av1_profile.h (1904B)
1 /* 2 * Copyright (c) 2022 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef API_VIDEO_CODECS_AV1_PROFILE_H_ 12 #define API_VIDEO_CODECS_AV1_PROFILE_H_ 13 14 #include <optional> 15 16 #include "absl/strings/string_view.h" 17 #include "api/rtp_parameters.h" 18 #include "rtc_base/system/rtc_export.h" 19 20 namespace webrtc { 21 22 // Profiles can be found at: 23 // https://aomedia.org/av1/specification/annex-a/#profiles 24 // The enum values match the number specified in the SDP. 25 enum class AV1Profile { 26 kProfile0 = 0, 27 kProfile1 = 1, 28 kProfile2 = 2, 29 }; 30 31 // Helper function which converts an AV1Profile to std::string. Returns "0" if 32 // an unknown value is passed in. 33 RTC_EXPORT absl::string_view AV1ProfileToString(AV1Profile profile); 34 35 // Helper function which converts a std::string to AV1Profile. Returns null if 36 // |profile| is not a valid profile string. 37 std::optional<AV1Profile> StringToAV1Profile(absl::string_view profile); 38 39 // Parses an SDP key-value map of format parameters to retrive an AV1 profile. 40 // Returns an AV1Profile if one has been specified, `kProfile0` if no profile is 41 // specified and an empty value if the profile key is present but contains an 42 // invalid value. 43 RTC_EXPORT std::optional<AV1Profile> ParseSdpForAV1Profile( 44 const CodecParameterMap& params); 45 46 // Returns true if the parameters have the same AV1 profile or neither contains 47 // an AV1 profile, otherwise false. 48 bool AV1IsSameProfile(const CodecParameterMap& params1, 49 const CodecParameterMap& params2); 50 51 } // namespace webrtc 52 53 #endif // API_VIDEO_CODECS_AV1_PROFILE_H_