user12052: How is ffmpeg used with a video filter circa 2017 to adjust gamma/contrast, brightness and saturation?
Stack Exchange resources that are a few years old point to the filter mp=eq2=, but it seems to be deprecated1 and replaced with just eq=. The link does not reveal a good understanding of the setting ranges, however.
How is eq= (or equivalent filters) used? E.g., what is the format and appropriate settings/ranges?
For my personal usage, I'd like to keep gamma where it is, while increasing brightness and saturation a fair bit, for a dark video.

1Throws error message: No such filter: 'mp'

user29723: I'd also try curves:
ffmpeg -i input.vid -vf "curves=all='0/0 0.5/1 1/1'" -codec:a copy -codec:v libx264 -y output.vid

The 0.5/1 maps mid-range brightness (0.5) to full bright (1)

user24908: Gamma correction is likely to be a better choice than brightness, to stretch the histogram to the right rather than push it over:
# tinker with numbers
ffplay -vf eq=gamma=1.5:saturation=1.3 original.vid 

# render
ffmpeg -i original.vid -vf eq=gamma=1.5:saturation=1.3 \
    -c:a copy  outfile.vid


user12052: These settings helped me to lighten up a dark video using the filter eq, with some added saturation.
Syntax:

filtername=option1=value1:option2=value2:option3=value3... These can be in any order.

Filter ranges and all options:
https://ffmpeg.org/ffmpeg-filters.html#eq
Preview:
ffplay -vf eq=brightness=0.06:saturation=2 INPUT.MOV
Render:
ffmpeg -i INPUT.MOV -vf eq=brightness=0.06:saturation=2 -c:a copy OUTPUT.MOV 

Alternative filters: curves and pp.

12052: <p>How is ffmpeg used with a video filter circa 2017 to adjust gamma/contrast, brightness and saturation?</p>

<p>Stack Exchange resources that are a few years old point to the filter <code>mp=eq2=</code>, but it seems to be <a href="https://wjwoodrow.wordpress.com/2015/07/12/more-ffmpeg-hell/" rel="noreferrer">deprecated<sup>1</sup> and replaced</a> with just <code>eq=</code>. The link does not reveal a good understanding of the setting ranges, however.</p>

<p>How is <code>eq=</code> (or equivalent filters) used? E.g., what is the format and appropriate settings/ranges?</p>

<p>For my personal usage, I'd like to keep gamma where it is, while increasing brightness and saturation a fair bit, for a dark video.</p>

<hr>

<p><sub><sup>1</sup>Throws error message: <code>No such filter: 'mp'</code></sub></p>
 29723: <p>I'd also try <a href="https://ffmpeg.org/ffmpeg-filters.html#curves-1" rel="noreferrer">curves</a>:</p>

<pre><code>ffmpeg -i input.vid -vf "curves=all='0/0 0.5/1 1/1'" -codec:a copy -codec:v libx264 -y output.vid
</code></pre>

<p>The <code>0.5/1</code> maps mid-range brightness (0.5) to full bright (1)</p>
 24908: <p>Gamma correction is likely to be a better choice than brightness, to stretch the histogram to the right rather than push it over:</p>

<pre><code># tinker with numbers
ffplay -vf eq=gamma=1.5:saturation=1.3 original.vid 

# render
ffmpeg -i original.vid -vf eq=gamma=1.5:saturation=1.3 \
    -c:a copy  outfile.vid
</code></pre>
 12052: <p>These settings helped me to lighten up a dark video using the filter <code>eq</code>, with some added saturation.</p>
<h3>Syntax:</h3>
<blockquote>
<p><code>filtername=option1=value1:option2=value2:option3=value3...</code> These can be in any order.</p>
</blockquote>
<h3>Filter ranges and all options:</h3>
<p><a href="https://ffmpeg.org/ffmpeg-filters.html#eq" rel="noreferrer">https://ffmpeg.org/ffmpeg-filters.html#eq</a></p>
<h3>Preview:</h3>
<p><code>ffplay -vf eq=brightness=0.06:saturation=2 INPUT.MOV</code></p>
<h3>Render:</h3>
<p><code>ffmpeg -i INPUT.MOV -vf eq=brightness=0.06:saturation=2 -c:a copy OUTPUT.MOV </code></p>
<hr />
<p><strong>Alternative filters</strong>: <a href="https://video.stackexchange.com/q/14603/1871"><code>curves</code> and <code>pp</code></a>.</p>
