75
You can do a simple image overlay using the following syntax:
ffmpeg -i input.mp4 -i image.png \
-filter_complex "[0:v][1:v] overlay=25:25:enable='between(t,0,20)'" \
-pix_fmt yuv420p -c:a copy \
output.mp4
overlay=25:25 means we want to position the image 25px to the right and 25px down, originating from the top left corner (0:0).
enable='between(t,0,20)'...
15
I found that using Adobe Media Encoder is much easier when just cropping.
Add the video to the queue and open the export settings.
On the source tab you can crop the video and there you can also enter how many pixels to remove at each side.
Remember to set the correct output size in the video tab on the right side.
Here is a screenshot showing how i did it:
11
Yes, this is possible using ffmpeg and the mkv container.
An example command sequence would be:
ffmpeg -i input1 -i input2 -c copy -map 0 -map 1 output.mkv
source
Breaking down the command:
-i input1 This selects the first input file. Could be something like my video_track1.mov.
-i input2 Here you can specify the second input file. You can add another ...
10
If you want to Preview Audio you need to use RAM Preview... Press Numpad 0 on the number pad (shortcut key for Ram Preview), then you can hear the audio.
Press Numpad 0 on the Numberpad.
9
I think I've found the easiest way!
Just crop the area you want.
Go to the Export window without worrying about the black margins showing.
Set the final resolution and export settings as you would want.
(THIS IS THE IMPORTANT ONE) On the top left of the Export Window, there are two tabs; SOURCE and OUTPUT. Go to the Source Tab.
On the left-most side, find ...
9
According to Adobe, it's a bug. Until Adobe fixes this bug with an update, the workaround is to switch off GPU acceleration in Project Settings.
7
I would probably approach it by first measuring the size of the area that you want to crop to. This can be done by exporting a frame of the image and cropping in another program (like Photoshop).
I would then create a sequence based on the other settings of the video, but alter the resolution of the sequence to be that of the portion of the video you ...
7
This is an addition to the excellent answer by PTS and an answer for chovy. If you want to place the overlay at the lower right corner, FFMPEG can calculate that for you very easily.
Use the modified command:
ffmpeg -i input.mp4 -i image.png \
-filter_complex "[0:v][1:v] overlay=W-w:H-h:enable='between(t,0,20)'" \
-pix_fmt yuv420p -c:a copy \
...
7
This is possible with the FFmpeg command ffmpeg -i input.mp4 -ss 0 -c copy -t 60 output.mp4. This would cut the video from the beginning -ss 0 to second 60 -t 60.
Be aware that -ss is and offset which -t is based upon. So -ss 10 and -t 60 would result in cutting to second 70 and removing the first 10. You can use the -to option to cut at a fixed time ...
7
If you have a frame where the person does not exist, you can use a tool called a difference matte. (You'll need to scroll down to the section titled "Difference Matte Effect" for a description.) It will find a difference between the frame without the person, and the frames with a person and remove areas that are the same, leaving only the difference (in this ...
6
After Effects is not designed as an editing platform. Audio preview only works when you do a RAM Preview and pre-render all the frames for the content you are previewing. You never get Audio with the real-time preview.
The intent behind RAM Preview is that it lets you check the final quality of the render prior to writing it to disk, but it isn't really ...
6
Letter box if you have bars on the top and bottom.
Pillar box if you have them on the sides.
Stretch (or possibly anamorphic, depending on what the intended playback aspect ratio is) if you are full screening it by stretching it out to fill the space.
Cropped if you are making it full screen by cutting off the edges.
6
Have a look into the new Blackmagic Davinci Resolve, which includes an NLE and color correction tool. it is free and can output a maximum resolution of 3840x2160.
6
Do you realize people go through years of academical studies or expensive courses at private universities to learn all that? It's certainly not something you're going to master by watching a few Youtube videos ...
If you want to seriously get into film making, I would suggest you take a course. Not necessarily a full blown film studies degree, but you could ...
6
There are methods to generate frames in between frames, mostly giving you mixed results.
For one, the plugin "twixtor" (~330$) actually does a somewhat decent job at assuming missing frames, so much so, that a 30fps video can be played back at half the speed, making it look like 60fps slow-mo.
On the other hand side, you can sample the frames directly in ...
5
If you're on Linux, consider Cinelerra: the most powerful video editor for Linux, Openshot: simple, powerful, and free video editor for Linux, or Kdenlive (also available for FreeBSD and Mac OSX): Free and open source video editor for GUN/Linux and FreeBSD
Openshot and Kdenlive can be installed via apt-get install, however Cinelerra requires a little more ...
5
I tried kdenlive, so I'll post my findings about it as an answer. It didn't quite do the job, so I'm not going to mark this as the accepted solution.
kdenlive easily imports my clips in mjpeg+pcm, and flac. And looks like it can export through ffmpeg, which is what I want.
It has a feature to "set audio reference", and for other tracks, "align audio to ...
5
First off there would be Lightworks, which is free with some limitations. It's a pure abomination and needs a lot of learning an rethinking if you're used to usual NLE software.
Then, what most people don't think of, there would be Blender. Actually a 3D rendering software, but also a very good, free/open source video editor. Like all software, it has a ...
5
First off, if you have audio with your video (that you want to replace with your high-quality audio recording), then step #1 is to nudge the Zoom audio track to line up the impulse of the clap with the corresponding impulse of the scratch audio from the video file. To do that, you need to change the Timecode Display Format to Audio Samples. Once you do ...
5
Disclaimer: You didn't specify what program you are working with, so I assume you are using the current version of Premiere Pro.
Assembly Workflow
Your workflow is a common one for beginners. Back when I gave Premiere Pro introductory courses, I noticed many students start out like this, basically doing the assembly, cutting and arrangement of the footage ...
5
Final Cut Pro X has a plugin called Pro Removal that can remove moving things from the scene on fixed camera shots.
Also there is a tutorial for After Effects that shows how remove objects from scene using the tracker.
Also you can clean frame by frame using Photoshop or similar if you have a good amount of time to spend or a crew to help you in the task.
5
This question gets asked quite frequently, and normally the answer is to pick one from this list. But since you very clearly defined what you are looking for in the editing software, I think I can give you a better recommendation.
Premiere Elements
Personally, I use Creative Cloud software, which means Premiere Pro for video editing and After Effects for ...
5
In the 'Deliver' panel, under the Advanced Settings, try enabling/ticking “Use render cached images”.
4
While it is true that 720p video only has about half the data of a 1080p feed, the other thing you have to realize is that when you push the system beyond it's limit, it may spend a lot of time trying to process frames that it doesn't finish in time. Depending on how the player is configured, it may give up and try to catch up rather than finish rendering ...
4
MoviePy looks less intimidating than other scripting languages. It may be easier to script your time tag cutting tool with it.
http://zulko.github.io/moviepy/
4
If you are really adventurous why not give Blender a go? It is a 3D animation and compositing/tracking application. It is completely free and open (FLOSS) as well as being totally system agnostic. Run on Windows 32bit or 64 bit, MacOS 32 or 64 bit and Linux 32 or 64bit.
The video editor is rather novel and a bit rudimentary but is supported by a large ...
4
It's referred to as a jump cut. I would guess that perhaps the Apple ads that used it might have made it popular again, but that's just a guess. The idea behind it is to visually show a change in direction of thought since typically it matches up with the start of another phrase. It jumps the viewer forward in time and makes them aware of a subtle change ...
4
What you like to accomplish is a zoom?
In that case you can just add keyframes on the position of the video within your canvas/composition.
Find the moment where you want to zoom.
Add keyframe on the scale / position
Add keyframe on end of the zoom
Set preferred value
Add keyframe one frame before zooming out
Add keyframe on that next frame.
Add keyframe at ...
4
Don't use the Ken burns effect. Animate the transform controls, setting keyframes for scale and x/y position. By default, the keyframes will ease in and ease out, giving you a Ken Burns like effect, but you'll be able to control it more precisely.
4
They call this the rolling shutter effect.
Also known as the jello or wobble effect and is caused by the side to side motion of cameras that have the CMOS sensor.
The rolling shutter effect can be caused by:
fast moving objects,
moving or panning the camera quickly, or
camera vibrations.
Why does this happen?
The CMOS sensor on the camera reads ...
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