Screenshot-Problem für Tutorial

Hallo bregovic,

warum Offtopic - Bereich? Die Frage ist doch hier richtig.

Wenn Du einen Screenshot vom aktiven Fenster machst, ist es vollkommen normal, dass Du bei DVD2AVI nur eine schwarze Fläche hast. Denn im aktiven Fenster ist nur eine schwarze Fläche vorhanden, über welche das Bild gelegt wird. Ob ein Schreenshot des gesamten Bildschirms Abhilfe schafft, kann ich im Moment nicht überprüfen.

LigH hat dazu im alten Doom9 geschrieben:

Zitat

Wenn die jeweiligen Programme das nicht freiwillig tun und eine passende Funktion anbieten, wird es schwer sein, ein Programm zu finden, dass das kann. Denn die üblichen Screenshot-Tools können nur die Desktop-Ebene lesen. Videos liegen jedoch im Optimal- Fall in einem Overlay, also "über" dem Desktop. Und an dessen Inhalt kommt normalerweise kaum ein anderes Programm heran. Wahrscheinlich hilft eine Suche mit Google nach "screenshot video overlay" oder ähnlichen Stichworten.

MIt HyperSnap DX soll es gehen. Das sagt die FAQ

Zitat

How to capture image from a movie (Media Player, RealPlayer, DVD etc.)

Video playing on Windows machine, no matter if it comes from a movie file, Internet, VCD or DVD, can not be captured by regular screen capture methods, because it is usually playing in a hardware overlay. The overlay it almost as if there was another, smaller screen in front of your regular Windows desktop screen. The desktop contains in that place only the so called "overlay key color" - a solid block of color, usually black, blue, magenta or pink, but it can be anything.

A regular screen capture program will capture just that key color, which gives you a funny effect - if your movie is still playing, and your captured that key color into HyperSnap-DX (or any other software) window, and you move that window so that it partly covers the movie player - you will see the movie through the part where this key color was. It seems as if your HyperSnap-DX window had a "hole" and the movie shows through it. This is because the overlay hardware controller is programmed to display that movie everywhere where that key color is on the desktop.

How to deal with this problem? There are two methods. In some movie players (e.g. Windows Media Player, Real Player) you may disable "hardware acceleration" through their "settings" or "options" menu. This turns off the overlay use, the movie is played then normally, within Windows desktop and every screen capture program can get it. The other method (if you can't or don't want to disable the overlay) is to use HyperSnap-DX "special capture" method, described below:

The video capture will work or not, depending on which video player software you are using, and if it uses DirectX or not. Here is the correct movie/DVD capture procedure to follow:

1. Enable "Special Capture" in HyperSnap-DX under "Capture" menu. Click on that item and make sure that DirectX "Primary" and "Overlay" surfaces are turned on. Then click on OK button.

2. Run the movie/DVD player, pause the movie where you want to capture, click on the player window to make sure it is the front window, then press Scroll Lock key (HyperSnap-DX special capture hot key).

3. Click on HyperSnap-DX window and see what was captured. If you don't see the movie picture there, most probably your DVD player software does not use DirectX. For DVD captures, try to download PowerDVD program from the net and use it when you need to snap pictures from movies.

4. If you do see a picture in HyperSnap-DX window, but it has incorrect proportions, or maybe is also repeated several times, please crop and scale image to correct proportions with the functions available under "Image" menu. If you must make a lot of such DVD captures, you may set the "Quick Crop & Scale" function under the "Capture/Capture Settings" menu in HyperSnap to perform this cropping and scaling automatically on each captured image. It will let you to auto- crop each image you capture (so that only one image remains) and then scale it to correct proportions. Please don't forget to turn this "Quick..." function off when done with DVD captures and trying to do regular Windows screen shots.

5. If the above does not work (you still get a full screen capture with some solid color where the DVD was, your DVD player program does not use DirectX, so HyperSnap-DX can not capture from it. Please try to find or buy another DVD player software, one that is based on DirectX, such as PowerDVD, SoftDVD, WinDVD or other.

Alles anzeigen

1) DVD2AVI dürfte eine eigene Funktion haben, das gerade angezeigte Bild als Bitmap zu speichern.

2) Über AviSynth und MPEG2DEC-Plugin (das Skript erstellt mit MPEG2toVirtualDub, FitCD oder GordianKnot) oder direkt per VirtualDubMod's Funktion "File | Open via AviSynth" lassen sich auch MPEG2-Videos öffnen, dann klappt der Screenshot mit [Strg]+[1].

Und das ausgeschnittene Bild kann man dann u.U. per Grafikprogramm in das geschossene Programmfenster einsetzen.