mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-02 09:01:50 -05:00
alsa: add on and off profiles
This commit is contained in:
Wim Taymans
parent
354bb042e2
commit
bf344a86e5
5 changed files with 199 additions and 46 deletions
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@ -37,6 +37,10 @@
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#include <spa/support/loop.h>
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#include <spa/support/plugin.h>
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#include <spa/monitor/device.h>
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#include <spa/param/param.h>
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#include <spa/pod/filter.h>
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#include <spa/pod/parser.h>
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#include <spa/debug/pod.h>
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#define NAME "alsa-device"
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@ -67,6 +71,7 @@ struct impl {
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void *callbacks_data;
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struct props props;
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uint32_t n_nodes;
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};
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static const char *get_class(snd_pcm_info_t *pcminfo)
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@ -97,7 +102,7 @@ static const char *get_subclass(snd_pcm_info_t *pcminfo)
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}
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}
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static int emit_node(struct impl *this, snd_pcm_info_t *pcminfo)
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static int emit_node(struct impl *this, snd_pcm_info_t *pcminfo, uint32_t id)
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{
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struct spa_dict_item items[6];
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const struct spa_handle_factory *factory;
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@ -117,7 +122,7 @@ static int emit_node(struct impl *this, snd_pcm_info_t *pcminfo)
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else
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factory = &spa_alsa_source_factory;
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this->callbacks->add(this->callbacks_data, 0,
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this->callbacks->add(this->callbacks_data, id,
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factory,
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SPA_TYPE_INTERFACE_Node,
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&SPA_DICT_INIT_ARRAY(items));
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@ -125,16 +130,87 @@ static int emit_node(struct impl *this, snd_pcm_info_t *pcminfo)
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return 0;
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}
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static int emit_info(struct impl *this)
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static int activate_profile(struct impl *this, snd_ctl_t *ctl_hndl, uint32_t id)
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{
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int err = 0, dev;
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uint32_t i;
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snd_pcm_info_t *pcminfo;
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spa_log_debug(this->log, "profile %d", id);
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if (this->callbacks && this->callbacks->remove) {
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for (i = 0; i < this->n_nodes; i++) {
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this->callbacks->remove(this->callbacks_data, i);
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}
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}
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this->n_nodes = 0;
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if (id == 1)
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return 0;
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snd_pcm_info_alloca(&pcminfo);
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dev = -1;
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i = 0;
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while (1) {
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if ((err = snd_ctl_pcm_next_device(ctl_hndl, &dev)) < 0) {
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spa_log_error(this->log, "error iterating devices: %s", snd_strerror(err));
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goto exit;
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}
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if (dev < 0)
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break;
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snd_pcm_info_set_device(pcminfo, dev);
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snd_pcm_info_set_subdevice(pcminfo, 0);
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snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK);
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if ((err = snd_ctl_pcm_info(ctl_hndl, pcminfo)) < 0) {
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if (err != -ENOENT)
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spa_log_error(this->log, "error pcm info: %s", snd_strerror(err));
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}
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if (err >= 0 && this->callbacks->add)
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emit_node(this, pcminfo, i++);
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snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_CAPTURE);
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if ((err = snd_ctl_pcm_info(ctl_hndl, pcminfo)) < 0) {
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if (err != -ENOENT)
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spa_log_error(this->log, "error pcm info: %s", snd_strerror(err));
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}
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if (err >= 0 && this->callbacks->add)
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emit_node(this, pcminfo, i++);
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}
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this->n_nodes = i;
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exit:
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return err;
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}
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static int set_profile(struct impl *this, uint32_t id)
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{
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snd_ctl_t *ctl_hndl;
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int err;
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spa_log_info(this->log, "open card %s", this->props.device);
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if ((err = snd_ctl_open(&ctl_hndl, this->props.device, 0)) < 0) {
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spa_log_error(this->log, "can't open control for card %s: %s",
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this->props.device, snd_strerror(err));
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return err;
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}
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err = activate_profile(this, ctl_hndl, id);
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spa_log_info(this->log, "close card %s", this->props.device);
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snd_ctl_close(ctl_hndl);
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return err;
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}
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static int emit_info(struct impl *this)
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{
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int err = 0;
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struct spa_dict_item items[10];
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snd_ctl_t *ctl_hndl;
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snd_ctl_card_info_t *info;
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snd_pcm_info_t *pcminfo;
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spa_log_info(this->log, "open card %s", this->props.device);
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if ((err = snd_ctl_open(&ctl_hndl, this->props.device, 0)) < 0) {
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spa_log_error(this->log, "can't open control for card %s: %s",
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this->props.device, snd_strerror(err));
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@ -161,35 +237,7 @@ static int emit_info(struct impl *this)
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if (this->callbacks->info)
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this->callbacks->info(this->callbacks_data, &SPA_DICT_INIT(items, 10));
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snd_pcm_info_alloca(&pcminfo);
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dev = -1;
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while (1) {
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if ((err = snd_ctl_pcm_next_device(ctl_hndl, &dev)) < 0) {
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spa_log_error(this->log, "error iterating devices: %s", snd_strerror(err));
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goto exit;
