MATLAB: Using uigetfile to read the name of the file

image processing

hello i have an avi file .. i need to read the file name of it by using any function

in simple i have the following codes . i need to plot the audio of the avi file … i dont want to hard code the line 1 of the program … is there any way to just read the file name with uiget file option

filename = 'match.avi';

hfmr = signalblks.MultimediaFileReader(filename, 'AudioOutputPort',true,'VideoOutputPort',false);

while ~isDone(hfmr)

audio = step(hfmr);

end

audio;

Best Answer

Yes. There is. Try uigetfile(). Be sure to use both return arguments and combine them with fullfile().

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MATLAB: Avi audio plot

I'm going to assume that you mean the Signal Processing Blockset, since the DSP System Toolbox did not exist in R2010a.

In R2010a with SP blockset, you can use the System object signalblks.MultimediaFileReader.

For example:

filename = 'youravifile.avi';
hmfr = signalblks.MultimediaFileReader(filename,...
    'AudioOutputPort',true,'VideoOutputPort',false);
while ~isDone(hfmr)
audio = step(hfmr);
end

Every time step is called audio contains one frame of the audio. In the above, the next frame is overwriting the previous one, but you can save the audio frames or directly write them to a file with signalblks.MultiMediaFileWriter

Best Answer

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