Questions tagged [video]

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

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2answers
23 views

Optimizing short Videos (~10 sec.) in Size for embedding in website & app

I need to embed short (~10 sec.) videos on my website. I currently use .mp4 files, each one is around 10 MB large. Is there a way I can reduce the size of these videos? Whats the best format to use? ...
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1answer
56 views

Why to use lower case “1080p” and “1080i” but not capital “1080P” and “1080I”?

I'm curious about why we mostly use and see "1080p" and "1080i" over "1080P" and "1080I"? (and the same on 720/480/360) Does anybody know any professional reason of that? I've seen some capital ones, ...
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1answer
11 views

What is a cost effective app to resize, crop & save a MOV file to a reduced size?

I am planning to buy an HD animation which is over 500Meg in size. I need to resize, crop and reduce the file size to about 10Meg. I prefer not to deal with Adobe Media Encoder or something like ...
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1answer
19 views

Appear and disappear effect with camera movement

I was watching a Lil Skies music video produced by Cole Bennett and noticed an effect. It had Lil Skies singing in front of a car, and he would vanish and the car would also vanish and reappear at ...
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1answer
43 views

Editing/Changing Cluster Timecode Element in mkv files (Amazon Kinesis Video)

I've tried researching this very thoroughly, but have not come across a similar issue. To sum up my problem first, I'm sending 3 second .mkv clips into Amazon Kinesis Video. Then I pull back random ...
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1answer
14 views

How can I render a 720x480 clip to playback from YouTube in 1080p?

I'm working on Sony Vegas Pro 14 and I'm editing AMV. The anime clip's resolution that I'm editing is 720x480 - I saw the same clip edited on YouTube and on the settings it was showing that I can ...
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3answers
45 views

Sony FS5 border artifacts

I've got a problem with trying to key the green color with some footage I shot with a Sony FS5. The main object in the frame has some kind of white/light grey border around it which makes it very hard ...
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1answer
21 views

OS X: What software for cutting videos?

On Windows, I've used Solveig Multimedia Video Splitter and it will cut the video on exactly the time range listed (example: 00:11:34.004 to 00:34:45.005) I've tried a freeware app LosslessCut (which ...
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1answer
22 views

ffmpeg: keyframe extraction with pts

I have an ffmpeg newbie question, I am extracting keyframes from streams using this command: ffmpeg -skip_frame nokey -i {0} -vsync 0 -r 30 -f image2 keyframe-%09d.jpeg However, instead of an auto-...
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33 views

How do I do this effect on Premire Pro? What is it called?

Here's a gif of the effect. How do I recreate it? What is it called? https://imgur.com/nPV1C6h
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1answer
18 views

How to add an image from the video to the beginning of composition? (Just an image, not a clip)

I have a composition which is a union of 2 composition, and I want to add a snapshot from the composition to the beginning of it - is there any shortcut for it? I tried searching for it Google but ...
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1answer
15 views

How to distribute multiple clips on the timeline, by Date and the time of the first one?

I have an existing project in Adobe Premiere 2017 and I would like to import multiple clips in it. I already have the primary camera in sync with the Audio, and I would like to bring the secondary ...
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12 views

FFmpeg HLS video download progress stops after some time - but still downloads data

FFmpeg starts off downloading the HLS video off the m3u8 normally, but after exactly 24 seconds it just stops seeking forward, and instead gradually raises bitrate while still downloading data. Full ...
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1answer
32 views

FFmpeg : Desktop Recording for YouTube

I was reading YouTube Help Recommended upload encoding settings page, and I found this command from a site Youtube recommended encoding settings for FFmpeg. ffmpeg -f gdigrab -framerate 60 -i desktop ...
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39 views

Syncing audios of two same videos of different framerates

I have two video files: High quality video / English voiceover Lower quality video / My language voiceover These 2 files contains same video, but has different times (one is usually 5% slower or ...
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2answers
36 views

Is using codecs matter if Facebook re-encode all the uploaded videos?

