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spa: add some latency helpers

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Add more fields to the latency object.
Add methods to create, parse and process latency info.
This commit is contained in:
Wim Taymans 2021-05-24 18:01:19 +02:00
parent 0779862cda
commit b9b89b92b2
15 changed files with 245 additions and 145 deletions
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35
pipewire-jack/src/pipewire-jack.c
View file

@ -142,9 +142,7 @@ struct object {
struct port *port;
bool is_monitor;
struct object *node;
float latency_quantum[2];
uint32_t latency_min[2];
uint32_t latency_max[2];
struct spa_latency_info latency[2];
} port;
};
struct pw_proxy *proxy;
@ -2188,22 +2186,10 @@ static void port_param(void *object, int seq,
switch (id) {
case SPA_PARAM_Latency:
{
uint32_t direction;
float latency_quantum;
uint32_t latency_min, latency_max;
if (spa_pod_parse_object(param,
SPA_TYPE_OBJECT_ParamLatency, NULL,
SPA_PARAM_LATENCY_direction,SPA_POD_Id(&direction),
SPA_PARAM_LATENCY_quantum,SPA_POD_Float(&latency_quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(&latency_min),
SPA_PARAM_LATENCY_max, SPA_POD_Int(&latency_max)) < 0)
struct spa_latency_info info;
if (spa_latency_parse(param, &info) < 0)
return;
direction &= 1;
o->port.latency_quantum[direction] = latency_quantum;
o->port.latency_min[direction] = latency_min;
o->port.latency_max[direction] = latency_max;
o->port.latency[info.direction] = info;
break;
}
default:
@ -4422,8 +4408,9 @@ void jack_port_get_latency_range (jack_port_t *port, jack_latency_callback_mode_
{
struct object *o = (struct object *) port;
struct client *c;
jack_nframes_t nframes;
jack_nframes_t nframes, rate;
int direction;
struct spa_latency_info *info;
spa_return_if_fail(o != NULL);
c = o->client;
@ -4434,9 +4421,13 @@ void jack_port_get_latency_range (jack_port_t *port, jack_latency_callback_mode_
direction = SPA_DIRECTION_INPUT;
nframes = jack_get_buffer_size((jack_client_t*)c);
nframes *= o->port.latency_quantum[direction];
range->min = nframes + o->port.latency_min[direction];
range->max = nframes + o->port.latency_max[direction];
rate = jack_get_sample_rate((jack_client_t*)c);
info = &o->port.latency[direction];
range->min = (info->min_quantum * nframes) +
info->min_rate + (info->min_ns * rate) / SPA_NSEC_PER_SEC;
range->max = (info->max_quantum * nframes) +
info->max_rate + (info->max_ns * rate) / SPA_NSEC_PER_SEC;
}
SPA_EXPORT

