player/audioplayer.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Sat, 13 Dec 2008 15:57:04 +0100
changeset 1 fd135abaac89
parent 0 06dd3b8d90ad
permissions -rw-r--r--
Troubleshooting: * See http://de.gentoo-wiki.com/Mbrola * txt2pho needs a config file -> ~/.txt2phorc or /etc/txt2pho committer: Markus Bröker <mbroeker@largo.homelinux.org>
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     1
/**
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     2
 *  $Id: audioplayer.c 53 2008-01-10 00:19:41Z mbroeker $
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     3
 * $URL: http://localhost/svn/c/VirtualReader/trunk/player/audioplayer.c $
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     4
 */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     5
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     6
#include <audioplayer.h>
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     7
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     8
typedef struct {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
     9
    SDL_AudioSpec spec;         // internal structure
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    10
    Uint8 *sound_buffer;        // malloced pointer from sdl
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    11
    Uint32 sound_pos;           // position
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    12
    Uint32 sound_len;           // length in bytes
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    13
    Uint32 length;              // Length in Milliseconds
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    14
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    15
    int opened;                 // bool opened
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    16
    int loaded;                 // bool loaded
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    17
    int verbose;                // verbose messages
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    18
    int timeout;                // timeout
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    19
    int timer;                  // bool timer
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    20
} AudioDevice;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    21
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    22
AudioDevice AD;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    23
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    24
int audio_init ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    25
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    26
    // initialize SDL for audio output
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    27
    if (SDL_Init (SDL_INIT_AUDIO) < 0) {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    28
        fprintf (stderr, "audio_init: Cannot initialize SDL-Subsystem\n");
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    29
        return -1;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    30
    }
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    31
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    32
    AD.sound_buffer = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    33
    AD.sound_pos = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    34
    AD.sound_len = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    35
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    36
    AD.opened = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    37
    AD.loaded = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    38
    AD.verbose = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    39
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    40
    AD.timeout = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    41
    AD.timer = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    42
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    43
    return 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    44
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    45
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    46
void audio_shutdown ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    47
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    48
    // quit sdl
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    49
    SDL_AudioQuit ();
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    50
    SDL_Quit ();
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    51
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    52
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    53
static void Callback (void *userdata, Uint8 * stream, int len)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    54
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    55
    Uint8 *waveptr = NULL;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    56
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    57
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    58
     *     loaded = 0 Segmentation fault
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    59
     *        len = 0 nothing to play
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    60
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    61
    if (!(AD.loaded && len))
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    62
        return;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    63
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    64
    waveptr = AD.sound_buffer + AD.sound_pos;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    65
    SDL_MixAudio (stream, waveptr, len, SDL_MIX_MAXVOLUME);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    66
    AD.sound_pos += len;        // bereits gespielt
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    67
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    68
    if (audioplayer_gettime () > (AD.length - AD.timeout)) {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    69
        AD.sound_pos = AD.length;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    70
        AD.sound_len = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    71
        AD.timer = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    72
    }
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    73
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    74
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    75
Uint32 audioplayer_getsoundlen ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    76
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    77
    return AD.sound_len;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    78
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    79
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    80
void audioplayer_media_info (char *fname)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    81
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    82
    AD.length = audioplayer_getwavelength (fname);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    83
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    84
    printf ("Playing %s: %d Hz, %d Bit Audio, %d Channel(s), %3.2d ms\n",
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    85
            fname, AD.spec.freq, audioplayer_getbitrate (), AD.spec.channels, AD.length);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    86
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    87
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    88
int audioplayer_getbitrate ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    89
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    90
    int bitrate = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    91
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    92
    switch (AD.spec.format) {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    93
    case AUDIO_U8:
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    94
    case AUDIO_S8:
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    95
        bitrate = 8;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    96
        break;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    97
    case AUDIO_S16LSB:
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    98
    case AUDIO_S16MSB:
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
    99
    case AUDIO_U16LSB:
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   100
    case AUDIO_U16MSB:
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   101
        bitrate = 16;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   102
        break;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   103
    }
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   104
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   105
    return bitrate;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   106
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   107
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   108
Uint32 audioplayer_getwavelength (char *fname)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   109
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   110
    struct stat info;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   111
    Uint32 value = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   112
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   113
    if (fname == NULL)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   114
        return AD.length;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   115
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   116
    if (stat (fname, &info) == 0)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   117
        /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   118
         * the value is really big, so be carefull
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   119
         * changes in the order result in different values
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   120
         * the storage type isn`t well choosen...
