View Full Version : How do standalones deal with nonstandard-framerate AVIs?
Chainmax
9th February 2007, 14:30
I am going to capture some freeware flash animations and the capture program only lets me use natural number framerates. Therefore, I either have the choice to capture at 24/30fps and then make the appropriate changes to video+audio or capture at 25fps and leave everything as-is. Before making the decision, I wanted to know how does a standalone handle nonstandard fps like 24, 30, 50 and 60.
shakey
9th February 2007, 19:27
My player seems to be fine, as I've played avi's ripped from NTSC disks on it with no problems (23.blah and 29.blah fps) (it's a pal player 25fps). I have no idea about framerates that don't fall into these standards though. If your player can handle both pal and ntsc then (I think) it's more likely that it'll work, though don't hold me on that.
SeeMoreDigital
9th February 2007, 22:30
Most standard definition capable MPEG-4/DVD players can handle 24.000 and 30.000 FPS sources just fine. My Tevion (Vaddis 888) can play standard-definition MPEG-4 at 50.000 and 60.000 FPS too.... I have not tried my Pioneer (MediaTek).
My high-definition capable player (Zensonic Z500 with Sigma EM8620L chip-set) can handle high-definition MPEG-4 at 50.000 and 60.000 FPS very well indeed :D
Chainmax
13th February 2007, 05:11
But how do they deal with it? Does some kind of pulldown (i.e: juddering) take place? Also, what should I expect from an extremely generic standalone with DivX support in that regard?
Mtz
13th February 2007, 06:56
Upload some small examples at different strange fps and I'll test for you in some "extremely generic standalones with DivX support".
enjoy,
Mtz
SeeMoreDigital
13th February 2007, 11:50
But how do they deal with it? Does some kind of pulldown (i.e: juddering) take place? Also, what should I expect from an extremely generic standalone with DivX support in that regard?Much depends on how intelligent your player and TV is.... All my TV's are multi-standard.
If say my player detects 24.000, 30.000 or 60.000 FPS sources it treats them as being NTSC and sends that "colour" information along to my TV. Like-wise if my player detects 25.000 or 50.000 FPS sources it treats them as being PAL and sends that "colour" information along to my TV instead.
Things do start looking weird when force say, NTSC speed sources to play on PAL only displays. Or PAL speed sources on NTSC only displays.... That's when you see dropped frames.
I started a thread about this very subject myself a few years ago....
Cheers
Chainmax
14th February 2007, 03:25
Mtz: will do so, thanks :).
SeeMoreDigital: so unless some funky standards mixup takes place, then no kind of framerate conversion takes place? That's good to hear, thanks :).
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