From 017c0811a1f6a0395f38842fbb4b9acf61ff0016 Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Tue, 3 Mar 2009 02:00:47 +0000 Subject: [PATCH] Add a get_sbits_long() function. Originally committed as revision 17740 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/bitstream.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/libavcodec/bitstream.h b/libavcodec/bitstream.h index 0b336f747..367028590 100644 --- a/libavcodec/bitstream.h +++ b/libavcodec/bitstream.h @@ -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 @@ -707,6 +708,13 @@ 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. */ static inline unsigned int show_bits_long(GetBitContext *s, int n){ -- 2.11.0