how to solve that out of memory

Hi,

this is my code,

function f1()
clear all;

obj1 = mmreader('can.avi');
obj2 = mmreader('watch.avi');
obj3 = mmreader('can.avi');
obj4 = mmreader('watch.avi');

vid1 = read(obj1);
vid2 = read(obj2);
vid3 = read(obj3);
vid4 = read(obj4);
frame1 = 1;
frame2 = 50;
frame3 = 30;
frame4 = 1;
f4 = 1;
hst1=0;
hst2=0;
hst3=0;
hst4=0;

h = figure('Name','Video ', 'NumberTitle','off','Color',[1,1,1],'Toolbar','none','Visible','on', 'Position',[80 40 1000 700],...
     'Resize','on');

hstat1 = uicontrol('unit','pixel','style','checkbox','value',0,'position',...
[50 630 25 25]);
hstat2 = uicontrol('unit','pixel','style','checkbox','value',0,'position',...
[50 550  25 25]);
hstat3 = uicontrol('unit','pixel','style','checkbox','value',0,'position',...
[50 480  25 25]);
hstat4 = uicontrol('unit','pixel','style','checkbox','value',0,'position',...
[50 410  25 25]);

hplay1 = uicontrol('unit','pixel','style','pushbutton','string','藥罐_PLAY',...
'position',[50 630 70 40],'backgroundColor',[0.3,0.7,1],'callback',{@play1_callback});
hplay2 = uicontrol('unit','pixel','style','pushbutton','string','手錶_PLAY',...
'position',[50 550 70 40],'backgroundColor',[0.3,0.7,1],'callback',{@play2_callback});
hplay3 = uicontrol('unit','pixel','style','pushbutton','string','書本_PLAY',...
'position',[50 480 70 40],'backgroundColor',[0.3,0.7,1],'callback',{@play3_callback});
hplay4 = uicontrol('unit','pixel','style','pushbutton','string','手機_PLAY',...
'position',[50 410 70 40],'backgroundColor',[0.3,0.7,1],'callback',{@play4_callback});

hstop1 = uicontrol('unit','pixel','style','pushbutton','string','藥罐_STOP',...
'position',[50 330 70 40],'backgroundColor',[0.2,1,0],'callback',@stop1_callback);
hstop2 = uicontrol('unit','pixel','style','pushbutton','string','手錶_STOP',...
'position',[50 250 70 40],'backgroundColor',[0.2,1,0],'callback',@stop2_callback);
hstop3 = uicontrol('unit','pixel','style','pushbutton','string','書本_STOP',...
'position',[50 170 70 40],'backgroundColor',[0.2,1,0],'callback',@stop3_callback);
hstop4 = uicontrol('unit','pixel','style','pushbutton','string','手機_STOP',...
'position',[50 90 70 40],'backgroundColor',[0.2,1,0],'callback',@stop4_callback);

hexit = uicontrol('unit','pixel','style','pushbutton','string','EXIT',...
'position',[50 10 70 40],'backgroundColor',[1,0,0],'callback',@exit_callback);

while (1)

      if hst1==1 
          subplot(2,2,1); imshow(vid1(:,:,:,frame1));
          if frame1 < size(vid1,4) 
              frame1 = frame1+1;
          else
              frame1 = 1;
          end

      end

      if hst2==1
          subplot(2,2,2); imshow(vid2(:,:,:,frame2));
          if frame2 < size(vid2,4) 
              frame2 = frame2+1;
          else
              frame2 = 1;
          end
      end

      if hst3==1 
          subplot(2,2,3); imshow(vid3(:,:,:,frame3));
          if frame3 < size(vid3,4) 
              frame3 = frame3+1;
          else
              frame3 = 1;
          end
      end

      if hst4==1 
          subplot(2,2,4); imshow(vid4(:,:,:,frame4));
          if frame4 < size(vid4,4) 
              frame4 = frame4+1;
          else
              frame4 = 1;
          end
      % else 
      % subplot(2,2,4); imshow(vid2(:,:,:,1));
      end
      drawnow; 
      if f4 ==10000
      break;
      % else f4 = f4+1;
      end
  end

function play1_callback(hObject0,eventdata0)
set(hstat1,'value',1);
hst1=1;
set(hplay1 ,'backgroundColor',[1,1,0],'string','藥罐_播放中');

end

function play2_callback(hObject1,eventdata1)
set(hstat2,'value',1); 
hst2=1;
set(hplay2 ,'backgroundColor',[1,1,0],'string','手錶_播放中');
end

function play3_callback(hObject2,eventdata2)
set(hstat3,'value',1); 
hst3=1;
set(hplay3 ,'backgroundColor',[1,1,0],'string','書本_播放中');
end

function play4_callback(hObject3,eventdata)
set(hstat4,'value',1); 
hst4=1;
set(hplay4 ,'backgroundColor',[1,1,0],'string','手機_播放中');
end

function stop1_callback(hObject,eventdata)
set(hstat1,'value',0);
hst1=0;
set(hplay1 ,'backgroundColor',[0.3,0.7,1],'string','藥罐_PLAY');
end

function stop2_callback(hObject,eventdata)
set(hstat2,'value',0);
hst2=0;
set(hplay2 ,'backgroundColor',[0.3,0.7,1],'string','手錶_PLAY');
end

function stop3_callback(hObject,eventdata)
set(hstat3,'value',0);
hst3=0;
set(hplay3 ,'backgroundColor',[0.3,0.7,1],'string','書本_PLAY');
end

function stop4_callback(hObject,eventdata)
set(hstat4,'value',0);
hst4=0;
set(hplay4 ,'backgroundColor',[0.3,0.7,1],'string','手機_PLAY');
end

function exit_callback(hObject,eventdata)
f4=10000;
stop1_callback;
close gcf;
end
end

but I run it, matlab show this message

??? Not enough memory available for 537 frames.

Error in ==> mmreader.read at 67
        videoFrames = read(getImpl(obj));

Error in ==> GUIf1 at 11
vid3 = read(obj3);

I don't know that I should how to do.

My computer is 32 bits and RAM is 4.0G.

Pleas give me some advice. Thank you.

[Jan]

It wastes a lot of time, if you remove all functions from the memory using "clear all", such that reading them again from the disk and parsing them is required.

There might be some arguments for "clear variables" inside a script (although I do not knwo any), but inside a function even this less brute form of "clear" is meaningless.

Answer 1

[Jan]

If you use a 64 bit system and Matlab version, you can use more than the 3GB RAM, which are available under Matlab/32 only.

Answer 2

[Walter Roberson]

You really only have two different videos. Do not read each video twice. Instead re-use the data that has already been read.

obj1 = mmreader('can.avi');
obj2 = mmreader('watch.avi');

vid1 = read(obj1);
vid2 = read(obj2);
vid3 = vid1;
vid4 = vid2;

[Walter Roberson]

If the above was just for testing and eventually you will have four different videos, then see my response to

http://www.mathworks.com/matlabcentral/answers/30739-error-out-of-memory