count_frames

lib.video.count_frames(filename, fast=False)

Count the number of frames in a video file

There is no guaranteed accurate way to get a count of video frames without iterating through a video and decoding every frame.

count_frames() can return an accurate count (albeit fairly slowly) or a possibly less accurate count, depending on the fast parameter. A progress bar is displayed.

Parameters:

  • filename (str) – Full path to the video to return the frame count from.

  • fast (bool, optional) – Whether to count the frames without decoding them. This is significantly faster but accuracy is not guaranteed. Default: False.

Returns:

The number of frames in the given video file.

Return type:

int

Example

>>> filename = "/path/to/video.mp4"
>>> frame_count = count_frames(filename)