зеркало из https://github.com/mozilla/gecko-dev.git
318 строки
8.9 KiB
C++
318 строки
8.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 "GMPVideoi420FrameImpl.h"
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#include "mozilla/gmp/GMPTypes.h"
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#include "mozilla/CheckedInt.h"
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namespace mozilla {
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namespace gmp {
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GMPVideoi420FrameImpl::GMPVideoi420FrameImpl(GMPVideoHostImpl* aHost)
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: mYPlane(aHost),
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mUPlane(aHost),
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mVPlane(aHost),
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mWidth(0),
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mHeight(0),
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mTimestamp(0ll),
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mDuration(0ll) {
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MOZ_ASSERT(aHost);
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}
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GMPVideoi420FrameImpl::GMPVideoi420FrameImpl(
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const GMPVideoi420FrameData& aFrameData, GMPVideoHostImpl* aHost)
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: mYPlane(aFrameData.mYPlane(), aHost),
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mUPlane(aFrameData.mUPlane(), aHost),
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mVPlane(aFrameData.mVPlane(), aHost),
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mWidth(aFrameData.mWidth()),
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mHeight(aFrameData.mHeight()),
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mTimestamp(aFrameData.mTimestamp()),
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mDuration(aFrameData.mDuration()) {
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MOZ_ASSERT(aHost);
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}
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GMPVideoi420FrameImpl::~GMPVideoi420FrameImpl() {}
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bool GMPVideoi420FrameImpl::InitFrameData(GMPVideoi420FrameData& aFrameData) {
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mYPlane.InitPlaneData(aFrameData.mYPlane());
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mUPlane.InitPlaneData(aFrameData.mUPlane());
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mVPlane.InitPlaneData(aFrameData.mVPlane());
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aFrameData.mWidth() = mWidth;
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aFrameData.mHeight() = mHeight;
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aFrameData.mTimestamp() = mTimestamp;
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aFrameData.mDuration() = mDuration;
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return true;
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}
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GMPVideoFrameFormat GMPVideoi420FrameImpl::GetFrameFormat() {
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return kGMPI420VideoFrame;
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}
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void GMPVideoi420FrameImpl::Destroy() { delete this; }
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/* static */
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bool GMPVideoi420FrameImpl::CheckFrameData(
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const GMPVideoi420FrameData& aFrameData) {
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// We may be passed the "wrong" shmem (one smaller than the actual size).
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// This implies a bug or serious error on the child size. Ignore this frame
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// if so. Note: Size() greater than expected is also an error, but with no
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// negative consequences
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int32_t half_width = (aFrameData.mWidth() + 1) / 2;
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if ((aFrameData.mYPlane().mStride() <= 0) ||
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(aFrameData.mYPlane().mSize() <= 0) ||
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(aFrameData.mUPlane().mStride() <= 0) ||
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(aFrameData.mUPlane().mSize() <= 0) ||
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(aFrameData.mVPlane().mStride() <= 0) ||
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(aFrameData.mVPlane().mSize() <= 0) ||
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(aFrameData.mYPlane().mSize() >
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(int32_t)aFrameData.mYPlane().mBuffer().Size<uint8_t>()) ||
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(aFrameData.mUPlane().mSize() >
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(int32_t)aFrameData.mUPlane().mBuffer().Size<uint8_t>()) ||
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(aFrameData.mVPlane().mSize() >
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(int32_t)aFrameData.mVPlane().mBuffer().Size<uint8_t>()) ||
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(aFrameData.mYPlane().mStride() < aFrameData.mWidth()) ||
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(aFrameData.mUPlane().mStride() < half_width) ||
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(aFrameData.mVPlane().mStride() < half_width) ||
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(aFrameData.mYPlane().mSize() <
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aFrameData.mYPlane().mStride() * aFrameData.mHeight()) ||
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(aFrameData.mUPlane().mSize() <
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aFrameData.mUPlane().mStride() * ((aFrameData.mHeight() + 1) / 2)) ||
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(aFrameData.mVPlane().mSize() <
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aFrameData.mVPlane().mStride() * ((aFrameData.mHeight() + 1) / 2))) {
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return false;
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}
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return true;
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}
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bool GMPVideoi420FrameImpl::CheckDimensions(int32_t aWidth, int32_t aHeight,
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int32_t aStride_y,
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int32_t aStride_u,
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int32_t aStride_v) {
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int32_t half_width = (aWidth + 1) / 2;
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if (aWidth < 1 || aHeight < 1 || aStride_y < aWidth ||
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aStride_u < half_width || aStride_v < half_width ||
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!(CheckedInt<int32_t>(aHeight) * aStride_y +
