[pulseaudio-discuss] [PATCH 2/2] alsa-ucm: Add the ability to set modargs from UCM config
arun at accosted.net
arun at accosted.net
Tue May 3 12:56:52 UTC 2016
From: Arun Raghavan <git at arunraghavan.net>
This adds mechanism to use a custom UCM value on verbs and modifiers to
allow providing sink/source module arguments that are
PulseAudio-speicific, such as mmap/tsched mode and ignore_dB.
---
src/modules/alsa/alsa-mixer.c | 9 +++++++
src/modules/alsa/alsa-mixer.h | 11 +++++++++
src/modules/alsa/alsa-ucm.c | 41 +++++++++++++++++++++++++++----
src/modules/alsa/alsa-ucm.h | 4 +++
src/modules/alsa/module-alsa-card.c | 49 +++++++++++++++++++++++++++++++------
5 files changed, 101 insertions(+), 13 deletions(-)
diff --git a/src/modules/alsa/alsa-mixer.c b/src/modules/alsa/alsa-mixer.c
index 3dbf6b1..5edb1bd 100644
--- a/src/modules/alsa/alsa-mixer.c
+++ b/src/modules/alsa/alsa-mixer.c
@@ -3440,6 +3440,15 @@ static void mapping_free(pa_alsa_mapping *m) {
pa_assert(!m->input_pcm);
pa_assert(!m->output_pcm);
+ if (m->sink_arguments) {
+ pa_xfree(m->sink_arguments);
+ pa_modargs_free(m->sink_modargs);
+ }
+ if (m->source_arguments) {
+ pa_xfree(m->source_arguments);
+ pa_modargs_free(m->source_modargs);
+ }
+
pa_alsa_ucm_mapping_context_free(&m->ucm_context);
pa_xfree(m);
diff --git a/src/modules/alsa/alsa-mixer.h b/src/modules/alsa/alsa-mixer.h
index 4ebf192..4aec5a5 100644
--- a/src/modules/alsa/alsa-mixer.h
+++ b/src/modules/alsa/alsa-mixer.h
@@ -29,6 +29,7 @@
#include <pulse/volume.h>
#include <pulsecore/llist.h>
+#include <pulsecore/modargs.h>
#include <pulsecore/rtpoll.h>
typedef struct pa_alsa_fdlist pa_alsa_fdlist;
@@ -282,6 +283,16 @@ struct pa_alsa_mapping {
pa_sink *sink;
pa_source *source;
+ /* Module arguments from config, overriden by config/command line module
+ * arguments */
+ char *sink_arguments;
+ char *source_arguments;
+
+ /* Parsed modargs, merged with the card module arguments. If null,
+ * signifies that card modargs should directly be used. */
+ pa_modargs *sink_modargs;
+ pa_modargs *source_modargs;
+
/* ucm device context*/
pa_alsa_ucm_mapping_context ucm_context;
};
diff --git a/src/modules/alsa/alsa-ucm.c b/src/modules/alsa/alsa-ucm.c
index 85b0913..458fe36 100644
--- a/src/modules/alsa/alsa-ucm.c
+++ b/src/modules/alsa/alsa-ucm.c
@@ -103,6 +103,8 @@ static struct ucm_items item[] = {
{"TQ", PA_ALSA_PROP_UCM_QOS},
{"JackControl", PA_ALSA_PROP_UCM_JACK_CONTROL},
{"JackHWMute", PA_ALSA_PROP_UCM_JACK_HW_MUTE},
+ {"PulseAudioSinkModargs", PA_ALSA_PROP_UCM_SINK_MODARGS},
+ {"PulseAudioSourceModargs", PA_ALSA_PROP_UCM_SOURCE_MODARGS},
{NULL, NULL},
};
@@ -1253,6 +1255,7 @@ static int ucm_create_mapping_direction(
pa_alsa_profile_set *ps,
pa_alsa_profile *p,
pa_alsa_ucm_device *device,
+ pa_alsa_ucm_verb *verb,
const char *verb_name,
const char *device_name,
const char *device_str,
@@ -1260,6 +1263,7 @@ static int ucm_create_mapping_direction(
pa_alsa_mapping *m;
char *mapping_name;
+ const char *value;
unsigned priority, rate, channels;
mapping_name = pa_sprintf_malloc("Mapping %s: %s: %s", verb_name, device_str, is_sink ? "sink" : "source");
@@ -1290,6 +1294,16 @@ static int ucm_create_mapping_direction(
if (rate)
m->sample_spec.rate = rate;
pa_channel_map_init_extend(&m->channel_map, channels, PA_CHANNEL_MAP_ALSA);
+
+ if (is_sink) {
+ value = pa_proplist_gets(verb->proplist, PA_ALSA_PROP_UCM_SINK_MODARGS);
+ if (value)
