Questions tagged [video]

Video is the technology of electronically manipulating still images that represent motion.

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4 views

Why is ffmpeg producing a background?

I am a chemist and since a few weeks I am making short videos with ffmpeg by combining images, I am using the command below (for some reason without profile:v high, powerpoint crashes when I would ...
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3answers
141 views

How to convert ts to mp4

I have a lot of videos needed to convert from ts to mp4, how can I convert it without losing quality? I mean a lot like 30+ each week. I did a search already but none can do it fast enough, doing it ...
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2answers
685 views

Is it feasible to create a true multi-language video file with visual localization?

I'm of Russian descent, but I've been living in Germany for the better part of my life now, which means that I deal with both German and Russian media on a regular basis. Most video stuff I have will ...
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1answer
37 views

how to pipe:/// through a .sh or Python script, or use some sort of setting files with FFMPEG

First post, so be kind please :) So a quick bit of history. I am using tvheadend, and the inbuilt transcoder murders my CPU, and provides average quality output (it's powered by ffmpeg), if I pipe ...
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5 views

Is there any free software for converting SVG/CSS animations to video, for Windows, YouTube compatible, high quality, automatically runnable?

I'm coding animations in SVG animated with CSS, and want to show them on YouTube. So I need to go from the original animation which I display in a web browser, to a video file. I've looked into and ...
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7 views

how to animate muscle movement in the human body

I've been trying to achieve the following effect in the video linked below, I tried using a png and tracking motion along side the puppet tool but it ends up looking weird. I've checked for tutorials ...
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1answer
291 views

Old webcam recorded video not playing

I have this video (length 1-2 min) recorded on Dell webcam 3-4 years ago. It played smoothly at that time. Now when I play it, for first 40 seconds it plays well but after that video goes blank and ...
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1answer
18 views

Extract audio from a multichannel video file

I have a QT ProRes which has 8 audio tracks. L/R/C/Lfe/Ls/Rs/Ltotal/Rtotal What I need to do is extract the 5.1 (tracks 1-6) into separate individual wav files without recompression and the last 2 (...
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1answer
225 views

ffmpeg: How to avoid “start: 0.033333” when extraction audio from mp4

When extracting audio and video separately from a mp4 and recombining again ffmpeg -accurate_seek -ss 30 -t 10 -i input.mp4 -vn output-audio.mp4 ffmpeg -accurate_seek -ss 30 -t 10 -i input.mp4 -an ...
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3answers
2k views

Recreate basic AVCHD from MTS files

My dad has a Sony HXR-NX5E which writes its output to SDHC cards in AVCHD format. Wanting to back up his video and not understanding the AVCHD structure, I originally got him to copy the contents of ...
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1answer
20 views

How to add automatically a video ending?

Long story short, for internal trading videos updates i need to add a predone video cut to a lot of old videos. I need a way to not having to pass everyone one by one by premiere. Any software that ...
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1answer
5 views

Natron: how to resume a render that crashed

I'd like a way to restart a render when a render crashes in Natron, given that the output are written in separated files (using output out_%05d.png). I don't want to change the first frame in my ...
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1answer
250 views

Help with FFmpeg keyframe command

I just discover FFmpeg, and I was using it to find keyframes. I lost the command line due to the power outage. I'm searching for a command line that produce the following output. Can you help me with ...
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1answer
12 views

How do I trim text/video in smaller increments? (for Kinetic Type Video)

I want to trim a basic title element so it matches an audio file I have. I want to drag the start of the title element to a marker on the timeline. I can't do this because final cut keeps truncating ...
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1answer
80 views

poor quality video VHS camcorder: is there a fix?

