Hi all, I've moved to Diablo as it uses bluez-utils-3.28 which has the same API as version 2.32 on which I based the DSP code. Patching the DSP SBC encoder into bluez-utils 2.38 I can use sbcenc (good sign) so I tried to play music from mplayer using the a2dp tools produced by johnx to set it up.
I get the following error message: (none):/home/user/MyDocs/.sounds# a2dp enable (none):/home/user/MyDocs/.sounds# mplayer Moby-In_My_Heart.mp3 MPlayer 1.0rc1-maemo.27.n8x0 (C) 2000-2006 MPlayer Team CPU: ARM Internet Tablet OS version: RX-34+RX-44+RX-48_DIABLO_4.2008.22-8_PR_MR0 [MENU] Can't open menu config file: /root/.mplayer/menu.conf Menu inited: /etc/mplayer/menu.conf Playing Moby-In_My_Heart.mp3. Audio file file format detected. ========================================================================== Trying to force audio codec driver family dspmp3... Opening audio decoder: [dspmp3] MP3 audio pass-through for Nokia 770/N800 (fake decoder) ADecoder preinit failed :( ADecoder init failed :( Trying to force audio codec driver family libmad... Opening audio decoder: [libmad] libmad mpeg audio decoder AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400) Selected audio codec: [mad] afm: libmad (libMAD MPEG layer 1-2-3) ========================================================================== DEBUG: _snd_pcm_bluetooth_open: Bluetooth PCM plugin (Playback) DEBUG: audioservice_send: sending BT_GETCAPABILITIES_REQ DEBUG: audioservice_recv: trying to receive msg from audio service... DEBUG: audioservice_recv: Received BT_GETCAPABILITIES_RSP alsa-lib: pcm_bluetooth.c:1589:(bluetooth_init) BT_GETCAPABILITIES failed : Input/output error(5) alsa-init: playback open error: Input/output error Could not open/initialize audio device -> no sound. Audio: no sound Video: no video Exiting... (End of file) (none):/home/user/MyDocs/.sounds# Note that I've uncommented the #define ENABLE_DEBUG line in pcm_bluetooth.c to get some more info out. I have tried following the code back from bluetooth_init(), where the error occurs, but can't work out where/why it should occur (the code ends in an IPC and I don't know enough about the code to know where it goes to/from). I'd be very grateful for some advice/help in debugging this problem. If you'd like to test for yourself (and you probably need to be running Diablo for package compatibility), the ARM code which should be substituted into the bluez-utils-*/sbc directory can be found in the Garage svn under dsp-sbc/mk2/arm/ and a binary DSP task can be found here: http://people.bath.ac.uk/enpsgp/nokia770/dsp/sbc/sbcenc.o.diablo.rename-me (rename to sbcenc.o and place in /lib/dsp/modules/) to go with the sbcenc.cmd file which can be found in dsp-sbc/mk2/dsp/ (again place this file in /lib/dsp/modules/) You will need to add an entry line to the /lib/dsp/dsp_dld_avs.conf file like this: sbcenc <tab> _task_sbcenc <tab> 1 <tab> /lib/dsp/modules/sbcenc.o <tab> /lib/dsp/modules/sbcenc.cmd Then restart the dsp_dld to reload the conf file (by simply running "dsp_dld" in a terminal). DSP output can be seen in dmesg. A compiled bluez-utils can also be found here: http://people.bath.ac.uk/enpsgp/nokia770/dsp/sbc/bluez-utils_3.28-0osso4_armel.deb Thanks, Simon _______________________________________________ maemo-developers mailing list maemo-developers@maemo.org https://lists.maemo.org/mailman/listinfo/maemo-developers
