[FFmpeg-cvslog] Sanitise get_bits macros, part 2

Mans Rullgard git
Sun Jan 23 21:01:56 CET 2011


ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Sun Jan 23 01:56:27 2011 +0000| [371cf026a7000460efc5b720505d58391baa2e84] | committer: Michael Niedermayer

Sanitise get_bits macros, part 2

These whitespace changes improve the readability of the get_bits
macros.

Signed-off-by: Mans Rullgard <mans at mansr.com>
(cherry picked from commit fb5c841d5f05ae54b699ba6ef28356a6563751eb)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=371cf026a7000460efc5b720505d58391baa2e84
---

 libavcodec/get_bits.h |  378 ++++++++++++++++++++++++-------------------------
 1 files changed, 182 insertions(+), 196 deletions(-)

diff --git a/libavcodec/get_bits.h b/libavcodec/get_bits.h
index 4fbfbb9..88d2bbf 100644
--- a/libavcodec/get_bits.h
+++ b/libavcodec/get_bits.h
@@ -125,56 +125,46 @@ for examples see get_bits, show_bits, skip_bits, get_vlc
 #ifdef ALT_BITSTREAM_READER
 #   define MIN_CACHE_BITS 25
 
-#   define OPEN_READER(name, gb)\
-        unsigned int name##_index= (gb)->index;\
-        int name##_cache= 0
+#   define OPEN_READER(name, gb)                \
+    unsigned int name##_index = (gb)->index;    \
+    int name##_cache          = 0
 
-#   define CLOSE_READER(name, gb)\
-        (gb)->index= name##_index
+#   define CLOSE_READER(name, gb) (gb)->index = name##_index
 
 # ifdef ALT_BITSTREAM_READER_LE
-#   define UPDATE_CACHE(name, gb)\
-        name##_cache= AV_RL32( ((const uint8_t *)(gb)->buffer)+(name##_index>>3) ) >> (name##_index&0x07)
+#   define UPDATE_CACHE(name, gb) \
+    name##_cache = AV_RL32(((const uint8_t *)(gb)->buffer)+(name##_index>>3)) >> (name##_index&0x07)
 
-#   define SKIP_CACHE(name, gb, num)\
-        name##_cache >>= (num)
+#   define SKIP_CACHE(name, gb, num) name##_cache >>= (num)
 # else
-#   define UPDATE_CACHE(name, gb)\
-        name##_cache= AV_RB32( ((const uint8_t *)(gb)->buffer)+(name##_index>>3) ) << (name##_index&0x07)
+#   define UPDATE_CACHE(name, gb) \
+    name##_cache = AV_RB32(((const uint8_t *)(gb)->buffer)+(name##_index>>3)) << (name##_index&0x07)
 
-#   define SKIP_CACHE(name, gb, num)\
-        name##_cache <<= (num)
+#   define SKIP_CACHE(name, gb, num) name##_cache <<= (num)
 # endif
 
 // FIXME name?
-#   define SKIP_COUNTER(name, gb, num)\
-        name##_index += (num)
+#   define SKIP_COUNTER(name, gb, num) name##_index += (num)
 
-#   define SKIP_BITS(name, gb, num)\
-        do {\
-            SKIP_CACHE(name, gb, num);\
-            SKIP_COUNTER(name, gb, num);\
-        } while (0)
+#   define SKIP_BITS(name, gb, num) do {        \
+        SKIP_CACHE(name, gb, num);              \
+        SKIP_COUNTER(name, gb, num);            \
+    } while (0)
 
 #   define LAST_SKIP_BITS(name, gb, num) SKIP_COUNTER(name, gb, num)
 #   define LAST_SKIP_CACHE(name, gb, num)
 
 # ifdef ALT_BITSTREAM_READER_LE
-#   define SHOW_UBITS(name, gb, num)\
-        zero_extend(name##_cache, num)
+#   define SHOW_UBITS(name, gb, num) zero_extend(name##_cache, num)
 
-#   define SHOW_SBITS(name, gb, num)\
-        sign_extend(name##_cache, num)
+#   define SHOW_SBITS(name, gb, num) sign_extend(name##_cache, num)
 # else
-#   define SHOW_UBITS(name, gb, num)\
-        NEG_USR32(name##_cache, num)
+#   define SHOW_UBITS(name, gb, num) NEG_USR32(name##_cache, num)
 
