0d9bb8e499
Remove the need for scoped_ptr<I420VideoFrame> in VieCapturer. This adds the method I420VideoFrame::Reset and replace the use of scoped_ptr in ViECapturer. Also, a unittest is added to check that ViECapturer does not retain a frame after it has been delivered. BUG=1128 R=mflodman@webrtc.org, pbos@webrtc.org Review URL: https://webrtc-codereview.appspot.com/43669004 Cr-Commit-Position: refs/heads/master@{#8678} git-svn-id: http://webrtc.googlecode.com/svn/trunk@8678 4adac7df-926f-26a2-2b94-8c16560cd09d
605 lines
20 KiB
C++
605 lines
20 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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#include "webrtc/video_engine/vie_capturer.h"
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#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
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#include "webrtc/modules/interface/module_common_types.h"
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#include "webrtc/modules/utility/interface/process_thread.h"
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#include "webrtc/modules/video_capture/include/video_capture_factory.h"
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#include "webrtc/modules/video_processing/main/interface/video_processing.h"
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#include "webrtc/modules/video_render/include/video_render_defines.h"
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#include "webrtc/system_wrappers/interface/clock.h"
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#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
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#include "webrtc/system_wrappers/interface/event_wrapper.h"
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#include "webrtc/system_wrappers/interface/logging.h"
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#include "webrtc/system_wrappers/interface/thread_wrapper.h"
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#include "webrtc/system_wrappers/interface/trace_event.h"
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#include "webrtc/video_engine/include/vie_image_process.h"
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#include "webrtc/video_engine/overuse_frame_detector.h"
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#include "webrtc/video_engine/vie_defines.h"
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#include "webrtc/video_engine/vie_encoder.h"
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namespace webrtc {
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const int kThreadWaitTimeMs = 100;
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class RegistrableCpuOveruseMetricsObserver : public CpuOveruseMetricsObserver {
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public:
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void CpuOveruseMetricsUpdated(const CpuOveruseMetrics& metrics) override {
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rtc::CritScope lock(&crit_);
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if (observer_)
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observer_->CpuOveruseMetricsUpdated(metrics);
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metrics_ = metrics;
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}
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CpuOveruseMetrics GetCpuOveruseMetrics() const {
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rtc::CritScope lock(&crit_);
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return metrics_;
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}
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void Set(CpuOveruseMetricsObserver* observer) {
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rtc::CritScope lock(&crit_);
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observer_ = observer;
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}
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private:
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mutable rtc::CriticalSection crit_;
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CpuOveruseMetricsObserver* observer_ GUARDED_BY(crit_) = nullptr;
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CpuOveruseMetrics metrics_ GUARDED_BY(crit_);
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};
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ViECapturer::ViECapturer(int capture_id,
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int engine_id,
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const Config& config,
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ProcessThread& module_process_thread)
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: ViEFrameProviderBase(capture_id, engine_id),
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capture_cs_(CriticalSectionWrapper::CreateCriticalSection()),
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effects_and_stats_cs_(CriticalSectionWrapper::CreateCriticalSection()),
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capture_module_(NULL),
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external_capture_module_(NULL),
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module_process_thread_(module_process_thread),
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capture_id_(capture_id),
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incoming_frame_cs_(CriticalSectionWrapper::CreateCriticalSection()),
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capture_thread_(*ThreadWrapper::CreateThread(ViECaptureThreadFunction,
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this,
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kHighPriority,
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"ViECaptureThread")),
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capture_event_(*EventWrapper::Create()),
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deliver_event_(*EventWrapper::Create()),
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stop_(0),
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effect_filter_(NULL),
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image_proc_module_(NULL),
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image_proc_module_ref_counter_(0),
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deflicker_frame_stats_(NULL),
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brightness_frame_stats_(NULL),
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current_brightness_level_(Normal),
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reported_brightness_level_(Normal),
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observer_cs_(CriticalSectionWrapper::CreateCriticalSection()),
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observer_(NULL),
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cpu_overuse_metrics_observer_(new RegistrableCpuOveruseMetricsObserver()),
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overuse_detector_(
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new OveruseFrameDetector(Clock::GetRealTimeClock(),
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cpu_overuse_metrics_observer_.get())) {
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unsigned int t_id = 0;
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if (!capture_thread_.Start(t_id)) {
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assert(false);
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}
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module_process_thread_.RegisterModule(overuse_detector_.get());
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}
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ViECapturer::~ViECapturer() {
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module_process_thread_.DeRegisterModule(overuse_detector_.get());
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// Stop the thread.
