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Draw a highlight box, filled panel or framing outline with the FFmpeg drawbox filter
Revision 2
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What this guide covers
Helps editors and motion designers place a coloured rectangle at an exact pixel position on a clip or image, as an outline, a solid panel or a framing mask. Based on the FFmpeg manual and filter source; no command was run. Not suitable for secure redaction.
More about this guide
Guide ID: art_01M6V1H4GWG8DMK4N5ER34E8WN
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Guide title
Draw a highlight box, filled panel or framing outline with the FFmpeg drawbox filter
Coverage
Helps editors and motion designers place a coloured rectangle at an exact pixel position on a clip or image, as an outline, a solid panel or a framing mask. Based on the FFmpeg manual and filter source; no command was run. Not suitable for secure redaction.
Example
Hypothetical and not run: a 200 by 60 translucent red box placed 10 pixels from the left and 20 from the top of a 1280 by 720 clip, with the edge positions worked out by arithmetic only.
Useful starting points
- The border is drawn inside the box rectangle, so the outer size stays at the width and height you set.
- A box size of 0 means the full input width or height, which is a common cause of an unexpected full-frame box.
- A translucent fill does not hide what is underneath, so do not rely on a box to conceal content.
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