+ m->sink_arguments = pa_xstrdup(value);
+ } else {
+ value = pa_proplist_gets(verb->proplist, PA_ALSA_PROP_UCM_SOURCE_MODARGS);
+ if (value)
+ m->source_arguments = pa_xstrdup(value);
+ }
}
/* mapping priority is the highest one of ucm devices */
@@ -1310,6 +1324,7 @@ static int ucm_create_mapping_for_modifier(
pa_alsa_profile_set *ps,
pa_alsa_profile *p,
pa_alsa_ucm_modifier *modifier,
+ pa_alsa_ucm_verb *verb,
const char *verb_name,
const char *mod_name,
const char *device_str,
@@ -1317,6 +1332,7 @@ static int ucm_create_mapping_for_modifier(
pa_alsa_mapping *m;
char *mapping_name;
+ const char *value;
mapping_name = pa_sprintf_malloc("Mapping %s: %s: %s", verb_name, device_str, is_sink ? "sink" : "source");
@@ -1342,6 +1358,20 @@ static int ucm_create_mapping_for_modifier(
m->priority = 0;
ucm_add_mapping(p, m);
+
+ if (is_sink) {
+ value = pa_proplist_gets(modifier->proplist, PA_ALSA_PROP_UCM_SINK_MODARGS);
+ if (!value)
+ value = pa_proplist_gets(verb->proplist, PA_ALSA_PROP_UCM_SINK_MODARGS);
+ if (value)
+ m->sink_arguments = pa_xstrdup(value);
+ } else {
+ value = pa_proplist_gets(modifier->proplist, PA_ALSA_PROP_UCM_SOURCE_MODARGS);
+ if (!value)
+ value = pa_proplist_gets(verb->proplist, PA_ALSA_PROP_UCM_SOURCE_MODARGS);
+ if (value)
+ m->source_arguments = pa_xstrdup(value);
+ }
} else if (!m->ucm_context.ucm_modifiers) /* share pcm with device */
m->ucm_context.ucm_modifiers = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
@@ -1355,6 +1385,7 @@ static int ucm_create_mapping(
pa_alsa_profile_set *ps,
pa_alsa_profile *p,
pa_alsa_ucm_device *device,
+ pa_alsa_ucm_verb *verb,
const char *verb_name,
const char *device_name,
const char *sink,
@@ -1368,9 +1399,9 @@ static int ucm_create_mapping(
}
if (sink)
- ret = ucm_create_mapping_direction(ucm, ps, p, device, verb_name, device_name, sink, true);
+ ret = ucm_create_mapping_direction(ucm, ps, p, device, verb, verb_name, device_name, sink, true);
if (ret == 0 && source)
- ret = ucm_create_mapping_direction(ucm, ps, p, device, verb_name, device_name, source, false);
+ ret = ucm_create_mapping_direction(ucm, ps, p, device, verb, verb_name, device_name, source, false);
return ret;
}
@@ -1475,7 +1506,7 @@ static int ucm_create_profile(
sink = pa_proplist_gets(dev->proplist, PA_ALSA_PROP_UCM_SINK);
source = pa_proplist_gets(dev->proplist, PA_ALSA_PROP_UCM_SOURCE);
- ucm_create_mapping(ucm, ps, p, dev, verb_name, name, sink, source);
+ ucm_create_mapping(ucm, ps, p, dev, verb, verb_name, name, sink, source);
jack = ucm_get_jack(ucm, dev);
device_set_jack(dev, jack);
@@ -1521,9 +1552,9 @@ static int ucm_create_profile(
source = pa_proplist_gets(mod->proplist, PA_ALSA_PROP_UCM_SOURCE);
if (sink)
- ucm_create_mapping_for_modifier(ucm, ps, p, mod, verb_name, name, sink, true);
+ ucm_create_mapping_for_modifier(ucm, ps, p, mod, verb, verb_name, name, sink, true);
else if (source)
- ucm_create_mapping_for_modifier(ucm, ps, p, mod, verb_name, name, source, false);
+ ucm_create_mapping_for_modifier(ucm, ps, p, mod, verb, verb_name, name, source, false);
}
pa_alsa_profile_dump(p);
diff --git a/src/modules/alsa/alsa-ucm.h b/src/modules/alsa/alsa-ucm.h
index f566574..165c68f 100644
--- a/src/modules/alsa/alsa-ucm.h
+++ b/src/modules/alsa/alsa-ucm.h
@@ -81,6 +81,10 @@ typedef void snd_use_case_mgr_t;
/** For devices: Quality of Service */
#define PA_ALSA_PROP_UCM_QOS "alsa.ucm.qos"
