Sync with a more recent version of FFmpeg.

1 files changed, 45 insertions, 0 deletions

diff --git a/contrib/ffmpeg/libavutil/aes.h b/contrib/ffmpeg/libavutil/aes.h
new file mode 100644
index 000000000..34ba0a2fa
--- /dev/null
+++ b/contrib/ffmpeg/libavutil/aes.h
@@ -0,0 +1,45 @@
+/*
+ * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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 AES_H
+#define AES_H
+
+extern const int av_aes_size;
+
+struct AVAES;
+
+/**
+ * initalizes a AVAES context
+ * @param key_bits 128, 192 or 256
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
+
+/**
+ * encrypts / decrypts.
+ * @param count number of 16 byte blocks
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param iv initalization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_aes_crypt(struct AVAES *a, uint8_t *dst, uint8_t *src, int count, uint8_t *iv, int decrypt);
+
+#endif /* AES_H */