-#   define SHOW_SBITS(name, gb, num)\
-        NEG_SSR32(name##_cache, num)
+#   define SHOW_SBITS(name, gb, num) NEG_SSR32(name##_cache, num)
 # endif
 
-#   define GET_CACHE(name, gb)\
-        ((uint32_t)name##_cache)
+#   define GET_CACHE(name, gb) ((uint32_t)name##_cache)
 
 static inline int get_bits_count(const GetBitContext *s){
     return s->index;
@@ -188,67 +178,60 @@ static inline void skip_bits_long(GetBitContext *s, int n){
 
 #   define MIN_CACHE_BITS 32
 
-#   define OPEN_READER(name, gb)\
-        int name##_bit_count=(gb)->bit_count;\
-        uint32_t name##_cache0= (gb)->cache0;\
-        uint32_t name##_cache1= (gb)->cache1;\
-        uint32_t * name##_buffer_ptr=(gb)->buffer_ptr
-
-#   define CLOSE_READER(name, gb) do {\
-        (gb)->bit_count= name##_bit_count;\
-        (gb)->cache0= name##_cache0;\
-        (gb)->cache1= name##_cache1;\
-        (gb)->buffer_ptr= name##_buffer_ptr;\
+#   define OPEN_READER(name, gb)                        \
+    int name##_bit_count        = (gb)->bit_count;      \
+    uint32_t name##_cache0      = (gb)->cache0;         \
+    uint32_t name##_cache1      = (gb)->cache1;         \
+    uint32_t *name##_buffer_ptr = (gb)->buffer_ptr
+
+#   define CLOSE_READER(name, gb) do {          \
+        (gb)->bit_count  = name##_bit_count;    \
+        (gb)->cache0     = name##_cache0;       \
+        (gb)->cache1     = name##_cache1;       \
+        (gb)->buffer_ptr = name##_buffer_ptr;   \
     } while (0)
 
-#   define UPDATE_CACHE(name, gb) do {\
-    if(name##_bit_count > 0){\
-        const uint32_t next= av_be2ne32( *name##_buffer_ptr );\
-        name##_cache0 |= NEG_USR32(next,name##_bit_count);\
-        name##_cache1 |= next<<name##_bit_count;\
-        name##_buffer_ptr++;\
-        name##_bit_count-= 32;\
-    }\
-} while (0)
+#   define UPDATE_CACHE(name, gb) do {                                  \
+        if(name##_bit_count > 0){                                       \
+            const uint32_t next = av_be2ne32(*name##_buffer_ptr);       \
+            name##_cache0 |= NEG_USR32(next, name##_bit_count);         \
+            name##_cache1 |= next << name##_bit_count;                  \
+            name##_buffer_ptr++;                                        \
+            name##_bit_count -= 32;                                     \
+        }                                                               \
+    } while (0)
 
 #if ARCH_X86
-#   define SKIP_CACHE(name, gb, num)\
-        __asm__(\
-            "shldl %2, %1, %0          \n\t"\
-            "shll %2, %1               \n\t"\
-            : "+r" (name##_cache0), "+r" (name##_cache1)\
-            : "Ic" ((uint8_t)(num))\
-           )
+#   define SKIP_CACHE(name, gb, num)                            \
+    __asm__("shldl %2, %1, %0          \n\t"                    \
+            "shll  %2, %1              \n\t"                    \
+            : "+r" (name##_cache0), "+r" (name##_cache1)        \
+            : "Ic" ((uint8_t)(num)))
 #else
-#   define SKIP_CACHE(name, gb, num) do {\
-        name##_cache0 <<= (num);\
-        name##_cache0 |= NEG_USR32(name##_cache1,num);\
-        name##_cache1 <<= (num);\
+#   define SKIP_CACHE(name, gb, num) do {               \
+        name##_cache0 <<= (num);                        \
+        name##_cache0 |= NEG_USR32(name##_cache1,num);  \
+        name##_cache1 <<= (num);                        \
     } while (0)
 #endif
 
-#   define SKIP_COUNTER(name, gb, num)\
-        name##_bit_count += (num)
+#   define SKIP_COUNTER(name, gb, num) name##_bit_count += (num)
 
