Cannot read a another video (HELP)

""

obj=VideoReader('222.wmv');

a=read(obj);

frames=get(obj,'numberOfFrames');

   for k = 1 : frames

       I(k).cdata = a(:,:,:,k);

       I(k).colormap = [];

   end
implay(I);

""

i have a video with name '111.wmv' this 1 i can read it but when i want to read another video name'222.wmv' it give a an error

"

Dot name reference on non-scalar structure.

Error in VideoReader/read (line 91)

if( ~isempty(obj.NumberOfFrames) )

Error in new (line 3)

a=read(obj);

" what does it mean & how do i solved it????

Answer 1

[Walter Roberson]

It means the VideoReader() call failed, such as might occur if 222.wmv was not found.

[Exton]

but i place the video in the same path Yet i dont why it call fail???

any solution on that>>??

[Walter Roberson]

After you make the call

obj=VideoReader('222.wmv');

what does

class(obj)

report ?

[Exton]

% Update the frameIndex only if the total number of frames in the video can % be determined after the read operation

if( ~isempty(obj.NumberOfFrames) )

    frameIndex(frameIndex == Inf) = obj.NumberOfFrames;

end

is this what you call class(obj)report??

[Walter Roberson]

class() is a MATLAB function. Insert the following line into the code right after your obj=VideoReader('222.wmv'); line:

class(obj)

And tell us what the output is from that line.

[Exton]

ops...sorry get it now,and i get the report is the same

""

ans =

VideoReader

Dot name reference on non-scalar structure.

Error in VideoReader/read (line 91)

if( ~isempty(obj.NumberOfFrames) )

""

[Walter Roberson]

Wait, this sounds familiar now. There is a bug, I think it is in R2012b only, that affects structure access.

Edit line 91 to change

if( ~isempty(obj.NumberOfFrames) )

to

if( ~isempty(obj(1).NumberOfFrames) )

and likewise on other lines that encounter the same problem.

[Exton]

Nice man got it... THANKYOU ^_^