9d4bed7ff0
The cover pictures are loaded from external bitmaps. JPEG and embedded art are not supported. The pictures will only be drawn on the main display. There is no resizing but it is possible to specify the WPS bitmap size in the bitmap names (e.g. cover.100x100.bmp). The bitmaps are stored in the main buffer and read directly from there. Currently, duplicate bitmaps will simply be present several times in the buffer, but this will be improved. To enable for a target, #define HAVE_ALBUMART in its config file. For more information, see the wiki page: http://www.rockbox.org/wiki/AlbumArt. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15572 a1c6a512-1295-4272-9138-f99709370657
281 lines
8.8 KiB
C
281 lines
8.8 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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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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 <sys/types.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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#if CONFIG_CODEC == SWCODEC
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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 "pcm_record.h"
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#include "id3.h"
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#include "enc_base.h"
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#endif /* HAVE_RECORDING */
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#endif /* CONFIG_CODEC == SWCODEC */
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#ifdef SIMULATOR
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#define audio_play(x) sim_audio_play(x)
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#endif
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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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struct audio_debug
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{
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int audiobuflen;
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int audiobuf_write;
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int audiobuf_swapwrite;
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int audiobuf_read;
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int last_dma_chunk_size;
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bool dma_on;
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bool playing;
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bool play_pending;
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bool is_playing;
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bool filling;
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bool dma_underrun;
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int unplayed_space;
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int playable_space;
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int unswapped_space;
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int low_watermark_level;
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int lowest_watermark_level;
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};
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void audio_init(void);
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void audio_play(long offset);
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void audio_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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#if CONFIG_CODEC == SWCODEC
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int audio_track_count(void); /* SWCODEC only */
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long audio_filebufused(void); /* SWCODEC only */
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void audio_pre_ff_rewind(void); /* SWCODEC only */
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#endif /* CONFIG_CODEC == SWCODEC */
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void audio_ff_rewind(long newtime);
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void audio_flush_and_reload_tracks(void);
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#ifdef HAVE_ALBUMART
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int audio_current_aa_hid(void);
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#endif
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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_has_changed_track(void);
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void audio_get_debugdata(struct audio_debug *dbgdata);
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void audio_set_crossfade(int type);
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#ifndef HAVE_FLASH_STORAGE
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void audio_set_buffer_margin(int seconds);
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#endif
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unsigned int audio_error(void);
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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_init_playback(void);
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/* Required call when audio buffer is require for some other purpose */
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unsigned char *audio_get_buffer(bool talk_buf, size_t *buffer_size);
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#ifdef IRAM_STEAL
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/* Required call when codec IRAM is needed for some other purpose */
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void audio_iram_steal(void);
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#endif
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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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#if CONFIG_CODEC == SWCODEC
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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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#endif /* CONFIG_CODEC == SWCODEC */
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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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#if CONFIG_CODEC == SWCODEC
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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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#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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#if CONFIG_CODEC == SWCODEC
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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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#else
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int rec_quality;
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bool rec_editable;
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#endif
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};
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/* audio recording functions */
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void audio_init_recording(unsigned int buffer_offset);
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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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#if CONFIG_CODEC == SWCODEC
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/* SWCODEC recoring functions */
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/* playback.c */
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bool audio_load_encoder(int afmt);
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void audio_remove_encoder(void);
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unsigned char *audio_get_recording_buffer(size_t *buffer_size);
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#endif /* CONFIG_CODEC == SWCODEC */
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#endif /* HAVE_RECORDING */
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#if CONFIG_CODEC == SWCODEC
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/* SWCODEC misc. audio functions */
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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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#endif /* CONFIG_CODEC == SWCODEC */
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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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unsigned long audio_prev_elapsed(void);
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/***********************************************************************/
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/* audio event handling */
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/* subscribe to one or more audio event(s) by OR'ing together the desired */
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/* event IDs (defined below); a handler is called with a solitary event ID */
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/* (so switch() is okay) and possibly some useful data (depending on the */
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/* event); a handler must return one of the return codes defined below */
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typedef int (*AUDIO_EVENT_HANDLER)(unsigned short event, unsigned long data);
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void audio_register_event_handler(AUDIO_EVENT_HANDLER handler, unsigned short mask);
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/***********************************************************************/
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/* handler return codes */
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#define AUDIO_EVENT_RC_IGNORED 200
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/* indicates that no action was taken or the event was not recognized */
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#define AUDIO_EVENT_RC_HANDLED 201
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/* indicates that the event was handled and some action was taken which renders
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the original event invalid; USE WITH CARE!; this return code aborts all further
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processing of the given event */
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/***********************************************************************/
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/* audio event IDs */
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#define AUDIO_EVENT_POS_REPORT (1<<0)
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/* sends a periodic song position report to handlers; a report is sent on
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each kernal tick; the number of ticks per second is defined by HZ; on each
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report the current song position is passed in 'data'; if a handler takes an
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action that changes the song or the song position it must return
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AUDIO_EVENT_RC_HANDLED which suppresses the event for any remaining handlers */
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#define AUDIO_EVENT_END_OF_TRACK (1<<1)
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/* generated when the end of the currently playing track is reached; no
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data is passed; if the handler implements some alternate end-of-track
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processing it should return AUDIO_EVENT_RC_HANDLED which suppresses the
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event for any remaining handlers as well as the normal end-of-track
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processing */
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#endif
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