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alsa: add option do use chmap from alsa, disable by default

Browse source 
This should be more in line with what PulseAudio does and so lead
to less surprises.

See #289
This commit is contained in:
Wim Taymans 2020-09-14 20:15:48 +02:00
parent 30dfe16c52
commit 2b0b44edc0
4 changed files with 39 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

26
spa/plugins/alsa/alsa-pcm-sink.c
View file

@ -51,6 +51,7 @@ static void reset_props(struct props *props)
strncpy(props->device, default_device, 64);
props->min_latency = default_min_latency;
props->max_latency = default_max_latency;
props->use_chmap = DEFAULT_USE_CHMAP;
}
static int impl_node_enum_params(void *object, int seq,
@ -115,6 +116,13 @@ static int impl_node_enum_params(void *object, int seq,
SPA_PROP_INFO_name, SPA_POD_String("The maximum latency"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->max_latency, 1, INT32_MAX));
break;
case 5:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_START_CUSTOM),
SPA_PROP_INFO_name, SPA_POD_String("Use the driver channelmap"),
SPA_PROP_INFO_type, SPA_POD_Bool(p->use_chmap));
break;
default:
return 0;
}
@ -128,11 +136,12 @@ static int impl_node_enum_params(void *object, int seq,
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_Props, id,
SPA_PROP_device, SPA_POD_Stringn(p->device, sizeof(p->device)),
SPA_PROP_deviceName, SPA_POD_Stringn(p->device_name, sizeof(p->device_name)),
SPA_PROP_cardName, SPA_POD_Stringn(p->card_name, sizeof(p->card_name)),
SPA_PROP_minLatency, SPA_POD_Int(p->min_latency),
SPA_PROP_maxLatency, SPA_POD_Int(p->max_latency));
SPA_PROP_device, SPA_POD_Stringn(p->device, sizeof(p->device)),
SPA_PROP_deviceName, SPA_POD_Stringn(p->device_name, sizeof(p->device_name)),
SPA_PROP_cardName, SPA_POD_Stringn(p->card_name, sizeof(p->card_name)),
SPA_PROP_minLatency, SPA_POD_Int(p->min_latency),
SPA_PROP_maxLatency, SPA_POD_Int(p->max_latency),
SPA_PROP_START_CUSTOM, SPA_POD_Bool(p->use_chmap));
break;
default:
return 0;
@ -210,9 +219,10 @@ static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
}
spa_pod_parse_object(param,
SPA_TYPE_OBJECT_Props, NULL,
SPA_PROP_device, SPA_POD_OPT_Stringn(p->device, sizeof(p->device)),
SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency),
SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency));
SPA_PROP_device, SPA_POD_OPT_Stringn(p->device, sizeof(p->device)),
SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency),
SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency),
SPA_PROP_START_CUSTOM, SPA_POD_OPT_Bool(&p->use_chmap));
}
else
return -ENOENT;

26
spa/plugins/alsa/alsa-pcm-source.c
View file

@ -51,6 +51,7 @@ static void reset_props(struct props *props)
strncpy(props->device, default_device, 64);
props->min_latency = default_min_latency;
props->max_latency = default_max_latency;
props->use_chmap = DEFAULT_USE_CHMAP;
}
static int impl_node_enum_params(void *object, int seq,
@ -115,6 +116,13 @@ static int impl_node_enum_params(void *object, int seq,
SPA_PROP_INFO_name, SPA_POD_String("The maximum latency"),
SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->max_latency, 1, INT32_MAX));
break;
case 5:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_PropInfo, id,
SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_START_CUSTOM),
SPA_PROP_INFO_name, SPA_POD_String("Use the driver channelmap"),
SPA_PROP_INFO_type, SPA_POD_Bool(p->use_chmap));
break;
default:
return 0;
}
@ -125,11 +133,12 @@ static int impl_node_enum_params(void *object, int seq,
case 0:
param = spa_pod_builder_add_object(&b,
SPA_TYPE_OBJECT_Props, id,
SPA_PROP_device, SPA_POD_Stringn(p->device, sizeof(p->device)),
SPA_PROP_deviceName, SPA_POD_Stringn(p->device_name, sizeof(p->device_name)),
SPA_PROP_cardName, SPA_POD_Stringn(p->card_name, sizeof(p->card_name)),
SPA_PROP_minLatency, SPA_POD_Int(p->min_latency),
SPA_PROP_maxLatency, SPA_POD_Int(p->max_latency));
SPA_PROP_device, SPA_POD_Stringn(p->device, sizeof(p->device)),
SPA_PROP_deviceName, SPA_POD_Stringn(p->device_name, sizeof(p->device_name)),
SPA_PROP_cardName, SPA_POD_Stringn(p->card_name, sizeof(p->card_name)),
SPA_PROP_minLatency, SPA_POD_Int(p->min_latency),
SPA_PROP_maxLatency, SPA_POD_Int(p->max_latency),
SPA_PROP_START_CUSTOM, SPA_POD_Bool(p->use_chmap));
break;
default:
return 0;
@ -210,9 +219,10 @@ static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
}
spa_pod_parse_object(param,
SPA_TYPE_OBJECT_Props, NULL,
SPA_PROP_device, SPA_POD_OPT_Stringn(p->device, sizeof(p->device)),
SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency),
SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency));
SPA_PROP_device, SPA_POD_OPT_Stringn(p->device, sizeof(p->device)),
SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency),
SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency),
SPA_PROP_START_CUSTOM, SPA_POD_OPT_Bool(&p->use_chmap));
break;
}
default:

2
spa/plugins/alsa/alsa-pcm.c
View file

@ -369,7 +369,7 @@ spa_alsa_enum_format(struct state *state, int seq, uint32_t start, uint32_t num,
spa_pod_builder_prop(&b, SPA_FORMAT_AUDIO_channels, 0);
if ((maps = snd_pcm_query_chmaps(hndl)) != NULL) {
if (state->props.use_chmap && (maps = snd_pcm_query_chmaps(hndl)) != NULL) {
uint32_t channel;
snd_pcm_chmap_t* map;

2
spa/plugins/alsa/alsa-pcm.h
View file

@ -50,6 +50,7 @@ extern "C" {
#define DEFAULT_RATE 48000u
#define DEFAULT_CHANNELS 2u
#define DEFAULT_USE_CHMAP false
struct props {
char device[64];
@ -57,6 +58,7 @@ struct props {
char card_name[128];
uint32_t min_latency;
uint32_t max_latency;
bool use_chmap;
};
#define MAX_BUFFERS 32