This library contains helper functions to read image frames into matlab from Video

file using DirectShow. This library has borrowed codes from Ashwin Thangali s

"DirectShow (DirectX) based AVI file reader", and it can read multiple video formats besides avi.



Features:

a) can read frames from rmvb, avi, etc.

b) handles most codecs installed on the system

d) its implementation is only based on the IMediaDet interface



-- Depending on your Matlab version, the .mexw32 files may need to be renamed as .dll



-- The library usage is as follows,



　　[avi_hdl, avi_inf] = dxVideoOpen(avi_filename)

　　pixmap = dxVideoReadMex(avi_hdl, frame_num)

　　img = reshape(pixmap,[avi_inf.Height,avi_inf.Width,3])

　　dxVideoCloseMex(avi_hdl)



-- recompile the library

I have compiled the code with the DirectShow lib in Microsoft DirectX 9.0 SDK Update (December 2004)



-- known limitation

a)only works for windows :(

b)may be slow for big image frames and some codecs. -This library contains helper functions to read image frames into matlab from Video

file using DirectShow. This library has borrowed codes from Ashwin Thangali s

"DirectShow (DirectX) based AVI file reader", and it can read multiple video formats besides avi.



Features:

a) can read frames from rmvb, avi, etc.

b) handles most codecs installed on the system

d) its implementation is only based on the IMediaDet interface



-- Depending on your Matlab version, the .mexw32 files may need to be renamed as .dll



-- The library usage is as follows,



　　[avi_hdl, avi_inf] = dxVideoOpen(avi_filename)

　　pixmap = dxVideoReadMex(avi_hdl, frame_num)

　　img = reshape(pixmap,[avi_inf.Height,avi_inf.Width,3])

　　dxVideoCloseMex(avi_hdl)



-- recompile the library

　　I have compiled the code with the DirectShow lib in Microsoft DirectX 9.0 SDK Update (December 2004)



-- known limitation

　　a)only works for windows :(

　　b)may be slow for big image frames and some codecs.