[libcamera-devel] [PATCH v2 1/2] libcamera: v4l2_device: Identify multiplanar formats

[Jacopo Mondi]

Add functions to V4L2Capability to identify if a V4L2 device supports
multiplanar V4L2 APIs.

Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
---
 src/libcamera/include/v4l2_device.h | 23 +++++++++++++++++++----
 src/libcamera/v4l2_device.cpp       |  6 ++++++
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/src/libcamera/include/v4l2_device.h b/src/libcamera/include/v4l2_device.h
index cb3601c..413bb7f 100644
--- a/src/libcamera/include/v4l2_device.h
+++ b/src/libcamera/include/v4l2_device.h
@@ -32,10 +32,25 @@ struct V4L2Capability final : v4l2_capability {
 				    ? v4l2_capability::device_caps
 				    : v4l2_capability::capabilities;
 	}
-
-	bool isCapture() const { return device_caps() & V4L2_CAP_VIDEO_CAPTURE; }
-	bool isOutput() const { return device_caps() & V4L2_CAP_VIDEO_OUTPUT; }
-	bool hasStreaming() const { return device_caps() & V4L2_CAP_STREAMING; }
+	bool isMultiplanar() const
+	{
+		return device_caps() & (V4L2_CAP_VIDEO_CAPTURE_MPLANE |
+					V4L2_CAP_VIDEO_OUTPUT_MPLANE);
+	}
+	bool isCapture() const
+	{
+		return device_caps() & (V4L2_CAP_VIDEO_CAPTURE |
+					V4L2_CAP_VIDEO_CAPTURE_MPLANE);
+	}
+	bool isOutput() const
+	{
+		return device_caps() & (V4L2_CAP_VIDEO_OUTPUT |
+					V4L2_CAP_VIDEO_OUTPUT_MPLANE);
+	}
+	bool hasStreaming() const
+	{
+		return device_caps() & V4L2_CAP_STREAMING;
+	}
 };
 
 class MediaEntity;
diff --git a/src/libcamera/v4l2_device.cpp b/src/libcamera/v4l2_device.cpp
index 0ce2b18..9cb504d 100644
--- a/src/libcamera/v4l2_device.cpp
+++ b/src/libcamera/v4l2_device.cpp
@@ -56,6 +56,12 @@ LOG_DEFINE_CATEGORY(V4L2)
  * 	   driver capabilities otherwise
  */
 
+/**
+ * \fn bool V4L2Capability::isMultiplanar()
+ * \brief Identify if the device implement V4L2 multiplanar APIs
+ * \return True if the device supports multiplanar APIs
+ */
+
 /**
  * \fn bool V4L2Capability::isCapture()
  * \brief Identify if the device is capable of capturing video
-- 
2.20.1