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alsa: add sync-id to properties

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This commit is contained in:
Wim Taymans 2019-09-05 13:18:56 +02:00
parent a232e67dd8
commit 88299ab225
2 changed files with 8 additions and 1 deletions
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1
spa/include/spa/utils/keys.h
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@ -59,6 +59,7 @@ extern "C" {
#define SPA_KEY_API_ALSA_PCM_SUBNAME "api.alsa.pcm.subname" /**< subdevice_name from pcm_info */
#define SPA_KEY_API_ALSA_PCM_CLASS "api.alsa.pcm.class" /**< class from pcm_info as string */
#define SPA_KEY_API_ALSA_PCM_SUBCLASS "api.alsa.pcm.subclass" /**< subclass from pcm_info as string */
#define SPA_KEY_API_ALSA_PCM_SYNC_ID "api.alsa.pcm.sync-id" /**< sync id */
/** keys for v4l2 api */
#define SPA_KEY_API_V4L2 "api.v4l2" /**< key for the v4l2 api */

8
spa/plugins/alsa/alsa-device.c
View file

@ -103,9 +103,11 @@ static const char *get_subclass(snd_pcm_info_t *pcminfo)
static int emit_node(struct impl *this, snd_pcm_info_t *pcminfo, uint32_t id)
{
struct spa_dict_item items[6];
struct spa_dict_item items[7];
char device_name[128];
char sync_name[128];
struct spa_device_object_info info;
snd_pcm_sync_id_t sync_id;
info = SPA_DEVICE_OBJECT_INFO_INIT();
info.type = SPA_TYPE_INTERFACE_Node;
@ -122,6 +124,10 @@ static int emit_node(struct impl *this, snd_pcm_info_t *pcminfo, uint32_t id)
items[3] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_PCM_SUBNAME, snd_pcm_info_get_subdevice_name(pcminfo));
items[4] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_PCM_CLASS, get_class(pcminfo));
items[5] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_PCM_SUBCLASS, get_subclass(pcminfo));
sync_id = snd_pcm_info_get_sync(pcminfo);
snprintf(sync_name, 128, "%08x:%08x:%08x:%08x",
sync_id.id32[0], sync_id.id32[1], sync_id.id32[2], sync_id.id32[3]);
items[6] = SPA_DICT_ITEM_INIT(SPA_KEY_API_ALSA_PCM_SYNC_ID, sync_name);
info.props = &SPA_DICT_INIT_ARRAY(items);
spa_device_emit_object_info(&this->hooks, id, &info);