Add an initial revision of an audio server.

services/media/audio/platform/generic/mixers/point_sampler.h

+// Copyright 2015 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.
+
+#ifndef SERVICES_MEDIA_AUDIO_PLATFORM_GENERIC_MIXERS_POINT_SAMPLER_H_
+#define SERVICES_MEDIA_AUDIO_PLATFORM_GENERIC_MIXERS_POINT_SAMPLER_H_
+
+#include "mojo/services/media/common/interfaces/media_types.mojom.h"
+#include "services/media/audio/platform/generic/mixer.h"
+
+namespace mojo {
+namespace media {
+namespace audio {
+namespace mixers {
+
+class PointSampler : public Mixer {
+ public:
+  static MixerPtr Select(const LpcmMediaTypeDetailsPtr& src_format,
+                         const LpcmMediaTypeDetailsPtr& dst_format);
+};
+
+}  // namespace mixers
+}  // namespace audio
+}  // namespace media
+}  // namespace mojo
+
+#endif  // SERVICES_MEDIA_AUDIO_PLATFORM_GENERIC_MIXERS_POINT_SAMPLER_H_