8cb555460f
'swcodec' is now always set (and recording_swcodec for recording-capable units) in feature.txt so the manual and language strings don't need to all be fixed up. Change-Id: Ib2c9d5d157af8d33653e2d4b4a12881b9aa6ddb0
209 lines
6.6 KiB
C
209 lines
6.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 by Linus Nielsen Feltzing
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __AUDIO_H
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#define __AUDIO_H
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#include <stdbool.h>
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#include <string.h> /* size_t */
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#include "config.h"
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/* These must always be included with audio.h for this to compile under
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cetain conditions. Do it here or else spread the complication around to
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many files. */
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#include "pcm_sampr.h"
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#include "pcm.h"
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#ifdef HAVE_RECORDING
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#include "enc_base.h"
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#endif /* HAVE_RECORDING */
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#define AUDIO_STATUS_PLAY 0x0001
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#define AUDIO_STATUS_PAUSE 0x0002
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#define AUDIO_STATUS_RECORD 0x0004
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#define AUDIO_STATUS_PRERECORD 0x0008
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#define AUDIO_STATUS_ERROR 0x0010
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#define AUDIO_STATUS_WARNING 0x0020
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#define AUDIOERR_DISK_FULL 1
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#define AUDIO_GAIN_LINEIN 0
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#define AUDIO_GAIN_MIC 1
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void audio_init(void) INIT_ATTR;
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void audio_play(unsigned long elapsed, unsigned long offset);
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void audio_stop(void);
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/* Stops audio from serving playback and frees resources*/
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void audio_hard_stop(void);
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void audio_pause(void);
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void audio_resume(void);
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void audio_next(void);
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void audio_prev(void);
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int audio_status(void);
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/* size of the audio buffer */
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size_t audio_buffer_size(void);
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/* size of the buffer available for allocating memory from the audio buffer using core_*()
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* returns core_available() if audio buffer is not allocated yet */
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size_t audio_buffer_available(void);
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void audio_ff_rewind(long newpos);
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void audio_flush_and_reload_tracks(void);
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struct mp3entry* audio_current_track(void);
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struct mp3entry* audio_next_track(void);
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bool audio_peek_track(struct mp3entry* id3, int offset);
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#ifdef HAVE_DISK_STORAGE
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void audio_set_buffer_margin(int seconds);
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#endif
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void audio_error_clear(void);
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int audio_get_file_pos(void);
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void audio_beep(int duration);
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void audio_next_dir(void);
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void audio_prev_dir(void);
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/* channel modes */
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enum rec_channel_modes
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{
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__CHN_MODE_START_INDEX = -1,
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CHN_MODE_STEREO,
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CHN_MODE_MONO,
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CHN_NUM_MODES
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};
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/* channel mode capability bits */
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#define CHN_CAP_STEREO (1 << CHN_MODE_STEREO)
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#define CHN_CAP_MONO (1 << CHN_MODE_MONO)
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#define CHN_CAP_ALL (CHN_CAP_STEREO | CHN_CAP_MONO)
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/* the enums below must match prestr[] in recording.c */
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enum audio_sources
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{
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AUDIO_SRC_PLAYBACK = -1, /* Virtual source */
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HAVE_MIC_IN_(AUDIO_SRC_MIC,)
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HAVE_LINE_IN_(AUDIO_SRC_LINEIN,)
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HAVE_SPDIF_IN_(AUDIO_SRC_SPDIF,)
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HAVE_FMRADIO_IN_(AUDIO_SRC_FMRADIO,)
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AUDIO_NUM_SOURCES,
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AUDIO_SRC_MAX = AUDIO_NUM_SOURCES-1,
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AUDIO_SRC_DEFAULT = AUDIO_SRC_PLAYBACK
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};
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extern int audio_channels;
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extern int audio_output_source;
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#ifdef HAVE_RECORDING
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/* Recordable source implies it has the input as well */
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/* For now there's no restrictions on any targets with which inputs
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are recordable so define them as equivalent - if they do differ,
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special handling is needed right now. */
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enum rec_sources
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{
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__REC_SRC_FIRST = -1,
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HAVE_MIC_REC_(REC_SRC_MIC,)
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HAVE_LINE_REC_(REC_SRC_LINEIN,)
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HAVE_SPDIF_REC_(REC_SRC_SPDIF,)
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HAVE_FMRADIO_REC_(REC_SRC_FMRADIO,)
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REC_NUM_SOURCES
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};
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#endif /* HAVE_RECORDING */
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/* selects a source to monitor for recording or playback */
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#define SRCF_PLAYBACK 0x0000 /* default */
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#define SRCF_RECORDING 0x1000
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#if CONFIG_TUNER
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/* for AUDIO_SRC_FMRADIO */
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#define SRCF_FMRADIO_PLAYING 0x0000 /* default */
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#define SRCF_FMRADIO_PAUSED 0x2000
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#endif
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#ifdef HAVE_RECORDING
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/* parameters for audio_set_recording_options */
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struct audio_recording_options
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{
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int rec_source;
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int rec_frequency;
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int rec_channels;
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int rec_prerecord_time;
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int rec_mono_mode;
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int rec_source_flags; /* for rec_set_source */
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struct encoder_config enc_config;
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};
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/* audio recording functions */
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void audio_init_recording(void);
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void audio_close_recording(void);
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void audio_record(const char *filename);
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void audio_stop_recording(void);
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void audio_pause_recording(void);
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void audio_resume_recording(void);
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void audio_new_file(const char *filename);
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void audio_set_recording_options(struct audio_recording_options *options);
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void audio_set_recording_gain(int left, int right, int type);
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unsigned long audio_recorded_time(void);
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unsigned long audio_num_recorded_bytes(void);
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unsigned long audio_prerecorded_time(void);
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#endif /* HAVE_RECORDING */
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#if INPUT_SRC_CAPS != 0
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/* audio.c */
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void audio_set_input_source(int source, unsigned flags);
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/* audio_input_mux: target-specific implementation used by audio_set_source
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to set hardware inputs and audio paths */
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void audio_input_mux(int source, unsigned flags);
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void audio_set_output_source(int source);
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#endif /* INPUT_SRC_CAPS */
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#ifdef HAVE_SPDIF_IN
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/* returns index into rec_master_sampr_list */
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int audio_get_spdif_sample_rate(void);
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/* > 0: monitor EBUin, 0: Monitor IISrecv, <0: reset only */
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void audio_spdif_set_monitor(int monitor_spdif);
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#endif /* HAVE_SPDIF_IN */
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#ifdef HAVE_SPEAKER
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/* enable/disable the speaker: 0=off, 1=on, 2=on if jack unpluged, off otherwise
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* NOTE this is a one time thing, this function doesn't implement the logic to
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* check for jack events, it merely changes the speaker state to the expected
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* state based on the requested mode.
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*/
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void audio_enable_speaker(int mode);
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#endif
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/***********************************************************************/
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/* audio event handling */
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enum track_event_flags
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{
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TEF_NONE = 0x0, /* no flags are set */
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TEF_CURRENT = 0x1, /* event is for the current track */
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TEF_AUTO_SKIP = 0x2, /* event is sent in context of auto skip */
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TEF_REWIND = 0x4, /* interpret as rewind, id3->elapsed is the
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position before the seek back to 0 */
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};
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struct track_event
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{
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unsigned int flags; /* combo of enum track_event_flags values */
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struct mp3entry *id3; /* pointer to mp3entry describing track */
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};
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#endif /* __AUDIO_H */
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