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-rw-r--r--src/libcamera/v4l2_videodevice.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp
index 1483181a..88535f5a 100644
--- a/src/libcamera/v4l2_videodevice.cpp
+++ b/src/libcamera/v4l2_videodevice.cpp
@@ -1334,10 +1334,19 @@ std::unique_ptr<FrameBuffer> V4L2VideoDevice::createBuffer(unsigned int index)
}
/*
+ * If we have a multi-planar format with a V4L2 single-planar buffer,
+ * split the single V4L2 plane into multiple FrameBuffer planes by
+ * computing the offsets manually.
+ *
* The format info is not guaranteed to be valid, as there are no
* PixelFormatInfo for metadata formats, so check it first.
*/
if (formatInfo_->isValid() && formatInfo_->numPlanes() != numPlanes) {
+ /*
+ * There's no valid situation where the number of colour planes
+ * differs from the number of V4L2 planes and the V4L2 buffer
+ * has more than one plane.
+ */
ASSERT(numPlanes == 1u);
planes.resize(formatInfo_->numPlanes());