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   121
         */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   122
        value = ((info.st_size) / (AD.spec.freq * AD.spec.channels * (audioplayer_getbitrate () / 8.0)) * 1000.0);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   123
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   124
    return (value);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   125
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   126
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   127
Uint32 audioplayer_getposition ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   128
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   129
    return AD.sound_pos;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   130
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   131
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   132
Uint32 audioplayer_gettime ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   133
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   134
    Uint32 ret;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   135
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   136
    ret = AD.sound_pos / (AD.spec.freq * AD.spec.channels * (audioplayer_getbitrate () / 8.0)) * 1000.0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   137
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   138
    return ret;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   139
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   140
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   141
void audioplayer_settime (long tm)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   142
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   143
    AD.sound_pos = tm / 1000.0 * (AD.spec.freq * AD.spec.channels * (audioplayer_getbitrate () / 8.0));
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   144
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   145
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   146
     * Eine Adresse ...
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   147
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   148
    while ((AD.sound_pos % 2) != 0)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   149
        AD.sound_pos++;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   150
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   151
    if (AD.verbose)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   152
        printf ("\e[31m[ATTENTION]\e[37m [#%d/#%d] = %d ms\n", AD.sound_pos, AD.sound_len, audioplayer_gettime ());
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   153
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   154
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   155
void audioplayer_stop ()
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   156
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   157
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   158
     * stops the callback function
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   159
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   160
    SDL_PauseAudio (1);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   161
    AD.spec.callback = NULL;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   162
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   163
    if (AD.loaded == 1)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   164
        SDL_FreeWAV (AD.sound_buffer);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   165
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   166
    AD.loaded = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   167
    AD.timer = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   168
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   169
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   170
void audioplayer_delay (Uint32 milliseconds)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   171
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   172
    struct timespec tm;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   173
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   174
    tm.tv_sec = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   175
    tm.tv_nsec = milliseconds * 1000;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   176
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   177
    while (AD.timer)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   178
        nanosleep (&tm, NULL);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   179
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   180
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   181
void audioplayer_setverbose (int verbose)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   182
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   183
    AD.verbose = verbose;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   184
}
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   185
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   186
int audioplayer (char *fname, Uint32 timeout)
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   187
{
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   188
    if (SDL_LoadWAV (fname, &AD.spec, &AD.sound_buffer, &AD.sound_len) == NULL) {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   189
        printf ("SDL: %s\n", SDL_GetError ());
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   190
        return -1;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   191
    }
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   192
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   193
    AD.loaded = 1;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   194
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   195
    if (!AD.opened) {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   196
        AD.spec.callback = Callback;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   197
        if (SDL_OpenAudio (&AD.spec, NULL) < 0) {
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   198
            fprintf (stderr, "Cannot open audio device: %s\n", SDL_GetError ());
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   199
            return -1;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   200
        }
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   201
        AD.opened = 1;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   202
    }
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   203
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   204
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   205
     * calls implicitly getwavelength
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   206
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   207
    audioplayer_media_info (fname);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   208
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   209
    AD.sound_pos = 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   210
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   211
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   212
     * starts playback via Callback function
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   213
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   214
    SDL_PauseAudio (0);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   215
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   216
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   217
     * initializes the timeout mechanism
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   218
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   219
    AD.timer = 1;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   220
    AD.timeout = timeout;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   221
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   222
    /*
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   223
     * controlled delay
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   224
     */
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   225
    audioplayer_delay (timeout);
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   226
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   227
    return 0;
06dd3b8d90ad Virtual Reader
Markus Bröker <mbroeker@largo.dyndns.tv>
parents:
diff changeset
   228
}