1 files changed, 57 insertions, 0 deletions
diff --git a/ppapi/cpp/dev/audio_config_dev.h b/ppapi/cpp/dev/audio_config_dev.h
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--- /dev/null
+++ b/ppapi/cpp/dev/audio_config_dev.h
@@ -0,0 +1,57 @@
+// 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.
+
+#ifndef PPAPI_CPP_DEV_AUDIO_CONFIG_DEV_H_
+#define PPAPI_CPP_DEV_AUDIO_CONFIG_DEV_H_
+
+#include "ppapi/c/dev/ppb_audio_config_dev.h"
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/cpp/resource.h"
+
+namespace pp {
+
+// Typical usage:
+//
+//   // Create an audio config with a supported frame count.
+//   uint32_t sample_frame_count =
+//       AudioConfig_Dev::RecommendSampleFrameCount(4096);
+//   AudioConfig_Dev config(PP_AUDIOSAMPLERATE_44100, sample_frame_count);
+//   if (config.is_null())
+//     return false;  // Couldn't configure audio.
+//
+//   // Then use the config to create your audio resource.
+//   Audio_dev audio(..., config, ...);
+//   if (audio.is_null())
+//     return false;  // Couldn't create audio.
+class AudioConfig_Dev : public Resource {
+ public:
+  AudioConfig_Dev();
+
+  // Creates an audio config based on the given sample rate and frame count.
+  // If the rate and frame count aren't supported, the resulting resource
+  // will be is_null(). Pass the result of RecommendSampleFrameCount as the
+  // semple frame count.
+  //
+  // See PPB_AudioConfigDev.CreateStereo16Bit for more.
+  AudioConfig_Dev(PP_AudioSampleRate_Dev sample_rate,
+                  uint32_t sample_frame_count);
+
+  // Returns a supported frame count for use in the constructor.
+  //
+  // See PPB_AudioConfigDev.RecommendSampleFrameCount.
+  static uint32_t RecommendSampleFrameCount(
+      uint32_t requested_sample_frame_count);
+
+  PP_AudioSampleRate_Dev sample_rate() const { return sample_rate_; }
+  uint32_t sample_frame_count() { return sample_frame_count_; }
+
+ private:
+  PP_AudioSampleRate_Dev sample_rate_;
+  uint32_t sample_frame_count_;
+};
+
+}  // namespace pp
+
+#endif  // PPAPI_CPP_DEV_AUDIO_CONFIG_DEV_H_
+