[libcamera-devel] [RFC PATCH v1 04/12] libcamera: formats: Support V4L2 non-contiguous formats

Laurent Pinchart laurent.pinchart at ideasonboard.com
Thu Sep 2 06:22:55 CEST 2021


V4L2 describes multi-planar formats with different 4CCs depending on
whether or not the planes are stored contiguously in memory. Support
this when translating between PixelFormat and V4L2PixelFormat.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 include/libcamera/internal/formats.h |   2 +-
 src/libcamera/formats.cpp            | 141 ++++++++++++++++-----------
 src/libcamera/pipeline/ipu3/cio2.cpp |   2 +-
 src/libcamera/v4l2_pixelformat.cpp   |  11 ++-
 src/v4l2/v4l2_camera_proxy.cpp       |   6 +-
 5 files changed, 99 insertions(+), 63 deletions(-)

diff --git a/include/libcamera/internal/formats.h b/include/libcamera/internal/formats.h
index 8f314e99889b..f9ce5f0834fa 100644
--- a/include/libcamera/internal/formats.h
+++ b/include/libcamera/internal/formats.h
@@ -55,7 +55,7 @@ public:
 	/* \todo Add support for non-contiguous memory planes */
 	const char *name;
 	PixelFormat format;
-	V4L2PixelFormat v4l2Format;
+	std::array<V4L2PixelFormat, 2> v4l2Format;
 	unsigned int bitsPerPixel;
 	enum ColourEncoding colourEncoding;
 	bool packed;
diff --git a/src/libcamera/formats.cpp b/src/libcamera/formats.cpp
index 76be93bc1c5c..ce7c5a2d267e 100644
--- a/src/libcamera/formats.cpp
+++ b/src/libcamera/formats.cpp
@@ -56,7 +56,14 @@ LOG_DEFINE_CATEGORY(Formats)
  * \brief The PixelFormat described by this instance
  *
  * \var PixelFormatInfo::v4l2Format
- * \brief The V4L2 pixel format corresponding to the PixelFormat
+ * \brief The V4L2 pixel formats corresponding to the PixelFormat
+ *
+ * Multiple V4L2 formats may exist for one PixelFormat when the format uses
+ * multiple planes, as V4L2 defines separate 4CCs for contiguous and separate
+ * planes formats. The two entries in the array store the contiguous and
+ * non-contiguous V4L2 formats respectively. If the PixelFormat isn't a
+ * multiplanar format, or if no corresponding non-contiguous V4L2 format
+ * exists, the second entry is invalid.
  *
  * \var PixelFormatInfo::bitsPerPixel
  * \brief The average number of bits per pixel
@@ -149,7 +156,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::RGB565, {
 		.name = "RGB565",
 		.format = formats::RGB565,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_RGB565),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_RGB565), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -159,7 +166,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::RGB565_BE, {
 		.name = "RGB565_BE",
 		.format = formats::RGB565_BE,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_RGB565X),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_RGB565X), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -169,7 +176,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::BGR888, {
 		.name = "BGR888",
 		.format = formats::BGR888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_RGB24),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_RGB24), },
 		.bitsPerPixel = 24,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -179,7 +186,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::RGB888, {
 		.name = "RGB888",
 		.format = formats::RGB888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_BGR24),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_BGR24), },
 		.bitsPerPixel = 24,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -189,7 +196,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::XRGB8888, {
 		.name = "XRGB8888",
 		.format = formats::XRGB8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_XBGR32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_XBGR32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -199,7 +206,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::XBGR8888, {
 		.name = "XBGR8888",
 		.format = formats::XBGR8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_RGBX32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_RGBX32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -209,7 +216,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::BGRX8888, {
 		.name = "BGRX8888",
 		.format = formats::BGRX8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_XRGB32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_XRGB32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -219,7 +226,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::ABGR8888, {
 		.name = "ABGR8888",
 		.format = formats::ABGR8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_RGBA32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_RGBA32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -229,7 +236,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::ARGB8888, {
 		.name = "ARGB8888",
 		.format = formats::ARGB8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_ABGR32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_ABGR32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -239,7 +246,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::BGRA8888, {
 		.name = "BGRA8888",
 		.format = formats::BGRA8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_ARGB32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_ARGB32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -249,7 +256,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::RGBA8888, {
 		.name = "RGBA8888",
 		.format = formats::RGBA8888,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_BGRA32),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_BGRA32), },
 		.bitsPerPixel = 32,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRGB,
 		.packed = false,
@@ -261,7 +268,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::YUYV, {
 		.name = "YUYV",
 		.format = formats::YUYV,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YUYV),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_YUYV), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -271,7 +278,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::YVYU, {
 		.name = "YVYU",
 		.format = formats::YVYU,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YVYU),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_YVYU), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -281,7 +288,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::UYVY, {
