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/* $Id: wave.c 3553 2011-05-05 06:14:19Z nanang $ */
/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <pjmedia/wave.h>
/*
* Change the endianness of WAVE header fields.
*/
static void wave_hdr_swap_bytes( pjmedia_wave_hdr *hdr )
{
#if defined(PJ_IS_BIG_ENDIAN) && PJ_IS_BIG_ENDIAN!=0
hdr->riff_hdr.riff = pj_swap32(hdr->riff_hdr.riff);
hdr->riff_hdr.file_len = pj_swap32(hdr->riff_hdr.file_len);
hdr->riff_hdr.wave = pj_swap32(hdr->riff_hdr.wave);
hdr->fmt_hdr.fmt = pj_swap32(hdr->fmt_hdr.fmt);
hdr->fmt_hdr.len = pj_swap32(hdr->fmt_hdr.len);
hdr->fmt_hdr.fmt_tag = pj_swap16(hdr->fmt_hdr.fmt_tag);
hdr->fmt_hdr.nchan = pj_swap16(hdr->fmt_hdr.nchan);
hdr->fmt_hdr.sample_rate = pj_swap32(hdr->fmt_hdr.sample_rate);
hdr->fmt_hdr.bytes_per_sec = pj_swap32(hdr->fmt_hdr.bytes_per_sec);
hdr->fmt_hdr.block_align = pj_swap16(hdr->fmt_hdr.block_align);
hdr->fmt_hdr.bits_per_sample = pj_swap16(hdr->fmt_hdr.bits_per_sample);
hdr->data_hdr.data = pj_swap32(hdr->data_hdr.data);
hdr->data_hdr.len = pj_swap32(hdr->data_hdr.len);
#else
PJ_UNUSED_ARG(hdr);
#endif
}
PJ_DEF(void) pjmedia_wave_hdr_file_to_host( pjmedia_wave_hdr *hdr )
{
wave_hdr_swap_bytes(hdr);
}
PJ_DEF(void) pjmedia_wave_hdr_host_to_file( pjmedia_wave_hdr *hdr )
{
wave_hdr_swap_bytes(hdr);
}
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