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🎥 Command line media player
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123456789101112131415161718192021222324252627282930313233343536373839404142/* * This file is part of mpv. * * mpv 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. * * mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>. */
#include <stdint.h>
#include <libavutil/hash.h>
#include "common/common.h"#include "misc/hash.h"
bstr mp_hash_to_bstr(void *talloc_ctx, const uint8_t *data, size_t len, const char *algorithm){ struct AVHashContext *ctx = NULL; mp_require(av_hash_alloc(&ctx, algorithm) == 0); int size = av_hash_get_size(ctx); uint8_t hash[AV_HASH_MAX_SIZE] = {0};
av_hash_init(ctx); av_hash_update(ctx, data, len); av_hash_final(ctx, hash); av_hash_freep(&ctx);
bstr ret = {0}; for (int n = 0; n < size; n++) bstr_xappend_asprintf(talloc_ctx, &ret, "%02X", hash[n]); return ret;}