CV.Video

Documentation

newtype Capture

Constructors

Capture (ForeignPtr Capture)

withCapture :: Capture -> (Ptr Capture -> IO b) -> IO b

releaseCapture :: FinalizerPtr Capture

newtype VideoWriter

Constructors

VideoWriter (ForeignPtr VideoWriter)

withVideoWriter :: VideoWriter -> (Ptr VideoWriter -> IO b) -> IO b

releaseVideoWriter :: FinalizerPtr VideoWriter

type VideoStream c d = Stream IO (Image c d)

streamFromVideo :: Capture -> Stream IO (Image RGB D32)

streamFromVideo' :: Image RGB D32 -> Capture -> Stream IO (Image RGB D32)

captureFromFile :: String -> IO Capture

captureFromCam :: Integral a => a -> IO (Maybe Capture)

dropFrame :: Capture -> IO ()

getFrame :: Capture -> IO (Maybe (Image RGB D32))

data CapProp

Constructors

CAP_PROP_POS_MSEC

CAP_PROP_POS_FRAMES

CAP_PROP_POS_AVI_RATIO

CAP_PROP_FRAME_WIDTH

CAP_PROP_FRAME_HEIGHT

CAP_PROP_FPS

CAP_PROP_FOURCC

CAP_PROP_FRAME_COUNT

CAP_PROP_FORMAT

CAP_PROP_MODE

CAP_PROP_BRIGHTNESS

CAP_PROP_CONTRAST

CAP_PROP_SATURATION

CAP_PROP_HUE

CAP_PROP_GAIN

CAP_PROP_EXPOSURE

CAP_PROP_CONVERT_RGB

CAP_PROP_WHITE_BALANCE_BLUE_U

CAP_PROP_WHITE_BALANCE_RED_V

CAP_PROP_RECTIFICATION

CAP_PROP_MONOCROME

Instances

Enum CapProp

fromProp :: CapProp -> CInt

getCapProp :: Fractional b => Capture -> CapProp -> IO b

getFrameRate :: Fractional a => Capture -> a

getFrameSize :: (Integral t1, Integral t) => Capture -> (t, t1)

setCapProp :: Real a => Capture -> CapProp -> a -> IO CInt

numberOfFrames :: Integral a => Capture -> a

frameNumber :: Integral a => Capture -> a

data Codec

Constructors

MPG4

Instances

Eq Codec

Show Codec

createVideoWriter :: (Integral t1, Integral t) => String -> Codec -> CDouble -> (t, t1) -> IO VideoWriter

writeFrame :: VideoWriter -> Image RGB D32 -> IO ()

cvCreateFileCapture :: Ptr CChar -> IO (Ptr Capture)

cvCreateCameraCapture :: CInt -> IO (Ptr Capture)

cvGrabFrame :: Ptr Capture -> IO CInt

cvQueryFrame :: Ptr Capture -> IO (Ptr BareImage)

cvGetCaptureProperty :: Ptr Capture -> CInt -> IO CDouble

cvSetCaptureProperty :: Ptr Capture -> CInt -> CDouble -> IO CInt

wrapCreateVideoWriter :: Ptr CChar -> CInt -> CDouble -> CInt -> CInt -> CInt -> IO (Ptr VideoWriter)

cvWriteFrame :: Ptr VideoWriter -> Ptr BareImage -> IO CInt