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// 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 {
class Instance;
// 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
// sample frame count.
//
// See PPB_AudioConfigDev.CreateStereo16Bit for more.
AudioConfig_Dev(Instance* instance,
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_
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