Is it possible to watch two clips simultaneously?

[ione]

I am working on a project that has almost exactly the same content except different version. I wish to know if it is possible to watch these two clips at the same time? The first clip being an avi file running for 5.35 while the second one runs for 4.55. both have the same beginning and ending. but i wish to know at which scene had been cut or changed exactly by looking at the frames. it is too difficult to notice these changes if i were to watch one at a time, as i can't compare exactly which frame differened from the other if the movement is too quick. any program out there that makes it all possible? be the format in avi or mpeg?

[gadgetguy]

AviSynth using StackHorizontal() will let you see them side by side, frame by frame.
If the videos don't have the same resolution then one of them will have to be resized to match the other before you can stack them.

[guns1inger]

A simple avisynth script can do. Something like

a=AVISource("pathtoclip1")
b=AVISource("pathtoclip2")
StackHorizontal(A,b)

Load it into virtualdub or MPC and watch away.

The problem will be that they will get further and further out of sync over time, making the differences harder to see.

[AlanHK]

i wish to know at which scene had been cut or changed exactly by looking at the frames. it is too difficult to notice these changes if i were to watch one at a time, as i can't compare exactly which frame differened from the other if the movement is too quick. any program out there that makes it all possible? be the format in avi or mpeg?

To show the frame numbers and times, modify gunslinger's script:

AVISource("pathtoclip1")
ShowFrameNumber(x=100,y=100)
ShowSMPTE(x=100,y=120)
a=last

AVISource("pathtoclip2")
ShowFrameNumber(x=100,y=100)
ShowSMPTE(x=100,y=120)
b=last

StackHorizontal(a,b)

You can step through this in VirtualDub frame by frame by clicking right-arrow.

[jagabo]

You can also use ChangeFPS() on one of the clips to make the durations equal. For example, since the running time of the first file is ~13 percent longer than the second, you can decrease the frame rate of the second by ~13 percent to make it's running time the same. So if the second clip's frame rate is 25 fps, use ChangeFPS(22.015)

a=AVISource("pathtoclip1")
b=AVISource("pathtoclip2").ChangeFPS(22.015)
StackHorizontal(A,b)

[ione]

thanks everyone for your help. this is the solution i am looking for. but i am fairly new to scripts so i have yet to figure out how or where to start (putting all these). this site is great so i'm sure i'll find a way to do that, but may need help along the way.. will keep you posted guys.

[jagabo]

AvsP is a good program to help you create scripts.

[ione]

Thanks, jagabo. Tried AvsP and got it to work. Everyone's been helpful.

[darkknight145]

what version of windows are you running? if running XP just open 2 instances of Mplayer2 which is an older version of windows media player still included in XP, you can then load the separate videos into each and hit the play buttons

[juststarting]

I've seen side by side clips when they compare golf swings after lessons and on TV. Would this be comparable?? Anyone know what program they use?

Thanks

[johns0]

Just use media player classic and goto view/options and choose open a new player for each media file played,use this as your default player and you can watch 3 different movies at the same time if wanted.