@beyondmetis @grovduck
I still get the error on windows 10

for frame in skvideo.io.vreader(v_path):
  File "C:\Users\Anderson\AppData\Local\Programs\Python\Python35\lib\site-packages\skvideo\io\io.py", line 240,
in vreader
    assert _HAS_FFMPEG, "Cannot find installation of ffmpeg."
AssertionError: Cannot find installation of ffmpeg.

but

C:\Users\Anderson>where ffmpeg
C:\Libs\ffmpeg-3.2.2-win64-static\bin\ffmpeg.exe

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The pip version has not been updated yet. Try github version of scikit video and see if that fixes your problem.

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@grovduck you installed it using pip or fr

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Thank you for taking the time to bring this to my attention!

I'd like to make this package more compatible with Windows. The only thing I'd change specifically is minimizing external package dependencies. The where package you linked looks like it uses the MIT license, which allows direct incorporation into scikit-video.

I'm not sure if you have time, but I noticed that you have experience with appveyor? Scikit-video would benefit from this, so that Windows gets tested prior to packaged releases.

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Windows should be supported now, based on the information you provided. Let me know if you have problems.

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@beyondmetis, sorry for just dropping this. I just tested against 87089a9 and it works like a charm. I also ran tests and had to make a couple of edits based on being on python 2.7. These were one of two things:

• Testing accumulation in test_ffmeg.py, test_libav.py, and test_vreader.py, I made the denominator a float to ensure floating-point division (e.g. float(T * M * N * C))
• In test_measure.py, I wasn't getting the decimal precision on a couple of tests, notably test_measure_BRISQUE and test_measure_VideoBliinds. I had to set BRISQUE to 7 and VideoBliinds to 4.

Thanks for making this change. My "experience" with appveyor is really just toying around with it, so I'm probably not the right person to pick that up. But I'm happy to write up notes on what I needed to do to make it work with Windows if that's helpful.

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@beyondmetis actually nvm I use the pip version and I doubt it has been updated to reflect github I'll install github version

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@AndersonReyes, yep that was the trick for me.

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@AndersonReyes That is correct. The pip version hasn't been updated in roughly a month. It'll be updated soon after the next round of bug fixes.

@grovduck Thanks for testing! I'll see if I can figure out those precision issues. Since this is often due to an out-of-date numpy/scipy package, what version of numpy/scipy are you using?

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@beyondmetis, here is my setup. I'm pulling wheels for numpy/scipy from the Christoph Golhke site, maybe something with the addition of the Intel Math Kernel Library is affecting precision issues?

numpy==1.12.0+mkl
scipy==0.18.1
sk-video==1.1.7

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@grovduck kindly help me..

I am gettiung this for windows 10
File "C:\Users\bismil\AppData\Local\Programs\Python\Python35\lib\site-packages\skvideo\io\io.py", line 240, in vreader
assert _HAS_FFMPEG, "Cannot find installation of ffmpeg."
AssertionError: Cannot find installation of ffmpeg.

from scikit-video.

or from github?*

from scikit-video.

using pip

from scikit-video.

@sanaullahmanzoor1988 use the github version scroll up he explains why. Although I don't know if he haz updated pip version yet.

Note I tagged wrong person ealier lol

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Detailed error view)
C:\Users\bismil\Documents\Python Scripts\LipNet-master\evaluation>python predict.py models/weights04.h5 samples/id2_vcd_swwp2s.mpg
Using TensorFlow backend.

Loading data from disk...
Traceback (most recent call last):
File "predict.py", line 46, in
video, result = predict(sys.argv[1], sys.argv[2])
File "predict.py", line 20, in predict
video.from_video(video_path)
File "c:\users\bismil\documents\python scripts\lipnet-master\lipnet\lipreading\videos.py", line 119, in from_video
frames = self.get_video_frames(path)
File "c:\users\bismil\documents\python scripts\lipnet-master\lipnet\lipreading\videos.py", line 172, in get_video_frames
frames = np.array([frame for frame in videogen])
File "c:\users\bismil\documents\python scripts\lipnet-master\lipnet\lipreading\videos.py", line 172, in
frames = np.array([frame for frame in videogen])
File "C:\Users\bismil\AppData\Local\Programs\Python\Python35\lib\site-packages\skvideo\io\io.py", line 240, in vreader
assert _HAS_FFMPEG, "Cannot find installation of ffmpeg."
AssertionError: Cannot find installation of ffmpeg.

