vp9_profile.h (1763B)
1 /* 2 * Copyright (c) 2021 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_VP9_PROFILE_H_ 12 #define API_VIDEO_CODECS_VP9_PROFILE_H_ 13 14 #include <optional> 15 #include <string> 16 17 #include "api/rtp_parameters.h" 18 #include "rtc_base/system/rtc_export.h" 19 20 namespace webrtc { 21 22 // Profile information for VP9 video. 23 extern RTC_EXPORT const char kVP9FmtpProfileId[]; 24 25 enum class VP9Profile { 26 kProfile0, 27 kProfile1, 28 kProfile2, 29 kProfile3, 30 }; 31 32 // Helper functions to convert VP9Profile to std::string. Returns "0" by 33 // default. 34 RTC_EXPORT std::string VP9ProfileToString(VP9Profile profile); 35 36 // Helper functions to convert std::string to VP9Profile. Returns null if given 37 // an invalid profile string. 38 std::optional<VP9Profile> StringToVP9Profile(const std::string& str); 39 40 // Parse profile that is represented as a string of single digit contained in an 41 // SDP key-value map. A default profile(kProfile0) will be returned if the 42 // profile key is missing. Nothing will be returned if the key is present but 43 // the string is invalid. 44 RTC_EXPORT std::optional<VP9Profile> ParseSdpForVP9Profile( 45 const CodecParameterMap& params); 46 47 // Returns true if the parameters have the same VP9 profile, or neither contains 48 // VP9 profile. 49 bool VP9IsSameProfile(const CodecParameterMap& params1, 50 const CodecParameterMap& params2); 51 52 } // namespace webrtc 53 54 #endif // API_VIDEO_CODECS_VP9_PROFILE_H_