422 lines
13 KiB
C++
422 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaData.h"
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#include "MediaInfo.h"
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#include "VideoUtils.h"
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#include "ImageContainer.h"
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#include <stdint.h>
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namespace mozilla {
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using namespace mozilla::gfx;
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using layers::ImageContainer;
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using layers::PlanarYCbCrImage;
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using layers::PlanarYCbCrData;
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const char* AudioData::sTypeName = "audio";
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const char* VideoData::sTypeName = "video";
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void
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AudioData::EnsureAudioBuffer()
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{
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if (mAudioBuffer)
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return;
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mAudioBuffer = SharedBuffer::Create(mFrames*mChannels*sizeof(AudioDataValue));
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AudioDataValue* data = static_cast<AudioDataValue*>(mAudioBuffer->Data());
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for (uint32_t i = 0; i < mFrames; ++i) {
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for (uint32_t j = 0; j < mChannels; ++j) {
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data[j*mFrames + i] = mAudioData[i*mChannels + j];
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}
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}
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}
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size_t
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AudioData::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
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{
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size_t size =
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aMallocSizeOf(this) + mAudioData.SizeOfExcludingThis(aMallocSizeOf);
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if (mAudioBuffer) {
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size += mAudioBuffer->SizeOfIncludingThis(aMallocSizeOf);
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}
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return size;
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}
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bool
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AudioData::IsAudible() const
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{
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if (!mAudioData) {
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return false;
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}
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for (uint32_t frame = 0; frame < mFrames; ++frame) {
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for (uint32_t channel = 0; channel < mChannels; ++channel) {
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if (mAudioData[frame * mChannels + channel] != 0) {
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return true;
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}
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}
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}
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return false;
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}
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/* static */
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already_AddRefed<AudioData>
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AudioData::TransferAndUpdateTimestampAndDuration(AudioData* aOther,
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int64_t aTimestamp,
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int64_t aDuration)
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{
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NS_ENSURE_TRUE(aOther, nullptr);
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RefPtr<AudioData> v = new AudioData(aOther->mOffset,
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aTimestamp,
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aDuration,
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aOther->mFrames,
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Move(aOther->mAudioData),
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aOther->mChannels,
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aOther->mRate);
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return v.forget();
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}
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static bool
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ValidatePlane(const VideoData::YCbCrBuffer::Plane& aPlane)
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{
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return aPlane.mWidth <= PlanarYCbCrImage::MAX_DIMENSION &&
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aPlane.mHeight <= PlanarYCbCrImage::MAX_DIMENSION &&
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aPlane.mWidth * aPlane.mHeight < MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT &&
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aPlane.mStride > 0 && aPlane.mWidth <= aPlane.mStride;
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}
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VideoData::VideoData(int64_t aOffset,
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int64_t aTime,
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int64_t aDuration,
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bool aKeyframe,
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int64_t aTimecode,
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IntSize aDisplay,
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layers::ImageContainer::FrameID aFrameID)
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: MediaData(VIDEO_DATA, aOffset, aTime, aDuration, 1)
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, mDisplay(aDisplay)
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, mFrameID(aFrameID)
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, mSentToCompositor(false)
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{
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NS_ASSERTION(mDuration >= 0, "Frame must have non-negative duration.");
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mKeyframe = aKeyframe;
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mTimecode = aTimecode;
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}
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VideoData::~VideoData()
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{
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}
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size_t
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VideoData::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
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{
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size_t size = aMallocSizeOf(this);
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// Currently only PLANAR_YCBCR has a well defined function for determining
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// it's size, so reporting is limited to that type.
