lavu/base64: add AV_BASE64_DECODE_SIZE() macro

This is consistent with the AV_BASE64_SIZE macro and avoids the literal
use of constants in the code.
This commit is contained in:
Stefano Sabatini 2016-03-20 15:59:47 +01:00
parent b4daa2c40f
commit e8a9b64410
3 changed files with 11 additions and 3 deletions

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@ -15,6 +15,9 @@ libavutil: 2015-08-28
API changes, most recent first: API changes, most recent first:
2016-04-02 - xxxxxxx - lavu 55.20.100 - base64.h
Add AV_BASE64_DECODE_SIZE(x) macro.
2016-xx-xx - lavc 57.33.0 - avcodec.h 2016-xx-xx - lavc 57.33.0 - avcodec.h
xxxxxxx - Add AVCodecParameters and its related API. xxxxxxx - Add AVCodecParameters and its related API.
xxxxxxx - Add av_get_audio_frame_duration2(). xxxxxxx - Add av_get_audio_frame_duration2().

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@ -29,19 +29,24 @@
* @{ * @{
*/ */
/** /**
* Decode a base64-encoded string. * Decode a base64-encoded string.
* *
* @param out buffer for decoded data * @param out buffer for decoded data
* @param in null-terminated input string * @param in null-terminated input string
* @param out_size size in bytes of the out buffer, must be at * @param out_size size in bytes of the out buffer, must be at
* least 3/4 of the length of in * least 3/4 of the length of in, that is AV_BASE64_DECODE_SIZE(strlen(in))
* @return number of bytes written, or a negative value in case of * @return number of bytes written, or a negative value in case of
* invalid input * invalid input
*/ */
int av_base64_decode(uint8_t *out, const char *in, int out_size); int av_base64_decode(uint8_t *out, const char *in, int out_size);
/**
* Calculate the output size in bytes needed to decode a base64 string
* with length x to a data buffer.
*/
#define AV_BASE64_DECODE_SIZE(x) ((x) * 3LL / 4)
/** /**
* Encode data to base64 and null-terminate. * Encode data to base64 and null-terminate.
* *

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@ -64,7 +64,7 @@
*/ */
#define LIBAVUTIL_VERSION_MAJOR 55 #define LIBAVUTIL_VERSION_MAJOR 55
#define LIBAVUTIL_VERSION_MINOR 19 #define LIBAVUTIL_VERSION_MINOR 20
#define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \