spa: make a function to make a channel short name

Make a function that can generate and parse a short name for
the positions that are not in the type list, like the AUX channels.
This commit is contained in:
Wim Taymans 2025-10-22 13:04:53 +02:00
parent 7177f8269d
commit 11f1298f53
16 changed files with 74 additions and 38 deletions

View file

@ -267,12 +267,34 @@ static const struct spa_type_info spa_type_audio_channel[] = {
SPA_API_AUDIO_RAW_TYPES uint32_t spa_type_audio_channel_from_short_name(const char *name)
{
return spa_type_from_short_name(name, spa_type_audio_channel, SPA_AUDIO_CHANNEL_UNKNOWN);
uint32_t res;
if (spa_strstartswith(name, "AUX")) {
if (spa_atou32(name+3, &res, 10) && res < 0x1000)
res = SPA_AUDIO_CHANNEL_AUX0 + res;
else
res = SPA_AUDIO_CHANNEL_UNKNOWN;
} else {
res = spa_type_from_short_name(name, spa_type_audio_channel, SPA_AUDIO_CHANNEL_UNKNOWN);
}
return res;
}
SPA_API_AUDIO_RAW_TYPES const char * spa_type_audio_channel_to_short_name(uint32_t type)
{
return spa_type_to_short_name(type, spa_type_audio_channel, "UNK");
}
SPA_API_AUDIO_RAW_TYPES const char * spa_type_audio_channel_make_short_name(uint32_t type,
char *buf, size_t size, const char *unknown)
{
if (SPA_AUDIO_CHANNEL_IS_AUX(type)) {
snprintf(buf, size, "AUX%u", type - SPA_AUDIO_CHANNEL_AUX0);
} else {
const char *str = spa_type_to_short_name(type, spa_type_audio_channel, NULL);
if (str == NULL)
return unknown;
snprintf(buf, size, "%.7s", str);
}
return buf;
}
#define SPA_TYPE_INFO_AudioVolumeRampScale SPA_TYPE_INFO_ENUM_BASE "AudioVolumeRampScale"
#define SPA_TYPE_INFO_AUDIO_VOLUME_RAMP_SCALE_BASE SPA_TYPE_INFO_AudioVolumeRampScale ":"

View file

@ -241,12 +241,13 @@ static int alsa_set_param(struct state *state, const char *k, const char *s)
static int position_to_string(struct channel_map *map, char *val, size_t len)
{
uint32_t i, o = 0;
char pos[8];
int r;
o += snprintf(val, len, "[ ");
for (i = 0; i < map->n_pos; i++) {
r = snprintf(val+o, len-o, "%s%s", i == 0 ? "" : ", ",
spa_debug_type_find_short_name(spa_type_audio_channel,
map->pos[i]));
spa_type_audio_channel_make_short_name(map->pos[i],
pos, sizeof(pos), "UNK"));
if (r < 0 || o + r >= len)
return -ENOSPC;
o += r;

