FFmpeg: libavformat/spdif.c Source File

00001 /*
00002  * IEC 61937 common code
00003  * Copyright (c) 2009 Bartlomiej Wolowiec
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00022 #include "spdif.h"
00023 #include "libavutil/bswap.h"
00024 
00025 //TODO move to DSP
00026 void ff_spdif_bswap_buf16(uint16_t *dst, const uint16_t *src, int w)
00027 {
00028     int i;
00029 
00030     for (i = 0; i + 8 <= w; i += 8) {
00031         dst[i + 0] = av_bswap16(src[i + 0]);
00032         dst[i + 1] = av_bswap16(src[i + 1]);
00033         dst[i + 2] = av_bswap16(src[i + 2]);
00034         dst[i + 3] = av_bswap16(src[i + 3]);
00035         dst[i + 4] = av_bswap16(src[i + 4]);
00036         dst[i + 5] = av_bswap16(src[i + 5]);
00037         dst[i + 6] = av_bswap16(src[i + 6]);
00038         dst[i + 7] = av_bswap16(src[i + 7]);
00039     }
00040     for (; i < w; i++)
00041         dst[i + 0] = av_bswap16(src[i + 0]);
00042 }