117
spa/include/spa/param/latency-utils.h Normal file
View file

@ -0,0 +1,117 @@
/* Simple Plugin API
*
* Copyright © 2021 Wim Taymans
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef SPA_PARAM_LATENCY_UTILS_H
#define SPA_PARAM_LATENCY_UTILS_H
#ifdef __cplusplus
extern "C" {
#endif
#include <spa/pod/parser.h>
struct spa_latency_info {
enum spa_direction direction;
float min_quantum;
float max_quantum;
uint32_t min_rate;
uint32_t max_rate;
uint64_t min_ns;
uint64_t max_ns;
};
#define SPA_LATENCY_INFO(dir) (struct spa_latency_info) { .direction = (dir) }
static inline int
spa_latency_info_compare(const struct spa_latency_info *a, struct spa_latency_info *b)
{
if (a->min_quantum == b->min_quantum &&
a->max_quantum == b->max_quantum &&
a->min_rate == b->min_rate &&
a->max_rate == b->max_rate &&
a->min_ns == b->min_ns &&
a->max_ns == b->max_ns)
return 0;
return 1;
}
static inline int
spa_latency_info_combine(struct spa_latency_info *info, const struct spa_latency_info *other)
{
if (info->direction != other->direction)
return -EINVAL;
if (info->min_quantum == 0.0f || other->min_quantum < info->min_quantum)
info->min_quantum = other->min_quantum;
if (other->max_quantum > info->max_quantum)
info->max_quantum = other->max_quantum;
if (info->min_rate == 0U || other->min_rate < info->min_rate)
info->min_rate = other->min_rate;
if (other->max_rate > info->max_rate)
info->max_rate = other->max_rate;
if (info->min_ns == 0UL || other->min_ns < info->min_ns)
info->min_ns = other->min_ns;
if (other->max_ns > info->max_ns)
info->max_ns = other->max_ns;
return 0;
}
static inline int
spa_latency_parse(const struct spa_pod *latency, struct spa_latency_info *info)
{
int res;
spa_zero(*info);
if ((res = spa_pod_parse_object(latency,
SPA_TYPE_OBJECT_ParamLatency, NULL,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(&info->direction),
SPA_PARAM_LATENCY_minQuantum, SPA_POD_OPT_Float(&info->min_quantum),
SPA_PARAM_LATENCY_maxQuantum, SPA_POD_OPT_Float(&info->max_quantum),
SPA_PARAM_LATENCY_minRate, SPA_POD_OPT_Int(&info->min_rate),
SPA_PARAM_LATENCY_maxRate, SPA_POD_OPT_Int(&info->max_rate),
SPA_PARAM_LATENCY_minNs, SPA_POD_OPT_Long(&info->min_ns),
SPA_PARAM_LATENCY_maxNs, SPA_POD_OPT_Long(&info->max_ns))) < 0)
return res;
info->direction &= 1;
return 0;
}
static inline struct spa_pod *
spa_latency_build(struct spa_pod_builder *builder, uint32_t id, const struct spa_latency_info *info)
{
return spa_pod_builder_add_object(builder,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(info->direction),
SPA_PARAM_LATENCY_minQuantum, SPA_POD_Float(info->min_quantum),
SPA_PARAM_LATENCY_maxQuantum, SPA_POD_Float(info->max_quantum),
SPA_PARAM_LATENCY_minRate, SPA_POD_Int(info->min_rate),
SPA_PARAM_LATENCY_maxRate, SPA_POD_Int(info->max_rate),
SPA_PARAM_LATENCY_minNs, SPA_POD_Long(info->min_ns),
SPA_PARAM_LATENCY_maxNs, SPA_POD_Long(info->max_ns));
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_PARAM_LATENCY_UTILS_H */

9
spa/include/spa/param/param.h
View file

@ -177,9 +177,12 @@ enum spa_param_route {
enum spa_param_latency {
SPA_PARAM_LATENCY_START,
SPA_PARAM_LATENCY_direction, /**< direction, input/output (Id enum spa_direction) */
SPA_PARAM_LATENCY_quantum, /**< latency relative to quantum (Float) */
SPA_PARAM_LATENCY_min, /**< min latency (Int) relative to rate */
SPA_PARAM_LATENCY_max, /**< max latency (Int) relative to rate */
SPA_PARAM_LATENCY_minQuantum, /**< min latency relative to quantum (Float) */
SPA_PARAM_LATENCY_maxQuantum, /**< max latency relative to quantum (Float) */
SPA_PARAM_LATENCY_minRate, /**< min latency (Int) relative to rate */
SPA_PARAM_LATENCY_maxRate, /**< max latency (Int) relative to rate */
SPA_PARAM_LATENCY_minNs, /**< min latency (Long) in nanoseconds */
SPA_PARAM_LATENCY_maxNs, /**< max latency (Long) in nanoseconds */
};
/**

