libavcodec/aacenc.c:179: error: Null Dereference
  pointer `&pb->buf_ptr` last assigned on line 168 could be null and is dereferenced by call to `put_bits()` at line 179, column 5.

libavcodec/aacenc.c:163:1: start of procedure put_audio_specific_config()
161.  * @see 1.6.2.1 "Syntax - AudioSpecificConfig"
162.  */
163. static void put_audio_specific_config(AVCodecContext *avctx)
     ^
164. {
165.     PutBitContext pb;

libavcodec/aacenc.c:166:5: 
164. {
165.     PutBitContext pb;
166.     AACEncContext *s = avctx->priv_data;
         ^
167. 
168.     init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);

libavcodec/aacenc.c:168:5: 
166.     AACEncContext *s = avctx->priv_data;
167. 
168.     init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);
         ^
169.     put_bits(&pb, 5, 2); //object type - AAC-LC
170.     put_bits(&pb, 4, s->samplerate_index); //sample rate index

libavcodec/put_bits.h:52:1: start of procedure init_put_bits()
  50.  * @param buffer_size the size in bytes of buffer
  51.  */
  52. static inline void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
      ^
  53. {
  54.     if(buffer_size < 0) {

libavcodec/put_bits.h:54:8: Taking true branch
  52. static inline void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
  53. {
  54.     if(buffer_size < 0) {
             ^
  55.         buffer_size = 0;
  56.         buffer = NULL;

libavcodec/put_bits.h:55:9: 
  53. {
  54.     if(buffer_size < 0) {
  55.         buffer_size = 0;
              ^
  56.         buffer = NULL;
  57.     }

libavcodec/put_bits.h:56:9: 
  54.     if(buffer_size < 0) {
  55.         buffer_size = 0;
  56.         buffer = NULL;
              ^
  57.     }
  58. 

libavcodec/put_bits.h:59:5: 
  57.     }
  58. 
  59.     s->size_in_bits= 8*buffer_size;
          ^
  60.     s->buf = buffer;
  61.     s->buf_end = s->buf + buffer_size;

libavcodec/put_bits.h:60:5: 
  58. 
  59.     s->size_in_bits= 8*buffer_size;
  60.     s->buf = buffer;
          ^
  61.     s->buf_end = s->buf + buffer_size;
  62.     s->buf_ptr = s->buf;

libavcodec/put_bits.h:61:5: 
  59.     s->size_in_bits= 8*buffer_size;
  60.     s->buf = buffer;
  61.     s->buf_end = s->buf + buffer_size;
          ^
  62.     s->buf_ptr = s->buf;
  63.     s->bit_left=32;

libavcodec/put_bits.h:62:5: 
  60.     s->buf = buffer;
  61.     s->buf_end = s->buf + buffer_size;
  62.     s->buf_ptr = s->buf;
          ^
  63.     s->bit_left=32;
  64.     s->bit_buf=0;

libavcodec/put_bits.h:63:5: 
  61.     s->buf_end = s->buf + buffer_size;
  62.     s->buf_ptr = s->buf;
  63.     s->bit_left=32;
          ^
  64.     s->bit_buf=0;
  65. }

libavcodec/put_bits.h:64:5: 
  62.     s->buf_ptr = s->buf;
  63.     s->bit_left=32;
  64.     s->bit_buf=0;
          ^
  65. }
  66. 

libavcodec/put_bits.h:65:1: return from a call to init_put_bits
  63.     s->bit_left=32;
  64.     s->bit_buf=0;
  65. }
      ^
  66. 
  67. /**

libavcodec/aacenc.c:169:5: 
167. 
168.     init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);
169.     put_bits(&pb, 5, 2); //object type - AAC-LC
         ^
170.     put_bits(&pb, 4, s->samplerate_index); //sample rate index
171.     put_bits(&pb, 4, s->channels);

