Questions tagged [compression]

The use of identifying patterns in video to reduce the required data rate required to create a video stream.

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6
votes
1answer
2k views

Will Compression/Format of Audio Change when Uploaded to YouTube?

If I have a .wav audio file, put it in a video file, say a .wmv, as, if I'm not mistaken, that format basically just uses .wav for its audio, and upload said .wmv file to YouTube, will the compression ...
7
votes
4answers
173 views

Sources to learn more about Audio/Video compression, codecs, algorithms etc.

I was quite surprised when I learned the fact that the MP3 codec is extensively based on the Fourier Transform. I'd like to learn more about these topics in general. When I say more I mean the working ...
5
votes
2answers
18k views

Reduce render file size in After Effects

I am making a simple travel map, like the one in the Indiana Jones movies. I followed this tutorial: (German) When I want to save it as a video (render it), the ...
8
votes
3answers
8k views

YouTube Compression: Why?

There's a lot of advice on the internet on encoding settings to apply to your video before uploading to YouTube (https://support.google.com/youtube/answer/1722171?hl=en, ...
4
votes
2answers
81 views

Best format for audio track with a single/few images

What would be the best (e.g. most compact) format for a "video" that is actually an audio track with a single static image the whole time? (example) And if it was not one static image, but a slow ...
1
vote
1answer
197 views

Which measurements can I take using which programs to exploit the already low quality and save as much space as possible?

This is the best my actioncam can create. My goal is to take advantage of this low quality and save as much harddrive space as possible so visible quality remains. Which measurements can I take ...
6
votes
2answers
12k views

How to convert an MTS file without loosing quality?

I have shot some videos on a Panasonic v720 camcorder. The videos are huge. I used the internal feature of the camcorder to convert to MP4 and the quality was reduced very much. What is the best ...
4
votes
1answer
52 views

Video compression- how to prioritize one area over another?

I'm not sure if what I'm asking is possible, but here's the situation. I have a video I have made for distribution on the Internet (YouTube, Vimeo, etc.) The video clip is a composite of the ...
4
votes
1answer
359 views

How to compress videos for a website?

I want to start a website in which there are some videos. When I searched Google regarding this video website I came to know that for the proper working of the videos we should compress the videos. ...
4
votes
3answers
829 views

Is there a way to improve quality for videos with snow/confetti/LCD in background?

The effect I'm referring to: Essentially, the snow/confetti in the shot means lots of motion, hence a lot of the available bitrate is taken up by it, thereby ...
3
votes
2answers
827 views

Optimizing MPEG2 Encoder in Adobe Media Encoder

We're looking at using MPEG2 as an alternative to ProRes 422 for delivery & archiving. There are many options in there which are beyond my knowledge; I would like to understand them and maybe get ...
2
votes
1answer
1k views

Background color of MP4 rendering incorrectly in QuickTime

I am converting a .MOV file into .MP4, .OGV and .WEBM for web use. I have found that the background rendered by QuickTime and Safari is not white although the same MP4 has a white background when ...
1
vote
1answer
266 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 ...
1
vote
1answer
386 views

mov to mp4 conversion produces grainy results

I am using handbrake to compress 250mb of 3d animation stored in .mov. This is how the mov looks: The compressed version has some artifacts. Like it doesn't have enough shades of grey: How can I ...