9
spa/include/spa/param/type-info.h
View file

@ -390,9 +390,12 @@ static const struct spa_type_info spa_type_profiler[] = {
static const struct spa_type_info spa_type_param_latency[] = {
{ SPA_PARAM_LATENCY_START, SPA_TYPE_Id, SPA_TYPE_INFO_PARAM_LATENCY_BASE, spa_type_param, },
{ SPA_PARAM_LATENCY_direction, SPA_TYPE_Id, SPA_TYPE_INFO_PARAM_LATENCY_BASE "direction", spa_type_direction, },
{ SPA_PARAM_LATENCY_quantum, SPA_TYPE_Float, SPA_TYPE_INFO_PARAM_LATENCY_BASE "quantum", NULL, },
{ SPA_PARAM_LATENCY_min, SPA_TYPE_Int, SPA_TYPE_INFO_PARAM_LATENCY_BASE "min", NULL, },
{ SPA_PARAM_LATENCY_max, SPA_TYPE_Int, SPA_TYPE_INFO_PARAM_LATENCY_BASE "max", NULL, },
{ SPA_PARAM_LATENCY_minQuantum, SPA_TYPE_Float, SPA_TYPE_INFO_PARAM_LATENCY_BASE "minQuantum", NULL, },
{ SPA_PARAM_LATENCY_maxQuantum, SPA_TYPE_Float, SPA_TYPE_INFO_PARAM_LATENCY_BASE "maxQuantum", NULL, },
{ SPA_PARAM_LATENCY_minRate, SPA_TYPE_Int, SPA_TYPE_INFO_PARAM_LATENCY_BASE "minRate", NULL, },
{ SPA_PARAM_LATENCY_maxRate, SPA_TYPE_Int, SPA_TYPE_INFO_PARAM_LATENCY_BASE "maxRate", NULL, },
{ SPA_PARAM_LATENCY_minNs, SPA_TYPE_Long, SPA_TYPE_INFO_PARAM_LATENCY_BASE "minNs", NULL, },
{ SPA_PARAM_LATENCY_maxNs, SPA_TYPE_Long, SPA_TYPE_INFO_PARAM_LATENCY_BASE "maxNs", NULL, },
{ 0, 0, NULL, NULL },
};

11
spa/plugins/alsa/alsa-pcm-sink.c
View file

@ -459,12 +459,7 @@ impl_node_port_enum_params(void *object, int seq,
case SPA_PARAM_Latency:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(this->latency_quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(this->latency),
SPA_PARAM_LATENCY_max, SPA_POD_Int(this->latency));
param = spa_latency_build(&b, id, &this->latency);
break;
default:
return 0;
@ -775,7 +770,9 @@ impl_init(const struct spa_handle_factory *factory,
spa_hook_list_init(&this->hooks);
this->stream = SND_PCM_STREAM_PLAYBACK;
this->latency_quantum = 1.0f;
this->latency = SPA_LATENCY_INFO(SPA_DIRECTION_INPUT);
this->latency.min_quantum = 1.0f;
this->latency.max_quantum = 1.0f;
this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
SPA_NODE_CHANGE_MASK_PROPS |

12
spa/plugins/alsa/alsa-pcm-source.c
View file

@ -457,12 +457,7 @@ impl_node_port_enum_params(void *object, int seq,
case SPA_PARAM_Latency:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(this->latency_quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(this->latency),
SPA_PARAM_LATENCY_max, SPA_POD_Int(this->latency));
param = spa_latency_build(&b, id, &this->latency);
break;
default:
return 0;
@ -794,8 +789,9 @@ impl_init(const struct spa_handle_factory *factory,
spa_hook_list_init(&this->hooks);
this->stream = SND_PCM_STREAM_CAPTURE;
this->latency_quantum = 1.0f;
this->latency = SPA_LATENCY_INFO(SPA_DIRECTION_OUTPUT);
this->latency.min_quantum = 1.0f;
this->latency.max_quantum = 1.0f;
this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
SPA_NODE_CHANGE_MASK_PROPS |

2
spa/plugins/alsa/alsa-pcm.c
View file

@ -630,7 +630,7 @@ int spa_alsa_set_format(struct state *state, struct spa_audio_info *fmt, uint32_
state->headroom = SPA_MIN(state->headroom, state->buffer_frames);
state->start_delay = state->default_start_delay;
state->latency = state->headroom;
state->latency.min_rate = state->latency.max_rate = state->headroom;
state->period_frames = period_size;
periods = state->buffer_frames / state->period_frames;

