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Changing aspect ratio in video
I wish to know how to make the aspect ratio of video change part way through a video. I have provided a sample of what i wish to achieve here:
So I would want the video to be 1280 x 720 primarily but for a brief period, bring in the black bars to create a 1280 x 550 box. It is especially important that the transition is smooth as you can see the bars are animated as they close in.
Any help would be great.
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4 Replies
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Hi David,
Your best option would be to simply overlay letterbox bars.
You certainly can unlink the scale parameters for each clip and change the height, but that would result in deformation / stretching.
You can also use thePhotoshop file I attached and change the scale to get longer or shorter bars.
Finally, is you just want a quick and dirty letterbox, you can always use the cop filter.
Cheers,
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
I would simply animate in black bars at the top and bottom to decrease the viewing area to 550px
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I would add a crop effect and key frame it in.
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I would agree with the black bars being animated in.
However the way I would approach it is to set the top bar and bottom bar as individual clips, could even be a black video that is squashed and position it properly based on the final position and then set position keyframes at the end 1st. Then move back in time and animate them away to the position you need them to start in as the 2nd set of position keyframes.
Hope it worked out for you if this is coming to you too late.
Cheers JB
Jon Barrie
Adobe Video Solutions Consultant ANZ
Jon’s YouTube Tutorial Page
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