libavformat/rtpdec_mpeg4.c:187: error: Null Dereference
  pointer `pkt->data` last assigned on line 186 could be null and is dereferenced by call to `memcpy()` at line 187, column 5.

libavformat/rtpdec_mpeg4.c:171:1: start of procedure aac_parse_packet()
169. 
170. /* Follows RFC 3640 */
171. static int aac_parse_packet(AVFormatContext *ctx,
     ^
172.                             PayloadContext *data,
173.                             AVStream *st,

libavformat/rtpdec_mpeg4.c:178:9: Taking false branch
176.                             const uint8_t *buf, int len, int flags)
177. {
178.     if (rtp_parse_mp4_au(data, buf))
             ^
179.         return -1;
180. 

libavformat/rtpdec_mpeg4.c:181:5: 
179.         return -1;
180. 
181.     buf += data->au_headers_length_bytes + 2;
         ^
182.     len -= data->au_headers_length_bytes + 2;
183. 

libavformat/rtpdec_mpeg4.c:182:5: 
180. 
181.     buf += data->au_headers_length_bytes + 2;
182.     len -= data->au_headers_length_bytes + 2;
         ^
183. 
184.     /* XXX: Fixme we only handle the case where rtp_parse_mp4_au define

libavformat/rtpdec_mpeg4.c:186:5: 
184.     /* XXX: Fixme we only handle the case where rtp_parse_mp4_au define
185.                     one au_header */
186.     av_new_packet(pkt, data->au_headers[0].size);
         ^
187.     memcpy(pkt->data, buf, data->au_headers[0].size);
188. 

libavcodec/avpacket.c:60:1: start of procedure av_new_packet()
  58. }
  59. 
  60. int av_new_packet(AVPacket *pkt, int size)
      ^
  61. {
  62.     uint8_t *data= NULL;

libavcodec/avpacket.c:62:5: 
  60. int av_new_packet(AVPacket *pkt, int size)
  61. {
  62.     uint8_t *data= NULL;
          ^
  63.     if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
  64.         data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);

libavcodec/avpacket.c:63:8: Taking true branch
  61. {
  62.     uint8_t *data= NULL;
  63.     if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
             ^
  64.         data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
  65.     if (data){

libavcodec/avpacket.c:64:9: 
  62.     uint8_t *data= NULL;
  63.     if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
  64.         data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
              ^
  65.     if (data){
  66.         memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);

libavutil/mem.c:64:1: start of procedure av_malloc()
    62.    linker will do it automatically. */
    63. 
    64. void *av_malloc(FF_INTERNAL_MEM_TYPE size)
        ^
    65. {
    66.     void *ptr = NULL;

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

libavutil/mem.c:72:8: Taking true branch
    70. 
    71.     /* let's disallow possible ambiguous cases */
    72.     if(size > (INT_MAX-16) )
               ^
    73.         return NULL;
    74. 

libavutil/mem.c:73:9: 
    71.     /* let's disallow possible ambiguous cases */
    72.     if(size > (INT_MAX-16) )
    73.         return NULL;
                ^
    74. 
    75. #if CONFIG_MEMALIGN_HACK

libavutil/mem.c:117:1: return from a call to av_malloc
    115. #endif
    116.     return ptr;
    117. }
         ^
    118. 
    119. void *av_realloc(void *ptr, FF_INTERNAL_MEM_TYPE size)

libavcodec/avpacket.c:65:9: Taking false branch
  63.     if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)
  64.         data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);
  65.     if (data){
              ^
  66.         memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
  67.     }else

libavcodec/avpacket.c:68:9: 
  66.         memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
  67.     }else
  68.         size=0;
              ^
  69. 
  70.     av_init_packet(pkt);

libavcodec/avpacket.c:70:5: 
  68.         size=0;
  69. 
  70.     av_init_packet(pkt);
          ^
  71.     pkt->data = data;
  72.     pkt->size = size;

libavcodec/avpacket.c:46:1: start of procedure av_init_packet()
    44. }
    45. 
    46. void av_init_packet(AVPacket *pkt)
        ^
    47. {
    48.     pkt->pts   = AV_NOPTS_VALUE;

