feat: Use yuv by default if no pixelFormat is set (#2441)

Author: mrousavy

package/src/Camera.tsx

@@ -470,6 +470,7 @@ export class Camera extends React.PureComponent<CameraProps, CameraState> {
     }
 
     const shouldEnableBufferCompression = props.video === true && frameProcessor == null
+    const pixelFormat = props.pixelFormat ?? (frameProcessor == null ? 'yuv' : 'native')
     const torch = this.state.isRecordingWithFlash ? 'on' : props.torch
 
     return (
@@ -487,6 +488,7 @@ export class Camera extends React.PureComponent<CameraProps, CameraState> {
         codeScannerOptions={codeScanner}
         enableFrameProcessor={frameProcessor != null}
         enableBufferCompression={props.enableBufferCompression ?? shouldEnableBufferCompression}
+        pixelFormat={pixelFormat}
       />
     )
   }

package/src/CameraProps.ts

@@ -74,7 +74,9 @@ export interface CameraProps extends ViewProps {
    * - `yuv`: The YUV (Y'CbCr 4:2:0 or NV21, 8-bit) format, either video- or full-range, depending on hardware capabilities. This is the second most efficient format.
    * - `rgb`: The RGB (RGB, RGBA or ABGRA, 8-bit) format. This is least efficient and requires explicit conversion.
    *
-   * @default `native`
+   * @default
+   * - Without a Frame Processor: `native`
+   * - With a Frame Processor: `yuv`
    */
   pixelFormat?: 'native' | 'yuv' | 'rgb'
   //#endregion