*
* loosely based on LibTomCrypt by Tom St Denis
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avutil.h"
#include "common.h"
+#include "mem.h"
#include "rc4.h"
-typedef struct AVRC4 AVRC4;
+#if !FF_API_CRYPTO_CONTEXT
+struct AVRC4 {
+ uint8_t state[256];
+ int x, y;
+};
+#endif
+
+AVRC4 *av_rc4_alloc(void)
+{
+ return av_mallocz(sizeof(struct AVRC4));
+}
int av_rc4_init(AVRC4 *r, const uint8_t *key, int key_bits, int decrypt) {
int i, j;
}
r->x = x; r->y = y;
}
-
-#if LIBAVUTIL_VERSION_MAJOR < 50
-void ff_rc4_enc(const uint8_t *key, int keylen, uint8_t *data, int datalen) {
- AVRC4 r;
- av_rc4_init(&r, key, keylen * 8, 0);
- av_rc4_crypt(&r, data, data, datalen, NULL, 0);
-}
-#endif