/*
- * Base64.c
* Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
*
* This file is part of FFmpeg.
#include <stdint.h>
/**
- * decodes base64
- * param order as strncpy()
+ * Decode a base64-encoded string.
+ *
+ * @param out buffer for decoded data
+ * @param in null-terminated input string
+ * @param out_size size in bytes of the out buffer, must be at
+ * least 3/4 of the length of in
+ * @return number of bytes written, or a negative value in case of
+ * invalid input
+ */
+int av_base64_decode(uint8_t *out, const char *in, int out_size);
+
+/**
+ * Encode data to base64 and null-terminate.
+ *
+ * @param out buffer for encoded data
+ * @param out_size size in bytes of the output buffer, must be at
+ * least AV_BASE64_SIZE(in_size)
+ * @param in_size size in bytes of the 'in' buffer
+ * @return 'out' or NULL in case of error
*/
-int av_base64_decode(uint8_t * out, const char *in, int out_length);
+char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
/**
- * encodes base64
- * @param src data, not a string
- * @param buf output string
+ * Calculate the output size needed to base64-encode x bytes.
*/
-char *av_base64_encode(char * buf, int buf_len, uint8_t * src, int len);
+#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
-#endif
+#endif /* AVUTIL_BASE64_H */