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									effects suggest f_kaleidoscope - Video Editing				            </title>
            <link>https://cinelerra-gg.org/forum/help-video/effects-suggest-f_kaleidoscope/</link>
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                        <title>Answer to: effects suggest f_kaleidoscope</title>
                        <link>https://cinelerra-gg.org/forum/help-video/effects-suggest-f_kaleidoscope/#post-2257</link>
                        <pubDate>Sun, 04 Sep 2022 17:30:32 +0000</pubDate>
                        <description><![CDATA[@adam4567
I like it ! -- the second one is my favorite.]]></description>
                        <content:encoded><![CDATA[<p>@adam4567</p>
<p>I like it ! -- the second one is my favorite.</p>]]></content:encoded>
						                            <category domain="https://cinelerra-gg.org/forum/help-video/">Video Editing</category>                        <dc:creator>phylsmith2004</dc:creator>
                        <guid isPermaLink="true">https://cinelerra-gg.org/forum/help-video/effects-suggest-f_kaleidoscope/#post-2257</guid>
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				                    <item>
                        <title>effects suggest f_kaleidoscope</title>
                        <link>https://cinelerra-gg.org/forum/help-video/effects-suggest-f_kaleidoscope/#post-2256</link>
                        <pubDate>Sun, 04 Sep 2022 09:39:28 +0000</pubDate>
                        <description><![CDATA[If there was a call for suggested ffmpeg effects, then here&#039;s one I have been having fun with. How practical or desirable it may be to include among the Cinelerra effects, I don&#039;t know. It i...]]></description>
                        <content:encoded><![CDATA[<p>If there was a call for suggested <strong>ffmpeg effects</strong>, then here's one I have been having fun with. How practical or desirable it may be to include among the Cinelerra effects, I don't know. It is fast to run as an ffmpeg script from the command line. </p>
<pre contenteditable="false">ffmpeg -i $1 -i $1 -i $1 -i $1 -filter_complex "hflip; \
vflip; \
"hflip,vflip"; \
hstack=inputs=2; \
hstack=inputs=2; \
vstack=inputs=2" -s 1280x720 -map "" $2


ffmpeg -i $1 -i $1 -i $1 -i $1 -filter_complex "hflip; \
vflip; \
"hflip,vflip"; \
hstack=inputs=2; \
hstack=inputs=2; \
vstack=inputs=2" -s 1280x720 -map "" $2</pre>
<p>The top script flips mirrors and stacks an input video to form a 2 x 2 mirror type kaleidoscope. The second script flips and mirrors 2 x 2 but inside out. If this was to become an <strong>F_kaleidoscope</strong> effect, then there may be an option switch needed between those two inverse results. <br /><br />I've brute force scaled at the output, it would clearly be better to divide by 2 at the input/inputs. I've a similar pair of scripts to allow 4 different input videos to be thrown together. Just a suggestion, its very silly, I hope you find it of interest. </p>]]></content:encoded>
						                            <category domain="https://cinelerra-gg.org/forum/help-video/">Video Editing</category>                        <dc:creator>adam4567</dc:creator>
                        <guid isPermaLink="true">https://cinelerra-gg.org/forum/help-video/effects-suggest-f_kaleidoscope/#post-2256</guid>
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