Implemented AudioOutputProxy.

AudioOutputProxy implements AudioOutputStream interface, but opens
audio device only when audio is playing.

BUG=39825
TEST=Unittests.

Review URL: http://codereview.chromium.org/5158003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@67327 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 72 insertions, 0 deletions

diff --git a/media/audio/audio_parameters_unittest.cc b/media/audio/audio_parameters_unittest.cc
new file mode 100644
index 0000000..61b8ad0
--- /dev/null
+++ b/media/audio/audio_parameters_unittest.cc
@@ -0,0 +1,72 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/basictypes.h"
+#include "base/string_number_conversions.h"
+#include "media/audio/audio_parameters.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(AudioParameters, GetPacketSize) {
+  EXPECT_EQ(100, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
+                                 1, 1000,  8, 100).GetPacketSize());
+  EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
+                                 1, 1000,  16, 100).GetPacketSize());
+  EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
+                                 2, 1000,  8, 100).GetPacketSize());
+  EXPECT_EQ(200, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
+                                 1, 1000,  8, 200).GetPacketSize());
+  EXPECT_EQ(800, AudioParameters(AudioParameters::AUDIO_PCM_LINEAR,
+                                 2, 1000,  16, 200).GetPacketSize());
+}
+
+TEST(AudioParameters, Compare) {
+  AudioParameters values[] = {
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 1000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 1000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 1000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 1000, 16, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 2000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 2000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 2000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 1, 2000, 16, 200),
+
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 1000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 1000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 1000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 1000, 16, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 2000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 2000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 2000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LINEAR, 2, 2000, 16, 200),
+
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 1000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 1000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 1000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 1000, 16, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 2000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 2000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 2000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 1, 2000, 16, 200),
+
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 1000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 1000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 1000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 1000, 16, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 2000,  8, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 2000,  8, 200),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 2000, 16, 100),
+    AudioParameters(AudioParameters::AUDIO_PCM_LOW_LATENCY, 2, 2000, 16, 200),
+  };
+
+  AudioParameters::Compare target;
+  for (size_t i = 0; i < arraysize(values); ++i) {
+    for (size_t j = 0; j < arraysize(values); ++j) {
+      SCOPED_TRACE("i=" + base::IntToString(i) + " j=" + base::IntToString(j));
+      EXPECT_EQ(i < j, target(values[i], values[j]));
+    }
+
+    // Verify that a value is never less than itself.
+    EXPECT_FALSE(target(values[i], values[i]));
+  }
+}