media/base/vp9_profile.h

/*
 *  Copyright (c) 2018 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 MEDIA_BASE_VP9_PROFILE_H_
#define MEDIA_BASE_VP9_PROFILE_H_

#include <map>
#include <string>

#include "absl/types/optional.h"
#include "api/video_codecs/sdp_video_format.h"
#include "common_types.h"  // NOLINT(build/include)

namespace webrtc {

// Profile information for VP9 video.
extern const char kVP9FmtpProfileId[];

enum class VP9Profile {
  kProfile0,
  kProfile2,
};

// Helper functions to convert VP9Profile to std::string. Returns "0" by
// default.
std::string VP9ProfileToString(VP9Profile profile);

// Helper functions to convert std::string to VP9Profile. Returns null if given
// an invalid profile string.
absl::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.
absl::optional<VP9Profile> ParseSdpForVP9Profile(
    const SdpVideoFormat::Parameters& params);

// Returns true if the parameters have the same VP9 profile, or neither contains
// VP9 profile.
bool IsSameVP9Profile(const SdpVideoFormat::Parameters& params1,
                      const SdpVideoFormat::Parameters& params2);

}  // namespace webrtc

#endif  // MEDIA_BASE_VP9_PROFILE_H_