| /* | 
 |  *  Copyright (c) 2019 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 "media/engine/webrtc_media_engine_defaults.h" | 
 |  | 
 | #include "api/audio_codecs/builtin_audio_decoder_factory.h" | 
 | #include "api/audio_codecs/builtin_audio_encoder_factory.h" | 
 | #include "api/task_queue/default_task_queue_factory.h" | 
 | #include "api/video/builtin_video_bitrate_allocator_factory.h" | 
 | #include "api/video_codecs/builtin_video_decoder_factory.h" | 
 | #include "api/video_codecs/builtin_video_encoder_factory.h" | 
 | #include "modules/audio_processing/include/audio_processing.h" | 
 | #include "rtc_base/checks.h" | 
 |  | 
 | namespace webrtc { | 
 |  | 
 | void SetMediaEngineDefaults(cricket::MediaEngineDependencies* deps) { | 
 |   RTC_DCHECK(deps); | 
 |   if (deps->task_queue_factory == nullptr) { | 
 |     static TaskQueueFactory* const task_queue_factory = | 
 |         CreateDefaultTaskQueueFactory().release(); | 
 |     deps->task_queue_factory = task_queue_factory; | 
 |   } | 
 |   if (deps->audio_encoder_factory == nullptr) | 
 |     deps->audio_encoder_factory = CreateBuiltinAudioEncoderFactory(); | 
 |   if (deps->audio_decoder_factory == nullptr) | 
 |     deps->audio_decoder_factory = CreateBuiltinAudioDecoderFactory(); | 
 |   if (deps->audio_processing == nullptr) | 
 |     deps->audio_processing = AudioProcessingBuilder().Create(); | 
 |  | 
 |   if (deps->video_encoder_factory == nullptr) | 
 |     deps->video_encoder_factory = CreateBuiltinVideoEncoderFactory(); | 
 |   if (deps->video_decoder_factory == nullptr) | 
 |     deps->video_decoder_factory = CreateBuiltinVideoDecoderFactory(); | 
 | } | 
 |  | 
 | }  // namespace webrtc |