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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/390223051): Remove C-library calls to fix the errors.
#pragma allow_unsafe_libc_calls
#endif
#include "components/mirroring/service/fake_video_capture_host.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "media/base/video_frame.h"
#include "media/capture/mojom/video_capture_buffer.mojom.h"
#include "media/capture/mojom/video_capture_types.mojom.h"
namespace mirroring {
namespace {
// Video buffer parameters.
constexpr bool kNotPremapped = false;
} // namespace
FakeVideoCaptureHost::FakeVideoCaptureHost(
mojo::PendingReceiver<media::mojom::VideoCaptureHost> receiver)
: receiver_(this, std::move(receiver)) {}
FakeVideoCaptureHost::~FakeVideoCaptureHost() {
Stop(base::UnguessableToken());
}
void FakeVideoCaptureHost::Start(
const base::UnguessableToken& device_id,
const base::UnguessableToken& session_id,
const media::VideoCaptureParams& params,
mojo::PendingRemote<media::mojom::VideoCaptureObserver> observer) {
ASSERT_TRUE(observer);
last_params_ = params;
observer_.Bind(std::move(observer));
observer_->OnStateChanged(media::mojom::VideoCaptureResult::NewState(
media::mojom::VideoCaptureState::STARTED));
}
void FakeVideoCaptureHost::Stop(const base::UnguessableToken& device_id) {
if (!observer_) {
return;
}
observer_->OnStateChanged(media::mojom::VideoCaptureResult::NewState(
media::mojom::VideoCaptureState::ENDED));
observer_.reset();
OnStopped();
}
void FakeVideoCaptureHost::Pause(const base::UnguessableToken& device_id) {
paused_ = true;
}
void FakeVideoCaptureHost::Resume(const base::UnguessableToken& device_id,
const base::UnguessableToken& session_id,
const media::VideoCaptureParams& params) {
paused_ = false;
}
void FakeVideoCaptureHost::SendOneFrame(const gfx::Size& size,
base::TimeTicks capture_time) {
if (!observer_) {
return;
}
auto shmem = base::ReadOnlySharedMemoryRegion::Create(5000);
if (!shmem.IsValid()) {
return;
}
memset(shmem.mapping.memory(), 125, 5000);
observer_->OnNewBuffer(
0, media::mojom::VideoBufferHandle::NewReadOnlyShmemRegion(
std::move(shmem.region)));
media::VideoFrameMetadata metadata;
metadata.frame_rate = 30;
metadata.reference_time = capture_time;
media::mojom::ReadyBufferPtr buffer = media::mojom::ReadyBuffer::New(
0, media::mojom::VideoFrameInfo::New(
base::TimeDelta(), metadata, media::PIXEL_FORMAT_I420, size,
gfx::Rect(size), kNotPremapped, gfx::ColorSpace::CreateREC709(),
nullptr));
observer_->OnBufferReady(std::move(buffer));
}
media::VideoCaptureParams FakeVideoCaptureHost::GetVideoCaptureParams() const {
return last_params_;
}
} // namespace mirroring
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