1// Copyright 2014 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/proxy/audio_buffer_resource.h"
6
7#include "base/logging.h"
8#include "ppapi/c/pp_bool.h"
9#include "ppapi/shared_impl/media_stream_buffer.h"
10#include "ppapi/shared_impl/var.h"
11
12namespace ppapi {
13namespace proxy {
14
15AudioBufferResource::AudioBufferResource(PP_Instance instance,
16                                       int32_t index,
17                                       MediaStreamBuffer* buffer)
18    : Resource(OBJECT_IS_PROXY, instance),
19      index_(index),
20      buffer_(buffer) {
21  DCHECK_EQ(buffer_->header.type, MediaStreamBuffer::TYPE_AUDIO);
22}
23
24AudioBufferResource::~AudioBufferResource() {
25  CHECK(!buffer_) << "An unused (or unrecycled) buffer is destroyed.";
26}
27
28thunk::PPB_AudioBuffer_API* AudioBufferResource::AsPPB_AudioBuffer_API() {
29  return this;
30}
31
32PP_TimeDelta AudioBufferResource::GetTimestamp() {
33  if (!buffer_) {
34    VLOG(1) << "Buffer is invalid";
35    return 0.0;
36  }
37  return buffer_->audio.timestamp;
38}
39
40void AudioBufferResource::SetTimestamp(PP_TimeDelta timestamp) {
41  if (!buffer_) {
42    VLOG(1) << "Buffer is invalid";
43    return;
44  }
45  buffer_->audio.timestamp = timestamp;
46}
47
48PP_AudioBuffer_SampleRate AudioBufferResource::GetSampleRate() {
49  if (!buffer_) {
50    VLOG(1) << "Buffer is invalid";
51    return PP_AUDIOBUFFER_SAMPLERATE_UNKNOWN;
52  }
53  return buffer_->audio.sample_rate;
54}
55
56PP_AudioBuffer_SampleSize AudioBufferResource::GetSampleSize() {
57  if (!buffer_) {
58    VLOG(1) << "Buffer is invalid";
59    return PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN;
60  }
61  return PP_AUDIOBUFFER_SAMPLESIZE_16_BITS;
62}
63
64uint32_t AudioBufferResource::GetNumberOfChannels() {
65  if (!buffer_) {
66    VLOG(1) << "Buffer is invalid";
67    return 0;
68  }
69  return buffer_->audio.number_of_channels;
70}
71
72uint32_t AudioBufferResource::GetNumberOfSamples() {
73  if (!buffer_) {
74    VLOG(1) << "Buffer is invalid";
75    return 0;
76  }
77  return buffer_->audio.number_of_samples;
78}
79
80void* AudioBufferResource::GetDataBuffer() {
81  if (!buffer_) {
82    VLOG(1) << "Buffer is invalid";
83    return NULL;
84  }
85  return buffer_->audio.data;
86}
87
88uint32_t AudioBufferResource::GetDataBufferSize() {
89  if (!buffer_) {
90    VLOG(1) << "Buffer is invalid";
91    return 0;
92  }
93  return buffer_->audio.data_size;
94}
95
96MediaStreamBuffer* AudioBufferResource::GetBuffer() {
97  return buffer_;
98}
99
100int32_t AudioBufferResource::GetBufferIndex() {
101  return index_;
102}
103
104void AudioBufferResource::Invalidate() {
105  DCHECK(buffer_);
106  DCHECK_GE(index_, 0);
107  buffer_ = NULL;
108  index_ = -1;
109}
110
111}  // namespace proxy
112}  // namespace ppapi
113