0aee49bdf8
This updates the copyright header to all be the same, which is pretty much an update of where to mail request for a copy of the GPL and the years of the MPD project. This also puts all committers under 'The Music Player Project' umbrella. These entries should go individually in the AUTHORS file, for consistancy.
81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* 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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_PCM_CHANNELS_H
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#define MPD_PCM_CHANNELS_H
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#include <stdint.h>
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#include <stddef.h>
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struct pcm_buffer;
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/**
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* Changes the number of channels in 16 bit PCM data.
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*
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* @param buffer the destination pcm_buffer object
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* @param dest_channels the number of channels requested
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* @param src_channels the number of channels in the source buffer
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* @param src the source PCM buffer
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* @param src_size the number of bytes in #src
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* @param dest_size_r returns the number of bytes of the destination buffer
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* @return the destination buffer
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*/
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const int16_t *
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pcm_convert_channels_16(struct pcm_buffer *buffer,
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int8_t dest_channels,
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int8_t src_channels, const int16_t *src,
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size_t src_size, size_t *dest_size_r);
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/**
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* Changes the number of channels in 24 bit PCM data (aligned at 32
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* bit boundaries).
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*
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* @param buffer the destination pcm_buffer object
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* @param dest_channels the number of channels requested
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* @param src_channels the number of channels in the source buffer
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* @param src the source PCM buffer
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* @param src_size the number of bytes in #src
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* @param dest_size_r returns the number of bytes of the destination buffer
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* @return the destination buffer
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*/
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const int32_t *
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pcm_convert_channels_24(struct pcm_buffer *buffer,
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int8_t dest_channels,
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int8_t src_channels, const int32_t *src,
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size_t src_size, size_t *dest_size_r);
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/**
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* Changes the number of channels in 32 bit PCM data.
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*
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* @param buffer the destination pcm_buffer object
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* @param dest_channels the number of channels requested
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* @param src_channels the number of channels in the source buffer
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* @param src the source PCM buffer
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* @param src_size the number of bytes in #src
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* @param dest_size_r returns the number of bytes of the destination buffer
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* @return the destination buffer
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*/
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const int32_t *
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pcm_convert_channels_32(struct pcm_buffer *buffer,
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int8_t dest_channels,
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int8_t src_channels, const int32_t *src,
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size_t src_size, size_t *dest_size_r);
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#endif
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