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ding,can anybody answer?

i am doing something like this 1.transcode and save as a file 2. play it while 3.sometimes i can have a snapshot the command line i write is this : ":sout=#transcode{vcodec=wmv2,vb=4096,scale=1,acodec=mpga,ab=128,channels=2,samplerate=44100}:duplicate{dst=display,dst=std{access=file,mux=ts,dst=...

i am doing something an this: two people talk with each other through voice(audio),no video display ,but they also want to have a snapshot sometimes,i am using vlcj now ,to open the audio device ,i use mediaplayer.playmedia("dshow://"),but when i use above like this mediaplayer.playmedia(&...

I now have the same question i am using vlcj and i want do something like this: capture the audio and no video ,but sometimes i want to have a snapshot ,so what shou i do with the parameters?help me