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pulse: parse and fill up the array of formats

Browse source 
A sink and source can have an array of pa_format_info structures
that contain the possible formats of the device. Parse them from
the EnumFormat and return them when introspecting.
This commit is contained in:
Wim Taymans 2020-09-17 16:34:18 +02:00
parent 8406ad8a4e
commit 023281fd0b
6 changed files with 333 additions and 180 deletions
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99
pipewire-pulseaudio/src/channelmap.c
View file

@ -847,3 +847,102 @@ pa_channel_position_mask_t pa_channel_map_mask(const pa_channel_map *map) {
return r;
}
static const uint32_t audio_channels[] = {
[PA_CHANNEL_POSITION_MONO] = SPA_AUDIO_CHANNEL_MONO,
[PA_CHANNEL_POSITION_FRONT_LEFT] = SPA_AUDIO_CHANNEL_FL,
[PA_CHANNEL_POSITION_FRONT_RIGHT] = SPA_AUDIO_CHANNEL_FR,
[PA_CHANNEL_POSITION_FRONT_CENTER] = SPA_AUDIO_CHANNEL_FC,
[PA_CHANNEL_POSITION_REAR_CENTER] = SPA_AUDIO_CHANNEL_RC,
[PA_CHANNEL_POSITION_REAR_LEFT] = SPA_AUDIO_CHANNEL_RL,
[PA_CHANNEL_POSITION_REAR_RIGHT] = SPA_AUDIO_CHANNEL_RR,
[PA_CHANNEL_POSITION_LFE] = SPA_AUDIO_CHANNEL_LFE,
[PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SPA_AUDIO_CHANNEL_FLC,
[PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SPA_AUDIO_CHANNEL_FRC,
[PA_CHANNEL_POSITION_SIDE_LEFT] = SPA_AUDIO_CHANNEL_SL,
[PA_CHANNEL_POSITION_SIDE_RIGHT] = SPA_AUDIO_CHANNEL_SR,
[PA_CHANNEL_POSITION_AUX0] = SPA_AUDIO_CHANNEL_CUSTOM_START + 1,
[PA_CHANNEL_POSITION_AUX1] = SPA_AUDIO_CHANNEL_CUSTOM_START + 2,
[PA_CHANNEL_POSITION_AUX2] = SPA_AUDIO_CHANNEL_CUSTOM_START + 3,
[PA_CHANNEL_POSITION_AUX3] = SPA_AUDIO_CHANNEL_CUSTOM_START + 4,
[PA_CHANNEL_POSITION_AUX4] = SPA_AUDIO_CHANNEL_CUSTOM_START + 5,
[PA_CHANNEL_POSITION_AUX5] = SPA_AUDIO_CHANNEL_CUSTOM_START + 6,
[PA_CHANNEL_POSITION_AUX6] = SPA_AUDIO_CHANNEL_CUSTOM_START + 7,
[PA_CHANNEL_POSITION_AUX7] = SPA_AUDIO_CHANNEL_CUSTOM_START + 8,
[PA_CHANNEL_POSITION_AUX8] = SPA_AUDIO_CHANNEL_CUSTOM_START + 9,
[PA_CHANNEL_POSITION_AUX9] = SPA_AUDIO_CHANNEL_CUSTOM_START + 10,
[PA_CHANNEL_POSITION_AUX10] = SPA_AUDIO_CHANNEL_CUSTOM_START + 11,
[PA_CHANNEL_POSITION_AUX11] = SPA_AUDIO_CHANNEL_CUSTOM_START + 12,
[PA_CHANNEL_POSITION_AUX12] = SPA_AUDIO_CHANNEL_CUSTOM_START + 13,
[PA_CHANNEL_POSITION_AUX13] = SPA_AUDIO_CHANNEL_CUSTOM_START + 14,
[PA_CHANNEL_POSITION_AUX14] = SPA_AUDIO_CHANNEL_CUSTOM_START + 15,
[PA_CHANNEL_POSITION_AUX15] = SPA_AUDIO_CHANNEL_CUSTOM_START + 16,
[PA_CHANNEL_POSITION_AUX16] = SPA_AUDIO_CHANNEL_CUSTOM_START + 17,
[PA_CHANNEL_POSITION_AUX17] = SPA_AUDIO_CHANNEL_CUSTOM_START + 18,
