Commit 017c0811 authored by Justin Ruggles's avatar Justin Ruggles

Add a get_sbits_long() function.

Originally committed as revision 17740 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 8858990f
......@@ -33,6 +33,7 @@
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "mathops.h"
#if defined(ALT_BITSTREAM_READER_LE) && !defined(ALT_BITSTREAM_READER)
# define ALT_BITSTREAM_READER
......@@ -706,6 +707,13 @@ static inline unsigned int get_bits_long(GetBitContext *s, int n){
}
}
/**
* reads 0-32 bits as a signed integer.
*/
static inline int get_sbits_long(GetBitContext *s, int n) {
return sign_extend(get_bits_long(s, n), n);
}
/**
* shows 0-32 bits.
*/
......
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