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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/media/VideoSegment.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/VideoSegment.cpp')
-rw-r--r-- | dom/media/VideoSegment.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/dom/media/VideoSegment.cpp b/dom/media/VideoSegment.cpp new file mode 100644 index 0000000000..c34a5fd553 --- /dev/null +++ b/dom/media/VideoSegment.cpp @@ -0,0 +1,108 @@ +/* -*- 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 "VideoUtils.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() = default; + +void VideoFrame::SetNull() { + mImage = nullptr; + mIntrinsicSize = gfx::IntSize(0, 0); + mPrincipalHandle = PRINCIPAL_HANDLE_NONE; +} + +void VideoFrame::TakeFrom(VideoFrame* aFrame) { + mImage = std::move(aFrame->mImage); + mIntrinsicSize = aFrame->mIntrinsicSize; + mForceBlack = aFrame->GetForceBlack(); + mPrincipalHandle = aFrame->mPrincipalHandle; +} + +/* static */ +already_AddRefed<Image> VideoFrame::CreateBlackImage( + const gfx::IntSize& aSize) { + RefPtr<ImageContainer> container = + MakeAndAddRef<ImageContainer>(ImageContainer::ASYNCHRONOUS); + RefPtr<PlanarYCbCrImage> image = container->CreatePlanarYCbCrImage(); + if (!image) { + return nullptr; + } + + gfx::IntSize cbcrSize((aSize.width + 1) / 2, (aSize.height + 1) / 2); + int yLen = aSize.width * aSize.height; + int cbcrLen = cbcrSize.width * cbcrSize.height; + + // Generate a black image. + auto frame = MakeUnique<uint8_t[]>(yLen + 2 * cbcrLen); + // Fill Y plane. + memset(frame.get(), 0x10, yLen); + // Fill Cb/Cr planes. + memset(frame.get() + yLen, 0x80, 2 * cbcrLen); + + layers::PlanarYCbCrData data; + data.mYChannel = frame.get(); + data.mYStride = aSize.width; + data.mCbCrStride = cbcrSize.width; + data.mCbChannel = frame.get() + yLen; + data.mCrChannel = data.mCbChannel + cbcrLen; + data.mPictureRect = gfx::IntRect(0, 0, aSize.width, aSize.height); + data.mStereoMode = StereoMode::MONO; + data.mYUVColorSpace = gfx::YUVColorSpace::BT601; + // This could be made FULL once bug 1568745 is complete. A black pixel being + // 0x00, 0x80, 0x80 + data.mColorRange = gfx::ColorRange::LIMITED; + data.mChromaSubsampling = gfx::ChromaSubsampling::HALF_WIDTH_AND_HEIGHT; + + // Copies data, so we can free data. + if (!image->CopyData(data)) { + return nullptr; + } + + return image.forget(); +} + +void VideoSegment::AppendFrame(already_AddRefed<Image>&& aImage, + const IntSize& aIntrinsicSize, + const PrincipalHandle& aPrincipalHandle, + bool aForceBlack, TimeStamp aTimeStamp) { + VideoChunk* chunk = AppendChunk(0); + chunk->mTimeStamp = aTimeStamp; + VideoFrame frame(std::move(aImage), aIntrinsicSize); + MOZ_ASSERT_IF(!IsNull(), !aTimeStamp.IsNull()); + frame.SetForceBlack(aForceBlack); + frame.SetPrincipalHandle(aPrincipalHandle); + chunk->mFrame.TakeFrom(&frame); +} + +VideoSegment::VideoSegment() + : MediaSegmentBase<VideoSegment, VideoChunk>(VIDEO) {} + +VideoSegment::VideoSegment(VideoSegment&& aSegment) + : MediaSegmentBase<VideoSegment, VideoChunk>(std::move(aSegment)) {} + +VideoSegment::~VideoSegment() = default; + +} // namespace mozilla |