[PA_CHANNEL_POSITION_AUX18] = SPA_AUDIO_CHANNEL_CUSTOM_START + 19,
[PA_CHANNEL_POSITION_AUX19] = SPA_AUDIO_CHANNEL_CUSTOM_START + 20,
[PA_CHANNEL_POSITION_AUX20] = SPA_AUDIO_CHANNEL_CUSTOM_START + 21,
[PA_CHANNEL_POSITION_AUX21] = SPA_AUDIO_CHANNEL_CUSTOM_START + 22,
[PA_CHANNEL_POSITION_AUX22] = SPA_AUDIO_CHANNEL_CUSTOM_START + 23,
[PA_CHANNEL_POSITION_AUX23] = SPA_AUDIO_CHANNEL_CUSTOM_START + 24,
[PA_CHANNEL_POSITION_AUX24] = SPA_AUDIO_CHANNEL_CUSTOM_START + 25,
[PA_CHANNEL_POSITION_AUX25] = SPA_AUDIO_CHANNEL_CUSTOM_START + 26,
[PA_CHANNEL_POSITION_AUX26] = SPA_AUDIO_CHANNEL_CUSTOM_START + 27,
[PA_CHANNEL_POSITION_AUX27] = SPA_AUDIO_CHANNEL_CUSTOM_START + 28,
[PA_CHANNEL_POSITION_AUX28] = SPA_AUDIO_CHANNEL_CUSTOM_START + 29,
[PA_CHANNEL_POSITION_AUX29] = SPA_AUDIO_CHANNEL_CUSTOM_START + 30,
[PA_CHANNEL_POSITION_AUX30] = SPA_AUDIO_CHANNEL_CUSTOM_START + 31,
[PA_CHANNEL_POSITION_AUX31] = SPA_AUDIO_CHANNEL_CUSTOM_START + 32,
[PA_CHANNEL_POSITION_TOP_CENTER] = SPA_AUDIO_CHANNEL_TC,
[PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SPA_AUDIO_CHANNEL_TFL,
[PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SPA_AUDIO_CHANNEL_TFR,
[PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SPA_AUDIO_CHANNEL_TFC,
[PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SPA_AUDIO_CHANNEL_TRL,
[PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SPA_AUDIO_CHANNEL_TRR,
[PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SPA_AUDIO_CHANNEL_TRC,
};
static inline uint32_t channel_pa2id(pa_channel_position_t channel)
{
if (channel < 0 || (size_t)channel >= SPA_N_ELEMENTS(audio_channels))
return SPA_AUDIO_CHANNEL_UNKNOWN;
return audio_channels[channel];
}
static inline pa_channel_position_t channel_id2pa(uint32_t id, uint32_t *aux)
{
size_t i;
for (i = 0; i < SPA_N_ELEMENTS(audio_channels); i++) {
if (id == audio_channels[i])
return i;
}
return PA_CHANNEL_POSITION_AUX0 + (*aux)++;
}
void pw_channel_map_from_positions(pa_channel_map *map, uint32_t n_pos, const uint32_t *pos)
{
uint32_t i, aux = 0;
pa_channel_map_init(map);
map->channels = n_pos;
for (i = 0; i < n_pos; i++)
map->map[i] = channel_id2pa(pos[i], &aux);
if (!pa_channel_map_valid(map))
pa_channel_map_init_extend(map, n_pos, PA_CHANNEL_MAP_DEFAULT);
}
void pw_channel_map_to_positions(const pa_channel_map *map, uint32_t *pos)
{
int i;
for (i = 0; i < map->channels; i++)
pos[i] = channel_pa2id(map->map[i]);
}

19
pipewire-pulseaudio/src/context.c
View file

@ -940,6 +940,13 @@ struct global_info device_info = {
.sync = device_sync,
};
static void clear_node_formats(struct global *g)
{
pa_format_info *f;
pw_array_for_each(f, &g->node_info.formats)
pa_format_info_free(f);
