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pulse: parse and fill up the array of formats

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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
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@ -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]);
}