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rtc::AtomicOps::Increment(&stop_);
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capture_event_.Set();
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// Stop the camera input.
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if (capture_module_) {
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module_process_thread_.DeRegisterModule(capture_module_);
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capture_module_->DeRegisterCaptureDataCallback();
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capture_module_->Release();
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capture_module_ = NULL;
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}
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if (capture_thread_.Stop()) {
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// Thread stopped.
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delete &capture_thread_;
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delete &capture_event_;
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delete &deliver_event_;
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} else {
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assert(false);
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}
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if (image_proc_module_) {
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VideoProcessingModule::Destroy(image_proc_module_);
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}
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if (deflicker_frame_stats_) {
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delete deflicker_frame_stats_;
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deflicker_frame_stats_ = NULL;
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}
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delete brightness_frame_stats_;
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}
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ViECapturer* ViECapturer::CreateViECapture(
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int capture_id,
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int engine_id,
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const Config& config,
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VideoCaptureModule* capture_module,
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ProcessThread& module_process_thread) {
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ViECapturer* capture = new ViECapturer(capture_id, engine_id, config,
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module_process_thread);
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if (!capture || capture->Init(capture_module) != 0) {
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delete capture;
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capture = NULL;
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}
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return capture;
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}
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int32_t ViECapturer::Init(VideoCaptureModule* capture_module) {
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assert(capture_module_ == NULL);
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capture_module_ = capture_module;
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capture_module_->RegisterCaptureDataCallback(*this);
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capture_module_->AddRef();
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module_process_thread_.RegisterModule(capture_module_);
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return 0;
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}
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ViECapturer* ViECapturer::CreateViECapture(
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int capture_id,
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int engine_id,
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const Config& config,
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const char* device_unique_idUTF8,
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const uint32_t device_unique_idUTF8Length,
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ProcessThread& module_process_thread) {
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ViECapturer* capture = new ViECapturer(capture_id, engine_id, config,
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module_process_thread);
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if (!capture ||
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capture->Init(device_unique_idUTF8, device_unique_idUTF8Length) != 0) {
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delete capture;
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capture = NULL;
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}
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return capture;
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}
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int32_t ViECapturer::Init(const char* device_unique_idUTF8,
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uint32_t device_unique_idUTF8Length) {
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assert(capture_module_ == NULL);
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if (device_unique_idUTF8 == NULL) {
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capture_module_ = VideoCaptureFactory::Create(
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ViEModuleId(engine_id_, capture_id_), external_capture_module_);
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} else {
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capture_module_ = VideoCaptureFactory::Create(
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ViEModuleId(engine_id_, capture_id_), device_unique_idUTF8);
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}
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if (!capture_module_) {
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return -1;
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}
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capture_module_->AddRef();
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capture_module_->RegisterCaptureDataCallback(*this);
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module_process_thread_.RegisterModule(capture_module_);
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return 0;
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}
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int ViECapturer::FrameCallbackChanged() {
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if (Started() && !CaptureCapabilityFixed()) {
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// Reconfigure the camera if a new size is required and the capture device
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// does not provide encoded frames.
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int best_width;
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int best_height;
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int best_frame_rate;
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VideoCaptureCapability capture_settings;
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capture_module_->CaptureSettings(capture_settings);
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GetBestFormat(&best_width, &best_height, &best_frame_rate);
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if (best_width != 0 && best_height != 0 && best_frame_rate != 0) {
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if (best_width != capture_settings.width ||
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best_height != capture_settings.height ||
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best_frame_rate != capture_settings.maxFPS ||
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capture_settings.codecType != kVideoCodecUnknown) {
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Stop();
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Start(requested_capability_);
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}
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}
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}
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return 0;
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}
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int32_t ViECapturer::Start(const CaptureCapability& capture_capability) {
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int width;
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int height;
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int frame_rate;
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VideoCaptureCapability capability;
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requested_capability_ = capture_capability;
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if (!CaptureCapabilityFixed()) {
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// Ask the observers for best size.
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GetBestFormat(&width, &height, &frame_rate);
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if (width == 0) {
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width = kViECaptureDefaultWidth;
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}
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if (height == 0) {
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height = kViECaptureDefaultHeight;
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}
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if (frame_rate == 0) {
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frame_rate = kViECaptureDefaultFramerate;
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}
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capability.height = height;
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capability.width = width;
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capability.maxFPS = frame_rate;
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capability.rawType = kVideoI420;
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capability.codecType = kVideoCodecUnknown;
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} else {
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// Width, height and type specified with call to Start, not set by
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// observers.
