aptx-debian

sudo apt install cmake libpulse-dev libsbc-dev libavcodec-dev fdkaac libbluetooth-dev libltdl-dev libdbus-glib-1-dev libfdk-aac-dev
git clone https://github.com/EHfive/pulseaudio-modules-bt.git
cd pulseaudio-modules-bt/
git submodule update --init
git -C pa/ checkout master
mkdir build && cd build
cmake -DFORCE_LARGEST_PA_VERSION=ON ..

-- The C compiler identification is GNU 9.2.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29") 
-- Checking for module 'libpulse'
--   Found libpulse, version 13.0
-- Checking for module 'dbus-1'
--   Found dbus-1, version 1.12.16
-- Checking for module 'sbc'
--   Found sbc, version 1.4
-- Checking for module 'libavcodec>=58.18.100'
--   Found libavcodec, version 58.54.100
-- Checking for module 'libavutil>=56.14.100'
--   Found libavutil, version 56.31.100
-- Checking for module 'fdk-aac>=0.1.5'
--   Found fdk-aac, version 2.0.1
-- Checking for module 'ldacBT-enc'
--   No package 'ldacBT-enc' found
-- Checking for module 'ldacBT-abr'
--   No package 'ldacBT-abr' found
[HFP] ofono HFP headset support enabled
[HSP] native HSP headset support enabled
[A2DP] FFmpeg aptX support enabled
[A2DP] FFmpeg aptX HD support enabled
[A2DP] fdk-aac LC-AAC support enabled
-- CMAKE_C_FLAGS =  -O2 -Wall -Wno-builtin-macro-redefined -Wno-unused -fno-common -DFASTPATH -D__FILE__='"$(subst /home/vsefer/pulseaudio-modules-bt/src/,,$(abspath $<))"'
-- Configuring done
-- Generating done
-- Build files have been written to: /home/vsefer/pulseaudio-modules-bt/build

make -j8
sudo make install
pulseaudio -k
pulseaudio --start

pactl list | grep a2dp_codec
		bluetooth.a2dp_codec = "aptX"