-#   define SKIP_BITS(name, gb, num)\
-        do {\
-            SKIP_CACHE(name, gb, num);\
-            SKIP_COUNTER(name, gb, num);\
-        } while (0)
+#   define SKIP_BITS(name, gb, num) do {        \
+        SKIP_CACHE(name, gb, num);              \
+        SKIP_COUNTER(name, gb, num);            \
+    } while (0)
 
-#   define LAST_SKIP_BITS(name, gb, num) SKIP_BITS(name, gb, num)
+#   define LAST_SKIP_BITS(name, gb, num)  SKIP_BITS(name, gb, num)
 #   define LAST_SKIP_CACHE(name, gb, num) SKIP_CACHE(name, gb, num)
 
-#   define SHOW_UBITS(name, gb, num)\
-        NEG_USR32(name##_cache0, num)
+#   define SHOW_UBITS(name, gb, num) NEG_USR32(name##_cache0, num)
 
-#   define SHOW_SBITS(name, gb, num)\
-        NEG_SSR32(name##_cache0, num)
+#   define SHOW_SBITS(name, gb, num) NEG_SSR32(name##_cache0, num)
 
-#   define GET_CACHE(name, gb)\
-        (name##_cache0)
+#   define GET_CACHE(name, gb) name##_cache0
 
-static inline int get_bits_count(const GetBitContext *s){
+static inline int get_bits_count(const GetBitContext *s) {
     return ((uint8_t*)s->buffer_ptr - s->buffer)*8 - 32 + s->bit_count;
 }
 
@@ -257,7 +240,7 @@ static inline void skip_bits_long(GetBitContext *s, int n){
     re_bit_count += n;
     re_buffer_ptr += re_bit_count>>5;
     re_bit_count &= 31;
-    re_cache0 = av_be2ne32( re_buffer_ptr[-1] ) << re_bit_count;
+    re_cache0 = av_be2ne32(re_buffer_ptr[-1]) << re_bit_count;
     re_cache1 = 0;
     UPDATE_CACHE(re, s);
     CLOSE_READER(re, s);
@@ -276,8 +259,8 @@ static inline int get_xbits(GetBitContext *s, int n){
     register int32_t cache;
     OPEN_READER(re, s);
     UPDATE_CACHE(re, s);
-    cache = GET_CACHE(re,s);
-    sign=(~cache)>>31;
+    cache = GET_CACHE(re, s);
+    sign = ~cache >> 31;
     LAST_SKIP_BITS(re, s, n);
     CLOSE_READER(re, s);
     return (NEG_USR32(sign ^ cache, n) ^ sign) - sign;
@@ -287,7 +270,7 @@ static inline int get_sbits(GetBitContext *s, int n){
     register int tmp;
     OPEN_READER(re, s);
     UPDATE_CACHE(re, s);
-    tmp= SHOW_SBITS(re, s, n);
+    tmp = SHOW_SBITS(re, s, n);
     LAST_SKIP_BITS(re, s, n);
     CLOSE_READER(re, s);
     return tmp;
@@ -300,7 +283,7 @@ static inline unsigned int get_bits(GetBitContext *s, int n){
     register int tmp;
     OPEN_READER(re, s);
     UPDATE_CACHE(re, s);
-    tmp= SHOW_UBITS(re, s, n);
+    tmp = SHOW_UBITS(re, s, n);
     LAST_SKIP_BITS(re, s, n);
     CLOSE_READER(re, s);
     return tmp;
@@ -313,8 +296,7 @@ static inline unsigned int show_bits(GetBitContext *s, int n){
     register int tmp;
     OPEN_READER(re, s);
     UPDATE_CACHE(re, s);
-    tmp= SHOW_UBITS(re, s, n);
-//    CLOSE_READER(re, s)
+    tmp = SHOW_UBITS(re, s, n);
     return tmp;
 }
 
