[Platform][OpenAI] Add support for OpenAI text-to-speech #858
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Pull Request Overview
This PR adds OpenAI text-to-speech (TTS) support to the Symfony AI Platform. The implementation enables users to convert text to audio using OpenAI's TTS models (tts-1, tts-1-hd, and gpt-4o-mini-tts) with various voice options.
Key changes:
- Implementation of TextToSpeech model, client, and result converter
- Addition of Voice and Format constant interfaces for TTS configuration
- Registration of three TTS models in the model catalog with appropriate capabilities
Reviewed Changes
Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.
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| File | Description |
|---|---|
| src/platform/src/Bridge/OpenAi/TextToSpeech.php | Defines the TextToSpeech model class |
| src/platform/src/Bridge/OpenAi/TextToSpeech/ModelClient.php | Implements the HTTP client for TTS API requests |
| src/platform/src/Bridge/OpenAi/TextToSpeech/ResultConverter.php | Converts raw HTTP responses to BinaryResult objects |
| src/platform/src/Bridge/OpenAi/TextToSpeech/Voice.php | Defines available voice constants |
| src/platform/src/Bridge/OpenAi/TextToSpeech/Format.php | Defines supported audio format constants |
| src/platform/src/Bridge/OpenAi/ModelCatalog.php | Registers TTS models with their capabilities |
| src/platform/src/Bridge/OpenAi/PlatformFactory.php | Integrates TTS client and converter into the platform |
| src/platform/tests/Bridge/OpenAi/ModelCatalogTest.php | Adds test cases for TTS models |
| src/platform/tests/Bridge/OpenAi/TextToSpeech/ModelClientTest.php | Tests the TTS model client functionality |
| src/platform/tests/Bridge/OpenAi/TextToSpeech/ResultConverterTest.php | Tests the TTS result converter |
| examples/openai/audio-output.php | Demonstrates usage of TTS functionality |
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src/platform/tests/Bridge/OpenAi/TextToSpeech/ResultConverterTest.php
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src/platform/tests/Bridge/OpenAi/TextToSpeech/ModelClientTest.php
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Adding OpenAI TTS support:
https://platform.openai.com/docs/guides/text-to-speech