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filter-chain: pass context to filter-graph

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Pass the IO_Position and IO_Latency to the filter graph in the
context.
This commit is contained in:
Wim Taymans 2026-06-30 12:52:32 +02:00
parent e42657f030
commit 187b9154a6
1 changed files with 44 additions and 2 deletions
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46
src/modules/module-filter-chain.c
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@ -18,6 +18,7 @@
#include <spa/utils/overflow.h>
#include <spa/param/audio/raw-json.h>
#include <spa/pod/dynamic.h>
#include <spa/node/type-info.h>
#include <spa/filter-graph/filter-graph.h>
#include <pipewire/impl.h>
@ -1278,6 +1279,7 @@ struct impl {
struct spa_latency_info latency[2];
struct spa_process_latency_info process_latency;
struct spa_io_latency io_latency;
};
static void capture_destroy(void *d)
@ -1483,15 +1485,23 @@ static void update_latencies(struct impl *impl, bool process)
}
static void param_latency_changed(struct impl *impl, const struct spa_pod *param,
enum spa_direction direction)
enum spa_direction direction, struct pw_stream *stream)
{
struct spa_latency_info latency;
struct pw_time time;
if (param == NULL || spa_latency_parse(param, &latency) < 0)
return;
impl->latency[latency.direction] = latency;
update_latency(impl, latency.direction, false);
pw_stream_get_time_n(stream, &time, sizeof(time));
impl->io_latency.rate = time.rate;
if (latency.direction == SPA_DIRECTION_OUTPUT)
impl->io_latency.capture_latency = time.delay;
else
impl->io_latency.playback_latency = time.delay;
}
static void param_process_latency_changed(struct impl *impl, const struct spa_pod *param,
@ -1546,18 +1556,44 @@ static void capture_state_changed(void *data, enum pw_stream_state old,
pw_log_info("module %p: error: %s", impl, error);
break;
case PW_STREAM_STATE_STREAMING:
{
struct pw_time time;
pw_stream_get_time_n(impl->capture, &time, sizeof(time));
impl->io_latency.rate = time.rate;
impl->io_latency.capture_latency = time.delay;
break;
}
default:
break;
}
return;
}
static void update_context(struct impl *impl)
{
uint32_t n_ctx = 0;
if (impl->position != NULL) {
impl->ctx[n_ctx].type = SPA_TYPE_INFO_IO_BASE "Position";
impl->ctx[n_ctx].data = impl->position;
impl->ctx[n_ctx].size = sizeof(*impl->position);
n_ctx++;
}
impl->ctx[n_ctx].type = SPA_TYPE_INFO_IO_BASE "Latency";
impl->ctx[n_ctx].data = &impl->io_latency;
impl->ctx[n_ctx].size = sizeof(impl->io_latency);
n_ctx++;
impl->n_ctx = n_ctx;
}
static void io_changed(void *data, uint32_t id, void *area, uint32_t size)
{
struct impl *impl = data;
switch (id) {
case SPA_IO_Position:
impl->position = area;
update_context(impl);
break;
default:
break;
@ -1590,7 +1626,7 @@ static void param_changed(struct impl *impl, uint32_t id, const struct spa_pod *
spa_filter_graph_set_props(impl->graph, direction, param);
break;
case SPA_PARAM_Latency:
param_latency_changed(impl, param, direction);
param_latency_changed(impl, param, direction, stream);
break;
case SPA_PARAM_ProcessLatency:
param_process_latency_changed(impl, param, direction);
@ -1641,6 +1677,7 @@ static void playback_state_changed(void *data, enum pw_stream_state old,
case PW_STREAM_STATE_STREAMING:
{
uint32_t target = impl->info.rate;
struct pw_time time;
if (target == 0)
target = impl->position ?
impl->position->clock.target_rate.denom : DEFAULT_RATE;
@ -1648,6 +1685,11 @@ static void playback_state_changed(void *data, enum pw_stream_state old,
res = -EINVAL;
goto error;
}
pw_stream_get_time_n(impl->playback, &time, sizeof(time));
impl->io_latency.rate = time.rate;
impl->io_latency.playback_latency = time.delay;
if (impl->rate != target) {
impl->rate = target;
deactivate_graph(impl);