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alsa plugin: allow specifying a media.role on the virtual device name

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So that we can do:
  aplay -D pipewire:ROLE=Music music.wav
  aplay -D pipewire:ROLE=Notification notice.wav
This commit is contained in:
George Kiagiadakis 2021-06-22 13:23:22 +03:00 • committed by Wim Taymans
parent 575d4456e1
commit 5ee9133b60
2 changed files with 23 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

14
pipewire-alsa/alsa-plugins/pcm_pipewire.c
View file

@ -59,6 +59,7 @@ typedef struct {
char *node_name; char *node_name;
char *target; char *target;
char *role;
int fd; int fd;
int error; int error;
@ -509,6 +510,9 @@ static int snd_pcm_pipewire_prepare(snd_pcm_ioplug_t *io)
pw_properties_set(props, PW_KEY_MEDIA_CATEGORY, pw_properties_set(props, PW_KEY_MEDIA_CATEGORY,
io->stream == SND_PCM_STREAM_PLAYBACK ? io->stream == SND_PCM_STREAM_PLAYBACK ?
"Playback" : "Capture"); "Playback" : "Capture");
if (pw->role != NULL &&
pw_properties_get(props, PW_KEY_MEDIA_ROLE) == NULL)
pw_properties_setf(props, PW_KEY_MEDIA_ROLE, "%s", pw->role);
pw->stream = pw_stream_new(pw->core, pw->node_name, props); pw->stream = pw_stream_new(pw->core, pw->node_name, props);
if (pw->stream == NULL) if (pw->stream == NULL)
@ -958,6 +962,7 @@ static int snd_pcm_pipewire_open(snd_pcm_t **pcmp, const char *name,
const char *server_name, const char *server_name,
const char *playback_node, const char *playback_node,
const char *capture_node, const char *capture_node,
const char *role,
snd_pcm_stream_t stream, snd_pcm_stream_t stream,
int mode, int mode,
uint32_t flags, uint32_t flags,
@ -1013,6 +1018,8 @@ static int snd_pcm_pipewire_open(snd_pcm_t **pcmp, const char *name,
pw->target = capture_node ? strdup(capture_node) : NULL; pw->target = capture_node ? strdup(capture_node) : NULL;
} }
pw->role = (role && *role) ? strdup(role) : NULL;
pw->main_loop = pw_thread_loop_new("alsa-pipewire", NULL); pw->main_loop = pw_thread_loop_new("alsa-pipewire", NULL);
if (pw->main_loop == NULL) { if (pw->main_loop == NULL) {
err = -errno; err = -errno;
@ -1091,6 +1098,7 @@ SND_PCM_PLUGIN_DEFINE_FUNC(pipewire)
const char *server_name = NULL; const char *server_name = NULL;
const char *playback_node = NULL; const char *playback_node = NULL;
const char *capture_node = NULL; const char *capture_node = NULL;
const char *role = NULL;
snd_pcm_format_t format = SND_PCM_FORMAT_UNKNOWN; snd_pcm_format_t format = SND_PCM_FORMAT_UNKNOWN;
int rate = 0; int rate = 0;
int channels = 0; int channels = 0;
@ -1125,6 +1133,10 @@ SND_PCM_PLUGIN_DEFINE_FUNC(pipewire)
snd_config_get_string(n, &capture_node); snd_config_get_string(n, &capture_node);
continue; continue;
} }
if (spa_streq(id, "role")) {
snd_config_get_string(n, &role);
continue;
}
if (spa_streq(id, "exclusive")) { if (spa_streq(id, "exclusive")) {
if (snd_config_get_bool(n)) if (snd_config_get_bool(n))
flags |= PW_STREAM_FLAG_EXCLUSIVE; flags |= PW_STREAM_FLAG_EXCLUSIVE;
@ -1174,7 +1186,7 @@ SND_PCM_PLUGIN_DEFINE_FUNC(pipewire)
} }
err = snd_pcm_pipewire_open(pcmp, name, node_name, server_name, playback_node, err = snd_pcm_pipewire_open(pcmp, name, node_name, server_name, playback_node,
capture_node, stream, mode, flags, rate, format, capture_node, role, stream, mode, flags, rate, format,
channels, period_bytes); channels, period_bytes);
return err; return err;

11
pipewire-alsa/conf/50-pipewire.conf
View file

@ -3,9 +3,10 @@
defaults.pipewire.server "pipewire-0" defaults.pipewire.server "pipewire-0"
defaults.pipewire.node "-1" defaults.pipewire.node "-1"
defaults.pipewire.exclusive false defaults.pipewire.exclusive false
defaults.pipewire.role ""
pcm.pipewire { pcm.pipewire {
@args [ SERVER NODE EXCLUSIVE ] @args [ SERVER NODE EXCLUSIVE ROLE ]
@args.SERVER { @args.SERVER {
type string type string
default { default {
@ -27,6 +28,13 @@ pcm.pipewire {
name defaults.pipewire.exclusive name defaults.pipewire.exclusive
} }
} }
@args.ROLE {
type string
default {
@func refer
name defaults.pipewire.role
}
}
type pipewire type pipewire
@ -34,6 +42,7 @@ pcm.pipewire {
playback_node $NODE playback_node $NODE
capture_node $NODE capture_node $NODE
exclusive $EXCLUSIVE exclusive $EXCLUSIVE
role $ROLE
hint { hint {
show on show on
description "PipeWire Sound Server" description "PipeWire Sound Server"