golomb: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>

1 files changed, 178 insertions, 136 deletions

diff --git a/libavcodec/golomb.h b/libavcodec/golomb.h
index 564ba4e773..22ab5cb6ce 100644
--- a/libavcodec/golomb.h
+++ b/libavcodec/golomb.h
@@ -31,6 +31,7 @@
 #define AVCODEC_GOLOMB_H
 
 #include <stdint.h>
+
 #include "get_bits.h"
 #include "put_bits.h"
 
@@ -46,27 +47,27 @@ extern const uint8_t ff_interleaved_ue_golomb_vlc_code[256];
 extern const  int8_t ff_interleaved_se_golomb_vlc_code[256];
 extern const uint8_t ff_interleaved_dirac_golomb_vlc_code[256];
 
-
- /**
+/**
  * read unsigned exp golomb code.
  */
-static inline int get_ue_golomb(GetBitContext *gb){
+static inline int get_ue_golomb(GetBitContext *gb)
+{
     unsigned int buf;
     int log;
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
-    if(buf >= (1<<27)){
+    if (buf >= (1 << 27)) {
         buf >>= 32 - 9;
         LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
         CLOSE_READER(re, gb);
 
         return ff_ue_golomb_vlc_code[buf];
-    }else{
-        log= 2*av_log2(buf) - 31;
-        buf>>= log;
+    } else {
+        log = 2 * av_log2(buf) - 31;
+        buf >>= log;
         buf--;
         LAST_SKIP_BITS(re, gb, 32 - log);
         CLOSE_READER(re, gb);
@@ -89,16 +90,17 @@ static inline unsigned get_ue_golomb_long(GetBitContext *gb)
     return get_bits_long(gb, log + 1) - 1;
 }
 
- /**
+/**
  * read unsigned exp golomb code, constraint to a max of 31.
  * the return value is undefined if the stored value exceeds 31.
  */
-static inline int get_ue_golomb_31(GetBitContext *gb){
+static inline int get_ue_golomb_31(GetBitContext *gb)
+{
     unsigned int buf;
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
     buf >>= 32 - 9;
     LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
@@ -113,24 +115,25 @@ static inline unsigned svq3_get_ue_golomb(GetBitContext *gb)
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
-    if(buf&0xAA800000){
+    if (buf & 0xAA800000) {
         buf >>= 32 - 8;
         LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
         CLOSE_READER(re, gb);
 
         return ff_interleaved_ue_golomb_vlc_code[buf];
-    }else{
+    } else {
         unsigned ret = 1;
 
         do {
             buf >>= 32 - 8;
-            LAST_SKIP_BITS(re, gb, FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
+            LAST_SKIP_BITS(re, gb,
+                           FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
 
-            if (ff_interleaved_golomb_vlc_len[buf] != 9){
+            if (ff_interleaved_golomb_vlc_len[buf] != 9) {
                 ret <<= (ff_interleaved_golomb_vlc_len[buf] - 1) >> 1;
-                ret |= ff_interleaved_dirac_golomb_vlc_code[buf];
+                ret  |= ff_interleaved_dirac_golomb_vlc_code[buf];
                 break;
             }
             ret = (ret << 4) | ff_interleaved_dirac_golomb_vlc_code[buf];
@@ -146,90 +149,100 @@ static inline unsigned svq3_get_ue_golomb(GetBitContext *gb)
 /**
  * read unsigned truncated exp golomb code.
  */
-static inline int get_te0_golomb(GetBitContext *gb, int range){
+static inline int get_te0_golomb(GetBitContext *gb, int range)
+{
     assert(range >= 1);
 
-    if(range==1)      return 0;
-    else if(range==2) return get_bits1(gb)^1;
-    else              return get_ue_golomb(gb);
+    if (range == 1)
+        return 0;
+    else if (range == 2)
+        return get_bits1(gb) ^ 1;
+    else
+        return get_ue_golomb(gb);
 }
 
 /**
  * read unsigned truncated exp golomb code.
  */
-static inline int get_te_golomb(GetBitContext *gb, int range){
+static inline int get_te_golomb(GetBitContext *gb, int range)
+{
     assert(range >= 1);
 