 		.name = "UYVY",
 		.format = formats::UYVY,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_UYVY),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_UYVY), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -291,7 +298,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::VYUY, {
 		.name = "VYUY",
 		.format = formats::VYUY,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_VYUY),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_VYUY), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -303,7 +310,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::NV12, {
 		.name = "NV12",
 		.format = formats::NV12,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_NV12),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_NV12),
+			V4L2PixelFormat(V4L2_PIX_FMT_NV12M),
+		},
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -313,7 +323,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::NV21, {
 		.name = "NV21",
 		.format = formats::NV21,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_NV21),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_NV21),
+			V4L2PixelFormat(V4L2_PIX_FMT_NV21M),
+		},
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -323,7 +336,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::NV16, {
 		.name = "NV16",
 		.format = formats::NV16,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_NV16),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_NV16),
+			V4L2PixelFormat(V4L2_PIX_FMT_NV16M),
+		},
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -333,7 +349,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::NV61, {
 		.name = "NV61",
 		.format = formats::NV61,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_NV61),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_NV61),
+			V4L2PixelFormat(V4L2_PIX_FMT_NV61M),
+		},
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -343,7 +362,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::NV24, {
 		.name = "NV24",
 		.format = formats::NV24,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_NV24),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_NV24), },
 		.bitsPerPixel = 24,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -353,7 +372,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::NV42, {
 		.name = "NV42",
 		.format = formats::NV42,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_NV42),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_NV42), },
 		.bitsPerPixel = 24,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -363,7 +382,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::YUV420, {
 		.name = "YUV420",
 		.format = formats::YUV420,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YUV420),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_YUV420),
+			V4L2PixelFormat(V4L2_PIX_FMT_YUV420M),
+		},
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -373,7 +395,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::YVU420, {
 		.name = "YVU420",
 		.format = formats::YVU420,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YVU420),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_YVU420),
+			V4L2PixelFormat(V4L2_PIX_FMT_YVU420M),
+		},
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -383,7 +408,10 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::YUV422, {
 		.name = "YUV422",
 		.format = formats::YUV422,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_YUV422P),
+		.v4l2Format = {
+			V4L2PixelFormat(V4L2_PIX_FMT_YUV422P),
+			V4L2PixelFormat(V4L2_PIX_FMT_YUV422M),
+		},
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -395,7 +423,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::R8, {
 		.name = "R8",
 		.format = formats::R8,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_GREY),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_GREY), },
 		.bitsPerPixel = 8,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -407,7 +435,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR8, {
 		.name = "SBGGR8",
 		.format = formats::SBGGR8,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8), },
 		.bitsPerPixel = 8,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -417,7 +445,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG8, {
 		.name = "SGBRG8",
 		.format = formats::SGBRG8,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGBRG8),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG8), },
 		.bitsPerPixel = 8,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -427,7 +455,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG8, {
 		.name = "SGRBG8",
 		.format = formats::SGRBG8,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGRBG8),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG8), },
 		.bitsPerPixel = 8,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -437,7 +465,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB8, {
 		.name = "SRGGB8",
 		.format = formats::SRGGB8,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SRGGB8),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB8), },
 		.bitsPerPixel = 8,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -447,7 +475,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR10, {
 		.name = "SBGGR10",
 		.format = formats::SBGGR10,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -457,7 +485,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG10, {
 		.name = "SGBRG10",
 		.format = formats::SGBRG10,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -467,7 +495,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG10, {
 		.name = "SGRBG10",
 		.format = formats::SGRBG10,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -477,7 +505,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB10, {
 		.name = "SRGGB10",
 		.format = formats::SRGGB10,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -487,7 +515,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR10_CSI2P, {
 		.name = "SBGGR10_CSI2P",
 		.format = formats::SBGGR10_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10P), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -497,7 +525,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG10_CSI2P, {
