9558c4956d
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18807 a1c6a512-1295-4272-9138-f99709370657
271 lines
8.5 KiB
C
271 lines
8.5 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 <sys/types.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. */
|
|
#if CONFIG_CODEC == SWCODEC
|
|
#include "pcm_sampr.h"
|
|
#include "pcm.h"
|
|
#ifdef HAVE_RECORDING
|
|
#include "enc_base.h"
|
|
#endif /* HAVE_RECORDING */
|
|
#endif /* CONFIG_CODEC == SWCODEC */
|
|
|
|
|
|
#ifdef SIMULATOR
|
|
#define audio_play(x) sim_audio_play(x)
|
|
#endif
|
|
|
|
#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
|
|
|
|
|
|
struct audio_debug
|
|
{
|
|
int audiobuflen;
|
|
int audiobuf_write;
|
|
int audiobuf_swapwrite;
|
|
int audiobuf_read;
|
|
|
|
int last_dma_chunk_size;
|
|
|
|
bool dma_on;
|
|
bool playing;
|
|
bool play_pending;
|
|
bool is_playing;
|
|
bool filling;
|
|
bool dma_underrun;
|
|
|
|
int unplayed_space;
|
|
int playable_space;
|
|
int unswapped_space;
|
|
|
|
int low_watermark_level;
|
|
int lowest_watermark_level;
|
|
};
|
|
|
|
void audio_init(void);
|
|
void audio_play(long offset);
|
|
void audio_stop(void);
|
|
void audio_pause(void);
|
|
void audio_resume(void);
|
|
void audio_next(void);
|
|
void audio_prev(void);
|
|
int audio_status(void);
|
|
void audio_ff_rewind(long newtime);
|
|
void audio_flush_and_reload_tracks(void);
|
|
struct mp3entry* audio_current_track(void);
|
|
struct mp3entry* audio_next_track(void);
|
|
bool audio_has_changed_track(void);
|
|
void audio_get_debugdata(struct audio_debug *dbgdata);
|
|
#ifdef HAVE_DISK_STORAGE
|
|
void audio_set_buffer_margin(int seconds);
|
|
#endif
|
|
unsigned int audio_error(void);
|
|
void audio_error_clear(void);
|
|
int audio_get_file_pos(void);
|
|
void audio_beep(int duration);
|
|
void audio_init_playback(void);
|
|
|
|
/* Required call when audio buffer is required for some other purpose */
|
|
unsigned char *audio_get_buffer(bool talk_buf, size_t *buffer_size);
|
|
/* only implemented in playback.c, but called from firmware */
|
|
|
|
/* channel modes */
|
|
enum rec_channel_modes
|
|
{
|
|
__CHN_MODE_START_INDEX = -1,
|
|
|
|
CHN_MODE_STEREO,
|
|
CHN_MODE_MONO,
|
|
|
|
CHN_NUM_MODES
|
|
};
|
|
|
|
#if CONFIG_CODEC == SWCODEC
|
|
/* 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)
|
|
#endif /* CONFIG_CODEC == SWCODEC */
|
|
|
|
/* 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 */
|
|
|
|
#if CONFIG_CODEC == SWCODEC
|
|
/* 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
|
|
#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;
|
|
#if CONFIG_CODEC == SWCODEC
|
|
int rec_mono_mode;
|
|
int rec_source_flags; /* for rec_set_source */
|
|
struct encoder_config enc_config;
|
|
#else
|
|
int rec_quality;
|
|
bool rec_editable;
|
|
#endif
|
|
};
|
|
|
|
/* audio recording functions */
|
|
void audio_init_recording(unsigned int buffer_offset);
|
|
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);
|
|
|
|
#if CONFIG_CODEC == SWCODEC
|
|
/* SWCODEC recording functions */
|
|
/* playback.c */
|
|
bool audio_load_encoder(int afmt);
|
|
void audio_remove_encoder(void);
|
|
unsigned char *audio_get_recording_buffer(size_t *buffer_size);
|
|
#endif /* CONFIG_CODEC == SWCODEC */
|
|
|
|
#endif /* HAVE_RECORDING */
|
|
|
|
#if CONFIG_CODEC == SWCODEC
|
|
/* SWCODEC misc. audio functions */
|
|
#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 */
|
|
#endif /* CONFIG_CODEC == SWCODEC */
|
|
|
|
#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 */
|
|
|
|
unsigned long audio_prev_elapsed(void);
|
|
|
|
|
|
/***********************************************************************/
|
|
/* audio event handling */
|
|
|
|
/* subscribe to one or more audio event(s) by OR'ing together the desired */
|
|
/* event IDs (defined below); a handler is called with a solitary event ID */
|
|
/* (so switch() is okay) and possibly some useful data (depending on the */
|
|
/* event); a handler must return one of the return codes defined below */
|
|
|
|
typedef int (*AUDIO_EVENT_HANDLER)(unsigned short event, unsigned long data);
|
|
|
|
void audio_register_event_handler(AUDIO_EVENT_HANDLER handler, unsigned short mask);
|
|
|
|
/***********************************************************************/
|
|
/* handler return codes */
|
|
|
|
#define AUDIO_EVENT_RC_IGNORED 200
|
|
/* indicates that no action was taken or the event was not recognized */
|
|
|
|
#define AUDIO_EVENT_RC_HANDLED 201
|
|
/* indicates that the event was handled and some action was taken which renders
|
|
the original event invalid; USE WITH CARE!; this return code aborts all further
|
|
processing of the given event */
|
|
|
|
/***********************************************************************/
|
|
/* audio event IDs */
|
|
|
|
#define AUDIO_EVENT_POS_REPORT (1<<0)
|
|
/* sends a periodic song position report to handlers; a report is sent on
|
|
each kernal tick; the number of ticks per second is defined by HZ; on each
|
|
report the current song position is passed in 'data'; if a handler takes an
|
|
action that changes the song or the song position it must return
|
|
AUDIO_EVENT_RC_HANDLED which suppresses the event for any remaining handlers */
|
|
|
|
#define AUDIO_EVENT_END_OF_TRACK (1<<1)
|
|
/* generated when the end of the currently playing track is reached; no
|
|
data is passed; if the handler implements some alternate end-of-track
|
|
processing it should return AUDIO_EVENT_RC_HANDLED which suppresses the
|
|
event for any remaining handlers as well as the normal end-of-track
|
|
processing */
|
|
|
|
#endif
|