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-rw-r--r--dom/media/gtest/TestAudioBuffers.cpp68
1 files changed, 68 insertions, 0 deletions
diff --git a/dom/media/gtest/TestAudioBuffers.cpp b/dom/media/gtest/TestAudioBuffers.cpp
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+++ b/dom/media/gtest/TestAudioBuffers.cpp
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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);
+ }
+}