AZURE_OPENAI_API_VERSION: The API version to use (default is 2024-10-21)
  • AZURE_OPENAI_API_KEY: Your Azure OpenAI API key (if not using AzureCliCredential)

Note: You can also provide configuration directly in code instead of using environment variables:

# Example: Pass deployment_name directly
client = AzureOpenAIChatClient(
    credential=AzureCliCredential(),
    deployment_name="your-deployment-name",
    endpoint="https://your-resource.openai.azure.com"
)

Authentication

The Azure example uses AzureCliCredential for authentication. Run az login in your terminal before running the example, or replace AzureCliCredential with your preferred authentication method (e.g., provide api_key parameter).

Running the Examples

# Run OpenAI example
python openai_chat_multimodal.py

# Run Azure Chat example (requires az login or API key)
python azure_chat_multimodal.py

# Run Azure Responses example (requires az login or API key)
python azure_responses_multimodal.py

Using Your Own Files

The examples include small embedded test files for demonstration. To use your own files:

import base64

# Load and encode your file
with open("path/to/your/image.jpg", "rb") as f:
    image_data = f.read()
    image_base64 = base64.b64encode(image_data).decode('utf-8')
    image_uri = f"data:image/jpeg;base64,{image_base64}"

# Use in DataContent
DataContent(
    uri=image_uri,
    media_type="image/jpeg"
)

Method 2: Raw bytes

# Load raw bytes
with open("path/to/your/image.jpg", "rb") as f:
    image_bytes = f.read()

# Use in DataContent
DataContent(
    data=image_bytes,
    media_type="image/jpeg"
)

Supported File Types

Type Formats Notes
Images PNG, JPEG, GIF, WebP Most common image formats
Audio WAV, MP3 For transcription and analysis
Documents PDF Text extraction and analysis

API Differences

  • OpenAI Chat Completions API: Supports images, audio, and PDF files
  • Azure OpenAI Chat Completions API: Supports images only (no PDF/audio file types)
  • Azure OpenAI Responses API: Supports images and PDF files (full multimodal support)

Choose the appropriate client based on your multimodal needs and available APIs.