}
static void node_event_info(void *object, const struct pw_node_info *info)
{
struct global *g = object;
@ -964,6 +971,9 @@ static void node_event_info(void *object, const struct pw_node_info *info)
continue;
switch (info->params[i].id) {
case SPA_PARAM_EnumFormat:
clear_node_formats(g);
/* fallthrough */
case SPA_PARAM_Props:
case SPA_PARAM_Format:
pw_device_enum_params((struct pw_device*)g->proxy,
@ -989,6 +999,13 @@ static void node_event_param(void *object, int seq,
if (!SPA_FLAG_IS_SET(g->node_info.flags, NODE_FLAG_DEVICE_VOLUME | NODE_FLAG_DEVICE_MUTE))
parse_props(g, param, false);
break;
case SPA_PARAM_EnumFormat:
{
pa_format_info *f = pa_format_info_from_param(param);
if (f)
pw_array_add_ptr(&g->node_info.formats, f);
break;
}
case SPA_PARAM_Format:
pa_format_parse_param(param, &g->node_info.sample_spec, &g->node_info.channel_map);
break;
@ -1006,6 +1023,7 @@ static const struct pw_node_events node_events = {
static void node_destroy(void *data)
{
struct global *global = data;
clear_node_formats(global);
if (global->info)
pw_node_info_free(global->info);
}
@ -1281,6 +1299,7 @@ static int set_mask(pa_context *c, struct global *g)
g->node_info.volume_step = 1.0f / (PA_VOLUME_NORM+1);
g->node_info.active_port = SPA_ID_INVALID;
g->node_info.available_port = SPA_PARAM_AVAILABILITY_unknown;
pw_array_init(&g->node_info.formats, sizeof(void*) * 4);
} else if (strcmp(g->type, PW_TYPE_INTERFACE_Port) == 0) {
if (g->props == NULL)
return 0;

164
pipewire-pulseaudio/src/core-format.c
View file

@ -26,118 +26,6 @@
#include "internal.h"
static const uint32_t audio_formats[] = {
[PA_SAMPLE_U8] = SPA_AUDIO_FORMAT_U8,
[PA_SAMPLE_ALAW] = SPA_AUDIO_FORMAT_UNKNOWN,
[PA_SAMPLE_ULAW] = SPA_AUDIO_FORMAT_UNKNOWN,
[PA_SAMPLE_S16NE] = SPA_AUDIO_FORMAT_S16,
[PA_SAMPLE_S16RE] = SPA_AUDIO_FORMAT_S16_OE,
[PA_SAMPLE_FLOAT32NE] = SPA_AUDIO_FORMAT_F32,
[PA_SAMPLE_FLOAT32RE] = SPA_AUDIO_FORMAT_F32_OE,
[PA_SAMPLE_S32NE] = SPA_AUDIO_FORMAT_S32,
[PA_SAMPLE_S32RE] = SPA_AUDIO_FORMAT_S32_OE,
[PA_SAMPLE_S24NE] = SPA_AUDIO_FORMAT_S24,
[PA_SAMPLE_S24RE] = SPA_AUDIO_FORMAT_S24_OE,
[PA_SAMPLE_S24_32NE] = SPA_AUDIO_FORMAT_S24_32,
[PA_SAMPLE_S24_32RE] = SPA_AUDIO_FORMAT_S24_32_OE,
};
static inline uint32_t format_pa2id(pa_sample_format_t format)
{
if (format < 0 || (size_t)format >= SPA_N_ELEMENTS(audio_formats))
return SPA_AUDIO_FORMAT_UNKNOWN;
return audio_formats[format];
}
static inline pa_sample_format_t format_id2pa(uint32_t id)
{
size_t i;
for (i = 0; i < SPA_N_ELEMENTS(audio_formats); i++) {
if (id == audio_formats[i])
return i;
}
return PA_SAMPLE_INVALID;
}
static const uint32_t audio_channels[] = {