I usually encode with libx265 and libfdk_aac to get good quality and small file size for posting in Facebook. I use ffmpeg as follows. ffmpeg -i input.mp4 -vf -c:v libx265 -c:a libfdk_aac output.mp4 ...
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1answer
30 views

avidemux shows better preview than vlc player

I shoot a video in nikon D3400 and tried to play in vlc and native player of ubuntu. But avidemux preview is much greater than any of these two. Any way to get the quality of that preview for my video....
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7 views

How to set up Red5 server for streaming iOS app to other mobile phones and web browsers?

I would like to set up a Red5 server to broadcast from an iOS app to other mobile phones and web browser. I am new to streaming. What do I need in addition to the basic Red5 release I downloaded from ...
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1answer
29 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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0answers
60 views

FFmpeg 2017 vs 2019 decoding performance improvement

I was trying to do some basic profiling on ffmpeg, following my previous question here. I have a relatively high-bitrate .ts file (17mbps), and I have two versions of ffmpeg (2017.3 and 2019.4), and ...
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1answer
28 views

FFmpeg run multiple filters in parallel from C API

I successfully applied a FFmpeg filter from C API (my previous question here). I see the filters are running sequentially. Now the question is, how can I run multiple filters in parallel? If run ...
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9 views

How would one add a lens flare effect to clean footage? (Picture attached)

I have some footage of traffic, varying in range from close-up to distant and would like to add what I think is a lens flare effect to make it look like the picture attached. The online tutorials I ...
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1answer
53 views

Fixing screen flicker / screen tearing

I had some capture issue in OBS, where during certain parts of my screen capture some windows flicker. Here's a sample of the affected footage: I think this should ...
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1answer
23 views

After Effects - Trying to Export Video with RGB Alpha (I get a black background in the export)

In After Effects I'm trying to Export Video with RGB Alpha (I get a black background in the export)please see notes below: Here's my setup (On canvas transparency is togggled on)
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11 views

cropping video without fully reading it

Say, I have a large video file on Amazon S3 and want to get all frames from any timestamp_1 to timestamp_2 without fully downloading the video file. Is there way to preprocess the video file and ...
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1answer
44 views

How to prevent frame smoothing (i.e. get really sharp frame images) when making a video with ffmpeg?

I have been digging around here and on the ffmpeg site trying to find some commands to use to generate a movie from a set of images. The command I tried that gives me a video I can watch on my MacBook ...
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1answer
34 views

Need overlay the image on video by taking the array of positions

I need to overlay the image on video by scrolling the image on video . I want to generate the video with the image in scrolling positions
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1answer
48 views

What are the most mergeable codecs? What is the best codecs for intermediate videos?

I want to compose many videos from frames and mp3 files then join them together using FFMPEG. [frames+mp3] -> [Intermediate videos] -> [Joined intermediate videos] Using mp4 with aac ...
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0answers
8 views

my layers bar is gone

I was changing the size of my panels, when suddenly the entire panel at the bottom, where I can edit the layers, dissapered the other layers expanded. Nobody seems to have an answer for this & ...
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1answer
17 views

Is it possible to customise Krita’s FFMPEG render?

As Windows 10's native media players still don't support the YUV444p pixel format, which seems to be FFMPEG's default format, is it possible for a Krita user to easily (or relatively easily) ...
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8 views

Black video generated using movie maker

I used Windows Movie Maker to combine a video and audio for a school project. It works fine in Movie Maker, but when I try to save it in .wmv or .mp4 using the Save Movie button, the new .wmv or .mp4 ...
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21 views

Will faster encoding affect the quality in the end? (h.264)

If I speed up the encoding in blender to real-time for quicker encoding, will the actual quality of the video go down? Or will the file just be bigger? Just trying to make videos for my YouTube
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19 views

Uploaded video from IOS and Android devices can't be merged

When I try to concatenate one video from IOS and Another from Android user, the output video doesn't work. I am using this command: ffmpeg -f concat -safe 0 -i mylist.txt -c copy output
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31 views

