PortAudio for Lazarus ?

[Fred vS]

@ Leledumbo : you are great 

First i install : libasound-dev

fred@fred-AO533:~$ sudo apt-get install libasound-dev

OK, installed 

Then in portaudio directory :

fred@fred-AO533:~/portaudio$ ./configure

Superb, i have that message in the end :

Configuration summary:

  Target ...................... x86_64-unknown-linux-gnu
  C++ bindings ................ no
  Debug output ................ no

  ALSA ........................ yes
  ASIHPI ...................... no

  OSS ......................... yes
  JACK ........................ no

Next steps : make(s) :

fred@fred-AO533:~/portaudio$ make clean

OK 

fred@fred-AO533:~/portaudio$ make

OK 

fred@fred-AO533:~/portaudio$ sudo make install

OK   



Now i try the pascal compiled application given by you (http://sourceforge.net/projects/humus/files/)

fred@fred-AO533:~/portaudiopas$ ./testpabasic
PA version int: 1899
PA version text: PortAudio V19-devel (built Jul 11 2012 20:30:45)
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
Doing PA init: Success
Host API count (OK if positive): 2
Default host API: 0
Found host API 0 which is ALSA (devices:
Found host API 1 which is OSS (devices: 0)
Default output device: 7
Doing PA termination: Success

Whaouw,  now i try the one with sound .... 

fred@fred-AO533:~/portaudiopas$ ./testpasine
PortAudio Test: Output Sine wave. SR = 44100, Buffer size = 64
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
Latency 0.04643990929705
Press <RETURN> to attempt start playing a Sine for 1 sec.

Play for 1 seconds.
Stream Completed: No Message
Test finished.

Yep, i hear a beautiful sine wave 

Superb, i gonna work and try that lib.

PS : Humm, i have seen that the portaudio.pas do not use dynamic loading of libraries. Does it exist a dynamic loading pascal header for portaudio ?

If not, it will be a big honor for me to translate the portaudio.pas into dynamic_portaudio.pas   

[Leledumbo]

Humm, i have seen that the portaudio.pas do not use dynamic loading of libraries. Does it exist a dynamic loading pascal header for portaudio ?

This one is the best I know, so if it doesn't have dynamic loading version, I don't think it exists anywhere else. Most Pascal bindings use static loading, so feel free to create dynamic one.

[BigChimp]

Sounds like a useful candidate for Lazarus CCR perhaps?

(Also thinking of moving my twitter/OAuthv1 library there...)

[Fred vS]

@ Leledumbo

This one is the best I know, so if it doesn't have dynamic loading version, I don't think it exists anywhere else. Most Pascal bindings use static loading, so feel free to create dynamic one.

Nice to know (better work from something best).
It seems that a dynamic version would be useful. For example, when i have compiled and installed the new version of Portaudio, my Audacity does not work any more 
After Googling i find that Audacity needs his own version of Portaudio library and with any other it does not load...

Of course, when i finish the work and have test it, i gonna sent you the dynamic loader... 

@ mica : thanks for http://breakoutbox.de/pascal/pascal.html

Super for Windows but does not work on Linux (i can translate it for all systems if you want).

[mica]

@ mica : thanks for http://breakoutbox.de/pascal/pascal.html

Super for Windows but does not work on Linux (i can translate it for all systems if you want).

the examples are not from me,but you can do the translation and contact the author or add it to ccr.

[Fred vS]

Yep, dynamic_portaudio.pas is ready 
I gonna give it in a new topic...

[PeterK]

thanks for http://breakoutbox.de/pascal/pascal.html

Super for Windows but does not work on Linux (i can translate it for all systems if you want).

Hi,

did You already edit these files to make them run on Linux ?

Thanks

[Fred vS]

@ PeterK : Did you have a look at United Openlib of Sound ?

http://www.lazarus.freepascal.org/index.php/topic,17599.msg97293.html#msg97293

It includes Portaudio, SndFile and MPG123 dynamic loading for Lazarus Windows, Linux and Mac OSX.

PS :  http://breakoutbox.de/pascal/pascal.html do not work for Linux / OSX.