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Ran 17 Aug 2020 05:57AM UTC

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Committed 17 Aug 2020 05:53AM UTC coverage: 21.537% (-11.7%) from 33.195%

Job # 1029.4

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push

travis-ci

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web-flow

Commit Message

Add utility function `get_number_frames` (#260)

There is currently no way to query a video container to determine the number of
video frames that it contains, besides decoding video and counting the frames.
While this is the best you can do for some container formats, other container
formats can report the number of frames without decoding each video frame. I
have added a new function, `get_number_frames`, which will query the container
and return the number of frames, if applicable, or return `nothing` otherwise.
This function will not decode the video stream in order to determine the number
of frames.

I have additionally added simple tests of this function, a documentation string,
and added it to the docs.

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