-    if(range==2) return get_bits1(gb)^1;
-    else         return get_ue_golomb(gb);
+    if (range == 2)
+        return get_bits1(gb) ^ 1;
+    else
+        return get_ue_golomb(gb);
 }
 
-
 /**
  * read signed exp golomb code.
  */
-static inline int get_se_golomb(GetBitContext *gb){
+static inline int get_se_golomb(GetBitContext *gb)
+{
     unsigned int buf;
     int log;
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
-    if(buf >= (1<<27)){
+    if (buf >= (1 << 27)) {
         buf >>= 32 - 9;
         LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
         CLOSE_READER(re, gb);
 
         return ff_se_golomb_vlc_code[buf];
-    }else{
-        log= 2*av_log2(buf) - 31;
-        buf>>= log;
+    } else {
+        log = 2 * av_log2(buf) - 31;
+        buf >>= log;
 
         LAST_SKIP_BITS(re, gb, 32 - log);
         CLOSE_READER(re, gb);
 
-        if(buf&1) buf= -(buf>>1);
-        else      buf=  (buf>>1);
+        if (buf & 1)
+            buf = -(buf >> 1);
+        else
+            buf = (buf >> 1);
 
         return buf;
     }
 }
 
-static inline int svq3_get_se_golomb(GetBitContext *gb){
+static inline int svq3_get_se_golomb(GetBitContext *gb)
+{
     unsigned int buf;
     int log;
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
-    if(buf&0xAA800000){
+    if (buf & 0xAA800000) {
         buf >>= 32 - 8;
         LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
         CLOSE_READER(re, gb);
 
         return ff_interleaved_se_golomb_vlc_code[buf];
-    }else{
+    } else {
         LAST_SKIP_BITS(re, gb, 8);
         UPDATE_CACHE(re, gb);
         buf |= 1 | (GET_CACHE(re, gb) >> 8);
 
-        if((buf & 0xAAAAAAAA) == 0)
+        if ((buf & 0xAAAAAAAA) == 0)
             return INVALID_VLC;
 
-        for(log=31; (buf & 0x80000000) == 0; log--){
+        for (log = 31; (buf & 0x80000000) == 0; log--)
             buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
-        }
 
-        LAST_SKIP_BITS(re, gb, 63 - 2*log - 8);
+        LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);
         CLOSE_READER(re, gb);
 
         return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
     }
 }
 
-static inline int dirac_get_se_golomb(GetBitContext *gb){
+static inline int dirac_get_se_golomb(GetBitContext *gb)
+{
     uint32_t buf;
     uint32_t ret;
 
@@ -250,24 +263,26 @@ static inline int dirac_get_se_golomb(GetBitContext *gb){
 /**
  * read unsigned golomb rice code (ffv1).
  */
-static inline int get_ur_golomb(GetBitContext *gb, int k, int limit, int esc_len){
+static inline int get_ur_golomb(GetBitContext *gb, int k, int limit,
+                                int esc_len)
+{
     unsigned int buf;
     int log;
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
-    log= av_log2(buf);
+    log = av_log2(buf);
 
-    if(log > 31-limit){
+    if (log > 31 - limit) {
         buf >>= log - k;
-        buf += (30-log)<<k;
+        buf  += (30 - log) << k;
         LAST_SKIP_BITS(re, gb, 32 + k - log);
         CLOSE_READER(re, gb);
 
         return buf;
-    }else{
+    } else {
         LAST_SKIP_BITS(re, gb, limit);
         UPDATE_CACHE(re, gb);
 
@@ -283,24 +298,27 @@ static inline int get_ur_golomb(GetBitContext *gb, int k, int limit, int esc_len
 /**
  * read unsigned golomb rice code (jpegls).
  */
-static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit, int esc_len){
+static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit,
+                                       int esc_len)
+{
     unsigned int buf;
     int log;
 
     OPEN_READER(re, gb);
     UPDATE_CACHE(re, gb);
-    buf=GET_CACHE(re, gb);
+    buf = GET_CACHE(re, gb);
 
-    log= av_log2(buf);
+    log = av_log2(buf);
 
