libcamera: v4l2_videodevice: Drop toV4L2PixelFormat()

The V4L2VideoDevice::toV4L2PixelFormat() function is incorrectly
implemented, as it will pick a multi-planar format if the device
supports the multi-planar API, even if only single-planar formats are
supported. This currently works because the implementation calls
V4L2PixelFormat::fromPixelFormat(), which ignores the multiplanar
argument and always returns a single-planar format.

Fixing this isn't trivial. As we don't need to support multi-planar V4L2
formats at this point, drop the function instead of pretending
everything is fine, and call V4L2PixelFormat::fromPixelFormat() directly
from pipeline handlers. As the single-planar case is the most common,
set the multiplanar argument to false by default to avoid long lines.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/test/libtest/buffer_source.cpp b/test/libtest/buffer_source.cpp
index 73563f2f..64e7376a 100644
--- a/test/libtest/buffer_source.cpp
+++ b/test/libtest/buffer_source.cpp
@@ -70,8 +70,7 @@ int BufferSource::allocate(const StreamConfiguration &config)
 	}
 
 	format.size = config.size;
-	format.fourcc = V4L2PixelFormat::fromPixelFormat(config.pixelFormat,
-							 false);
+	format.fourcc = V4L2PixelFormat::fromPixelFormat(config.pixelFormat);
 	if (video->setFormat(&format)) {
 		std::cout << "Failed to set format on output device" << std::endl;
 		return TestFail;