MPD 0.17~git
src/pcm_convert.h
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00001 /*
00002  * Copyright (C) 2003-2011 The Music Player Daemon Project
00003  * http://www.musicpd.org
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License along
00016  * with this program; if not, write to the Free Software Foundation, Inc.,
00017  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00018  */
00019 
00020 #ifndef PCM_CONVERT_H
00021 #define PCM_CONVERT_H
00022 
00023 #include "pcm_resample.h"
00024 #include "pcm_dither.h"
00025 #include "pcm_buffer.h"
00026 
00027 struct audio_format;
00028 
00034 struct pcm_convert_state {
00035         struct pcm_resample_state resample;
00036 
00037         struct pcm_dither dither;
00038 
00040         struct pcm_buffer format_buffer;
00041 
00043         struct pcm_buffer pack_buffer;
00044 
00046         struct pcm_buffer channels_buffer;
00047 
00049         struct pcm_buffer byteswap_buffer;
00050 };
00051 
00052 static inline GQuark
00053 pcm_convert_quark(void)
00054 {
00055         return g_quark_from_static_string("pcm_convert");
00056 }
00057 
00061 void pcm_convert_init(struct pcm_convert_state *state);
00062 
00067 void pcm_convert_deinit(struct pcm_convert_state *state);
00068 
00082 const void *
00083 pcm_convert(struct pcm_convert_state *state,
00084             const struct audio_format *src_format,
00085             const void *src, size_t src_size,
00086             const struct audio_format *dest_format,
00087             size_t *dest_size_r,
00088             GError **error_r);
00089 
00090 #endif