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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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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32 } | 32 } |
33 | 33 |
34 size_t PushSincResampler::Resample(const int16_t* source, | 34 size_t PushSincResampler::Resample(const int16_t* source, |
35 size_t source_length, | 35 size_t source_length, |
36 int16_t* destination, | 36 int16_t* destination, |
37 size_t destination_capacity) { | 37 size_t destination_capacity) { |
38 if (!float_buffer_.get()) | 38 if (!float_buffer_.get()) |
39 float_buffer_.reset(new float[destination_frames_]); | 39 float_buffer_.reset(new float[destination_frames_]); |
40 | 40 |
41 source_ptr_int_ = source; | 41 source_ptr_int_ = source; |
42 // Pass nullptr as the float source to have Run() read from the int16 source. | 42 // Pass nullptr as the float source to have Run() read from the int16_t |
| 43 // source. |
43 Resample(nullptr, source_length, float_buffer_.get(), destination_frames_); | 44 Resample(nullptr, source_length, float_buffer_.get(), destination_frames_); |
44 FloatS16ToS16(float_buffer_.get(), destination_frames_, destination); | 45 FloatS16ToS16(float_buffer_.get(), destination_frames_, destination); |
45 source_ptr_int_ = nullptr; | 46 source_ptr_int_ = nullptr; |
46 return destination_frames_; | 47 return destination_frames_; |
47 } | 48 } |
48 | 49 |
49 size_t PushSincResampler::Resample(const float* source, | 50 size_t PushSincResampler::Resample(const float* source, |
50 size_t source_length, | 51 size_t source_length, |
51 float* destination, | 52 float* destination, |
52 size_t destination_capacity) { | 53 size_t destination_capacity) { |
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94 if (source_ptr_) { | 95 if (source_ptr_) { |
95 std::memcpy(destination, source_ptr_, frames * sizeof(*destination)); | 96 std::memcpy(destination, source_ptr_, frames * sizeof(*destination)); |
96 } else { | 97 } else { |
97 for (size_t i = 0; i < frames; ++i) | 98 for (size_t i = 0; i < frames; ++i) |
98 destination[i] = static_cast<float>(source_ptr_int_[i]); | 99 destination[i] = static_cast<float>(source_ptr_int_[i]); |
99 } | 100 } |
100 source_available_ -= frames; | 101 source_available_ -= frames; |
101 } | 102 } |
102 | 103 |
103 } // namespace webrtc | 104 } // namespace webrtc |
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