nils
b75edeedc3
Set variables for a Docker build (used by another workflow). / Set variables required for docker build. (push) Successful in 1s
Build and conditionally push docker image / docker-vars (push) Successful in 2s
Build and conditionally push docker image / Build and conditionally push docker image (SHAIRPORT_SYNC_BRANCH=.
, ./docker/classic/Dockerfile, classic) (push) Failing after 31m52s
Build and conditionally push docker image / Build and conditionally push docker image (SHAIRPORT_SYNC_BRANCH=.
NQPTP_BRANCH=${{ needs.docker-vars.outputs.nqptp_branch }}
, ./docker/Dockerfile, main) (push) Failing after 31m49s
Streams AirPlay audio to OpenHome/Songcast receivers as OHU unicast PCM (16/24-bit). Sends are paced on the PTP master clock so receivers slave to the AirPlay group clock through their buffer-fill servo; MediaLatency carries the phase, matching the wire behaviour of Linn's own sender (zero flags and timestamps). delay() reports the newest frame's playtime lead so shairport feeds a receiver latency ahead. Handles Join, Listen, Leave and Resend with a frame history, and forwards track metadata and metatext from the metadata hub. With -r <name>, ohm_upnp controls the receiver over UPnP: discovered by friendly name via SSDP at time of use, woken, switched to its Songcast source and pointed at this sender when a session starts; volume follows the AirPlay slider capped at the device's VolumeLimit; standby follows some minutes after the session ends.
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
/*
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* OpenHome receiver control for the ohm audio backend.
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*
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* This file is part of Shairport Sync.
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* Copyright (c) Nils Schneider 2026
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <stddef.h>
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/* XML-escape src into dst (NUL-terminated). Returns chars written (excluding NUL). */
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size_t ohm_xml_escape(char *dst, size_t dst_cap, const char *src);
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/* The backend declares volume as attenuation -OHM_UPNP_VOLUME_RANGE_CDB..0
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* (dB * 100); shairport stretches the AirPlay slider over exactly this range. */
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#define OHM_UPNP_VOLUME_RANGE_CDB 6000
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typedef struct {
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const char *receiver_name; /* friendly name to match; NULL disables the module */
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const char *interface_ip;
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const char *display_name;
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int standby_minutes; /* 0 = never */
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int ohu_port;
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} ohm_upnp_config_t;
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/* Strings are copied. */
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void ohm_upnp_configure(const ohm_upnp_config_t *config);
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int ohm_upnp_enabled(void);
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/* Callback side: cheap, thread-safe, never block. */
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void ohm_upnp_session_begin(void);
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void ohm_upnp_session_end(void);
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void ohm_upnp_set_volume(long vol_cdb); /* dB * 100, <= 0 */
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/* Does the network work (SSDP discovery, SOAP); call periodically from one
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* thread. */
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void ohm_upnp_tick(void);
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void ohm_upnp_deinit(void);
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