Many filters modify certain aspects of frame data, e.g. through resizing (vf_*scale* family), color volume mapping (vf_lut*, vf_tonemap*), or possibly others. When this happens, we should strip all frame side data that will no longer be correct/relevant after the operation. For example, changing the image size should invalidate AV_FRAME_DATA_PANSCAN because the crop window (given in pixels) no longer corresponds to the actual image size. For another example, tone-mapping filters (e.g. from HDR to SDR) should strip all of the dynamic HDR related metadata. Since there are a lot of different side data types that are affected by such operations, it makes sense to establish this information in a common, easily accessible way. The existing side data properties enum is a perfect fit for this.
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| @@ -2,6 +2,9 @@ The last version increases of all libraries were on 2024-03-07 · 1 unmodified line | |||
| 2 | 2 | ||
| 3 | API changes, most recent first: | 3 | API changes, most recent first: |
| 4 | 4 | ||
| 5 | 2024-12-xx - xxxxxxxxxx - lavu 59.52.100 - frame.h | ||
| 6 | Add AV_SIDE_DATA_PROP_SIZE_DEPENDENT and AV_FRAME_DATA_PROP_COLOR_DEPENDENT. | ||
| 7 | |||
| 5 | 2024-12-xx - xxxxxxxxxx - lsws 8.13.100 - swscale.h | 8 | 2024-12-xx - xxxxxxxxxx - lsws 8.13.100 - swscale.h |
| 6 | Add enum SwsIntent and SwsContext.intent. | 9 | Add enum SwsIntent and SwsContext.intent. |
| 7 | 10 | ||