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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 SdpVideoFormat::Parameters& 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 SdpVideoFormat::Parameters& params1,
const SdpVideoFormat::Parameters& 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
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