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/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* Common data structures and functions used by FLAC and OggFLAC
*/
#ifndef MPD_FLAC_COMMON_H
#define MPD_FLAC_COMMON_H
#include "decoder_api.h"
#include "pcm_buffer.h"
#include "config.h"
#include <glib.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "flac"
#include <FLAC/export.h>
#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
# include <FLAC/seekable_stream_decoder.h>
# define flac_decoder FLAC__SeekableStreamDecoder
# define flac_new() FLAC__seekable_stream_decoder_new()
# define flac_ogg_init(a,b,c,d,e,f,g,h,i,j) (0)
# define flac_get_decode_position(x,y) \
FLAC__seekable_stream_decoder_get_decode_position(x,y)
# define flac_get_state(x) FLAC__seekable_stream_decoder_get_state(x)
# define flac_process_single(x) FLAC__seekable_stream_decoder_process_single(x)
# define flac_process_metadata(x) \
FLAC__seekable_stream_decoder_process_until_end_of_metadata(x)
# define flac_seek_absolute(x,y) \
FLAC__seekable_stream_decoder_seek_absolute(x,y)
# define flac_finish(x) FLAC__seekable_stream_decoder_finish(x)
# define flac_delete(x) FLAC__seekable_stream_decoder_delete(x)
# define flac_decoder_eof FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM
typedef unsigned flac_read_status_size_t;
# define flac_read_status FLAC__SeekableStreamDecoderReadStatus
# define flac_read_status_continue \
FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK
# define flac_read_status_eof FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK
# define flac_read_status_abort \
FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR
# define flac_seek_status FLAC__SeekableStreamDecoderSeekStatus
# define flac_seek_status_ok FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK
# define flac_seek_status_error FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR
# define flac_tell_status FLAC__SeekableStreamDecoderTellStatus
# define flac_tell_status_ok FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK
# define flac_tell_status_error \
FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR
# define flac_tell_status_unsupported \
FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR
# define flac_length_status FLAC__SeekableStreamDecoderLengthStatus
# define flac_length_status_ok FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK
# define flac_length_status_error \
FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR
# define flac_length_status_unsupported \
FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR
# ifdef HAVE_OGGFLAC
# include <OggFLAC/seekable_stream_decoder.h>
# endif
#else /* FLAC_API_VERSION_CURRENT > 7 */
/*
* OggFLAC support is handled by our flac_plugin already, and
* thus we *can* always have it if libFLAC was compiled with it
*/
# include "_ogg_common.h"
# include <FLAC/stream_decoder.h>
# define flac_decoder FLAC__StreamDecoder
# define flac_new() FLAC__stream_decoder_new()
# define flac_init(a,b,c,d,e,f,g,h,i,j) \
(FLAC__stream_decoder_init_stream(a,b,c,d,e,f,g,h,i,j) \
== FLAC__STREAM_DECODER_INIT_STATUS_OK)
# define flac_ogg_init(a,b,c,d,e,f,g,h,i,j) \
(FLAC__stream_decoder_init_ogg_stream(a,b,c,d,e,f,g,h,i,j) \
== FLAC__STREAM_DECODER_INIT_STATUS_OK)
# define flac_get_decode_position(x,y) \
FLAC__stream_decoder_get_decode_position(x,y)
# define flac_get_state(x) FLAC__stream_decoder_get_state(x)
# define flac_process_single(x) FLAC__stream_decoder_process_single(x)
# define flac_process_metadata(x) \
FLAC__stream_decoder_process_until_end_of_metadata(x)
# define flac_seek_absolute(x,y) FLAC__stream_decoder_seek_absolute(x,y)
# define flac_finish(x) FLAC__stream_decoder_finish(x)
# define flac_delete(x) FLAC__stream_decoder_delete(x)
# define flac_decoder_eof FLAC__STREAM_DECODER_END_OF_STREAM
typedef size_t flac_read_status_size_t;
# define flac_read_status FLAC__StreamDecoderReadStatus
# define flac_read_status_continue \
FLAC__STREAM_DECODER_READ_STATUS_CONTINUE
# define flac_read_status_eof FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM
# define flac_read_status_abort FLAC__STREAM_DECODER_READ_STATUS_ABORT
# define flac_seek_status FLAC__StreamDecoderSeekStatus
# define flac_seek_status_ok FLAC__STREAM_DECODER_SEEK_STATUS_OK
# define flac_seek_status_error FLAC__STREAM_DECODER_SEEK_STATUS_ERROR
# define flac_seek_status_unsupported \
FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
# define flac_tell_status FLAC__StreamDecoderTellStatus
# define flac_tell_status_ok FLAC__STREAM_DECODER_TELL_STATUS_OK
# define flac_tell_status_error FLAC__STREAM_DECODER_TELL_STATUS_ERROR
# define flac_tell_status_unsupported \
FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
# define flac_length_status FLAC__StreamDecoderLengthStatus
# define flac_length_status_ok FLAC__STREAM_DECODER_LENGTH_STATUS_OK
# define flac_length_status_error FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR
# define flac_length_status_unsupported \
FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
#include <FLAC/metadata.h>
#define FLAC_CHUNK_SIZE 4080
struct flac_data {
struct pcm_buffer buffer;
float time;
unsigned int bit_rate;
struct audio_format audio_format;
float total_time;
FLAC__uint64 position;
struct decoder *decoder;
struct input_stream *input_stream;
struct replay_gain_info *replay_gain_info;
struct tag *tag;
};
static inline unsigned
flac_duration(const FLAC__StreamMetadata_StreamInfo *stream_info)
{
return (stream_info->total_samples + stream_info->sample_rate - 1) /
stream_info->sample_rate;
}
/* initializes a given FlacData struct */
void
flac_data_init(struct flac_data *data, struct decoder * decoder,
struct input_stream *input_stream);
void
flac_data_deinit(struct flac_data *data);
void flac_metadata_common_cb(const FLAC__StreamMetadata * block,
struct flac_data *data);
void flac_error_common_cb(const char *plugin,
FLAC__StreamDecoderErrorStatus status,
struct flac_data *data);
void
flac_vorbis_comments_to_tag(struct tag *tag, const char *char_tnum,
const FLAC__StreamMetadata_VorbisComment *comment);
FLAC__StreamDecoderWriteStatus
flac_common_write(struct flac_data *data, const FLAC__Frame * frame,
const FLAC__int32 *const buf[]);
#if defined(FLAC_API_VERSION_CURRENT) && FLAC_API_VERSION_CURRENT > 7
char*
flac_cue_track( const char* pathname,
const unsigned int tnum);
unsigned int
flac_vtrack_tnum( const char*);
#endif /* FLAC_API_VERSION_CURRENT >= 7 */
#endif /* _FLAC_COMMON_H */
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