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authorAurelien Jacobs <aurel@gnuage.org>2006-08-28 18:44:49 +0000
committerAurelien Jacobs <aurel@gnuage.org>2006-08-28 18:44:49 +0000
commit8fbc6aae75403a7bbca595df9d3d3a9d835dc576 (patch)
treefb61b3b5a7a58dfed02108d26c7c126b818a7235
parent1b4f17fafaebaaad52ef436e9288e2cb3ef7b396 (diff)
downloadffmpeg-8fbc6aae75403a7bbca595df9d3d3a9d835dc576.tar.gz
move some functions to bitstream.h to avoid conflicts
between different bitstream readers in different codecs Originally committed as revision 6117 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r--libavcodec/bitstream.c35
-rw-r--r--libavcodec/bitstream.h40
2 files changed, 35 insertions, 40 deletions
diff --git a/libavcodec/bitstream.c b/libavcodec/bitstream.c
index 7eee0229a8..3eb1a6d745 100644
--- a/libavcodec/bitstream.c
+++ b/libavcodec/bitstream.c
@@ -47,41 +47,6 @@ void ff_put_string(PutBitContext * pbc, char *s, int put_zero)
put_bits(pbc, 8, 0);
}
-/* bit input functions */
-
-/**
- * reads 0-32 bits.
- */
-unsigned int get_bits_long(GetBitContext *s, int n){
- if(n<=17) return get_bits(s, n);
- else{
- int ret= get_bits(s, 16) << (n-16);
- return ret | get_bits(s, n-16);
- }
-}
-
-/**
- * shows 0-32 bits.
- */
-unsigned int show_bits_long(GetBitContext *s, int n){
- if(n<=17) return show_bits(s, n);
- else{
- GetBitContext gb= *s;
- int ret= get_bits_long(s, n);
- *s= gb;
- return ret;
- }
-}
-
-int check_marker(GetBitContext *s, const char *msg)
-{
- int bit= get_bits1(s);
- if(!bit)
- av_log(NULL, AV_LOG_INFO, "Marker bit missing %s\n", msg);
-
- return bit;
-}
-
/* VLC decoding */
//#define DEBUG_VLC
diff --git a/libavcodec/bitstream.h b/libavcodec/bitstream.h
index e0322b01da..17b5d2b1c5 100644
--- a/libavcodec/bitstream.h
+++ b/libavcodec/bitstream.h
@@ -6,6 +6,8 @@
#ifndef BITSTREAM_H
#define BITSTREAM_H
+#include "log.h"
+
//#define ALT_BITSTREAM_WRITER
//#define ALIGNED_BITSTREAM_WRITER
#if !defined(LIBMPEG2_BITSTREAM_READER) && !defined(A32_BITSTREAM_READER) && !defined(ALT_BITSTREAM_READER)
@@ -642,8 +644,6 @@ static inline unsigned int get_bits(GetBitContext *s, int n){
return tmp;
}
-unsigned int get_bits_long(GetBitContext *s, int n);
-
/**
* shows 0-17 bits.
* Note, the alt bitstream reader can read up to 25 bits, but the libmpeg2 reader can't
@@ -657,8 +657,6 @@ static inline unsigned int show_bits(GetBitContext *s, int n){
return tmp;
}
-unsigned int show_bits_long(GetBitContext *s, int n);
-
static inline void skip_bits(GetBitContext *s, int n){
//Note gcc seems to optimize this to s->index+=n for the ALT_READER :))
OPEN_READER(re, s)
@@ -696,6 +694,39 @@ static inline void skip_bits1(GetBitContext *s){
}
/**
+ * reads 0-32 bits.
+ */
+static inline unsigned int get_bits_long(GetBitContext *s, int n){
+ if(n<=17) return get_bits(s, n);
+ else{
+ int ret= get_bits(s, 16) << (n-16);
+ return ret | get_bits(s, n-16);
+ }
+}
+
+/**
+ * shows 0-32 bits.
+ */
+static inline unsigned int show_bits_long(GetBitContext *s, int n){
+ if(n<=17) return show_bits(s, n);
+ else{
+ GetBitContext gb= *s;
+ int ret= get_bits_long(s, n);
+ *s= gb;
+ return ret;
+ }
+}
+
+static inline int check_marker(GetBitContext *s, const char *msg)
+{
+ int bit= get_bits1(s);
+ if(!bit)
+ av_log(NULL, AV_LOG_INFO, "Marker bit missing %s\n", msg);
+
+ return bit;
+}
+
+/**
* init GetBitContext.
* @param buffer bitstream buffer, must be FF_INPUT_BUFFER_PADDING_SIZE bytes larger then the actual read bits
* because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
@@ -828,7 +859,6 @@ static always_inline int get_vlc2(GetBitContext *s, VLC_TYPE (*table)[2],
//#define TRACE
#ifdef TRACE
-#include "avcodec.h"
static inline void print_bin(int bits, int n){
int i;