1 /*
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
3 *
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
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include "webrtc/modules/audio_coding/neteq/tools/input_audio_file.h"
12
13 namespace webrtc {
14 namespace test {
15
InputAudioFile(const std::string file_name)16 InputAudioFile::InputAudioFile(const std::string file_name) {
17 fp_ = fopen(file_name.c_str(), "rb");
18 }
19
~InputAudioFile()20 InputAudioFile::~InputAudioFile() { fclose(fp_); }
21
Read(size_t samples,int16_t * destination)22 bool InputAudioFile::Read(size_t samples, int16_t* destination) {
23 if (!fp_) {
24 return false;
25 }
26 size_t samples_read = fread(destination, sizeof(int16_t), samples, fp_);
27 if (samples_read < samples) {
28 // Rewind and read the missing samples.
29 rewind(fp_);
30 size_t missing_samples = samples - samples_read;
31 if (fread(destination, sizeof(int16_t), missing_samples, fp_) <
32 missing_samples) {
33 // Could not read enough even after rewinding the file.
34 return false;
35 }
36 }
37 return true;
38 }
39
DuplicateInterleaved(const int16_t * source,size_t samples,size_t channels,int16_t * destination)40 void InputAudioFile::DuplicateInterleaved(const int16_t* source, size_t samples,
41 size_t channels,
42 int16_t* destination) {
43 for (size_t i = 0; i < samples; ++i) {
44 for (size_t j = 0; j < channels; ++j) {
45 destination[i * channels + j] = source[i];
46 }
47 }
48 }
49
50 } // namespace test
51 } // namespace webrtc
52