gecko-dev/dom/media/gtest/TestAudioBuffers.cpp
Alex Chronopoulos c9d4805a3f Bug 1378070 - Implement multichannel WebAudio. r=padenot
* * *
[mq]: rebase

MozReview-Commit-ID: KJwH3ZeJn55

--HG--
extra : rebase_source : 0e9866c8dc5ccb98a9654c1e18b0bcef1ef5afa8
2017-08-28 17:16:20 +03:00

61 lines
1.8 KiB
C++

/* -*- 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);
// Set the buffer in the wrapper from the callback
mBuffer.SetBuffer(fromCallback.data(), FRAMES);
// Fill the SpillBuffer with data.
ASSERT_TRUE(b.Fill(other.data(), 15) == 15);
ASSERT_TRUE(b.Fill(other.data(), 17) == 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";
}
ASSERT_TRUE(b.Fill(other.data(), FRAMES) == 128);
ASSERT_TRUE(b.Fill(other.data(), FRAMES) == 0);
ASSERT_TRUE(b.Empty(mBuffer) == 0);
}
TEST(AudioBuffers, Test)
{
for (uint32_t ch = 1; ch <= 8; ++ch) {
test_for_number_of_channels(ch);
}
}