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capability.width = requested_capability_.width;
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capability.height = requested_capability_.height;
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capability.maxFPS = requested_capability_.maxFPS;
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capability.rawType = requested_capability_.rawType;
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capability.interlaced = requested_capability_.interlaced;
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}
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return capture_module_->StartCapture(capability);
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}
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int32_t ViECapturer::Stop() {
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requested_capability_ = CaptureCapability();
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return capture_module_->StopCapture();
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}
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bool ViECapturer::Started() {
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return capture_module_->CaptureStarted();
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}
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const char* ViECapturer::CurrentDeviceName() const {
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return capture_module_->CurrentDeviceName();
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}
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void ViECapturer::RegisterCpuOveruseObserver(CpuOveruseObserver* observer) {
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overuse_detector_->SetObserver(observer);
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}
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void ViECapturer::SetCpuOveruseOptions(const CpuOveruseOptions& options) {
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overuse_detector_->SetOptions(options);
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}
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void ViECapturer::RegisterCpuOveruseMetricsObserver(
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CpuOveruseMetricsObserver* observer) {
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cpu_overuse_metrics_observer_->Set(observer);
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}
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void ViECapturer::GetCpuOveruseMetrics(CpuOveruseMetrics* metrics) const {
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*metrics = cpu_overuse_metrics_observer_->GetCpuOveruseMetrics();
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}
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int32_t ViECapturer::SetCaptureDelay(int32_t delay_ms) {
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capture_module_->SetCaptureDelay(delay_ms);
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return 0;
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}
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int32_t ViECapturer::SetVideoRotation(const VideoRotation rotation) {
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return capture_module_->SetCaptureRotation(rotation);
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}
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int ViECapturer::IncomingFrame(unsigned char* video_frame,
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size_t video_frame_length,
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uint16_t width,
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uint16_t height,
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RawVideoType video_type,
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unsigned long long capture_time) { // NOLINT
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if (!external_capture_module_) {
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return -1;
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}
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VideoCaptureCapability capability;
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capability.width = width;
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capability.height = height;
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capability.rawType = video_type;
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return external_capture_module_->IncomingFrame(video_frame,
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video_frame_length,
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capability, capture_time);
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}
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int ViECapturer::IncomingFrameI420(const ViEVideoFrameI420& video_frame,
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unsigned long long capture_time) { // NOLINT
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if (!external_capture_module_) {
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return -1;
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}
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int size_y = video_frame.height * video_frame.y_pitch;
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int size_u = video_frame.u_pitch * ((video_frame.height + 1) / 2);
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int size_v = video_frame.v_pitch * ((video_frame.height + 1) / 2);
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CriticalSectionScoped cs(incoming_frame_cs_.get());
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int ret = incoming_frame_.CreateFrame(size_y,
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video_frame.y_plane,
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size_u,
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video_frame.u_plane,
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size_v,
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video_frame.v_plane,
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video_frame.width,
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video_frame.height,
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video_frame.y_pitch,
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video_frame.u_pitch,
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video_frame.v_pitch);
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if (ret < 0) {
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LOG_F(LS_ERROR) << "Could not create I420Frame.";
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return -1;
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}
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return external_capture_module_->IncomingI420VideoFrame(&incoming_frame_,
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capture_time);
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}
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void ViECapturer::SwapFrame(I420VideoFrame* frame) {
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external_capture_module_->IncomingI420VideoFrame(frame,
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frame->render_time_ms());
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frame->set_timestamp(0);
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frame->set_ntp_time_ms(0);
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frame->set_render_time_ms(0);
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}
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void ViECapturer::OnIncomingCapturedFrame(const int32_t capture_id,
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I420VideoFrame& video_frame) {
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CriticalSectionScoped cs(capture_cs_.get());
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// Make sure we render this frame earlier since we know the render time set
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// is slightly off since it's being set when the frame has been received from
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// the camera, and not when the camera actually captured the frame.
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video_frame.set_render_time_ms(video_frame.render_time_ms() - FrameDelay());
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overuse_detector_->FrameCaptured(video_frame.width(),
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video_frame.height(),
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video_frame.render_time_ms());
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TRACE_EVENT_ASYNC_BEGIN1("webrtc", "Video", video_frame.render_time_ms(),
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"render_time", video_frame.render_time_ms());
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captured_frame_ = video_frame;
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capture_event_.Set();
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}
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void ViECapturer::OnCaptureDelayChanged(const int32_t id,
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const int32_t delay) {
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LOG(LS_INFO) << "Capture delayed change to " << delay
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<< " for device " << id;
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// Deliver the network delay to all registered callbacks.
