Header information from a video file. An actual video file format will have its own internal header format; the fields of that internal header format are read into this abstract common header.
Fields
int width The width of the video, in pixels.
int height The height of the video, in pixels.
int frames The total number of frames of the video, if known to the global header.
char fourcc[] The fourcc identifier of the video, indicating what kind of decoder is needed to decode it.
int numerator The numerator of the video's frame rate.
int denominator The denominator of the video's frame rate.
int headerLength The length in bytes of the overall video header in the encoded file (this header instance is an abstract one constructed from a format-specific header in the encoded video file).