Index: chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
diff --git a/chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc b/chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..e4ebbc25b7ec3197bd9697759fb5f5b7ee8beb0e |
--- /dev/null |
+++ b/chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
@@ -0,0 +1,164 @@ |
+// Copyright 2014 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. |
not at google - send to devlin
2014/04/24 16:09:53
if this is effectively the same file then make sur
|
+ |
+#include "chrome/browser/extensions/api/webcam_private/webcam_private_api.h" |
+ |
+#include <fcntl.h> |
+#include <linux/videodev2.h> |
+#include <stdio.h> |
+#include <sys/ioctl.h> |
+#include <unistd.h> |
+ |
+#include "base/files/scoped_file.h" |
+#include "base/posix/eintr_wrapper.h" |
+#include "chrome/common/extensions/api/webcam_private.h" |
+ |
+namespace content { |
+class BrowserContext; |
+} // namespace content |
+ |
+namespace { |
+ |
+base::ScopedFD OpenWebcam(const std::string& extension_id, |
+ content::BrowserContext* browser_context, |
+ const std::string& webcam_id) { |
+ // TODO(zork): Get device_id from content::MediaStreamManager. |
+ std::string device_id = "/dev/video0"; |
+ |
+ return base::ScopedFD(HANDLE_EINTR(open(device_id.c_str(), 0))); |
+} |
+ |
+void SetWebcamParameter(int fd, int control_id, int value) { |
+ struct v4l2_control v4l2_ctrl = {control_id, value}; |
+ HANDLE_EINTR(ioctl(fd, VIDIOC_S_CTRL, &v4l2_ctrl)); |
+} |
+ |
+bool GetWebcamParameter(int fd, int control_id, int* value) { |
+ struct v4l2_control v4l2_ctrl = {control_id}; |
+ |
+ if (HANDLE_EINTR(ioctl(fd, VIDIOC_G_CTRL, &v4l2_ctrl))) |
+ return false; |
+ |
+ *value = v4l2_ctrl.value; |
+ return true; |
+} |
+ |
+const char kUnknownWebcam[] = "Unknown webcam id"; |
+} // namespace |
+ |
+namespace extensions { |
+ |
+WebcamPrivateSetFunction::WebcamPrivateSetFunction() { |
+} |
+ |
+WebcamPrivateSetFunction::~WebcamPrivateSetFunction() { |
+} |
+ |
+bool WebcamPrivateSetFunction::RunImpl() { |
+ // Get parameters |
+ scoped_ptr<api::webcam_private::Set::Params> params( |
+ api::webcam_private::Set::Params::Create(*args_)); |
+ EXTENSION_FUNCTION_VALIDATE(params.get()); |
+ |
+ base::ScopedFD fd = |
+ OpenWebcam(extension_id(), browser_context(), params->webcam_id); |
+ if (!fd.is_valid()) { |
+ SetError(kUnknownWebcam); |
+ return false; |
+ } |
+ |
+ if (params->config.pan) { |
+ SetWebcamParameter(fd.get(), V4L2_CID_PAN_ABSOLUTE, |
+ *(params->config.pan)); |
+ } |
+ |
+ if (params->config.tilt) { |
+ SetWebcamParameter(fd.get(), V4L2_CID_TILT_ABSOLUTE, |
+ *(params->config.tilt)); |
+ } |
+ |
+ if (params->config.zoom) { |
+ SetWebcamParameter(fd.get(), V4L2_CID_ZOOM_ABSOLUTE, |
+ *(params->config.zoom)); |
+ } |
+ |
+ return true; |
+} |
+ |
+WebcamPrivateGetFunction::WebcamPrivateGetFunction() { |
+} |
+ |
+WebcamPrivateGetFunction::~WebcamPrivateGetFunction() { |
+} |
+ |
+bool WebcamPrivateGetFunction::RunImpl() { |
+ // Get parameters |
+ scoped_ptr<api::webcam_private::Get::Params> params( |
+ api::webcam_private::Get::Params::Create(*args_)); |
+ EXTENSION_FUNCTION_VALIDATE(params.get()); |
+ |
+ base::ScopedFD fd = |
+ OpenWebcam(extension_id(), browser_context(), params->webcam_id); |
+ if (!fd.is_valid()) { |
+ SetError(kUnknownWebcam); |
+ return false; |
+ } |
+ |
+ api::webcam_private::WebcamConfiguration result; |
+ |
+ int pan; |
+ if (GetWebcamParameter(fd.get(), V4L2_CID_PAN_ABSOLUTE, &pan)) |
+ result.pan.reset(new double(pan)); |
+ |
+ int tilt; |
+ if (GetWebcamParameter(fd.get(), V4L2_CID_TILT_ABSOLUTE, &tilt)) |
+ result.tilt.reset(new double(tilt)); |
+ |
+ int zoom; |
+ if (GetWebcamParameter(fd.get(), V4L2_CID_ZOOM_ABSOLUTE, &zoom)) |
+ result.zoom.reset(new double(zoom)); |
+ |
+ SetResult(result.ToValue().release()); |
+ |
+ return true; |
+} |
+ |
+WebcamPrivateResetFunction::WebcamPrivateResetFunction() { |
+} |
+ |
+WebcamPrivateResetFunction::~WebcamPrivateResetFunction() { |
+} |
+ |
+bool WebcamPrivateResetFunction::RunImpl() { |
+ // Get parameters |
+ scoped_ptr<api::webcam_private::Reset::Params> params( |
+ api::webcam_private::Reset::Params::Create(*args_)); |
+ EXTENSION_FUNCTION_VALIDATE(params.get()); |
+ |
+ base::ScopedFD fd = |
+ OpenWebcam(extension_id(), browser_context(), params->webcam_id); |
+ if (!fd.is_valid()) { |
+ SetError(kUnknownWebcam); |
+ return false; |
+ } |
+ |
+ if (params->config.pan) { |
+ struct v4l2_control v4l2_ctrl = {V4L2_CID_PAN_RESET}; |
+ HANDLE_EINTR(ioctl(fd.get(), VIDIOC_S_CTRL, &v4l2_ctrl)); |
+ } |
+ |
+ if (params->config.tilt) { |
+ struct v4l2_control v4l2_ctrl = {V4L2_CID_TILT_RESET}; |
+ HANDLE_EINTR(ioctl(fd.get(), VIDIOC_S_CTRL, &v4l2_ctrl)); |
+ } |
+ |
+ if (params->config.zoom) { |
+ const int kDefaultZoom = 100; |
+ SetWebcamParameter(fd.get(), V4L2_CID_ZOOM_ABSOLUTE, kDefaultZoom); |
+ } |
+ |
+ return true; |
+} |
+ |
+} // namespace extensions |