 		.name = "SGBRG10_CSI2P",
 		.format = formats::SGBRG10_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10P), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -507,7 +535,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG10_CSI2P, {
 		.name = "SGRBG10_CSI2P",
 		.format = formats::SGRBG10_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10P), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -517,7 +545,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB10_CSI2P, {
 		.name = "SRGGB10_CSI2P",
 		.format = formats::SRGGB10_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10P), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -527,7 +555,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR12, {
 		.name = "SBGGR12",
 		.format = formats::SBGGR12,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -537,7 +565,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG12, {
 		.name = "SGBRG12",
 		.format = formats::SGBRG12,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -547,7 +575,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG12, {
 		.name = "SGRBG12",
 		.format = formats::SGRBG12,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -557,7 +585,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB12, {
 		.name = "SRGGB12",
 		.format = formats::SRGGB12,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -567,7 +595,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR12_CSI2P, {
 		.name = "SBGGR12_CSI2P",
 		.format = formats::SBGGR12_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12P), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -577,7 +605,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG12_CSI2P, {
 		.name = "SGBRG12_CSI2P",
 		.format = formats::SGBRG12_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12P), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -587,7 +615,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG12_CSI2P, {
 		.name = "SGRBG12_CSI2P",
 		.format = formats::SGRBG12_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12P), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -597,7 +625,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB12_CSI2P, {
 		.name = "SRGGB12_CSI2P",
 		.format = formats::SRGGB12_CSI2P,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12P),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12P), },
 		.bitsPerPixel = 12,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -607,7 +635,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR16, {
 		.name = "SBGGR16",
 		.format = formats::SBGGR16,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR16),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR16), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -617,7 +645,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG16, {
 		.name = "SGBRG16",
 		.format = formats::SGBRG16,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGBRG16),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG16), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -627,7 +655,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG16, {
 		.name = "SGRBG16",
 		.format = formats::SGRBG16,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SGRBG16),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG16), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -637,7 +665,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB16, {
 		.name = "SRGGB16",
 		.format = formats::SRGGB16,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_SRGGB16),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB16), },
 		.bitsPerPixel = 16,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = false,
@@ -647,7 +675,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SBGGR10_IPU3, {
 		.name = "SBGGR10_IPU3",
 		.format = formats::SBGGR10_IPU3,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SBGGR10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SBGGR10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -658,7 +686,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGBRG10_IPU3, {
 		.name = "SGBRG10_IPU3",
 		.format = formats::SGBRG10_IPU3,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SGBRG10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SGBRG10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -668,7 +696,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SGRBG10_IPU3, {
 		.name = "SGRBG10_IPU3",
 		.format = formats::SGRBG10_IPU3,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SGRBG10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SGRBG10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -678,7 +706,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::SRGGB10_IPU3, {
 		.name = "SRGGB10_IPU3",
 		.format = formats::SRGGB10_IPU3,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SRGGB10),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SRGGB10), },
 		.bitsPerPixel = 10,
 		.colourEncoding = PixelFormatInfo::ColourEncodingRAW,
 		.packed = true,
@@ -690,7 +718,7 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
 	{ formats::MJPEG, {
 		.name = "MJPEG",
 		.format = formats::MJPEG,
-		.v4l2Format = V4L2PixelFormat(V4L2_PIX_FMT_MJPEG),
+		.v4l2Format = { V4L2PixelFormat(V4L2_PIX_FMT_MJPEG), },
 		.bitsPerPixel = 0,
 		.colourEncoding = PixelFormatInfo::ColourEncodingYUV,
 		.packed = false,
@@ -736,7 +764,8 @@ const PixelFormatInfo &PixelFormatInfo::info(const V4L2PixelFormat &format)
 {
 	const auto &info = std::find_if(pixelFormatInfo.begin(), pixelFormatInfo.end(),
 					[format](auto pair) {
-						return pair.second.v4l2Format == format;
+						return pair.second.v4l2Format[0] == format ||
+						       pair.second.v4l2Format[1] == format;
 					});
 	if (info == pixelFormatInfo.end())
 		return pixelFormatInfoInvalid;
diff --git a/src/libcamera/pipeline/ipu3/cio2.cpp b/src/libcamera/pipeline/ipu3/cio2.cpp
index 9cedcb5b2879..5a9cffc80c8d 100644
--- a/src/libcamera/pipeline/ipu3/cio2.cpp
+++ b/src/libcamera/pipeline/ipu3/cio2.cpp
@@ -205,7 +205,7 @@ int CIO2Device::configure(const Size &size, V4L2DeviceFormat *outputFormat)
 
