1 /*
2 * Copyright (c) 2014 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 "modules/audio_device/dummy/file_audio_device_factory.h"
12
13 #include <stdio.h>
14
15 #include <cstdlib>
16
17 #include "absl/strings/string_view.h"
18 #include "modules/audio_device/dummy/file_audio_device.h"
19 #include "rtc_base/logging.h"
20 #include "rtc_base/string_utils.h"
21
22 namespace webrtc {
23
24 bool FileAudioDeviceFactory::_isConfigured = false;
25 char FileAudioDeviceFactory::_inputAudioFilename[MAX_FILENAME_LEN] = "";
26 char FileAudioDeviceFactory::_outputAudioFilename[MAX_FILENAME_LEN] = "";
27
CreateFileAudioDevice()28 FileAudioDevice* FileAudioDeviceFactory::CreateFileAudioDevice() {
29 // Bail out here if the files haven't been set explicitly.
30 // audio_device_impl.cc should then fall back to dummy audio.
31 if (!_isConfigured) {
32 RTC_LOG(LS_WARNING)
33 << "WebRTC configured with WEBRTC_DUMMY_FILE_DEVICES but "
34 "no device files supplied. Will fall back to dummy "
35 "audio.";
36
37 return nullptr;
38 }
39 return new FileAudioDevice(_inputAudioFilename, _outputAudioFilename);
40 }
41
SetFilenamesToUse(absl::string_view inputAudioFilename,absl::string_view outputAudioFilename)42 void FileAudioDeviceFactory::SetFilenamesToUse(
43 absl::string_view inputAudioFilename,
44 absl::string_view outputAudioFilename) {
45 #ifdef WEBRTC_DUMMY_FILE_DEVICES
46 RTC_DCHECK_LT(inputAudioFilename.size(), MAX_FILENAME_LEN);
47 RTC_DCHECK_LT(outputAudioFilename.size(), MAX_FILENAME_LEN);
48
49 // Copy the strings since we don't know the lifetime of the input pointers.
50 rtc::strcpyn(_inputAudioFilename, MAX_FILENAME_LEN, inputAudioFilename);
51 rtc::strcpyn(_outputAudioFilename, MAX_FILENAME_LEN, outputAudioFilename);
52 _isConfigured = true;
53 #else
54 // Sanity: must be compiled with the right define to run this.
55 printf(
56 "Trying to use dummy file devices, but is not compiled "
57 "with WEBRTC_DUMMY_FILE_DEVICES. Bailing out.\n");
58 std::exit(1);
59 #endif
60 }
61
62 } // namespace webrtc
63