[FFmpeg-devel] [PATCH 2/3] avutil/hwcontext_amf: add support for d3d12va initialisation
Dmitrii Ovchinnikov
ovchinnikov.dmitrii at gmail.com
Fri May 30 16:58:13 EEST 2025
---
libavutil/hwcontext_amf.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/libavutil/hwcontext_amf.c b/libavutil/hwcontext_amf.c
index 24731c20ec..7903109445 100644
--- a/libavutil/hwcontext_amf.c
+++ b/libavutil/hwcontext_amf.c
@@ -28,6 +28,9 @@
#if CONFIG_D3D11VA
#include "libavutil/hwcontext_d3d11va.h"
#endif
+#if CONFIG_D3D12VA
+#include "libavutil/hwcontext_d3d12va.h"
+#endif
#if CONFIG_DXVA2
#define COBJMACROS
#include "libavutil/hwcontext_dxva2.h"
@@ -146,6 +149,9 @@ static const enum AVPixelFormat supported_formats[] = {
#if CONFIG_D3D11VA
AV_PIX_FMT_D3D11,
#endif
+#if CONFIG_D3D12VA
+ AV_PIX_FMT_D3D12,
+#endif
#if CONFIG_DXVA2
AV_PIX_FMT_DXVA2_VLD,
#endif
@@ -555,10 +561,33 @@ static int amf_init_from_d3d11_device(AVAMFDeviceContext* amf_ctx, AVD3D11VADevi
av_log(hwctx, AV_LOG_ERROR, "AMF failed to initialise on the given D3D11 device: %d.\n", res);
return AVERROR(ENODEV);
}
+ av_log(hwctx, AV_LOG_ERROR, "AMF via D3D11");
return 0;
}
#endif
+#if CONFIG_D3D12VA
+static int amf_init_from_d3d12_device(AVAMFDeviceContext* amf_ctx, AVD3D12VADeviceContext *hwctx)
+{
+ AMF_RESULT res;
+ AMFContext2 *context2 = NULL;
+ AMFGuid guid = IID_AMFContext2();
+ res = amf_ctx->context->pVtbl->QueryInterface(amf_ctx->context, &guid, (void**)&context2);
+ AMF_RETURN_IF_FALSE(hwctx, res == AMF_OK, AVERROR_UNKNOWN, "CreateContext2() failed with error %d\n", res);
+ res = context2->pVtbl->InitDX12(context2, hwctx->device, AMF_DX12);
+ context2->pVtbl->Release(context2);
+ if (res != AMF_OK && res != AMF_ALREADY_INITIALIZED) {
+ if (res == AMF_NOT_SUPPORTED)
+ av_log(hwctx, AV_LOG_ERROR, "AMF via D3D12 is not supported on the given device.\n");
+ else
+ av_log(hwctx, AV_LOG_ERROR, "AMF failed to initialise on the given D3D12 device: %d.\n", res);
+ return AVERROR(ENODEV);
+ }
+ return 0;
+}
+#endif
+
+
static int amf_device_derive(AVHWDeviceContext *device_ctx,
AVHWDeviceContext *child_device_ctx, AVDictionary *opts,
int flags)
@@ -588,6 +617,13 @@ static int amf_device_derive(AVHWDeviceContext *device_ctx,
return amf_init_from_d3d11_device(amf_ctx, child_device_hwctx);
}
break;
+#endif
+#if CONFIG_D3D12VA
+ case AV_HWDEVICE_TYPE_D3D12VA: {
+ AVD3D12VADeviceContext *child_device_hwctx = child_device_ctx->hwctx;
+ return amf_init_from_d3d12_device(amf_ctx, child_device_hwctx);
+ }
+ break;
#endif
default: {
av_log(child_device_ctx, AV_LOG_ERROR, "AMF initialisation from a %s device is not supported.\n",
--
2.47.1.windows.1
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