out_esd.c

   1 /*
   2
   3     Ann Hell Ex Machina - Music Software
   4     Copyright (C) 2003/2005 Angel Ortega <angel@triptico.com>
   5
   6     out_esd.c - Output driver for the Enlightened Sound Daemon
   7
   8     This program is free software; you can redistribute it and/or
   9     modify it under the terms of the GNU General Public License
  10     as published by the Free Software Foundation; either version 2
  11     of the License, or (at your option) any later version.
  12
  13     This program is distributed in the hope that it will be useful,
  14     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16     GNU General Public License for more details.
  17
  18     You should have received a copy of the GNU General Public License
  19     along with this program; if not, write to the Free Software
  20     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21
  22     http://www.triptico.com
  23
  24 */
  25
  26 #include "config.h"
  27 #include <stdio.h>
  28 #include "ss_output.h"
  29
  30 #ifdef CONFOPT_ESD
  31
  32 #include <unistd.h>
  33 #include <esd.h>
  34 #include "ss_core.h"
  35
  36 /*******************
  37         Data
  38 ********************/
  39
  40 /* esd socket */
  41 int _esd_fd;
  42
  43 #ifndef ESD_BUFFER_SIZE
  44 #define ESD_BUFFER_SIZE 65536
  45 #endif
  46
  47
  48 /*******************
  49         Code
  50 ********************/
  51
  52 int _out_open_esd(char * file)
  53 {
  54         esd_format_t format;
  55
  56         /* ESD does not support more than stereo output */
  57         if(ss_nchannels > 2)
  58                 ss_nchannels=2;
  59
  60         format = ESD_STREAM | ESD_PLAY | ESD_BITS16;
  61         format |= ss_nchannels == 2 ? ESD_STEREO : ESD_MONO;
  62
  63         _esd_fd=esd_open_sound(file);
  64
  65         if(_esd_fd < 0)
  66                 return(-100);
  67
  68         _esd_fd=esd_play_stream_fallback(format, ss_frequency, NULL, "annhell");
  69
  70         if(_esd_fd < 0)
  71                 return(-101);
  72
  73         return(ESD_BUFFER_SIZE);
  74 }
  75
  76
  77 int _out_write_esd(short int * buffer, int size)
  78 {
  79         return(write(_esd_fd, buffer, size * sizeof(short int)));
  80 }
  81
  82
  83 int _out_close_esd(void)
  84 {
  85         esd_close(_esd_fd);
  86
  87         return(0);
  88 }
  89
  90 /* driver */
  91
  92 struct _output_driver _out_driver_esd=
  93 { "esd", NULL, _out_open_esd, _out_write_esd, _out_close_esd };
  94
  95 #else /* CONFOPT_ESD */
  96
  97 struct _output_driver _out_driver_esd=
  98 { "esd", NULL, NULL, NULL, NULL };
  99
 100 #endif /* CONFOPT_ESD */