interpretor/libsndfile-1.0.25/programs/sndfile-play-beos.cpp

   1 /*
   2 ** Copyright (C) 2001 Marcus Overhagen <marcus@overhagen.de>
   3 **
   4 ** This program is free software; you can redistribute it and/or modify
   5 ** it under the terms of the GNU General Public License as published by
   6 ** the Free Software Foundation; either version 2 of the License, or
   7 ** (at your option) any later version.
   8 **
   9 ** This program is distributed in the hope that it will be useful,
  10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 ** GNU General Public License for more details.
  13 **
  14 ** You should have received a copy of the GNU General Public License
  15 ** along with this program; if not, write to the Free Software
  16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17 */
  18
  19 #include        <stdio.h>
  20
  21 #include        <Application.h>
  22 #include        <SoundPlayer.h>
  23 #include        <string.h>
  24
  25 #include        <sndfile.h>
  26
  27 #define BUFFER_LEN              1024
  28
  29 /*------------------------------------------------------------------------------
  30 **      BeOS functions for playing a sound.
  31 */
  32
  33 #if defined (__BEOS__)
  34
  35 struct shared_data
  36 {
  37         BSoundPlayer *player;
  38         SNDFILE *sndfile;
  39         SF_INFO sfinfo;
  40         sem_id finished;
  41 };
  42
  43 static void
  44 buffer_callback(void *theCookie, void *buf, size_t size, const media_raw_audio_format &format)
  45 {
  46         shared_data *data = (shared_data *)theCookie;
  47         short *buffer = (short *)buf;
  48         int count = size / sizeof(short);
  49         int m, readcount;
  50
  51         if (!data->player->HasData())
  52                 return;
  53
  54         readcount = sf_read_short(data->sndfile, buffer, count);
  55         if (readcount == 0)
  56         {       data->player->SetHasData(false);
  57                 release_sem(data->finished);
  58                 }
  59         if (readcount < count)
  60         {       for (m = readcount ; m < count ; m++)
  61                         buffer [m] = 0 ;
  62                 }
  63         if (data->sfinfo.pcmbitwidth < 16)
  64         {       for (m = 0 ; m < count ; m++)
  65                         buffer [m] *= 256 ;
  66                 }
  67 }
  68
  69 static void
  70 beos_play (int argc, char *argv [])
  71 {
  72         shared_data data;
  73         status_t status;
  74         int     k;
  75
  76         /* BSoundPlayer requires a BApplication object */
  77         BApplication app("application/x-vnd.MarcusOverhagen-sfplay");
  78
  79         for (k = 1 ; k < argc ; k++)
  80         {       printf ("Playing %s\n", argv [k]) ;
  81                 if (! (data.sndfile = sf_open_read (argv [k], &data.sfinfo)))
  82                 {       sf_perror (NULL) ;
  83                         continue ;
  84                         } ;
  85
  86                 if (data.sfinfo.channels < 1 || data.sfinfo.channels > 2)
  87                 {       printf ("Error : channels = %d.\n", data.sfinfo.channels) ;
  88                         sf_close (data.sndfile) ;
  89                         continue ;
  90                         } ;
  91
  92                 data.finished = create_sem(0,"finished");
  93
  94                 media_raw_audio_format format =
  95                 {       data.sfinfo.samplerate,
  96                         data.sfinfo.channels,
  97                         media_raw_audio_format::B_AUDIO_SHORT,
  98                         B_HOST_IS_LENDIAN ? B_MEDIA_LITTLE_ENDIAN : B_MEDIA_BIG_ENDIAN,
  99                         BUFFER_LEN * sizeof(short)
 100                         };
 101
 102                 BSoundPlayer player(&format,"player",buffer_callback,NULL,&data);
 103                 data.player = &player;
 104
 105                 if ((status = player.InitCheck()) != B_OK)
 106                 {
 107                         printf ("Error : BSoundPlayer init failed, %s.\n", strerror(status)) ;
 108                         delete_sem(data.finished);
 109                         sf_close (data.sndfile) ;
 110                         continue ;
 111                         }
 112
 113                 player.SetVolume(1.0);
 114                 player.Start();
 115                 player.SetHasData(true);
 116                 acquire_sem(data.finished);
 117                 player.Stop();
 118                 delete_sem(data.finished);
 119
 120                 sf_close (data.sndfile) ;
 121
 122                 } ;
 123
 124 } /* beos_play */
 125
 126 #endif
 127
 128 /*==============================================================================
 129 **      Main function.
 130 */
 131
 132 int
 133 main (int argc, char *argv [])
 134 {
 135         if (argc < 2)
 136         {       printf ("Usage : %s <input sound file>\n\n", argv [0]) ;
 137                 return 1 ;
 138                 } ;
 139
 140         beos_play (argc, argv) ;
 141
 142         return 0 ;
 143 } /* main */
 144