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 #if MEM > 1
  37 #define MAX_TRACK       32
  38 #else
  39 #define MAX_TRACK       8
  40 #endif
  41
  42 #define MAX_TRACK_MASK  (MAX_TRACK-1)
  43
  44 struct track_info {
  45     struct mp3entry id3;       /* TAG metadata */
  46     char *codecbuf;            /* Pointer to codec buffer */
  47     size_t codecsize;          /* Codec length in bytes */
  48     bool has_codec;            /* Does this track have a codec on the buffer */
  49
  50     size_t buf_idx;            /* Pointer to the track's buffer */
  51     size_t filerem;            /* Remaining bytes of file NOT in buffer */
  52     size_t filesize;           /* File total length */
  53     size_t start_pos;          /* Position to first bytes of file in buffer */
  54     volatile size_t available; /* Available bytes to read from buffer */
  55
  56     bool taginfo_ready;        /* Is metadata read */
  57
  58     bool event_sent;           /* Was this track's buffered event sent */
  59 };
  60
  61 /* Functions */
  62 void audio_set_track_changed_event(void (*handler)(struct mp3entry *id3));
  63 void audio_set_track_buffer_event(void (*handler)(struct mp3entry *id3,
  64                                                   bool last_track));
  65 void audio_set_track_unbuffer_event(void (*handler)(struct mp3entry *id3,
  66                                                    bool last_track));
  67
  68 #if CONFIG_CODEC == SWCODEC /* This #ifdef is better here than gui/gwps.c */
  69 extern void audio_next_dir(void);
  70 extern void audio_prev_dir(void);
  71 #else
  72 #define audio_next_dir()
  73 #define audio_prev_dir()
  74 #endif
  75
  76 #endif
  77
  78