if (av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0) {
return -1;
}
+ if((avctx->width&3) || (avctx->height&3)){
+ av_log(avctx, AV_LOG_ERROR, "width and height must be multiplies of 4\n");
+ return -1;
+ }
avcodec_get_frame_defaults(&c->pic);
avctx->coded_frame = (AVFrame*)&c->pic;