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