package main

import (
    "fmt"
    "os"
    "github.com/alfg/mp4"
)

func main() {
    file, err := os.Open("test/tears-of-steel.mp4")
    if err != nil {
        panic(err)
    }
    defer file.Close()

    info, err := file.Stat()
    if err != nil {
        panic(err)
    }
    size := info.Size()

    mp4, _ := mp4.OpenFromReader(file, size)
    file.Close()
    fmt.Println(file.Ftyp.Name)
    fmt.Println(file.Ftyp.MajorBrand)
}