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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 |
11 #include "webrtc/common_audio/lapped_transform.h" | 11 #include "webrtc/common_audio/lapped_transform.h" |
12 | 12 |
13 #include <algorithm> | 13 #include <algorithm> |
14 #include <cstdlib> | 14 #include <cstdlib> |
15 #include <cstring> | 15 #include <cstring> |
16 | 16 |
17 #include "webrtc/base/checks.h" | 17 #include "webrtc/base/checks.h" |
18 #include "webrtc/common_audio/real_fourier.h" | 18 #include "webrtc/common_audio/real_fourier.h" |
19 | 19 |
20 namespace webrtc { | 20 namespace webrtc { |
21 | 21 |
22 void LappedTransform::BlockThunk::ProcessBlock(const float* const* input, | 22 void LappedTransform::BlockThunk::ProcessBlock(const float* const* input, |
23 size_t num_frames, | 23 size_t num_frames, |
24 int num_input_channels, | 24 int num_input_channels, |
25 int num_output_channels, | 25 int num_output_channels, |
26 float* const* output) { | 26 float* const* output) { |
27 CHECK_EQ(num_input_channels, parent_->num_in_channels_); | 27 RTC_CHECK_EQ(num_input_channels, parent_->num_in_channels_); |
28 CHECK_EQ(num_output_channels, parent_->num_out_channels_); | 28 RTC_CHECK_EQ(num_output_channels, parent_->num_out_channels_); |
29 CHECK_EQ(parent_->block_length_, num_frames); | 29 RTC_CHECK_EQ(parent_->block_length_, num_frames); |
30 | 30 |
31 for (int i = 0; i < num_input_channels; ++i) { | 31 for (int i = 0; i < num_input_channels; ++i) { |
32 memcpy(parent_->real_buf_.Row(i), input[i], | 32 memcpy(parent_->real_buf_.Row(i), input[i], |
33 num_frames * sizeof(*input[0])); | 33 num_frames * sizeof(*input[0])); |
34 parent_->fft_->Forward(parent_->real_buf_.Row(i), | 34 parent_->fft_->Forward(parent_->real_buf_.Row(i), |
35 parent_->cplx_pre_.Row(i)); | 35 parent_->cplx_pre_.Row(i)); |
36 } | 36 } |
37 | 37 |
38 size_t block_length = RealFourier::ComplexLength( | 38 size_t block_length = RealFourier::ComplexLength( |
39 RealFourier::FftOrder(num_frames)); | 39 RealFourier::FftOrder(num_frames)); |
40 CHECK_EQ(parent_->cplx_length_, block_length); | 40 RTC_CHECK_EQ(parent_->cplx_length_, block_length); |
41 parent_->block_processor_->ProcessAudioBlock(parent_->cplx_pre_.Array(), | 41 parent_->block_processor_->ProcessAudioBlock(parent_->cplx_pre_.Array(), |
42 num_input_channels, | 42 num_input_channels, |
43 parent_->cplx_length_, | 43 parent_->cplx_length_, |
44 num_output_channels, | 44 num_output_channels, |
45 parent_->cplx_post_.Array()); | 45 parent_->cplx_post_.Array()); |
46 | 46 |
47 for (int i = 0; i < num_output_channels; ++i) { | 47 for (int i = 0; i < num_output_channels; ++i) { |
48 parent_->fft_->Inverse(parent_->cplx_post_.Row(i), | 48 parent_->fft_->Inverse(parent_->cplx_post_.Row(i), |
49 parent_->real_buf_.Row(i)); | 49 parent_->real_buf_.Row(i)); |
50 memcpy(output[i], parent_->real_buf_.Row(i), | 50 memcpy(output[i], parent_->real_buf_.Row(i), |
(...skipping 25 matching lines...) Expand all Loading... |
76 cplx_length_(RealFourier::ComplexLength(fft_->order())), | 76 cplx_length_(RealFourier::ComplexLength(fft_->order())), |
77 real_buf_(num_in_channels, | 77 real_buf_(num_in_channels, |
78 block_length_, | 78 block_length_, |
79 RealFourier::kFftBufferAlignment), | 79 RealFourier::kFftBufferAlignment), |
80 cplx_pre_(num_in_channels, | 80 cplx_pre_(num_in_channels, |
81 cplx_length_, | 81 cplx_length_, |
82 RealFourier::kFftBufferAlignment), | 82 RealFourier::kFftBufferAlignment), |
83 cplx_post_(num_out_channels, | 83 cplx_post_(num_out_channels, |
84 cplx_length_, | 84 cplx_length_, |
85 RealFourier::kFftBufferAlignment) { | 85 RealFourier::kFftBufferAlignment) { |
86 CHECK(num_in_channels_ > 0 && num_out_channels_ > 0); | 86 RTC_CHECK(num_in_channels_ > 0 && num_out_channels_ > 0); |
87 CHECK_GT(block_length_, 0u); | 87 RTC_CHECK_GT(block_length_, 0u); |
88 CHECK_GT(chunk_length_, 0u); | 88 RTC_CHECK_GT(chunk_length_, 0u); |
89 CHECK(block_processor_); | 89 RTC_CHECK(block_processor_); |
90 | 90 |
91 // block_length_ power of 2? | 91 // block_length_ power of 2? |
92 CHECK_EQ(0u, block_length_ & (block_length_ - 1)); | 92 RTC_CHECK_EQ(0u, block_length_ & (block_length_ - 1)); |
93 } | 93 } |
94 | 94 |
95 void LappedTransform::ProcessChunk(const float* const* in_chunk, | 95 void LappedTransform::ProcessChunk(const float* const* in_chunk, |
96 float* const* out_chunk) { | 96 float* const* out_chunk) { |
97 blocker_.ProcessChunk(in_chunk, chunk_length_, num_in_channels_, | 97 blocker_.ProcessChunk(in_chunk, chunk_length_, num_in_channels_, |
98 num_out_channels_, out_chunk); | 98 num_out_channels_, out_chunk); |
99 } | 99 } |
100 | 100 |
101 } // namespace webrtc | 101 } // namespace webrtc |
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