-    if(log - k >= 32-MIN_CACHE_BITS+(MIN_CACHE_BITS==32) && 32-log < limit){
+    if (log - k >= 32 - MIN_CACHE_BITS + (MIN_CACHE_BITS == 32) &&
+        32 - log < limit) {
         buf >>= log - k;
-        buf += (30-log)<<k;
+        buf  += (30 - log) << k;
         LAST_SKIP_BITS(re, gb, 32 + k - log);
         CLOSE_READER(re, gb);
 
         return buf;
-    }else{
+    } else {
         int i;
         for (i = 0; i < limit && SHOW_UBITS(re, gb, 1) == 0 && HAVE_BITS_REMAINING(re, gb); i++) {
             LAST_SKIP_BITS(re, gb, 1);
@@ -308,23 +326,23 @@ static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit, int
         }
         SKIP_BITS(re, gb, 1);
 
-        if(i < limit - 1){
-            if(k){
+        if (i < limit - 1) {
+            if (k) {
                 buf = SHOW_UBITS(re, gb, k);
                 LAST_SKIP_BITS(re, gb, k);
-            }else{
-                buf=0;
+            } else {
+                buf = 0;
             }
 
             CLOSE_READER(re, gb);
-            return buf + (i<<k);
-        }else if(i == limit - 1){
+            return buf + (i << k);
+        } else if (i == limit - 1) {
             buf = SHOW_UBITS(re, gb, esc_len);
             LAST_SKIP_BITS(re, gb, esc_len);
             CLOSE_READER(re, gb);
 
             return buf + 1;
-        }else
+        } else
             return -1;
     }
 }
@@ -332,12 +350,16 @@ static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit, int
 /**
  * read signed golomb rice code (ffv1).
  */
-static inline int get_sr_golomb(GetBitContext *gb, int k, int limit, int esc_len){
-    int v= get_ur_golomb(gb, k, limit, esc_len);
+static inline int get_sr_golomb(GetBitContext *gb, int k, int limit,
+                                int esc_len)
+{
+    int v = get_ur_golomb(gb, k, limit, esc_len);
 
     v++;
-    if (v&1) return v>>1;
-    else return -(v>>1);
+    if (v & 1)
+        return v >> 1;
+    else
+        return -(v >> 1);
 
 //    return (v>>1) ^ -(v&1);
 }
@@ -345,22 +367,25 @@ static inline int get_sr_golomb(GetBitContext *gb, int k, int limit, int esc_len
 /**
  * read signed golomb rice code (flac).
  */
-static inline int get_sr_golomb_flac(GetBitContext *gb, int k, int limit, int esc_len){
-    int v= get_ur_golomb_jpegls(gb, k, limit, esc_len);
-    return (v>>1) ^ -(v&1);
+static inline int get_sr_golomb_flac(GetBitContext *gb, int k, int limit,
+                                     int esc_len)
+{
+    int v = get_ur_golomb_jpegls(gb, k, limit, esc_len);
+    return (v >> 1) ^ -(v & 1);
 }
 
 /**
  * read unsigned golomb rice code (shorten).
  */
-static inline unsigned int get_ur_golomb_shorten(GetBitContext *gb, int k){
-        return get_ur_golomb_jpegls(gb, k, INT_MAX, 0);
+static inline unsigned int get_ur_golomb_shorten(GetBitContext *gb, int k)
+{
+    return get_ur_golomb_jpegls(gb, k, INT_MAX, 0);
 }
 
 /**
  * read signed golomb rice code (shorten).
  */
-static inline int get_sr_golomb_shorten(GetBitContext* gb, int k)
+static inline int get_sr_golomb_shorten(GetBitContext *gb, int k)
 {
     int uvar = get_ur_golomb_jpegls(gb, k + 1, INT_MAX, 0);
     if (uvar & 1)
@@ -369,22 +394,21 @@ static inline int get_sr_golomb_shorten(GetBitContext* gb, int k)
         return uvar >> 1;
 }
 
-
-
 #ifdef TRACE
 
 static inline int get_ue(GetBitContext *s, const char *file, const char *func,
                          int line)
 {
-    int show= show_bits(s, 24);
-    int pos= get_bits_count(s);
-    int i= get_ue_golomb(s);
-    int len= get_bits_count(s) - pos;
-    int bits= show>>(24-len);
+    int show = show_bits(s, 24);
+    int pos  = get_bits_count(s);
+    int i    = get_ue_golomb(s);
+    int len  = get_bits_count(s) - pos;
+    int bits = show >> (24 - len);
 
     print_bin(bits, len);
 
