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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-09-07 00:06:52 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-09-07 19:18:55 +0300 |
| commit | a25710428e1a6ef9fff3d70e3f50c01a88cde9f2 (patch) | |
| tree | 393ff1a2f695faf3d4e556570fdb4afe9ab4b987 /src/v4l2/v4l2_camera_proxy.cpp | |
| parent | a339d055cc7ebd92b89adadd3044f69f8f9653b8 (diff) | |
v4l2: Sum bytesused for all planes when dequeuing buffer
The V4L2 compatibility layer supports the single-planar API only, and
thus exposes a single V4L2 buffer plane to applications, regardless of
the number of planes in the FrameBuffer. For multi-planar frame buffers,
the bytesused value isn't correct as it only takes the first plane into
account. Fix it by summing the bytesused values for all FrameBuffer
planes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Diffstat (limited to 'src/v4l2/v4l2_camera_proxy.cpp')
| -rw-r--r-- | src/v4l2/v4l2_camera_proxy.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index 07d2250b..aeffef26 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -11,6 +11,7 @@ #include <array> #include <errno.h> #include <linux/videodev2.h> +#include <numeric> #include <set> #include <string.h> #include <sys/mman.h> @@ -211,7 +212,11 @@ void V4L2CameraProxy::updateBuffers() switch (fmd.status) { case FrameMetadata::FrameSuccess: - buf.bytesused = fmd.planes()[0].bytesused; + buf.bytesused = std::accumulate(fmd.planes().begin(), + fmd.planes().end(), 0, + [](unsigned int total, const auto &plane) { + return total + plane.bytesused; + }); buf.field = V4L2_FIELD_NONE; buf.timestamp.tv_sec = fmd.timestamp / 1000000000; buf.timestamp.tv_usec = fmd.timestamp % 1000000; |