mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2026-06-13 14:33:03 -04:00
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/* AVB support */
|
|
/* SPDX-FileCopyrightText: Copyright © 2022 Wim Taymans */
|
|
/* SPDX-License-Identifier: MIT */
|
|
|
|
#ifndef AVB_STREAM_H
|
|
#define AVB_STREAM_H
|
|
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
#include <linux/if_packet.h>
|
|
#include <net/if.h>
|
|
|
|
#include <spa/utils/ringbuffer.h>
|
|
#include <spa/param/audio/format.h>
|
|
#include <spa/node/io.h>
|
|
|
|
#include "mc-recover.h"
|
|
#include "play-loop.h"
|
|
|
|
#include <pipewire/pipewire.h>
|
|
|
|
/* milan-avb: the talker ring must hold SEVERAL graph quanta so the burst-fill (one quantum/cycle) and the 125us flush-drain decouple; at 1<<16 the ring equalled ONE quantum so each cycle overwrote unread samples (~40 glitches/s). 1<<18 = 4 quanta. */
|
|
#define BUFFER_SIZE (1u<<18)
|
|
#define BUFFER_MASK (BUFFER_SIZE-1)
|
|
|
|
struct stream {
|
|
struct spa_list link;
|
|
|
|
struct server *server;
|
|
|
|
uint16_t direction;
|
|
uint16_t index;
|
|
uint64_t id;
|
|
|
|
struct pw_stream *stream;
|
|
struct spa_hook stream_listener;
|
|
|
|
uint64_t peer_id;
|
|
uint8_t addr[6];
|
|
int vlan_id;
|
|
|
|
struct spa_source *source;
|
|
struct spa_source *flush_timer;
|
|
uint64_t flush_last_ns;
|
|
|
|
/* milan-avb: self-driving timer (the node IS the graph DRIVER); a data-loop one-shot fills io_position->clock, re-arms to drive_next_time, and triggers one graph cycle (pipe-tunnel pattern) so the graph fill and AVTP egress share one clock (no follower-resampler FM). */
|
|
struct spa_source *drive_timer;
|
|
uint64_t drive_next_time;
|
|
bool driving;
|
|
uint64_t drive_phc_last;
|
|
uint64_t drive_mono_last;
|
|
double drive_ratio_ema; /* M2: EMA of PHC/MONOTONIC rate ratio */
|
|
|
|
/* M2: monotonic AVTP presentation-timestamp accumulator (PHC domain); advances by exactly pdu_period per PDU, slow-leaked toward the live PHC, so the listener's recovered media clock stays jitter-free (per-tick PHC reads inject interpolation jitter, audible FM). */
|
|
uint64_t tx_pts;
|
|
bool is_crf;
|
|
uint64_t next_txtime;
|
|
int prio;
|
|
int mtt;
|
|
int t_uncertainty;
|
|
uint32_t frames_per_pdu;
|
|
int ptime_tolerance;
|
|
|
|
uint8_t pdu[2048];
|
|
size_t hdr_size;
|
|
size_t payload_size;
|
|
size_t pdu_size;
|
|
int64_t pdu_period;
|
|
uint8_t pdu_seq;
|
|
uint8_t prev_seq;
|
|
uint8_t dbc;
|
|
|
|
struct iovec iov[3];
|
|
struct sockaddr_ll sock_addr;
|
|
struct msghdr msg;
|
|
char control[CMSG_SPACE(sizeof(uint64_t))];
|
|
struct cmsghdr *cmsg;
|
|
|
|
struct spa_ringbuffer ring;
|
|
void *buffer_data;
|
|
size_t buffer_size;
|
|
|
|
uint64_t format;
|
|
uint32_t stride;
|
|
struct spa_audio_info info;
|
|
|
|
/* milan-avb: AAF media-clock recovery (listener / STREAM_INPUT only); active only while the CLOCK_DOMAIN selects the AAF (INPUT_STREAM) source pointing at this stream; recovered from avtp_timestamp deltas (mc-recover.h). */
|
|
bool mc_aaf_active;
|
|
struct mc_recover mc;
|
|
|
|
/* milan-avb: actuator I/O areas (set via .io_changed); io_rate_match is the resampler knob, NULL unless the adapter inserted a resampler. */
|
|
struct spa_io_rate_match *io_rate_match;
|
|
struct spa_io_position *io_position;
|
|
|
|
/* milan-avb: previous 1 Hz sample for the local consume-rate log. */
|
|
uint64_t play_last_consume_tai;
|
|
uint64_t play_last_ticks;
|
|
uint64_t play_log_last_ns;
|
|
bool play_primed;
|
|
|
|
/* milan-avb: actuator state; servos the ring to play_target (play-loop.h). */
|
|
struct play_loop play;
|
|
int32_t play_target;
|
|
|
|
/* milan-avb: optional raw PCM dump for offline analysis (THDN, waveform). */
|
|
FILE *raw_dump_fp;
|
|
size_t raw_dump_bytes;
|
|
};
|
|
|
|
#include "msrp.h"
|
|
#include "mvrp.h"
|
|
#include "maap.h"
|
|
|
|
struct stream *server_create_stream(struct server *server, struct stream *stream,
|
|
enum spa_direction direction, uint16_t index);
|
|
|
|
void stream_destroy(struct stream *stream);
|
|
|
|
int stream_activate(struct stream *stream, uint16_t index, uint64_t now);
|
|
int stream_deactivate(struct stream *stream, uint64_t now);
|
|
int stream_activate_virtual(struct stream *stream, uint16_t index);
|
|
|
|
/* milan-avb: re-evaluate each input stream's media-clock recovery against the current CLOCK_DOMAIN selection; call after SET_CLOCK_SOURCE for on-the-fly clock-source switching. */
|
|
void avb_stream_update_clock_source(struct server *server);
|
|
|
|
#endif /* AVB_STREAM_H */
|