Don't assume we can tell when a file is closed; let FFmpeg do that for us.
Don't assume we can tell when a file is closed; let FFmpeg do that for us.

mikeboers/PyAV,pupil-labs/PyAV,PyAV-Org/PyAV,mikeboers/PyAV,pupil-labs/PyAV,pupil-labs/PyAV,PyAV-Org/PyAV,pupil-labs/PyAV