I recently rescued an old Panasonic M40 VHS camcorder. All the electronics work absolutely fine. I bought a pack of VHS tapes and did a quick video test. The video quality is very bad with wobbly ...
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1answer
10 views

Why does moving objects in some videos flicker or distort horizontally

I am not asking the common question of horizontal dark stripes on some of the videos. I know this is a known topic and lots of resources are already available on the internet on this. But I am talking ...
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2answers
413 views

FFMPEG Video loop from images files

I am trying to make a video from a bundle of image files and then apply a an overlay on top of it.Another requirement is to make the video loop 3x. It is simply not working. The requirement is to ...
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1answer
22 views

Can I use historical films from Weimar/Nazi Germany for research? (Copyright UK law)

And does anyone know any good places I could find this stuff, its for a video collage?
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4answers
378 views

How to detect whether a video is shaky

I need to stabilize a video only when the video is shaky. I have successfully stabilized a video using FFmpeg, and I do not need to stabilize all the videos, I only need to stabilize the videos ...
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1answer
23 views

Premier Pro Audio Quality Poor and Muffled After Export

I’m currently exporting a video on Premier Pro using the default YouTube 1080 HD settings. Usually, my videos export with no problem, but with this video, my exported audio is extremely muffled, even ...
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1answer
21 views

“Cannot find a matching stream for unlabeled input pad 2 on filter Parsed_amerge_2” ffmpeg

The error I'm getting is in the title. I want to merge the two audio streams from a video into one (yes, I've checked if there is two and there is). This is the command I'm using: ffmpeg -i input.mp4 -...
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3answers
46 views

Can't see differences between videos?

I back up my data to pairs of external hard drives, and recently (in the process of transferring the contents to larger external hard drives) found that some of the data between them has diverged. ...
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28 views

Why does audio not work for this mp4 when played on IPad with headphones plugged?

I'm hosting this video : https://itype.techforge.com.au/assets/videos/repeated/WordRat.mp4. It seems to work fine unless you happen to be on an IPad and plug the headphones in. With the headphones ...
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10 views

What is the best way for a church to stream video of Sunday sermons? And related questions too [closed]

What is the best way for a church to stream video of Sunday sermons? We are using volounteers to do both video and audio tasks. Simplicity is important. We dont need 8kTV with fancy features like ...
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8 views

Trying to locate services that do video transformation

I'm looking for a service that allows me to do the following: programmatically concatenate several video files into one new video file overlay an audio file onto the video file overlay a watermark ...
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0answers
14 views

DJI RS2 Gimbal loses axis on hard pan

I noticed an issue with the gimbal DJI RS2. When the gimbal is in PF mode and when I do a hard pan left, the entire gimbal turns around and loses the axis (Please click here for video - Sorry for the ...
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1answer
32 views

ffmpeg mov_text subtitle too small when converting mkv to mp4

I want to remux a mkv file into mp4. I used the following command. ffmpeg -i "input.mkv" -c:v copy -c:a copy -map 0:0 -map 0:1 -map 0:2 -map 0:3 -c:s mov_text "output.mp4" Problem:...
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7 views

Illustrator “Release to Layers” but keep names? [duplicate]

When preparing the Illustrator files in order to work on it in After Effects, we need to put each layer separately But when you click on release to layer (sequence), the layer name changes to Layer 1, ...
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3answers
766 views

How do I remove night footage from 300 days of Time lapse video

I want to remove night footage from a Timelapse video of construction over 300 days. So I want to remove 300 nights from this video. How do I do it in an easier way? Is there a option to cut video at ...
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3answers
10k views

Corrupt MP4 [recording interrupted]

I was recording an MP4 file using PlaysTV, and my computer had a power fault half-way through the recording. I'm sure that the file contains valid data, it's just that no media player will recognize ...
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2answers
921 views

Injecting/embedding/adding/writing metadata to a .mp4 file so it's recognised as 360

I'm working on a library that injects/embeds/writes metadata into a .mp4 file to allow the video to be displayed correctly as a 360 video. The input file is a standard .mp4 file in the equirectangular ...
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2answers
442 views

how can I convert slow motion video into normal speed without losing fps or audio sample rate?

