From 4a6d9312cc1c9d62d66c4def71246d9faae29edb Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期三, 03 三月 2021 14:26:16 +0800
Subject: [PATCH] environment settings
---
module/VideoPlayer/lib/linux/ffmpeg/include/libavutil/hwcontext_d3d11va.h | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 169 insertions(+), 0 deletions(-)
diff --git a/module/VideoPlayer/lib/linux/ffmpeg/include/libavutil/hwcontext_d3d11va.h b/module/VideoPlayer/lib/linux/ffmpeg/include/libavutil/hwcontext_d3d11va.h
new file mode 100644
index 0000000..9f91e9b
--- /dev/null
+++ b/module/VideoPlayer/lib/linux/ffmpeg/include/libavutil/hwcontext_d3d11va.h
@@ -0,0 +1,169 @@
+/*
+ * 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_D3D11VA_H
+#define AVUTIL_HWCONTEXT_D3D11VA_H
+
+/**
+ * @file
+ * An API-specific header for AV_HWDEVICE_TYPE_D3D11VA.
+ *
+ * The default pool implementation will be fixed-size if initial_pool_size is
+ * set (and allocate elements from an array texture). Otherwise it will allocate
+ * individual textures. Be aware that decoding requires a single array texture.
+ *
+ * Using sw_format==AV_PIX_FMT_YUV420P has special semantics, and maps to
+ * DXGI_FORMAT_420_OPAQUE. av_hwframe_transfer_data() is not supported for
+ * this format. Refer to MSDN for details.
+ *
+ * av_hwdevice_ctx_create() for this device type supports a key named "debug"
+ * for the AVDictionary entry. If this is set to any value, the device creation
+ * code will try to load various supported D3D debugging layers.
+ */
+
+#include <d3d11.h>
+#include <stdint.h>
+
+/**
+ * This struct is allocated as AVHWDeviceContext.hwctx
+ */
+typedef struct AVD3D11VADeviceContext {
+ /**
+ * Device used for texture creation and access. This can also be used to
+ * set the libavcodec decoding device.
+ *
+ * Must 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.
+ */
+ ID3D11Device *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.
+ */
+ ID3D11DeviceContext *device_context;
+
+ /**
+ * 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.
+ */
+ ID3D11VideoDevice *video_device;
+
+ /**
+ * If unset, this will be set from the device_context field on init.
+ *
+ * Deallocating the AVHWDeviceContext will always release this interface,
+ * and it does not matter whether it was user-allocated.
+ */
+ ID3D11VideoContext *video_context;
+
+ /**
+ * Callbacks for locking. They protect accesses to device_context and
+ * video_context calls. They also 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;
+} AVD3D11VADeviceContext;
+
+/**
+ * D3D11 frame descriptor for pool allocation.
+ *
+ * In user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
+ * with the data pointer pointing at an object of this type describing the
+ * planes of the frame.
+ *
+ * This has no use outside of custom allocation, and AVFrame AVBufferRef do not
+ * necessarily point to an instance of this struct.
+ */
+typedef struct AVD3D11FrameDescriptor {
+ /**
+ * The texture in which the frame is located. The reference count is
+ * managed by the AVBufferRef, and destroying the reference will release
+ * the interface.
+ *
+ * Normally stored in AVFrame.data[0].
+ */
+ ID3D11Texture2D *texture;
+
+ /**
+ * The index into the array texture element representing the frame, or 0
+ * if the texture is not an array texture.
+ *
+ * Normally stored in AVFrame.data[1] (cast from intptr_t).
+ */
+ intptr_t index;
+} AVD3D11FrameDescriptor;
+
+/**
+ * This struct is allocated as AVHWFramesContext.hwctx
+ */
+typedef struct AVD3D11VAFramesContext {
+ /**
+ * The canonical texture used for pool allocation. If this is set to NULL
+ * on init, the hwframes implementation will allocate and set an array
+ * texture if initial_pool_size > 0.
+ *
+ * The only situation when the API user should set this is:
+ * - the user wants to do manual pool allocation (setting
+ * AVHWFramesContext.pool), instead of letting AVHWFramesContext
+ * allocate the pool
+ * - of an array texture
+ * - and wants it to use it for decoding
+ * - this has to be done before calling av_hwframe_ctx_init()
+ *
+ * Deallocating the AVHWFramesContext will always release this interface,
+ * and it does not matter whether it was user-allocated.
+ *
+ * This is in particular used by the libavcodec D3D11VA hwaccel, which
+ * requires a single array texture. It will create ID3D11VideoDecoderOutputView
+ * objects for each array texture element on decoder initialization.
+ */
+ ID3D11Texture2D *texture;
+
+ /**
+ * D3D11_TEXTURE2D_DESC.BindFlags used for texture creation. The user must
+ * at least set D3D11_BIND_DECODER if the frames context is to be used for
+ * video decoding.
+ * This field is ignored/invalid if a user-allocated texture is provided.
+ */
+ UINT BindFlags;
+
+ /**
+ * D3D11_TEXTURE2D_DESC.MiscFlags used for texture creation.
+ * This field is ignored/invalid if a user-allocated texture is provided.
+ */
+ UINT MiscFlags;
+} AVD3D11VAFramesContext;
+
+#endif /* AVUTIL_HWCONTEXT_D3D11VA_H */
--
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