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/*
* Copyright (c) 2013 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.
*/
#include "test/vcm_capturer.h"
#include "call/video_send_stream.h"
#include "modules/video_capture/video_capture_factory.h"
#include "rtc_base/logging.h"
namespace webrtc {
namespace test {
VcmCapturer::VcmCapturer() : started_(false), sink_(nullptr), vcm_(nullptr) {}
bool VcmCapturer::Init(size_t width,
size_t height,
size_t target_fps,
size_t capture_device_index) {
std::unique_ptr<VideoCaptureModule::DeviceInfo> device_info(
VideoCaptureFactory::CreateDeviceInfo());
char device_name[256];
char unique_name[256];
if (device_info->GetDeviceName(static_cast<uint32_t>(capture_device_index),
device_name, sizeof(device_name), unique_name,
sizeof(unique_name)) != 0) {
Destroy();
return false;
}
vcm_ = webrtc::VideoCaptureFactory::Create(unique_name);
vcm_->RegisterCaptureDataCallback(this);
device_info->GetCapability(vcm_->CurrentDeviceName(), 0, capability_);
capability_.width = static_cast<int32_t>(width);
capability_.height = static_cast<int32_t>(height);
capability_.maxFPS = static_cast<int32_t>(target_fps);
capability_.videoType = VideoType::kI420;
if (vcm_->StartCapture(capability_) != 0) {
Destroy();
return false;
}
RTC_CHECK(vcm_->CaptureStarted());
return true;
}
VcmCapturer* VcmCapturer::Create(size_t width,
size_t height,
size_t target_fps,
size_t capture_device_index) {
std::unique_ptr<VcmCapturer> vcm_capturer(new VcmCapturer());
if (!vcm_capturer->Init(width, height, target_fps, capture_device_index)) {
RTC_LOG(LS_WARNING) << "Failed to create VcmCapturer(w = " << width
<< ", h = " << height << ", fps = " << target_fps
<< ")";
return nullptr;
}
return vcm_capturer.release();
}
void VcmCapturer::Start() {
rtc::CritScope lock(&crit_);
started_ = true;
}
void VcmCapturer::Stop() {
rtc::CritScope lock(&crit_);
started_ = false;
}
void VcmCapturer::AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
const rtc::VideoSinkWants& wants) {
rtc::CritScope lock(&crit_);
RTC_CHECK(!sink_ || sink_ == sink);
sink_ = sink;
TestVideoCapturer::AddOrUpdateSink(sink, wants);
}
void VcmCapturer::RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) {
rtc::CritScope lock(&crit_);
RTC_CHECK(sink_ == sink);
sink_ = nullptr;
}
void VcmCapturer::Destroy() {
if (!vcm_)
return;
vcm_->StopCapture();
vcm_->DeRegisterCaptureDataCallback();
// Release reference to VCM.
vcm_ = nullptr;
}
VcmCapturer::~VcmCapturer() {
Destroy();
}
void VcmCapturer::OnFrame(const VideoFrame& frame) {
rtc::CritScope lock(&crit_);
if (started_ && sink_) {
absl::optional<VideoFrame> out_frame = AdaptFrame(frame);
if (out_frame)
sink_->OnFrame(*out_frame);
}
}
} // namespace test
} // namespace webrtc
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