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 <stdbool.h>
  24
  25 #include "id3.h"
  26 #include "mp3data.h"
  27
  28 #define CODEC_IDX_AUDIO     0
  29 #define CODEC_IDX_VOICE     1
  30
  31 /* Not yet implemented. */
  32 #define CODEC_SET_AUDIOBUF_WATERMARK    4
  33
  34 #if MEM > 1
  35 #define MAX_TRACK       32
  36 #else
  37 #define MAX_TRACK       8
  38 #endif
  39
  40 #define MAX_TRACK_MASK  (MAX_TRACK-1)
  41
  42 struct track_info {
  43     struct mp3entry id3;       /* TAG metadata */
  44     char *codecbuf;            /* Pointer to codec buffer */
  45     size_t codecsize;          /* Codec length in bytes */
  46     bool has_codec;            /* Does this track have a codec on the buffer */
  47
  48     size_t buf_idx;            /* Pointer to the track's buffer */
  49     size_t filerem;            /* Remaining bytes of file NOT in buffer */
  50     size_t filesize;           /* File total length */
  51     size_t start_pos;          /* Position to first bytes of file in buffer */
  52     volatile size_t available; /* Available bytes to read from buffer */
  53
  54     bool taginfo_ready;        /* Is metadata read */
  55
  56     bool event_sent;           /* Was this track's buffered event sent */
  57 };
  58
  59 /* Functions */
  60 const char * get_codec_filename(int cod_spec);
  61 void audio_set_track_changed_event(void (*handler)(struct mp3entry *id3));
  62 void audio_set_track_buffer_event(void (*handler)(struct mp3entry *id3,
  63                                                   bool last_track));
  64 void audio_set_track_unbuffer_event(void (*handler)(struct mp3entry *id3,
  65                                                    bool last_track));
  66
  67 #if CONFIG_CODEC == SWCODEC /* This #ifdef is better here than gui/gwps.c */
  68 extern void audio_next_dir(void);
  69 extern void audio_prev_dir(void);
  70 #else
  71 #define audio_next_dir()
  72 #define audio_prev_dir()
  73 #endif
  74
  75 #endif
  76
  77