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58 lines
1.9 KiB
58 lines
1.9 KiB
/* |
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* Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg 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 GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "intreadwrite.h" |
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#include "mem.h" |
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#include "murmur3.h" |
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int main(void) |
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{ |
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int i; |
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uint8_t hash_result[16] = {0}; |
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struct AVMurMur3 *ctx = av_murmur3_alloc(); |
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#if 1 |
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uint8_t in[256] = {0}; |
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uint8_t *hashes = av_mallocz(256 * 16); |
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for (i = 0; i < 256; i++) |
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{ |
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in[i] = i; |
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av_murmur3_init_seeded(ctx, 256 - i); |
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// Note: this actually tests hashing 0 bytes |
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av_murmur3_update(ctx, in, i); |
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av_murmur3_final(ctx, hashes + 16 * i); |
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} |
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av_murmur3_init_seeded(ctx, 0); |
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av_murmur3_update(ctx, hashes, 256 * 16); |
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av_murmur3_final(ctx, hash_result); |
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av_free(hashes); |
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av_freep(&ctx); |
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printf("result: 0x%"PRIx64" 0x%"PRIx64"\n", AV_RL64(hash_result), AV_RL64(hash_result + 8)); |
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// official reference value is 32 bit |
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return AV_RL32(hash_result) != 0x6384ba69; |
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#else |
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uint8_t *in = av_mallocz(512*1024); |
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av_murmur3_init(ctx); |
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for (i = 0; i < 40*1024; i++) |
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av_murmur3_update(ctx, in, 512*1024); |
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av_murmur3_final(ctx, hash_result); |
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av_free(in); |
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return hash_result[0]; |
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#endif |
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}
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