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FFmpeg: Difference between revisions
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===Resizing/Scaling=== | ===Filters=== | ||
====Resizing/Scaling==== | |||
[https://trac.ffmpeg.org/wiki/Scaling FFMpeg Scaling]<br> | [https://trac.ffmpeg.org/wiki/Scaling FFMpeg Scaling]<br> | ||
[https://ffmpeg.org/ffmpeg-filters.html#scale scale filter] | [https://ffmpeg.org/ffmpeg-filters.html#scale scale filter] | ||
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}} | }} | ||
===Rotation=== | ====Rotation==== | ||
[https://ffmpeg.org/ffmpeg-filters.html#transpose transpose filter] | [https://ffmpeg.org/ffmpeg-filters.html#transpose transpose filter] | ||
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* 3 – Rotate by 90 degrees clockwise and flip vertically. | * 3 – Rotate by 90 degrees clockwise and flip vertically. | ||
===360 Video=== | ====360 Video==== | ||
See [https://ffmpeg.org/ffmpeg-filters.html#v360 v360 filter] | See [https://ffmpeg.org/ffmpeg-filters.html#v360 v360 filter] | ||
====Converting EAC to equirectangular==== | =====Converting EAC to equirectangular===== | ||
Youtube sometimes uses an EAC format. You can convert this to the traditional equirectangular format as follows: | Youtube sometimes uses an EAC format. You can convert this to the traditional equirectangular format as follows: | ||
<pre> | <pre> | ||
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</pre> | </pre> | ||
====Converting to rectilinear==== | =====Converting to rectilinear===== | ||
<pre> | <pre> | ||
ffmpeg -i input.mp4 -vf "v360=e:rectilinear:h_fov=90:v_fov=90" output.mp4 | ffmpeg -i input.mp4 -vf "v360=e:rectilinear:h_fov=90:v_fov=90" output.mp4 | ||
</pre> | </pre> | ||
====Metadata==== | =====Metadata===== | ||
To add 360 video metadata, you should use [https://github.com/google/spatial-media Google's spatial-media]. | To add 360 video metadata, you should use [https://github.com/google/spatial-media Google's spatial-media]. | ||
This will add the following sidedata which you can see using <code>ffprobe</code>: | This will add the following sidedata which you can see using <code>ffprobe</code>: | ||
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</pre> | </pre> | ||
===Removing Duplicate Frames=== | ====Removing Duplicate Frames==== | ||
[https://stackoverflow.com/questions/37088517/remove-sequentially-duplicate-frames-when-using-ffmpeg Reference]<br> | [https://stackoverflow.com/questions/37088517/remove-sequentially-duplicate-frames-when-using-ffmpeg Reference]<br> | ||
[https://ffmpeg.org/ffmpeg-filters.html#mpdecimate mpdecimate filter] | [https://ffmpeg.org/ffmpeg-filters.html#mpdecimate mpdecimate filter] | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
===Stack and Unstack=== | ====Stack and Unstack==== | ||
To stack, see <code>hstack</code>, <code>vstack</code>. | To stack, see <code>hstack</code>, <code>vstack</code>. | ||
To unstack, see <code>crop</code>. | To unstack, see <code>crop</code>. | ||
==Filter-Complex== | ===Filter-Complex=== | ||
Filter complex allows you to create a graph of filters. | Filter complex allows you to create a graph of filters. | ||
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</pre> | </pre> | ||
==C API== | ==C API== | ||