@@ -328,17 +310,17 @@ static inline void skip_bits(GetBitContext *s, int n){
 
 static inline unsigned int get_bits1(GetBitContext *s){
 #ifdef ALT_BITSTREAM_READER
-    unsigned int index= s->index;
-    uint8_t result= s->buffer[ index>>3 ];
+    unsigned int index = s->index;
+    uint8_t result = s->buffer[index>>3];
 #ifdef ALT_BITSTREAM_READER_LE
-    result>>= (index&0x07);
-    result&= 1;
+    result >>= index & 7;
+    result &= 1;
 #else
-    result<<= (index&0x07);
-    result>>= 8 - 1;
+    result <<= index & 7;
+    result >>= 8 - 1;
 #endif
     index++;
-    s->index= index;
+    s->index = index;
 
     return result;
 #else
@@ -358,13 +340,13 @@ static inline void skip_bits1(GetBitContext *s){
  * reads 0-32 bits.
  */
 static inline unsigned int get_bits_long(GetBitContext *s, int n){
-    if(n<=MIN_CACHE_BITS) return get_bits(s, n);
-    else{
+    if (n <= MIN_CACHE_BITS) return get_bits(s, n);
+    else {
 #ifdef ALT_BITSTREAM_READER_LE
-        int ret= get_bits(s, 16);
+        int ret = get_bits(s, 16);
         return ret | (get_bits(s, n-16) << 16);
 #else
-        int ret= get_bits(s, 16) << (n-16);
+        int ret = get_bits(s, 16) << (n-16);
         return ret | get_bits(s, n-16);
 #endif
     }
@@ -381,17 +363,17 @@ static inline int get_sbits_long(GetBitContext *s, int n) {
  * shows 0-32 bits.
  */
 static inline unsigned int show_bits_long(GetBitContext *s, int n){
-    if(n<=MIN_CACHE_BITS) return show_bits(s, n);
-    else{
-        GetBitContext gb= *s;
+    if (n <= MIN_CACHE_BITS) return show_bits(s, n);
+    else {
+        GetBitContext gb = *s;
         return get_bits_long(&gb, n);
     }
 }
 
 static inline int check_marker(GetBitContext *s, const char *msg)
 {
-    int bit= get_bits1(s);
-    if(!bit)
+    int bit = get_bits1(s);
+    if (!bit)
         av_log(NULL, AV_LOG_INFO, "Marker bit missing %s\n", msg);
 
     return bit;
@@ -409,38 +391,38 @@ static inline int check_marker(GetBitContext *s, const char *msg)
 static inline void init_get_bits(GetBitContext *s,
                    const uint8_t *buffer, int bit_size)
 {
-    int buffer_size= (bit_size+7)>>3;
-    if(buffer_size < 0 || bit_size < 0) {
+    int buffer_size = (bit_size+7)>>3;
+    if (buffer_size < 0 || bit_size < 0) {
         buffer_size = bit_size = 0;
         buffer = NULL;
     }
 
-    s->buffer= buffer;
-    s->size_in_bits= bit_size;
-    s->buffer_end= buffer + buffer_size;
+    s->buffer       = buffer;
+    s->size_in_bits = bit_size;
+    s->buffer_end   = buffer + buffer_size;
 #ifdef ALT_BITSTREAM_READER
-    s->index=0;
+    s->index        = 0;
 #elif defined A32_BITSTREAM_READER
-    s->buffer_ptr = (uint32_t*)((intptr_t)buffer&(~3));
-    s->bit_count = 32 + 8*((intptr_t)buffer&3);
+    s->buffer_ptr   = (uint32_t*)((intptr_t)buffer & ~3);
+    s->bit_count    = 32 +     8*((intptr_t)buffer &  3);
     skip_bits_long(s, 0);
 #endif
 }
 
 static inline void align_get_bits(GetBitContext *s)
 {
-    int n= (-get_bits_count(s)) & 7;
-    if(n) skip_bits(s, n);
+    int n = -get_bits_count(s) & 7;
+    if (n) skip_bits(s, n);
 }
 
