Base64

Macros
#define	AV_BASE64_DECODE_SIZE(x)   ((x) * 3LL / 4)
	Calculate the output size in bytes needed to decode a base64 string with length x to a data buffer. More...
#define	AV_BASE64_SIZE(x)   (((x)+2) / 3 * 4 + 1)
	Calculate the output size needed to base64-encode x bytes to a null-terminated string. More...

Functions
int	av_base64_decode (uint8_t *out, const char *in, int out_size)
	Decode a base64-encoded string. More...
char *	av_base64_encode (char *out, int out_size, const uint8_t *in, int in_size)
	Encode data to base64 and null-terminate. More...

Detailed Description

Macro Definition Documentation

AV_BASE64_DECODE_SIZE

#define AV_BASE64_DECODE_SIZE

(

x

)

((x) * 3LL / 4)

Calculate the output size in bytes needed to decode a base64 string with length x to a data buffer.

Definition at line 48 of file base64.h.

AV_BASE64_SIZE

#define AV_BASE64_SIZE

(

x

)

(((x)+2) / 3 * 4 + 1)

Calculate the output size needed to base64-encode x bytes to a null-terminated string.

Definition at line 66 of file base64.h.

Function Documentation

av_base64_decode()

int av_base64_decode	(	uint8_t *	out,
		const char *	in,
		int	out_size
	)

Decode a base64-encoded string.

Parameters

out	buffer for decoded data
in	null-terminated input string
out_size	size in bytes of the out buffer, must be at least 3/4 of the length of in, that is AV_BASE64_DECODE_SIZE(strlen(in))

Returns

number of bytes written, or a negative value in case of invalid input

av_base64_encode()

char* av_base64_encode	(	char *	out,
		int	out_size,
		const uint8_t *	in,
		int	in_size
	)

Encode data to base64 and null-terminate.

Parameters

out	buffer for encoded data
out_size	size in bytes of the out buffer (including the null terminator), must be at least AV_BASE64_SIZE(in_size)
in	input buffer containing the data to encode
in_size	size in bytes of the in buffer

Returns

out or NULL in case of error