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                            [TOC]

# 視頻轉JPEG

~~~
ffmpeg -i test.flv -r 1 -f image2 image-%3d.jpeg
~~~

* `-r` : 圖片轉出的幀率,每秒鐘轉出1張圖片
* `-f` : 將輸入文件轉成什么格式
`%3d`是動態的,3個數字組成的

# 視頻轉gif

~~~
ffmpeg -i out.mp4 -ss 00:00:00 -t 10 out.gif
~~~

# 圖片轉視頻

這個會一下把所有幀全部輸出
~~~
ffmpeg  -f image2 -i image-%3d.jpeg images.mp4
~~~

* `-i` : 表示輸入,后面是圖片



                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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