4
spa/plugins/alsa/alsa-pcm.h
View file

@ -45,6 +45,7 @@ extern "C" {
#include <spa/node/io.h>
#include <spa/debug/types.h>
#include <spa/param/param.h>
#include <spa/param/latency-utils.h>
#include <spa/param/audio/format-utils.h>
#include "dll.h"
@ -192,8 +193,7 @@ struct state {
struct spa_dll dll;
double max_error;
float latency_quantum;
uint32_t latency;
struct spa_latency_info latency;
};
int

13
spa/plugins/alsa/alsa-seq-bridge.c
View file

@ -36,6 +36,7 @@
#include <spa/utils/list.h>
#include <spa/monitor/device.h>
#include <spa/param/audio/format.h>
#include <spa/param/latency-utils.h>
#include <spa/pod/filter.h>
#define NAME "alsa-bridge"
@ -578,13 +579,13 @@ impl_node_port_enum_params(void *object, int seq,
case SPA_PARAM_Latency:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(1.0f),
SPA_PARAM_LATENCY_min, SPA_POD_Int(0),
SPA_PARAM_LATENCY_max, SPA_POD_Int(0));
{
struct spa_latency_info info = {
.direction = direction,
.min_quantum = 1.0f, .max_quantum = 1.0f };
param = spa_latency_build(&b, id, &info);
break;
}
default:
return 0;
}

28
spa/plugins/audioconvert/merger.c
View file

@ -40,6 +40,7 @@
#include <spa/node/keys.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/param.h>
#include <spa/param/latency-utils.h>
#include <spa/pod/filter.h>
#include <spa/debug/types.h>
#include <spa/debug/pod.h>
@ -176,9 +177,7 @@ struct impl {
uint32_t src_remap[SPA_AUDIO_MAX_CHANNELS];
uint32_t dst_remap[SPA_AUDIO_MAX_CHANNELS];
float latency_quantum[2];
uint32_t latency_min[2];
uint32_t latency_max[2];
struct spa_latency_info latency[2];
float empty[MAX_SAMPLES + MAX_ALIGN];
};
@ -814,12 +813,7 @@ impl_node_port_enum_params(void *object, int seq,
case SPA_PARAM_Latency:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(this->latency_quantum[direction]),
SPA_PARAM_LATENCY_min, SPA_POD_Int(this->latency_min[direction]),
SPA_PARAM_LATENCY_max, SPA_POD_Int(this->latency_max[direction]));
param = spa_latency_build(&b, id, &this->latency[direction]);
break;
default:
return 0;
@ -936,18 +930,16 @@ static int port_set_latency(void *object,
enum spa_direction other = SPA_DIRECTION_REVERSE(direction);
uint32_t i;
spa_log_debug(this->log, NAME " %p: set latency", this);
spa_log_info(this->log, NAME " %p: set latency", this);
if (latency == NULL) {
this->latency_quantum[other] = 0;
this->latency_min[other] = 0;
this->latency_max[other] = 0;
this->latency[other] = SPA_LATENCY_INFO(other);
} else {
if (spa_pod_parse_object(latency,
SPA_TYPE_OBJECT_ParamLatency, NULL,
SPA_PARAM_LATENCY_quantum,SPA_POD_Float(&this->latency_quantum[other]),
SPA_PARAM_LATENCY_min, SPA_POD_Int(&this->latency_min[other]),
SPA_PARAM_LATENCY_max, SPA_POD_Int(&this->latency_max[other])) < 0)
struct spa_latency_info info;
if (spa_latency_parse(latency, &info) < 0 ||
info.direction != other)
return -EINVAL;
this->latency[other] = info;
}
if (direction == SPA_DIRECTION_OUTPUT) {
for (i = 0; i < this->port_count; i++) {

