feat(daily): add camera_out_send_settings and deprecate video_out_bitrate

Replaces the hardcoded camera publishing send settings in
DailyTransport with a new DailyParams.camera_out_send_settings dict that
applications can pass through verbatim to the Daily client. This makes
the encoding/codec/bitrate configuration user-controllable instead of
being driven solely by the generic TransportParams fields.

As a consequence, TransportParams.video_out_bitrate is deprecated for
the Daily transport (now configured via camera_out_send_settings) and
its default is changed to None.

src/pipecat/transports/base_output.py

@@ -90,6 +90,18 @@ class BaseOutputTransport(FrameProcessor):
         # it.
         self._media_senders: dict[Any, BaseOutputTransport.MediaSender] = {}
 
+        if params.video_out_bitrate is not None:
+            import warnings
+
+            with warnings.catch_warnings():
+                warnings.simplefilter("always")
+                warnings.warn(
+                    "Transport parameter `video_out_bitrate` is deprecated and will be removed in a future "
+                    "version. Use provider specific settings instead.",
+                    DeprecationWarning,
+                    stacklevel=2,
+                )
+
     @property
     def sample_rate(self) -> int:
         """Get the current audio sample rate.

src/pipecat/transports/base_transport.py

@@ -47,7 +47,7 @@ class TransportParams(BaseModel):
         video_out_is_live: Enable real-time video output streaming.
         video_out_width: Video output width in pixels.
         video_out_height: Video output height in pixels.
-        video_out_bitrate: Video output bitrate in bits per second.
+        video_out_bitrate: [DEPRECATED] Video output bitrate in bits per second.
         video_out_framerate: Video output frame rate in FPS.
         video_out_color_format: Video output color format string.
         video_out_codec: Preferred video codec for output (e.g., 'VP8', 'H264', 'H265').
@@ -76,7 +76,7 @@ class TransportParams(BaseModel):
     video_out_is_live: bool = False
     video_out_width: int = 1024
     video_out_height: int = 768
-    video_out_bitrate: int = 800000
+    video_out_bitrate: int | None = None
     video_out_framerate: int = 30
     video_out_color_format: str = "RGB"
     video_out_codec: str | None = None

src/pipecat/transports/daily/transport.py

@@ -325,6 +325,7 @@ class DailyParams(TransportParams):
         api_key: Daily API authentication key.
         audio_in_user_tracks: Receive users' audio in separate tracks
         camera_out_enabled: Whether to enable the main camera output track.
+        camera_out_send_settings: Camera output track publishing settings.
         custom_audio_track_params: Per-destination configuration for custom audio tracks.
         custom_video_track_params: Per-destination configuration for custom video tracks.
         dialin_settings: Optional settings for dial-in functionality.
@@ -337,6 +338,7 @@ class DailyParams(TransportParams):
     api_key: str = ""
     audio_in_user_tracks: bool = True
     camera_out_enabled: bool = True
+    camera_out_send_settings: dict[str, Any] | None = None
     custom_audio_track_params: Mapping[str, DailyCustomAudioTrackParams] | None = None
     custom_video_track_params: Mapping[str, DailyCustomVideoTrackParams] | None = None
     dialin_settings: DailyDialinSettings | None = None
@@ -909,20 +911,9 @@ class DailyTransportClient(EventHandler):
                 "publishing": {
                     "camera": {
                         "isPublishing": camera_enabled,
-                        "sendSettings": {
-                            "maxQuality": "low",
-                            **(
-                                {"preferredCodec": self._params.video_out_codec}
-                                if self._params.video_out_codec
-                                else {}
-                            ),
-                            "encodings": {
-                                "low": {
-                                    "maxBitrate": self._params.video_out_bitrate,
-                                    "maxFramerate": self._params.video_out_framerate,
-                                }
-                            },
-                        },
+                        "sendSettings": self._params.camera_out_send_settings
+                        if self._params.camera_out_send_settings
+                        else {},
                     },
                     "microphone": {
                         "isPublishing": microphone_enabled,