210 lines
6.6 KiB
C
210 lines
6.6 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2005 by Linus Nielsen Feltzing
|
|
*
|
|
* 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_H
|
|
#define __AUDIO_H
|
|
|
|
#include <stdbool.h>
|
|
#include <string.h> /* size_t */
|
|
#include "config.h"
|
|
/* These must always be included with audio.h for this to compile under
|
|
cetain conditions. Do it here or else spread the complication around to
|
|
many files. */
|
|
#include "pcm_sampr.h"
|
|
#include "pcm.h"
|
|
#ifdef HAVE_RECORDING
|
|
#include "enc_base.h"
|
|
#endif /* HAVE_RECORDING */
|
|
|
|
#define AUDIO_STATUS_PLAY 0x0001
|
|
#define AUDIO_STATUS_PAUSE 0x0002
|
|
#define AUDIO_STATUS_RECORD 0x0004
|
|
#define AUDIO_STATUS_PRERECORD 0x0008
|
|
#define AUDIO_STATUS_ERROR 0x0010
|
|
#define AUDIO_STATUS_WARNING 0x0020
|
|
|
|
#define AUDIOERR_DISK_FULL 1
|
|
|
|
#define AUDIO_GAIN_LINEIN 0
|
|
#define AUDIO_GAIN_MIC 1
|
|
|
|
|
|
void audio_init(void) INIT_ATTR;
|
|
void audio_play(unsigned long elapsed, unsigned long offset);
|
|
void audio_stop(void);
|
|
/* Stops audio from serving playback and frees resources*/
|
|
void audio_hard_stop(void);
|
|
void audio_pause(void);
|
|
void audio_resume(void);
|
|
void audio_next(void);
|
|
void audio_prev(void);
|
|
int audio_status(void);
|
|
/* size of the audio buffer */
|
|
size_t audio_buffer_size(void);
|
|
/* size of the buffer available for allocating memory from the audio buffer using core_*()
|
|
* returns core_available() if audio buffer is not allocated yet */
|
|
size_t audio_buffer_available(void);
|
|
void audio_ff_rewind(long newpos);
|
|
void audio_flush_and_reload_tracks(void);
|
|
struct mp3entry* audio_current_track(void);
|
|
struct mp3entry* audio_next_track(void);
|
|
bool audio_peek_track(struct mp3entry* id3, int offset);
|
|
#ifdef HAVE_DISK_STORAGE
|
|
void audio_set_buffer_margin(int seconds);
|
|
#endif
|
|
void audio_error_clear(void);
|
|
int audio_get_file_pos(void);
|
|
void audio_beep(int duration);
|
|
|
|
void audio_next_dir(void);
|
|
void audio_prev_dir(void);
|
|
|
|
/* channel modes */
|
|
enum rec_channel_modes
|
|
{
|
|
__CHN_MODE_START_INDEX = -1,
|
|
|
|
CHN_MODE_STEREO,
|
|
CHN_MODE_MONO,
|
|
|
|
CHN_NUM_MODES
|
|
};
|
|
|
|
/* channel mode capability bits */
|
|
#define CHN_CAP_STEREO (1 << CHN_MODE_STEREO)
|
|
#define CHN_CAP_MONO (1 << CHN_MODE_MONO)
|
|
#define CHN_CAP_ALL (CHN_CAP_STEREO | CHN_CAP_MONO)
|
|
|
|
/* the enums below must match prestr[] in recording.c */
|
|
enum audio_sources
|
|
{
|
|
AUDIO_SRC_PLAYBACK = -1, /* Virtual source */
|
|
HAVE_MIC_IN_(AUDIO_SRC_MIC,)
|
|
HAVE_LINE_IN_(AUDIO_SRC_LINEIN,)
|
|
HAVE_SPDIF_IN_(AUDIO_SRC_SPDIF,)
|
|
HAVE_FMRADIO_IN_(AUDIO_SRC_FMRADIO,)
|
|
AUDIO_NUM_SOURCES,
|
|
AUDIO_SRC_MAX = AUDIO_NUM_SOURCES-1,
|
|
AUDIO_SRC_DEFAULT = AUDIO_SRC_PLAYBACK
|
|
};
|
|
|
|
extern int audio_channels;
|
|
extern int audio_output_source;
|
|
|
|
#ifdef HAVE_RECORDING
|
|
/* Recordable source implies it has the input as well */
|
|
|
|
/* For now there's no restrictions on any targets with which inputs
|
|
are recordable so define them as equivalent - if they do differ,
|
|
special handling is needed right now. */
