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bluez5: enable duplex for aptx-ll

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aptX-LL sink devices may send back mSBC encoded data corresponding to
microphone input.  It appears to be enabled when the bidirectional link
is set in the caps, and the device also supports this.

Implement mSBC decoding in the duplex channel.

Tested to be working on Avantree Aria Pro.
This commit is contained in:
Pauli Virtanen 2021-08-18 17:19:05 +03:00
parent 623b6df8a2
commit dedc08cdf8
7 changed files with 208 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

1
spa/include/spa/param/bluetooth/audio.h
View file

@ -45,6 +45,7 @@ enum spa_bluetooth_audio_codec {
SPA_BLUETOOTH_AUDIO_CODEC_APTX_HD,
SPA_BLUETOOTH_AUDIO_CODEC_LDAC,
SPA_BLUETOOTH_AUDIO_CODEC_APTX_LL,
SPA_BLUETOOTH_AUDIO_CODEC_APTX_LL_DUPLEX,
/* HFP */
SPA_BLUETOOTH_AUDIO_CODEC_CVSD = 0x100,

1
spa/include/spa/param/bluetooth/type-info.h
View file

@ -49,6 +49,7 @@ static const struct spa_type_info spa_type_bluetooth_audio_codec[] = {
{ SPA_BLUETOOTH_AUDIO_CODEC_APTX_HD, SPA_TYPE_Int, SPA_TYPE_INFO_BLUETOOTH_AUDIO_CODEC_BASE "aptx_hd", NULL },
{ SPA_BLUETOOTH_AUDIO_CODEC_LDAC, SPA_TYPE_Int, SPA_TYPE_INFO_BLUETOOTH_AUDIO_CODEC_BASE "ldac", NULL },
{ SPA_BLUETOOTH_AUDIO_CODEC_APTX_LL, SPA_TYPE_Int, SPA_TYPE_INFO_BLUETOOTH_AUDIO_CODEC_BASE "aptx_ll", NULL },
{ SPA_BLUETOOTH_AUDIO_CODEC_APTX_LL_DUPLEX, SPA_TYPE_Int, SPA_TYPE_INFO_BLUETOOTH_AUDIO_CODEC_BASE "aptx_ll_duplex", NULL },
{ SPA_BLUETOOTH_AUDIO_CODEC_CVSD, SPA_TYPE_Int, SPA_TYPE_INFO_BLUETOOTH_AUDIO_CODEC_BASE "cvsd", NULL },
{ SPA_BLUETOOTH_AUDIO_CODEC_MSBC, SPA_TYPE_Int, SPA_TYPE_INFO_BLUETOOTH_AUDIO_CODEC_BASE "msbc", NULL },