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if (mImage && mImage->GetFormat() == ImageFormat::PLANAR_YCBCR) {
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const mozilla::layers::PlanarYCbCrImage* img =
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static_cast<const mozilla::layers::PlanarYCbCrImage*>(mImage.get());
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size += img->SizeOfIncludingThis(aMallocSizeOf);
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}
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return size;
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}
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/* static */
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already_AddRefed<VideoData>
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VideoData::ShallowCopyUpdateDuration(const VideoData* aOther,
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int64_t aDuration)
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{
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RefPtr<VideoData> v = new VideoData(aOther->mOffset,
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aOther->mTime,
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aDuration,
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aOther->mKeyframe,
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aOther->mTimecode,
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aOther->mDisplay,
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aOther->mFrameID);
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v->mImage = aOther->mImage;
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return v.forget();
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}
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/* static */
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already_AddRefed<VideoData>
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VideoData::ShallowCopyUpdateTimestamp(const VideoData* aOther,
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int64_t aTimestamp)
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{
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NS_ENSURE_TRUE(aOther, nullptr);
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RefPtr<VideoData> v = new VideoData(aOther->mOffset,
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aTimestamp,
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aOther->GetEndTime() - aTimestamp,
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aOther->mKeyframe,
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aOther->mTimecode,
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aOther->mDisplay,
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aOther->mFrameID);
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v->mImage = aOther->mImage;
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return v.forget();
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}
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/* static */
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already_AddRefed<VideoData>
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VideoData::ShallowCopyUpdateTimestampAndDuration(const VideoData* aOther,
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int64_t aTimestamp,
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int64_t aDuration)
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{
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NS_ENSURE_TRUE(aOther, nullptr);
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RefPtr<VideoData> v = new VideoData(aOther->mOffset,
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aTimestamp,
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aDuration,
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aOther->mKeyframe,
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aOther->mTimecode,
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aOther->mDisplay,
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aOther->mFrameID);
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v->mImage = aOther->mImage;
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return v.forget();
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}
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/* static */
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bool VideoData::SetVideoDataToImage(PlanarYCbCrImage* aVideoImage,
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const VideoInfo& aInfo,
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const YCbCrBuffer &aBuffer,
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const IntRect& aPicture,
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bool aCopyData)
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{
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if (!aVideoImage) {
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return false;
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}
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const YCbCrBuffer::Plane &Y = aBuffer.mPlanes[0];
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const YCbCrBuffer::Plane &Cb = aBuffer.mPlanes[1];
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const YCbCrBuffer::Plane &Cr = aBuffer.mPlanes[2];
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PlanarYCbCrData data;
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data.mYChannel = Y.mData + Y.mOffset;
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data.mYSize = IntSize(Y.mWidth, Y.mHeight);
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data.mYStride = Y.mStride;
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data.mYSkip = Y.mSkip;
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data.mCbChannel = Cb.mData + Cb.mOffset;
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data.mCrChannel = Cr.mData + Cr.mOffset;
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data.mCbCrSize = IntSize(Cb.mWidth, Cb.mHeight);
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data.mCbCrStride = Cb.mStride;
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data.mCbSkip = Cb.mSkip;
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data.mCrSkip = Cr.mSkip;
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data.mPicX = aPicture.x;
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data.mPicY = aPicture.y;
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data.mPicSize = aPicture.Size();
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data.mStereoMode = aInfo.mStereoMode;
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data.mYUVColorSpace = aBuffer.mYUVColorSpace;
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aVideoImage->SetDelayedConversion(true);
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if (aCopyData) {
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return aVideoImage->CopyData(data);
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} else {
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return aVideoImage->AdoptData(data);
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}
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}
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/* static */
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already_AddRefed<VideoData>
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VideoData::CreateAndCopyData(const VideoInfo& aInfo,
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ImageContainer* aContainer,
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int64_t aOffset,
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int64_t aTime,
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int64_t aDuration,
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const YCbCrBuffer& aBuffer,
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bool aKeyframe,
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int64_t aTimecode,
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const IntRect& aPicture)
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{
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if (!aContainer) {
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// Create a dummy VideoData with no image. This gives us something to
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// send to media streams if necessary.
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RefPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aDuration,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay,
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0));
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return v.forget();
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}
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// The following situation should never happen unless there is a bug
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// in the decoder
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if (aBuffer.mPlanes[1].mWidth != aBuffer.mPlanes[2].mWidth ||
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aBuffer.mPlanes[1].mHeight != aBuffer.mPlanes[2].mHeight) {
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NS_ERROR("C planes with different sizes");
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return nullptr;
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}
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// The following situations could be triggered by invalid input
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if (aPicture.width <= 0 || aPicture.height <= 0) {
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// In debug mode, makes the error more noticeable
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MOZ_ASSERT(false, "Empty picture rect");
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return nullptr;
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}
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if (!ValidatePlane(aBuffer.mPlanes[0]) || !ValidatePlane(aBuffer.mPlanes[1]) ||
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!ValidatePlane(aBuffer.mPlanes[2])) {
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NS_WARNING("Invalid plane size");
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return nullptr;
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}
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// Ensure the picture size specified in the headers can be extracted out of
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// the frame we've been supplied without indexing out of bounds.
