mj2_video_source::time_to_frame

Overrides kdu_compressed_video_source::time_to_frame

Use this function to determine the frame whose period includes the supplied time_instant, measured in the time scale (ticks per second) identified by the get_timescale function. If time_instant exceeds the duration of the video track, the function returns the index of the last frame in the video. If time_instant refers to a time prior to the start of the video sequence, the function returns 0.

time_instant [kdu_long]