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POUsing Python to execute a command on every file in a folder
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  1. POUsing Python to execute a command on every file in a folder
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    copied!<p>I'm trying to create a Python script that would :</p> <ol> <li>Look into the folder "/input"</li> <li>For each video in that folder, run a mencoder command (to transcode them to something playable on my phone)</li> <li>Once mencoder has finished his run, delete the original video.</li> </ol> <p>That doesn't seem too hard, but I suck at python :)</p> <p>Any ideas on what the script should look like ?</p> <p>Bonus question : Should I use</p> <blockquote> <p>os.system</p> </blockquote> <p>or</p> <blockquote> <p>subprocess.call</p> </blockquote> <p>?</p> <p>Subprocess.call seems to allow for a more readable script, since I can write the command like this :</p> <blockquote> <p>cmdLine = ['mencoder', sourceVideo, '-ovc', 'copy', '-oac', 'copy', '-ss', '00:02:54', '-endpos', '00:00:54', '-o', destinationVideo]</p> </blockquote> <p>EDIT : Ok, that works :</p> <pre><code>import os, subprocess bitrate = '100' mencoder = 'C:\\Program Files\\_utilitaires\\MPlayer-1.0rc2\\mencoder.exe' inputdir = 'C:\\Documents and Settings\\Administrator\\Desktop\\input' outputdir = 'C:\\Documents and Settings\\Administrator\\Desktop\\output' for fichier in os.listdir(inputdir): print 'fichier :' + fichier sourceVideo = inputdir + '\\' + fichier destinationVideo = outputdir + '\\' + fichier[:-4] + ".mp4" commande = [mencoder, '-of', 'lavf', [...] '-mc', '0', sourceVideo, '-o', destinationVideo] subprocess.call(commande) os.remove(sourceVideo) raw_input('Press Enter to exit') </code></pre> <p>I've removed the mencoder command, for clarity and because I'm still working on it.</p> <p>Thanks to everyone for your input.</p>
 

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