qcam: format_converter: Add NV formats support

Add support for some NV formats:
- V4L2_PIX_FMT_NV12, V4L2_PIX_FMT_NV21
- V4L2_PIX_FMT_NV16, V4L2_PIX_FMT_NV61
- V4L2_PIX_FMT_NV24, V4L2_PIX_FMT_NV42

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

1 files changed, 7 insertions, 0 deletions

diff --git a/src/qcam/format_converter.h b/src/qcam/format_converter.h
index bca44aa3..391e6a44 100644
--- a/src/qcam/format_converter.h
+++ b/src/qcam/format_converter.h
@@ -22,10 +22,12 @@ public:
 private:
 	enum FormatFamily {
 		MJPEG,
+		NV,
 		RGB,
 		YUV,
 	};
 
+	void convertNV(const unsigned char *src, unsigned char *dst);
 	void convertRGB(const unsigned char *src, unsigned char *dst);
 	void convertYUV(const unsigned char *src, unsigned char *dst);
 
@@ -35,6 +37,11 @@ private:
 
 	enum FormatFamily formatFamily_;
 
+	/* NV parameters */
+	unsigned int horzSubSample_;
+	unsigned int vertSubSample_;
+	bool nvSwap_;
+
 	/* RGB parameters */
 	unsigned int bpp_;
 	unsigned int r_pos_;