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new c3d3377fe1 avcodec/d3d12va_encode: Add H264 deblock filter parameter
support
c3d3377fe1 is described below
commit c3d3377fe14645dbb63d937c45df12f3f6746d17
Author: Ling, Edison <[email protected]>
AuthorDate: Mon Dec 22 17:56:18 2025 -0500
Commit: Tong Wu <[email protected]>
CommitDate: Fri Jan 16 07:03:37 2026 +0000
avcodec/d3d12va_encode: Add H264 deblock filter parameter support
add parameter `deblock` for users to explicitly enable/disable deblocking
filter in d3d12 H264 encoding
usage:
-deblock enable or -deblock 1
-deblock disable or -deblock 0
-deblock auto or -deblock -1
sample command line:
```
.\ffmpeg.exe -hwaccel d3d12va -hwaccel_output_format d3d12 -i input.mp4
-c:v h264_d3d12va -deblock enable -y output.mp4
```
---
libavcodec/d3d12va_encode_h264.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/libavcodec/d3d12va_encode_h264.c b/libavcodec/d3d12va_encode_h264.c
index e03269722c..6c9444e9dd 100644
--- a/libavcodec/d3d12va_encode_h264.c
+++ b/libavcodec/d3d12va_encode_h264.c
@@ -44,6 +44,7 @@ typedef struct D3D12VAEncodeH264Context {
int qp;
int profile;
int level;
+ int deblock;
int idr_pic_id;
// Writer structures.
@@ -286,6 +287,23 @@ static int
d3d12va_encode_h264_get_encoder_caps(AVCodecContext *avctx)
priv->unit_opts.cabac = 1;
}
+ // Deblocking filter configuration
+ if (priv->deblock == 1) {
+ if (h264_caps.DisableDeblockingFilterSupportedModes &
D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_H264_SLICES_DEBLOCKING_MODE_FLAG_0_ALL_LUMA_CHROMA_SLICE_BLOCK_EDGES_ALWAYS_FILTERED)
{
+ config->DisableDeblockingFilterConfig =
D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_H264_SLICES_DEBLOCKING_MODE_0_ALL_LUMA_CHROMA_SLICE_BLOCK_EDGES_ALWAYS_FILTERED;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Requested deblocking filter enable
mode not supported by driver.\n");
+ return AVERROR(ENOTSUP);
+ }
+ } else if (priv->deblock == 0) {
+ if (h264_caps.DisableDeblockingFilterSupportedModes &
D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_H264_SLICES_DEBLOCKING_MODE_FLAG_1_DISABLE_ALL_SLICE_BLOCK_EDGES)
{
+ config->DisableDeblockingFilterConfig =
D3D12_VIDEO_ENCODER_CODEC_CONFIGURATION_H264_SLICES_DEBLOCKING_MODE_1_DISABLE_ALL_SLICE_BLOCK_EDGES;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "Requested deblocking filter disable
mode not supported by driver.\n");
+ return AVERROR(ENOTSUP);
+ }
+ }
+
base_ctx->surface_width = FFALIGN(avctx->width, 16);
base_ctx->surface_height = FFALIGN(avctx->height, 16);
@@ -610,6 +628,12 @@ static const AVOption d3d12va_encode_h264_options[] = {
{ LEVEL("6.2", 62) },
#undef LEVEL
+ { "deblock", "Deblocking filter mode",
+ OFFSET(deblock), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, FLAGS, "deblock"
},
+ { "auto", "Default (enabled)", 0, AV_OPT_TYPE_CONST, { .i64
= -1 }, 0, 0, FLAGS, "deblock" },
+ { "disable", "Disable deblocking filter", 0, AV_OPT_TYPE_CONST, { .i64
= 0 }, 0, 0, FLAGS, "deblock" },
+ { "enable", "Enable deblocking filter", 0, AV_OPT_TYPE_CONST, { .i64
= 1 }, 0, 0, FLAGS, "deblock" },
+
{ NULL },
};
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