28
spa/plugins/audioconvert/splitter.c
View file

@ -37,6 +37,7 @@
#include <spa/node/utils.h>
#include <spa/node/io.h>
#include <spa/param/audio/format-utils.h>
#include <spa/param/latency-utils.h>
#include <spa/param/param.h>
#include <spa/pod/filter.h>
#include <spa/debug/types.h>
@ -126,9 +127,7 @@ struct impl {
unsigned int is_passthrough:1;
unsigned int started:1;
float latency_quantum[2];
uint32_t latency_min[2];
uint32_t latency_max[2];
struct spa_latency_info latency[2];
uint32_t src_remap[SPA_AUDIO_MAX_CHANNELS];
uint32_t dst_remap[SPA_AUDIO_MAX_CHANNELS];
@ -572,12 +571,7 @@ impl_node_port_enum_params(void *object, int seq,
case SPA_PARAM_Latency:
switch (result.index) {
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, id,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(this->latency_quantum[direction]),
SPA_PARAM_LATENCY_min, SPA_POD_Int(this->latency_min[direction]),
SPA_PARAM_LATENCY_max, SPA_POD_Int(this->latency_max[direction]));
param = spa_latency_build(&b, id, &this->latency[direction]);
break;
default:
return 0;
@ -700,16 +694,13 @@ static int port_set_latency(void *object,
spa_log_debug(this->log, NAME " %p: set latency", this);
if (latency == NULL) {
this->latency_quantum[other] = 0;
this->latency_min[other] = 0;
this->latency_max[other] = 0;
this->latency[other] = SPA_LATENCY_INFO(other);
} else {
if (spa_pod_parse_object(latency,
SPA_TYPE_OBJECT_ParamLatency, NULL,
SPA_PARAM_LATENCY_quantum,SPA_POD_Float(&this->latency_quantum[other]),
SPA_PARAM_LATENCY_min, SPA_POD_Int(&this->latency_min[other]),
SPA_PARAM_LATENCY_max, SPA_POD_Int(&this->latency_max[other])) < 0)
struct spa_latency_info info;
if (spa_latency_parse(latency, &info) < 0 ||
info.direction != other)
return -EINVAL;
this->latency[other] = info;
}
if (direction == SPA_DIRECTION_INPUT) {
for (i = 0; i < this->port_count; i++) {
@ -1137,6 +1128,9 @@ impl_init(const struct spa_handle_factory *factory,
spa_hook_list_init(&this->hooks);
this->latency[SPA_DIRECTION_INPUT] = SPA_LATENCY_INFO(SPA_DIRECTION_INPUT);
this->latency[SPA_DIRECTION_OUTPUT] = SPA_LATENCY_INFO(SPA_DIRECTION_OUTPUT);
this->node.iface = SPA_INTERFACE_INIT(
SPA_TYPE_INTERFACE_Node,
SPA_VERSION_NODE,

20
src/pipewire/impl-link.c
View file

@ -637,6 +637,8 @@ static void input_remove(struct pw_impl_link *this, struct pw_impl_port *port)
spa_list_remove(&this->input_link);
pw_impl_port_emit_link_removed(this->input, this);
pw_impl_port_recalc_latency(this->input);
if ((res = pw_impl_port_use_buffers(port, mix, 0, NULL, 0)) < 0) {
pw_log_warn(NAME" %p: port %p clear error %s", this, port, spa_strerror(res));
}
@ -657,6 +659,8 @@ static void output_remove(struct pw_impl_link *this, struct pw_impl_port *port)
spa_list_remove(&this->output_link);
pw_impl_port_emit_link_removed(this->output, this);
pw_impl_port_recalc_latency(this->output);
/* we don't clear output buffers when the link goes away. They will get
* cleared when the node goes to suspend */
pw_impl_port_release_mix(port, mix);
@ -932,17 +936,6 @@ static bool pw_impl_node_can_reach(struct pw_impl_node *output, struct pw_impl_n
return false;
}
static void recalculate_latencies(struct impl *impl)
{
struct pw_impl_link *this = &impl->this;
/* from output port we get capture latency and propagate this
* on the input port */
pw_impl_port_recalc_latency(this->output);
/* from input port we get playback latency and propagate that
* on the output port */
pw_impl_port_recalc_latency(this->input);
}
static void try_link_controls(struct impl *impl, struct pw_impl_port *output, struct pw_impl_port *input)
{
struct pw_control *cin, *cout;
@ -1156,10 +1149,11 @@ struct pw_impl_link *pw_context_create_link(struct pw_context *context,
pw_impl_port_emit_link_added(output, this);
pw_impl_port_emit_link_added(input, this);
recalculate_latencies(impl);
try_link_controls(impl, output, input);
pw_impl_port_recalc_latency(this->output);
pw_impl_port_recalc_latency(this->input);
pw_impl_node_emit_peer_added(impl->onode, impl->inode);
return this;

