apps/codec_thread.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 Miika Pekkarinen
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef _CODEC_THREAD_H
  23 #define _CODEC_THREAD_H
  24
  25 #include <stdbool.h>
  26
  27 /* codec identity */
  28 int get_codec_base_type(int type);
  29 const char *get_codec_filename(int cod_spec);
  30
  31 /* codec thread */
  32
  33 /* Audio MUST be stopped before requesting callback! */
  34 void codec_thread_do_callback(void (*fn)(void),
  35                               unsigned int *codec_thread_id);
  36
  37 void codec_init_codec_api(void);
  38 void make_codec_thread(void);
  39 void codec_thread_resume(void);
  40 bool is_codec_thread(void);
  41 #ifdef HAVE_PRIORITY_SCHEDULING
  42 int codec_thread_get_priority(void);
  43 int codec_thread_set_priority(int priority);
  44 #endif
  45
  46 /* codec commands - on audio thread only! */
  47 intptr_t codec_ack_msg(intptr_t data, bool stop_codec);
  48 bool codec_load(int hid, int cod_spec);
  49 void codec_stop(void);
  50 int codec_loaded(void);
  51 /* */
  52
  53 #endif /* _CODEC_THREAD_H */