From cfc2f7d280ae57ef563dd69bad27c61a148d6ded Mon Sep 17 00:00:00 2001 From: Miller Puckette Date: Mon, 6 Sep 2004 20:44:42 +0000 Subject: ... more changes to try to upload 0.38 test 5 to CVS svn path=/trunk/; revision=2011 --- pd/portaudio/pa_unix_oss/recplay.c | 114 +++++++++++++++++++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 pd/portaudio/pa_unix_oss/recplay.c (limited to 'pd/portaudio/pa_unix_oss/recplay.c') diff --git a/pd/portaudio/pa_unix_oss/recplay.c b/pd/portaudio/pa_unix_oss/recplay.c new file mode 100644 index 00000000..9d4c78cf --- /dev/null +++ b/pd/portaudio/pa_unix_oss/recplay.c @@ -0,0 +1,114 @@ +/* + * recplay.c + * Phil Burk + * Minimal record and playback test. + * + */ +#include +#include +#include +#ifndef __STDC__ +/* #include */ +#endif /* __STDC__ */ +#include +#ifdef __STDC__ +#include +#else /* __STDC__ */ +#include +#endif /* __STDC__ */ +#include + +#define NUM_BYTES (64*1024) +#define BLOCK_SIZE (4*1024) + +#define AUDIO "/dev/dsp" + +char buffer[NUM_BYTES]; + +int audioDev = 0; + +main (int argc, char *argv[]) +{ + int numLeft; + char *ptr; + int num; + int samplesize; + + /********** RECORD ********************/ + /* Open audio device. */ + audioDev = open (AUDIO, O_RDONLY, 0); + if (audioDev == -1) + { + perror (AUDIO); + exit (-1); + } + + /* Set to 16 bit samples. */ + samplesize = 16; + ioctl(audioDev, SNDCTL_DSP_SAMPLESIZE, &samplesize); + if (samplesize != 16) + { + perror("Unable to set the sample size."); + exit(-1); + } + + /* Record in blocks */ + printf("Begin recording.\n"); + numLeft = NUM_BYTES; + ptr = buffer; + while( numLeft >= BLOCK_SIZE ) + { + if ( (num = read (audioDev, ptr, BLOCK_SIZE)) < 0 ) + { + perror (AUDIO); + exit (-1); + } + else + { + printf("Read %d bytes\n", num); + ptr += num; + numLeft -= num; + } + } + + close( audioDev ); + + /********** PLAYBACK ********************/ + /* Open audio device for writing. */ + audioDev = open (AUDIO, O_WRONLY, 0); + if (audioDev == -1) + { + perror (AUDIO); + exit (-1); + } + + /* Set to 16 bit samples. */ + samplesize = 16; + ioctl(audioDev, SNDCTL_DSP_SAMPLESIZE, &samplesize); + if (samplesize != 16) + { + perror("Unable to set the sample size."); + exit(-1); + } + + /* Play in blocks */ + printf("Begin playing.\n"); + numLeft = NUM_BYTES; + ptr = buffer; + while( numLeft >= BLOCK_SIZE ) + { + if ( (num = write (audioDev, ptr, BLOCK_SIZE)) < 0 ) + { + perror (AUDIO); + exit (-1); + } + else + { + printf("Wrote %d bytes\n", num); + ptr += num; + numLeft -= num; + } + } + + close( audioDev ); +} -- cgit v1.2.1