jbclements/portaudio

Racket Bindings for PortAudio

This repository provides bindings for the portable audio library 'portaudio' for the Racket language. It started life as part of the 'rsound' library.

Install it using

raco pkg install portaudio

portaudio's Issues

ffi-lib can't find callbacks.so on linux

when I try to include portaudio I get this error:

Welcome to Racket v7.7.
> (require portaudio)
; ffi-lib: couldn't open "callbacks.so" (callbacks.so: cannot open shared
;   object file: No such file or directory) [,bt for context]
> ,bt
; ffi-lib: couldn't open "callbacks.so" (callbacks.so: cannot open shared object file: No such file or directory)
;   context...:
;    /usr/share/racket/collects/ffi/unsafe.rkt:131:0: get-ffi-lib
;    "/home/dagon/.racket/7.7/pkgs/portaudio/portaudio/callback-support.rkt": [running body]
;    temp35_0
;    for-loop
;    run-module-instance!
;    for-loop
;    [repeats 1 more time]
;    run-module-instance!
;    perform-require!
;    for-loop
;    eval-one-top
;    /usr/share/racket/pkgs/xrepl-lib/xrepl/xrepl.rkt:1478:0
;    /usr/share/racket/collects/racket/repl.rkt:11:26
> 

I know that callbacks.so exists, I can see it, I just don't know where the ffi wants it.

RSound function breaks its own contract using stream-play/unsafe

This might be a problem with either RSound or Portaudio. The contract on RSound's signal/block-play/unsafe promises that it will treat its first argument, block-filler, as a (-> cpointer? natural? void?) function, but it passes it to Portaudio's stream-play/unsafe, which treats it as a (-> cpointer? int? void?) function.

So, stream-play/unsafe calls it with the int -630867962 where signal/block-play/unsafe promised a natural number.

Is stream-play/unsafe in the wrong here? Is this some kind of overflow, or is it supposed to be able to use negative integers?

.../collects/racket/contract/private/blame.rkt:163:0: signal/block-play/unsafe: broke its own contract
  promised: natural?
  produced: -630867962
  in: the 2nd argument of
      the 1st argument of
      (->
       (-> cpointer? natural? void?)
       nonnegative-real?
       (or/c nonnegative-real? false?)
       (-> nonnegative-real?))
  contract from: 
      <pkgs>/rsound/rsound/rsound-commander.rkt
  blaming: <pkgs>/rsound/rsound/rsound-commander.rkt
   (assuming the contract is correct)
  at: <pkgs>/rsound/rsound/rsound-commander.rkt:46.3

portaudio/info.rkt version should also be updated

018e7c9 changed the version number in toplevel info.rkt, but in order to get rsound working I also needed to change portaudio/info.rkt

Should there really be two separate version numbers or info files to maintain anyway?

Raco exe does not work.

How to reproduce:
Create a test.rkt with contents

#lang racket
(require portaudio)

(displayln "This will fail")

Run raco exe test.rkt

Try running ./test

Output

collection-file-path: collection not found
  collection: "portaudio/lib"
  in collection directories:
  context...:
   /Applications/Racket v7.7/collects/racket/private/collect.rkt:26:58: fail
   '#%embedded:portaudio/portaudio:: [running body]
   temp35_0
   for-loop
   run-module-instance!
   for-loop
   [repeats 1 more time]
   run-module-instance!
   for-loop
   [repeats 1 more time]
   run-module-instance!
   for-loop
   [repeats 1 more time]
   run-module-instance!
   for-loop
   [repeats 1 more time]

Because of this I am unable to create any executable files that depend on rsound, what could be the issue?

Thanks for the lib!

PS, I had opened an issue in Rsound, this is the root cause. Put it there for others' reference if they face the same issue.

This package does not appear to work on travisci

When I run the following commands:

> (require portaudio)
> (pa-mabybe-initialize)
> (pa-get-device-count)

The library returns that there are 0 devices. (It also complains that it cannot connect to alsa or jack):

...
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4727:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4727:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM default
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4248:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4727:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM dmix
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started

I should mention that I do have portaudio installed from the repos. Also, a quick google search seems to indicate that other projects are able to test portaudio just fine, which makes me think there is something about this setup that is confusing travis.

[Question] Audio input

I have been looking for a way to get an audio stream into racket. Portaudio seems to be able to do that:
http://files.portaudio.com/docs/v19-doxydocs/open_default_stream.html

However, the bindings don't seem to allow anything like this. Is this still in the works?

Add `cs` directories

The shared objects in the 3m directories only work on the 3M variant of Racket. If you use the CS variant, they won't be found. I got around this using symlinks, but the libraries should be available in either case.

Issues with .dylibs

I'm running racket from macos 12 on an m1 chip,
using (require portaudio) I encountered this:

ffi-lib: could not load foreign library
  path: callbacks.dylib
  system error: dlopen(callbacks.dylib, 0x000A): tried: 'callbacks.dylib' (no such file),
 '/usr/local/lib/callbacks.dylib' (no such file), '/usr/lib/callbacks.dylib' (no such file)...

Also the paths didnt seem to match for portaudio.dylib either, for that one, I recompiled portaudio and linked it.

Update portaudio dylib for os x.

The version of portaudio that this ships is old, and causes an error message like this to be printed:

2018-06-13 11:05:23.781 DrRacket[12511:1288003] 11:05:23.781 WARNING: 140: This application, or a library it uses, is using the deprecated Carbon Component Manager for hosting Audio Units. Support for this will be removed in a future release. Also, this makes the host incompatible with version 3 audio units. Please transition to the API's in AudioComponent.h.

It seems like the right thing to do here would be to update the dylib that portaudio ships with for os x.