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diff --git a/app/src/main/jni/ffmpeg-3.0.11/include/libavutil/hash.h b/app/src/main/jni/ffmpeg-3.0.11/include/libavutil/hash.h
new file mode 100644
index 0000000..d4bcbf8
--- /dev/null
+++ b/app/src/main/jni/ffmpeg-3.0.11/include/libavutil/hash.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * 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
+ */
+
+#ifndef AVUTIL_HASH_H
+#define AVUTIL_HASH_H
+
+#include <stdint.h>
+
+struct AVHashContext;
+
+/**
+ * Allocate a hash context for the algorithm specified by name.
+ *
+ * @return  >= 0 for success, a negative error code for failure
+ * @note  The context is not initialized, you must call av_hash_init().
+ */
+int av_hash_alloc(struct AVHashContext **ctx, const char *name);
+
+/**
+ * Get the names of available hash algorithms.
+ *
+ * This function can be used to enumerate the algorithms.
+ *
+ * @param i  index of the hash algorithm, starting from 0
+ * @return   a pointer to a static string or NULL if i is out of range
+ */
+const char *av_hash_names(int i);
+
+/**
+ * Get the name of the algorithm corresponding to the given hash context.
+ */
+const char *av_hash_get_name(const struct AVHashContext *ctx);
+
+/**
+ * Maximum value that av_hash_get_size will currently return.
+ *
+ * You can use this if you absolutely want or need to use static allocation
+ * and are fine with not supporting hashes newly added to libavutil without
+ * recompilation.
+ * Note that you still need to check against av_hash_get_size, adding new hashes
+ * with larger sizes will not be considered an ABI change and should not cause
+ * your code to overflow a buffer.
+ */
+#define AV_HASH_MAX_SIZE 64
+
+/**
+ * Get the size of the resulting hash value in bytes.
+ *
+ * The pointer passed to av_hash_final have space for at least this many bytes.
+ */
+int av_hash_get_size(const struct AVHashContext *ctx);
+
+/**
+ * Initialize or reset a hash context.
+ */
+void av_hash_init(struct AVHashContext *ctx);
+
+/**
+ * Update a hash context with additional data.
+ */
+void av_hash_update(struct AVHashContext *ctx, const uint8_t *src, int len);
+
+/**
+ * Finalize a hash context and compute the actual hash value.
+ */
+void av_hash_final(struct AVHashContext *ctx, uint8_t *dst);
+
+/**
+ * Finalize a hash context and compute the actual hash value.
+ * If size is smaller than the hash size, the hash is truncated;
+ * if size is larger, the buffer is padded with 0.
+ */
+void av_hash_final_bin(struct AVHashContext *ctx, uint8_t *dst, int size);
+
+/**
+ * Finalize a hash context and compute the actual hash value as a hex string.
+ * The string is always 0-terminated.
+ * If size is smaller than 2 * hash_size + 1, the hex string is truncated.
+ */
+void av_hash_final_hex(struct AVHashContext *ctx, uint8_t *dst, int size);
+
+/**
+ * Finalize a hash context and compute the actual hash value as a base64 string.
+ * The string is always 0-terminated.
+ * If size is smaller than AV_BASE64_SIZE(hash_size), the base64 string is
+ * truncated.
+ */
+void av_hash_final_b64(struct AVHashContext *ctx, uint8_t *dst, int size);
+
+/**
+ * Free hash context.
+ */
+void av_hash_freep(struct AVHashContext **ctx);
+
+#endif /* AVUTIL_HASH_H */