chromium/media/capture/video/linux/video_capture_device_linux.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "media/capture/video/linux/video_capture_device_linux.h"

#include <stddef.h>

#include <utility>

#include "base/functional/bind.h"
#include "base/synchronization/waitable_event.h"
#include "base/task/single_thread_task_runner.h"
#include "base/task/thread_pool.h"
#include "build/build_config.h"
#include "media/capture/video/linux/v4l2_capture_delegate.h"

#if BUILDFLAG(IS_OPENBSD)
#include <sys/videoio.h>
#else
#include <linux/videodev2.h>
#endif

namespace media {

namespace {

int TranslatePowerLineFrequencyToV4L2(PowerLineFrequency frequency) { … }

}  // namespace

// Translates Video4Linux pixel formats to Chromium pixel formats.
// static
VideoPixelFormat VideoCaptureDeviceLinux::V4l2FourCcToChromiumPixelFormat(
    uint32_t v4l2_fourcc) { … }

// Gets a list of usable Four CC formats prioritized.
// static
std::vector<uint32_t> VideoCaptureDeviceLinux::GetListOfUsableFourCCs(
    bool favour_mjpeg) { … }

VideoCaptureDeviceLinux::VideoCaptureDeviceLinux(
    scoped_refptr<V4L2CaptureDevice> v4l2,
    const VideoCaptureDeviceDescriptor& device_descriptor)
    : … { … }

VideoCaptureDeviceLinux::~VideoCaptureDeviceLinux() { … }

void VideoCaptureDeviceLinux::AllocateAndStart(
    const VideoCaptureParams& params,
    std::unique_ptr<VideoCaptureDevice::Client> client) { … }

void VideoCaptureDeviceLinux::StopAndDeAllocate() { … }

void VideoCaptureDeviceLinux::TakePhoto(TakePhotoCallback callback) { … }

void VideoCaptureDeviceLinux::GetPhotoState(GetPhotoStateCallback callback) { … }

void VideoCaptureDeviceLinux::SetPhotoOptions(
    mojom::PhotoSettingsPtr settings,
    SetPhotoOptionsCallback callback) { … }

void VideoCaptureDeviceLinux::SetRotation(int rotation) { … }

void VideoCaptureDeviceLinux::StopAndDeAllocateInternal(
    base::WaitableEvent* waiter) { … }

void VideoCaptureDeviceLinux::SetGPUEnvironmentForTesting(
    std::unique_ptr<gpu::GpuMemoryBufferSupport> gmb_support) { … }

}  // namespace media