/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "VideoSegment.h" #include "gfx2DGlue.h" #include "ImageContainer.h" #include "Layers.h" #include "mozilla/UniquePtr.h" namespace mozilla { using namespace layers; VideoFrame::VideoFrame(already_AddRefed<Image>& aImage, const gfx::IntSize& aIntrinsicSize) : mImage(aImage), mIntrinsicSize(aIntrinsicSize), mForceBlack(false), mPrincipalHandle(PRINCIPAL_HANDLE_NONE) {} VideoFrame::VideoFrame() : mIntrinsicSize(0, 0), mForceBlack(false), mPrincipalHandle(PRINCIPAL_HANDLE_NONE) {} VideoFrame::~VideoFrame() {} void VideoFrame::SetNull() { mImage = nullptr; mIntrinsicSize = gfx::IntSize(0, 0); mPrincipalHandle = PRINCIPAL_HANDLE_NONE; } void VideoFrame::TakeFrom(VideoFrame* aFrame) { mImage = aFrame->mImage.forget(); mIntrinsicSize = aFrame->mIntrinsicSize; mForceBlack = aFrame->GetForceBlack(); mPrincipalHandle = aFrame->mPrincipalHandle; } /* static */ already_AddRefed<Image> VideoFrame::CreateBlackImage(const gfx::IntSize& aSize) { RefPtr<ImageContainer> container = LayerManager::CreateImageContainer(ImageContainer::ASYNCHRONOUS); RefPtr<PlanarYCbCrImage> image = container->CreatePlanarYCbCrImage(); if (!image) { MOZ_ASSERT(false); return nullptr; } int len = ((aSize.width * aSize.height) * 3 / 2); // Generate a black image. auto frame = MakeUnique<uint8_t[]>(len); int y = aSize.width * aSize.height; // Fill Y plane. memset(frame.get(), 0x10, y); // Fill Cb/Cr planes. memset(frame.get() + y, 0x80, (len - y)); const uint8_t lumaBpp = 8; const uint8_t chromaBpp = 4; layers::PlanarYCbCrData data; data.mYChannel = frame.get(); data.mYSize = gfx::IntSize(aSize.width, aSize.height); data.mYStride = (int32_t) (aSize.width * lumaBpp / 8.0); data.mCbCrStride = (int32_t) (aSize.width * chromaBpp / 8.0); data.mCbChannel = frame.get() + aSize.height * data.mYStride; data.mCrChannel = data.mCbChannel + aSize.height * data.mCbCrStride / 2; data.mCbCrSize = gfx::IntSize(aSize.width / 2, aSize.height / 2); data.mPicX = 0; data.mPicY = 0; data.mPicSize = gfx::IntSize(aSize.width, aSize.height); data.mStereoMode = StereoMode::MONO; // Copies data, so we can free data. if (!image->CopyData(data)) { MOZ_ASSERT(false); return nullptr; } return image.forget(); } VideoChunk::VideoChunk() {} VideoChunk::~VideoChunk() {} void VideoSegment::AppendFrame(already_AddRefed<Image>&& aImage, StreamTime aDuration, const IntSize& aIntrinsicSize, const PrincipalHandle& aPrincipalHandle, bool aForceBlack, TimeStamp aTimeStamp) { VideoChunk* chunk = AppendChunk(aDuration); chunk->mTimeStamp = aTimeStamp; VideoFrame frame(aImage, aIntrinsicSize); frame.SetForceBlack(aForceBlack); frame.SetPrincipalHandle(aPrincipalHandle); chunk->mFrame.TakeFrom(&frame); } VideoSegment::VideoSegment() : MediaSegmentBase<VideoSegment, VideoChunk>(VIDEO) {} VideoSegment::~VideoSegment() {} } // namespace mozilla