modules/video_processing: refactor interface->include + more.

webrtc/modules/video_processing/test/readYUV420file.m

 function [Y,U,V] = readYUV420file(filename, width, height)
 % [Y,U,V] = readYUVfile(filename, width, height)
 
 fid = fopen(filename,'rb');
 if fid==-1
     error(['Cannot open file ' filename]);
 end
 
 % Number of pixels per image
 nPx=width*height;
 
 % nPx bytes luminance, nPx/4 bytes U, nPx/4 bytes V
-frameSizeBytes = nPx*1.5; 
+frameSizeBytes = nPx*1.5;
 
 % calculate number of frames
 fseek(fid,0,'eof'); % move to end of file
 fileLen=ftell(fid); % number of bytes
 fseek(fid,0,'bof'); % rewind to start
 
 % calculate number of frames
 numFrames = floor(fileLen/frameSizeBytes);
 
 Y=uint8(zeros(height,width,numFrames));
 U=uint8(zeros(height/2,width/2,numFrames));
 V=uint8(zeros(height/2,width/2,numFrames));
 
 [X,nBytes]=fread(fid, frameSizeBytes, 'uchar');
 
 for k=1:numFrames
-    
+
     % Store luminance
     Y(:,:,k)=uint8(reshape(X(1:nPx), width, height).');
-    
+
     % Store U channel
     U(:,:,k)=uint8(reshape(X(nPx + (1:nPx/4)), width/2, height/2).');
 
     % Store V channel
     V(:,:,k)=uint8(reshape(X(nPx + nPx/4 + (1:nPx/4)), width/2, height/2).');
-    
+
     % Read next frame
     [X,nBytes]=fread(fid, frameSizeBytes, 'uchar');
 end
 
-    
+
 fclose(fid);