Add m-esr52 at 52.6.0

1 files changed, 57 insertions, 0 deletions

diff --git a/dom/media/gtest/TestAudioBuffers.cpp b/dom/media/gtest/TestAudioBuffers.cpp
new file mode 100644
index 000000000..b03886cec
--- /dev/null
+++ b/dom/media/gtest/TestAudioBuffers.cpp
@@ -0,0 +1,57 @@
+/* -*- 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"
+
+const uint32_t FRAMES = 256;
+const uint32_t CHANNELS = 2;
+const uint32_t SAMPLES = CHANNELS * FRAMES;
+
+TEST(AudioBuffers, Test)
+{
+  mozilla::AudioCallbackBufferWrapper<float, CHANNELS> mBuffer;
+  mozilla::SpillBuffer<float, 128, CHANNELS> b;
+  float fromCallback[SAMPLES];
+  float other[SAMPLES];
+
+  for (uint32_t i = 0; i < SAMPLES; i++) {
+    other[i] = 1.0;
+    fromCallback[i] = 0.0;
+  }
+
+  // Set the buffer in the wrapper from the callback
+  mBuffer.SetBuffer(fromCallback, FRAMES);
+
+  // Fill the SpillBuffer with data.
+  ASSERT_TRUE(b.Fill(other, 15) == 15);
+  ASSERT_TRUE(b.Fill(other, 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 + 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, FRAMES) == 128);
+  ASSERT_TRUE(b.Fill(other, FRAMES) == 0);
+  ASSERT_TRUE(b.Empty(mBuffer) == 0);
+}