[PA_CHANNEL_POSITION_MONO] = SPA_AUDIO_CHANNEL_MONO,
[PA_CHANNEL_POSITION_FRONT_LEFT] = SPA_AUDIO_CHANNEL_FL,
[PA_CHANNEL_POSITION_FRONT_RIGHT] = SPA_AUDIO_CHANNEL_FR,
[PA_CHANNEL_POSITION_FRONT_CENTER] = SPA_AUDIO_CHANNEL_FC,
[PA_CHANNEL_POSITION_REAR_CENTER] = SPA_AUDIO_CHANNEL_RC,
[PA_CHANNEL_POSITION_REAR_LEFT] = SPA_AUDIO_CHANNEL_RL,
[PA_CHANNEL_POSITION_REAR_RIGHT] = SPA_AUDIO_CHANNEL_RR,
[PA_CHANNEL_POSITION_LFE] = SPA_AUDIO_CHANNEL_LFE,
[PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SPA_AUDIO_CHANNEL_FLC,
[PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SPA_AUDIO_CHANNEL_FRC,
[PA_CHANNEL_POSITION_SIDE_LEFT] = SPA_AUDIO_CHANNEL_SL,
[PA_CHANNEL_POSITION_SIDE_RIGHT] = SPA_AUDIO_CHANNEL_SR,
[PA_CHANNEL_POSITION_AUX0] = SPA_AUDIO_CHANNEL_CUSTOM_START + 1,
[PA_CHANNEL_POSITION_AUX1] = SPA_AUDIO_CHANNEL_CUSTOM_START + 2,
[PA_CHANNEL_POSITION_AUX2] = SPA_AUDIO_CHANNEL_CUSTOM_START + 3,
[PA_CHANNEL_POSITION_AUX3] = SPA_AUDIO_CHANNEL_CUSTOM_START + 4,
[PA_CHANNEL_POSITION_AUX4] = SPA_AUDIO_CHANNEL_CUSTOM_START + 5,
[PA_CHANNEL_POSITION_AUX5] = SPA_AUDIO_CHANNEL_CUSTOM_START + 6,
[PA_CHANNEL_POSITION_AUX6] = SPA_AUDIO_CHANNEL_CUSTOM_START + 7,
[PA_CHANNEL_POSITION_AUX7] = SPA_AUDIO_CHANNEL_CUSTOM_START + 8,
[PA_CHANNEL_POSITION_AUX8] = SPA_AUDIO_CHANNEL_CUSTOM_START + 9,
[PA_CHANNEL_POSITION_AUX9] = SPA_AUDIO_CHANNEL_CUSTOM_START + 10,
[PA_CHANNEL_POSITION_AUX10] = SPA_AUDIO_CHANNEL_CUSTOM_START + 11,
[PA_CHANNEL_POSITION_AUX11] = SPA_AUDIO_CHANNEL_CUSTOM_START + 12,
[PA_CHANNEL_POSITION_AUX12] = SPA_AUDIO_CHANNEL_CUSTOM_START + 13,
[PA_CHANNEL_POSITION_AUX13] = SPA_AUDIO_CHANNEL_CUSTOM_START + 14,
[PA_CHANNEL_POSITION_AUX14] = SPA_AUDIO_CHANNEL_CUSTOM_START + 15,
[PA_CHANNEL_POSITION_AUX15] = SPA_AUDIO_CHANNEL_CUSTOM_START + 16,
[PA_CHANNEL_POSITION_AUX16] = SPA_AUDIO_CHANNEL_CUSTOM_START + 17,
[PA_CHANNEL_POSITION_AUX17] = SPA_AUDIO_CHANNEL_CUSTOM_START + 18,
[PA_CHANNEL_POSITION_AUX18] = SPA_AUDIO_CHANNEL_CUSTOM_START + 19,
[PA_CHANNEL_POSITION_AUX19] = SPA_AUDIO_CHANNEL_CUSTOM_START + 20,
[PA_CHANNEL_POSITION_AUX20] = SPA_AUDIO_CHANNEL_CUSTOM_START + 21,
[PA_CHANNEL_POSITION_AUX21] = SPA_AUDIO_CHANNEL_CUSTOM_START + 22,
[PA_CHANNEL_POSITION_AUX22] = SPA_AUDIO_CHANNEL_CUSTOM_START + 23,
[PA_CHANNEL_POSITION_AUX23] = SPA_AUDIO_CHANNEL_CUSTOM_START + 24,
[PA_CHANNEL_POSITION_AUX24] = SPA_AUDIO_CHANNEL_CUSTOM_START + 25,
[PA_CHANNEL_POSITION_AUX25] = SPA_AUDIO_CHANNEL_CUSTOM_START + 26,
[PA_CHANNEL_POSITION_AUX26] = SPA_AUDIO_CHANNEL_CUSTOM_START + 27,
[PA_CHANNEL_POSITION_AUX27] = SPA_AUDIO_CHANNEL_CUSTOM_START + 28,
[PA_CHANNEL_POSITION_AUX28] = SPA_AUDIO_CHANNEL_CUSTOM_START + 29,
