On Wednesday, June 29, 2011, Amir Rouhi-Rmit <[email protected]> wrote: > For generating raw images from every second of an input video,when i use the > below command: > > ffmpeg -i c:\test\animals.wmv -r 1 -f image2 -vcodec rawvideo -pix_fmt > yuvj420p c:\test\Img-%03d.yuv > > for every second of the video the ffmpeg generate two types of files: > Img---.yuU and Img---.yuv > And when i open the yuv file(with Irfanview), the 1/4th of the top part of > the image has been chopped and filled with smooth green colour. The rest > colour theme of the whole picture is also in green scale. (I use Irfanview > /open raw and enter height and width and 24 BPP and yuv 420.
The green yuv files are most probably jpeg files in disguise. Make sure these are not leftovers from another attempt to run ffmpeg. > but without -vcodec rawvideo ffmpeg generate only Img---.yuv files. But this > file can not be opened as raw files and actually are jpg with yuv extension.( > As you told it is because the default of image2 which is jpg) > BTW how can i see the different switches of -vcodec? (ffmpeg -vcodec list > does not show any list) ffmpeg -codecs Alex > > -- > Amir H. Rouhi > PhD Student/ CSIT RMIT University > Room: 14-09-04 > [email protected] > [email protected] > > _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
