352 lines
9.7 KiB
C++
352 lines
9.7 KiB
C++
/* 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 "gtest/gtest.h"
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#include <algorithm>
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#include "mozilla/ArrayUtils.h"
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#include "VP8TrackEncoder.h"
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#include "ImageContainer.h"
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#include "MediaStreamGraph.h"
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#include "MediaStreamListener.h"
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#include "WebMWriter.h" // TODO: it's weird to include muxer header to get the class definition of VP8 METADATA
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using ::testing::TestWithParam;
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using ::testing::Values;
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using namespace mozilla::layers;
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using namespace mozilla;
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// A helper object to generate of different YUV planes.
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class YUVBufferGenerator {
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public:
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YUVBufferGenerator() {}
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void Init(const mozilla::gfx::IntSize &aSize)
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{
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mImageSize = aSize;
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int yPlaneLen = aSize.width * aSize.height;
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int cbcrPlaneLen = (yPlaneLen + 1) / 2;
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int frameLen = yPlaneLen + cbcrPlaneLen;
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// Generate source buffer.
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mSourceBuffer.SetLength(frameLen);
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// Fill Y plane.
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memset(mSourceBuffer.Elements(), 0x10, yPlaneLen);
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// Fill Cb/Cr planes.
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memset(mSourceBuffer.Elements() + yPlaneLen, 0x80, cbcrPlaneLen);
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}
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mozilla::gfx::IntSize GetSize() const
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{
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return mImageSize;
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}
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void Generate(nsTArray<RefPtr<Image> > &aImages)
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{
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aImages.AppendElement(CreateI420Image());
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aImages.AppendElement(CreateNV12Image());
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aImages.AppendElement(CreateNV21Image());
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}
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private:
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Image *CreateI420Image()
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{
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PlanarYCbCrImage *image = new RecyclingPlanarYCbCrImage(new BufferRecycleBin());
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PlanarYCbCrData data;
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data.mPicSize = mImageSize;
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const uint32_t yPlaneSize = mImageSize.width * mImageSize.height;
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const uint32_t halfWidth = (mImageSize.width + 1) / 2;
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const uint32_t halfHeight = (mImageSize.height + 1) / 2;
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const uint32_t uvPlaneSize = halfWidth * halfHeight;
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// Y plane.
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uint8_t *y = mSourceBuffer.Elements();
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data.mYChannel = y;
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data.mYSize.width = mImageSize.width;
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data.mYSize.height = mImageSize.height;
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data.mYStride = mImageSize.width;
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data.mYSkip = 0;
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// Cr plane.
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uint8_t *cr = y + yPlaneSize + uvPlaneSize;
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data.mCrChannel = cr;
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data.mCrSkip = 0;
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// Cb plane
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uint8_t *cb = y + yPlaneSize;
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data.mCbChannel = cb;
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data.mCbSkip = 0;
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// CrCb plane vectors.
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data.mCbCrStride = halfWidth;
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data.mCbCrSize.width = halfWidth;
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data.mCbCrSize.height = halfHeight;
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image->CopyData(data);
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return image;
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}
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Image *CreateNV12Image()
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{
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PlanarYCbCrImage *image = new RecyclingPlanarYCbCrImage(new BufferRecycleBin());
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PlanarYCbCrData data;
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data.mPicSize = mImageSize;
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const uint32_t yPlaneSize = mImageSize.width * mImageSize.height;
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const uint32_t halfWidth = (mImageSize.width + 1) / 2;
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const uint32_t halfHeight = (mImageSize.height + 1) / 2;
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// Y plane.
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uint8_t *y = mSourceBuffer.Elements();
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data.mYChannel = y;
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data.mYSize.width = mImageSize.width;
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data.mYSize.height = mImageSize.height;
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data.mYStride = mImageSize.width;
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data.mYSkip = 0;
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// Cr plane.
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uint8_t *cr = y + yPlaneSize;
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data.mCrChannel = cr;
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data.mCrSkip = 1;
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// Cb plane
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uint8_t *cb = y + yPlaneSize + 1;
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data.mCbChannel = cb;
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data.mCbSkip = 1;
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// 4:2:0.
