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| 1 /* |
| 2 * Copyright (c) 2017 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/media/engine/adm_helpers.h" |
| 12 |
| 13 #include "webrtc/base/logging.h" |
| 14 #include "webrtc/modules/audio_device/include/audio_device.h" |
| 15 |
| 16 namespace webrtc { |
| 17 namespace adm_helpers { |
| 18 |
| 19 // On Windows Vista and newer, Microsoft introduced the concept of "Default |
| 20 // Communications Device". This means that there are two types of default |
| 21 // devices (old Wave Audio style default and Default Communications Device). |
| 22 // |
| 23 // On Windows systems which only support Wave Audio style default, uses either |
| 24 // -1 or 0 to select the default device. |
| 25 // |
| 26 // Using a #define for AUDIO_DEVICE since we will call *different* versions of |
| 27 // the ADM functions, depending on the ID type. |
| 28 #if defined(WEBRTC_WIN) |
| 29 #define AUDIO_DEVICE_ID \ |
| 30 (AudioDeviceModule::WindowsDeviceType::kDefaultCommunicationDevice) |
| 31 #else |
| 32 #define AUDIO_DEVICE_ID (0u) |
| 33 #endif // defined(WEBRTC_WIN) |
| 34 |
| 35 void SetRecordingDevice(AudioDeviceModule* adm) { |
| 36 RTC_DCHECK(adm); |
| 37 |
| 38 // Save recording status and stop recording. |
| 39 const bool was_recording = adm->Recording(); |
| 40 if (was_recording && adm->StopRecording() != 0) { |
| 41 LOG(LS_ERROR) << "Unable to stop recording."; |
| 42 return; |
| 43 } |
| 44 |
| 45 // Set device and stereo mode. |
| 46 if (adm->SetRecordingChannel(AudioDeviceModule::kChannelBoth) != 0) { |
| 47 LOG(LS_ERROR) << "Unable to set recording channel to kChannelBoth."; |
| 48 } |
| 49 if (adm->SetRecordingDevice(AUDIO_DEVICE_ID) != 0) { |
| 50 LOG(LS_ERROR) << "Unable to set recording device."; |
| 51 return; |
| 52 } |
| 53 |
| 54 // Init microphone, so user can do volume settings etc. |
| 55 if (adm->InitMicrophone() != 0) { |
| 56 LOG(LS_ERROR) << "Unable to access microphone."; |
| 57 } |
| 58 |
| 59 // Set number of channels |
| 60 bool available = false; |
| 61 if (adm->StereoRecordingIsAvailable(&available) != 0) { |
| 62 LOG(LS_ERROR) << "Failed to query stereo recording."; |
| 63 } |
| 64 if (adm->SetStereoRecording(available) != 0) { |
| 65 LOG(LS_ERROR) << "Failed to set stereo recording mode."; |
| 66 } |
| 67 |
| 68 // Restore recording if it was enabled already when calling this function. |
| 69 if (was_recording) { |
| 70 if (adm->InitRecording() != 0) { |
| 71 LOG(LS_ERROR) << "Failed to initialize recording."; |
| 72 return; |
| 73 } |
| 74 if (adm->StartRecording() != 0) { |
| 75 LOG(LS_ERROR) << "Failed to start recording."; |
| 76 return; |
| 77 } |
| 78 } |
| 79 |
| 80 LOG(LS_INFO) << "Set recording device."; |
| 81 } |
| 82 |
| 83 void SetPlayoutDevice(AudioDeviceModule* adm) { |
| 84 RTC_DCHECK(adm); |
| 85 |
| 86 // Save playing status and stop playout. |
| 87 const bool was_playing = adm->Playing(); |
| 88 if (was_playing && adm->StopPlayout() != 0) { |
| 89 LOG(LS_ERROR) << "Unable to stop playout."; |
| 90 } |
| 91 |
| 92 // Set device. |
| 93 if (adm->SetPlayoutDevice(AUDIO_DEVICE_ID) != 0) { |
| 94 LOG(LS_ERROR) << "Unable to set playout device."; |
| 95 return; |
| 96 } |
| 97 |
| 98 // Init speaker, so user can do volume settings etc. |
| 99 if (adm->InitSpeaker() != 0) { |
| 100 LOG(LS_ERROR) << "Unable to access speaker."; |
| 101 } |
| 102 |
| 103 // Set number of channels |
| 104 bool available = false; |
| 105 if (adm->StereoPlayoutIsAvailable(&available) != 0) { |
| 106 LOG(LS_ERROR) << "Failed to query stereo playout."; |
| 107 } |
| 108 if (adm->SetStereoPlayout(available) != 0) { |
| 109 LOG(LS_ERROR) << "Failed to set stereo playout mode."; |
| 110 } |
| 111 |
| 112 // Restore recording if it was enabled already when calling this function. |
| 113 if (was_playing) { |
| 114 if (adm->InitPlayout() != 0) { |
| 115 LOG(LS_ERROR) << "Failed to initialize playout."; |
| 116 return; |
| 117 } |
| 118 if (adm->StartPlayout() != 0) { |
| 119 LOG(LS_ERROR) << "Failed to start playout."; |
| 120 return; |
| 121 } |
| 122 } |
| 123 |
| 124 LOG(LS_INFO) << "Set playout device."; |
| 125 } |
| 126 |
| 127 } // namespace adm_helpers |
| 128 } // namespace webrtc |
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