move //media/capture to //device/capture

media/capture/video/linux/video_capture_device_linux.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// 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 <list>
-
-#include "base/bind.h"
-#include "build/build_config.h"
-#include "media/capture/video/linux/v4l2_capture_delegate.h"
-
-#if defined(OS_OPENBSD)
-#include <sys/videoio.h>
-#else
-#include <linux/videodev2.h>
-#endif
-
-namespace media {
-
-// Translates Video4Linux pixel formats to Chromium pixel formats.
-// static
-VideoPixelFormat VideoCaptureDeviceLinux::V4l2FourCcToChromiumPixelFormat(
-    uint32_t v4l2_fourcc) {
-  return V4L2CaptureDelegate::V4l2FourCcToChromiumPixelFormat(v4l2_fourcc);
-}
-
-// Gets a list of usable Four CC formats prioritized.
-// static
-std::list<uint32_t> VideoCaptureDeviceLinux::GetListOfUsableFourCCs(
-    bool favour_mjpeg) {
-  return V4L2CaptureDelegate::GetListOfUsableFourCcs(favour_mjpeg);
-}
-
-VideoCaptureDeviceLinux::VideoCaptureDeviceLinux(
-    const VideoCaptureDeviceDescriptor& device_descriptor)
-    : v4l2_thread_("V4L2CaptureThread"),
-      device_descriptor_(device_descriptor) {}
-
-VideoCaptureDeviceLinux::~VideoCaptureDeviceLinux() {
-  // Check if the thread is running.
-  // This means that the device has not been StopAndDeAllocate()d properly.
-  DCHECK(!v4l2_thread_.IsRunning());
-  v4l2_thread_.Stop();
-}
-
-void VideoCaptureDeviceLinux::AllocateAndStart(
-    const VideoCaptureParams& params,
-    std::unique_ptr<VideoCaptureDevice::Client> client) {
-  DCHECK(!capture_impl_);
-  if (v4l2_thread_.IsRunning())
-    return;  // Wrong state.
-  v4l2_thread_.Start();
-
-  const int line_frequency =
-      TranslatePowerLineFrequencyToV4L2(GetPowerLineFrequency(params));
-  capture_impl_ = new V4L2CaptureDelegate(
-      device_descriptor_, v4l2_thread_.task_runner(), line_frequency);
-  if (!capture_impl_) {
-    client->OnError(FROM_HERE, "Failed to create VideoCaptureDelegate");
-    return;
-  }
-  v4l2_thread_.message_loop()->PostTask(
-      FROM_HERE,
-      base::Bind(&V4L2CaptureDelegate::AllocateAndStart, capture_impl_,
-                 params.requested_format.frame_size.width(),
-                 params.requested_format.frame_size.height(),
-                 params.requested_format.frame_rate, base::Passed(&client)));
-}
-
-void VideoCaptureDeviceLinux::StopAndDeAllocate() {
-  if (!v4l2_thread_.IsRunning())
-    return;  // Wrong state.
-  v4l2_thread_.message_loop()->PostTask(
-      FROM_HERE,
-      base::Bind(&V4L2CaptureDelegate::StopAndDeAllocate, capture_impl_));
-  v4l2_thread_.Stop();
-
-  capture_impl_ = NULL;
-}
-
-void VideoCaptureDeviceLinux::SetRotation(int rotation) {
-  if (v4l2_thread_.IsRunning()) {
-    v4l2_thread_.message_loop()->PostTask(
-        FROM_HERE,
-        base::Bind(&V4L2CaptureDelegate::SetRotation, capture_impl_, rotation));
-  }
-}
-
-// static
-int VideoCaptureDeviceLinux::TranslatePowerLineFrequencyToV4L2(
-    PowerLineFrequency frequency) {
-  switch (frequency) {
-    case media::PowerLineFrequency::FREQUENCY_50HZ:
-      return V4L2_CID_POWER_LINE_FREQUENCY_50HZ;
-    case media::PowerLineFrequency::FREQUENCY_60HZ:
-      return V4L2_CID_POWER_LINE_FREQUENCY_60HZ;
-    default:
-      // If we have no idea of the frequency, at least try and set it to AUTO.
-      return V4L2_CID_POWER_LINE_FREQUENCY_AUTO;
-  }
-}
-
-}  // namespace media