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((CheckedInt<int32_t>(aHeight) + 1) / 2) *
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(CheckedInt<int32_t>(aStride_u) + aStride_v))
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.isValid()) {
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return false;
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}
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return true;
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}
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const GMPPlaneImpl* GMPVideoi420FrameImpl::GetPlane(GMPPlaneType aType) const {
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switch (aType) {
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case kGMPYPlane:
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return &mYPlane;
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case kGMPUPlane:
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return &mUPlane;
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case kGMPVPlane:
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return &mVPlane;
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default:
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MOZ_CRASH("Unknown plane type!");
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}
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return nullptr;
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}
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GMPPlaneImpl* GMPVideoi420FrameImpl::GetPlane(GMPPlaneType aType) {
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switch (aType) {
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case kGMPYPlane:
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return &mYPlane;
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case kGMPUPlane:
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return &mUPlane;
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case kGMPVPlane:
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return &mVPlane;
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default:
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MOZ_CRASH("Unknown plane type!");
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}
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return nullptr;
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}
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GMPErr GMPVideoi420FrameImpl::CreateEmptyFrame(int32_t aWidth, int32_t aHeight,
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int32_t aStride_y,
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int32_t aStride_u,
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int32_t aStride_v) {
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if (!CheckDimensions(aWidth, aHeight, aStride_y, aStride_u, aStride_v)) {
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return GMPGenericErr;
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}
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int32_t size_y = aStride_y * aHeight;
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int32_t half_height = (aHeight + 1) / 2;
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int32_t size_u = aStride_u * half_height;
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int32_t size_v = aStride_v * half_height;
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GMPErr err = mYPlane.CreateEmptyPlane(size_y, aStride_y, size_y);
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if (err != GMPNoErr) {
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return err;
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}
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err = mUPlane.CreateEmptyPlane(size_u, aStride_u, size_u);
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if (err != GMPNoErr) {
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return err;
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}
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err = mVPlane.CreateEmptyPlane(size_v, aStride_v, size_v);
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if (err != GMPNoErr) {
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return err;
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}
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mWidth = aWidth;
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mHeight = aHeight;
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mTimestamp = 0ll;
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mDuration = 0ll;
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return GMPNoErr;
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}
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GMPErr GMPVideoi420FrameImpl::CreateFrame(
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int32_t aSize_y, const uint8_t* aBuffer_y, int32_t aSize_u,
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const uint8_t* aBuffer_u, int32_t aSize_v, const uint8_t* aBuffer_v,
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int32_t aWidth, int32_t aHeight, int32_t aStride_y, int32_t aStride_u,
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int32_t aStride_v) {
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MOZ_ASSERT(aBuffer_y);
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MOZ_ASSERT(aBuffer_u);
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MOZ_ASSERT(aBuffer_v);
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if (aSize_y < 1 || aSize_u < 1 || aSize_v < 1) {
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return GMPGenericErr;
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}
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if (!CheckDimensions(aWidth, aHeight, aStride_y, aStride_u, aStride_v)) {
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return GMPGenericErr;
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}
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GMPErr err = mYPlane.Copy(aSize_y, aStride_y, aBuffer_y);
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if (err != GMPNoErr) {
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return err;
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}
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err = mUPlane.Copy(aSize_u, aStride_u, aBuffer_u);
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if (err != GMPNoErr) {
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return err;
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}
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err = mVPlane.Copy(aSize_v, aStride_v, aBuffer_v);
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if (err != GMPNoErr) {
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return err;
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}
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mWidth = aWidth;
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mHeight = aHeight;
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return GMPNoErr;
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}
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GMPErr GMPVideoi420FrameImpl::CopyFrame(const GMPVideoi420Frame& aFrame) {
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auto& f = static_cast<const GMPVideoi420FrameImpl&>(aFrame);
