36a1438a66
BUG=1695 R=stefan@webrtc.org Review URL: https://webrtc-codereview.appspot.com/49349004 Cr-Commit-Position: refs/heads/master@{#9252}
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/*
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* Copyright (c) 2012 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_VIDEO_ENGINE_VIE_CAPTURER_H_
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#define WEBRTC_VIDEO_ENGINE_VIE_CAPTURER_H_
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#include <vector>
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/scoped_ptr.h"
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#include "webrtc/base/thread_annotations.h"
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#include "webrtc/common_types.h"
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#include "webrtc/engine_configurations.h"
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#include "webrtc/modules/video_capture/include/video_capture.h"
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#include "webrtc/modules/video_coding/codecs/interface/video_codec_interface.h"
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#include "webrtc/modules/video_coding/main/interface/video_coding.h"
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#include "webrtc/modules/video_processing/main/interface/video_processing.h"
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#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
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#include "webrtc/system_wrappers/interface/thread_wrapper.h"
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#include "webrtc/typedefs.h"
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#include "webrtc/video_engine/vie_defines.h"
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namespace webrtc {
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class Config;
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class CpuOveruseMetricsObserver;
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class CpuOveruseObserver;
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class CriticalSectionWrapper;
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class EventWrapper;
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class OveruseFrameDetector;
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class ProcessThread;
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class RegistrableCpuOveruseMetricsObserver;
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class ViEEffectFilter;
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class ViEFrameCallback {
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public:
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virtual ~ViEFrameCallback() {}
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virtual void DeliverFrame(I420VideoFrame video_frame) = 0;
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};
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class ViECapturer {
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public:
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ViECapturer(ProcessThread* module_process_thread,
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ViEFrameCallback* frame_callback);
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~ViECapturer();
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void IncomingFrame(const I420VideoFrame& frame);
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void RegisterCpuOveruseObserver(CpuOveruseObserver* observer);
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void RegisterCpuOveruseMetricsObserver(CpuOveruseMetricsObserver* observer);
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protected:
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// Help function used for keeping track of VideoImageProcesingModule.
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// Creates the module if it is needed, returns 0 on success and guarantees
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// that the image proc module exist.
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int32_t IncImageProcRefCount();
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int32_t DecImageProcRefCount();
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// Thread functions for deliver captured frames to receivers.
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static bool ViECaptureThreadFunction(void* obj);
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bool ViECaptureProcess();
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private:
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void DeliverI420Frame(I420VideoFrame* video_frame);
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rtc::scoped_ptr<CriticalSectionWrapper> capture_cs_;
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ProcessThread* const module_process_thread_;
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ViEFrameCallback* const frame_callback_;
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// Frame used in IncomingFrameI420.
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rtc::scoped_ptr<CriticalSectionWrapper> incoming_frame_cs_;
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I420VideoFrame incoming_frame_;
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// Capture thread.
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rtc::scoped_ptr<ThreadWrapper> capture_thread_;
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// TODO(pbos): scoped_ptr
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EventWrapper& capture_event_;
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EventWrapper& deliver_event_;
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volatile int stop_;
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I420VideoFrame captured_frame_ GUARDED_BY(capture_cs_.get());
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// Used to make sure incoming time stamp is increasing for every frame.
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int64_t last_captured_timestamp_;
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// Delta used for translating between NTP and internal timestamps.
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const int64_t delta_ntp_internal_ms_;
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// Must be declared before overuse_detector_ where it's registered.
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const rtc::scoped_ptr<RegistrableCpuOveruseMetricsObserver>
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cpu_overuse_metrics_observer_;
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rtc::scoped_ptr<OveruseFrameDetector> overuse_detector_;
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};
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} // namespace webrtc
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#endif // WEBRTC_VIDEO_ENGINE_VIE_CAPTURER_H_
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