+/** For verbs/devices/modifiers: Passthrough module arguments for the corresponding Playback/CapturePCM */
+#define PA_ALSA_PROP_UCM_SINK_MODARGS "alsa.ucm.sink_arguments"
+#define PA_ALSA_PROP_UCM_SOURCE_MODARGS "alsa.ucm.source_arguments"
+
/** For devices: The modifier (if any) that this device corresponds to */
#define PA_ALSA_PROP_UCM_MODIFIER "alsa.ucm.modifier"
diff --git a/src/modules/alsa/module-alsa-card.c b/src/modules/alsa/module-alsa-card.c
index b743943..ce660df 100644
--- a/src/modules/alsa/module-alsa-card.c
+++ b/src/modules/alsa/module-alsa-card.c
@@ -249,7 +249,7 @@ static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
PA_IDXSET_FOREACH(am, nd->profile->output_mappings, idx) {
if (!am->sink)
- am->sink = pa_alsa_sink_new(c->module, u->modargs, __FILE__, c, am);
+ am->sink = pa_alsa_sink_new(c->module, am->sink_modargs ? am->sink_modargs : u->modargs, __FILE__, c, am);
if (sink_inputs && am->sink) {
pa_sink_move_all_finish(am->sink, sink_inputs, false);
@@ -261,7 +261,7 @@ static int card_set_profile(pa_card *c, pa_card_profile *new_profile) {
PA_IDXSET_FOREACH(am, nd->profile->input_mappings, idx) {
if (!am->source)
- am->source = pa_alsa_source_new(c->module, u->modargs, __FILE__, c, am);
+ am->source = pa_alsa_source_new(c->module, am->source_modargs ? am->source_modargs : u->modargs, __FILE__, c, am);
if (source_outputs && am->source) {
pa_source_move_all_finish(am->source, source_outputs, false);
@@ -279,11 +279,26 @@ finish:
return ret;
}
+static pa_modargs* prepare_modargs(const char *module, const char *config) {
+ pa_modargs *ma;
+
+ /* It's easier to re-parse the module arguments than to do a deep modargs copy */
+ ma = pa_modargs_new(module, valid_modargs);
+ if (!ma)
+ return NULL;
+
+ if (pa_modargs_append(ma, config, valid_modargs) < 0)
+ pa_log_error("Error parsing modargs from configuration");
+
+ return ma;
+}
+
static void init_profile(struct userdata *u) {
uint32_t idx;
pa_alsa_mapping *am;
struct profile_data *d;
pa_alsa_ucm_config *ucm = &u->ucm;
+ pa_modargs *modargs;
pa_assert(u);
@@ -297,13 +312,31 @@ static void init_profile(struct userdata *u) {
}
}
- if (d->profile && d->profile->output_mappings)
- PA_IDXSET_FOREACH(am, d->profile->output_mappings, idx)
- am->sink = pa_alsa_sink_new(u->module, u->modargs, __FILE__, u->card, am);
+ modargs = u->modargs;
+
+ if (d->profile && d->profile->output_mappings) {
+ PA_IDXSET_FOREACH(am, d->profile->output_mappings, idx) {
+ if (am->sink_arguments) {
+ am->sink_modargs = prepare_modargs(u->module->argument, am->sink_arguments);
+ pa_assert(am->sink_modargs);
+ modargs = am->sink_modargs;
+ }
- if (d->profile && d->profile->input_mappings)
- PA_IDXSET_FOREACH(am, d->profile->input_mappings, idx)
- am->source = pa_alsa_source_new(u->module, u->modargs, __FILE__, u->card, am);
+ am->sink = pa_alsa_sink_new(u->module, modargs, __FILE__, u->card, am);
+ }
+ }
+
+ if (d->profile && d->profile->input_mappings) {
+ PA_IDXSET_FOREACH(am, d->profile->input_mappings, idx) {
+ if (am->source_arguments) {
+ am->source_modargs = prepare_modargs(u->module->argument, am->source_arguments);
+ pa_assert(am->source_modargs);
+ modargs = am->source_modargs;
+ }
+
+ am->source = pa_alsa_source_new(u->module, modargs, __FILE__, u->card, am);
+ }
+ }
}
static pa_available_t calc_port_state(pa_device_port *p, struct userdata *u) {
--
2.5.5
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