| Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pjmedia/wave.h> |
| 21 | |
| 22 | /* |
| 23 | * Change the endianness of WAVE header fields. |
| 24 | */ |
| 25 | static void wave_hdr_swap_bytes( pjmedia_wave_hdr *hdr ) |
| 26 | { |
| 27 | #if defined(PJ_IS_BIG_ENDIAN) && PJ_IS_BIG_ENDIAN!=0 |
| 28 | hdr->riff_hdr.riff = pj_swap32(hdr->riff_hdr.riff); |
| 29 | hdr->riff_hdr.file_len = pj_swap32(hdr->riff_hdr.file_len); |
| 30 | hdr->riff_hdr.wave = pj_swap32(hdr->riff_hdr.wave); |
| 31 | |
| 32 | hdr->fmt_hdr.fmt = pj_swap32(hdr->fmt_hdr.fmt); |
| 33 | hdr->fmt_hdr.len = pj_swap32(hdr->fmt_hdr.len); |
| 34 | hdr->fmt_hdr.fmt_tag = pj_swap16(hdr->fmt_hdr.fmt_tag); |
| 35 | hdr->fmt_hdr.nchan = pj_swap16(hdr->fmt_hdr.nchan); |
| 36 | hdr->fmt_hdr.sample_rate = pj_swap32(hdr->fmt_hdr.sample_rate); |
| 37 | hdr->fmt_hdr.bytes_per_sec = pj_swap32(hdr->fmt_hdr.bytes_per_sec); |
| 38 | hdr->fmt_hdr.block_align = pj_swap16(hdr->fmt_hdr.block_align); |
| 39 | hdr->fmt_hdr.bits_per_sample = pj_swap16(hdr->fmt_hdr.bits_per_sample); |
| 40 | |
| 41 | hdr->data_hdr.data = pj_swap32(hdr->data_hdr.data); |
| 42 | hdr->data_hdr.len = pj_swap32(hdr->data_hdr.len); |
| 43 | #else |
| 44 | PJ_UNUSED_ARG(hdr); |
| 45 | #endif |
| 46 | } |
| 47 | |
| 48 | |
| 49 | PJ_DEF(void) pjmedia_wave_hdr_file_to_host( pjmedia_wave_hdr *hdr ) |
| 50 | { |
| 51 | wave_hdr_swap_bytes(hdr); |
| 52 | } |
| 53 | |
| 54 | PJ_DEF(void) pjmedia_wave_hdr_host_to_file( pjmedia_wave_hdr *hdr ) |
| 55 | { |
| 56 | wave_hdr_swap_bytes(hdr); |
| 57 | } |
| 58 | |