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ffmpeg is working

(detail view)
C:\Users\bismil\Documents\Python Scripts\LipNet-master\evaluation>ffmpeg
ffmpeg version N-85653-gb4330a0 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 61.100 / 55. 61.100
libavcodec 57. 93.100 / 57. 93.100
libavformat 57. 72.101 / 57. 72.101
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 87.100 / 6. 87.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'

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after installing scikit video
from https://github.com/scikit-video/scikit-video
I executed

import skvideo
print(skvideo.file)
C:\Users\bismil\AppData\Local\Programs\Python\Python35\lib\site-packages\skvideo_init_.py

means now scikit-video is working but still got

Error:

File "C:\Users\bismil\AppData\Local\Programs\Python\Python35\lib\site-packages\skvideo\io\io.py", line 240, in vreader
assert _HAS_FFMPEG, "Cannot find installation of ffmpeg."
AssertionError: Cannot find installation of ffmpeg.

from scikit-video.

Above error is resolved but got
New error:

videogen = skvideo.io.vreader(path)
AttributeError: module 'skvideo.io' has no attribute 'vreader'

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from scikit-video.

After removing sk-video in python 3.5
my code working ...

because scikit-video is getting conflict with sk-video

for python 3 remove sk-video

@AndersonReyes @beyondmetis @grovduck thanks all <3 :)

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I am getting the similar error can you please suggest the alternative or work around.

File "C:\ProgramData\Anaconda3\lib\site-packages\skvideo\io\io.py", line 133, in vread
assert _HAS_FFMPEG, "Cannot find installation of real FFmpeg (which comes with ffprobe)."

from scikit-video.

I do suggest the alternative. Install from github and also delete all mention of your current scikit-video install.

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from scikit-video.

@nitingulati7 https://github.com/scikit-video/scikit-video/blob/master/README.rst

Under installation and dependecies the github part its relative straight forward. Install dependencies using pip install

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@AndersonReyes I followed the steps but I still getting the same error, There some issue where _HAS_FFMPEG is setting to O or null
here is my code snippet
import skvideo.io

skvideo.setFFmpegPath("D:/ffmpeg/bin")

a frame from the bigbuckbunny sequence

vid = skvideo.io.vread("D:/scikit-video-master/scikit-video-master/doc/examples/vid_luma_frame1.png")
T, M, N, C = vid.shape

print("Number of frames: %d" % (T,))
print("Number of rows: %d" % (M,))
print("Number of cols: %d" % (N,))
print("Number of channels: %d" % (C,))

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@nitingulati7 what's in your bin folder? I can take a look, unless @beyondmetis already on it

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@nitingulati7 does it matter that you are using forward slashes on a windows computer? Also, have you tried running the setFFmpegPath function two times in a row, as in #38 ?

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@AndersonReyes : in the bin folder i have exe for ffmpeg, ffprobe & ffplay which i had downloaded from ffmpeg.org

@beyondmetis: SetFFmpegpath command works fine after changing code in skvideo_init_.py line no: 308
if os.path.isfile(_FFMPEG_PATH + "/ffmpeg**.exe**") and os.path.isfile(_FFMPEG_PATH + "/ffprobe.exe"):
_HAS_FFMPEG = 1

But it failed when I am trying to use the reader, some where in the code _HAS_FFMPEG get reset to false

I also tried to run "test_ffmpeg.py" but it doesn't find _HAS_FFMPEG as true and skips the function execution

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and I am using python 3.6

from scikit-video.

Just a note, a way to solve/avoid the forward slashes on window would be to use os.path.normpath() and/or the rawstring character in front of the string.

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@nitingulati7 this may have been fixed just recently. Let me know if you are still having issues.

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@beyondmetis No it didn't work for me.

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@nitingulati7 I will need to inspect using python3.6 and possibly also a Windows 10 machine to understand what's missing.

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Just a note that I ran into the same problem of sk-video not being able to find ffmpeg, but on Mac OS 10.12.4. I uninstalled sk-video and then followed the directions on the README page and installed sk-video from github and now it works.

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Thanks. It might be getting close to time for a new release.

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Yeah, I would definitely say that if pip install... results in this error on Mac OS and Windows, it would be really good to update the code pip install... creates a working package. If I weren't so motivated to get it working, and didn't know to look in the issues, I would have given up and tried an alternative. This is not to be critical, just realistic. I really appreciate what you've done in creating this package.

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I don't have access to a mac right now, so I haven't been able to test pip on that platform. I have tested that pip install sk-video works great on Windows and several Linux flavors. I'm not sure why your system has this issue, but I'm glad you were able to get it working in the end.

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I wish I could point to a concrete reason for the problem, but am glad that this issue was open to direct me toward doing a direct install from the github repository. I probably should have thought of that myself... :)

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installed with pip install sk-video on Windows 10x64 with python 3.6, no problems at all

UPDATE: no problems with pip install also on macOS 10.13.1, python 3.6

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@carlodri I'm getting the same error:
assert _HAS_FFMPEG, "Cannot find installation of ffmpeg."
AssertionError: Cannot find installation of ffmpeg.
I'm using Windows 10 and did what you suggested.

When I do where.where('ffmpeg')
It returns: []

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