The VideoLAN Forums

yes, I think that's a must-have for any playlist.

suggestion: play multiple video files simultaneously in different output windows. The video position (timecode) should optionally be synced for all windows. Absolute syncing: absolute position (timecode) is same for all videos relative syncing: jump forward/backward by e.g. 20 seconds will jump forw...

thank you. are you talking about tools > effects and filters > video effects > image modification > motion detect ?

There is already one, by default in VLC.

where is it?
how can I use it?

Yeah, that's what I feared. Anyway, thank you for the good explanation. Yet the key frames are the ones that take most computational time... I thought it would be the opposite ... key frames require biggest file size, but least CPU, while B frames require least file size but most CPU (hence the b-fr...

With VLC you can do this:
viewtopic.php?f=2&t=55192#p307597 (post #3)

There also is a very easy way in another open source media player, but I don't know if it forum rules allow to post that here.

Hi, my PC is a bit old already and doesn't have enough CPU power to play high resolution video (which leads to stuttering). - Can I tell VLC to render the video at half its size so that I can at least watch the video in lower resolution? - Or in lower quality? - Or can I tell VLC to drop every secon...

bad implementation will just flood the forums with messages like this and this . The links have nothing to do with bookmarking/remember position. The first link is about the well-known frame-by-frame bug and the second link is about an instance where VLC failed to display consistent/correct timecod...

Tell you what: It doesn't even matter if the bookmark URL points to a local drive or a non-local resource. That distinction is not pertinent as even local content can change! Unless you want to store filesize + last modified file date (for speed gain, to avoid hash comparison if time or size differs...

I would just store the path to a file and the timestamp (seconds as integer value) in an xml file as posted above. That's very easy and would certainly make thousands of VLC users happy. Is your argument that since non-local content can change, bookmarks will not be implemented alltogether? It's lik...

oh, I didn't know you were talking about external optical discs. So you take an exceptional case (for which bookmarks are difficult to implement) as argument for not implementing them in general (where no showstoppers exist) ? Sure there might be ways to distinguish one DVD from another (file sizes,...

that's what you have the path for, no?

X:\someDVD\VIDEO_TS\
X:\someotherDVD\VIDEO_TS\

Seeing that creating bookmarks via CTRL+B is already possible (worksforme), isn't all there would be left to do: saving these bookmarks (i.e. the content of the CTRL+B window) in a bookmarks.xml file upon exit and reading it upon VLC start? <bookmark> <file>D:\path\file1.ext</file> <pos>600</pos> </...

. If needed, here is open-source code for scene change detection: http://www.bbc.co.uk/opensource/projects/shot_change/ ( = sourceforge.net/projects/shot-change ) http://www.mathworks.com/products/computer-vision/demos.html?file=/products/demos/shipping/vision/videoscenechange.html http://www.catena...

If this is not. Is it possible to tell VLC to extract a still image every N frames? Thanks in advance for any clues.... In case you still need an answer to that question (or as a reference for other readers), I hope I can help you with this tutorial: http://www.idosolu.com/tutorials/create-screenca...

I would also be incredibly thankful if you would be inclined to consider supporting this feature. Exporting the first frame of every new scene (i.e. upon scene change detection) as an image file, would be an enormous help in identifying added and deleted scenes when comparing 2 videos. (If Motion De...