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alsa: add period-size, period-num and headroom in props

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Add the currently configured alsa hw_params in the properties for
easier access.
This commit is contained in:
Wim Taymans 2022-09-06 20:16:29 +02:00
parent 32421965c7
commit 5b2b93f915
2 changed files with 16 additions and 4 deletions
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10
spa/plugins/alsa/alsa-pcm-sink.c
View file

@ -56,9 +56,9 @@ static void emit_node_info(struct state *this, bool full)
if (full)
this->info.change_mask = this->info_all;
if (this->info.change_mask) {
struct spa_dict_item items[4];
struct spa_dict_item items[7];
uint32_t i, n_items = 0;
char latency[64];
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, "Audio/Sink");
@ -66,6 +66,12 @@ static void emit_node_info(struct state *this, bool full)
if (this->have_format) {
snprintf(latency, sizeof(latency), "%lu/%d", this->buffer_frames / 2, this->rate);
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_MAX_LATENCY, latency);
snprintf(period, sizeof(period), "%lu", this->period_frames);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-size", period);
snprintf(nperiods, sizeof(nperiods), "%lu", this->buffer_frames / this->period_frames);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-num", nperiods);
snprintf(headroom, sizeof(headroom), "%u", this->headroom);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.headroom", headroom);
}
this->info.props = &SPA_DICT_INIT(items, n_items);

10
spa/plugins/alsa/alsa-pcm-source.c
View file

@ -57,9 +57,9 @@ static void emit_node_info(struct state *this, bool full)
if (full)
this->info.change_mask = this->info_all;
if (this->info.change_mask) {
struct spa_dict_item items[4];
struct spa_dict_item items[7];
uint32_t i, n_items = 0;
char latency[64];
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, "Audio/Source");
@ -67,6 +67,12 @@ static void emit_node_info(struct state *this, bool full)
if (this->have_format) {
snprintf(latency, sizeof(latency), "%lu/%d", this->buffer_frames / 2, this->rate);
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_NODE_MAX_LATENCY, latency);
snprintf(period, sizeof(period), "%lu", this->period_frames);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-size", period);
snprintf(nperiods, sizeof(nperiods), "%lu", this->buffer_frames / this->period_frames);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.period-num", nperiods);
snprintf(headroom, sizeof(headroom), "%u", this->headroom);
items[n_items++] = SPA_DICT_ITEM_INIT("api.alsa.headroom", headroom);
}
this->info.props = &SPA_DICT_INIT(items, n_items);