1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_device/dummy/file_audio_device_factory.cc b/third_party/libwebrtc/modules/audio_device/dummy/file_audio_device_factory.cc
new file mode 100644
index 0000000000..8c41111478
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_device/dummy/file_audio_device_factory.cc
@@ -0,0 +1,62 @@
+/*
+ *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/audio_device/dummy/file_audio_device_factory.h"
+
+#include <stdio.h>
+
+#include <cstdlib>
+
+#include "absl/strings/string_view.h"
+#include "modules/audio_device/dummy/file_audio_device.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/string_utils.h"
+
+namespace webrtc {
+
+bool FileAudioDeviceFactory::_isConfigured = false;
+char FileAudioDeviceFactory::_inputAudioFilename[MAX_FILENAME_LEN] = "";
+char FileAudioDeviceFactory::_outputAudioFilename[MAX_FILENAME_LEN] = "";
+
+FileAudioDevice* FileAudioDeviceFactory::CreateFileAudioDevice() {
+  // Bail out here if the files haven't been set explicitly.
+  // audio_device_impl.cc should then fall back to dummy audio.
+  if (!_isConfigured) {
+    RTC_LOG(LS_WARNING)
+        << "WebRTC configured with WEBRTC_DUMMY_FILE_DEVICES but "
+           "no device files supplied. Will fall back to dummy "
+           "audio.";
+
+    return nullptr;
+  }
+  return new FileAudioDevice(_inputAudioFilename, _outputAudioFilename);
+}
+
+void FileAudioDeviceFactory::SetFilenamesToUse(
+    absl::string_view inputAudioFilename,
+    absl::string_view outputAudioFilename) {
+#ifdef WEBRTC_DUMMY_FILE_DEVICES
+  RTC_DCHECK_LT(inputAudioFilename.size(), MAX_FILENAME_LEN);
+  RTC_DCHECK_LT(outputAudioFilename.size(), MAX_FILENAME_LEN);
+
+  // Copy the strings since we don't know the lifetime of the input pointers.
+  rtc::strcpyn(_inputAudioFilename, MAX_FILENAME_LEN, inputAudioFilename);
+  rtc::strcpyn(_outputAudioFilename, MAX_FILENAME_LEN, outputAudioFilename);
+  _isConfigured = true;
+#else
+  // Sanity: must be compiled with the right define to run this.
+  printf(
+      "Trying to use dummy file devices, but is not compiled "
+      "with WEBRTC_DUMMY_FILE_DEVICES. Bailing out.\n");
+  std::exit(1);
+#endif
+}
+
+}  // namespace webrtc