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}
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if (dev < 0)
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break;
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snd_pcm_info_set_device(pcminfo, dev);
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snd_pcm_info_set_subdevice(pcminfo, 0);
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snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_PLAYBACK);
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if ((err = snd_ctl_pcm_info(ctl_hndl, pcminfo)) < 0) {
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if (err != -ENOENT)
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spa_log_error(this->log, "error pcm info: %s", snd_strerror(err));
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}
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if (err >= 0 && this->callbacks->add)
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emit_node(this, pcminfo);
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snd_pcm_info_set_stream(pcminfo, SND_PCM_STREAM_CAPTURE);
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if ((err = snd_ctl_pcm_info(ctl_hndl, pcminfo)) < 0) {
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if (err != -ENOENT)
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spa_log_error(this->log, "error pcm info: %s", snd_strerror(err));
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}
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if (err >= 0 && this->callbacks->add)
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emit_node(this, pcminfo);
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}
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activate_profile(this, ctl_hndl, 0);
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exit:
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snd_ctl_close(ctl_hndl);
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@ -219,17 +267,117 @@ static int impl_set_callbacks(struct spa_device *device,
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static int impl_enum_params(struct spa_device *device,
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uint32_t id, uint32_t *index,
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const struct spa_pod *filter,
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struct spa_pod **param,
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struct spa_pod **result,
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struct spa_pod_builder *builder)
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{
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return -ENOTSUP;
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struct impl *this;
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struct spa_pod *param;
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struct spa_pod_builder b = { 0 };
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uint8_t buffer[1024];
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spa_return_val_if_fail(device != NULL, -EINVAL);
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spa_return_val_if_fail(index != NULL, -EINVAL);
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spa_return_val_if_fail(builder != NULL, -EINVAL);
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this = SPA_CONTAINER_OF(device, struct impl, device);
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next:
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spa_pod_builder_init(&b, buffer, sizeof(buffer));
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switch (id) {
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case SPA_PARAM_List:
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{
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uint32_t list[] = { SPA_PARAM_EnumProfile,
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SPA_PARAM_Profile };
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if (*index < SPA_N_ELEMENTS(list))
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param = spa_pod_builder_object(&b,
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SPA_TYPE_OBJECT_ParamList, id,
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SPA_PARAM_LIST_id, &SPA_POD_Id(list[*index]),
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0);
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else
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return 0;
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break;
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}
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case SPA_PARAM_EnumProfile:
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{
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switch (*index) {
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case 0:
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param = spa_pod_builder_object(&b,
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SPA_TYPE_OBJECT_ParamProfile, id,
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SPA_PARAM_PROFILE_id, &SPA_POD_Int(0),
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SPA_PARAM_PROFILE_name, &SPA_POD_Stringc("On"),
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0);
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break;
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case 1:
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param = spa_pod_builder_object(&b,
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SPA_TYPE_OBJECT_ParamProfile, id,
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SPA_PARAM_PROFILE_id, &SPA_POD_Int(1),
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SPA_PARAM_PROFILE_name, &SPA_POD_Stringc("Off"),
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0);
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break;
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default:
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return 0;
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}
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break;
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}
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case SPA_PARAM_Profile:
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{
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switch (*index) {
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case 0:
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param = spa_pod_builder_object(&b,
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SPA_TYPE_OBJECT_ParamProfile, id,
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SPA_PARAM_PROFILE_id, &SPA_POD_Int(0),
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0);
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break;
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default:
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return 0;
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}
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break;
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}
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default:
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return -ENOENT;
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}
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(*index)++;
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if (spa_pod_filter(builder, result, param, filter) < 0)
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goto next;
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return 1;
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}
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static int impl_set_param(struct spa_device *device,
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uint32_t id, uint32_t flags,
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const struct spa_pod *param)
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{
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return -ENOTSUP;
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struct impl *this;
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int res;
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spa_return_val_if_fail(device != NULL, -EINVAL);
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this = SPA_CONTAINER_OF(device, struct impl, device);
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switch (id) {
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case SPA_PARAM_Profile:
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{
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uint32_t id;
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if ((res = spa_pod_object_parse(param,
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":", SPA_PARAM_PROFILE_id, "i", &id,
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NULL)) < 0) {
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spa_log_warn(this->log, "can't parse profile");
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spa_debug_pod(0, NULL, param);
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return res;
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}
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set_profile(this, id);
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break;
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}
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default:
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return -ENOENT;
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}
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return 0;
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}
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static const struct spa_device impl_device = {
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