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bluez5: add properties for A2DP codec sample rate & channel mode configuration

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Those properties are set as reference sample rate and channels number for A2DP configuration selecting.
This commit is contained in:
Huang-Huang Bao 2021-05-03 15:40:13 +08:00 • committed by Wim Taymans
parent 15239ff74d
commit 9384ba5500
8 changed files with 234 additions and 132 deletions
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54
spa/plugins/bluez5/a2dp-codecs.c
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@ -10,7 +10,57 @@
#include "a2dp-codecs.h"
bool a2dp_codec_check_caps(const struct a2dp_codec *codec, unsigned int codec_id, const void *caps, size_t caps_size)
int a2dp_codec_select_config(const struct a2dp_codec_config configs[], size_t n,
uint32_t cap, int preferred_value)
{
size_t i;
int *scores, res;
unsigned int max_priority;
if (n == 0)
return -EINVAL;
scores = calloc(n, sizeof(int));
if (scores == NULL)
return -errno;
max_priority = configs[0].priority;
for (i = 1; i < n; ++i) {
if (configs[i].priority > max_priority)
max_priority = configs[i].priority;
}
for (i = 0; i < n; ++i) {
if (!(configs[i].config & cap)) {
scores[i] = -1;
continue;
}
if (configs[i].value == preferred_value)
scores[i] = 100 * (max_priority + 1);
else if (configs[i].value > preferred_value)
scores[i] = 10 * (max_priority + 1);
else
scores[i] = 1;
scores[i] *= configs[i].priority + 1;
}
res = 0;
for (i = 1; i < n; ++i) {
if (scores[i] > scores[res])
res = i;
}
if (scores[res] < 0)
res = -EINVAL;
free(scores);
return res;
}
bool a2dp_codec_check_caps(const struct a2dp_codec *codec, unsigned int codec_id,
const void *caps, size_t caps_size,
const struct a2dp_codec_audio_info *info)
{
uint8_t config[A2DP_MAX_CAPS_SIZE];
int res;
@ -21,7 +71,7 @@ bool a2dp_codec_check_caps(const struct a2dp_codec *codec, unsigned int codec_id
if (caps == NULL)
return false;
res = codec->select_config(codec, 0, caps, caps_size, NULL, config);
res = codec->select_config(codec, 0, caps, caps_size, info, NULL, config);
if (res < 0)
return false;