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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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68 const T* const* channels() const { return channels(0); } | 68 const T* const* channels() const { return channels(0); } |
69 | 69 |
70 // Returns a pointer array to the channels for a specific band. | 70 // Returns a pointer array to the channels for a specific band. |
71 // Usage: | 71 // Usage: |
72 // channels(band)[channel][sample]. | 72 // channels(band)[channel][sample]. |
73 // Where: | 73 // Where: |
74 // 0 <= band < |num_bands_| | 74 // 0 <= band < |num_bands_| |
75 // 0 <= channel < |num_channels_| | 75 // 0 <= channel < |num_channels_| |
76 // 0 <= sample < |num_frames_per_band_| | 76 // 0 <= sample < |num_frames_per_band_| |
77 const T* const* channels(size_t band) const { | 77 const T* const* channels(size_t band) const { |
78 DCHECK_LT(band, num_bands_); | 78 RTC_DCHECK_LT(band, num_bands_); |
79 return &channels_[band * num_channels_]; | 79 return &channels_[band * num_channels_]; |
80 } | 80 } |
81 T* const* channels(size_t band) { | 81 T* const* channels(size_t band) { |
82 const ChannelBuffer<T>* t = this; | 82 const ChannelBuffer<T>* t = this; |
83 return const_cast<T* const*>(t->channels(band)); | 83 return const_cast<T* const*>(t->channels(band)); |
84 } | 84 } |
85 | 85 |
86 // Returns a pointer array to the bands for a specific channel. | 86 // Returns a pointer array to the bands for a specific channel. |
87 // Usage: | 87 // Usage: |
88 // bands(channel)[band][sample]. | 88 // bands(channel)[band][sample]. |
89 // Where: | 89 // Where: |
90 // 0 <= channel < |num_channels_| | 90 // 0 <= channel < |num_channels_| |
91 // 0 <= band < |num_bands_| | 91 // 0 <= band < |num_bands_| |
92 // 0 <= sample < |num_frames_per_band_| | 92 // 0 <= sample < |num_frames_per_band_| |
93 const T* const* bands(int channel) const { | 93 const T* const* bands(int channel) const { |
94 DCHECK_LT(channel, num_channels_); | 94 RTC_DCHECK_LT(channel, num_channels_); |
95 DCHECK_GE(channel, 0); | 95 RTC_DCHECK_GE(channel, 0); |
96 return &bands_[channel * num_bands_]; | 96 return &bands_[channel * num_bands_]; |
97 } | 97 } |
98 T* const* bands(int channel) { | 98 T* const* bands(int channel) { |
99 const ChannelBuffer<T>* t = this; | 99 const ChannelBuffer<T>* t = this; |
100 return const_cast<T* const*>(t->bands(channel)); | 100 return const_cast<T* const*>(t->bands(channel)); |
101 } | 101 } |
102 | 102 |
103 // Sets the |slice| pointers to the |start_frame| position for each channel. | 103 // Sets the |slice| pointers to the |start_frame| position for each channel. |
104 // Returns |slice| for convenience. | 104 // Returns |slice| for convenience. |
105 const T* const* Slice(T** slice, size_t start_frame) const { | 105 const T* const* Slice(T** slice, size_t start_frame) const { |
106 DCHECK_LT(start_frame, num_frames_); | 106 RTC_DCHECK_LT(start_frame, num_frames_); |
107 for (int i = 0; i < num_channels_; ++i) | 107 for (int i = 0; i < num_channels_; ++i) |
108 slice[i] = &channels_[i][start_frame]; | 108 slice[i] = &channels_[i][start_frame]; |
109 return slice; | 109 return slice; |
110 } | 110 } |
111 T** Slice(T** slice, size_t start_frame) { | 111 T** Slice(T** slice, size_t start_frame) { |
112 const ChannelBuffer<T>* t = this; | 112 const ChannelBuffer<T>* t = this; |
113 return const_cast<T**>(t->Slice(slice, start_frame)); | 113 return const_cast<T**>(t->Slice(slice, start_frame)); |
114 } | 114 } |
115 | 115 |
116 size_t num_frames() const { return num_frames_; } | 116 size_t num_frames() const { return num_frames_; } |
117 size_t num_frames_per_band() const { return num_frames_per_band_; } | 117 size_t num_frames_per_band() const { return num_frames_per_band_; } |
118 int num_channels() const { return num_channels_; } | 118 int num_channels() const { return num_channels_; } |
119 size_t num_bands() const { return num_bands_; } | 119 size_t num_bands() const { return num_bands_; } |
120 size_t size() const {return num_frames_ * num_channels_; } | 120 size_t size() const {return num_frames_ * num_channels_; } |
121 | 121 |
122 void SetDataForTesting(const T* data, size_t size) { | 122 void SetDataForTesting(const T* data, size_t size) { |
123 CHECK_EQ(size, this->size()); | 123 RTC_CHECK_EQ(size, this->size()); |
124 memcpy(data_.get(), data, size * sizeof(*data)); | 124 memcpy(data_.get(), data, size * sizeof(*data)); |
125 } | 125 } |
126 | 126 |
127 private: | 127 private: |
128 rtc::scoped_ptr<T[]> data_; | 128 rtc::scoped_ptr<T[]> data_; |
129 rtc::scoped_ptr<T* []> channels_; | 129 rtc::scoped_ptr<T* []> channels_; |
130 rtc::scoped_ptr<T* []> bands_; | 130 rtc::scoped_ptr<T* []> bands_; |
131 const size_t num_frames_; | 131 const size_t num_frames_; |
132 const size_t num_frames_per_band_; | 132 const size_t num_frames_per_band_; |
133 const int num_channels_; | 133 const int num_channels_; |
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160 | 160 |
161 mutable bool ivalid_; | 161 mutable bool ivalid_; |
162 mutable ChannelBuffer<int16_t> ibuf_; | 162 mutable ChannelBuffer<int16_t> ibuf_; |
163 mutable bool fvalid_; | 163 mutable bool fvalid_; |
164 mutable ChannelBuffer<float> fbuf_; | 164 mutable ChannelBuffer<float> fbuf_; |
165 }; | 165 }; |
166 | 166 |
167 } // namespace webrtc | 167 } // namespace webrtc |
168 | 168 |
169 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_CHANNEL_BUFFER_H_ | 169 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_CHANNEL_BUFFER_H_ |
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