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master
libavutil/tests/crc.c
47 строк
2 KB
Aurelien Jacobs
crc: add AV_CRC_8_SBC as a 8 bits CRC with polynomial 0x1D
08 мар 2018, 00:26
08 мар 2018, 00:26
0b4ad86
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/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <stdint.h> #include <stdio.h> #include "libavutil/crc.h" int main(void) { uint8_t buf[1999]; int i; static const unsigned p[7][3] = { { AV_CRC_32_IEEE_LE, 0xEDB88320, 0x3D5CDD04 }, { AV_CRC_32_IEEE , 0x04C11DB7, 0xC0F5BAE0 }, { AV_CRC_24_IEEE , 0x864CFB , 0xB704CE }, { AV_CRC_16_ANSI_LE, 0xA001 , 0xBFD8 }, { AV_CRC_16_ANSI , 0x8005 , 0x1FBB }, { AV_CRC_8_ATM , 0x07 , 0xE3 }, { AV_CRC_8_EBU , 0x1D , 0xD6 }, }; const AVCRC *ctx; for (i = 0; i < sizeof(buf); i++) buf[i] = i + i * i; for (i = 0; i < 7; i++) { ctx = av_crc_get_table(p[i][0]); printf("crc %08X = %X\n", p[i][1], av_crc(ctx, 0, buf, sizeof(buf))); } return 0; }