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new 8fbd31e715 doc/filters: add entry for mestimate_d3d12
8fbd31e715 is described below
commit 8fbd31e715b95c3cf173f48c2fa9f8de9e224aea
Author: stevxiao <[email protected]>
AuthorDate: Thu Jan 29 10:14:25 2026 -0500
Commit: stevxiao <[email protected]>
CommitDate: Sun Feb 1 09:53:35 2026 -0500
doc/filters: add entry for mestimate_d3d12
Add documentation for the filter "mestimate_d3d12" to the filters
documentation.
This is the follow-up for commit
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21217/commits
Signed-off-by: younengxiao <[email protected]>
---
doc/filters.texi | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/doc/filters.texi b/doc/filters.texi
index 0f64b4a3fa..bd9f881aa1 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -18096,6 +18096,35 @@ Macroblock size. Default @code{16}.
Search parameter. Default @code{7}.
@end table
+@section mestimate_d3d12
+
+Estimate and export motion vectors using D3D12 hardware-accelerated motion
estimation.
+This filter uses GPU hardware motion estimation capabilities available in
+DirectX 12 Video APIs to achieve significant performance improvements
+over the software-based @code{mestimate} filter.
+
+Motion vectors are stored in frame side data to be used by other filters.
+
+This filter requires the input to be in @code{d3d12} hardware pixel format.
+The filter uses quarter-pixel precision for motion vector estimation.
+
+This filter accepts the following options:
+@table @option
+@item mb_size
+Macroblock size. Only @code{8} and @code{16} are supported.
+Default @code{16}.
+@end table
+
+@subsection Examples
+
+Estimate motion vectors using D3D12 hardware acceleration with 16x16 blocks,
+and visualize them:
+@example
+ffmpeg -hwaccel d3d12va -hwaccel_output_format d3d12 -i input.mp4 \
+ -vf mestimate_d3d12=mb_size=16,hwdownload,format=nv12,codecview=mv=pf \
+ -c:v libx264 -preset fast -b:v 5M output.mp4
+@end example
+
@section midequalizer
Apply Midway Image Equalization effect using two video streams.
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