 	const PixelFormatInfo &info = PixelFormatInfo::info(itInfo->second);
 
-	outputFormat->fourcc = info.v4l2Format;
+	outputFormat->fourcc = info.v4l2Format[0];
 	outputFormat->size = sensorFormat.size;
 	outputFormat->planesCount = 1;
 
diff --git a/src/libcamera/v4l2_pixelformat.cpp b/src/libcamera/v4l2_pixelformat.cpp
index 93fc4446cc64..93ead8928ed7 100644
--- a/src/libcamera/v4l2_pixelformat.cpp
+++ b/src/libcamera/v4l2_pixelformat.cpp
@@ -67,12 +67,19 @@ const std::map<V4L2PixelFormat, PixelFormat> vpf2pf{
 
 	/* YUV planar formats. */
 	{ V4L2PixelFormat(V4L2_PIX_FMT_NV16), formats::NV16 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_NV16M), formats::NV16 },
 	{ V4L2PixelFormat(V4L2_PIX_FMT_NV61), formats::NV61 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_NV61M), formats::NV61 },
 	{ V4L2PixelFormat(V4L2_PIX_FMT_NV12), formats::NV12 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_NV12M), formats::NV12 },
 	{ V4L2PixelFormat(V4L2_PIX_FMT_NV21), formats::NV21 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_NV21M), formats::NV21 },
 	{ V4L2PixelFormat(V4L2_PIX_FMT_YUV420), formats::YUV420 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_YUV420M), formats::YUV420 },
 	{ V4L2PixelFormat(V4L2_PIX_FMT_YVU420), formats::YVU420 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_YVU420M), formats::YVU420 },
 	{ V4L2PixelFormat(V4L2_PIX_FMT_YUV422P), formats::YUV422 },
+	{ V4L2PixelFormat(V4L2_PIX_FMT_YUV422M), formats::YUV422 },
 
 	/* Greyscale formats. */
 	{ V4L2PixelFormat(V4L2_PIX_FMT_GREY), formats::R8 },
@@ -202,13 +209,13 @@ PixelFormat V4L2PixelFormat::toPixelFormat() const
  * \return The V4L2PixelFormat corresponding to \a pixelFormat
  */
 V4L2PixelFormat V4L2PixelFormat::fromPixelFormat(const PixelFormat &pixelFormat,
-						 [[maybe_unused]] bool multiplanar)
+						 bool multiplanar)
 {
 	const PixelFormatInfo &info = PixelFormatInfo::info(pixelFormat);
 	if (!info.isValid())
 		return V4L2PixelFormat();
 
-	return info.v4l2Format;
+	return info.v4l2Format[multiplanar ? 1 : 0];
 }
 
 } /* namespace libcamera */
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 7682c4bddf90..8d8ee395954f 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -169,7 +169,7 @@ void V4L2CameraProxy::setFmtFromConfig(const StreamConfiguration &streamConfig)
 
 	v4l2PixFormat_.width        = size.width;
 	v4l2PixFormat_.height       = size.height;
-	v4l2PixFormat_.pixelformat  = info.v4l2Format;
+	v4l2PixFormat_.pixelformat  = info.v4l2Format[0];
 	v4l2PixFormat_.field        = V4L2_FIELD_NONE;
 	v4l2PixFormat_.bytesperline = streamConfig.stride;
 	v4l2PixFormat_.sizeimage    = streamConfig.frameSize;
@@ -276,7 +276,7 @@ int V4L2CameraProxy::vidioc_enum_fmt(V4L2CameraFile *file, struct v4l2_fmtdesc *
 	/* \todo Add map from format to description. */
 	utils::strlcpy(reinterpret_cast<char *>(arg->description),
 		       "Video Format Description", sizeof(arg->description));
-	arg->pixelformat = PixelFormatInfo::info(format).v4l2Format;
+	arg->pixelformat = PixelFormatInfo::info(format).v4l2Format[0];
 
 	memset(arg->reserved, 0, sizeof(arg->reserved));
 
@@ -315,7 +315,7 @@ int V4L2CameraProxy::tryFormat(struct v4l2_format *arg)
 
 	arg->fmt.pix.width        = config.size.width;
 	arg->fmt.pix.height       = config.size.height;
-	arg->fmt.pix.pixelformat  = info.v4l2Format;
+	arg->fmt.pix.pixelformat  = info.v4l2Format[0];
 	arg->fmt.pix.field        = V4L2_FIELD_NONE;
 	arg->fmt.pix.bytesperline = config.stride;
 	arg->fmt.pix.sizeimage    = config.frameSize;
-- 
Regards,

Laurent Pinchart



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