libavfilter/avfilter.c:492: error: Buffer Overrun L1
  Offset added: 1024 Size: 64 by call to `av_image_copy`.

libavfilter/avfilter.c:459:1: Parameter `frame->data[*]`
457. }
458. 
459. int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
     ^
460. {
461.     int (*filter_frame)(AVFilterLink *, AVFrame *);

libavfilter/avfilter.c:492:13: Call
490.         switch (link->type) {
491.         case AVMEDIA_TYPE_VIDEO:
492.             av_image_copy(out->data, out->linesize, frame->data, frame->linesize,
                 ^
493.                           frame->format, frame->width, frame->height);
494.             break;

libavutil/imgutils.c:244:1: <Length trace>
242. }
243. 
244. void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
     ^
245.                    const uint8_t *src_data[4], const int src_linesizes[4],
246.                    enum AVPixelFormat pix_fmt, int width, int height)

libavutil/imgutils.c:244:1: Parameter `**src_data`
  242. }
  243. 
  244. void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
       ^
  245.                    const uint8_t *src_data[4], const int src_linesizes[4],
  246.                    enum AVPixelFormat pix_fmt, int width, int height)

libavutil/imgutils.c:259:9: Array access: Offset added: 1024 Size: 64 by call to `av_image_copy` 
  257.                             width, height);
  258.         /* copy the palette */
  259.         memcpy(dst_data[1], src_data[1], 4*256);
               ^
  260.     } else {
  261.         int i, planes_nb = 0;
