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Fix AV1 when SDP reports RTP/AVPF (RTP with Feedback via RTCP for key… #88

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Merged
RogerHardiman merged 1 commit into from
Oct 13, 2025
Merged

Fix AV1 when SDP reports RTP/AVPF (RTP with Feedback via RTCP for key… #88

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5 changes: 3 additions & 2 deletions lib/RTSPClient.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ import {
import * as transform from "sdp-transform";
import RTPPacket from "./transports/RTPPacket";
const RTP_AVP = "RTP/AVP";
const RTP_AVPF = "RTP/AVPF"; // Used by AV1. This is RTP with Feedback (via RTCP) to request Keyframes via RTCP

const STATUS_OK = 200;
const STATUS_UNAUTH = 401;
Expand Down Expand Up @@ -267,7 +268,7 @@ export default class RTSPClient extends EventEmitter {
);
}

// For now, only RTP/AVP is supported. (Some RTSPS servers use RTP/SAVP)
// For now, only RTP/AVP and RTP/AVPF are supported. (Some RTSPS servers use RTP/SAVP)
const { media } = transform.parse(describeRes.mediaHeaders.join("\r\n"));

// Loop over the Media Streams in the SDP looking for Video or Audio
Expand Down Expand Up @@ -315,7 +316,7 @@ export default class RTSPClient extends EventEmitter {

if (
mediaSource.type === "video" &&
mediaSource.protocol === RTP_AVP &&
(mediaSource.protocol === RTP_AVP || mediaSource.protocol === RTP_AVPF) &&
mediaSource.rtp[0].codec === "AV1"
) {
this.emit("log", "AV1 Video Stream Found in SDP", "");
Expand Down
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