-    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d ue  @%5d in %s %s:%d\n", bits, len, i, pos, file, func, line);
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d ue  @%5d in %s %s:%d\n",
+           bits, len, i, pos, file, func, line);
 
     return i;
 }
@@ -392,87 +416,98 @@ static inline int get_ue(GetBitContext *s, const char *file, const char *func,
 static inline int get_se(GetBitContext *s, const char *file, const char *func,
                          int line)
 {
-    int show= show_bits(s, 24);
-    int pos= get_bits_count(s);
-    int i= get_se_golomb(s);
-    int len= get_bits_count(s) - pos;
-    int bits= show>>(24-len);
+    int show = show_bits(s, 24);
+    int pos  = get_bits_count(s);
+    int i    = get_se_golomb(s);
+    int len  = get_bits_count(s) - pos;
+    int bits = show >> (24 - len);
 
     print_bin(bits, len);
 
-    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d se  @%5d in %s %s:%d\n", bits, len, i, pos, file, func, line);
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d se  @%5d in %s %s:%d\n",
+           bits, len, i, pos, file, func, line);
 
     return i;
 }
 
-static inline int get_te(GetBitContext *s, int r, char *file, const char *func, int line){
-    int show= show_bits(s, 24);
-    int pos= get_bits_count(s);
-    int i= get_te0_golomb(s, r);
-    int len= get_bits_count(s) - pos;
-    int bits= show>>(24-len);
+static inline int get_te(GetBitContext *s, int r, char *file, const char *func,
+                         int line)
+{
+    int show = show_bits(s, 24);
+    int pos  = get_bits_count(s);
+    int i    = get_te0_golomb(s, r);
+    int len  = get_bits_count(s) - pos;
+    int bits = show >> (24 - len);
 
     print_bin(bits, len);
 
-    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d te  @%5d in %s %s:%d\n", bits, len, i, pos, file, func, line);
+    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d te  @%5d in %s %s:%d\n",
+           bits, len, i, pos, file, func, line);
 
     return i;
 }
 
 #define get_ue_golomb(a) get_ue(a, __FILE__, __PRETTY_FUNCTION__, __LINE__)
 #define get_se_golomb(a) get_se(a, __FILE__, __PRETTY_FUNCTION__, __LINE__)
-#define get_te_golomb(a, r) get_te(a, r, __FILE__, __PRETTY_FUNCTION__, __LINE__)
+#define get_te_golomb(a, r)  get_te(a, r, __FILE__, __PRETTY_FUNCTION__, __LINE__)
 #define get_te0_golomb(a, r) get_te(a, r, __FILE__, __PRETTY_FUNCTION__, __LINE__)
 
-#endif
+#endif /* TRACE */
 
 /**
  * write unsigned exp golomb code.
  */
-static inline void set_ue_golomb(PutBitContext *pb, int i){
+static inline void set_ue_golomb(PutBitContext *pb, int i)
+{
     int e;
 
-    assert(i>=0);
+    assert(i >= 0);
 
 #if 0
-    if(i=0){
+    if (i = 0) {
         put_bits(pb, 1, 1);
         return;
     }
 #endif
-    if(i<256)
-        put_bits(pb, ff_ue_golomb_len[i], i+1);
-    else{
-        e= av_log2(i+1);
-
-        put_bits(pb, 2*e+1, i+1);
+    if (i < 256)
+        put_bits(pb, ff_ue_golomb_len[i], i + 1);
+    else {
+        e = av_log2(i + 1);
+        put_bits(pb, 2 * e + 1, i + 1);
     }
 }
 
 /**
  * write truncated unsigned exp golomb code.
  */
-static inline void set_te_golomb(PutBitContext *pb, int i, int range){
+static inline void set_te_golomb(PutBitContext *pb, int i, int range)
+{
     assert(range >= 1);
-    assert(i<=range);
+    assert(i <= range);
 
