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impl-port: add port.group property

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Can be used to group ports together. Mostly because they are all from
the same stream and split into multiple ports by audioconvert/adapter.

Also useful for the alsa sequence to group client ports together.

Also interesting when pw-filter would be able to handle streams in the
future to find out what ports belong to what streams.
This commit is contained in:
Wim Taymans 2024-06-24 12:34:38 +02:00
parent 54c3fa06ed
commit 9d1d1fcbef
13 changed files with 62 additions and 23 deletions
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4
spa/plugins/alsa/alsa-acp-device.c
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@ -12,6 +12,7 @@
#include <alsa/asoundlib.h>
#include <spa/node/node.h>
#include <spa/node/keys.h>
#include <spa/utils/type.h>
#include <spa/utils/keys.h>
#include <spa/utils/names.h>
@ -150,7 +151,7 @@ static int emit_node(struct impl *this, struct acp_device *dev)
info.change_mask = SPA_DEVICE_OBJECT_CHANGE_MASK_PROPS;
items = alloca((dev->props.n_items + 8) * sizeof(*items));
items = alloca((dev->props.n_items + 9) * sizeof(*items));
n_items = 0;
snprintf(card_index, sizeof(card_index), "%d", card->index);
@ -174,6 +175,7 @@ static int emit_node(struct impl *this, struct acp_device *dev)
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_OPEN_UCM, "true");
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_PCM_CARD, card_index);
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_PCM_STREAM, stream);
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_PORT_GROUP, stream);
snprintf(channels, sizeof(channels), "%d", dev->format.channels);
items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_AUDIO_CHANNELS, channels);