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hello, same problem when reading video. No matter build from your setup repo or from https://hub.docker.com/r/congee524/mmaction2

@innerlee it is a very normal video, like demo.mp4 in mmaction2/demo/demo.mp4 I reproduce the problem in the docker image provided by https://hub.docker.com/r/congee524/mmaction2. It is very strange like the pic below...

@protossw512 hi, what do you mean by recompiling and installing opencv ? I tried with zzopencv.sh but still have the issue, can you tell me in more detail, thx!

@innerlee this is the full compilation log of denseflow 

Problem solved. Recompiling and installing opencv with ffmpeg supported, the original setup shell may install opencv without ffmpeg because there are some dependencies uninstalled ,thx :)

hello @innerlee , one more question: when I use the denseflow to extract rgb and flow frames, the rgb number is one more than x_flow and y_flow frames. It is...

Thanks for your quick reply and this is the same as I understand ! What I am not understand is why the original repo get the numbers equal :( Besides,...

@rlleshi hello, -DWITH_FFMPEG=ON is an input option. please check your install log if the ffmpeg support is really on like this :  In my previous installation, it always show...

bash download_model.sh 可解决

Hello mate, have you solve the problem?