Mike Brady
fd880056fb
Add three parameters to the backend play() function call -- (1) a flag indicating whether the samples are timed or not. If timed, (2) the timestamp and (3) the local time at which the first frame should be heard.
Update missing pipewire library message.
Makefile.am fix.
Update the SHM version and fix the SHM name so that it works with FreeBSD.
Remove redundant (?) AC_HEADER_STDC check.
Fix compilation and installation under FreeBSD -- changes to allow building in a separate directory broke the FreeBSD build process.
Add AC_CHECK_LIB for gcrypt in case PKG_CHECK_MODULES fails to find it.
Find gcrypt using pkg-config
Add code to detect when the RTSP channel goes idle for a period, and use it to reset clocks and timings, etc. so that SPS resumes correctly where the source has gone to sleep while playing a realtime stream and has subsequently woken up.
Don't exit if a UDP Clock Control packet is empty. Also check minimum packet size.
Remove some very experimental code which may cause memory and port leaks.
Strip file path from the filename used in debug messages, information messages, warnings and fatal error messages.
BB fix to Makefile.am -- overwriting the DBUS stuff with MPRIS definitions, duh.
Fix some problems building on FreeBSD and tidy up the use of the "sed" editor.
Fix some problems building on picore.
Fix an uninitialised variable
start using the "nqptp" SMI
60 lines
2.8 KiB
C
60 lines
2.8 KiB
C
/*
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* This file is part of the nqptp distribution (https://github.com/mikebrady/nqptp).
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* Copyright (c) 2021--2022 Mike Brady.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Commercial licensing is also available.
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*/
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#ifndef NQPTP_SHM_STRUCTURES_H
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#define NQPTP_SHM_STRUCTURES_H
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#define NQPTP_INTERFACE_NAME "/nqptp"
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#define NQPTP_SHM_STRUCTURES_VERSION 8
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#define NQPTP_CONTROL_PORT 9000
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// The control port expects a UDP packet with the first space-delimited string
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// being the name of the shared memory interface (SMI) to be used.
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// This allows client applications to have a dedicated named SMI interface with
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// a timing peer list independent of other clients.
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// The name given must be a valid SMI name and must contain no spaces.
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// If the named SMI interface doesn't exist it will be created by NQPTP.
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// The SMI name should be delimited by a space and followed by a command letter.
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// At present, the only command is "T", which must followed by nothing or by
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// a space and a space-delimited list of IPv4 or IPv6 numbers,
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// the whole not to exceed 4096 characters in total.
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// The IPs, if provided, will become the new list of timing peers, replacing any
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// previous list. If the master clock of the new list is the same as that of the old list,
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// the master clock is retained without resynchronisation; this means that non-master
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// devices can be added and removed without disturbing the SMI's existing master clock.
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// If no timing list is provided, the existing timing list is deleted.
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// (In future version of NQPTP the SMI interface may also be deleted at this point.)
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// SMI interfaces are not currently deleted or garbage collected.
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#include <inttypes.h>
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#include <pthread.h>
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struct shm_structure {
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pthread_mutex_t shm_mutex; // for safely accessing the structure
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uint16_t version; // check this is equal to NQPTP_SHM_STRUCTURES_VERSION
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uint64_t master_clock_id; // the current master clock
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char master_clock_ip[64]; // where it's coming from
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uint64_t local_time; // the time when the offset was calculated
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uint64_t local_to_master_time_offset; // add this to the local time to get master clock time
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uint64_t master_clock_start_time; // this is when the master clock became master
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};
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#endif
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