RoiRegion
A single rectangular region of interest in normalised [0, 1] coordinates
relative to the frame’s own width / height. q_offset follows the FFmpeg
AVRegionOfInterest convention: -1.0 = best possible quality, +1.0 = worst,
0.0 = no change.
Field |
Type |
Repeated |
Description |
left |
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top |
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right |
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bottom |
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q_offset |