Add sdputils.h with useful functions for working with session descriptions
Bug: webrtc:8222
Change-Id: Iedeb65dad493721c5a4eddab254097171dfdb522
Reviewed-on: https://webrtc-review.googlesource.com/7120
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20192}diff --git a/pc/sdputils.h b/pc/sdputils.h
new file mode 100644
index 0000000..7d67fd8
--- /dev/null
+++ b/pc/sdputils.h
@@ -0,0 +1,54 @@
+/*
+ * 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.
+ */
+
+#ifndef PC_SDPUTILS_H_
+#define PC_SDPUTILS_H_
+
+#include <functional>
+#include <memory>
+
+#include "api/jsep.h"
+#include "p2p/base/sessiondescription.h"
+
+namespace webrtc {
+
+// Returns a copy of the given session description.
+std::unique_ptr<SessionDescriptionInterface> CloneSessionDescription(
+ const SessionDescriptionInterface* sdesc);
+
+// Function that takes a single session description content with its
+// corresponding transport and produces a boolean.
+typedef std::function<bool(const cricket::ContentInfo*,
+ const cricket::TransportInfo*)>
+ SdpContentPredicate;
+
+// Returns true if the predicate returns true for all contents in the given
+// session description.
+bool SdpContentsAll(SdpContentPredicate pred,
+ const cricket::SessionDescription* desc);
+
+// Returns true if the predicate returns true for none of the contents in the
+// given session description.
+bool SdpContentsNone(SdpContentPredicate pred,
+ const cricket::SessionDescription* desc);
+
+// Function that takes a single session description content with its
+// corresponding transport and can mutate the content and/or the transport.
+typedef std::function<void(cricket::ContentInfo*, cricket::TransportInfo*)>
+ SdpContentMutator;
+
+// Applies the mutator function over all contents in the given session
+// description.
+void SdpContentsForEach(SdpContentMutator fn,
+ cricket::SessionDescription* desc);
+
+} // namespace webrtc
+
+#endif // PC_SDPUTILS_H_