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data.mCbCrStride = mImageSize.width;
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data.mCbCrSize.width = halfWidth;
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data.mCbCrSize.height = halfHeight;
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image->CopyData(data);
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return image;
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}
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Image *CreateNV21Image()
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{
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PlanarYCbCrImage *image = new RecyclingPlanarYCbCrImage(new BufferRecycleBin());
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PlanarYCbCrData data;
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data.mPicSize = mImageSize;
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const uint32_t yPlaneSize = mImageSize.width * mImageSize.height;
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const uint32_t halfWidth = (mImageSize.width + 1) / 2;
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const uint32_t halfHeight = (mImageSize.height + 1) / 2;
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// Y plane.
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uint8_t *y = mSourceBuffer.Elements();
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data.mYChannel = y;
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data.mYSize.width = mImageSize.width;
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data.mYSize.height = mImageSize.height;
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data.mYStride = mImageSize.width;
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data.mYSkip = 0;
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// Cr plane.
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uint8_t *cr = y + yPlaneSize + 1;
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data.mCrChannel = cr;
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data.mCrSkip = 1;
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// Cb plane
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uint8_t *cb = y + yPlaneSize;
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data.mCbChannel = cb;
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data.mCbSkip = 1;
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// 4:2:0.
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data.mCbCrStride = mImageSize.width;
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data.mCbCrSize.width = halfWidth;
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data.mCbCrSize.height = halfHeight;
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image->CopyData(data);
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return image;
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}
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private:
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mozilla::gfx::IntSize mImageSize;
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nsTArray<uint8_t> mSourceBuffer;
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};
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struct InitParam {
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bool mShouldSucceed; // This parameter should cause success or fail result
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int mWidth; // frame width
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int mHeight; // frame height
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};
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class TestVP8TrackEncoder: public VP8TrackEncoder
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{
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public:
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explicit TestVP8TrackEncoder(TrackRate aTrackRate = 90000)
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: VP8TrackEncoder(aTrackRate) {}
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::testing::AssertionResult TestInit(const InitParam &aParam)
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{
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nsresult result = Init(aParam.mWidth, aParam.mHeight, aParam.mWidth, aParam.mHeight);
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if (((NS_FAILED(result) && aParam.mShouldSucceed)) || (NS_SUCCEEDED(result) && !aParam.mShouldSucceed))
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{
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return ::testing::AssertionFailure()
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<< " width = " << aParam.mWidth
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<< " height = " << aParam.mHeight;
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}
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else
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{
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return ::testing::AssertionSuccess();
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}
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}
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};
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// Init test
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TEST(VP8VideoTrackEncoder, Initialization)
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{
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InitParam params[] = {
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// Failure cases.
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{ false, 0, 0}, // Height/ width should be larger than 1.
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{ false, 0, 1}, // Height/ width should be larger than 1.
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{ false, 1, 0}, // Height/ width should be larger than 1.
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// Success cases
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{ true, 640, 480}, // Standard VGA
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{ true, 800, 480}, // Standard WVGA
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{ true, 960, 540}, // Standard qHD
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{ true, 1280, 720} // Standard HD
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};
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for (size_t i = 0; i < ArrayLength(params); i++)
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{
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TestVP8TrackEncoder encoder;
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EXPECT_TRUE(encoder.TestInit(params[i]));
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}
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}
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// Get MetaData test
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TEST(VP8VideoTrackEncoder, FetchMetaData)
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{
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InitParam params[] = {
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// Success cases
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{ true, 640, 480}, // Standard VGA
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{ true, 800, 480}, // Standard WVGA
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{ true, 960, 540}, // Standard qHD
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{ true, 1280, 720} // Standard HD
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};
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for (size_t i = 0; i < ArrayLength(params); i++)
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{
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TestVP8TrackEncoder encoder;
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EXPECT_TRUE(encoder.TestInit(params[i]));
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RefPtr<TrackMetadataBase> meta = encoder.GetMetadata();
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RefPtr<VP8Metadata> vp8Meta(static_cast<VP8Metadata*>(meta.get()));
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// METADATA should be depend on how to initiate encoder.
