code.delx.au - pulseaudio/blob - src/tests/pacat-simple.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   PulseAudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with PulseAudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <unistd.h>
  28 #include <string.h>
  29 #include <errno.h>
  30 #include <fcntl.h>
  31
  32 #include <pulse/simple.h>
  33 #include <pulse/error.h>
  34 #include <pulsecore/gccmacro.h>
  35
  36 #define BUFSIZE 1024
  37
  38 int main(PA_GCC_UNUSED int argc, char*argv[]) {
  39
  40     /* The Sample format to use */
  41     static const pa_sample_spec ss = {
  42         .format = PA_SAMPLE_S16LE,
  43         .rate = 44100,
  44         .channels = 2
  45     };
  46
  47     pa_simple *s = NULL;
  48     int ret = 1;
  49     int error;
  50
  51     /* replace STDIN with the specified file if needed */
  52     if (argc > 1) {
  53         int fd;
  54
  55         if ((fd = open(argv[1], O_RDONLY)) < 0) {
  56             fprintf(stderr, __FILE__": open() failed: %s\n", strerror(errno));
  57             goto finish;
  58         }
  59
  60         if (dup2(fd, STDIN_FILENO) < 0) {
  61             fprintf(stderr, __FILE__": dup2() failed: %s\n", strerror(errno));
  62             goto finish;
  63         }
  64
  65         close(fd);
  66     }
  67
  68     /* Create a new playback stream */
  69     if (!(s = pa_simple_new(NULL, argv[0], PA_STREAM_PLAYBACK, NULL, "playback", &ss, NULL, NULL, &error))) {
  70         fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
  71         goto finish;
  72     }
  73
  74     for (;;) {
  75         uint8_t buf[BUFSIZE];
  76         ssize_t r;
  77
  78 #if 0
  79         pa_usec_t latency;
  80
  81         if ((latency = pa_simple_get_latency(s, &error)) == (pa_usec_t) -1) {
  82             fprintf(stderr, __FILE__": pa_simple_get_latency() failed: %s\n", pa_strerror(error));
  83             goto finish;
  84         }
  85
  86         fprintf(stderr, "%0.0f usec    \r", (float)latency);
  87 #endif
  88
  89         /* Read some data ... */
  90         if ((r = read(STDIN_FILENO, buf, sizeof(buf))) <= 0) {
  91             if (r == 0) /* EOF */
  92                 break;
  93
  94             fprintf(stderr, __FILE__": read() failed: %s\n", strerror(errno));
  95             goto finish;
  96         }
  97
  98         /* ... and play it */
  99         if (pa_simple_write(s, buf, r, &error) < 0) {
 100             fprintf(stderr, __FILE__": pa_simple_write() failed: %s\n", pa_strerror(error));
 101             goto finish;
 102         }
 103     }
 104
 105     /* Make sure that every single sample was played */
 106     if (pa_simple_drain(s, &error) < 0) {
 107         fprintf(stderr, __FILE__": pa_simple_drain() failed: %s\n", pa_strerror(error));
 108         goto finish;
 109     }
 110
 111     ret = 0;
 112
 113 finish:
 114
 115     if (s)
 116         pa_simple_free(s);
 117
 118     return ret;
 119 }