blob: 5ce0462cff12a258fcbbbe7b68d3f34fcbaaf4c8 [file] [log] [blame]
* Copyright 2015 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#import <AVFoundation/AVFoundation.h>
#include "webrtc/common_video/include/i420_buffer_pool.h"
#include "webrtc/media/base/videocapturer.h"
#include "webrtc/video_frame.h"
@class RTCAVFoundationVideoCapturerInternal;
namespace rtc {
class Thread;
} // namespace rtc
namespace webrtc {
class AVFoundationVideoCapturer : public cricket::VideoCapturer,
public rtc::MessageHandler {
cricket::CaptureState Start(const cricket::VideoFormat& format) override;
void Stop() override;
bool IsRunning() override;
bool IsScreencast() const override {
return false;
bool GetPreferredFourccs(std::vector<uint32_t> *fourccs) override {
return true;
// Returns the active capture session. Calls to the capture session should
// occur on the RTCDispatcherTypeCaptureSession queue in RTCDispatcher.
AVCaptureSession* GetCaptureSession();
// Returns whether the rear-facing camera can be used.
// e.g. It can't be used because it doesn't exist.
bool CanUseBackCamera() const;
// Switches the camera being used (either front or back).
void SetUseBackCamera(bool useBackCamera);
bool GetUseBackCamera() const;
// Converts the sample buffer into a cricket::CapturedFrame and signals the
// frame for capture.
void CaptureSampleBuffer(CMSampleBufferRef sample_buffer,
webrtc::VideoRotation rotation);
// Handles messages from posts.
void OnMessage(rtc::Message *msg) override;
void OnFrameMessage(CVImageBufferRef image_buffer,
webrtc::VideoRotation rotation,
int64_t capture_time_ns);
RTCAVFoundationVideoCapturerInternal *_capturer;
rtc::Thread *_startThread; // Set in Start(), unset in Stop().
webrtc::I420BufferPool _buffer_pool;
}; // AVFoundationVideoCapturer
} // namespace webrtc