mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-11-01 22:58:50 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

device: improve callbacks

Browse source 
Pass info structures to device callbacks to make it more extensible.
Also notify about the supported params on the device because we
can.
This commit is contained in:
Wim Taymans 2019-02-13 11:13:46 +01:00
parent 5de7898808
commit ac5ec9bbe2
7 changed files with 135 additions and 64 deletions
Download patch file Download diff file Expand all files Collapse all files

41
spa/plugins/alsa/alsa-device.c
View file

@ -107,27 +107,28 @@ 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];
const struct spa_handle_factory *factory;
char device_name[128];
struct spa_device_object_info info;
info = SPA_DEVICE_OBJECT_INFO_INIT();
info.type = SPA_TYPE_INTERFACE_Node;
if (snd_pcm_info_get_stream(pcminfo) == SND_PCM_STREAM_PLAYBACK)
info.factory = &spa_alsa_sink_factory;
else
info.factory = &spa_alsa_source_factory;
info.change_mask = SPA_DEVICE_OBJECT_CHANGE_MASK_INFO;
snprintf(device_name, 128, "%s,%d", this->props.device, snd_pcm_info_get_device(pcminfo));
items[0] = SPA_DICT_ITEM_INIT("alsa.device", device_name);
items[1] = SPA_DICT_ITEM_INIT("alsa.pcm.id", snd_pcm_info_get_id(pcminfo));
items[2] = SPA_DICT_ITEM_INIT("alsa.pcm.name", snd_pcm_info_get_name(pcminfo));
items[3] = SPA_DICT_ITEM_INIT("alsa.pcm.subname", snd_pcm_info_get_subdevice_name(pcminfo));
items[4] = SPA_DICT_ITEM_INIT("alsa.pcm.class", get_class(pcminfo));
items[5] = SPA_DICT_ITEM_INIT("alsa.pcm.subclass", get_subclass(pcminfo));
info.info = &SPA_DICT_INIT_ARRAY(items);
if (snd_pcm_info_get_stream(pcminfo) == SND_PCM_STREAM_PLAYBACK)
factory = &spa_alsa_sink_factory;
else
factory = &spa_alsa_source_factory;
this->callbacks->add(this->callbacks_data, id,
factory,
SPA_TYPE_INTERFACE_Node,
&SPA_DICT_INIT_ARRAY(items));
this->callbacks->object_info(this->callbacks_data, id, &info);
return 0;
}
@ -141,9 +142,9 @@ static int activate_profile(struct impl *this, snd_ctl_t *ctl_hndl, uint32_t id)
spa_log_debug(this->log, "profile %d", id);
this->profile = id;
if (this->callbacks && this->callbacks->remove) {
if (this->callbacks->object_info) {
for (i = 0; i < this->n_nodes; i++) {
this->callbacks->remove(this->callbacks_data, i);
this->callbacks->object_info(this->callbacks_data, i, NULL);
}
}
this->n_nodes = 0;
@ -170,7 +171,7 @@ static int activate_profile(struct impl *this, snd_ctl_t *ctl_hndl, uint32_t id)
if (err != -ENOENT)
spa_log_error(this->log, "error pcm info: %s", snd_strerror(err));
}
if (err >= 0 && this->callbacks->add)
if (err >= 0 && this->callbacks->object_info)
emit_node(this, pcminfo, i++);
snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_CAPTURE);
@ -178,7 +179,7 @@ static int activate_profile(struct impl *this, snd_ctl_t *ctl_hndl, uint32_t id)
if (err != -ENOENT)
spa_log_error(this->log, "error pcm info: %s", snd_strerror(err));
}
if (err >= 0 && this->callbacks->add)
if (err >= 0 && this->callbacks->object_info)
emit_node(this, pcminfo, i++);
}
this->n_nodes = i;
@ -212,6 +213,8 @@ static int emit_info(struct impl *this)
struct spa_dict_item items[10];
snd_ctl_t *ctl_hndl;
snd_ctl_card_info_t *info;
struct spa_device_info dinfo;
uint32_t params[] = { SPA_PARAM_EnumProfile, SPA_PARAM_Profile };
spa_log_info(this->log, "open card %s", this->props.device);
if ((err = snd_ctl_open(&ctl_hndl, this->props.device, 0)) < 0) {
@ -226,6 +229,9 @@ static int emit_info(struct impl *this)
goto exit;
}
dinfo = SPA_DEVICE_INFO_INIT();
dinfo.change_mask = SPA_DEVICE_CHANGE_MASK_INFO | SPA_DEVICE_CHANGE_MASK_PARAMS;
items[0] = SPA_DICT_ITEM_INIT("device.api", "alsa");
items[1] = SPA_DICT_ITEM_INIT("device.path", (char *)this->props.device);
items[2] = SPA_DICT_ITEM_INIT("device.nick", snd_ctl_card_info_get_id(info));
@ -236,9 +242,12 @@ static int emit_info(struct impl *this)
items[7] = SPA_DICT_ITEM_INIT("alsa.card.name", snd_ctl_card_info_get_name(info));
items[8] = SPA_DICT_ITEM_INIT("alsa.card.longname", snd_ctl_card_info_get_longname(info));
items[9] = SPA_DICT_ITEM_INIT("alsa.card.mixername", snd_ctl_card_info_get_mixername(info));
dinfo.info = &SPA_DICT_INIT(items, 10);
dinfo.n_params = SPA_N_ELEMENTS(params);
dinfo.params = params;
if (this->callbacks->info)
this->callbacks->info(this->callbacks_data, &SPA_DICT_INIT(items, 10));
this->callbacks->info(this->callbacks_data, &dinfo);
activate_profile(this, ctl_hndl, 0);