apps/playback.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 Miika Pekkarinen
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19
  20 #ifndef _PLAYBACK_H
  21 #define _PLAYBACK_H
  22
  23 #include <stdlib.h>
  24 #include <ctype.h>
  25 #include <stdbool.h>
  26
  27 #include "id3.h"
  28 #include "mp3data.h"
  29
  30 #define CODEC_IDX_AUDIO  0
  31 #define CODEC_IDX_VOICE  1
  32
  33 /* Not yet implemented. */
  34 #define CODEC_SET_AUDIOBUF_WATERMARK    4
  35
  36 #define MAX_TRACK 32
  37 struct track_info {
  38     struct mp3entry id3;     /* TAG metadata */
  39     char *codecbuf;          /* Pointer to codec buffer */
  40     long codecsize;        /* Codec length in bytes */
  41
  42     off_t filerem;           /* Remaining bytes of file NOT in buffer */
  43     off_t filesize;          /* File total length */
  44     off_t filepos;           /* Read position of file for next buffer fill */
  45     off_t start_pos;         /* Position to first bytes of file in buffer */
  46     volatile int available;  /* Available bytes to read from buffer */
  47     bool taginfo_ready;      /* Is metadata read */
  48     int playlist_offset;     /* File location in playlist */
  49     bool event_sent;         /* Has event callback functions been called? */
  50 };
  51
  52 /* Functions */
  53 void audio_set_track_changed_event(void (*handler)(struct mp3entry *id3));
  54 void audio_set_track_buffer_event(void (*handler)(struct mp3entry *id3,
  55                                                   bool last_track));
  56 void audio_set_track_unbuffer_event(void (*handler)(struct mp3entry *id3,
  57                                                    bool last_track));
  58 void audio_invalidate_tracks(void);
  59 void voice_init(void);
  60
  61 extern void audio_next_dir(void);
  62 extern void audio_prev_dir(void);
  63
  64 void audio_preinit(void);
  65
  66 #endif
  67
  68