View file

@ -424,7 +424,6 @@ static int init_port(struct impl *this, enum spa_direction direction, uint32_t p
uint32_t position, bool is_dsp, bool is_monitor, bool is_control)
{
struct port *port = GET_PORT(this, direction, port_id);
const char *name;
spa_assert(port_id < MAX_PORTS);
@ -439,8 +438,7 @@ static int init_port(struct impl *this, enum spa_direction direction, uint32_t p
port->latency[SPA_DIRECTION_INPUT] = SPA_LATENCY_INFO(SPA_DIRECTION_INPUT);
port->latency[SPA_DIRECTION_OUTPUT] = SPA_LATENCY_INFO(SPA_DIRECTION_OUTPUT);
name = spa_debug_type_find_short_name(spa_type_audio_channel, position);
snprintf(port->position, sizeof(port->position), "%s", name ? name : "UNK");
spa_type_audio_channel_make_short_name(position, port->position, sizeof(port->position), "UNK");
port->info = SPA_PORT_INFO_INIT();
port->info.change_mask = port->info_all = SPA_PORT_CHANGE_MASK_FLAGS |
@ -2067,6 +2065,7 @@ static int setup_in_convert(struct impl *this)
for (i = 0; i < src_info.info.raw.channels; i++) {
for (j = 0; j < dst_info.info.raw.channels; j++) {
uint32_t pi, pj;
char b1[8], b2[8];
pi = spa_format_audio_raw_get_position(&src_info.info.raw, i);
pj = spa_format_audio_raw_get_position(&dst_info.info.raw, j);
@ -2077,8 +2076,8 @@ static int setup_in_convert(struct impl *this)
remap = true;
spa_log_debug(this->log, "%p: channel %d (%d) -> %d (%s -> %s)", this,
i, in->remap[i], j,
spa_debug_type_find_short_name(spa_type_audio_channel, pi),
spa_debug_type_find_short_name(spa_type_audio_channel, pj));
spa_type_audio_channel_make_short_name(pi, b1, 8, "UNK"),
spa_type_audio_channel_make_short_name(pj, b2, 8, "UNK"));
spa_format_audio_raw_set_position(&dst_info.info.raw, j, -1);
break;
}
@ -2192,10 +2191,11 @@ static void set_volume(struct impl *this)
static char *format_position(char *str, size_t len, uint32_t channels, uint32_t *position, uint32_t max_position)
{
uint32_t i, idx = 0;
char buf[8];
for (i = 0; i < channels; i++)
idx += snprintf(str + idx, len - idx, "%s%s", i == 0 ? "" : " ",
spa_debug_type_find_short_name(spa_type_audio_channel,
position[i % max_position]));
spa_type_audio_channel_make_short_name(position[i % max_position],
buf, sizeof(buf), "UNK"));
return str;
}
@ -2359,6 +2359,7 @@ static int setup_out_convert(struct impl *this)
for (i = 0; i < src_info.info.raw.channels; i++) {
for (j = 0; j < dst_info.info.raw.channels; j++) {
uint32_t pi, pj;
char b1[8], b2[8];
pi = spa_format_audio_raw_get_position(&src_info.info.raw, i);
pj = spa_format_audio_raw_get_position(&dst_info.info.raw, j);
@ -2370,8 +2371,8 @@ static int setup_out_convert(struct impl *this)
spa_log_debug(this->log, "%p: channel %d (%d) -> %d (%s -> %s)", this,
i, out->remap[i], j,
spa_debug_type_find_short_name(spa_type_audio_channel, pi),
spa_debug_type_find_short_name(spa_type_audio_channel, pj));
spa_type_audio_channel_make_short_name(pi, b1, 8, "UNK"),
spa_type_audio_channel_make_short_name(pj, b2, 8, "UNK"));
spa_format_audio_raw_set_position(&dst_info.info.raw, j, -1);
break;

View file

@ -86,11 +86,12 @@ static int position_to_string(struct channel_map *map, char *val, size_t len)
{
uint32_t i, o = 0;
int r;
char pos[8];
o += snprintf(val, len, "[ ");
for (i = 0; i < map->channels; i++) {
r = snprintf(val+o, len-o, "%s%s", i == 0 ? "" : ", ",
spa_debug_type_find_short_name(spa_type_audio_channel,
map->pos[i]));
spa_type_audio_channel_make_short_name(map->pos[i],
pos, sizeof(pos), "UNK"));
if (r < 0 || o + r >= len)
return -ENOSPC;
o += r;

View file

@ -236,13 +236,14 @@ static inline void print_channels(char *buffer, size_t max_size, uint32_t n_posi
{
uint32_t i;
struct spa_strbuf buf;
char pos[8];
spa_strbuf_init(&buf, buffer, max_size);
spa_strbuf_append(&buf, "[");
for (i = 0; i < n_positions; i++) {
spa_strbuf_append(&buf, "%s%s", i ? "," : "",
spa_type_audio_channel_to_short_name(positions[i]));
spa_type_audio_channel_make_short_name(positions[i],
pos, sizeof(pos), "UNK"));
}
spa_strbuf_append(&buf, "]");
}