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ViEFrameProviderBase::SetFrameDelay(delay);
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}
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int32_t ViECapturer::RegisterEffectFilter(
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ViEEffectFilter* effect_filter) {
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CriticalSectionScoped cs(effects_and_stats_cs_.get());
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if (effect_filter != NULL && effect_filter_ != NULL) {
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LOG_F(LS_ERROR) << "Effect filter already registered.";
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return -1;
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}
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effect_filter_ = effect_filter;
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return 0;
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}
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int32_t ViECapturer::IncImageProcRefCount() {
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if (!image_proc_module_) {
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assert(image_proc_module_ref_counter_ == 0);
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image_proc_module_ = VideoProcessingModule::Create(
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ViEModuleId(engine_id_, capture_id_));
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if (!image_proc_module_) {
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LOG_F(LS_ERROR) << "Could not create video processing module.";
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return -1;
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}
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}
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image_proc_module_ref_counter_++;
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return 0;
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}
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int32_t ViECapturer::DecImageProcRefCount() {
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image_proc_module_ref_counter_--;
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if (image_proc_module_ref_counter_ == 0) {
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// Destroy module.
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VideoProcessingModule::Destroy(image_proc_module_);
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image_proc_module_ = NULL;
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}
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return 0;
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}
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int32_t ViECapturer::EnableDeflickering(bool enable) {
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CriticalSectionScoped cs(effects_and_stats_cs_.get());
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if (enable) {
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if (deflicker_frame_stats_) {
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return -1;
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}
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if (IncImageProcRefCount() != 0) {
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return -1;
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}
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deflicker_frame_stats_ = new VideoProcessingModule::FrameStats();
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} else {
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if (deflicker_frame_stats_ == NULL) {
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return -1;
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}
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DecImageProcRefCount();
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delete deflicker_frame_stats_;
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deflicker_frame_stats_ = NULL;
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}
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return 0;
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}
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int32_t ViECapturer::EnableBrightnessAlarm(bool enable) {
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CriticalSectionScoped cs(effects_and_stats_cs_.get());
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if (enable) {
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if (brightness_frame_stats_) {
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return -1;
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}
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if (IncImageProcRefCount() != 0) {
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return -1;
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}
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brightness_frame_stats_ = new VideoProcessingModule::FrameStats();
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} else {
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DecImageProcRefCount();
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if (brightness_frame_stats_ == NULL) {
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return -1;
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}
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delete brightness_frame_stats_;
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brightness_frame_stats_ = NULL;
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}
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return 0;
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}
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bool ViECapturer::ViECaptureThreadFunction(void* obj) {
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return static_cast<ViECapturer*>(obj)->ViECaptureProcess();
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}
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bool ViECapturer::ViECaptureProcess() {
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int64_t capture_time = -1;
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if (capture_event_.Wait(kThreadWaitTimeMs) == kEventSignaled) {
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if (rtc::AtomicOps::Load(&stop_))
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return false;
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overuse_detector_->FrameProcessingStarted();
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int64_t encode_start_time = -1;
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I420VideoFrame deliver_frame;
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{
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CriticalSectionScoped cs(capture_cs_.get());
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if (!captured_frame_.IsZeroSize()) {
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deliver_frame = captured_frame_;
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captured_frame_.Reset();
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}
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}
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if (!deliver_frame.IsZeroSize()) {
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capture_time = deliver_frame.render_time_ms();
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encode_start_time = Clock::GetRealTimeClock()->TimeInMilliseconds();
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DeliverI420Frame(&deliver_frame);
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}
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if (current_brightness_level_ != reported_brightness_level_) {
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CriticalSectionScoped cs(observer_cs_.get());
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if (observer_) {
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observer_->BrightnessAlarm(id_, current_brightness_level_);
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reported_brightness_level_ = current_brightness_level_;
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}
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}
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// Update the overuse detector with the duration.
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if (encode_start_time != -1) {
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overuse_detector_->FrameEncoded(
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Clock::GetRealTimeClock()->TimeInMilliseconds() - encode_start_time);
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}
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}
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// We're done!