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EXPECT_TRUE(vp8Meta->mWidth == params[i].mWidth);
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EXPECT_TRUE(vp8Meta->mHeight == params[i].mHeight);
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}
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}
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// Encode test
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TEST(VP8VideoTrackEncoder, FrameEncode)
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{
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// Initiate VP8 encoder
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TestVP8TrackEncoder encoder;
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InitParam param = {true, 640, 480};
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encoder.TestInit(param);
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// Create YUV images as source.
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nsTArray<RefPtr<Image>> images;
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YUVBufferGenerator generator;
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generator.Init(mozilla::gfx::IntSize(640, 480));
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generator.Generate(images);
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// Put generated YUV frame into video segment.
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// Duration of each frame is 1 second.
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VideoSegment segment;
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for (nsTArray<RefPtr<Image>>::size_type i = 0; i < images.Length(); i++)
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{
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RefPtr<Image> image = images[i];
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segment.AppendFrame(image.forget(),
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mozilla::StreamTime(90000),
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generator.GetSize(),
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PRINCIPAL_HANDLE_NONE);
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}
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// track change notification.
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encoder.SetCurrentFrames(segment);
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// Pull Encoded Data back from encoder.
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EncodedFrameContainer container;
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EXPECT_TRUE(NS_SUCCEEDED(encoder.GetEncodedTrack(container)));
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}
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// Test encoding a track that has to skip frames.
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TEST(VP8VideoTrackEncoder, SkippedFrames)
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{
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// Initiate VP8 encoder
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TestVP8TrackEncoder encoder;
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InitParam param = {true, 640, 480};
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encoder.TestInit(param);
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nsTArray<RefPtr<Image>> images;
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YUVBufferGenerator generator;
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generator.Init(mozilla::gfx::IntSize(640, 480));
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TimeStamp now = TimeStamp::Now();
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VideoSegment segment;
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while (images.Length() < 100) {
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generator.Generate(images);
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}
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// Pass 100 frames of the shortest possible duration where we don't get
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// rounding errors between input/output rate.
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for (uint32_t i = 0; i < 100; ++i) {
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segment.AppendFrame(images[i].forget(),
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mozilla::StreamTime(90), // 1ms
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generator.GetSize(),
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PRINCIPAL_HANDLE_NONE,
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false,
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now + TimeDuration::FromMilliseconds(i));
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}
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encoder.SetCurrentFrames(segment);
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// End the track.
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segment.Clear();
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encoder.NotifyQueuedTrackChanges(nullptr, 0, 0, TrackEventCommand::TRACK_EVENT_ENDED, segment);
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EncodedFrameContainer container;
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ASSERT_TRUE(NS_SUCCEEDED(encoder.GetEncodedTrack(container)));
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EXPECT_TRUE(encoder.IsEncodingComplete());
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// Verify total duration being 100 * 1ms = 100ms in terms of 30fps frame
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// durations (3 * 1/30s).
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uint64_t totalDuration = 0;
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for (auto& frame : container.GetEncodedFrames()) {
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totalDuration += frame->GetDuration();
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}
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const uint64_t threeFrames = (PR_USEC_PER_SEC / 30) * 3;
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EXPECT_EQ(threeFrames, totalDuration);
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}
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// EOS test
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TEST(VP8VideoTrackEncoder, EncodeComplete)
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{
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// Initiate VP8 encoder
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TestVP8TrackEncoder encoder;
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InitParam param = {true, 640, 480};
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encoder.TestInit(param);
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// track end notification.
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VideoSegment segment;
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encoder.NotifyQueuedTrackChanges(nullptr, 0, 0, TrackEventCommand::TRACK_EVENT_ENDED, segment);
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// Pull Encoded Data back from encoder. Since we have sent
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// EOS to encoder, encoder.GetEncodedTrack should return
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// NS_OK immidiately.
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EncodedFrameContainer container;
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EXPECT_TRUE(NS_SUCCEEDED(encoder.GetEncodedTrack(container)));
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}
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