mirror of
https://git.FreeBSD.org/ports.git
synced 2024-12-04 01:48:54 +00:00
2607aee727
and /dev/dsp using a dynamic preloaded library. It saves the audio stream to an .au or .wav file as it is played. This is useful for certain dynamically-linked Linux binary applications.
19 lines
959 B
Plaintext
19 lines
959 B
Plaintext
This program allows you to record the output of any standard OSS
|
|
program (one that uses /dev/dsp for sound) without having to modify or
|
|
recompile the program. It uses the same idea as the esddsp wrapper
|
|
from the Enlightened Sound Daemon (in fact, vsound is based on
|
|
esddsp). That is, it preloads a library that intercepts calls to open
|
|
/dev/dsp, and instead returns a handle to a normal file. It also
|
|
intercepts ioctl's on that file handle and logs them, to help convert
|
|
the audio data from its raw form. Vsound then uses sox to convert the
|
|
raw data to the desired file format.
|
|
|
|
The upshoot of this is that instead of playing sound to the sound card
|
|
in your computer, the data is recorded to a file. This is similar to
|
|
if you connected a loopback cable to the line in and line out jacks on
|
|
your sound card, but no DA or AD conversions take place, so quality is
|
|
not lost.
|
|
|
|
Erik de Castro Lopo <erikd@zip.com.au>
|
|
WWW: http://www.zip.com.au/~erikd/vsound/
|