82
src/pipewire/impl-port.c
View file

@ -25,6 +25,7 @@
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <float.h>
#include <spa/pod/parser.h>
#include <spa/param/audio/format-utils.h>
@ -355,24 +356,23 @@ static int process_latency_param(void *data, int seq,
uint32_t id, uint32_t index, uint32_t next, struct spa_pod *param)
{
struct pw_impl_port *this = data;
uint32_t direction;
struct pw_port_latency latency;
struct spa_latency_info latency;
if (id != SPA_PARAM_Latency)
return -EINVAL;
if (spa_pod_parse_object(param,
SPA_TYPE_OBJECT_ParamLatency, NULL,
SPA_PARAM_LATENCY_direction,SPA_POD_Id(&direction),
SPA_PARAM_LATENCY_quantum,SPA_POD_Float(&latency.quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(&latency.min),
SPA_PARAM_LATENCY_max, SPA_POD_Int(&latency.max)) < 0)
if (spa_latency_parse(param, &latency) < 0)
return 0;
if (direction != this->direction)
if (latency.direction != this->direction)
return 0;
pw_log_info("got latency %f %d %d", latency.quantum, latency.min, latency.max);
this->latency[direction] = latency;
pw_log_info("port %p: got %s latency %f-%f %d-%d %"PRIu64"-%"PRIu64, this,
pw_direction_as_string(this->direction),
latency.min_quantum, latency.max_quantum,
latency.min_rate, latency.max_rate,
latency.min_ns, latency.max_ns);
this->latency[this->direction] = latency;
return 0;
}
@ -515,6 +515,9 @@ struct pw_impl_port *pw_context_create_port(
pw_map_init(&this->mix_port_map, 64, 64);
this->latency[SPA_DIRECTION_INPUT] = SPA_LATENCY_INFO(SPA_DIRECTION_INPUT);
this->latency[SPA_DIRECTION_OUTPUT] = SPA_LATENCY_INFO(SPA_DIRECTION_OUTPUT);
if (info)
update_info(this, info);
@ -1288,55 +1291,66 @@ int pw_impl_port_for_each_link(struct pw_impl_port *port,
return res;
}
static void port_set_latency(struct pw_impl_port *port, struct pw_port_latency *latency)
static void port_set_latency(struct pw_impl_port *port, struct spa_latency_info *latency)
{
struct pw_port_latency *current = &port->latency[port->direction];
struct spa_latency_info *current = &port->latency[latency->direction];
struct spa_pod *param;
struct spa_pod_builder b = { 0 };
uint8_t buffer[1024];
if (current->quantum == latency->quantum &&
current->min == latency->min &&
current->max == latency->max)
if (spa_latency_info_compare(current, latency) == 0)
return;
*current = *latency;
pw_log_info("port set latency %d %d %f", latency->min, latency->max, latency->quantum);
pw_log_info("port %p: set %s latency %f-%f %d-%d %"PRIu64"-%"PRIu64, port,
pw_direction_as_string(latency->direction),
latency->min_quantum, latency->max_quantum,
latency->min_rate, latency->max_rate,
latency->min_ns, latency->max_ns);
spa_pod_builder_init(&b, buffer, sizeof(buffer));
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_ParamLatency, SPA_PARAM_Latency,
SPA_PARAM_LATENCY_direction, SPA_POD_Id(port->direction),
SPA_PARAM_LATENCY_quantum, SPA_POD_Float(latency->quantum),
SPA_PARAM_LATENCY_min, SPA_POD_Int(latency->min),
SPA_PARAM_LATENCY_max, SPA_POD_Int(latency->max));
param = spa_latency_build(&b, SPA_PARAM_Latency, latency);
pw_impl_port_set_param(port, SPA_PARAM_Latency, 0, param);
}
int pw_impl_port_recalc_latency(struct pw_impl_port *port)
{
struct pw_impl_link *l;
struct pw_port_latency latency = { .quantum = 0.0f, .min = UINT32_MAX, .max = 0 };
struct spa_latency_info latency;
struct pw_impl_port *other;
latency = SPA_LATENCY_INFO(SPA_DIRECTION_REVERSE(port->direction));
latency.min_quantum = FLT_MAX;
latency.min_rate = INT32_MAX;
latency.min_ns = INT64_MAX;
if (port->direction == PW_DIRECTION_OUTPUT) {
spa_list_for_each(l, &port->links, output_link) {
other = l->input;
latency.quantum = SPA_MAX(latency.quantum, other->latency[other->direction].quantum);
latency.min = SPA_MIN(latency.min, other->latency[other->direction].min);
latency.max = SPA_MAX(latency.max, other->latency[other->direction].max);
spa_latency_info_combine(&latency, &other->latency[other->direction]);
pw_log_info("port %p: peer %p: latency %f-%f %d-%d %"PRIu64"-%"PRIu64,
port, other,
latency.min_quantum, latency.max_quantum,
latency.min_rate, latency.max_rate,
latency.min_ns, latency.max_ns);
}
} else {
spa_list_for_each(l, &port->links, input_link) {
other = l->input;
latency.quantum = SPA_MAX(latency.quantum, other->latency[other->direction].quantum);
latency.min = SPA_MIN(latency.min, other->latency[other->direction].min);
latency.max = SPA_MAX(latency.max, other->latency[other->direction].max);
other = l->output;
spa_latency_info_combine(&latency, &other->latency[other->direction]);
pw_log_info("port %p: peer %p: latency %f-%f %d-%d %"PRIu64"-%"PRIu64,
port, other,
latency.min_quantum, latency.max_quantum,
latency.min_rate, latency.max_rate,
latency.min_ns, latency.max_ns);
}
}
if (latency.min == UINT32_MAX)
latency.min = 0;
if (latency.min_quantum == FLT_MAX)
latency.min_quantum = 0.0f;
if (latency.min_rate == INT32_MAX)
latency.min_rate = 0U;
if (latency.min_ns == INT64_MAX)
latency.min_ns = 0UL;
port_set_latency(port, &latency);
return 0;

