-
tracking & dissolving issues with a slower FPS
Hello everyone,
I’m new to AE and I’ve been tinkering with a project for a friend who is a lawyer and needs video assistance for a case. I have a copy of a surveillance video, and he needs me to track a person in the crowd with a circle.
I created the circle, tracked the person manually (I know, not as elegant, but good enough to get me started), and rendered the file. I posted previously that in preview, I was not seeing the file in “Real Time”, and I understand that issue with AE.
My problems is that the final video slows down (there is a time code from the surveillance camera in the video and it doesn’t match actual run time). ALSO, the video seems to be “dissolving” from frame to frame. I believe this is because the original video is not recorded in 29.97 (Im assuming the surveillance camera records a few frames per second), and AE is dissolving the “moving circle” to the next marker.
Please let me know if I’m way off on this or not, and how can I make this work.
Thanks in advance,
Juan
-
2 Replies
-
Try placing the footage in a comp with the same frame rate. Ie, if the footage is actually 15fps, place it in a 15fps comp.
Another thing to check is that the footage is being interpreted properly. Select the footage in your project window and goto File: Interpret Footage: Main… and make sure the frame rate is set to what the footage should be at. This should be easy to check since there’s a timecode window burn.
Also, what issue are you having with preview not being real time. Are you just hitting the space bar, or are you using RAM Preview (‘0’ on the number pad)?
CS3, FCS2
[Note: Using Particular, 3-D Stroke, and now Form do not instantly make your designs “teh awesome.”] -
i would try to work in a comp that is the same frame rate as the footage…. so if the footage is 5 fps, then set your comp to be 5 fps… this will eliminate the circle moving in between the keyframes and should also eliminate what sounds like frame blending int he surveillance video.
another option would be to leave the comp the way it is and set the circle’s keyframes to ‘hold’ keyframes (select the keyframes in the timeline and choose animation>toggle hold keyframes). this will eliminate ae’s normal interpolation between keyframes.
the apparent frame blending may be remedied by making sure the frame blending option is not enabled for the footage layer. select the layer in the timeline, then choose layer>frame blending>off.
if it was already off, then there may be something else going on. select the footage in the project window and choose file>interpret footage>main. for the separate fields option, make sure it is set to off.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW
Reply to this Discussion! Login or Sign Up