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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 "WidevineVideoFrame.h"
#include "GMPLog.h"
#include "WidevineUtils.h"
#include "mozilla/CheckedInt.h"
#include "mozilla/IntegerPrintfMacros.h"
namespace mozilla {
WidevineVideoFrame::WidevineVideoFrame()
: mFormat(cdm::VideoFormat::kUnknownVideoFormat),
mSize{0, 0},
mBuffer(nullptr),
mTimestamp(0) {
MOZ_ASSERT(mSize.height == 0 && mSize.width == 0, "Size should be zeroed");
GMP_LOG_DEBUG("WidevineVideoFrame::WidevineVideoFrame() this=%p", this);
memset(mPlaneOffsets, 0, sizeof(mPlaneOffsets));
memset(mPlaneStrides, 0, sizeof(mPlaneStrides));
}
WidevineVideoFrame::WidevineVideoFrame(WidevineVideoFrame&& aOther)
: mFormat(aOther.mFormat),
mSize(aOther.mSize),
mBuffer(aOther.mBuffer),
mTimestamp(aOther.mTimestamp) {
GMP_LOG_DEBUG(
"WidevineVideoFrame::WidevineVideoFrame(WidevineVideoFrame&&) "
"this=%p, other=%p",
this, &aOther);
memcpy(mPlaneOffsets, aOther.mPlaneOffsets, sizeof(mPlaneOffsets));
memcpy(mPlaneStrides, aOther.mPlaneStrides, sizeof(mPlaneStrides));
aOther.mBuffer = nullptr;
}
WidevineVideoFrame::~WidevineVideoFrame() {
if (mBuffer) {
mBuffer->Destroy();
mBuffer = nullptr;
}
}
void WidevineVideoFrame::SetFormat(cdm::VideoFormat aFormat) {
GMP_LOG_DEBUG("WidevineVideoFrame::SetFormat(%d) this=%p", aFormat, this);
mFormat = aFormat;
}
cdm::VideoFormat WidevineVideoFrame::Format() const { return mFormat; }
void WidevineVideoFrame::SetSize(cdm::Size aSize) {
GMP_LOG_DEBUG("WidevineVideoFrame::SetSize(%d,%d) this=%p", aSize.width,
aSize.height, this);
mSize.width = aSize.width;
mSize.height = aSize.height;
}
cdm::Size WidevineVideoFrame::Size() const { return mSize; }
void WidevineVideoFrame::SetFrameBuffer(cdm::Buffer* aFrameBuffer) {
GMP_LOG_DEBUG("WidevineVideoFrame::SetFrameBuffer(%p) this=%p", aFrameBuffer,
this);
MOZ_ASSERT(!mBuffer);
mBuffer = aFrameBuffer;
}
cdm::Buffer* WidevineVideoFrame::FrameBuffer() { return mBuffer; }
void WidevineVideoFrame::SetPlaneOffset(cdm::VideoPlane aPlane,
uint32_t aOffset) {
GMP_LOG_DEBUG("WidevineVideoFrame::SetPlaneOffset(%d, %" PRIu32 ") this=%p",
aPlane, aOffset, this);
mPlaneOffsets[aPlane] = aOffset;
}
uint32_t WidevineVideoFrame::PlaneOffset(cdm::VideoPlane aPlane) {
return mPlaneOffsets[aPlane];
}
void WidevineVideoFrame::SetStride(cdm::VideoPlane aPlane, uint32_t aStride) {
GMP_LOG_DEBUG("WidevineVideoFrame::SetStride(%d, %" PRIu32 ") this=%p",
aPlane, aStride, this);
mPlaneStrides[aPlane] = aStride;
}
uint32_t WidevineVideoFrame::Stride(cdm::VideoPlane aPlane) {
return mPlaneStrides[aPlane];
}
void WidevineVideoFrame::SetTimestamp(int64_t timestamp) {
GMP_LOG_DEBUG("WidevineVideoFrame::SetTimestamp(%" PRId64 ") this=%p",
timestamp, this);
mTimestamp = timestamp;
}
int64_t WidevineVideoFrame::Timestamp() const { return mTimestamp; }
bool WidevineVideoFrame::InitToBlack(int32_t aWidth, int32_t aHeight,
int64_t aTimeStamp) {
if (NS_WARN_IF(aWidth < 0 || aHeight < 0)) {
MOZ_ASSERT_UNREACHABLE("Frame dimensions should be positive");
return false;
}
const uint32_t halfWidth = (uint32_t(aWidth) + 1) / 2;
CheckedInt<size_t> ySizeChk = aWidth;
ySizeChk *= aHeight;
CheckedInt<size_t> uSizeChk = halfWidth;
uSizeChk *= (uint32_t(aHeight) + 1) / 2;
CheckedInt<size_t> yuSizeChk = ySizeChk + uSizeChk;
if (NS_WARN_IF(!yuSizeChk.isValid())) {
return false;
}
WidevineBuffer* buffer = new WidevineBuffer(yuSizeChk.value());
const size_t ySize = ySizeChk.value();
const size_t uSize = uSizeChk.value();
// Black in YCbCr is (0,128,128).
memset(buffer->Data(), 0, ySize);
memset(buffer->Data() + ySize, 128, uSize);
if (mBuffer) {
mBuffer->Destroy();
mBuffer = nullptr;
}
SetFormat(cdm::VideoFormat::kI420);
SetSize(cdm::Size{aWidth, aHeight});
SetFrameBuffer(buffer);
SetPlaneOffset(cdm::VideoPlane::kYPlane, 0);
SetStride(cdm::VideoPlane::kYPlane, aWidth);
// Note: U and V planes are stored at the same place in order to
// save memory since their contents are the same.
SetPlaneOffset(cdm::VideoPlane::kUPlane, ySize);
SetStride(cdm::VideoPlane::kUPlane, halfWidth);
SetPlaneOffset(cdm::VideoPlane::kVPlane, ySize);
SetStride(cdm::VideoPlane::kVPlane, halfWidth);
SetTimestamp(aTimeStamp);
return true;
}
} // namespace mozilla
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