VideoSpec Help > Exploring VideoSpec > Video parameters
  Video parameters

 Indications provided in this section are:
· Format of the video track,
· Size of the video track (Complete view),
· FourCC (Four Character Code), a sequence of four bytes which allows to identify in an unambiguous way, the nature of the video track (Complete view),
· The number of the video track (Video PID or video Process IDentification - Complete view),
· Rate of the video track in kilobit per second corresponding to the amount of information (bit) stored by second in the track. If mode of sampling is variable, then minimum and maximum bitrates are provided,
· Frame rate (Number of frames per second),
· Mode of sampling, i.e. whether the sampling rate is constant (CBR: Constant Bit Rate) or not (VBR: Variable Bit Rate) (Complete view),
· Encoding profile of the video track for some video formats,
· Resolution of the video,
· The Pixel Aspect Ratio (PAR) corresponding to the width-to-height ratio of a pixel,
· The Display Aspect Ratio (DAR) corresponding to the displayed width of an image divided by its height,
· Width and height of the track (Number of pixels in two dimensions),
· Format of subsampling which consists in the partial suppression of chroma information,
· TV Standard (PAL, NTSC or SECAM) (Complete view),
· Presence of interlacing which consists in reducing screen flicker due to low frequency scanning (case of cathode ray tube) by displaying image as two interlaced fields corresponding to two half-images,
· Writing library of the video track (Complete view),
· An additional field - Additional parameters - displaying additional informations for some file formats (AVI or mpeg for example) (Complete view),