Index: chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
diff --git a/chrome/browser/extensions/api/webcam_private/webcam_private_api.cc b/chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
similarity index 32% |
rename from chrome/browser/extensions/api/webcam_private/webcam_private_api.cc |
rename to chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
index f956ba4a11d4f056906d3fec1168d3f802cca9c6..e4ebbc25b7ec3197bd9697759fb5f5b7ee8beb0e 100644 |
--- a/chrome/browser/extensions/api/webcam_private/webcam_private_api.cc |
+++ b/chrome/browser/extensions/api/webcam_private/webcam_private_api_chromeos.cc |
@@ -4,8 +4,49 @@ |
#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() { |
@@ -20,7 +61,27 @@ bool WebcamPrivateSetFunction::RunImpl() { |
api::webcam_private::Set::Params::Create(*args_)); |
EXTENSION_FUNCTION_VALIDATE(params.get()); |
- // TODO(zork): Send the value to the webcam. |
+ 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; |
} |
@@ -37,9 +98,30 @@ bool WebcamPrivateGetFunction::RunImpl() { |
api::webcam_private::Get::Params::Create(*args_)); |
EXTENSION_FUNCTION_VALIDATE(params.get()); |
- // TODO(zork): Get the value from the webcam. |
+ base::ScopedFD fd = |
+ OpenWebcam(extension_id(), browser_context(), params->webcam_id); |
+ if (!fd.is_valid()) { |
+ SetError(kUnknownWebcam); |
+ return false; |
+ } |
+ |
+ api::webcam_private::WebcamConfiguration result; |
- return false; |
+ 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() { |
@@ -54,7 +136,27 @@ bool WebcamPrivateResetFunction::RunImpl() { |
api::webcam_private::Reset::Params::Create(*args_)); |
EXTENSION_FUNCTION_VALIDATE(params.get()); |
- // TODO(zork): Reset the webcam state. |
+ 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; |
} |