diff options
| author | Hirokazu Honda <hiroh@chromium.org> | 2021-08-26 20:25:32 +0900 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-08-30 18:08:02 +0300 |
| commit | 8708904fad6f4ff94a30e2b3b537012b7c637c4d (patch) | |
| tree | 0fd8f848eeb168ca9054494319d04bd04f74a7ad /src/libcamera/v4l2_videodevice.cpp | |
| parent | 86a47fdcd97350bd979a4d6b00124330a3b02441 (diff) | |
libcamera: mapped_framebuffer: Return plane begin address by MappedBuffer::maps()
MappedBuffer::maps() returns std::vector<MappedBuffer::Plane>.
Plane has the address, but the address points the beginning of the
buffer containing the plane.
This makes the Plane point the beginning of the plane. So
MappedBuffer::maps()[i].data() returns the address of i-th plane.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/libcamera/v4l2_videodevice.cpp')
| -rw-r--r-- | src/libcamera/v4l2_videodevice.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp index ce60dff6..2ff25af2 100644 --- a/src/libcamera/v4l2_videodevice.cpp +++ b/src/libcamera/v4l2_videodevice.cpp @@ -1283,6 +1283,12 @@ std::unique_ptr<FrameBuffer> V4L2VideoDevice::createBuffer(unsigned int index) FrameBuffer::Plane plane; plane.fd = std::move(fd); + /* + * V4L2 API doesn't provide dmabuf offset information of plane. + * Set 0 as a placeholder offset. + * \todo Set the right offset once V4L2 API provides a way. + */ + plane.offset = 0; plane.length = multiPlanar ? buf.m.planes[nplane].length : buf.length; |