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:170:5: 
168.     init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);
169.     put_bits(&pb, 5, 2); //object type - AAC-LC
170.     put_bits(&pb, 4, s->samplerate_index); //sample rate index
         ^
171.     put_bits(&pb, 4, s->channels);
172.     //GASpecificConfig

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:171:5: 
169.     put_bits(&pb, 5, 2); //object type - AAC-LC
170.     put_bits(&pb, 4, s->samplerate_index); //sample rate index
171.     put_bits(&pb, 4, s->channels);
         ^
172.     //GASpecificConfig
173.     put_bits(&pb, 1, 0); //frame length - 1024 samples

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:173:5: 
171.     put_bits(&pb, 4, s->channels);
172.     //GASpecificConfig
173.     put_bits(&pb, 1, 0); //frame length - 1024 samples
         ^
174.     put_bits(&pb, 1, 0); //does not depend on core coder
175.     put_bits(&pb, 1, 0); //is not extension

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:174:5: 
172.     //GASpecificConfig
173.     put_bits(&pb, 1, 0); //frame length - 1024 samples
174.     put_bits(&pb, 1, 0); //does not depend on core coder
         ^
175.     put_bits(&pb, 1, 0); //is not extension
176. 

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:175:5: 
173.     put_bits(&pb, 1, 0); //frame length - 1024 samples
174.     put_bits(&pb, 1, 0); //does not depend on core coder
175.     put_bits(&pb, 1, 0); //is not extension
         ^
176. 
177.     //Explicitly Mark SBR absent

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:178:5: 
176. 
177.     //Explicitly Mark SBR absent
178.     put_bits(&pb, 11, 0x2b7); //sync extension
         ^
179.     put_bits(&pb, 5,  AOT_SBR);
180.     put_bits(&pb, 1,  0);

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking true branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:152:9: 
  150. #else
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
               ^
  153.         bit_left-=n;
  154.     } else {

libavcodec/put_bits.h:153:9: 
  151.     if (n < bit_left) {
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;
               ^
  154.     } else {
  155.         bit_buf<<=bit_left;

libavcodec/put_bits.h:165:5: 
  163. #endif
  164. 
  165.     s->bit_buf = bit_buf;
           ^
  166.     s->bit_left = bit_left;
  167. }

libavcodec/put_bits.h:166:5: 
  164. 
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
           ^
  167. }
  168. 

libavcodec/put_bits.h:167:1: return from a call to put_bits
  165.     s->bit_buf = bit_buf;
  166.     s->bit_left = bit_left;
  167. }
       ^
  168. 
  169. static inline void put_sbits(PutBitContext *pb, int n, int32_t value)

libavcodec/aacenc.c:179:5: 
177.     //Explicitly Mark SBR absent
178.     put_bits(&pb, 11, 0x2b7); //sync extension
179.     put_bits(&pb, 5,  AOT_SBR);
         ^
180.     put_bits(&pb, 1,  0);
181.     flush_put_bits(&pb);

libavcodec/put_bits.h:128:1: start of procedure put_bits()
  126.  * Use put_bits32 to write 32 bits.
  127.  */
  128. static inline void put_bits(PutBitContext *s, int n, unsigned int value)
       ^
  129. {
  130.     unsigned int bit_buf;

libavcodec/put_bits.h:134:5: 
  132. 
  133.     //    printf("put_bits=%d %x\n", n, value);
  134.     assert(n <= 31 && value < (1U << n));
           ^
  135. 
  136.     bit_buf = s->bit_buf;

libavcodec/put_bits.h:136:5: 
  134.     assert(n <= 31 && value < (1U << n));
  135. 
  136.     bit_buf = s->bit_buf;
           ^
  137.     bit_left = s->bit_left;
  138. 