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if (capture_time != -1) {
|
|
overuse_detector_->FrameSent(capture_time);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void ViECapturer::DeliverI420Frame(I420VideoFrame* video_frame) {
|
|
if (video_frame->native_handle() != NULL) {
|
|
ViEFrameProviderBase::DeliverFrame(video_frame, std::vector<uint32_t>());
|
|
return;
|
|
}
|
|
|
|
// Apply image enhancement and effect filter.
|
|
{
|
|
CriticalSectionScoped cs(effects_and_stats_cs_.get());
|
|
if (deflicker_frame_stats_) {
|
|
if (image_proc_module_->GetFrameStats(deflicker_frame_stats_,
|
|
*video_frame) == 0) {
|
|
image_proc_module_->Deflickering(video_frame, deflicker_frame_stats_);
|
|
} else {
|
|
LOG_F(LS_ERROR) << "Could not get frame stats.";
|
|
}
|
|
}
|
|
if (brightness_frame_stats_) {
|
|
if (image_proc_module_->GetFrameStats(brightness_frame_stats_,
|
|
*video_frame) == 0) {
|
|
int32_t brightness = image_proc_module_->BrightnessDetection(
|
|
*video_frame, *brightness_frame_stats_);
|
|
|
|
switch (brightness) {
|
|
case VideoProcessingModule::kNoWarning:
|
|
current_brightness_level_ = Normal;
|
|
break;
|
|
case VideoProcessingModule::kDarkWarning:
|
|
current_brightness_level_ = Dark;
|
|
break;
|
|
case VideoProcessingModule::kBrightWarning:
|
|
current_brightness_level_ = Bright;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (effect_filter_) {
|
|
size_t length =
|
|
CalcBufferSize(kI420, video_frame->width(), video_frame->height());
|
|
rtc::scoped_ptr<uint8_t[]> video_buffer(new uint8_t[length]);
|
|
ExtractBuffer(*video_frame, length, video_buffer.get());
|
|
effect_filter_->Transform(length,
|
|
video_buffer.get(),
|
|
video_frame->ntp_time_ms(),
|
|
video_frame->timestamp(),
|
|
video_frame->width(),
|
|
video_frame->height());
|
|
}
|
|
}
|
|
// Deliver the captured frame to all observers (channels, renderer or file).
|
|
ViEFrameProviderBase::DeliverFrame(video_frame, std::vector<uint32_t>());
|
|
}
|
|
|
|
bool ViECapturer::CaptureCapabilityFixed() {
|
|
return requested_capability_.width != 0 &&
|
|
requested_capability_.height != 0 &&
|
|
requested_capability_.maxFPS != 0;
|
|
}
|
|
|
|
int32_t ViECapturer::RegisterObserver(ViECaptureObserver* observer) {
|
|
{
|
|
CriticalSectionScoped cs(observer_cs_.get());
|
|
if (observer_) {
|
|
LOG_F(LS_ERROR) << "Observer already registered.";
|
|
return -1;
|
|
}
|
|
observer_ = observer;
|
|
}
|
|
capture_module_->RegisterCaptureCallback(*this);
|
|
capture_module_->EnableFrameRateCallback(true);
|
|
capture_module_->EnableNoPictureAlarm(true);
|
|
return 0;
|
|
}
|
|
|
|
int32_t ViECapturer::DeRegisterObserver() {
|
|
capture_module_->EnableFrameRateCallback(false);
|
|
capture_module_->EnableNoPictureAlarm(false);
|
|
capture_module_->DeRegisterCaptureCallback();
|
|
|
|
CriticalSectionScoped cs(observer_cs_.get());
|
|
observer_ = NULL;
|
|
return 0;
|
|
}
|
|
|
|
bool ViECapturer::IsObserverRegistered() {
|
|
CriticalSectionScoped cs(observer_cs_.get());
|
|
return observer_ != NULL;
|
|
}
|
|
|
|
void ViECapturer::OnCaptureFrameRate(const int32_t id,
|
|
const uint32_t frame_rate) {
|
|
CriticalSectionScoped cs(observer_cs_.get());
|
|
observer_->CapturedFrameRate(id_, static_cast<uint8_t>(frame_rate));
|
|
}
|
|
|
|
void ViECapturer::OnNoPictureAlarm(const int32_t id,
|
|
const VideoCaptureAlarm alarm) {
|
|
LOG(LS_WARNING) << "OnNoPictureAlarm " << id;
|
|
|
|
CriticalSectionScoped cs(observer_cs_.get());
|
|
CaptureAlarm vie_alarm = (alarm == Raised) ? AlarmRaised : AlarmCleared;
|
|
observer_->NoPictureAlarm(id, vie_alarm);
|
|
}
|
|
|
|
} // namespace webrtc
|