gecko-dev/dom/media/systemservices/PCameras.ipdl

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
include protocol PContent;
include protocol PBackground;
using mozilla::camera::CaptureEngine from "mozilla/media/CamerasTypes.h";
namespace mozilla {
namespace camera {
struct CaptureCapability
{
int width;
int height;
int maxFPS;
int expectedCaptureDelay;
int rawType;
int codecType;
bool interlaced;
};
async protocol PCameras
{
manager PBackground;
child:
async FrameSizeChange(CaptureEngine capEngine, int cap_id, int w, int h);
// transfers ownership of |buffer| from parent to child
async DeliverFrame(CaptureEngine capEngine, int cap_id,
Shmem buffer, size_t size, uint32_t time_stamp,
int64_t ntp_time, int64_t render_time);
async DeviceChange();
async ReplyNumberOfCaptureDevices(int numdev);
async ReplyNumberOfCapabilities(int numdev);
async ReplyAllocateCaptureDevice(int numdev);
async ReplyGetCaptureCapability(CaptureCapability cap);
async ReplyGetCaptureDevice(nsCString device_name, nsCString device_id, bool scary);
async ReplyFailure();
async ReplySuccess();
async __delete__();
parent:
async NumberOfCaptureDevices(CaptureEngine engine);
async NumberOfCapabilities(CaptureEngine engine, nsCString deviceUniqueIdUTF8);
async GetCaptureCapability(CaptureEngine engine, nsCString unique_idUTF8, int capability_number);
async GetCaptureDevice(CaptureEngine engine, int num);
async AllocateCaptureDevice(CaptureEngine engine, nsCString unique_idUTF8, nsCString origin);
async ReleaseCaptureDevice(CaptureEngine engine, int numdev);
async StartCapture(CaptureEngine engine, int numdev, CaptureCapability capability);
async StopCapture(CaptureEngine engine, int numdev);
// transfers frame back
async ReleaseFrame(Shmem s);
// Ask parent to delete us
async AllDone();
// setup camera engine
async EnsureInitialized(CaptureEngine engine);
};
} // namespace camera
} // namespace mozilla