зеркало из https://github.com/mozilla/gecko-dev.git
94 строки
2.7 KiB
Plaintext
94 строки
2.7 KiB
Plaintext
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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include protocol PContent;
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include protocol PBackground;
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include PBackgroundSharedTypes;
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using mozilla::camera::CaptureEngine from "mozilla/media/CamerasTypes.h";
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namespace mozilla {
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namespace camera {
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// IPC analog for webrtc::VideoCaptureCapability
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struct VideoCaptureCapability
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{
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int width;
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int height;
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int maxFPS;
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int videoType;
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bool interlaced;
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};
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// IPC analog for webrtc::VideoFrame
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// the described buffer is transported seperately in a Shmem
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// See VideoFrameUtils.h
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struct VideoFrameProperties
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{
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// Size of image data within the ShMem,
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// the ShMem is at least this large
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uint32_t bufferSize;
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// From webrtc::VideoFrame
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uint32_t timeStamp;
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int64_t ntpTimeMs;
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int64_t renderTimeMs;
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// See webrtc/**/rotation.h
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int rotation;
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int yAllocatedSize;
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int uAllocatedSize;
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int vAllocatedSize;
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// From webrtc::VideoFrameBuffer
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int width;
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int height;
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int yStride;
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int uStride;
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int vStride;
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};
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async protocol PCameras
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{
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manager PBackground;
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child:
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// transfers ownership of |buffer| from parent to child
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async DeliverFrame(CaptureEngine capEngine, int streamId,
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Shmem buffer, VideoFrameProperties props);
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async DeviceChange();
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async ReplyNumberOfCaptureDevices(int numdev);
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async ReplyNumberOfCapabilities(int numdev);
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async ReplyAllocateCaptureDevice(int numdev);
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async ReplyGetCaptureCapability(VideoCaptureCapability cap);
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async ReplyGetCaptureDevice(nsCString device_name, nsCString device_id, bool scary);
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async ReplyFailure();
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async ReplySuccess();
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async __delete__();
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parent:
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async NumberOfCaptureDevices(CaptureEngine engine);
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async NumberOfCapabilities(CaptureEngine engine, nsCString deviceUniqueIdUTF8);
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async GetCaptureCapability(CaptureEngine engine, nsCString unique_idUTF8,
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int capability_number);
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async GetCaptureDevice(CaptureEngine engine, int num);
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async AllocateCaptureDevice(CaptureEngine engine, nsCString unique_idUTF8,
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PrincipalInfo principal);
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async ReleaseCaptureDevice(CaptureEngine engine, int numdev);
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async StartCapture(CaptureEngine engine, int numdev, VideoCaptureCapability capability);
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async FocusOnSelectedSource(CaptureEngine engine, int numdev);
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async StopCapture(CaptureEngine engine, int numdev);
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// transfers frame back
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async ReleaseFrame(Shmem s);
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// Ask parent to delete us
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async AllDone();
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// setup camera engine
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async EnsureInitialized(CaptureEngine engine);
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};
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} // namespace camera
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} // namespace mozilla
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