-#define init_vlc(vlc, nb_bits, nb_codes,\
-                 bits, bits_wrap, bits_size,\
-                 codes, codes_wrap, codes_size,\
-                 flags)\
-        init_vlc_sparse(vlc, nb_bits, nb_codes,\
-                 bits, bits_wrap, bits_size,\
-                 codes, codes_wrap, codes_size,\
-                 NULL, 0, 0, flags)
+#define init_vlc(vlc, nb_bits, nb_codes,                \
+                 bits, bits_wrap, bits_size,            \
+                 codes, codes_wrap, codes_size,         \
+                 flags)                                 \
+        init_vlc_sparse(vlc, nb_bits, nb_codes,         \
+                        bits, bits_wrap, bits_size,     \
+                        codes, codes_wrap, codes_size,  \
+                        NULL, 0, 0, flags)
 
 int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
              const void *bits, int bits_wrap, int bits_size,
@@ -451,13 +433,12 @@ int init_vlc_sparse(VLC *vlc, int nb_bits, int nb_codes,
 #define INIT_VLC_USE_NEW_STATIC 4
 void free_vlc(VLC *vlc);
 
-#define INIT_VLC_STATIC(vlc, bits, a,b,c,d,e,f,g, static_size)\
-do {\
-    static VLC_TYPE table[static_size][2];\
-    (vlc)->table= table;\
-    (vlc)->table_allocated= static_size;\
-    init_vlc(vlc, bits, a,b,c,d,e,f,g, INIT_VLC_USE_NEW_STATIC);\
-} while (0)
+#define INIT_VLC_STATIC(vlc, bits, a,b,c,d,e,f,g, static_size) do {     \
+        static VLC_TYPE table[static_size][2];                          \
+        (vlc)->table = table;                                           \
+        (vlc)->table_allocated = static_size;                           \
+        init_vlc(vlc, bits, a,b,c,d,e,f,g, INIT_VLC_USE_NEW_STATIC);    \
+    } while (0)
 
 
 /**
@@ -466,62 +447,60 @@ do {\
  * If the vlc code is invalid and max_depth>1, then the number of bits removed
  * is undefined.
  */
-#define GET_VLC(code, name, gb, table, bits, max_depth)\
-do {\
-    int n, nb_bits;\
-    unsigned int index;\
-\
-    index= SHOW_UBITS(name, gb, bits);\
-    code = table[index][0];\
-    n    = table[index][1];\
-\
-    if(max_depth > 1 && n < 0){\
-        LAST_SKIP_BITS(name, gb, bits);\
-        UPDATE_CACHE(name, gb);\
-\
-        nb_bits = -n;\
-\
-        index= SHOW_UBITS(name, gb, nb_bits) + code;\
-        code = table[index][0];\
-        n    = table[index][1];\
-        if(max_depth > 2 && n < 0){\
-            LAST_SKIP_BITS(name, gb, nb_bits);\
-            UPDATE_CACHE(name, gb);\
-\
-            nb_bits = -n;\
-\
-            index= SHOW_UBITS(name, gb, nb_bits) + code;\
-            code = table[index][0];\
-            n    = table[index][1];\
-        }\
-    }\
-    SKIP_BITS(name, gb, n);\
-} while (0)
-
-#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update)\
-do {\
-    int n, nb_bits;\
-    unsigned int index;\
-\
-    index= SHOW_UBITS(name, gb, bits);\
-    level = table[index].level;\
-    n     = table[index].len;\
-\
-    if(max_depth > 1 && n < 0){\
-        SKIP_BITS(name, gb, bits);\
-        if(need_update){\
-            UPDATE_CACHE(name, gb);\
-        }\
-\
-        nb_bits = -n;\
-\
-        index= SHOW_UBITS(name, gb, nb_bits) + level;\
-        level = table[index].level;\
-        n     = table[index].len;\
-    }\
-    run= table[index].run;\
-    SKIP_BITS(name, gb, n);\
-} while (0)
+#define GET_VLC(code, name, gb, table, bits, max_depth) do {    \
+        int n, nb_bits;                                         \
+        unsigned int index;                                     \
+                                                                \
+        index = SHOW_UBITS(name, gb, bits);                     \
+        code  = table[index][0];                                \
+        n     = table[index][1];                                \
+                                                                \
+        if (max_depth > 1 && n < 0) {                           \
+            LAST_SKIP_BITS(name, gb, bits);                     \
+            UPDATE_CACHE(name, gb);                             \
+                                                                \
+            nb_bits = -n;                                       \
+                                                                \
+            index = SHOW_UBITS(name, gb, nb_bits) + code;       \
+            code  = table[index][0];                            \
+            n     = table[index][1];                            \
+            if (max_depth > 2 && n < 0) {                       \
+                LAST_SKIP_BITS(name, gb, nb_bits);              \
+                UPDATE_CACHE(name, gb);                         \
+                                                                \
+                nb_bits = -n;                                   \
+                                                                \
+                index = SHOW_UBITS(name, gb, nb_bits) + code;   \
+                code  = table[index][0];                        \
+                n     = table[index][1];                        \
+            }                                                   \
+        }                                                       \
+        SKIP_BITS(name, gb, n);                                 \
+    } while (0)
+
+#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update) do { \
+        int n, nb_bits;                                                 \
+        unsigned int index;                                             \
+                                                                        \
+        index = SHOW_UBITS(name, gb, bits);                             \
+        level = table[index].level;                                     \
+        n     = table[index].len;                                       \
+                                                                        \
+        if (max_depth > 1 && n < 0) {                                   \
+            SKIP_BITS(name, gb, bits);                                  \
+            if (need_update) {                                          \
+                UPDATE_CACHE(name, gb);                                 \
+            }                                                           \
+                                                                        \
+            nb_bits = -n;                                               \
+                                                                        \
+            index = SHOW_UBITS(name, gb, nb_bits) + level;              \
+            level = table[index].level;                                 \
+            n     = table[index].len;                                   \
+        }                                                               \
+        run = table[index].run;                                         \
+        SKIP_BITS(name, gb, n);                                         \
+    } while (0)
 
