Update OpenAIRealtimeLLMService to work with LLMContext and LLMContextAggregatorPair (cont'd).

CHANGELOG.md

@@ -9,6 +9,85 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Expanded support for univeral `LLMContext` to `OpenAIRealtimeLLMService`.
+  As a reminder, the context-setup pattern when using `LLMContext` is:
+
+  ```python
+  context = LLMContext(messages, tools)
+  context_aggregator = LLMContextAggregatorPair(context)
+  ```
+
+  (Note that even though `OpenAIRealtimeLLMService` now supports the universal
+  `LLMContext`, it is not meant to be swapped out for another LLM service at
+  runtime.)
+
+  Note: `TranscriptionFrame`s now go upstream from `OpenAIRealtimeLLMService`,
+  so if you're using `TranscriptProcessor`, say, you'll want to adjust
+  accordingly:
+
+  ```python
+  pipeline = Pipeline(
+    [
+      transport.input(),
+      context_aggregator.user(),
+
+      # BEFORE
+      llm,
+      transcript.user(),
+
+      # AFTER
+      transcript.user(),
+      llm,
+
+      transport.output(),
+      transcript.assistant(),
+      context_aggregator.assistant(),
+    ]
+  )
+  ```
+
+  Also worth noting: whether or not you use the new context-setup pattern with
+  `OpenAIRealtimeLLMService`, some types have changed under the hood:
+
+  ```python
+  ## BEFORE:
+
+  # Context aggregator type
+  context_aggregator: OpenAIContextAggregatorPair
+
+  # Context frame type
+  frame: OpenAILLMContextFrame
+
+  # Context type
+  context: OpenAIRealtimeLLMContext
+  # or
+  context: OpenAILLMContext
+
+  # Reading messages from context
+  messages = context.messages
+
+  ## AFTER:
+
+  # Context aggregator type
+  context_aggregator: LLMContextAggregatorPair
+
+  # Context frame type
+  frame: LLMContextFrame
+
+  # Context type
+  context: LLMContext
+
+  # Reading messages from context
+  messages = context.get_messages()
+  ```
+
+  Also note that `RealtimeMessagesUpdateFrame` and
+  `RealtimeFunctionCallResultFrame` have been deprecated, since they're no
+  longer used by `OpenAIRealtimeLLMService`. OpenAI Realtime now works more
+  like other LLM services in Pipecat, relying on updates to its context, pushed
+  by context aggregators, to update its internal state. Listen for
+  `LLMContextFrame`s for context updates.
+
 - Expanded support for universal `LLMContext` to `GeminiLiveLLMService`.
   As a reminder, the context-setup pattern when using `LLMContext` is:
 
@@ -79,6 +158,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Deprecated
 
+- The `send_transcription_frames` argument to `OpenAIRealtimeLLMService` is
+  deprecated. Transcription frames are now always sent. They go upstream, to be
+  handled by the user context aggregator. See "Added" section for details.
+
+- Types in `pipecat.services.openai.realtime.context` and
+  `pipecat.services.openai.realtime.frames` are deprecated, as they're no
+  longer used by `OpenAIRealtimeLLMService`. See "Added" section for details.
+
 - `SimliVideoService` `simli_config` parameter is deprecated. Use `api_key` and
   `face_id` parameters instead.
 
@@ -200,8 +287,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   deprecated. Transcription frames are now always sent. They go upstream, to be
   handled by the user context aggregator. See "Added" section for details.
 
-- Types in `pipecat.services.aws.nova_sonic.context` have been deprecated due
+- Types in `pipecat.services.aws.nova_sonic.context` are deprecated, as they're
-  to changes to support `LLMContext`. See "Changed" section for details.
+  no longer used by `AWSNovaSonicLLMService`. See "Added" section for
+  details.
 
 ### Fixed