eessppeelllloo/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-05-04 01:55:50 +02:00
Code Issues Packages Projects Releases Wiki Activity

avutil/frame: add AV_SIDE_DATA_PROP_{SIZE,COLOR}_DEPENDENT

Browse Source 
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.
This commit is contained in:
Niklas Haas
2024-12-04 12:20:22 +01:00
parent 01084f3d16
commit 3428a8d830
4 changed files with 31 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
doc/APIchanges
View File

@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2024-03-07
API changes, most recent first:
2024-12-xx - xxxxxxxxxx - lavu 59.52.100 - frame.h
Add AV_SIDE_DATA_PROP_SIZE_DEPENDENT and AV_FRAME_DATA_PROP_COLOR_DEPENDENT.
2024-12-xx - xxxxxxxxxx - lsws 8.13.100 - swscale.h
Add enum SwsIntent and SwsContext.intent.