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acp: remove duplicate AUX channels in pa channelmap

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The pulseaudio channel map can only hold 32 AUX channels and we reuse
them when we need more. When we find a duplicate channel, map it to the
next AUX channels.
This commit is contained in:
Wim Taymans 2021-10-18 10:53:07 +02:00
parent a475926f87
commit e1898812b2
1 changed files with 14 additions and 3 deletions
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17
spa/plugins/alsa/acp/acp.c
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@ -201,10 +201,22 @@ static void device_free(void *data)
pa_hashmap_free(dev->ports);
}
static inline void channelmap_to_acp(pa_channel_map *m, uint32_t *map)
{
uint32_t i, j;
for (i = 0; i < m->channels; i++) {
map[i] = channel_pa2acp(m->map[i]);
for (j = 0; j < i; j++) {
if (map[i] == map[j])
map[i] += 32;
}
}
}
static void init_device(pa_card *impl, pa_alsa_device *dev, pa_alsa_direction_t direction,
pa_alsa_mapping *m, uint32_t index)
{
uint32_t i;
char **d;
dev->card = impl;
@ -219,8 +231,7 @@ static void init_device(pa_card *impl, pa_alsa_device *dev, pa_alsa_direction_t
dev->device.format.channels = m->channel_map.channels;
pa_cvolume_reset(&dev->real_volume, dev->device.format.channels);
pa_cvolume_reset(&dev->soft_volume, dev->device.format.channels);
for (i = 0; i < m->channel_map.channels; i++)
dev->device.format.map[i]= channel_pa2acp(m->channel_map.map[i]);
channelmap_to_acp(&m->channel_map, dev->device.format.map);
dev->direction = direction;
dev->proplist = pa_proplist_new();
pa_proplist_update(dev->proplist, PA_UPDATE_REPLACE, m->proplist);