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# src/pcm_convert.h

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    00001 /*
    00002  * Copyright (C) 2003-2010 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