libavcodec/roqvideoenc.c:80: error: Buffer Overrun L3
  Offset added: 4 Size: [0, +oo].

libavcodec/roqvideoenc.c:78:1: <Length trace>
76. 
77. /* Macroblock support functions */
78. static void unpack_roq_cell(roq_cell *cell, uint8_t u[4*3])
    ^
79. {
80.     memcpy(u  , cell->y, 4);

libavcodec/roqvideoenc.c:78:1: Parameter `cell->y[*]`
76. 
77. /* Macroblock support functions */
78. static void unpack_roq_cell(roq_cell *cell, uint8_t u[4*3])
    ^
79. {
80.     memcpy(u  , cell->y, 4);

libavcodec/roqvideoenc.c:80:5: Array access: Offset added: 4 Size: [0, +oo]
78. static void unpack_roq_cell(roq_cell *cell, uint8_t u[4*3])
79. {
80.     memcpy(u  , cell->y, 4);
        ^
81.     memset(u+4, cell->u, 4);
82.     memset(u+8, cell->v, 4);
