0bade0df3b
WebRTC no longer has any restriction on what thread frames should be delivered on. One possible problem with this CL is that NV21->I420 conversion and scaling is done on the thread that delivers frames, which might cause fps regressions. R=nisse@webrtc.org, perkj@webrtc.org, tkchin@webrtc.org Review URL: https://codereview.webrtc.org/2137503003 . Cr-Commit-Position: refs/heads/master@{#14021}
69 lines
2.1 KiB
Objective-C
69 lines
2.1 KiB
Objective-C
/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
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#define WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
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#import <AVFoundation/AVFoundation.h>
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#include "webrtc/common_video/include/i420_buffer_pool.h"
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#include "webrtc/media/base/videocapturer.h"
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#include "webrtc/video_frame.h"
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@class RTCAVFoundationVideoCapturerInternal;
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namespace rtc {
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class Thread;
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} // namespace rtc
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namespace webrtc {
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class AVFoundationVideoCapturer : public cricket::VideoCapturer {
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public:
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AVFoundationVideoCapturer();
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~AVFoundationVideoCapturer();
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cricket::CaptureState Start(const cricket::VideoFormat& format) override;
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void Stop() override;
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bool IsRunning() override;
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bool IsScreencast() const override {
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return false;
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}
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bool GetPreferredFourccs(std::vector<uint32_t> *fourccs) override {
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fourccs->push_back(cricket::FOURCC_NV12);
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return true;
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}
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// Returns the active capture session. Calls to the capture session should
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// occur on the RTCDispatcherTypeCaptureSession queue in RTCDispatcher.
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AVCaptureSession* GetCaptureSession();
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// Returns whether the rear-facing camera can be used.
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// e.g. It can't be used because it doesn't exist.
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bool CanUseBackCamera() const;
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// Switches the camera being used (either front or back).
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void SetUseBackCamera(bool useBackCamera);
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bool GetUseBackCamera() const;
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// Converts the sample buffer into a cricket::CapturedFrame and signals the
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// frame for capture.
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void CaptureSampleBuffer(CMSampleBufferRef sample_buffer,
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webrtc::VideoRotation rotation);
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private:
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RTCAVFoundationVideoCapturerInternal *_capturer;
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webrtc::I420BufferPool _buffer_pool;
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}; // AVFoundationVideoCapturer
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} // namespace webrtc
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#endif // WEBRTC_API_OBJC_AVFOUNDATION_VIDEO_CAPTURER_H_
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