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CheckedUint32 xLimit = aPicture.x + CheckedUint32(aPicture.width);
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CheckedUint32 yLimit = aPicture.y + CheckedUint32(aPicture.height);
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if (!xLimit.isValid() || xLimit.value() > aBuffer.mPlanes[0].mStride ||
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!yLimit.isValid() || yLimit.value() > aBuffer.mPlanes[0].mHeight)
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{
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// The specified picture dimensions can't be contained inside the video
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// frame, we'll stomp memory if we try to copy it. Fail.
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NS_WARNING("Overflowing picture rect");
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return nullptr;
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}
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RefPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aDuration,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay,
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0));
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// Currently our decoder only knows how to output to ImageFormat::PLANAR_YCBCR
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// format.
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if (!v->mImage) {
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v->mImage = aContainer->CreatePlanarYCbCrImage();
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}
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if (!v->mImage) {
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return nullptr;
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}
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NS_ASSERTION(v->mImage->GetFormat() == ImageFormat::PLANAR_YCBCR ||
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v->mImage->GetFormat() == ImageFormat::GRALLOC_PLANAR_YCBCR,
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"Wrong format?");
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PlanarYCbCrImage* videoImage = v->mImage->AsPlanarYCbCrImage();
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MOZ_ASSERT(videoImage);
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if (!VideoData::SetVideoDataToImage(videoImage, aInfo, aBuffer, aPicture,
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true /* aCopyData */)) {
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return nullptr;
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}
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return v.forget();
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}
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/* static */
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already_AddRefed<VideoData>
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VideoData::CreateFromImage(const VideoInfo& aInfo,
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int64_t aOffset,
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int64_t aTime,
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int64_t aDuration,
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const RefPtr<Image>& aImage,
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bool aKeyframe,
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int64_t aTimecode,
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const IntRect& aPicture)
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{
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RefPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aDuration,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay,
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0));
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v->mImage = aImage;
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return v.forget();
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}
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MediaRawData::MediaRawData()
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: MediaData(RAW_DATA, 0)
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, mCrypto(mCryptoInternal)
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{
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}
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MediaRawData::MediaRawData(const uint8_t* aData, size_t aSize)
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: MediaData(RAW_DATA, 0)
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, mCrypto(mCryptoInternal)
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, mBuffer(aData, aSize)
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{
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}
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already_AddRefed<MediaRawData>
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MediaRawData::Clone() const
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{
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RefPtr<MediaRawData> s = new MediaRawData;
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s->mTimecode = mTimecode;
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s->mTime = mTime;
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s->mDuration = mDuration;
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s->mOffset = mOffset;
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s->mKeyframe = mKeyframe;
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s->mExtraData = mExtraData;
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s->mCryptoInternal = mCryptoInternal;
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s->mTrackInfo = mTrackInfo;
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s->mEOS = mEOS;
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if (!s->mBuffer.Append(mBuffer.Data(), mBuffer.Length())) {
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return nullptr;
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}
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return s.forget();
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}
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MediaRawData::~MediaRawData()
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{
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}
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size_t
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MediaRawData::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
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{
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size_t size = aMallocSizeOf(this);
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size += mBuffer.SizeOfExcludingThis(aMallocSizeOf);
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return size;
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}
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MediaRawDataWriter*
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MediaRawData::CreateWriter()
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{
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return new MediaRawDataWriter(this);
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}
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MediaRawDataWriter::MediaRawDataWriter(MediaRawData* aMediaRawData)
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: mCrypto(aMediaRawData->mCryptoInternal)
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, mTarget(aMediaRawData)
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{
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}
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bool
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MediaRawDataWriter::SetSize(size_t aSize)
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{
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return mTarget->mBuffer.SetLength(aSize);
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}
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bool
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MediaRawDataWriter::Prepend(const uint8_t* aData, size_t aSize)
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{
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return mTarget->mBuffer.Prepend(aData, aSize);
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}
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bool
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MediaRawDataWriter::Replace(const uint8_t* aData, size_t aSize)
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{
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return mTarget->mBuffer.Replace(aData, aSize);
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}
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void
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MediaRawDataWriter::Clear()
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{
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mTarget->mBuffer.Clear();
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}
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uint8_t*
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MediaRawDataWriter::Data()
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{
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return mTarget->mBuffer.Data();
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}
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size_t
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MediaRawDataWriter::Size()
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{
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return mTarget->Size();
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}
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} // namespace mozilla
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