libavcodec/put_bits.h:137:5: 
  135. 
  136.     bit_buf = s->bit_buf;
  137.     bit_left = s->bit_left;
           ^
  138. 
  139.     //    printf("n=%d value=%x cnt=%d buf=%x\n", n, value, bit_cnt, bit_buf);

libavcodec/put_bits.h:151:9: Taking false branch
  149.     bit_left-=n;
  150. #else
  151.     if (n < bit_left) {
               ^
  152.         bit_buf = (bit_buf<<n) | value;
  153.         bit_left-=n;

libavcodec/put_bits.h:155:9: 
  153.         bit_left-=n;
  154.     } else {
  155.         bit_buf<<=bit_left;
               ^
  156.         bit_buf |= value >> (n - bit_left);
  157.         AV_WB32(s->buf_ptr, bit_buf);

libavcodec/put_bits.h:156:9: 
  154.     } else {
  155.         bit_buf<<=bit_left;
  156.         bit_buf |= value >> (n - bit_left);
               ^
  157.         AV_WB32(s->buf_ptr, bit_buf);
  158.         //printf("bitbuf = %08x\n", bit_buf);

libavcodec/put_bits.h:157:9: 
  155.         bit_buf<<=bit_left;
  156.         bit_buf |= value >> (n - bit_left);
  157.         AV_WB32(s->buf_ptr, bit_buf);
               ^
  158.         //printf("bitbuf = %08x\n", bit_buf);
  159.         s->buf_ptr+=4;

static void put_audio_specific_config(AVCodecContext *avctx)
{
    PutBitContext pb;
    AACEncContext *s = avctx->priv_data;
    init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);
    put_bits(&pb, 5, 2);
    put_bits(&pb, 4, s->samplerate_index);
    put_bits(&pb, 4, s->channels);
    put_bits(&pb, 1, 0);
    put_bits(&pb, 1, 0);
    put_bits(&pb, 1, 0);
    put_bits(&pb, 11, 0x2b7);
    put_bits(&pb, 5,  AOT_SBR);
    put_bits(&pb, 1,  0);
    flush_put_bits(&pb);
}
['static void put_audio_specific_config(AVCodecContext *avctx)\n{\n    PutBitContext pb;\n    AACEncContext *s = avctx->priv_data;\n    init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);\n    put_bits(&pb, 5, 2);\n    put_bits(&pb, 4, s->samplerate_index);\n    put_bits(&pb, 4, s->channels);\n    put_bits(&pb, 1, 0);\n    put_bits(&pb, 1, 0);\n    put_bits(&pb, 1, 0);\n    put_bits(&pb, 11, 0x2b7);\n    put_bits(&pb, 5,  AOT_SBR);\n    put_bits(&pb, 1,  0);\n    flush_put_bits(&pb);\n}', 'static inline void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)\n{\n    if(buffer_size < 0) {\n        buffer_size = 0;\n        buffer = NULL;\n    }\n    s->size_in_bits= 8*buffer_size;\n    s->buf = buffer;\n    s->buf_end = s->buf + buffer_size;\n    s->buf_ptr = s->buf;\n    s->bit_left=32;\n    s->bit_buf=0;\n}', 'static inline void put_bits(PutBitContext *s, int n, unsigned int value)\n{\n    unsigned int bit_buf;\n    int bit_left;\n    assert(n <= 31 && value < (1U << n));\n    bit_buf = s->bit_buf;\n    bit_left = s->bit_left;\n#ifdef BITSTREAM_WRITER_LE\n    bit_buf |= value << (32 - bit_left);\n    if (n >= bit_left) {\n        AV_WL32(s->buf_ptr, bit_buf);\n        s->buf_ptr+=4;\n        bit_buf = (bit_left==32)?0:value >> bit_left;\n        bit_left+=32;\n    }\n    bit_left-=n;\n#else\n    if (n < bit_left) {\n        bit_buf = (bit_buf<<n) | value;\n        bit_left-=n;\n    } else {\n        bit_buf<<=bit_left;\n        bit_buf |= value >> (n - bit_left);\n        AV_WB32(s->buf_ptr, bit_buf);\n        s->buf_ptr+=4;\n        bit_left+=32 - n;\n        bit_buf = value;\n    }\n#endif\n    s->bit_buf = bit_buf;\n    s->bit_left = bit_left;\n}']