dep: Add FFmpeg v7.0.2 headers

dep/ffmpeg/include/libavutil/hwcontext_d3d12va.h

@@ -0,0 +1,134 @@
+/*
+ * Direct3D 12 HW acceleration.
+ *
+ * copyright (c) 2022-2023 Wu Jianhua <toqsxw@outlook.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HWCONTEXT_D3D12VA_H
+#define AVUTIL_HWCONTEXT_D3D12VA_H
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_D3D12VA.
+ *
+ * AVHWFramesContext.pool must contain AVBufferRefs whose
+ * data pointer points to an AVD3D12VAFrame struct.
+ */
+#include <stdint.h>
+#include <initguid.h>
+#include <d3d12.h>
+#include <d3d12sdklayers.h>
+#include <d3d12video.h>
+
+/**
+ * @brief This struct is allocated as AVHWDeviceContext.hwctx
+ *
+ */
+typedef struct AVD3D12VADeviceContext {
+    /**
+     * Device used for objects creation and access. This can also be
+     * used to set the libavcodec decoding device.
+     *
+     * Can be set by the user. This is the only mandatory field - the other
+     * device context fields are set from this and are available for convenience.
+     *
+     * Deallocating the AVHWDeviceContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     */
+    ID3D12Device *device;
+
+    /**
+     * If unset, this will be set from the device field on init.
+     *
+     * Deallocating the AVHWDeviceContext will always release this interface,
+     * and it does not matter whether it was user-allocated.
+     */
+    ID3D12VideoDevice *video_device;
+
+    /**
+     * Callbacks for locking. They protect access to the internal staging
+     * texture (for av_hwframe_transfer_data() calls). They do NOT protect
+     * access to hwcontext or decoder state in general.
+     *
+     * If unset on init, the hwcontext implementation will set them to use an
+     * internal mutex.
+     *
+     * The underlying lock must be recursive. lock_ctx is for free use by the
+     * locking implementation.
+     */
+    void (*lock)(void *lock_ctx);
+    void (*unlock)(void *lock_ctx);
+    void *lock_ctx;
+} AVD3D12VADeviceContext;
+
+/**
+ * @brief This struct is used to sync d3d12 execution
+ *
+ */
+typedef struct AVD3D12VASyncContext {
+    /**
+     * D3D12 fence object
+     */
+    ID3D12Fence *fence;
+
+    /**
+     * A handle to the event object that's raised when the fence
+     * reaches a certain value.
+     */
+    HANDLE event;
+
+    /**
+     * The fence value used for sync
+     */
+    uint64_t fence_value;
+} AVD3D12VASyncContext;
+
+/**
+ * @brief D3D12VA frame descriptor for pool allocation.
+ *
+ */
+typedef struct AVD3D12VAFrame {
+    /**
+     * The texture in which the frame is located. The reference count is
+     * managed by the AVBufferRef, and destroying the reference will release
+     * the interface.
+     */
+    ID3D12Resource *texture;
+
+    /**
+     * The sync context for the texture
+     *
+     * @see: https://learn.microsoft.com/en-us/windows/win32/medfound/direct3d-12-video-overview#directx-12-fences
+     */
+    AVD3D12VASyncContext sync_ctx;
+} AVD3D12VAFrame;
+
+/**
+ * @brief This struct is allocated as AVHWFramesContext.hwctx
+ *
+ */
+typedef struct AVD3D12VAFramesContext {
+    /**
+     * DXGI_FORMAT format. MUST be compatible with the pixel format.
+     * If unset, will be automatically set.
+     */
+    DXGI_FORMAT format;
+} AVD3D12VAFramesContext;
+
+#endif /* AVUTIL_HWCONTEXT_D3D12VA_H */