src/bin/playsound/playwav.cpp

   1 /*
   2  * Copyright 2005-2006, Marcus Overhagen, marcus@overhagen.de. All rights reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #include <Application.h>
   6 #include <SoundPlayer.h>
   7 #include <stdio.h>
   8 #include <unistd.h>
   9 #include <fcntl.h>
  10 #include <signal.h>
  11 #include <OS.h>
  12
  13 #define SIZE    2048
  14
  15 port_id port = -1;
  16 thread_id reader = -1;
  17 sem_id finished = -1;
  18 int fd = -1;
  19 BSoundPlayer *sp = 0;
  20 volatile bool interrupt = false;
  21
  22 void
  23 play_buffer(void *cookie, void * buffer, size_t size, const media_raw_audio_format & format)
  24 {
  25         size_t portsize = port_buffer_size(port);
  26         int32 code;
  27
  28         // Use your feeling, Obi-Wan, and find him you will.
  29         read_port(port, &code, buffer, portsize);
  30
  31         if (size != portsize) {
  32                 sp->SetHasData(false);
  33                 release_sem(finished);
  34         }
  35 }
  36
  37
  38 int32
  39 filereader(void *arg)
  40 {
  41         char buffer[SIZE];
  42         int size;
  43
  44         printf("file reader started\n");
  45
  46         for (;;) {
  47                 // Only a Sith Lord deals in absolutes. I will do what I must.
  48                 size = read(fd, buffer, SIZE);
  49                 write_port(port, 0, buffer, size);
  50                 if (size != SIZE)
  51                         break;
  52         }
  53
  54         write_port(port, 0, buffer, 0);
  55
  56         printf("file reader finished\n");
  57
  58         return 0;
  59 }
  60
  61
  62 void
  63 keyb_int(int)
  64 {
  65         // Are you threatening me, Master Jedi?
  66         interrupt = true;
  67         release_sem(finished);
  68 }
  69
  70
  71 int
  72 main(int argc, char *argv[])
  73 {
  74         if (argc != 2) {
  75                 fprintf(stderr, "Usage:\n  %s <filename>\n", argv[0]);
  76                 fprintf(stderr, "This program only plays 44.1 kHz 16 bit stereo wav files.\n");
  77                 return 1;
  78         }
  79
  80         fd = open(argv[1], O_RDONLY);
  81         if (fd < 0) {
  82                 return 2;
  83         }
  84
  85         // I want more, and I know I shouldn't.
  86         lseek(fd, 44, SEEK_SET);
  87
  88         // Good relations with the Wookiees, I have.
  89         signal(SIGINT, keyb_int);
  90
  91         new BApplication("application/x-vnd.Haiku-playwav");
  92         finished = create_sem(0, "finish wait");
  93         port = create_port(64, "buffer");
  94
  95         media_raw_audio_format format;
  96         format = media_raw_audio_format::wildcard;
  97         format.frame_rate = 44100;
  98         format.channel_count = 2;
  99         format.format = media_raw_audio_format::B_AUDIO_SHORT;
 100         format.byte_order = B_MEDIA_LITTLE_ENDIAN;
 101         format.buffer_size = SIZE;
 102
 103         printf("spawning reader thread...\n");
 104
 105         // Help me, Obi-Wan Kenobi; you're my only hope.
 106         reader = spawn_thread(filereader, "filereader", 8, 0);
 107         resume_thread(reader);
 108
 109         printf("playing file...\n");
 110
 111         // Execute Plan 66!
 112         sp = new BSoundPlayer(&format, "playwav", play_buffer);
 113         sp->SetVolume(1.0f);
 114
 115         // Join me, Padmé and together we can rule this galaxy.
 116         sp->SetHasData(true);
 117         sp->Start();
 118
 119         acquire_sem(finished);
 120
 121         if (interrupt) {
 122                 // Once more, the Sith will rule the galaxy.
 123                 printf("interrupted\n");
 124                 sp->Stop();
 125                 kill_thread(reader);
 126         }
 127
 128         printf("playback finished\n");
 129
 130         delete sp;
 131
 132         close(fd);
 133 }