1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/transport/rtp/dependency_descriptor.cc b/third_party/libwebrtc/api/transport/rtp/dependency_descriptor.cc
new file mode 100644
index 0000000000..e784853cd6
--- /dev/null
+++ b/third_party/libwebrtc/api/transport/rtp/dependency_descriptor.cc
@@ -0,0 +1,54 @@
+/*
+ *  Copyright (c) 2020 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 "api/transport/rtp/dependency_descriptor.h"
+
+#include "absl/container/inlined_vector.h"
+#include "absl/strings/string_view.h"
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+constexpr int DependencyDescriptor::kMaxSpatialIds;
+constexpr int DependencyDescriptor::kMaxTemporalIds;
+constexpr int DependencyDescriptor::kMaxTemplates;
+constexpr int DependencyDescriptor::kMaxDecodeTargets;
+
+namespace webrtc_impl {
+
+absl::InlinedVector<DecodeTargetIndication, 10> StringToDecodeTargetIndications(
+    absl::string_view symbols) {
+  absl::InlinedVector<DecodeTargetIndication, 10> dtis;
+  dtis.reserve(symbols.size());
+  for (char symbol : symbols) {
+    DecodeTargetIndication indication;
+    switch (symbol) {
+      case '-':
+        indication = DecodeTargetIndication::kNotPresent;
+        break;
+      case 'D':
+        indication = DecodeTargetIndication::kDiscardable;
+        break;
+      case 'R':
+        indication = DecodeTargetIndication::kRequired;
+        break;
+      case 'S':
+        indication = DecodeTargetIndication::kSwitch;
+        break;
+      default:
+        RTC_DCHECK_NOTREACHED();
+    }
+    dtis.push_back(indication);
+  }
+  return dtis;
+}
+
+}  // namespace webrtc_impl
+}  // namespace webrtc