Pythonic video reader
Wrapper around opencv's cv2.VideoCapture to simplify reading video files in python.
Installation
In a terminal window run:
conda install pyvideoreader -c ncb
or
pip install pyvideoreader
Usage
Open a video file and read frame 100:
from videoreader import VideoReader
vr = VideoReader(video_file_name)
print(vr) # prints video_file_name, number of frames, frame rate and frame size
frame = vr[100]
vr.close()
Or use a context manger which takes care of opening and closing the video:
with VideoReader(video_file_name) as vr: # load the video
frame = vr[100]
Supports slice-syntax: vr[start:end:step]. To iterate over all frames you need to use vr[:]. To read every 100th frame, starting at frame 500 and ending at frame 10000 do this:
for frame in vr[500:10000:100]:
do_something_with(frame)
Lists, tuples or ranges can also be passed as indices, e.g. vr[(42, 314, 999)].
Note that indexing returns a generator - each frame in the indices is read on demand which saves memory. If you need all frames at once you can convert it to a list list(vr[start:end:frame]).
For compatibility, videoreader can also be used like the underlying cv2.VideoCapture:
ret, frame = vr.read() # read next frame
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Metadata
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Release files for pyvideoreader 0.5.7
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| pyvideoreader-0.5.7.tar.gz | 9.8 kB | Details |
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| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| pyvideoreader-0.5.7-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 17.0 kB
Release files / pyvideoreader-0.5.7.tar.gz
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