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avutil/crc: avoid needless space wastage of hardcoded crc table 

There was no reason AFAIK for making AV_CRC_24_IEEE 12. This simply
resulted in wasted space under --enable-hardcoded-tables:
dynamic: 1318672 libavutil/libavutil.so.55
old    : 1330680 libavutil/libavutil.so.55
new    : 1326488 libavutil/libavutil.so.55

Minor version number is bumped, with ifdefry due to API breakage.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-11-29 21:36:52 -05:00
parent 26379d4fdd
commit 1bb7db217d
2 changed files with 8 additions and 0 deletions
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5
libavutil/crc.h
View File

@ -24,6 +24,7 @@
#include <stdint.h>
#include <stddef.h>
#include "attributes.h"
#include "version.h"
/**
* @defgroup lavu_crc32 CRC32
@ -40,7 +41,11 @@ typedef enum {
AV_CRC_32_IEEE,
AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
AV_CRC_16_ANSI_LE, /*< reversed bitorder version of AV_CRC_16_ANSI */
#if FF_API_CRC_BIG_TABLE
AV_CRC_24_IEEE = 12,
#else
AV_CRC_24_IEEE,
#endif /* FF_API_CRC_BIG_TABLE */
AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */
}AVCRCId;

3
libavutil/version.h
View File

@ -108,6 +108,9 @@
#ifndef FF_API_ERROR_FRAME
#define FF_API_ERROR_FRAME (LIBAVUTIL_VERSION_MAJOR < 56)
#endif
#ifndef FF_API_CRC_BIG_TABLE
#define FF_API_CRC_BIG_TABLE (LIBAVUTIL_VERSION_MAJOR < 56)
#endif
/**