Netflix preview video production

Netflix auto-plays a 20s, 30s video preview in the background if a video is selected or we hover the mouse pointer on them. I was trying to play with them, but couldn't understand how this preview "...
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1answer
22 views

Compile FFmpeg example code

I was trying to compile an FFmpeg example code HERE that illustrates how to use filters using it's C APIs. I compiled the code (throuh a universal make). As the usage suggests, I'm doing this: ./...
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1answer
31 views

Sony Vegas Pro 12 - 4/3 video wrongly considered as 16/9

I am digitalizing Super 8 film with a dedicated Somikon scanner. It outputs H264 - MPEG-4 AVC films in 4/3 (1440x1080). When I open these films directly with VLC, there are displayed in 4/3, which is ...
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2answers
35 views

Defined Technical Specs for 'Broadcast Quality'

Does anyone know if there are clear technical specs a digital file can be assessed against to confirm a valid 'broadcast quality' file? EG: Video = certain bitrate Audio = certain bitrate. ...
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1answer
130 views

Export Frames of 10 BPC Video File with ffmpeg

I have several hundred 1080p 59.94fps 10-bit-per-channel (bpc) AVC-Intra Class 100 MXF encoded video files. I would like to extract the frames of this video file and export them to disk in a 16-bit ...
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1answer
21 views

How can I change/reduce the bitrate of AVI files using Adobe Premiere Pro CC or other tools?

I'm using Eprime and Experiment Builder which requires files in AVI format (AVI-XVid). The files are quite small already (various 2 second clips under 1mb), but are still too large which crash the ...
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1answer
18 views

Formula / Calculate how much to slow video down to match audio?

scenario: I have video matched with audio (song). I slow the audio (song) down (eg from 120 bpm to 115bpm ie, I know exactly how much slower the new audio is than the original video) How do I ...
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1answer
18 views

Why would an ENG camera need 422 Chroma?

I can't believe it! 3CCD camcorders without the rolling shutter inferiority of the CMOS ones still exist and their sensors are even bigger! But why does that particular camera have 422 chroma? How a ...
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6 views

Software Just for Making Subclips

What’s the best piece of software to use just for making sub-clips from my video files? I usually do this is FCPX, but I’m looking for a way that doesn’t require importing, transcoding, etc.
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15 views

Sprite Zoom Effect doesn't affect objects

I'm currently working on a video, where I'm trying to do a zoom and pan effect over a series of videos set in a single frame. However when I convert all the videos and objects into a sprite so that I ...
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0answers
24 views

Mjpeg in video containers use case

From time to time i'm converting mkv to mp4 using ffmpeg in order to save disk space. Currently i noticed that in some files multiple mjpeg streams where also included. Some of them were named cover....
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18 views

More video streams in a container

Many formats (containers) have an ability to host more video streams - e. g. MP4. Is there a practical use of this advantage?
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1answer
23 views

Recording a two speaker event with large audience

We are doing regular events with two speakers on the floor who have their own presentations in parallel. The event is a live hacking presentation, one speaker is the moderator and victim, the other ...
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0answers
27 views

How to use record video with ffmpeg

can someone tell me how I can record a video + audio and can I specify the fps and the resolution of the output file ? I'm very new to ffmpeg so i don't know much. Thanks.
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1answer
28 views

How to put a hole in a wall (VFX)

This is a really basic VFX question. I just downloaded Blackmagic DaVinci Resolve (with fusion) and I was interested in trying out VFX. I thought it would be a cool idea to try to put a hole in the ...
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2answers
63 views

FFMPEG single input file, crop to multiple streams, then overlay back into one output file?

I'm currently using a couple commands to 1- output two files with cropped regions, and 2- overlay the 2 files back into a single file. I would like to be able to merge this all into out command and ...
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1answer
26 views

Closed Captions missing when converting from mp4 to ts

This is a follow-up question from my previous question HERE. I'm trying to convert a caption-embedded .mp4 video into a .ts file, simply changing the container format. But once I convert the video, ...