1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "ppapi/cpp/audio_config.h"
6
7#include "ppapi/cpp/instance_handle.h"
8#include "ppapi/cpp/module.h"
9#include "ppapi/cpp/module_impl.h"
10
11namespace pp {
12
13namespace {
14
15template <> const char* interface_name<PPB_AudioConfig_1_1>() {
16  return PPB_AUDIO_CONFIG_INTERFACE_1_1;
17}
18
19template <> const char* interface_name<PPB_AudioConfig_1_0>() {
20  return PPB_AUDIO_CONFIG_INTERFACE_1_0;
21}
22
23}  // namespace
24
25AudioConfig::AudioConfig()
26    : sample_rate_(PP_AUDIOSAMPLERATE_NONE),
27      sample_frame_count_(0) {
28}
29
30AudioConfig::AudioConfig(const InstanceHandle& instance,
31                         PP_AudioSampleRate sample_rate,
32                         uint32_t sample_frame_count)
33    : sample_rate_(sample_rate),
34      sample_frame_count_(sample_frame_count) {
35  if (has_interface<PPB_AudioConfig_1_1>()) {
36    PassRefFromConstructor(
37        get_interface<PPB_AudioConfig_1_1>()->CreateStereo16Bit(
38        instance.pp_instance(), sample_rate, sample_frame_count));
39  } else if (has_interface<PPB_AudioConfig_1_0>()) {
40    PassRefFromConstructor(
41        get_interface<PPB_AudioConfig_1_0>()->CreateStereo16Bit(
42        instance.pp_instance(), sample_rate, sample_frame_count));
43  }
44}
45
46// static
47PP_AudioSampleRate AudioConfig::RecommendSampleRate(
48    const InstanceHandle& instance) {
49  if (has_interface<PPB_AudioConfig_1_1>()) {
50    return get_interface<PPB_AudioConfig_1_1>()->
51        RecommendSampleRate(instance.pp_instance());
52  }
53  return PP_AUDIOSAMPLERATE_NONE;
54}
55
56// static
57uint32_t AudioConfig::RecommendSampleFrameCount(
58    const InstanceHandle& instance,
59    PP_AudioSampleRate sample_rate,
60    uint32_t requested_sample_frame_count) {
61  if (has_interface<PPB_AudioConfig_1_1>()) {
62    return get_interface<PPB_AudioConfig_1_1>()->
63        RecommendSampleFrameCount(instance.pp_instance(),
64                                  sample_rate,
65                                  requested_sample_frame_count);
66  }
67  if (has_interface<PPB_AudioConfig_1_0>()) {
68    return get_interface<PPB_AudioConfig_1_0>()->
69        RecommendSampleFrameCount(sample_rate,
70                                  requested_sample_frame_count);
71  }
72  return 0;
73}
74
75}  // namespace pp
76