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    The menu Video of DVdate


    to apply commands on the active file


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Last update

on Saturday, April 19, 2008



The menu Video of DVdate

click on a menu command to go to the corresponding paragraph


     The menu Video of DVdate

    The menu Video contains some different commands that change the play mode of the video, that open the selected files in other applications, that modify some characteristics of the video file, or manage the file itself. Remember that the available commands may vary with the selected file. Some commands are only available with DV files, or even DV files of type 2, others with files having datecode, etc...

      check01_green.gif Play plays the selected video in DVdate. You may also hit the Space bar of the keyboard. While the video is playing, three items are continuously updated: the datecode and the timecode on the information panel - if available in the video - and below the video, the timestamp, ie the position of the current frame in the video in hours: minutes: seconds: frames. If you are playing a DV video of type 1, then the aspect ratio (4x3 or 16x9) and the audio frequency may also change from frame to frame. They are updated in real-time during the play.

      check01_green.gif Pause puts the video in the pause mode. The Space bar also toggles between Play and Pause. In pause mode, which is the default mode when a video is selected, it's easy to navigate through the video with the trackbar above the video or by typing CTRL+arrow at the keyboard. With the arrow keys Right and Left you may step forward or backward for one frame, with the arrow keys Up and Down you may step forward or backward for one second, with the arrow keys Page Up and Page Down you may step forward or backward for one minute, and with Home or End you go back to Start or advance to the End of the video. Don't forget to hold the key CTRL pressed at the same time than the arrow key. If a scn file is available, you may also browse from scene to scene with F8 and F9. If it is not, you may create one in the menu Scenes.

      check01_green.gif Sound Off /Sound On mutes the sound Off or On. You may launch these commands not only while the file is playing but also while it is paused, the change will then only take effect when the video is later played. CTRL+M has the same effect. Remember that the keys + or - from the numpad increase or decrease the volume.

      check01_green.gif Stop deinterlacing or Deinterlace activates or desactivates the deinterlace process of the video. It is very useful to deinterlace for instance DV videos to have a better image without stripes. But this process is consuming CPU power. So if you computer is limited in power, just desactivate this function. .

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      check01_green.gif Open with ImageGrab or a name like that is a command that appears only if in the Settings panel (F10) and under the tab Files, you have indicated a valid filename for ImageGrab. In that case, this command, or the function key F2 opens the selected video in ImageGrab where you may extract images in format jpg or bmp from the video. If you don't know my freeware program ImageGrab, look here. For some recent versions of ImageGrab, be sure to check the box in order to open the selected video file.

      check01_green.gif Open with xxx: two third-party's applications may be affected in the Settings to the key F3 and F4. When the key is pressed, the application is launched with the selected files open in it. If the application can open only one file at a time (like virtualdub or gspot) then only the active file of DVdate will be opened.

      check01_green.gif Play with default media player or F5 launches the video in the application associated in Windows with AVI files. Generally it's either Windows Media Player, or RealPlayer or a program like that.

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      check01_green.gif Read the RIFF header or CTRL+H. This function opens a new window displaying the RIFF header  of the selected avi file. This function is like the program riffwalk.exe that Microsoft used to include in earlier versions of the SDK Windows but that it no longer distributes. The old riffwalk was actually only a command-line program, very painful to use. DVdate does almost the same, but very comfortably.

      It would be too long to explain here what is the RIFF header of an AVI. Look for instance here for an explanation. It is probably the most comprehensive way to look what's inside the AVI file, and to verify if it is not corrupted. It contains information about file indexes, about the AVI standard avi 1.0 or avi 2.0 odml, and even information about the garbage bytes that some applications insert into the AVI files, sometimes to align the RIFF chunk in order to read them more easily,  but sometimes also as a spy data about the application used for capture or transformation etc... If you want to be safe from such spy data, use my freeware application CaptureFlux which writes nothing more than needed into the video.


      When the RIFF header is displayed, a button Save allows to save this header as a text file (with extension log) to your hard disk, and a button Close closes the Header window and returns to the main DVdate window.

        check01_green.gif Fix the video framerate or CTRL+Y fixes the video framerate (number of frames per second) in the header of the avi file. This command is not enabled for avi DV of type 1. It is specially useful for some MJPG avi files with a wrong framerate given when captured by an analog capture board. This command opens a new window where you may set a new framerate. Two values are proposed 25 or 29,97 frames per seconds, but you  may also set a personalized framerate. Click OK to apply the new value or Cancel to quit the window without modification.

      When you change the framerate,  the audio stream is not modified. Thus the audio duration may now be different from the video duration as indicated by the information panel of DVdate (two different values for Duration, in parentheses is the audio duration) and the AVI may be out of sync. But if this was the case before fixing, a change of framerate may sometimes repair the issue..

       check01_green.gif Change the codec: When you click on this command, DVdate lets you fix the 4 characters making the codec of the AVI file, that is called the FourCC. Do it only if you know what you do, otherwise your file could be un-usable. Two purposes are to consider: first of all, change XVID into DivX could sometimes help to read your video on some standalone DVD players, who accept the second FourCC and not the first. Secondly, you may meet different kinds of DV codecs,of course the standard dvsd from Microsoft, but also a variant dsvd or some proprietary codecs such CDVC from Canopus. By changing the codec, you may operate a video with one codec in an application accepting only another one.

       check01_green.gif Modify the date of file or CTRL+B replaces the windows filedate of your video by the datecode, ie the date and time when the video was shooted. This is useful to show the datecode in most applications, even Windows Explorer, and can be used to sort the files. In a video file captured by a camcorder and transferred to a computer, the file date is the date of the transfer. It has no great significance. The date of capture by the camcorder is more interesting. Of course this command is only available for video DV having a datecode

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       check01_green.gif Parent folder or CTRL+F displays the folder containing the selected video file. You may then have a direct access to this file in Windows to copy it, delete it, rename it and son on...  You may also open the parent folder by clicking on the name of the selected video above the information panel.

        check01_green.gif Remove the file or Del removes all selected files from the playlist. The files on the hard drive are not modified, only their names are removed from the playlist

        check01_green.gif Delete the file or Shift+Del sends all selected files to the Recycle Bin or deletes them if they are too big for the Recycle Bin. A confirmation is indeed requested because this command may delete them really from the hard disk.

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