74 lines
1.9 KiB
C
74 lines
1.9 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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* Copyright (C) 2008 Max Kellermann <max@duempel.org>
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* This project's homepage is: http://www.musicpd.org
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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 MPD_PCM_RESAMPLE_H
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#define MPD_PCM_RESAMPLE_H
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#include "pcm_buffer.h"
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#include "config.h"
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#ifdef HAVE_LIBSAMPLERATE
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#include <samplerate.h>
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#endif
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struct pcm_resample_state {
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#ifdef HAVE_LIBSAMPLERATE
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SRC_STATE *state;
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SRC_DATA data;
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struct pcm_buffer in, out;
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struct {
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unsigned src_rate;
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unsigned dest_rate;
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uint8_t channels;
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} prev;
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bool error;
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#endif
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struct pcm_buffer buffer;
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};
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void pcm_resample_init(struct pcm_resample_state *state);
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void pcm_resample_deinit(struct pcm_resample_state *state);
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const int16_t *
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pcm_resample_16(struct pcm_resample_state *state,
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uint8_t channels,
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unsigned src_rate,
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const int16_t *src_buffer, size_t src_size,
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unsigned dest_rate,
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size_t *dest_size_r);
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const int32_t *
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pcm_resample_24(struct pcm_resample_state *state,
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uint8_t channels,
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unsigned src_rate,
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const int32_t *src_buffer, size_t src_size,
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unsigned dest_rate,
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size_t *dest_size_r);
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#endif
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