vp9_profile.h - mozsearch

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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.

*/

#ifndef API_VIDEO_CODECS_VP9_PROFILE_H_

#define API_VIDEO_CODECS_VP9_PROFILE_H_

#include <optional>

#include <string>

#include "api/rtp_parameters.h"

#include "rtc_base/system/rtc_export.h"

namespace webrtc {

// Profile information for VP9 video.

extern RTC_EXPORT const char kVP9FmtpProfileId[];

enum class VP9Profile {

  kProfile0,

  kProfile1,

  kProfile2,

  kProfile3,

};

// Helper functions to convert VP9Profile to std::string. Returns "0" by

// default.

RTC_EXPORT std::string VP9ProfileToString(VP9Profile profile);

// Helper functions to convert std::string to VP9Profile. Returns null if given

// an invalid profile string.

std::optional<VP9Profile> StringToVP9Profile(const std::string& str);

// Parse profile that is represented as a string of single digit contained in an

// SDP key-value map. A default profile(kProfile0) will be returned if the

// profile key is missing. Nothing will be returned if the key is present but

// the string is invalid.

RTC_EXPORT std::optional<VP9Profile> ParseSdpForVP9Profile(

    const CodecParameterMap& params);

// Returns true if the parameters have the same VP9 profile, or neither contains

// VP9 profile.

bool VP9IsSameProfile(const CodecParameterMap& params1,

                      const CodecParameterMap& params2);

}  // namespace webrtc

#endif  // API_VIDEO_CODECS_VP9_PROFILE_H_