OpenCV video I/O Structure
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OpenCV video I/O Structure
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OpenCV
Video I/O
MEDIA DEVICES
SYSTEM
USER APPLICATION
OpenCV Video I/O
OpenCV Video I/O API Backends
DShow
MSMF
FFMPEG
V4L
VFW
AVF/IOS
etc...
OPENNI
Manufacturer Driver
C / C++ / JAVA API
cv::Mat frombuffer
ManufacturerLibrary
BackendsLibraries
O.S.Libraries
set / getproperties
grab / writeframe
Camera
Video File
Network Stream
create / opendevice
CODECS(fourcc)
VideoCapture
VideoWriter
Camera
File or URL stream+ fourcc codec