libcamera: pipeline: simple: converter: Improve error message

When the configuration of the converter fails due to format mismatch,
the error messages only indicates that a failure occurred. Improve it to
ease debugging by printing the requested and obtained formats.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>

src/libcamera/pipeline/simple/converter.cpp

@@ -64,7 +64,9 @@ int SimpleConverter::Stream::configure(const StreamConfiguration &inputCfg,
 	if (format.fourcc != videoFormat || format.size != inputCfg.size ||
 	    format.planes[0].bpl != inputCfg.stride) {
 		LOG(SimplePipeline, Error)
-			<< "Input format not supported";
+			<< "Input format not supported (requested "
+			<< inputCfg.size.toString() << "-" << videoFormat.toString()
+			<< ", got " << format.toString() << ")";
 		return -EINVAL;
 	}