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/*
* Copyright 2017 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 "pc/sdp_utils.h"
#include <memory>
#include <utility>
#include "api/jsep.h"
#include "api/jsep_session_description.h"
#include "p2p/base/transport_info.h"
#include "pc/session_description.h"
#include "rtc_base/checks.h"
namespace webrtc {
std::unique_ptr<SessionDescriptionInterface> CloneSessionDescription(
const SessionDescriptionInterface* sdesc) {
RTC_DCHECK(sdesc);
return CloneSessionDescriptionAsType(sdesc, sdesc->GetType());
}
std::unique_ptr<SessionDescriptionInterface> CloneSessionDescriptionAsType(
const SessionDescriptionInterface* sdesc,
SdpType type) {
RTC_DCHECK(sdesc);
auto clone = std::make_unique<JsepSessionDescription>(type);
if (sdesc->description()) {
clone->Initialize(sdesc->description()->Clone(), sdesc->session_id(),
sdesc->session_version());
}
// As of writing, our version of GCC does not allow returning a unique_ptr of
// a subclass as a unique_ptr of a base class. To get around this, we need to
// std::move the return value.
return std::move(clone);
}
bool SdpContentsAll(SdpContentPredicate pred, const SessionDescription* desc) {
RTC_DCHECK(desc);
for (const auto& content : desc->contents()) {
const auto* transport_info = desc->GetTransportInfoByName(content.mid());
if (!pred(&content, transport_info)) {
return false;
}
}
return true;
}
bool SdpContentsNone(SdpContentPredicate pred, const SessionDescription* desc) {
return SdpContentsAll(
[pred](const ContentInfo* content_info,
const TransportInfo* transport_info) {
return !pred(content_info, transport_info);
},
desc);
}
void SdpContentsForEach(SdpContentMutator fn, SessionDescription* desc) {
RTC_DCHECK(desc);
for (auto& content : desc->contents()) {
auto* transport_info = desc->GetTransportInfoByName(content.mid());
fn(&content, transport_info);
}
}
} // namespace webrtc
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