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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 <stdint.h>
#include "AudioBufferUtils.h"
#include "gtest/gtest.h"
#include <vector>
const uint32_t FRAMES = 256;
void test_for_number_of_channels(const uint32_t channels) {
const uint32_t samples = channels * FRAMES;
mozilla::AudioCallbackBufferWrapper<float> mBuffer(channels);
mozilla::SpillBuffer<float, 128> b(channels);
std::vector<float> fromCallback(samples, 0.0);
std::vector<float> other(samples, 1.0);
mozilla::AudioChunk chunk;
chunk.mBufferFormat = mozilla::AUDIO_FORMAT_FLOAT32;
chunk.mChannelData.SetLength(channels);
for (uint32_t i = 0; i < channels; ++i) {
chunk.mChannelData[i] = other.data() + i * channels;
}
// Set the buffer in the wrapper from the callback
mBuffer.SetBuffer(fromCallback.data(), FRAMES);
// Fill the SpillBuffer with data.
chunk.mDuration = 15;
ASSERT_TRUE(b.Fill(chunk) == 15);
chunk.mDuration = 17;
ASSERT_TRUE(b.Fill(chunk) == 17);
for (uint32_t i = 0; i < 32 * channels; i++) {
other[i] = 0.0;
}
// Empty it in the AudioCallbackBufferWrapper
ASSERT_TRUE(b.Empty(mBuffer) == 32);
// Check available return something reasonnable
ASSERT_TRUE(mBuffer.Available() == FRAMES - 32);
// Fill the buffer with the rest of the data
mBuffer.WriteFrames(other.data() + 32 * channels, FRAMES - 32);
// Check the buffer is now full
ASSERT_TRUE(mBuffer.Available() == 0);
for (uint32_t i = 0; i < samples; i++) {
ASSERT_TRUE(fromCallback[i] == 1.0)
<< "Difference at " << i << " (" << fromCallback[i] << " != " << 1.0
<< ")\n";
}
chunk.mDuration = FRAMES;
ASSERT_TRUE(b.Fill(chunk) == 128);
ASSERT_TRUE(b.Fill(chunk) == 0);
ASSERT_TRUE(b.Empty(mBuffer) == 0);
}
TEST(AudioBuffers, Test)
{
for (uint32_t ch = 1; ch <= 8; ++ch) {
test_for_number_of_channels(ch);
}
}
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