Questions tagged [compression]
The use of identifying patterns in video to reduce the required data rate required to create a video stream.
30
questions with no upvoted or accepted answers
5
votes
1answer
888 views
Largest input image size when encoding a video?
I got a bunch of really large 16 bit videos, approaching 65535×65535 pixels in size. These are essentially high quality timelapse panoramas. I want to convert them to a 7680×4320 movie (8K UHD, 8 bit)....
3
votes
1answer
318 views
AVI Capture in VirtualDub: MP3 Compression
I would like to capture my old VHS tapes to my HDD. I already was successful installing the xvid codec which gives me an acceptable video compression.
But somehow I am not able to set audio ...
2
votes
0answers
48 views
Efficiently compressing a looping video with h264
I have a video that is initially 19 frames long and lasts for about 0.5 seconds, it's 432kB.
I've looped it over three minutes and the resulting file is quite large (200MB).
Using FFMPEG is there a ...
1
vote
0answers
22 views
Why has grayscale a higher bitrate than YUV with H.265/HEVC?
For compression purposes, I am re‐encoding a grayscale video to the H.265/HEVC codec. Although the input video is more or less perfectly grayscale in aspect, it is provided in the yuv420p pixel format....
1
vote
0answers
31 views
Hardware Acceleration Compression (ffmpeg H264 .mov files)
I'm looking for a (preferably hardware) solution for quickly compressing ffmpeg H264 .mov files.
The setup I have has several Edgertronic cameras that are controlled through an API (start, stop, ...
1
vote
0answers
40 views
Before I throw away these massive uncompressed VHS digitizations, what kind of post processing can I do to improve them?
An uncompressed digitized VHS tape is like 60 gigs. Obviously way too big. I can compress it down using H.265 and get basically the same quality. But before I do that, is there any production ...
1
vote
0answers
101 views
ffmpeg video compression : Compress captured video being before saving to file
Is there a way one can compress captured video input before saving to file? I have raspberry pi that I am using to record youtube videos. 1-2 min video takes over a Gb of space. I cant compress the ...
1
vote
1answer
48 views
mp4 to wmv AND file compression
I have a mp4 from a video created in iMovie 10.
The original output is about 1.5 GB.
I uploaded it to youtube to use their compression and re-downloaded.
I now have an mp4 at 236mb.
I need to ...
1
vote
0answers
23 views
Why does people seem transparent in this video
People seem transparent in that video. What does explain that?
I posted on the Physics community, believing that it was related to some optical effect. But I've been told that it may be related to ...
1
vote
0answers
8 views
Why does motion compensation need a decoder?
I know that motion compensation is the process of using the motion estimaton MV information and then compensating it to describe only the differences between reference frame and the motion estimation ...
1
vote
0answers
97 views
Optimizing HTML5 video for best quality
I have a 3 minute video I'd like to embed on a web page. The problem is that despite best efforts, the file size of the video ends up being over 30 mb. I would like the size to be near 10 mb. I have ...
1
vote
0answers
118 views
Best possible quality setting for screen recording (not games) and web presentation
Screen videos have text and simple geometric shapes, which need to
stay sharp, detailed and crispy. The color should also remain
untouched. With screen grabs, I want e.g. IBM blue to show as IBM blue
...
1
vote
0answers
183 views
If I limit the color spectrum of a video, will it compress to a smaller file size?
I know that in exporting images, if I use an indexed color format when I save (such as GIF or PNG with indexed color mode), I can dramatically reduce the file size of the resulting export. My ...
1
vote
0answers
3k views
FFMPEG Tiff images to losseless video (H265) lags, broken output
I have 226 sequenced images (TIFF, 6.2MB each) and i would like loseless save them like video by using H265.
Here is command which I used:
ffmpeg -f image2 -framerate 25 -i IMG_%03d.tif -vcodec ...
1
vote
1answer
474 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 ...
0
votes
0answers
5 views
24h screensaver - how to handle huge video
I'm tasked with creating a windows screensaver that display a 24h video.
The original 24h HD video is 180GB
As I see it there are 2 strategies
Caching
I could split the video into smaller parts (...
0
votes
1answer
13 views
ffmpeg compress video in fast motion in high quality
I would like to compress a video and in the same time to be in fast motion, and this must have as a result a high quality fast motion video.
I tried to run this ffmpeg command which compress video ...
0
votes
0answers
6 views
Reducing pixel dimensions and frame rate does not reduce video size (Adobe Media Encoder)
I have created a video using After Effects which is about three minutes long and has a size of 86MB after exporting as h264. This seems quite an appropriate size for a good quality video to me.
...
0
votes
0answers
7 views
Is there any AI upscale tool for videos?
I’m working on an amateur project, and for part of my project I’ll be using some old, really, really low-res film. I’ve used some free online tools (like deep-image.ai) to upscale low-res photos ...
0
votes
0answers
15 views
Poor Capture Quality with Camtasia
I build video tutorials. I need to capture video in raw high-quality format so I can hand it to the editor. But, when I record video in Camtasia 2019 or 2020 (new version), the editor complains that ...
0
votes
0answers
15 views
how to store and playback segments of video in different fps?
I am working on video compression techniques and was trying to segment the video into important and unimportant parts.
Unimportant parts are stored in 30 fps and important parts of the video are ...
0
votes
0answers
8 views
How to export 20fps footage
I am trying to export a video stiched together with 20fps footage, my quick solution was just to export at 60fps but that leaves me with huuuuge files. Any workaround? Premiere doesn't seem to let me ...
0
votes
0answers
11 views
Tipps on streamlining my recording and editing process
So i was having problems with editing videos and got some good tips here.
For more Context: Original question
and it got me thinking on maybe streamlining my process a bit, maybe i can get some ...
0
votes
0answers
278 views
Green frame in iMovie export
I exported a movie from iMovie from a theater play of about 1 hour. By chance, I found that one of the frames was completely green:
whereas the other frames are mostly black or dark.
The settings ...
0
votes
3answers
28 views
How to clean up old animated footage?
Recently I ripped a couple of old DVD's to preserve them.
The original rip has a resolution of 720*576 and runs with 5100kb/s on 25fps interlaced.
I tinkered around with Handbreak and (hopefully) ...
0
votes
1answer
90 views
h264 compression keeps same number of frames?
I'm trying to understand how h.264 compression works. So far I have clear what I, P, and B frames are and how are they used. But I'm unsure of is if after this process the number of original input ...
0
votes
1answer
158 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 ...
0
votes
1answer
386 views
Recompressing 1080p h264 collection to HEVC - Target Bitrate For Minimal Loss
My understanding is that HEVC (aka h265) can provide roughly the same video quality as h264 in roughly half the space, for 1080p+ footage. I have a large collection that I would like to re-encode to ...
0
votes
1answer
128 views
Compressing a large MP4 file that is on 2.30mins long
I have been sent a video that is only 2.30 mins long. But is a whopping 168mb, unfortunetely this has to be embedded into an app - so I need it as small as possible. I need to get the file size down ...
-1
votes
1answer
14 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 ...
