Created
December 22, 2019 14:23
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Extract all its frames from a video according to its native frame rate using ffmpeg with Powershell script languague as example.
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| [string]$your_video = Read-Host 'Plz enter the fullpath of your video to extract.' | |
| [string]$fps = ffprobe -v error -select_streams v:0 -show_entries stream=avg_frame_rate -of default=nokey=1:noprint_wrappers=1 -i $your_video # This will return a string like '30/1' | |
| [int]$fps = Invoke-Expression $fps # Let's try to run the string directly as an expression somehow like a trick. | |
| [string]$frame_count = ffprobe -v error -select_streams v:0 -show_entries stream=nb_frames -of default=nokey=1:noprint_wrappers=1 -i $your_video | |
| [string]$out_path = Read-Host 'Choose a fullpath to extract all its frames. (e.g., C:\Users\xxx\Desktop)' | |
| [string]$out_name_pattern = Read-Host 'Choose a name pattern of the frames. (e.g., Github -> Github_001.png)' | |
| # extracting | |
| ffmpeg -i $your_video -r $fps "$($out_path)\$($out_name_pattern)_%$($frame_count.Length)d.png" |
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