江苏知识产权视窗--江苏频道--人民网
Tagged with video-quality file-formats
12 questions
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How is PSNR calculated when the reference file is RGB and the encoded file is YUV?
If I use this command to get PSNR statistics for a file:
ffmpeg -i encoded.mp4 -i reference.nut -lavfi "[0:v]setpts=N[out0];[1:v]setpts=N[out1];[out0][out1]psnr=stats_file=psnr_logfile.txt" -...
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Advice choosing an archival format; prioritize pixel format or PSNR?
I produce 3D animations and I keep an archive of the final rendered animation (lossless 16 bpc RGB tif sequences) in case I need to re-upload it somewhere else in the future. It is much faster to just ...
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2
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159
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What is the difference between lossless and lossy formats?
What exactly are the differences between lossless and lossy codecs? And is one better format better than the other or is it mostly relative?
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Does YouTube accept AviSynth .avs scripts for uploading?
Without reencoding videos first? Is it possible to browse for .avs file and upload it, provided AviSynth is properly installed locally?
- 101
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3
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900
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What is the video equivalent of vector graphics?
Images and videos have their own quality standards and protocols. There are either raster image file formats (.gif, .jpg) or vector graphics images (.svg, .pdf). No matter how much you zoom in on ...
- 223
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57
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Decrease video size post-editing
I am using a video editing software to edit my videos for YouTube. The scenario is as below:
Input file size: 80mb.
Input type: webm.
My expectation after editing :
Video size: around 100mb.
(Any ...
- 113
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979
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How can a GIF made from a vid be larger than the vid itself?
iPhone 6S Plus
Tumblr app GIF creation feature used for taking vid and making GIF
9 seconds of video taken =949kB
3 second portion used for GIF =1.3MB
How?
my assumption is that app wouldn't use low ...
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166
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How to drastically reduce size of very simple video?
I've got a series of videos that I'm looking to drastically reduce in size. The video content is very simple: text animating on white background with a voice track on top. The text is mostly just ...
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2
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3k
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I have a TS file. How do I render it?
(I decided to post this here because it doesn't fit very well into the Gaming category, but it is a gaming question.)
I had the idea to try streaming video to Twitch one on computer and to record it ...
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How can I change the movie format from .MOV to .AVI in canon 650D
I have Canon 650 D which I use for Video Shoots mostly,my question is:
How Can I change the video format inside camera setting? is there any possibility to do that ?
the reason because my Video ...
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2k
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What codecs/formats are appropriate for full motion video recording for youtube?
I'm recording video game footage via lossless methods, after which I need to compress them and upload them to youtube. I'm not sure which format and/or codecs are best for this. I've been ...
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From Avid Media Composer to DVD?
I have a 1920x1080i project (a 50 minute film) in Avid Media Composer (version 3).
How can I make a high-quality DVD from my project?
Specifically:
Can I export straight from Avid to a DVD format ...
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