webrtc_media_engine.h

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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 <vector>

#include "absl/strings/string_view.h"

#include "api/array_view.h"

#include "api/field_trials_view.h"

#include "api/rtp_parameters.h"

#include "api/transport/bitrate_settings.h"

#include "media/base/codec.h"

namespace cricket {

// 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_