Hello everybody
I just want to play at a very slow speed an MPEG-2 or MPEG-4 movie and see what kind of frame is the current one:
- "I" for Intra (independently encoded) frames
- "P" for predicted (by motion compensation) frames
- "B" for Bidirectional Interpolated frames
Or, if such a player doesn't exist, is there a way to re-encode the movie "marking visually" each frame where the mark is a letter "printed" on the picture.
Thank you very much!
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Falco2000, video newbie.
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With mpg, open the file directly in VirtualDub and look at the status bar in the bottom of the window. You will see something like this:
Frame 0 (0:00:00.000) [I]
Frame 1 (0:00:00.042) [B]
Frame 2 (0:00:00.083) [B]
Frame 3 (0:00:00.125) [P]Last edited by sanlyn; 23rd Mar 2014 at 10:47.
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It is not free, but VideoReDo has an option to display I,P,B. You can play the video or frame step the video one frame at a time. VideoReDo is intended to be an editor, but it has a play feature. Version 4 works with both MPEG-2 and H.264. You can try the trial version to see if it works for you.
A free option would be AviDemux 2.6. It supports both MPEG-2 and H.264. You view the I,P,B at the bottom, like VirtualDub suggested above. -
Thank you for your fast answers. I already had installed VirtualDub on my pc so I used that.
Thank you all very muchFalco2000, video newbie.
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Thank you to you too Jagabo.
By the way, just for curiosity, (I hope I'm not talking nonsense), is there a way to see the real visual information of each NON FULL frame (full is type "i" if I understood correctly, so I'm talking about the "b" and "p" frames)?
I mean, if some frames are only pieces of variations relative to full frames, is there a way to see those partial frames? They will surely look ugly, but I'm curious...
Or non full frames are just information for the decoder like "move these group of pixels there" so that there isn't any real visual piece of information?Falco2000, video newbie.
Let's everyone help each other. -
Last edited by jagabo; 3rd Oct 2012 at 10:55.
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