diff options
| -rw-r--r-- | include/libcamera/internal/v4l2_videodevice.h | 4 | ||||
| -rw-r--r-- | src/libcamera/v4l2_videodevice.cpp | 30 |
2 files changed, 15 insertions, 19 deletions
diff --git a/include/libcamera/internal/v4l2_videodevice.h b/include/libcamera/internal/v4l2_videodevice.h index 4a44b7fd..80b66577 100644 --- a/include/libcamera/internal/v4l2_videodevice.h +++ b/include/libcamera/internal/v4l2_videodevice.h @@ -19,6 +19,7 @@ #include <libcamera/base/class.h> #include <libcamera/base/log.h> #include <libcamera/base/signal.h> +#include <libcamera/base/unique_fd.h> #include <libcamera/framebuffer.h> #include <libcamera/geometry.h> @@ -31,7 +32,6 @@ namespace libcamera { class EventNotifier; -class FileDescriptor; class MediaDevice; class MediaEntity; @@ -238,7 +238,7 @@ private: int createBuffers(unsigned int count, std::vector<std::unique_ptr<FrameBuffer>> *buffers); std::unique_ptr<FrameBuffer> createBuffer(unsigned int index); - FileDescriptor exportDmabufFd(unsigned int index, unsigned int plane); + UniqueFD exportDmabufFd(unsigned int index, unsigned int plane); void bufferAvailable(); FrameBuffer *dequeueBuffer(); diff --git a/src/libcamera/v4l2_videodevice.cpp b/src/libcamera/v4l2_videodevice.cpp index c95626d3..3966483a 100644 --- a/src/libcamera/v4l2_videodevice.cpp +++ b/src/libcamera/v4l2_videodevice.cpp @@ -1320,12 +1320,12 @@ std::unique_ptr<FrameBuffer> V4L2VideoDevice::createBuffer(unsigned int index) std::vector<FrameBuffer::Plane> planes; for (unsigned int nplane = 0; nplane < numPlanes; nplane++) { - FileDescriptor fd = exportDmabufFd(buf.index, nplane); + UniqueFD fd = exportDmabufFd(buf.index, nplane); if (!fd.isValid()) return nullptr; FrameBuffer::Plane plane; - plane.fd = std::move(fd); + plane.fd = FileDescriptor(std::move(fd)); /* * V4L2 API doesn't provide dmabuf offset information of plane. * Set 0 as a placeholder offset. @@ -1380,8 +1380,8 @@ std::unique_ptr<FrameBuffer> V4L2VideoDevice::createBuffer(unsigned int index) return std::make_unique<FrameBuffer>(planes); } -FileDescriptor V4L2VideoDevice::exportDmabufFd(unsigned int index, - unsigned int plane) +UniqueFD V4L2VideoDevice::exportDmabufFd(unsigned int index, + unsigned int plane) { struct v4l2_exportbuffer expbuf = {}; int ret; @@ -1395,10 +1395,10 @@ FileDescriptor V4L2VideoDevice::exportDmabufFd(unsigned int index, if (ret < 0) { LOG(V4L2, Error) << "Failed to export buffer: " << strerror(-ret); - return FileDescriptor(); + return {}; } - return FileDescriptor(std::move(expbuf.fd)); + return UniqueFD(expbuf.fd); } /** @@ -1896,7 +1896,6 @@ V4L2M2MDevice::~V4L2M2MDevice() */ int V4L2M2MDevice::open() { - int fd; int ret; /* @@ -1905,30 +1904,27 @@ int V4L2M2MDevice::open() * as the V4L2VideoDevice::open() retains a handle by duplicating the * fd passed in. */ - fd = syscall(SYS_openat, AT_FDCWD, deviceNode_.c_str(), - O_RDWR | O_NONBLOCK); - if (fd < 0) { + UniqueFD fd(syscall(SYS_openat, AT_FDCWD, deviceNode_.c_str(), + O_RDWR | O_NONBLOCK)); + if (!fd.isValid()) { ret = -errno; - LOG(V4L2, Error) - << "Failed to open V4L2 M2M device: " << strerror(-ret); + LOG(V4L2, Error) << "Failed to open V4L2 M2M device: " + << strerror(-ret); return ret; } - ret = output_->open(fd, V4L2_BUF_TYPE_VIDEO_OUTPUT); + ret = output_->open(fd.get(), V4L2_BUF_TYPE_VIDEO_OUTPUT); if (ret) goto err; - ret = capture_->open(fd, V4L2_BUF_TYPE_VIDEO_CAPTURE); + ret = capture_->open(fd.get(), V4L2_BUF_TYPE_VIDEO_CAPTURE); if (ret) goto err; - ::close(fd); - return 0; err: close(); - ::close(fd); return ret; } |