New answers tagged

1

If I've understood you correctly, your video appears upright when viewed in portrait orientation and rotated in landscape. This suggests the image is stored in a landscape matrix but with no rotation tag set. If so, there are two things you can try using ffmpeg, a free command line tool. ffmpeg -i input.mp4 -c copy -metadata:s:v rotate=90 output.mp4 If ...


2

You could do it with After Effects and scripting. After Effects has a javascript-based API called extendscript that allows you to programatically create compositions - which can be as complex as you like, using pre-shot and/or generated footage, and effects. Extendscript means that AE can be run from the command lineā€“on a server for instance. You can ...


0

End up using filters as this answer guides >> http://video.stackexchange.com/a/15479/10894 ffmpeg.StartInfo.Arguments = "/c ffmpeg.exe -i C:\\Users\\mtst\\Desktop\\Clips\\h\\a1.mp4 -i C:\\Users\\mtst\\Desktop\\Clips\\h\\a2.mp4 -i C:\\Users\\mtst\\Desktop\\Clips\\h\\a3.mp4 -filter_complex \"[0:v]setpts=PTS-STARTPTS[v0]; [0:a]asetpts=PTS-STARTPTS[a0]; ...


0

Yes, I too think you need to refine your question. What platform are you steaming to? YouTube and Facebook Live are free and popular. Wirecast software can push to those endpoints with the sleekness of a Mac OS interface. In terms of hardware needed to recognize/encode HD feeds (e.g. HDMI or SDI) you need something as simple as a Black Magic mini recorder ...


2

Udacity has answered your question here http://blog.udacity.com/2014/09/udacity-videos-transparent-hand.html


3

You can use ffmpeg, a free command-line tool, to do this: Without letterboxing, NTSC wide pixel-aspect ffmpeg -i input.mp4 -vf "scale=720x480,setdar=16/9" -r 30000/1001 -c:v libx264 -crf 20 -c:a aac -movflags +faststart output.mp4 With letterboxing, NTSC 4:3 pixel-aspect ffmpeg -i input.mp4 -vf "pad=1920:1440:0:180,scale=720x480,setdar=4/3" -r ...


2

Specifying text in terms of pixel size is the most independent way of specifying size. Where you know the vertical resolution (like 720 lines or 1080 lines) then specifying pixels is exactly like saying "a fraction of the total frame". And in practical terms, 12 pixels is pretty much the minimum recognizable height for common western characters, especially ...


3

I use Nikon SLRs among a suite of other video cameras for professional corporate videography. The latest full-frame Nikons have proven to be good solutions for a higher-end look. As with all SLRs, they are far from the convenience of a typical, all-in-one ENG type camera and as with all SLRs their video capture quality is lacking. My solution if the Nikon is ...


0

Just wanted to mention Davinci's hardware requirements. Of course you can't neglect hardware when editing video, but Davinci is quite voracious on that account - not comparable, for example, to Lightworks or Sony Vegas. I really wanted to try it, but gave up because the hw upgrade needed was huge.


1

Hitfilm has a free express version and a paid version. It's a video editor and a compositor.


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 ...


3

Focus is focus is focus, whether for still or video. But the story does not end there. Focal length, aperture, sensor size, circle of confusion, etc., all play a role in determining whether you perceive something to be in focus or not. Here's a link to the math. The long and short of it is that quite often a camera that shoots both stills and video will ...


1

Getting good, bright lights that can evenly illuminate a green screen is half the battle. The other half is using a camera that will give you a clean key by not blending together too many pixels in its macroblocks. Many low-end camcorders use 4:2:0 chroma sampling, which means the border between your key and your subject is going to be at least two pixels ...


0

If your cameras have a LANC port, you can build yourself a LANC controller using arduinos: http://controlyourcamera.blogspot.de/2011/02/arduino-controlled-video-recording-over.html?m=1 Or alternatively get a cheap lanc controller. http://pages.ebay.com/link/?nav=item.view&id=281983277383&alt=web Depending on the camera you are going to ...


0

In addition to SoloShot, another product to consider may be TecNec ITP-1 In The Picture - Robotic Camera Panhead Ref: http://www.bhphotovideo.com/c/product/490975-REG/TecNec_ITP_1_ITP_1_In_The_Picture.html


1

High-end sports productions have cameras that can pan, tilt, and zoom their way to tracking a golf ball when driven 300+ yards off a tee. Such systems are well beyond the budgets of typical user groups. A system called SoloShot costs less than $1000, and might have the spatial resolution needed for your application. Recording in 4K gives you a 2:1 ...


1

Lightworks (as mentioned previous) but also newcomer to the game is BlackMagic Davinci Resolve 12 which can be both Free and Paid (if you want all the PRO Pro Features)


1

Since you said you use Blender for animation, why not just use that? Feature-wise, it's video editor can stand on it's own. It's a nightmare in usability (in my opinion, I believe that's also the general consensus), but if you're used to the program anyway ... Free software There are a couple of free programs available (a list, another list), most of which ...


0

From my experience there are some parameters you need to check for each of the sites mentioned here already: What is their licensing model: usually the licensing depends on the distribution channel you use, i.e. "unlimited worldwide TV distribution" usually being the most expensive. How does their "curatorial" skills meet your quality standards. I wouldnt ...


1

Try this one...everything is free (with attribution.) http://soundimage.org/


1

You can easily add Garageband audio into iMovie. The newer versions have a button that will import songs directly into iMovie.


-1

I think you can probably get any microphone that can go into an audio slot.


0

In the end, I found out that you can buy a dongle (in my case an INOGENI 4K USB) that will connect the camera to the computer via USB (amazingly, USB 3 is fast enough) or, in the case of BlackMagic Mini Recorder (which does 1080p only), thunderbolt. The next challenge is, of course, to encode 4K fast enough on a laptop.


1

Traffic cameras and security cameras shoot through a dark glass, so you could use something like that. I'm sure you've seen those black domes in stores - it's called a Pan/Tilt/Zoom (PTZ) dome. You might look in the area of security camera accessories.


3

What that message likely indicates is that the MP4 produced by Filmora does not have its MOOV box at the beginning of the file. The MOOV box has metadata about the audio and video streams contained in the MP4. Why this matters is that Youtube speeds up processing by breaking the uploaded video into segments, processing those segments in parallel, and then ...


0

I would try two solutions, obviously on backups of the files, not the originals. First there is the 'untrunc' tool which tries to copy over additional information from a working file into a broken file: https://github.com/ponchio/untrunc Then there is AtomicParsley which allows you to view file information on Mov / mp4 files on a very detailed level. ...


0

I am not entirely sure how YouTube determines you are using "wrong" settings but as long as your video doesn't take a horrendous amount of time to upload and it appears to be fine on YouTube, I wouldnt worry about that message. Your settings look ok to my eye. The only thing that is off, is that this wondershare software seems to ignore your bitrate setting ...



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