libavcodec/parser.c:195: error: Null Dereference
  pointer `*poutbuf` last assigned on line 193 could be null and is dereferenced by call to `memcpy()` at line 195, column 13.

libavcodec/parser.c:171:1: start of procedure av_parser_change()
169. }
170. 
171. int av_parser_change(AVCodecParserContext *s,
     ^
172.                      AVCodecContext *avctx,
173.                      uint8_t **poutbuf, int *poutbuf_size,

libavcodec/parser.c:176:8: Taking true branch
174.                      const uint8_t *buf, int buf_size, int keyframe){
175. 
176.     if(s && s->parser->split){
            ^
177.         if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
178.             int i= s->parser->split(avctx, buf, buf_size);

libavcodec/parser.c:176:13: Taking true branch
174.                      const uint8_t *buf, int buf_size, int keyframe){
175. 
176.     if(s && s->parser->split){
                 ^
177.         if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
178.             int i= s->parser->split(avctx, buf, buf_size);

libavcodec/parser.c:177:13: Taking true branch
175. 
176.     if(s && s->parser->split){
177.         if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
                 ^
178.             int i= s->parser->split(avctx, buf, buf_size);
179.             buf += i;

libavcodec/parser.c:178:13: Skipping __function_pointer__(): unresolved function pointer
176.     if(s && s->parser->split){
177.         if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
178.             int i= s->parser->split(avctx, buf, buf_size);
                 ^
179.             buf += i;
180.             buf_size -= i;

libavcodec/parser.c:179:13: 
177.         if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
178.             int i= s->parser->split(avctx, buf, buf_size);
179.             buf += i;
                 ^
180.             buf_size -= i;
181.         }

libavcodec/parser.c:180:13: 
178.             int i= s->parser->split(avctx, buf, buf_size);
179.             buf += i;
180.             buf_size -= i;
                 ^
181.         }
182.     }

libavcodec/parser.c:185:5: 
183. 
184.     /* cast to avoid warning about discarding qualifiers */
185.     *poutbuf= (uint8_t *) buf;
         ^
186.     *poutbuf_size= buf_size;
187.     if(avctx->extradata){

libavcodec/parser.c:186:5: 
184.     /* cast to avoid warning about discarding qualifiers */
185.     *poutbuf= (uint8_t *) buf;
186.     *poutbuf_size= buf_size;
         ^
187.     if(avctx->extradata){
188.         if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))

libavcodec/parser.c:187:8: Taking true branch
185.     *poutbuf= (uint8_t *) buf;
186.     *poutbuf_size= buf_size;
187.     if(avctx->extradata){
            ^
188.         if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))
189.             /*||(s->pict_type != AV_PICTURE_TYPE_I && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_NOKEY))*/

libavcodec/parser.c:188:15: Taking true branch
186.     *poutbuf_size= buf_size;
187.     if(avctx->extradata){
188.         if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))
                   ^
189.             /*||(s->pict_type != AV_PICTURE_TYPE_I && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_NOKEY))*/
190.             /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){

libavcodec/parser.c:188:28: Taking true branch
186.     *poutbuf_size= buf_size;
187.     if(avctx->extradata){
188.         if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))
                                ^
189.             /*||(s->pict_type != AV_PICTURE_TYPE_I && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_NOKEY))*/
190.             /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){

libavcodec/parser.c:191:13: 
189.             /*||(s->pict_type != AV_PICTURE_TYPE_I && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_NOKEY))*/
190.             /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
191.             int size= buf_size + avctx->extradata_size;
                 ^
192.             *poutbuf_size= size;
193.             *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);

libavcodec/parser.c:192:13: 
190.             /*||(? && (s->flags & PARSER_FLAG_DUMP_EXTRADATA_AT_BEGIN)*/){
191.             int size= buf_size + avctx->extradata_size;
192.             *poutbuf_size= size;
                 ^
193.             *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
194. 

