Passing arguments to system()

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Andrés Liu
Andrés Liu 2015-3-7
评论： Image Analyst 2015-3-7
I'm using system() to run ffmpeg, my problem is that I can't get to pass the arguments from outside this function. This is the code:
function videoFunction(videoFile)
vid = VideoReader(videoFile);
system('ffmpeg -i vid -vn audio.mp3');
disp('Audio extraído')
end
If I put the path to the video in -i video.avi instead of -i vid it would work but I need to pass it like I mentioned. Any ideas?

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回答（1 个）

Image Analyst
Image Analyst 2015-3-7
If your video file name is in variable videoFile, how about
strCommandLine = sprintf('ffmpeg -i %s -vn audio.mp3', videoFile);
system(strCommandLine);
  2 个评论
Andrés Liu
Andrés Liu 2015-3-7
Yes! This worked, thank you!
Image Analyst
Image Analyst 2015-3-7
Can you officially "Accept" it then? Thanks in advance.

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