Repo created

TMessagesProj/jni/voip/webrtc/api/video_codecs/vp9_profile.cc

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+/*
+ *  Copyright (c) 2021 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/video_codecs/vp9_profile.h"
+
+#include <map>
+#include <utility>
+
+#include "rtc_base/string_to_number.h"
+
+namespace webrtc {
+
+// Profile information for VP9 video.
+const char kVP9FmtpProfileId[] = "profile-id";
+
+std::string VP9ProfileToString(VP9Profile profile) {
+  switch (profile) {
+    case VP9Profile::kProfile0:
+      return "0";
+    case VP9Profile::kProfile1:
+      return "1";
+    case VP9Profile::kProfile2:
+      return "2";
+    case VP9Profile::kProfile3:
+      return "3";
+  }
+  return "0";
+}
+
+absl::optional<VP9Profile> StringToVP9Profile(const std::string& str) {
+  const absl::optional<int> i = rtc::StringToNumber<int>(str);
+  if (!i.has_value())
+    return absl::nullopt;
+
+  switch (i.value()) {
+    case 0:
+      return VP9Profile::kProfile0;
+    case 1:
+      return VP9Profile::kProfile1;
+    case 2:
+      return VP9Profile::kProfile2;
+    case 3:
+      return VP9Profile::kProfile3;
+    default:
+      return absl::nullopt;
+  }
+}
+
+absl::optional<VP9Profile> ParseSdpForVP9Profile(
+    const CodecParameterMap& params) {
+  const auto profile_it = params.find(kVP9FmtpProfileId);
+  if (profile_it == params.end())
+    return VP9Profile::kProfile0;
+  const std::string& profile_str = profile_it->second;
+  return StringToVP9Profile(profile_str);
+}
+
+bool VP9IsSameProfile(const CodecParameterMap& params1,
+                      const CodecParameterMap& params2) {
+  const absl::optional<VP9Profile> profile = ParseSdpForVP9Profile(params1);
+  const absl::optional<VP9Profile> other_profile =
+      ParseSdpForVP9Profile(params2);
+  return profile && other_profile && profile == other_profile;
+}
+
+}  // namespace webrtc