|
|
enum rec_sources
|
|
{
|
|
__REC_SRC_FIRST = -1,
|
|
HAVE_MIC_REC_(REC_SRC_MIC,)
|
|
HAVE_LINE_REC_(REC_SRC_LINEIN,)
|
|
HAVE_SPDIF_REC_(REC_SRC_SPDIF,)
|
|
HAVE_FMRADIO_REC_(REC_SRC_FMRADIO,)
|
|
REC_NUM_SOURCES
|
|
};
|
|
#endif /* HAVE_RECORDING */
|
|
|
|
/* selects a source to monitor for recording or playback */
|
|
#define SRCF_PLAYBACK 0x0000 /* default */
|
|
#define SRCF_RECORDING 0x1000
|
|
#if CONFIG_TUNER
|
|
/* for AUDIO_SRC_FMRADIO */
|
|
#define SRCF_FMRADIO_PLAYING 0x0000 /* default */
|
|
#define SRCF_FMRADIO_PAUSED 0x2000
|
|
#endif
|
|
|
|
#ifdef HAVE_RECORDING
|
|
/* parameters for audio_set_recording_options */
|
|
struct audio_recording_options
|
|
{
|
|
int rec_source;
|
|
int rec_frequency;
|
|
int rec_channels;
|
|
int rec_prerecord_time;
|
|
int rec_mono_mode;
|
|
int rec_source_flags; /* for rec_set_source */
|
|
struct encoder_config enc_config;
|
|
};
|
|
|
|
/* audio recording functions */
|
|
void audio_init_recording(void);
|
|
void audio_close_recording(void);
|
|
void audio_record(const char *filename);
|
|
void audio_stop_recording(void);
|
|
void audio_pause_recording(void);
|
|
void audio_resume_recording(void);
|
|
void audio_new_file(const char *filename);
|
|
void audio_set_recording_options(struct audio_recording_options *options);
|
|
void audio_set_recording_gain(int left, int right, int type);
|
|
unsigned long audio_recorded_time(void);
|
|
unsigned long audio_num_recorded_bytes(void);
|
|
|
|
unsigned long audio_prerecorded_time(void);
|
|
|
|
#endif /* HAVE_RECORDING */
|
|
|
|
#if INPUT_SRC_CAPS != 0
|
|
/* audio.c */
|
|
void audio_set_input_source(int source, unsigned flags);
|
|
/* audio_input_mux: target-specific implementation used by audio_set_source
|
|
to set hardware inputs and audio paths */
|
|
void audio_input_mux(int source, unsigned flags);
|
|
void audio_set_output_source(int source);
|
|
#endif /* INPUT_SRC_CAPS */
|
|
|
|
#ifdef HAVE_SPDIF_IN
|
|
/* returns index into rec_master_sampr_list */
|
|
int audio_get_spdif_sample_rate(void);
|
|
/* > 0: monitor EBUin, 0: Monitor IISrecv, <0: reset only */
|
|
void audio_spdif_set_monitor(int monitor_spdif);
|
|
#endif /* HAVE_SPDIF_IN */
|
|
|
|
#ifdef HAVE_SPEAKER
|
|
/* enable/disable the speaker: 0=off, 1=on, 2=on if jack unpluged, off otherwise
|
|
* NOTE this is a one time thing, this function doesn't implement the logic to
|
|
* check for jack events, it merely changes the speaker state to the expected
|
|
* state based on the requested mode.
|
|
*/
|
|
void audio_enable_speaker(int mode);
|
|
#endif
|
|
|
|
/***********************************************************************/
|
|
/* audio event handling */
|
|
enum track_event_flags
|
|
{
|
|
TEF_NONE = 0x0, /* no flags are set */
|
|
TEF_CURRENT = 0x1, /* event is for the current track */
|
|
TEF_AUTO_SKIP = 0x2, /* event is sent in context of auto skip */
|
|
TEF_REWIND = 0x4, /* interpret as rewind, id3->elapsed is the
|
|
position before the seek back to 0 */
|
|
};
|
|
|
|
struct track_event
|
|
{
|
|
unsigned int flags; /* combo of enum track_event_flags values */
|
|
struct mp3entry *id3; /* pointer to mp3entry describing track */
|
|
};
|
|
|
|
#endif /* __AUDIO_H */
|