[PA_CHANNEL_POSITION_AUX29] = SPA_AUDIO_CHANNEL_CUSTOM_START + 30,
[PA_CHANNEL_POSITION_AUX30] = SPA_AUDIO_CHANNEL_CUSTOM_START + 31,
[PA_CHANNEL_POSITION_AUX31] = SPA_AUDIO_CHANNEL_CUSTOM_START + 32,
[PA_CHANNEL_POSITION_TOP_CENTER] = SPA_AUDIO_CHANNEL_TC,
[PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SPA_AUDIO_CHANNEL_TFL,
[PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SPA_AUDIO_CHANNEL_TFR,
[PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SPA_AUDIO_CHANNEL_TFC,
[PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SPA_AUDIO_CHANNEL_TRL,
[PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SPA_AUDIO_CHANNEL_TRR,
[PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SPA_AUDIO_CHANNEL_TRC,
};
static inline uint32_t channel_pa2id(pa_channel_position_t channel)
{
if (channel < 0 || (size_t)channel >= SPA_N_ELEMENTS(audio_channels))
return SPA_AUDIO_CHANNEL_UNKNOWN;
return audio_channels[channel];
}
static inline pa_channel_position_t channel_id2pa(uint32_t id, uint32_t *aux)
{
size_t i;
for (i = 0; i < SPA_N_ELEMENTS(audio_channels); i++) {
if (id == audio_channels[i])
return i;
}
return PA_CHANNEL_POSITION_AUX0 + (*aux)++;
}
SPA_EXPORT
int pa_format_info_get_sample_format(const pa_format_info *f, pa_sample_format_t *sf) {
int r;
@ -358,55 +246,3 @@ int pa_format_info_to_sample_spec_fake(const pa_format_info *f, pa_sample_spec *
return 0;
}
int pa_format_parse_param(const struct spa_pod *param, pa_sample_spec *spec, pa_channel_map *map)
{
struct spa_audio_info info = { 0 };
uint32_t i, aux;
if (param == NULL)
return -EINVAL;
spa_format_parse(param, &info.media_type, &info.media_subtype);
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_raw ||
spa_format_audio_raw_parse(param, &info.info.raw) < 0 ||
!SPA_AUDIO_FORMAT_IS_INTERLEAVED(info.info.raw.format)) {
return -ENOTSUP;
}
spec->format = format_id2pa(info.info.raw.format);
if (spec->format == PA_SAMPLE_INVALID)
return -ENOTSUP;
spec->rate = info.info.raw.rate;
spec->channels = info.info.raw.channels;
aux = 0;
pa_channel_map_init(map);
map->channels = info.info.raw.channels;
for (i = 0; i < info.info.raw.channels; i++)
map->map[i] = channel_id2pa(info.info.raw.position[i], &aux);
if (!pa_channel_map_valid(map))
pa_channel_map_init_extend(map, info.info.raw.channels, PA_CHANNEL_MAP_DEFAULT);
return 0;
}
const struct spa_pod *pa_format_build_param(struct spa_pod_builder *b,
uint32_t id, pa_sample_spec *spec, pa_channel_map *map)
{
struct spa_audio_info_raw info;
info = SPA_AUDIO_INFO_RAW_INIT( .format = format_pa2id(spec->format),
.channels = spec->channels,
.rate = spec->rate);
if (map) {
int i;
for (i = 0; i < map->channels; i++)
