Revert of Image Capture Linux/CrOs: wire some capabilities set/get

media/capture/video/linux/v4l2_capture_delegate.cc

 // Copyright 2015 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/v4l2_capture_delegate.h"
 
 #include <poll.h>
 #include <sys/fcntl.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
@@ skipping 310 matching lines @@
   is_capturing_ = false;
   client_.reset();
 }
 
 void V4L2CaptureDelegate::TakePhoto(
     VideoCaptureDevice::TakePhotoCallback callback) {
   DCHECK(v4l2_task_runner_->BelongsToCurrentThread());
   take_photo_callbacks_.push(std::move(callback));
 }
 
-void V4L2CaptureDelegate::GetPhotoCapabilities(
-    VideoCaptureDevice::GetPhotoCapabilitiesCallback callback) {
-  DCHECK(v4l2_task_runner_->BelongsToCurrentThread());
-
-  mojom::PhotoCapabilitiesPtr photo_capabilities =
-      mojom::PhotoCapabilities::New();
-
-  photo_capabilities->zoom = mojom::Range::New();
-  v4l2_queryctrl zoom_range = {};
-  zoom_range.id = V4L2_CID_ZOOM_ABSOLUTE;
-  zoom_range.type = V4L2_CTRL_TYPE_INTEGER;
-  if (HANDLE_EINTR(ioctl(device_fd_.get(), VIDIOC_QUERYCTRL, &zoom_range)) >=
-      0) {
-    photo_capabilities->zoom->max = zoom_range.maximum * 100;
-    photo_capabilities->zoom->min = zoom_range.minimum * 100;
-  }
-  v4l2_control zoom_current = {};
-  zoom_current.id = V4L2_CID_ZOOM_ABSOLUTE;
-  if (HANDLE_EINTR(ioctl(device_fd_.get(), VIDIOC_G_CTRL, &zoom_current)) >= 0)
-    photo_capabilities->zoom->current = zoom_current.value * 100;
-
-  photo_capabilities->focus_mode = mojom::MeteringMode::NONE;
-  v4l2_control auto_focus_current = {};
-  auto_focus_current.id = V4L2_CID_FOCUS_AUTO;
-  if (HANDLE_EINTR(
-          ioctl(device_fd_.get(), VIDIOC_G_CTRL, &auto_focus_current)) >= 0) {
-    photo_capabilities->focus_mode = auto_focus_current.value
-                                         ? mojom::MeteringMode::CONTINUOUS
-                                         : mojom::MeteringMode::MANUAL;
-  }
-
-  photo_capabilities->exposure_mode = mojom::MeteringMode::NONE;
-  v4l2_control exposure_current = {};
-  exposure_current.id = V4L2_CID_EXPOSURE_AUTO;
-  if (HANDLE_EINTR(ioctl(device_fd_.get(), VIDIOC_G_CTRL, &exposure_current)) >=
-      0) {
-    photo_capabilities->exposure_mode =
-        exposure_current.value == V4L2_EXPOSURE_MANUAL
-            ? mojom::MeteringMode::MANUAL
-            : mojom::MeteringMode::CONTINUOUS;
-  }
-
-  photo_capabilities->white_balance_mode = mojom::MeteringMode::NONE;
-  v4l2_control white_balance_current = {};
-  white_balance_current.id = V4L2_CID_AUTO_WHITE_BALANCE;
-  if (HANDLE_EINTR(ioctl(device_fd_.get(), VIDIOC_G_CTRL,
-                         &white_balance_current)) >= 0) {
-    photo_capabilities->white_balance_mode =
-        white_balance_current.value ? mojom::MeteringMode::CONTINUOUS
-                                    : mojom::MeteringMode::MANUAL;
-  }
-
-  photo_capabilities->iso = mojom::Range::New();
-  photo_capabilities->height = mojom::Range::New();
-  photo_capabilities->width = mojom::Range::New();
-  photo_capabilities->exposure_compensation = mojom::Range::New();
-  photo_capabilities->fill_light_mode = mojom::FillLightMode::NONE;
-  photo_capabilities->red_eye_reduction = false;
-  callback.Run(std::move(photo_capabilities));
-}
-
-void V4L2CaptureDelegate::SetPhotoOptions(
-    mojom::PhotoSettingsPtr settings,
-    VideoCaptureDevice::SetPhotoOptionsCallback callback) {
-  if (settings->has_zoom) {
-    v4l2_control zoom_current = {};
-    zoom_current.id = V4L2_CID_ZOOM_ABSOLUTE;
-    zoom_current.value = settings->zoom / 100;
-    if (HANDLE_EINTR(ioctl(device_fd_.get(), VIDIOC_S_CTRL, &zoom_current)) < 0)
-      DLOG(ERROR) << "Error setting zoom value to " << (settings->zoom / 100);
-  }
-  callback.Run(true);
-}
-
 void V4L2CaptureDelegate::SetRotation(int rotation) {
   DCHECK(v4l2_task_runner_->BelongsToCurrentThread());
   DCHECK(rotation >= 0 && rotation < 360 && rotation % 90 == 0);
   rotation_ = rotation;
 }
 
 V4L2CaptureDelegate::~V4L2CaptureDelegate() {}
 
 bool V4L2CaptureDelegate::MapAndQueueBuffer(int index) {
   v4l2_buffer buffer;
@@ skipping 115 matching lines @@
     DLOG(ERROR) << "Error mmap()ing a V4L2 buffer into userspace";
     return false;
   }
   start_ = static_cast<uint8_t*>(start);
   length_ = buffer.length;
   payload_size_ = 0;
   return true;
 }
 
 }  // namespace media