libavcodec/parser.c:193:13: 
191.             int size= buf_size + avctx->extradata_size;
192.             *poutbuf_size= size;
193.             *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
                 ^
194. 
195.             memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);

libavutil/mem.c:62:1: start of procedure av_malloc()
  60.  * linker will do it automatically. */
  61. 
  62. void *av_malloc(size_t size)
      ^
  63. {
  64.     void *ptr = NULL;

libavutil/mem.c:64:5: 
  62. void *av_malloc(size_t size)
  63. {
  64.     void *ptr = NULL;
          ^
  65. #if CONFIG_MEMALIGN_HACK
  66.     long diff;

libavutil/mem.c:70:9: Taking true branch
  68. 
  69.     /* let's disallow possibly ambiguous cases */
  70.     if (size > (INT_MAX - 32) || !size)
              ^
  71.         return NULL;
  72. 

libavutil/mem.c:71:9: 
  69.     /* let's disallow possibly ambiguous cases */
  70.     if (size > (INT_MAX - 32) || !size)
  71.         return NULL;
              ^
  72. 
  73. #if CONFIG_MEMALIGN_HACK

libavutil/mem.c:115:1: return from a call to av_malloc
  113. #endif
  114.     return ptr;
  115. }
       ^
  116. 
  117. void *av_realloc(void *ptr, size_t size)

libavcodec/parser.c:195:13: 
193.             *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
194. 
195.             memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
                 ^
196.             memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
197.             return 1;

int av_parser_change(AVCodecParserContext *s,
                     AVCodecContext *avctx,
                     uint8_t **poutbuf, int *poutbuf_size,
                     const uint8_t *buf, int buf_size, int keyframe){
    if(s && s->parser->split){
        if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){
            int i= s->parser->split(avctx, buf, buf_size);
            buf += i;
            buf_size -= i;
        }
    }
    *poutbuf= (uint8_t *) buf;
    *poutbuf_size= buf_size;
    if(avctx->extradata){
        if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))
             ){
            int size= buf_size + avctx->extradata_size;
            *poutbuf_size= size;
            *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
            memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);
            memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
            return 1;
        }
    }
    return 0;
}
['int av_parser_change(AVCodecParserContext *s,\n                     AVCodecContext *avctx,\n                     uint8_t **poutbuf, int *poutbuf_size,\n                     const uint8_t *buf, int buf_size, int keyframe){\n    if(s && s->parser->split){\n        if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){\n            int i= s->parser->split(avctx, buf, buf_size);\n            buf += i;\n            buf_size -= i;\n        }\n    }\n    *poutbuf= (uint8_t *) buf;\n    *poutbuf_size= buf_size;\n    if(avctx->extradata){\n        if(  (keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))\n             ){\n            int size= buf_size + avctx->extradata_size;\n            *poutbuf_size= size;\n            *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);\n            memcpy(*poutbuf, avctx->extradata, avctx->extradata_size);\n            memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE);\n            return 1;\n        }\n    }\n    return 0;\n}', 'void *av_malloc(size_t size)\n{\n    void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n    long diff;\n#endif\n    if (size > (INT_MAX - 32) || !size)\n        return NULL;\n#if CONFIG_MEMALIGN_HACK\n    ptr = malloc(size + 32);\n    if (!ptr)\n        return ptr;\n    diff              = ((-(long)ptr - 1) & 31) + 1;\n    ptr               = (char *)ptr + diff;\n    ((char *)ptr)[-1] = diff;\n#elif HAVE_POSIX_MEMALIGN\n    if (posix_memalign(&ptr, 32, size))\n        ptr = NULL;\n#elif HAVE_ALIGNED_MALLOC\n    ptr = _aligned_malloc(size, 32);\n#elif HAVE_MEMALIGN\n    ptr = memalign(32, size);\n#else\n    ptr = malloc(size);\n#endif\n    return ptr;\n}']