info.position[i] = channel_pa2id(map->map[i]);
}
return spa_format_audio_raw_build(b, id, &info);
}

205
pipewire-pulseaudio/src/format.c
View file

@ -36,6 +36,39 @@
static int pa_format_info_prop_compatible(const char *one, const char *two);
static const uint32_t audio_formats[] = {
[PA_SAMPLE_U8] = SPA_AUDIO_FORMAT_U8,
[PA_SAMPLE_ALAW] = SPA_AUDIO_FORMAT_UNKNOWN,
[PA_SAMPLE_ULAW] = SPA_AUDIO_FORMAT_UNKNOWN,
[PA_SAMPLE_S16NE] = SPA_AUDIO_FORMAT_S16,
[PA_SAMPLE_S16RE] = SPA_AUDIO_FORMAT_S16_OE,
[PA_SAMPLE_FLOAT32NE] = SPA_AUDIO_FORMAT_F32,
[PA_SAMPLE_FLOAT32RE] = SPA_AUDIO_FORMAT_F32_OE,
[PA_SAMPLE_S32NE] = SPA_AUDIO_FORMAT_S32,
[PA_SAMPLE_S32RE] = SPA_AUDIO_FORMAT_S32_OE,
[PA_SAMPLE_S24NE] = SPA_AUDIO_FORMAT_S24,
[PA_SAMPLE_S24RE] = SPA_AUDIO_FORMAT_S24_OE,
[PA_SAMPLE_S24_32NE] = SPA_AUDIO_FORMAT_S24_32,
[PA_SAMPLE_S24_32RE] = SPA_AUDIO_FORMAT_S24_32_OE,
};
static inline uint32_t format_pa2id(pa_sample_format_t format)
{
if (format < 0 || (size_t)format >= SPA_N_ELEMENTS(audio_formats))
return SPA_AUDIO_FORMAT_UNKNOWN;
return audio_formats[format];
}
static inline pa_sample_format_t format_id2pa(uint32_t id)
{
size_t i;
for (i = 0; i < SPA_N_ELEMENTS(audio_formats); i++) {
if (id == audio_formats[i])
return i;
}
return PA_SAMPLE_INVALID;
}
static const char* const _encoding_str_table[]= {
[PA_ENCODING_PCM] = "pcm",
[PA_ENCODING_AC3_IEC61937] = "ac3-iec61937",
@ -705,3 +738,175 @@ out:
return ret;
}
static void format_info_fill_int(pa_format_info *f, const struct spa_pod *val, const char *key)
{
const struct spa_pod *vals;
int *int_vals;
uint32_t *uvals, i, n_vals, choice;
vals = spa_pod_get_values(val, &n_vals, &choice);
uvals = SPA_POD_BODY(vals);
int_vals = alloca(n_vals * sizeof(int));
for (i = 0; i < n_vals; i++)
int_vals[i] = uvals[i];
if (n_vals == 1)
choice = SPA_CHOICE_None;
switch (choice) {
case SPA_CHOICE_None:
if (n_vals > 0)
pa_format_info_set_prop_int(f,
key, int_vals[0]);
break;
case SPA_CHOICE_Enum:
if (n_vals > 1)
pa_format_info_set_prop_int_array(f,
key, &int_vals[1], n_vals-1);
break;
case SPA_CHOICE_Range:
if (n_vals > 2)
pa_format_info_set_prop_int_range(f,
key, int_vals[1], int_vals[2]);
break;
}
}
static void format_info_fill_format(pa_format_info *f, const struct spa_pod *val, const char *key)
{
const struct spa_pod *vals;
const char **svals;
uint32_t *uvals, i, j, n_vals, choice;
vals = spa_pod_get_values(val, &n_vals, &choice);
uvals = SPA_POD_BODY(vals);
svals = alloca(n_vals * sizeof(char *));
for (i = 0, j = 0; i < n_vals; i++) {
pa_sample_format_t fmt = format_id2pa(uvals[i]);
const char *s = pa_sample_format_to_string(fmt);
if (s)
svals[j++] = s;
}
n_vals = j;
