blob: 843f2d11efe3c1e994012357feb1c346fc220aaa [file] [log] [blame]
// Copyright (c) 2011 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 "ppapi/shared_impl/audio_config_impl.h"
namespace ppapi {
AudioConfigImpl::AudioConfigImpl(PP_Instance instance)
: Resource(instance),
sample_rate_(PP_AUDIOSAMPLERATE_NONE),
sample_frame_count_(0) {
}
AudioConfigImpl::AudioConfigImpl(const HostResource& host_resource)
: Resource(host_resource),
sample_rate_(PP_AUDIOSAMPLERATE_NONE),
sample_frame_count_(0) {
}
AudioConfigImpl::~AudioConfigImpl() {
}
// static
PP_Resource AudioConfigImpl::CreateAsImpl(PP_Instance instance,
PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count) {
scoped_refptr<AudioConfigImpl> object(new AudioConfigImpl(instance));
if (!object->Init(sample_rate, sample_frame_count))
return 0;
return object->GetReference();
}
// static
PP_Resource AudioConfigImpl::CreateAsProxy(PP_Instance instance,
PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count) {
scoped_refptr<AudioConfigImpl> object(new AudioConfigImpl(
HostResource::MakeInstanceOnly(instance)));
if (!object->Init(sample_rate, sample_frame_count))
return 0;
return object->GetReference();
}
thunk::PPB_AudioConfig_API* AudioConfigImpl::AsPPB_AudioConfig_API() {
return this;
}
PP_AudioSampleRate AudioConfigImpl::GetSampleRate() {
return sample_rate_;
}
uint32_t AudioConfigImpl::GetSampleFrameCount() {
return sample_frame_count_;
}
bool AudioConfigImpl::Init(PP_AudioSampleRate sample_rate,
uint32_t sample_frame_count) {
// TODO(brettw): Currently we don't actually check what the hardware
// supports, so just allow sample rates of the "guaranteed working" ones.
if (sample_rate != PP_AUDIOSAMPLERATE_44100 &&
sample_rate != PP_AUDIOSAMPLERATE_48000)
return false;
// TODO(brettw): Currently we don't actually query to get a value from the
// hardware, so just validate the range.
if (sample_frame_count > PP_AUDIOMAXSAMPLEFRAMECOUNT ||
sample_frame_count < PP_AUDIOMINSAMPLEFRAMECOUNT)
return false;
sample_rate_ = sample_rate;
sample_frame_count_ = sample_frame_count;
return true;
}
} // namespace ppapi