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GMPErr err = mYPlane.Copy(f.mYPlane);
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if (err != GMPNoErr) {
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return err;
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}
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err = mUPlane.Copy(f.mUPlane);
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if (err != GMPNoErr) {
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return err;
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}
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err = mVPlane.Copy(f.mVPlane);
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if (err != GMPNoErr) {
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return err;
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}
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mWidth = f.mWidth;
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mHeight = f.mHeight;
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mTimestamp = f.mTimestamp;
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mDuration = f.mDuration;
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return GMPNoErr;
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}
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void GMPVideoi420FrameImpl::SwapFrame(GMPVideoi420Frame* aFrame) {
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auto f = static_cast<GMPVideoi420FrameImpl*>(aFrame);
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mYPlane.Swap(f->mYPlane);
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mUPlane.Swap(f->mUPlane);
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mVPlane.Swap(f->mVPlane);
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std::swap(mWidth, f->mWidth);
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std::swap(mHeight, f->mHeight);
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std::swap(mTimestamp, f->mTimestamp);
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std::swap(mDuration, f->mDuration);
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}
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uint8_t* GMPVideoi420FrameImpl::Buffer(GMPPlaneType aType) {
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GMPPlane* p = GetPlane(aType);
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if (p) {
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return p->Buffer();
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}
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return nullptr;
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}
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const uint8_t* GMPVideoi420FrameImpl::Buffer(GMPPlaneType aType) const {
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const GMPPlane* p = GetPlane(aType);
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if (p) {
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return p->Buffer();
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}
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return nullptr;
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}
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int32_t GMPVideoi420FrameImpl::AllocatedSize(GMPPlaneType aType) const {
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const GMPPlane* p = GetPlane(aType);
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if (p) {
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return p->AllocatedSize();
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}
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return -1;
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}
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int32_t GMPVideoi420FrameImpl::Stride(GMPPlaneType aType) const {
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const GMPPlane* p = GetPlane(aType);
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if (p) {
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return p->Stride();
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}
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return -1;
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}
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GMPErr GMPVideoi420FrameImpl::SetWidth(int32_t aWidth) {
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if (!CheckDimensions(aWidth, mHeight, mYPlane.Stride(), mUPlane.Stride(),
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mVPlane.Stride())) {
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return GMPGenericErr;
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}
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mWidth = aWidth;
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return GMPNoErr;
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}
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GMPErr GMPVideoi420FrameImpl::SetHeight(int32_t aHeight) {
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if (!CheckDimensions(mWidth, aHeight, mYPlane.Stride(), mUPlane.Stride(),
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mVPlane.Stride())) {
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return GMPGenericErr;
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}
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mHeight = aHeight;
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return GMPNoErr;
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}
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int32_t GMPVideoi420FrameImpl::Width() const { return mWidth; }
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int32_t GMPVideoi420FrameImpl::Height() const { return mHeight; }
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void GMPVideoi420FrameImpl::SetTimestamp(uint64_t aTimestamp) {
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mTimestamp = aTimestamp;
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}
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uint64_t GMPVideoi420FrameImpl::Timestamp() const { return mTimestamp; }
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void GMPVideoi420FrameImpl::SetDuration(uint64_t aDuration) {
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mDuration = aDuration;
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}
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uint64_t GMPVideoi420FrameImpl::Duration() const { return mDuration; }
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bool GMPVideoi420FrameImpl::IsZeroSize() const {
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return (mYPlane.IsZeroSize() && mUPlane.IsZeroSize() && mVPlane.IsZeroSize());
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}
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void GMPVideoi420FrameImpl::ResetSize() {
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mYPlane.ResetSize();
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mUPlane.ResetSize();
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mVPlane.ResetSize();
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}
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} // namespace gmp
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} // namespace mozilla
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