if (n_vals == 1)
choice = SPA_CHOICE_None;
switch (choice) {
case SPA_CHOICE_None:
if (n_vals > 0)
pa_format_info_set_prop_string(f, key, svals[0]);
break;
case SPA_CHOICE_Enum:
if (n_vals > 1)
pa_format_info_set_prop_string_array(f,
key, &svals[1], n_vals-1);
break;
}
}
pa_format_info* pa_format_info_from_param(const struct spa_pod *param)
{
pa_format_info *f = pa_format_info_new();
struct spa_audio_info info = { 0 };
const struct spa_pod_object *obj;
const struct spa_pod_prop *p;
if (param == NULL ||
!spa_pod_is_object_type(param, SPA_TYPE_OBJECT_Format))
goto error;
spa_format_parse(param, &info.media_type, &info.media_subtype);
if (info.media_type != SPA_MEDIA_TYPE_audio)
goto error;
switch (info.media_subtype) {
case SPA_MEDIA_SUBTYPE_raw:
f->encoding = PA_ENCODING_PCM;
break;
default:
goto error;
}
obj = (const struct spa_pod_object*)param;
SPA_POD_OBJECT_FOREACH(obj, p) {
switch (p->key) {
case SPA_FORMAT_AUDIO_format:
format_info_fill_format(f, &p->value, PA_PROP_FORMAT_SAMPLE_FORMAT);
break;
case SPA_FORMAT_AUDIO_rate:
format_info_fill_int(f, &p->value, PA_PROP_FORMAT_RATE);
break;
case SPA_FORMAT_AUDIO_channels:
format_info_fill_int(f, &p->value, PA_PROP_FORMAT_CHANNELS);
break;
case SPA_FORMAT_AUDIO_position:
{
uint32_t pos[SPA_AUDIO_MAX_CHANNELS], n_pos;
n_pos = spa_pod_copy_array(&p->value, SPA_TYPE_Id, pos, SPA_AUDIO_MAX_CHANNELS);
if (n_pos > 0) {
char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_channel_map map;
pw_channel_map_from_positions(&map, n_pos, pos);
pa_channel_map_snprint(cm, sizeof(cm), &map);
pa_format_info_set_prop_string(f, PA_PROP_FORMAT_CHANNEL_MAP, cm);
}
break;
}
default:
break;
}
}
out:
return f;
error:
pa_format_info_free(f);
goto out;
}
int pa_format_parse_param(const struct spa_pod *param, pa_sample_spec *spec, pa_channel_map *map)
{
struct spa_audio_info info = { 0 };
if (param == NULL)
return -EINVAL;
spa_format_parse(param, &info.media_type, &info.media_subtype);
if (info.media_type != SPA_MEDIA_TYPE_audio ||
info.media_subtype != SPA_MEDIA_SUBTYPE_raw ||
spa_format_audio_raw_parse(param, &info.info.raw) < 0 ||
!SPA_AUDIO_FORMAT_IS_INTERLEAVED(info.info.raw.format)) {
return -ENOTSUP;
}
spec->format = format_id2pa(info.info.raw.format);
if (spec->format == PA_SAMPLE_INVALID)
return -ENOTSUP;
spec->rate = info.info.raw.rate;
spec->channels = info.info.raw.channels;
pw_channel_map_from_positions(map, info.info.raw.channels, info.info.raw.position);
return 0;
}
const struct spa_pod *pa_format_build_param(struct spa_pod_builder *b,
uint32_t id, pa_sample_spec *spec, pa_channel_map *map)
{
struct spa_audio_info_raw info;
