| /* |
| * Copyright 2024 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_CODEC_COMPARATORS_H_ |
| #define MEDIA_BASE_CODEC_COMPARATORS_H_ |
| |
| #include <optional> |
| #include <vector> |
| |
| #include "api/rtp_parameters.h" |
| #include "media/base/codec.h" |
| |
| namespace webrtc { |
| |
| // Comparison used in the PayloadTypePicker |
| bool MatchesForSdp(const cricket::Codec& codec_1, |
| const cricket::Codec& codec_2); |
| |
| // Comparison used for the Codec::Matches function |
| bool MatchesWithCodecRules(const cricket::Codec& left_codec, |
| const cricket::Codec& codec); |
| |
| // Finds a codec in `codecs2` that matches `codec_to_match`, which is |
| // a member of `codecs1`. If `codec_to_match` is an RED or RTX codec, both |
| // the codecs themselves and their associated codecs must match. |
| // The purpose of this function is that codecs1 and codecs2 are different |
| // PT numbering spaces, and it is trying to find the codec in codecs2 |
| // that has the same functionality as `codec_to_match` so that its PT |
| // can be used in place of the original. |
| std::optional<cricket::Codec> FindMatchingCodec( |
| const std::vector<cricket::Codec>& codecs1, |
| const std::vector<cricket::Codec>& codecs2, |
| const cricket::Codec& codec_to_match); |
| |
| // Similar to `Codec::MatchesRtpCodec` but not an exact match of parameters. |
| // Unspecified parameters are treated as default. |
| bool IsSameRtpCodec(const cricket::Codec& codec, const RtpCodec& rtp_codec); |
| |
| // Similar to `IsSameRtpCodec` but ignoring the level related parameter. |
| bool IsSameRtpCodecIgnoringLevel(const cricket::Codec& codec, |
| const RtpCodec& rtp_codec); |
| } // namespace webrtc |
| |
| #endif // MEDIA_BASE_CODEC_COMPARATORS_H_ |