![]() Signal Processing with NumPy II - Image Fourier Transform : FFT & DFT Signal Processing with NumPy I - FFT and DFT for sine, square waves, unitpulse, and random signal OpenCV 3 image and video processing with Python The core : Image - load, convert, and save Sponsor Open Source development activities and free contents for everyone. The following iframes are from Vimeo: Twin Peaks San Francisco Sunrise (HDR time-lapse): The code not only works for Youtube but also works for Viemo. Source code is available from Github ( FFMpeg/iframe_extract.py) Parser = argparse.ArgumentParser(description='download video') # so, in this case, we want to rename it 'out.webm' # Sometimes output file has format code in name such as '' # video_out = ''.join(c for c in meta if c.isalnum()) + '.'+ metaĬmd = # remove non-alpha-numeric such as ' ', '(', etc. ![]() With youtube_dl.YoutubeDL(ydl_opts) as ydl: # Get video meta info and then download using youtube-dl Mvcmd = 'mv ' + imgPrefix + '*.png ' + imgPrefix # imgPrefix is used as a subfolder name that stores iframe images # Move the extracted iframes to a subfolder "select='eq(pict_type,PICT_TYPE_I)'",'-vsync','vfr', imgFilenames] # (ex) 'FoxSnowDive-Yellowstone-BBCTwo.mp4' # "select='eq(pict_type,PICT_TYPE_I)'" -vsync vfr oString%03d.png Iframe_extract.py - download video and ffmpeg i-frame extraction After downloading a video, it extracts iframes and store them subfolder that named after the video file name: But the code below includes the video download from YouTube. This is not much different from previous samples. Note: in my case, the ffmpeg command is in ~/bin directory. # ffmpeg -i inFile -f image2 -vf "select='eq(pict_type,PICT_TYPE_I)'" -vsync vfr oString%03d.png
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