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Defer buffered AirPlay 2 latency offset conversion

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prhodey
2026-08-19 20:10:50 -04:00
parent 427061fb48
commit 4df0145372
2 changed files with 7 additions and 7 deletions
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rtp.c
+5 -2
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@@ -1488,8 +1488,11 @@ int get_ptp_anchor_local_time_info(rtsp_conn_info *conn, uint32_t *anchorRTP,
}
if (conn->last_anchor_info_is_valid != 0) {
if (anchorRTP != NULL)
*anchorRTP = conn->last_anchor_rtptime;
if (anchorRTP != NULL) {
// Use the current rate in case the stream format has changed.
int32_t added_latency = (int32_t)(config.audio_backend_latency_offset * conn->input_rate);
*anchorRTP = conn->last_anchor_rtptime - added_latency;
}
if (anchorLocalTime != NULL)
*anchorLocalTime = conn->last_anchor_local_time;
}
rtsp.c
+2 -5
View File
@@ -1453,11 +1453,8 @@ void handle_setrateanchori(rtsp_conn_info *conn, rtsp_message *req, rtsp_message
// debug(1, "anchor rtpTime is %" PRId64 ".", rtpTime);
uint32_t anchorRTPTime = rtpTime;
int32_t added_latency = (int32_t)(config.audio_backend_latency_offset * conn->input_rate);
// debug(1,"anchorRTPTime: %" PRIu32 ", added latency: %" PRId32 ".", anchorRTPTime,
// added_latency);
set_ptp_anchor_info(conn, conn->networkTimeTimelineID, anchorRTPTime - added_latency,
anchorTimeNanoseconds);
// Store the raw anchor; apply the latency offset when it is used.
set_ptp_anchor_info(conn, conn->networkTimeTimelineID, anchorRTPTime, anchorTimeNanoseconds);
}
item = plist_dict_get_item(messagePlist, "rate");