bsncubed
f3779696d5
- aes67_sdp_sap: SAP (RFC 2974) announcer task. SAPv1 to 239.255.255.255:9875 every 30 s and within 1 s of any SDP change (config save, GM change), with the old hash deleted first. Active while aes67.discovery = sap, the stream is enabled, the AES67 interface has an IP and a PTP GM is known. Deletion when that stops and at shutdown (reboot/OTA) via a shutdown handler. TTL = aes67.ttl. - Docs: SAP implementation notes; session_ver bump on GM change still open. - Verified with a SAP listener: 30 s repeats with a stable hash; rename -> delete old + announce new (o= version follows); manual -> delete; sap -> announce; reboot and OTA -> delete at shutdown, first announce after boot only once the GM is known. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
16 lines
639 B
C
16 lines
639 B
C
// aes67_sdp_sap: SDP builder/parser and SAP announcer.
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// Core component: must not depend on main/ (project code).
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#pragma once
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#include <stddef.h>
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#include "esp_err.h"
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// Registers GET /stream.sdp and starts the SAP announcer (RFC 2974): 239.255.255.255:9875 every
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// 30 s and on SDP change while aes67.discovery is "sap", the stream is enabled and a PTP GM is
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// known (else ts-refclk would be all zeros); deletion
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// when that stops and at shutdown.
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esp_err_t aes67_sdp_sap_init(void);
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// Build the current SDP (RFC 4566 + RFC 7273, AES67). Returns the length, or 0 if it didn't fit.
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size_t aes67_sdp_build(char *buf, size_t size);
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