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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "gtest/gtest.h"
#include "AudioCompactor.h"
#include "MediaDecoderReader.h"
using mozilla::AudioCompactor;
using mozilla::AudioData;
using mozilla::AudioDataValue;
using mozilla::MediaDecoderReader;
using mozilla::MediaQueue;
class MemoryFunctor : public nsDequeFunctor {
public:
MemoryFunctor() : mSize(0) {}
MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf);
void* operator()(void* aObject) override {
const AudioData* audioData = static_cast<const AudioData*>(aObject);
mSize += audioData->SizeOfIncludingThis(MallocSizeOf);
return nullptr;
}
size_t mSize;
};
class TestCopy
{
public:
TestCopy(uint32_t aFrames, uint32_t aChannels,
uint32_t &aCallCount, uint32_t &aFrameCount)
: mFrames(aFrames)
, mChannels(aChannels)
, mCallCount(aCallCount)
, mFrameCount(aFrameCount)
{ }
uint32_t operator()(AudioDataValue *aBuffer, uint32_t aSamples)
{
mCallCount += 1;
uint32_t frames = std::min(mFrames - mFrameCount, aSamples / mChannels);
mFrameCount += frames;
return frames;
}
private:
const uint32_t mFrames;
const uint32_t mChannels;
uint32_t &mCallCount;
uint32_t &mFrameCount;
};
static void TestAudioCompactor(size_t aBytes)
{
MediaQueue<AudioData> queue;
AudioCompactor compactor(queue);
uint64_t offset = 0;
uint64_t time = 0;
uint32_t sampleRate = 44000;
uint32_t channels = 2;
uint32_t frames = aBytes / (channels * sizeof(AudioDataValue));
size_t maxSlop = aBytes / AudioCompactor::MAX_SLOP_DIVISOR;
uint32_t callCount = 0;
uint32_t frameCount = 0;
compactor.Push(offset, time, sampleRate, frames, channels,
TestCopy(frames, channels, callCount, frameCount));
EXPECT_GT(callCount, 0U) << "copy functor never called";
EXPECT_EQ(frames, frameCount) << "incorrect number of frames copied";
MemoryFunctor memoryFunc;
queue.LockedForEach(memoryFunc);
size_t allocSize = memoryFunc.mSize - (callCount * sizeof(AudioData));
size_t slop = allocSize - aBytes;
EXPECT_LE(slop, maxSlop) << "allowed too much allocation slop";
}
TEST(Media, AudioCompactor_4000)
{
TestAudioCompactor(4000);
}
TEST(Media, AudioCompactor_4096)
{
TestAudioCompactor(4096);
}
TEST(Media, AudioCompactor_5000)
{
TestAudioCompactor(5000);
}
TEST(Media, AudioCompactor_5256)
{
TestAudioCompactor(5256);
}
TEST(Media, AudioCompactor_NativeCopy)
{
const uint32_t channels = 2;
const size_t srcBytes = 32;
const uint32_t srcSamples = srcBytes / sizeof(AudioDataValue);
const uint32_t srcFrames = srcSamples / channels;
uint8_t src[srcBytes];
for (uint32_t i = 0; i < srcBytes; ++i) {
src[i] = i;
}
AudioCompactor::NativeCopy copy(src, srcBytes, channels);
const uint32_t dstSamples = srcSamples * 2;
AudioDataValue dst[dstSamples];
const AudioDataValue notCopied = 0xffff;
for (uint32_t i = 0; i < dstSamples; ++i) {
dst[i] = notCopied;
}
const uint32_t copyCount = 8;
uint32_t copiedFrames = 0;
uint32_t nextSample = 0;
for (uint32_t i = 0; i < copyCount; ++i) {
uint32_t copySamples = dstSamples / copyCount;
copiedFrames += copy(dst + nextSample, copySamples);
nextSample += copySamples;
}
EXPECT_EQ(srcFrames, copiedFrames) << "copy exact number of source frames";
// Verify that the only the correct bytes were copied.
for (uint32_t i = 0; i < dstSamples; ++i) {
if (i < srcSamples) {
EXPECT_NE(notCopied, dst[i]) << "should have copied over these bytes";
} else {
EXPECT_EQ(notCopied, dst[i]) << "should not have copied over these bytes";
}
}
}
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