add video quality setting.

node/services/backends/cameras/picamera2.py

@@ -7,7 +7,7 @@
 
 from libcamera import Transform, controls
 from picamera2 import Picamera2, Preview
-from picamera2.encoders import MJPEGEncoder
+from picamera2.encoders import MJPEGEncoder, Quality
 from picamera2.outputs import FileOutput
 
 from ...config.models import ConfigBackendPicamera2
@@ -113,7 +113,9 @@ def start_stream(self):
         # encoder.frame_skip_count = 2  # every nth frame to save cpu/bandwith on
         # low power devices but this can cause issues with timing it seems and permanent non-synchronizity
 
-        self._picamera2.start_recording(encoder, FileOutput(self._streaming_output))
+        logger.info(f"stream quality {Quality[self._config.videostream_quality]=}")
+
+        self._picamera2.start_recording(encoder, FileOutput(self._streaming_output), quality=Quality[self._config.videostream_quality])
         logger.info("encoding stream started")
 
     def stop_stream(self):

node/services/config/models.py

@@ -35,6 +35,10 @@ class ConfigBackendPicamera2(BaseModel):
     LIVEVIEW_RESOLUTION_WIDTH: int = Field(default=768)
     LIVEVIEW_RESOLUTION_HEIGHT: int = Field(default=432)
     original_still_quality: int = Field(default=90)
+    videostream_quality: Literal["VERY_LOW", "LOW", "MEDIUM", "HIGH", "VERY_HIGH"] = Field(
+        default="MEDIUM",
+        description="Lower quality results in less data to be transferred and may reduce load on devices.",
+    )
 
 
 class GroupCameraBackend(BaseModel):