 
 /**
@@ -552,38 +531,45 @@ static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE (*table)[2],
 static inline void print_bin(int bits, int n){
     int i;
 
-    for(i=n-1; i>=0; i--){
+    for (i = n-1; i >= 0; i--) {
         av_log(NULL, AV_LOG_DEBUG, "%d", (bits>>i)&1);
     }
-    for(i=n; i<24; i++)
+    for (i = n; i < 24; i++)
         av_log(NULL, AV_LOG_DEBUG, " ");
 }
 
-static inline int get_bits_trace(GetBitContext *s, int n, char *file, const char *func, int line){
-    int r= get_bits(s, n);
+static inline int get_bits_trace(GetBitContext *s, int n, char *file,
+                                 const char *func, int line){
+    int r = get_bits(s, n);
 
     print_bin(r, n);
-    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d bit @%5d in %s %s:%d\n", r, n, r, get_bits_count(s)-n, file, func, line);
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d bit @%5d in %s %s:%d\n",
+           r, n, r, get_bits_count(s)-n, file, func, line);
     return r;
 }
-static inline int get_vlc_trace(GetBitContext *s, VLC_TYPE (*table)[2], int bits, int max_depth, char *file, const char *func, int line){
-    int show= show_bits(s, 24);
-    int pos= get_bits_count(s);
-    int r= get_vlc2(s, table, bits, max_depth);
-    int len= get_bits_count(s) - pos;
-    int bits2= show>>(24-len);
+static inline int get_vlc_trace(GetBitContext *s, VLC_TYPE (*table)[2],
+                                int bits, int max_depth, char *file,
+                                const char *func, int line){
+    int show  = show_bits(s, 24);
+    int pos   = get_bits_count(s);
+    int r     = get_vlc2(s, table, bits, max_depth);
+    int len   = get_bits_count(s) - pos;
+    int bits2 = show >> (24-len);
 
     print_bin(bits2, len);
 
-    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d vlc @%5d in %s %s:%d\n", bits2, len, r, pos, file, func, line);
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d vlc @%5d in %s %s:%d\n",
+           bits2, len, r, pos, file, func, line);
     return r;
 }
-static inline int get_xbits_trace(GetBitContext *s, int n, char *file, const char *func, int line){
-    int show= show_bits(s, n);
-    int r= get_xbits(s, n);
+static inline int get_xbits_trace(GetBitContext *s, int n, char *file,
+                                  const char *func, int line){
+    int show = show_bits(s, n);
+    int r    = get_xbits(s, n);
 
     print_bin(show, n);
-    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d xbt @%5d in %s %s:%d\n", show, n, r, get_bits_count(s)-n, file, func, line);
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d xbt @%5d in %s %s:%d\n",
+           show, n, r, get_bits_count(s)-n, file, func, line);
     return r;
 }
 




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