1 /* the Music Player Daemon (MPD)
2 * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
3 * This project's homepage is: http://www.musicpd.org
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #ifndef OUTPUT_BUFFER_H
20 #define OUTPUT_BUFFER_H
22 #include "pcm_utils.h"
23 #include "mpd_types.h"
26 #include "inputStream.h"
27 #include "metadataChunk.h"
28 #include "replayGain.h"
30 #define OUTPUT_BUFFER_DC_STOP -1
31 #define OUTPUT_BUFFER_DC_SEEK -2
33 #define BUFFERED_METACHUNKS 25
35 typedef struct _OutputBuffer {
36 char *volatile chunks;
37 mpd_uint16 *volatile chunkSize;
38 mpd_uint16 *volatile bitRate;
39 float *volatile times;
40 mpd_sint16 volatile begin;
41 mpd_sint16 volatile end;
42 AudioFormat audioFormat;
44 MetadataChunk metadataChunks[BUFFERED_METACHUNKS];
45 mpd_sint8 metaChunkSet[BUFFERED_METACHUNKS];
46 mpd_sint8 *volatile metaChunk;
47 volatile mpd_sint8 acceptMetadata;
50 void clearOutputBuffer(OutputBuffer * cb);
52 void flushOutputBuffer(OutputBuffer * cb);
54 /* we send inStream for buffering the inputStream while waiting to
55 send the next chunk */
56 int sendDataToOutputBuffer(OutputBuffer * cb,
57 InputStream * inStream,
63 mpd_uint16 bitRate, ReplayGainInfo * replayGainInfo);
65 int copyMpdTagToOutputBuffer(OutputBuffer * cb, MpdTag * tag);
67 void clearAllMetaChunkSets(OutputBuffer * cb);