929c02a479
This is similar to MatchesRtpCodec but not an exact match of parameters, unspecified parameters are treated as default. Use IsSameRtpCodec for comparison when codec is configured via encodings. Bug: b:299588022 Change-Id: I0ea800e50af6f5666e3e867a928e15b0aa044635 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/365142 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Åsa Persson <asapersson@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43272}
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
/*
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* Copyright 2024 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MEDIA_BASE_CODEC_COMPARATORS_H_
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#define MEDIA_BASE_CODEC_COMPARATORS_H_
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#include <optional>
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#include <vector>
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#include "api/rtp_parameters.h"
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#include "media/base/codec.h"
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namespace webrtc {
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// Comparison used for the Codec::Matches function
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bool MatchesWithCodecRules(const cricket::Codec& left_codec,
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const cricket::Codec& codec);
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// Comparison that also checks on codecs referenced by PT in the
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// fmtp line, as used with RED and RTX "codecs".
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bool MatchesWithReferenceAttributes(const cricket::Codec& left_codec,
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const cricket::Codec& right_codec);
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// Finds a codec in `codecs2` that matches `codec_to_match`, which is
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// a member of `codecs1`. If `codec_to_match` is an RED or RTX codec, both
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// the codecs themselves and their associated codecs must match.
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// The purpose of this function is that codecs1 and codecs2 are different
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// PT numbering spaces, and it is trying to find the codec in codecs2
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// that has the same functionality as `codec_to_match` so that its PT
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// can be used in place of the original.
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std::optional<cricket::Codec> FindMatchingCodec(
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const std::vector<cricket::Codec>& codecs1,
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const std::vector<cricket::Codec>& codecs2,
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const cricket::Codec& codec_to_match);
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// Similar to `Codec::MatchesRtpCodec` but not an exact match of parameters.
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// Unspecified parameters are treated as default.
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bool IsSameRtpCodec(const cricket::Codec& codec, const RtpCodec& rtp_codec);
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} // namespace webrtc
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#endif // MEDIA_BASE_CODEC_COMPARATORS_H_
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