* a2dp codec selection
@ 2014-02-28 16:45 tropp
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From: tropp @ 2014-02-28 16:45 UTC (permalink / raw)
To: linux-bluetooth
hi,
i am using a2dp to connect my bluetooth headphones to my pc. the headphones are supporting the mandatory sbc codec and additionally the aac and aptX codecs. the following defines in profiles/audio/a2dp-codecs.h let me assume that at least sbc, mp3, aac and atrac are supported audio codecs by bluez:
#define A2DP_CODEC_SBC 0x00
#define A2DP_CODEC_MPEG12 0x01
#define A2DP_CODEC_MPEG24 0x02
#define A2DP_CODEC_ATRAC 0x03
#define A2DP_CODEC_VENDOR 0xFF
i want to use the aac codec for the best audio quality. therefore i added the following lines to my /etc/bluetooth/audio.conf
[A2DP]
SBCSources=0
MPEG24Sources=1
is there any possibility to check which codec is currently used if a a2dp link is established? i want to confirm that aac is really used, or if i am using sbc, which bitrate is selected.
i am using ubuntu 12.10.
regards, tropp
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