The reason why the generic av_image_copy_uc_from() doesn't really fit in the case for Vulkan is because some planes may be copied via other methods (such as mapping GPU memory), and if they don't satisfy the strict alignment requirements, a gpu image->gpu buffer->cpu ram copy is performed. We need this for hwcontext_vulkan, and I think this will also be useful to API users like libplacebo who would rather not write a custom SIMD memcpy.
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| @@ -14,6 +14,9 @@ libavutil: 2021-04-27 · 13 unmodified lines | ||
| 14 | 14 | |
| 15 | 15 | API changes, most recent first: |
| 16 | 16 | |
| 17 | +2021-08-14 - xxxxxxxxxx - lavu 57.4.100 - imgutils.h | |
| 18 | + Add av_image_copy_plane_uc_from() | |
| 19 | + | |
| 17 | 20 | 2021-08-02 - xxxxxxxxxx - lavc 59.4.100 - packet.h |
| 18 | 21 | Add AVPacket.opaque, AVPacket.opaque_ref, AVPacket.time_base. |
| 19 | 22 | |