优先使用静态 payload type 值 (#1206)

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Xiaofeng Wang 2021-11-10 14:45:37 +08:00 committed by GitHub
parent e51a78ebdc
commit 9aaf3ce2ff
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@ -58,7 +58,18 @@ Sdp::Ptr G711Track::getSdp() {
WarnL << getCodecName() << " Track未准备好";
return nullptr;
}
return std::make_shared<G711Sdp>(getCodecId(), getAudioSampleRate(), getAudioChannel(), getBitRate() / 1024);
const auto codec = getCodecId();
const auto sample_rate = getAudioSampleRate();
const auto audio_channel = getAudioChannel();
const auto bitrate = getBitRate() >> 10;
auto payload_type = 98;
if (sample_rate == 8000 && audio_channel == 1) {
// https://datatracker.ietf.org/doc/html/rfc3551#section-6
payload_type = (codec == CodecG711U) ? Rtsp::PT_PCMU : Rtsp::PT_PCMA;
}
return std::make_shared<G711Sdp>(codec, sample_rate, audio_channel, bitrate, payload_type);
}
}//namespace mediakit