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author | Michael Sevakis <jethead71@rockbox.org> | 2013-05-31 02:41:02 -0400 |
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committer | Michael Sevakis <jethead71@rockbox.org> | 2013-05-31 03:20:35 -0400 |
commit | 5857c44017a1641fce7f00da7f16c143daacbaf6 (patch) | |
tree | b8a7ff134977ee8dd6b25b5591f4eb81172f74ab /apps/audio_thread.h | |
parent | df6e1bcce5071e02b5cd46736bff87ca0dcceffe (diff) | |
download | rockbox-5857c44017a1641fce7f00da7f16c143daacbaf6.tar.gz rockbox-5857c44017a1641fce7f00da7f16c143daacbaf6.zip |
Refactor audio thread to run both recording and playback.
Eliminates the pcmrec thread and keeps playback and recording engine
operation mutually-exclusive.
audio_thread.c contains the audio thread which branches to the
correct engine depending upon the request. It also handles the main
audio initialization.
Moves pcm_init into main.c just before dsp_init because I don't want
that one in audio_init in the new file.
(Also makes revision df6e1bc pointless ;)
Change-Id: Ifc1db24404e6d8dd9ac42d9f4dfbc207aa9a26e1
Diffstat (limited to 'apps/audio_thread.h')
-rw-r--r-- | apps/audio_thread.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/apps/audio_thread.h b/apps/audio_thread.h new file mode 100644 index 0000000000..7e0ad28849 --- /dev/null +++ b/apps/audio_thread.h @@ -0,0 +1,102 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2005-2007 Miika Pekkarinen + * Copyright (C) 2007-2008 Nicolas Pennequin + * Copyright (C) 2011-2013 Michael Sevakis + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ +#ifndef AUDIO_THREAD_H +#define AUDIO_THREAD_H + +/* Define one constant that includes recording related functionality */ +#if defined(HAVE_RECORDING) && !defined(SIMULATOR) +#define AUDIO_HAVE_RECORDING +#endif + +enum +{ + Q_NULL = 0, /* reserved */ + + /* -> audio */ + Q_AUDIO_PLAY, + Q_AUDIO_STOP, + Q_AUDIO_PAUSE, + Q_AUDIO_SKIP, + Q_AUDIO_PRE_FF_REWIND, + Q_AUDIO_FF_REWIND, + Q_AUDIO_FLUSH, + Q_AUDIO_DIR_SKIP, + + /* pcmbuf -> audio */ + Q_AUDIO_TRACK_CHANGED, + + /* audio -> audio */ + Q_AUDIO_FILL_BUFFER, /* continue buffering next track */ + + /* buffering -> audio */ + Q_AUDIO_BUFFERING, /* some buffer event */ + Q_AUDIO_FINISH_LOAD_TRACK, /* metadata is buffered */ + Q_AUDIO_HANDLE_FINISHED, /* some other type is buffered */ + + /* codec -> audio (*) */ + Q_AUDIO_CODEC_SEEK_COMPLETE, + Q_AUDIO_CODEC_COMPLETE, + + /* audio -> codec */ + Q_CODEC_LOAD, + Q_CODEC_RUN, + Q_CODEC_PAUSE, + Q_CODEC_SEEK, + Q_CODEC_STOP, + Q_CODEC_UNLOAD, + + /* -> codec */ + Q_CODEC_DO_CALLBACK, + + /* -> recording */ +#ifdef HAVE_RECORDING + Q_AUDIO_INIT_RECORDING, + Q_AUDIO_CLOSE_RECORDING, + Q_AUDIO_RECORDING_OPTIONS, + Q_AUDIO_RECORD, + Q_AUDIO_RESUME, +#endif + + /*- settings -*/ + +#ifdef HAVE_DISK_STORAGE + /* -> audio */ + Q_AUDIO_UPDATE_WATERMARK, /* buffering watermark needs updating */ +#endif + /* -> audio */ + Q_AUDIO_REMAKE_AUDIO_BUFFER, /* buffer needs to be reinitialized */ +}; + +/* (*) If you change these, you must check audio_clear_track_notifications + in playback.c for correctness */ + +void audio_init(void); +void playback_init(void); +unsigned int playback_status(void); + +void audio_playback_handler(struct queue_event *ev); +#ifdef AUDIO_HAVE_RECORDING +void audio_recording_handler(struct queue_event *ev); +#endif + +#endif /* AUDIO_THREAD_H */ |