-    if(range==2) put_bits(pb, 1, i^1);
-    else         set_ue_golomb(pb, i);
+    if (range == 2)
+        put_bits(pb, 1, i ^ 1);
+    else
+        set_ue_golomb(pb, i);
 }
 
 /**
  * write signed exp golomb code. 16 bits at most.
  */
-static inline void set_se_golomb(PutBitContext *pb, int i){
+static inline void set_se_golomb(PutBitContext *pb, int i)
+{
 #if 0
-    if(i<=0) i= -2*i;
-    else     i=  2*i-1;
+    if (i <= 0)
+        i = -2 * i;
+    else
+        i = 2 * i - 1;
 #elif 1
-    i= 2*i-1;
-    if(i<0) i^= -1; //FIXME check if gcc does the right thing
+    i = 2 * i - 1;
+    if (i < 0)
+        i ^= -1;    //FIXME check if gcc does the right thing
 #else
-    i= 2*i-1;
-    i^= (i>>31);
+    i  = 2 * i - 1;
+    i ^= (i >> 31);
 #endif
     set_ue_golomb(pb, i);
 }
@@ -480,42 +515,45 @@ static inline void set_se_golomb(PutBitContext *pb, int i){
 /**
  * write unsigned golomb rice code (ffv1).
  */
-static inline void set_ur_golomb(PutBitContext *pb, int i, int k, int limit, int esc_len){
+static inline void set_ur_golomb(PutBitContext *pb, int i, int k, int limit,
+                                 int esc_len)
+{
     int e;
 
-    assert(i>=0);
+    assert(i >= 0);
 
-    e= i>>k;
-    if(e<limit){
-        put_bits(pb, e + k + 1, (1<<k) + (i&((1<<k)-1)));
-    }else{
+    e = i >> k;
+    if (e < limit)
+        put_bits(pb, e + k + 1, (1 << k) + (i & ((1 << k) - 1)));
+    else
         put_bits(pb, limit + esc_len, i - limit + 1);
-    }
 }
 
 /**
  * write unsigned golomb rice code (jpegls).
  */
-static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k, int limit, int esc_len){
+static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k,
+                                        int limit, int esc_len)
+{
     int e;
 
-    assert(i>=0);
+    assert(i >= 0);
 
-    e= (i>>k) + 1;
-    if(e<limit){
-        while(e > 31) {
+    e = (i >> k) + 1;
+    if (e < limit) {
+        while (e > 31) {
             put_bits(pb, 31, 0);
             e -= 31;
         }
         put_bits(pb, e, 1);
-        if(k)
+        if (k)
             put_sbits(pb, k, i);
-    }else{
-        while(limit > 31) {
+    } else {
+        while (limit > 31) {
             put_bits(pb, 31, 0);
             limit -= 31;
         }
-        put_bits(pb, limit  , 1);
+        put_bits(pb, limit, 1);
         put_bits(pb, esc_len, i - 1);
     }
 }
@@ -523,11 +561,13 @@ static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k, int lim
 /**
  * write signed golomb rice code (ffv1).
  */
-static inline void set_sr_golomb(PutBitContext *pb, int i, int k, int limit, int esc_len){
+static inline void set_sr_golomb(PutBitContext *pb, int i, int k, int limit,
+                                 int esc_len)
+{
     int v;
 
-    v = -2*i-1;
-    v ^= (v>>31);
+    v  = -2 * i - 1;
+    v ^= (v >> 31);
 
     set_ur_golomb(pb, v, k, limit, esc_len);
 }
@@ -535,11 +575,13 @@ static inline void set_sr_golomb(PutBitContext *pb, int i, int k, int limit, int
 /**
  * write signed golomb rice code (flac).
  */
-static inline void set_sr_golomb_flac(PutBitContext *pb, int i, int k, int limit, int esc_len){
+static inline void set_sr_golomb_flac(PutBitContext *pb, int i, int k,
+                                      int limit, int esc_len)
+{
     int v;
 
-    v = -2*i-1;
-    v ^= (v>>31);
+    v  = -2 * i - 1;
+    v ^= (v >> 31);
 
     set_ur_golomb_jpegls(pb, v, k, limit, esc_len);
 }