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alsa: Share node/port info emission code between sink and source

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It's mostly the same, and it allows us to trigger this code in the
shared alsa-pcm.c code as well.
This commit is contained in:
Arun Raghavan 2023-11-07 13:01:52 -05:00
parent 72c9fba6d2
commit 6bae812ce0
4 changed files with 96 additions and 160 deletions
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73
spa/plugins/alsa/alsa-pcm.c
View file

@ -13,6 +13,8 @@
#include <spa/utils/result.h>
#include <spa/support/system.h>
#include <spa/utils/keys.h>
#include <spa/node/keys.h>
#include <spa/monitor/device.h>
#include "alsa-pcm.h"
@ -3226,3 +3228,74 @@ int spa_alsa_pause(struct state *state)
return 0;
}
void spa_alsa_emit_node_info(struct state *state, bool full)
{
uint64_t old = full ? state->info.change_mask : 0;
if (full)
state->info.change_mask = state->info_all;
if (state->info.change_mask) {
struct spa_dict_item items[7];
uint32_t i, n_items = 0;
char latency[64], period[64], nperiods[64], headroom[64];
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_API, "alsa");
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS,
state->stream == SND_PCM_STREAM_PLAYBACK ? "Audio/Sink" : "Audio/Source");
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_DRIVER, "true");
if (state->have_format) {
snprintf(latency, sizeof(latency), "%lu/%d", state->buffer_frames / 2, state->rate);
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_MAX_LATENCY, latency);
snprintf(period, sizeof(period), "%lu", state->period_frames);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-size", period);
snprintf(nperiods, sizeof(nperiods), "%lu",
state->period_frames != 0 ? state->buffer_frames / state->period_frames : 0);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-num", nperiods);
snprintf(headroom, sizeof(headroom), "%u", state->headroom);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.headroom", headroom);
} else {
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_MAX_LATENCY, NULL);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-size", NULL);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-num", NULL);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.headroom", NULL);
}
state->info.props = &SPA_DICT_INIT(items, n_items);
if (state->info.change_mask & SPA_NODE_CHANGE_MASK_PARAMS) {
for (i = 0; i < state->info.n_params; i++) {
if (state->params[i].user > 0) {
state->params[i].flags ^= SPA_PARAM_INFO_SERIAL;
state->params[i].user = 0;
}
}
}
spa_node_emit_info(&state->hooks, &state->info);
state->info.change_mask = old;
}
}
void spa_alsa_emit_port_info(struct state *state, bool full)
{
uint64_t old = full ? state->port_info.change_mask : 0;
if (full)
state->port_info.change_mask = state->port_info_all;
if (state->port_info.change_mask) {
uint32_t i;
if (state->port_info.change_mask & SPA_PORT_CHANGE_MASK_PARAMS) {
for (i = 0; i < state->port_info.n_params; i++) {
if (state->port_params[i].user > 0) {
state->port_params[i].flags ^= SPA_PARAM_INFO_SERIAL;
state->port_params[i].user = 0;
}
}
}
spa_node_emit_port_info(&state->hooks,
state->stream == SND_PCM_STREAM_PLAYBACK ? SPA_DIRECTION_INPUT : SPA_DIRECTION_OUTPUT,
0, &state->port_info);
state->port_info.change_mask = old;
}
}