<p>There are a number of comparison algorithms available beginning with <a href="https://tools.ietf.org/id/draft-ietf-netvc-testing-06.html" rel="nofollow noreferrer">PSNR</a> through <a href="https://www.ssimwave.com/technology/" rel="nofollow noreferrer">SSIM/SSIMPLUS</a> to <a href="https://medium.com/netflix-techblog/toward-a-practical-perceptual-video-quality-metric-653f208b9652" rel="nofollow noreferrer">VMAF</a>. VMAF is implemented as an ffmpeg <a href="https://ffmpeg.org/ffmpeg-filters.html#libvmaf" rel="nofollow noreferrer">filter</a>.</p>

CC BY-SA 4.0
2019-09-30T06:26:24.267Z
Thanks Michael, kindly can you please also suggest a free tool that can help in the process. Thank you
user75464
CC BY-SA 4.0
2019-09-30T17:50:41.503Z
@user75464, what do you mean "help in the process?" I'd already suggested ffmpeg as it is able to run the VMAF algorithm. Are you looking to do something else?
Michael Liebman
CC BY-SA 4.0
2019-09-29T23:20:23.457Z
2019-09-29T23:20:23.457Z
Michael Liebman
<p>I need to measure streaming video from various different codecs and be able to tell which one is better.</p>

<p>What will be the best metrics to look for? </p>

<p>Is there a free tool that can help with this. </p>

<video><video-quality><streaming><codec><performance>
Video Quality Measurement test tool
user75464
# Video Quality Measurement test tool

(Asked by: username_0 on 2019-09-29)

I need to measure streaming video from various different codecs and be able to tell which one is better.

What will be the best metrics to look for?

Is there a free tool that can help with this.

**Tags:** video, video-quality, streaming, codec, performance


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## 1 answers

### Answer by username_1 on 2019-09-29. Score: 2 | Accepted answer

There are a number of comparison algorithms available beginning with [PSNR](https://tools.ietf.org/id/draft-ietf-netvc-testing-06.html) through [SSIM/SSIMPLUS](https://www.ssimwave.com/technology/) to [VMAF](https://medium.com/netflix-techblog/toward-a-practical-perceptual-video-quality-metric-653f208b9652). VMAF is implemented as an ffmpeg [filter](https://ffmpeg.org/ffmpeg-filters.html#libvmaf).

> **Comments:**
> **username_0**: Thanks Michael, kindly can you please also suggest a free tool that can help in the process. Thank you  
> **username_1**: @username_0, what do you mean "help in the process?" I'd already suggested ffmpeg as it is able to run the VMAF algorithm. Are you looking to do something else?  

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