libavcodec/avpacket.c:48:5: 
    46. void av_init_packet(AVPacket *pkt)
    47. {
    48.     pkt->pts   = AV_NOPTS_VALUE;
            ^
    49.     pkt->dts   = AV_NOPTS_VALUE;
    50.     pkt->pos   = -1;

libavcodec/avpacket.c:49:5: 
    47. {
    48.     pkt->pts   = AV_NOPTS_VALUE;
    49.     pkt->dts   = AV_NOPTS_VALUE;
            ^
    50.     pkt->pos   = -1;
    51.     pkt->duration = 0;

libavcodec/avpacket.c:50:5: 
    48.     pkt->pts   = AV_NOPTS_VALUE;
    49.     pkt->dts   = AV_NOPTS_VALUE;
    50.     pkt->pos   = -1;
            ^
    51.     pkt->duration = 0;
    52.     pkt->convergence_duration = 0;

libavcodec/avpacket.c:51:5: 
    49.     pkt->dts   = AV_NOPTS_VALUE;
    50.     pkt->pos   = -1;
    51.     pkt->duration = 0;
            ^
    52.     pkt->convergence_duration = 0;
    53.     pkt->flags = 0;

libavcodec/avpacket.c:52:5: 
    50.     pkt->pos   = -1;
    51.     pkt->duration = 0;
    52.     pkt->convergence_duration = 0;
            ^
    53.     pkt->flags = 0;
    54.     pkt->stream_index = 0;

libavcodec/avpacket.c:53:5: 
    51.     pkt->duration = 0;
    52.     pkt->convergence_duration = 0;
    53.     pkt->flags = 0;
            ^
    54.     pkt->stream_index = 0;
    55.     pkt->destruct= NULL;

libavcodec/avpacket.c:54:5: 
    52.     pkt->convergence_duration = 0;
    53.     pkt->flags = 0;
    54.     pkt->stream_index = 0;
            ^
    55.     pkt->destruct= NULL;
    56.     pkt->side_data       = NULL;

libavcodec/avpacket.c:55:5: 
    53.     pkt->flags = 0;
    54.     pkt->stream_index = 0;
    55.     pkt->destruct= NULL;
            ^
    56.     pkt->side_data       = NULL;
    57.     pkt->side_data_elems = 0;

libavcodec/avpacket.c:56:5: 
    54.     pkt->stream_index = 0;
    55.     pkt->destruct= NULL;
    56.     pkt->side_data       = NULL;
            ^
    57.     pkt->side_data_elems = 0;
    58. }

libavcodec/avpacket.c:57:5: 
    55.     pkt->destruct= NULL;
    56.     pkt->side_data       = NULL;
    57.     pkt->side_data_elems = 0;
            ^
    58. }
    59. 

libavcodec/avpacket.c:58:1: return from a call to av_init_packet
    56.     pkt->side_data       = NULL;
    57.     pkt->side_data_elems = 0;
    58. }
        ^
    59. 
    60. int av_new_packet(AVPacket *pkt, int size)

libavcodec/avpacket.c:71:5: 
  69. 
  70.     av_init_packet(pkt);
  71.     pkt->data = data;
          ^
  72.     pkt->size = size;
  73.     pkt->destruct = av_destruct_packet;

libavcodec/avpacket.c:72:5: 
  70.     av_init_packet(pkt);
  71.     pkt->data = data;
  72.     pkt->size = size;
          ^
  73.     pkt->destruct = av_destruct_packet;
  74.     if(!data)

libavcodec/avpacket.c:73:5: 
  71.     pkt->data = data;
  72.     pkt->size = size;
  73.     pkt->destruct = av_destruct_packet;
          ^
  74.     if(!data)
  75.         return AVERROR(ENOMEM);

libavcodec/avpacket.c:74:9: Taking true branch
  72.     pkt->size = size;
  73.     pkt->destruct = av_destruct_packet;
  74.     if(!data)
              ^
  75.         return AVERROR(ENOMEM);
  76.     return 0;

