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-rw-r--r--include/libcamera/internal/v4l2_pixelformat.h5
-rw-r--r--src/libcamera/v4l2_pixelformat.cpp182
2 files changed, 130 insertions, 57 deletions
diff --git a/include/libcamera/internal/v4l2_pixelformat.h b/include/libcamera/internal/v4l2_pixelformat.h
index 560c5c53..87872542 100644
--- a/include/libcamera/internal/v4l2_pixelformat.h
+++ b/include/libcamera/internal/v4l2_pixelformat.h
@@ -20,6 +20,11 @@ namespace libcamera {
class V4L2PixelFormat
{
public:
+ struct Info {
+ PixelFormat format;
+ const char *description;
+ };
+
V4L2PixelFormat()
: fourcc_(0)
{
diff --git a/src/libcamera/v4l2_pixelformat.cpp b/src/libcamera/v4l2_pixelformat.cpp
index d1f3a42f..795da771 100644
--- a/src/libcamera/v4l2_pixelformat.cpp
+++ b/src/libcamera/v4l2_pixelformat.cpp
@@ -45,78 +45,146 @@ LOG_DECLARE_CATEGORY(V4L2)
namespace {
-const std::map<V4L2PixelFormat, PixelFormat> vpf2pf{
+const std::map<V4L2PixelFormat, V4L2PixelFormat::Info> vpf2pf{
/* RGB formats. */
- { V4L2PixelFormat(V4L2_PIX_FMT_RGB565), formats::RGB565 },
- { V4L2PixelFormat(V4L2_PIX_FMT_RGB565X), formats::RGB565_BE },
- { V4L2PixelFormat(V4L2_PIX_FMT_RGB24), formats::BGR888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_BGR24), formats::RGB888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_XBGR32), formats::XRGB8888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_XRGB32), formats::BGRX8888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_RGBX32), formats::XBGR8888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_RGBA32), formats::ABGR8888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_ABGR32), formats::ARGB8888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_ARGB32), formats::BGRA8888 },
- { V4L2PixelFormat(V4L2_PIX_FMT_BGRA32), formats::RGBA8888 },
+ { V4L2PixelFormat(V4L2_PIX_FMT_RGB565),
+ { formats::RGB565, "16-bit RGB 5-6-5" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_RGB565X),
+ { formats::RGB565_BE, "16-bit RGB 5-6-5 BE" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_RGB24),
+ { formats::BGR888, "24-bit RGB 8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_BGR24),
+ { formats::RGB888, "24-bit BGR 8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_XBGR32),
+ { formats::XRGB8888, "32-bit BGRX 8-8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_XRGB32),
+ { formats::BGRX8888, "32-bit XRGB 8-8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_RGBX32),
+ { formats::XBGR8888, "32-bit RGBX 8-8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_RGBA32),
+ { formats::ABGR8888, "32-bit RGBA 8-8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_ABGR32),
+ { formats::ARGB8888, "32-bit BGRA 8-8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_ARGB32),
+ { formats::BGRA8888, "32-bit ARGB 8-8-8-8" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_BGRA32),
+ { formats::RGBA8888, "32-bit ABGR 8-8-8-8" } },
/* YUV packed formats. */
- { V4L2PixelFormat(V4L2_PIX_FMT_YUYV), formats::YUYV },
- { V4L2PixelFormat(V4L2_PIX_FMT_YVYU), formats::YVYU },
- { V4L2PixelFormat(V4L2_PIX_FMT_UYVY), formats::UYVY },
- { V4L2PixelFormat(V4L2_PIX_FMT_VYUY), formats::VYUY },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YUYV),
+ { formats::YUYV, "YUYV 4:2:2" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YVYU),
+ { formats::YVYU, "YVYU 4:2:2" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_UYVY),
+ { formats::UYVY, "UYVY 4:2:2" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_VYUY),
+ { formats::VYUY, "VYUY 4:2:2" } },
/* 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 },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV16),
+ { formats::NV16, "Y/CbCr 4:2:2" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV16M),
+ { formats::NV16, "Y/CbCr 4:2:2 (N-C)" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV61),
+ { formats::NV61, "Y/CrCb 4:2:2" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV61M),
+ { formats::NV61, "Y/CrCb 4:2:2 (N-C)" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV12),
+ { formats::NV12, "Y/CbCr 4:2:0" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV12M),
+ { formats::NV12, "Y/CbCr 4:2:0 (N-C)" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV21),
+ { formats::NV21, "Y/CrCb 4:2:0" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_NV21M),
+ { formats::NV21, "Y/CrCb 4:2:0 (N-C)" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YUV420),
+ { formats::YUV420, "Planar YUV 4:2:0" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YUV420M),
+ { formats::YUV420, "Planar YUV 4:2:0 (N-C)" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YVU420),
+ { formats::YVU420, "Planar YVU 4:2:0" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YVU420M),
+ { formats::YVU420, "Planar YVU 4:2:0 (N-C)" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YUV422P),
+ { formats::YUV422, "Planar YUV 4:2:2" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_YUV422M),
+ { formats::YUV422, "Planar YUV 4:2:2 (N-C)" } },
/* Greyscale formats. */
- { V4L2PixelFormat(V4L2_PIX_FMT_GREY), formats::R8 },
+ { V4L2PixelFormat(V4L2_PIX_FMT_GREY),
+ { formats::R8, "8-bit Greyscale" } },