9
src/pipewire/private.h
View file

@ -36,6 +36,7 @@ extern "C" {
#include <spa/support/plugin.h>
#include <spa/pod/builder.h>
#include <spa/param/latency-utils.h>
#include <spa/utils/result.h>
#include <spa/utils/type-info.h>
@ -686,12 +687,6 @@ struct pw_impl_node {
void *user_data; /**< extra user data */
};
struct pw_port_latency {
float quantum; /** quantum multiplier */
uint32_t min; /** min of all peers */
uint32_t max; /** max of all peers */
};
struct pw_impl_port_mix {
struct spa_list link;
struct spa_list rt_link;
@ -796,7 +791,7 @@ struct pw_impl_port {
} rt; /**< data only accessed from the data thread */
unsigned int added:1;
struct pw_port_latency latency[2]; /**< latencies */
struct spa_latency_info latency[2]; /**< latencies */
void *owner_data; /**< extra owner data */
void *user_data; /**< extra user data */

11
src/tools/pw-cat.c
View file

@ -45,6 +45,7 @@
#include <spa/utils/string.h>
#include <spa/utils/json.h>
#include <spa/debug/types.h>
#include <spa/debug/pod.h>
#include <pipewire/pipewire.h>
#include <pipewire/i18n.h>
@ -835,13 +836,15 @@ on_io_changed(void *userdata, uint32_t id, void *data, uint32_t size)
}
static void
on_param_changed(void *userdata, uint32_t id, const struct spa_pod *format)
on_param_changed(void *userdata, uint32_t id, const struct spa_pod *param)
{
struct data *data = userdata;
if (data->verbose)
printf("stream param change: id=%"PRIu32"\n",
id);
if (data->verbose) {
printf("stream param change: id=%"PRIu32"\n", id);
if (param != NULL)
spa_debug_pod(0, NULL, param);
}
}
static void on_process(void *userdata)