[pulseaudio-discuss] [PATCH v2 0/2] Bluetooth A2DP aptX codec support

ValdikSS iam at valdikss.org.ru
Fri Aug 3 13:22:05 UTC 2018

Doesn't work for me with Intel 7260 Bluetooth 4.0 and RealForce OverDrive D1.

When I connect headphones and change Pulseaudio profile from "Off" to "High Fidelity SBC playback (a2dp sink)", everything works as expected with SBC.
Profile does not switch if I choose "High Fidelity aptX playback (a2dp sink)" when SBC profile is already active, log message:

W: [pulseaudio] module-bluez5-device.c: Refused to switch profile to a2dp_aptx_sink: Not connected

When I try to switch to aptX profile from "off" profile, pulseaudio crashes:

E: [pulseaudio] module-bluez5-device.c: Assertion '!u->thread' failed at modules/bluetooth/module-bluez5-device.c:1491, function start_thread(). Aborting.

Thread 1 "pulseaudio" received signal SIGABRT, Aborted.
0x00007ffff44edfeb in raise () from /lib64/libc.so.6
(gdb) bt
#0  0x00007ffff44edfeb in raise () from /lib64/libc.so.6
#1  0x00007ffff44d85c1 in abort () from /lib64/libc.so.6
#2  0x00007fff7f3dab45 in start_thread (u=u at entry=0x55555593d640) at modules/bluetooth/module-bluez5-device.c:1491
#3  0x00007fff7f3dd263 in set_profile_cb (c=<optimized out>, new_profile=0x5555559251a0) at modules/bluetooth/module-bluez5-device.c:1859
#4  0x00007ffff7b5148e in pa_card_set_profile (c=c at entry=0x5555558e4c20, profile=profile at entry=0x5555559251a0, save=save at entry=true) at pulsecore/card.c:318
#5  0x00007fffe0a0362d in command_set_card_profile (pd=<optimized out>, command=<optimized out>, tag=127, t=<optimized out>, userdata=<optimized out>) at pulsecore/protocol-native.c:4728
#6  0x00007ffff6d83813 in pa_pdispatch_run (pd=0x555555a2e4b0, packet=packet at entry=0x5555558a3020, ancil_data=ancil_data at entry=0x555555975bf8, userdata=userdata at entry=0x5555558bebf0) at pulsecore/pdispatch.c:346
#7  0x00007fffe0a0bee9 in pstream_packet_callback (p=0x555555975960, packet=0x5555558a3020, ancil_data=0x555555975bf8, userdata=0x5555558bebf0) at pulsecore/protocol-native.c:4951
#8  0x00007ffff6d8629d in do_read (p=p at entry=0x555555975960, re=re at entry=0x555555975b28) at pulsecore/pstream.c:1012
#9  0x00007ffff6d890eb in do_pstream_read_write (p=0x555555975960) at pulsecore/pstream.c:248
#10 0x00007ffff6d8949d in srb_callback (srb=0x5555558b0660, userdata=0x555555975960) at pulsecore/pstream.c:287
#11 0x00007ffff6d89d2a in srbchannel_rwloop (sr=0x5555558b0660) at pulsecore/srbchannel.c:190
#12 0x00007ffff78fc8a8 in dispatch_pollfds (m=0x55555576f120) at pulse/mainloop.c:140
#13 pa_mainloop_dispatch (m=m at entry=0x55555576f120) at pulse/mainloop.c:898
#14 0x00007ffff78fcb80 in pa_mainloop_iterate (m=0x55555576f120, block=<optimized out>, retval=0x7fffffffdc18) at pulse/mainloop.c:929
#15 0x00007ffff78fcc20 in pa_mainloop_run (m=0x55555576f120, retval=0x7fffffffdc18) at pulse/mainloop.c:945
#16 0x000055555555b0c9 in main (argc=<optimized out>, argv=<optimized out>) at daemon/main.c:1144

I haven't installed any patches for bluez itself. Should I? If yes, which exactly?
I moved libopenaptx to autotools and made Fedora .spec file for openaptx, are you interested in autotools support for libopenaptx, should I create a pull request to your repository?

On 28.07.2018 18:34, Pali Rohár wrote:
> This patch series moves A2DP codec code into new modules and add
> support for Bluetooth A2DP aptX codec.
> Pali Rohár (2):
>   Modular API for Bluetooth A2DP codec
>   Bluetooth A2DP aptX codec support
>  configure.ac                                 |  19 +
>  src/Makefile.am                              |  14 +-
>  src/modules/bluetooth/a2dp-codecs.h          | 123 +++++-
>  src/modules/bluetooth/bluez5-util.c          | 377 +++++++----------
>  src/modules/bluetooth/bluez5-util.h          |  12 +-
>  src/modules/bluetooth/module-bluez5-device.c | 542 ++++++++-----------------
>  src/modules/bluetooth/pa-a2dp-codec-aptx.c   | 297 ++++++++++++++
>  src/modules/bluetooth/pa-a2dp-codec-sbc.c    | 579 +++++++++++++++++++++++++++
>  src/modules/bluetooth/pa-a2dp-codec.h        |  41 ++
>  9 files changed, 1393 insertions(+), 611 deletions(-)
>  create mode 100644 src/modules/bluetooth/pa-a2dp-codec-aptx.c
>  create mode 100644 src/modules/bluetooth/pa-a2dp-codec-sbc.c
>  create mode 100644 src/modules/bluetooth/pa-a2dp-codec.h

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