/* Bayer formats. */
- { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8), formats::SBGGR8 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG8), formats::SGBRG8 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG8), formats::SGRBG8 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB8), formats::SRGGB8 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10), formats::SBGGR10 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10), formats::SGBRG10 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10), formats::SGRBG10 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10), formats::SRGGB10 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10P), formats::SBGGR10_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10P), formats::SGBRG10_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10P), formats::SGRBG10_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10P), formats::SRGGB10_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12), formats::SBGGR12 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12), formats::SGBRG12 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12), formats::SGRBG12 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12), formats::SRGGB12 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12P), formats::SBGGR12_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12P), formats::SGBRG12_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12P), formats::SGRBG12_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12P), formats::SRGGB12_CSI2P },
- { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR16), formats::SBGGR16 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG16), formats::SGBRG16 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG16), formats::SGRBG16 },
- { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB16), formats::SRGGB16 },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8),
+ { formats::SBGGR8, "8-bit Bayer BGBG/GRGR" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG8),
+ { formats::SGBRG8, "8-bit Bayer GBGB/RGRG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG8),
+ { formats::SGRBG8, "8-bit Bayer GRGR/BGBG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB8),
+ { formats::SRGGB8, "8-bit Bayer RGRG/GBGB" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10),
+ { formats::SBGGR10, "10-bit Bayer BGBG/GRGR" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10),
+ { formats::SGBRG10, "10-bit Bayer GBGB/RGRG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10),
+ { formats::SGRBG10, "10-bit Bayer GRGR/BGBG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10),
+ { formats::SRGGB10, "10-bit Bayer RGRG/GBGB" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10P),
+ { formats::SBGGR10_CSI2P, "10-bit Bayer BGBG/GRGR Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10P),
+ { formats::SGBRG10_CSI2P, "10-bit Bayer GBGB/RGRG Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10P),
+ { formats::SGRBG10_CSI2P, "10-bit Bayer GRGR/BGBG Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10P),
+ { formats::SRGGB10_CSI2P, "10-bit Bayer RGRG/GBGB Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12),
+ { formats::SBGGR12, "12-bit Bayer BGBG/GRGR" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12),
+ { formats::SGBRG12, "12-bit Bayer GBGB/RGRG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12),
+ { formats::SGRBG12, "12-bit Bayer GRGR/BGBG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12),
+ { formats::SRGGB12, "12-bit Bayer RGRG/GBGB" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12P),
+ { formats::SBGGR12_CSI2P, "12-bit Bayer BGBG/GRGR Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12P),
+ { formats::SGBRG12_CSI2P, "12-bit Bayer GBGB/RGRG Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12P),
+ { formats::SGRBG12_CSI2P, "12-bit Bayer GRGR/BGBG Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12P),
+ { formats::SRGGB12_CSI2P, "12-bit Bayer RGRG/GBGB Packed" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR16),
+ { formats::SBGGR16, "16-bit Bayer BGBG/GRGR" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGBRG16),
+ { formats::SGBRG16, "16-bit Bayer GBGB/RGRG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SGRBG16),
+ { formats::SGRBG16, "16-bit Bayer GRGR/BGBG" } },
+ { V4L2PixelFormat(V4L2_PIX_FMT_SRGGB16),
+ { formats::SRGGB16, "16-bit Bayer RGRG/GBGB" } },
/* Compressed formats. */
- { V4L2PixelFormat(V4L2_PIX_FMT_MJPEG), formats::MJPEG },
+ { V4L2PixelFormat(V4L2_PIX_FMT_MJPEG),
+ { formats::MJPEG, "Motion-JPEG" } },
};
} /* namespace */
/**
+ * \struct V4L2PixelFormat::Info
+ * \brief Information about a V4L2 pixel format
+ *
+ * \var V4L2PixelFormat::Info::format
+ * \brief The corresponding libcamera PixelFormat
+ *
+ * \sa PixelFormat
+ *
+ * \var V4L2PixelFormat::Info::description
+ * \brief The human-readable description of the V4L2 pixel format
+ */
+
+/**
* \fn V4L2PixelFormat::V4L2PixelFormat()
* \brief Construct a V4L2PixelFormat with an invalid format
*
@@ -192,7 +260,7 @@ PixelFormat V4L2PixelFormat::toPixelFormat() const
return PixelFormat();
}
- return iter->second;
+ return iter->second.format;
}
/**