I want to download a slow-motion video playlist (with the frame rate of the videos being either 480 fps or 1000 fps.) and be able to speed up the videos at least 16x without losing the frame rate or ...
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1answer
32 views

Generating thumbnail from only the first megabytes of a video file

I want to create one thumbnail consisting of the first frame of a video for arbitrary video files. I do it like this: ffmpeg -i video.mkv -vf scale=w=300:h=300:force_original_aspect_ratio=decrease -...
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1answer
24 views

Why “mat2” show over 90 lines of metadata for video file

I bought a video and see a lot of meta data. What do these metadata mean (overview summary)? Is there something like watermarking to track who the owner is? mat2 -s video.mp4 [+] Metadata for video....
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1answer
28 views

ffmpeg: Placing an overlay over multiple images

I am trying to overlay a png image onto a series of images (a few hundred images), I will later take this series of images with the overlay and construct a movie out of the series of images. I don't ...
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1answer
153 views

Too many arguments in ffmpeg, concat, filter_complex command, what I am doing wrong?

I am using the following ffmpeg command with filter_complex: ffmpeg -i GOPR0013.MP4 -i GOPR0013.MP4 -filter_complex "[0:v:0]fps=32,scale=1920:1080[v1],[v1]vflip[vF1],[vF1]hflip[clip1], [clip1] [1:v:0]...
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1answer
450 views

How to make ffmpeg to generate NUMBER_OF_BYTES tag for every stream in file output?

Can ffmpeg count size of stream in bytes? I want to write NUMBER_OF_BYTES tag for every stream in file output on the fly. Like MKVToolNix does. Input #0, matroska,webm, from 'm:\S01E18.mkv': ...
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0answers
13 views

What would happen if I didn't select this option?

In this video editing tutorial, at 01:57 author said after cropping desired region, I need to select "Set width according to parent's aspect ratio" option. What would happen if I click apply ...
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1answer
2k views

Errors in converting mp4 to ts with FFmpeg

I was trying to convert a caption-embedded .mp4 file into a .ts file. Only command found after some search was this which uses FFmpeg: ffmpeg -i 1559066401592889640.mp4 -c copy -bsf h264_mp4toannexb ...
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3answers
70 views

How to make a video presentation with a video of the slideshow and a video of me speaking in the corner?

I am a teacher and I am trying to sync my slideshow presentation to a video of me speaking about the slideshow presentation. I'm trying to make it so that the presentation takes up most of the screen, ...
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2answers
25 views

How do I import minidv video to windows?

I've connected my camcorder to the pc via firewall,driver was also installed but when I plug in and out nothing happen. (Except the sound). Do i need any software?
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1answer
15 views

Video MP4 file stops and starts

I'm new here, and a pretty new video editor, but I'm having a few problems. One of my clients sent me some plain mp4 clips of some action video. Both he and I when we watch them remark one thing. The ...
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1answer
16 views

Loop images until the audio ends

I have an audio file 2 hours long and 30 still images related to the audio. I would like to display each image consecutively for about 45 seconds while the audio is playing in a repeating fashion. ...
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1answer
32 views

Convert interlaced(?) video to progressive

I have a video with the following details: Format : MPEG-TS File size : 6.49 GiB Duration : 1 h 35 min Overall bit rate mode : Variable ...
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1answer
21 views

How to make python ignore square bracket? [closed]

I have a code it work with fine with with file name does not contain square bracket [] an example: 10245,13445.avi def insert_types(out, dir): for root, dirs, files in walk(dir): for f in os....
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1answer
31 views

Walking Forward in Google Tour Creator

To start with, I am an amateur when it comes to computational photography. I am trying to use Google's Tour Creator to create a virtual tour of my store. It works perfectly when I am standing at a ...
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2answers
762 views

How do you make orbiting text in Davinci Resolve 15?

Spinning globe with orbiting texts Does someone know how to make the orbiting text shown at the bottom right corner of the linked clip or where to such a tutorial online by using Davinci Resolve?
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0answers
14 views

Add external mic using Sony “A/V R” plug

I have a Sony HDR-CX100 video camera that I would like to connect an external mic to (3.5mm plug), but the camera has no dedicated mic input. However, it as an "A/V R" plug: Before you say &...
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5answers
25k views

Fastest way to add a timestamp to a video

Is there any script or application that would add a timestamp to a video (avi or mov)? Does for example mencoder support this function ? I'm using it to join avi files together. I would be happy for ...
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2answers
80 views

What kind of lighting setup is this?

I'm looking to understand how this person did their lighting setups, what kind of filters they used, and angle of view (35mm equivalent focal length). From what I can see, there is a ring light and ...

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