libavcodec/avpacket.c:75:9: 
  73.     pkt->destruct = av_destruct_packet;
  74.     if(!data)
  75.         return AVERROR(ENOMEM);
              ^
  76.     return 0;
  77. }

libavcodec/avpacket.c:77:1: return from a call to av_new_packet
  75.         return AVERROR(ENOMEM);
  76.     return 0;
  77. }
      ^
  78. 
  79. void av_shrink_packet(AVPacket *pkt, int size)

libavformat/rtpdec_mpeg4.c:187:5: 
185.                     one au_header */
186.     av_new_packet(pkt, data->au_headers[0].size);
187.     memcpy(pkt->data, buf, data->au_headers[0].size);
         ^
188. 
189.     pkt->stream_index = st->index;

static int aac_parse_packet(AVFormatContext *ctx,
                            PayloadContext *data,
                            AVStream *st,
                            AVPacket *pkt,
                            uint32_t *timestamp,
                            const uint8_t *buf, int len, int flags)
{
    if (rtp_parse_mp4_au(data, buf))
        return -1;
    buf += data->au_headers_length_bytes + 2;
    len -= data->au_headers_length_bytes + 2;
    av_new_packet(pkt, data->au_headers[0].size);
    memcpy(pkt->data, buf, data->au_headers[0].size);
    pkt->stream_index = st->index;
    return 0;
}
['static int aac_parse_packet(AVFormatContext *ctx,\n                            PayloadContext *data,\n                            AVStream *st,\n                            AVPacket *pkt,\n                            uint32_t *timestamp,\n                            const uint8_t *buf, int len, int flags)\n{\n    if (rtp_parse_mp4_au(data, buf))\n        return -1;\n    buf += data->au_headers_length_bytes + 2;\n    len -= data->au_headers_length_bytes + 2;\n    av_new_packet(pkt, data->au_headers[0].size);\n    memcpy(pkt->data, buf, data->au_headers[0].size);\n    pkt->stream_index = st->index;\n    return 0;\n}', 'int av_new_packet(AVPacket *pkt, int size)\n{\n    uint8_t *data= NULL;\n    if((unsigned)size < (unsigned)size + FF_INPUT_BUFFER_PADDING_SIZE)\n        data = av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE);\n    if (data){\n        memset(data + size, 0, FF_INPUT_BUFFER_PADDING_SIZE);\n    }else\n        size=0;\n    av_init_packet(pkt);\n    pkt->data = data;\n    pkt->size = size;\n    pkt->destruct = av_destruct_packet;\n    if(!data)\n        return AVERROR(ENOMEM);\n    return 0;\n}', 'void *av_malloc(FF_INTERNAL_MEM_TYPE size)\n{\n    void *ptr = NULL;\n#if CONFIG_MEMALIGN_HACK\n    long diff;\n#endif\n    if(size > (INT_MAX-16) )\n        return NULL;\n#if CONFIG_MEMALIGN_HACK\n    ptr = malloc(size+16);\n    if(!ptr)\n        return ptr;\n    diff= ((-(long)ptr - 1)&15) + 1;\n    ptr = (char*)ptr + diff;\n    ((char*)ptr)[-1]= diff;\n#elif HAVE_POSIX_MEMALIGN\n    if (posix_memalign(&ptr,16,size))\n        ptr = NULL;\n#elif HAVE_MEMALIGN\n    ptr = memalign(16,size);\n#else\n    ptr = malloc(size);\n#endif\n    return ptr;\n}', 'void av_init_packet(AVPacket *pkt)\n{\n    pkt->pts   = AV_NOPTS_VALUE;\n    pkt->dts   = AV_NOPTS_VALUE;\n    pkt->pos   = -1;\n    pkt->duration = 0;\n    pkt->convergence_duration = 0;\n    pkt->flags = 0;\n    pkt->stream_index = 0;\n    pkt->destruct= NULL;\n    pkt->side_data       = NULL;\n    pkt->side_data_elems = 0;\n}']