| /* |
| * 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 <string> |
| #include <utility> |
| |
| #include "absl/types/optional.h" |
| #include "api/rtp_parameters.h" |
| #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 |