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POcan't get quicktime to export mov into pngs with apple script
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copied!<p>i was wondering if anyone can tell me how to make this script work. I tried for hours and i can't figure out why it fails.</p> <p>This script tells Quicktime to advance in a quicktime movie/presentation (generated by keynote) and export a image for every last frame of every chapter in this movie.</p> <pre><code>property Main_folder : missing value set Main_folder to choose folder tell application "QuickTime Player 7" if not (exists document 1) then error "No movies are open." stop movies tell front document to set {currMovie, T_name, duration_list, current time} to ¬ {it, text 1 thru -5 of (get name), duration of chapters of (get first track whose kind is "Sprite"), 0} set T_target to my makeFolder(T_name) repeat with i from 1 to (count duration_list) tell currMovie set current time to current time + (item i of duration_list) export to (T_target & T_name & " Chapter " & i) as picture using settings preset "Photo-JPEG" -- or "Uncommpressed", or "PNG" end tell end repeat end tell on makeFolder(n) tell application "Finder" to return (make new folder at Main_folder with properties </code></pre> <p>My problem here is that it saves the images in PICT format instead of PNG. The relevat part of the script is here:</p> <pre><code>export to (T_target & T_name & " Chapter " & i) as picture using settings preset "Photo-JPEG" -- or "Uncommpressed", or "PNG" </code></pre> <p>I tried it with PNG and and Photo-JPEG only but it still only generates images in the PICT format</p> <p>Does anyone know how to do this? I can't find any mistakes in the script ... it should work.</p> <p>Any advice is welcome! Thx in advance.</p> <p>Best regards,</p> <p>zhengtonic</p> <p><em>update</em></p> <p>If anyone is interested i found the reason: </p> <p>Quicktime 7 is not able to grap a still image from a mov and export it as png/jpeg. I found a workaround by converting the videos to mp4 and than extracting certain frames.</p>

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