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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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25
spa/plugins/bluez5/a2dp-codec-aptx.c
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@ -76,11 +76,21 @@ static int codec_fill_caps(const struct a2dp_codec *codec, uint32_t flags,
return actual_conf_size;
}
static struct a2dp_codec_config
aptx_frequencies[] = {
{ APTX_SAMPLING_FREQ_48000, 48000, 3 },
{ APTX_SAMPLING_FREQ_44100, 44100, 2 },
{ APTX_SAMPLING_FREQ_32000, 32000, 1 },
{ APTX_SAMPLING_FREQ_16000, 16000, 0 },
};
static int codec_select_config(const struct a2dp_codec *codec, uint32_t flags,
const void *caps, size_t caps_size,
const struct a2dp_codec_audio_info *info,
const struct spa_dict *settings, uint8_t config[A2DP_MAX_CAPS_SIZE])
{
a2dp_aptx_t conf;
int i;
size_t actual_conf_size = codec_get_caps_size(codec);
if (caps_size < sizeof(conf) || actual_conf_size < sizeof(conf))
@ -92,16 +102,13 @@ static int codec_select_config(const struct a2dp_codec *codec, uint32_t flags,
codec->vendor.codec_id != conf.info.codec_id)
return -ENOTSUP;
if (conf.frequency & APTX_SAMPLING_FREQ_48000)
conf.frequency = APTX_SAMPLING_FREQ_48000;
else if (conf.frequency & APTX_SAMPLING_FREQ_44100)
conf.frequency = APTX_SAMPLING_FREQ_44100;
else if (conf.frequency & APTX_SAMPLING_FREQ_32000)
conf.frequency = APTX_SAMPLING_FREQ_32000;
else if (conf.frequency & APTX_SAMPLING_FREQ_16000)
conf.frequency = APTX_SAMPLING_FREQ_16000;
else
if ((i = a2dp_codec_select_config(aptx_frequencies,
SPA_N_ELEMENTS(aptx_frequencies),
conf.frequency,
info ? info->rate : A2DP_CODEC_DEFAULT_RATE
)) < 0)
return -ENOTSUP;
conf.frequency = aptx_frequencies[i].config;
if (conf.channel_mode & APTX_CHANNEL_MODE_STEREO)
conf.channel_mode = APTX_CHANNEL_MODE_STEREO;