When i use the below command ffmpeg -i input.wmv -r 1 -s WxH -f image2 Img-%03d.Y i will get three different output file for each image which the extensions are Img-xxx.u and Img-xxx.v and Img-xxx.y it seems that the command separate the picture of each frame to 3 plane y,u and v. But i cant view them to see the result. are they correct or not? Can you recommend a software for viewing this images with extensions *.y *.u and *.v?
But when i use the command: ffmpeg -i input.wmv -r 1 -s WxH -f image2 -pic_fmt gray Img-%03d.Y the result contains like previous command , for each image three planes with *.y ,*.u and *.v which the size of *.u and *.v is 0. how can i see the image of *.y resulted in this command and compare it with previous one? size in both are same and hex editor shows same content but i need to see the images. how to view them? Tnx On Fri, Jun 17, 2011 at 8:37 PM, Stefano Sabatini < [email protected]> wrote: > On date Thursday 2011-06-16 16:02:43 +1000, Amir Rouhi-Rmit encoded: > > I know that i can extract images of a video by ffmpeg as can be seen in > > below command: > > ffmpeg -i input.avi -r 1 -s WxH -f image2 Img-%03d.jpeg > > But what i want is a separated Y plane and cb and cr plane. can i i > achieve > > this by ffmpeg? if yes pleas let me now how and if no do you suggest any > > idea? > > You may use the .Y raw image format: > ffmpeg -i input.avi -r 1 -s WxH -f image2 Img-%03d.Y > > to get separate .Y, .U, .V raw images. A possibly better solution > would be to use the lut filter, soon to be committed, and I suppose > you can achieve the same purpose using some of the MPlayer filters > wrapped by mp. > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user > -- Amir H. Rouhi PhD Student/ CSIT RMIT University Room: 14-09-04 [email protected] [email protected]
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