info = SPA_AUDIO_INFO_RAW_INIT( .format = format_pa2id(spec->format),
.channels = spec->channels,
.rate = spec->rate);
if (map)
pw_channel_map_to_positions(map, info.position);
return spa_format_audio_raw_build(b, id, &info);
}

6
pipewire-pulseaudio/src/internal.h
View file

@ -301,6 +301,7 @@ struct global {
uint32_t active_port;
enum spa_param_availability available_port;
uint32_t device_index;
struct pw_array formats;
} node_info;
struct {
uint32_t node_id;
@ -516,11 +517,16 @@ int pa_metadata_update(struct global *global, uint32_t subject, const char *key,
int pa_metadata_get(struct global *global, uint32_t subject, const char *key,
const char **type, const char **value);
void pw_channel_map_from_positions(pa_channel_map *map, uint32_t n_pos, const uint32_t *pos);
void pw_channel_map_to_positions(const pa_channel_map *map, uint32_t *pos);
int pa_format_parse_param(const struct spa_pod *param,
pa_sample_spec *spec, pa_channel_map *map);
const struct spa_pod *pa_format_build_param(struct spa_pod_builder *b,
uint32_t id, pa_sample_spec *spec, pa_channel_map *map);
pa_format_info* pa_format_info_from_param(const struct spa_pod *param);
#ifdef __cplusplus
}
#endif

20
pipewire-pulseaudio/src/introspect.c
View file

@ -102,8 +102,6 @@ static int sink_callback(pa_context *c, struct global *g, struct sink_data *d)
uint32_t n, j;
char monitor_name[1024];
pa_sink_info i;
pa_format_info ii[1];
pa_format_info *ip[1];
spa_zero(i);
if (info->props && (str = spa_dict_lookup(info->props, PW_KEY_NODE_NAME)))
@ -184,14 +182,10 @@ static int sink_callback(pa_context *c, struct global *g, struct sink_data *d)
else
i.ports[j] = NULL;
}
i.n_formats = 1;
ii[0].encoding = PA_ENCODING_PCM;
ii[0].plist = pa_proplist_new();
ip[0] = ii;
i.formats = ip;
i.n_formats = pw_array_get_len(&g->node_info.formats, pa_format_info *);
i.formats = g->node_info.formats.data;
d->cb(c, &i, 0, d->userdata);
pa_proplist_free(i.proplist);
pa_proplist_free(ii[0].plist);
return 0;
}
@ -817,8 +811,6 @@ static int source_callback(pa_context *c, struct global *g, struct source_data *
const char *str;
uint32_t n, j;
pa_source_info i;
pa_format_info ii[1];
pa_format_info *ip[1];
enum pa_source_flags flags;
bool monitor;
@ -917,14 +909,10 @@ static int source_callback(pa_context *c, struct global *g, struct source_data *
else
i.ports[j] = NULL;
}
i.n_formats = 1;
ii[0].encoding = PA_ENCODING_PCM;
ii[0].plist = pa_proplist_new();
ip[0] = ii;
i.formats = ip;
i.n_formats = pw_array_get_len(&g->node_info.formats, pa_format_info *);
i.formats = g->node_info.formats.data;
d->cb(c, &i, 0, d->userdata);
pa_proplist_free(i.proplist);
pa_proplist_free(ii[0].plist);
return 0;
}