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/*
* Copyright (c) 2011 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.
*/
#ifndef MEDIA_ENGINE_WEBRTC_MEDIA_ENGINE_H_
#define MEDIA_ENGINE_WEBRTC_MEDIA_ENGINE_H_
#include <memory>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/array_view.h"
#include "api/audio/audio_frame_processor.h"
#include "api/audio/audio_mixer.h"
#include "api/audio_codecs/audio_decoder_factory.h"
#include "api/audio_codecs/audio_encoder_factory.h"
#include "api/field_trials_view.h"
#include "api/rtp_parameters.h"
#include "api/scoped_refptr.h"
#include "api/task_queue/task_queue_factory.h"
#include "api/transport/bitrate_settings.h"
#include "api/video_codecs/video_decoder_factory.h"
#include "api/video_codecs/video_encoder_factory.h"
#include "media/base/codec.h"
#include "media/base/media_engine.h"
#include "modules/audio_device/include/audio_device.h"
#include "modules/audio_processing/include/audio_processing.h"
#include "rtc_base/system/rtc_export.h"
namespace cricket {
struct MediaEngineDependencies {
MediaEngineDependencies() = default;
MediaEngineDependencies(const MediaEngineDependencies&) = delete;
MediaEngineDependencies(MediaEngineDependencies&&) = default;
MediaEngineDependencies& operator=(const MediaEngineDependencies&) = delete;
MediaEngineDependencies& operator=(MediaEngineDependencies&&) = default;
~MediaEngineDependencies() = default;
webrtc::TaskQueueFactory* task_queue_factory = nullptr;
rtc::scoped_refptr<webrtc::AudioDeviceModule> adm;
rtc::scoped_refptr<webrtc::AudioEncoderFactory> audio_encoder_factory;
rtc::scoped_refptr<webrtc::AudioDecoderFactory> audio_decoder_factory;
rtc::scoped_refptr<webrtc::AudioMixer> audio_mixer;
rtc::scoped_refptr<webrtc::AudioProcessing> audio_processing;
// TODO(bugs.webrtc.org/15111):
// Remove the raw AudioFrameProcessor pointer in the follow-up.
webrtc::AudioFrameProcessor* audio_frame_processor = nullptr;
std::unique_ptr<webrtc::AudioFrameProcessor> owned_audio_frame_processor;
std::unique_ptr<webrtc::VideoEncoderFactory> video_encoder_factory;
std::unique_ptr<webrtc::VideoDecoderFactory> video_decoder_factory;
const webrtc::FieldTrialsView* trials = nullptr;
};
// CreateMediaEngine may be called on any thread, though the engine is
// only expected to be used on one thread, internally called the "worker
// thread". This is the thread Init must be called on.
RTC_EXPORT std::unique_ptr<MediaEngineInterface> CreateMediaEngine(
MediaEngineDependencies dependencies);
// Verify that extension IDs are within 1-byte extension range and are not
// overlapping, and that they form a legal change from previously registerd
// extensions (if any).
bool ValidateRtpExtensions(
rtc::ArrayView<const webrtc::RtpExtension> extennsions,
rtc::ArrayView<const webrtc::RtpExtension> old_extensions);
// Discard any extensions not validated by the 'supported' predicate. Duplicate
// extensions are removed if 'filter_redundant_extensions' is set, and also any
// mutually exclusive extensions (see implementation for details) are removed.
std::vector<webrtc::RtpExtension> FilterRtpExtensions(
const std::vector<webrtc::RtpExtension>& extensions,
bool (*supported)(absl::string_view),
bool filter_redundant_extensions,
const webrtc::FieldTrialsView& trials);
webrtc::BitrateConstraints GetBitrateConfigForCodec(const Codec& codec);
} // namespace cricket
#endif // MEDIA_ENGINE_WEBRTC_MEDIA_ENGINE_H_
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