how to solve that out of memory

1 次查看（过去 30 天）
Pan
Pan 2012-3-3
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.
  1 个评论
Jan
Jan 2012-3-4
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.

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采纳的回答

Jan
Jan 2012-3-4
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.

更多回答（1 个）

Walter Roberson
Walter Roberson 2012-3-3
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;
  1 个评论
Walter Roberson
Walter Roberson 2012-3-4
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

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