71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
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/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "media/base/vp9_profile.h"
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#include <map>
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#include <utility>
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#include "rtc_base/string_to_number.h"
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namespace webrtc {
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// Profile information for VP9 video.
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const char kVP9FmtpProfileId[] = "profile-id";
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std::string VP9ProfileToString(VP9Profile profile) {
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switch (profile) {
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case VP9Profile::kProfile0:
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return "0";
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case VP9Profile::kProfile1:
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return "1";
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case VP9Profile::kProfile2:
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return "2";
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}
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return "0";
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}
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absl::optional<VP9Profile> StringToVP9Profile(const std::string& str) {
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const absl::optional<int> i = rtc::StringToNumber<int>(str);
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if (!i.has_value())
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return absl::nullopt;
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switch (i.value()) {
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case 0:
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return VP9Profile::kProfile0;
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case 1:
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return VP9Profile::kProfile1;
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case 2:
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return VP9Profile::kProfile2;
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default:
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return absl::nullopt;
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}
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return absl::nullopt;
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}
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absl::optional<VP9Profile> ParseSdpForVP9Profile(
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const SdpVideoFormat::Parameters& params) {
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const auto profile_it = params.find(kVP9FmtpProfileId);
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if (profile_it == params.end())
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return VP9Profile::kProfile0;
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const std::string& profile_str = profile_it->second;
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return StringToVP9Profile(profile_str);
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}
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bool IsSameVP9Profile(const SdpVideoFormat::Parameters& params1,
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const SdpVideoFormat::Parameters& params2) {
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const absl::optional<VP9Profile> profile = ParseSdpForVP9Profile(params1);
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const absl::optional<VP9Profile> other_profile =
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ParseSdpForVP9Profile(params2);
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return profile && other_profile && profile == other_profile;
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}
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} // namespace webrtc
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