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/*
* Copyright (c) 2022 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/av1_profile.h"
#include <map>
#include <utility>
#include "rtc_base/string_to_number.h"
namespace webrtc {
// Parameter name in the format parameter map for AV1 video.
const char kAV1FmtpProfile[] = "profile";
absl::string_view AV1ProfileToString(AV1Profile profile) {
switch (profile) {
case AV1Profile::kProfile0:
return "0";
case AV1Profile::kProfile1:
return "1";
case AV1Profile::kProfile2:
return "2";
}
return "0";
}
absl::optional<AV1Profile> StringToAV1Profile(absl::string_view str) {
const absl::optional<int> i = rtc::StringToNumber<int>(str);
if (!i.has_value())
return absl::nullopt;
switch (i.value()) {
case 0:
return AV1Profile::kProfile0;
case 1:
return AV1Profile::kProfile1;
case 2:
return AV1Profile::kProfile2;
default:
return absl::nullopt;
}
}
absl::optional<AV1Profile> ParseSdpForAV1Profile(
const SdpVideoFormat::Parameters& params) {
const auto profile_it = params.find(kAV1FmtpProfile);
if (profile_it == params.end())
return AV1Profile::kProfile0;
const std::string& profile_str = profile_it->second;
return StringToAV1Profile(profile_str);
}
bool AV1IsSameProfile(const SdpVideoFormat::Parameters& params1,
const SdpVideoFormat::Parameters& params2) {
const absl::optional<AV1Profile> profile = ParseSdpForAV1Profile(params1);
const absl::optional<AV1Profile> other_profile =
ParseSdpForAV1Profile(params2);
return profile && other_profile && profile == other_profile;
}
} // namespace webrtc
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