c7384b65ac
(Ab)use the decoder_command enumeration, which has nearly the same values and the same meaning.
183 lines
7.4 KiB
C
183 lines
7.4 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* Common data structures and functions used by FLAC and OggFLAC
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* (c) 2005 by Eric Wong <normalperson@yhbt.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _FLAC_COMMON_H
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#define _FLAC_COMMON_H
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#include "../decoder_api.h"
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#if defined(HAVE_FLAC) || defined(HAVE_OGGFLAC)
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#include <FLAC/export.h>
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#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
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# include <FLAC/seekable_stream_decoder.h>
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# define flac_decoder FLAC__SeekableStreamDecoder
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# define flac_new() FLAC__seekable_stream_decoder_new()
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# define flac_ogg_init(a,b,c,d,e,f,g,h,i,j) (0)
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# define flac_get_decode_position(x,y) \
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FLAC__seekable_stream_decoder_get_decode_position(x,y)
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# define flac_get_state(x) FLAC__seekable_stream_decoder_get_state(x)
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# define flac_process_single(x) FLAC__seekable_stream_decoder_process_single(x)
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# define flac_process_metadata(x) \
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FLAC__seekable_stream_decoder_process_until_end_of_metadata(x)
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# define flac_seek_absolute(x,y) \
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FLAC__seekable_stream_decoder_seek_absolute(x,y)
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# define flac_finish(x) FLAC__seekable_stream_decoder_finish(x)
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# define flac_delete(x) FLAC__seekable_stream_decoder_delete(x)
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# define flac_decoder_eof FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM
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typedef unsigned flac_read_status_size_t;
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# define flac_read_status FLAC__SeekableStreamDecoderReadStatus
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# define flac_read_status_continue \
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FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK
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# define flac_read_status_eof FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK
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# define flac_read_status_abort \
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FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR
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# define flac_seek_status FLAC__SeekableStreamDecoderSeekStatus
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# define flac_seek_status_ok FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK
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# define flac_seek_status_error FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR
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# define flac_tell_status FLAC__SeekableStreamDecoderTellStatus
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# define flac_tell_status_ok FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK
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# define flac_tell_status_error \
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FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR
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# define flac_tell_status_unsupported \
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FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR
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# define flac_length_status FLAC__SeekableStreamDecoderLengthStatus
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# define flac_length_status_ok FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK
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# define flac_length_status_error \
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FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR
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# define flac_length_status_unsupported \
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FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR
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# ifdef HAVE_OGGFLAC
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# include <OggFLAC/seekable_stream_decoder.h>
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# endif
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#else /* FLAC_API_VERSION_CURRENT > 7 */
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/*
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* OggFLAC support is handled by our flac_plugin already, and
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* thus we *can* always have it if libFLAC was compiled with it
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*/
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# include "_ogg_common.h"
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# include <FLAC/stream_decoder.h>
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# define flac_decoder FLAC__StreamDecoder
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# define flac_new() FLAC__stream_decoder_new()
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# define flac_init(a,b,c,d,e,f,g,h,i,j) \
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(FLAC__stream_decoder_init_stream(a,b,c,d,e,f,g,h,i,j) \
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== FLAC__STREAM_DECODER_INIT_STATUS_OK)
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# define flac_ogg_init(a,b,c,d,e,f,g,h,i,j) \
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(FLAC__stream_decoder_init_ogg_stream(a,b,c,d,e,f,g,h,i,j) \
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== FLAC__STREAM_DECODER_INIT_STATUS_OK)
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# define flac_get_decode_position(x,y) \
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FLAC__stream_decoder_get_decode_position(x,y)
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# define flac_get_state(x) FLAC__stream_decoder_get_state(x)
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# define flac_process_single(x) FLAC__stream_decoder_process_single(x)
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# define flac_process_metadata(x) \
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FLAC__stream_decoder_process_until_end_of_metadata(x)
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# define flac_seek_absolute(x,y) FLAC__stream_decoder_seek_absolute(x,y)
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# define flac_finish(x) FLAC__stream_decoder_finish(x)
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# define flac_delete(x) FLAC__stream_decoder_delete(x)
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# define flac_decoder_eof FLAC__STREAM_DECODER_END_OF_STREAM
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typedef size_t flac_read_status_size_t;
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# define flac_read_status FLAC__StreamDecoderReadStatus
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# define flac_read_status_continue \
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FLAC__STREAM_DECODER_READ_STATUS_CONTINUE
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# define flac_read_status_eof FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM
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# define flac_read_status_abort FLAC__STREAM_DECODER_READ_STATUS_ABORT
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# define flac_seek_status FLAC__StreamDecoderSeekStatus
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# define flac_seek_status_ok FLAC__STREAM_DECODER_SEEK_STATUS_OK
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# define flac_seek_status_error FLAC__STREAM_DECODER_SEEK_STATUS_ERROR
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# define flac_seek_status_unsupported \
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FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
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# define flac_tell_status FLAC__StreamDecoderTellStatus
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# define flac_tell_status_ok FLAC__STREAM_DECODER_TELL_STATUS_OK
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# define flac_tell_status_error FLAC__STREAM_DECODER_TELL_STATUS_ERROR
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# define flac_tell_status_unsupported \
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FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
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# define flac_length_status FLAC__StreamDecoderLengthStatus
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# define flac_length_status_ok FLAC__STREAM_DECODER_LENGTH_STATUS_OK
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# define flac_length_status_error FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR
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# define flac_length_status_unsupported \
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FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
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#endif /* FLAC_API_VERSION_CURRENT >= 7 */
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#include <FLAC/metadata.h>
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#define FLAC_CHUNK_SIZE 4080
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typedef struct {
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unsigned char chunk[FLAC_CHUNK_SIZE];
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size_t chunk_length;
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float time;
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unsigned int bitRate;
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AudioFormat audio_format;
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float total_time;
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FLAC__uint64 position;
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struct decoder *decoder;
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InputStream *inStream;
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ReplayGainInfo *replayGainInfo;
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MpdTag *tag;
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} FlacData;
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/* initializes a given FlacData struct */
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void init_FlacData(FlacData * data, struct decoder * decoder,
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InputStream * inStream);
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void flac_metadata_common_cb(const FLAC__StreamMetadata * block,
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FlacData * data);
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void flac_error_common_cb(const char *plugin,
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FLAC__StreamDecoderErrorStatus status,
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FlacData * data);
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MpdTag *copyVorbisCommentBlockToMpdTag(const FLAC__StreamMetadata * block,
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MpdTag * tag);
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/* keep this inlined, this is just macro but prettier :) */
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static inline int flacSendChunk(FlacData * data)
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{
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if (decoder_data(data->decoder, data->inStream,
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1, data->chunk,
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data->chunk_length, data->time,
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data->bitRate,
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data->replayGainInfo) == DECODE_COMMAND_STOP)
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return -1;
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return 0;
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}
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#endif /* HAVE_FLAC || HAVE_OGGFLAC */
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#endif /* _FLAC_COMMON_H */
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