compat/cuda: add dynamic loader

4 files changed, 1475 insertions, 0 deletions

diff --git a/compat/cuda/dynlink_cuda.h b/compat/cuda/dynlink_cuda.h
new file mode 100644
index 0000000..418bbd0
--- /dev/null
+++ b/compat/cuda/dynlink_cuda.h
@@ -0,0 +1,97 @@
+/*
+ * This copyright notice applies to this header file only:
+ *
+ * Copyright (c) 2016
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the software, and to permit persons to whom the
+ * software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#if !defined(AV_COMPAT_DYNLINK_CUDA_H) && !defined(CUDA_VERSION)
+#define AV_COMPAT_DYNLINK_CUDA_H
+
+#include <stddef.h>
+
+#define CUDA_VERSION 7050
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+#define CUDAAPI __stdcall
+#else
+#define CUDAAPI
+#endif
+
+#define CU_CTX_SCHED_BLOCKING_SYNC 4
+
+typedef int CUdevice;
+typedef void* CUarray;
+typedef void* CUcontext;
+#if defined(__x86_64) || defined(AMD64) || defined(_M_AMD64)
+typedef unsigned long long CUdeviceptr;
+#else
+typedef unsigned int CUdeviceptr;
+#endif
+
+typedef enum cudaError_enum {
+    CUDA_SUCCESS = 0
+} CUresult;
+
+typedef enum CUmemorytype_enum {
+    CU_MEMORYTYPE_HOST = 1,
+    CU_MEMORYTYPE_DEVICE = 2
+} CUmemorytype;
+
+typedef struct CUDA_MEMCPY2D_st {
+    size_t srcXInBytes;
+    size_t srcY;
+    CUmemorytype srcMemoryType;
+    const void *srcHost;
+    CUdeviceptr srcDevice;
+    CUarray srcArray;
+    size_t srcPitch;
+
+    size_t dstXInBytes;
+    size_t dstY;
+    CUmemorytype dstMemoryType;
+    void *dstHost;
+    CUdeviceptr dstDevice;
+    CUarray dstArray;
+    size_t dstPitch;
+
+    size_t WidthInBytes;
+    size_t Height;
+} CUDA_MEMCPY2D;
+
+typedef CUresult CUDAAPI tcuInit(unsigned int Flags);
+typedef CUresult CUDAAPI tcuDeviceGetCount(int *count);
+typedef CUresult CUDAAPI tcuDeviceGet(CUdevice *device, int ordinal);
+typedef CUresult CUDAAPI tcuDeviceGetName(char *name, int len, CUdevice dev);
+typedef CUresult CUDAAPI tcuDeviceComputeCapability(int *major, int *minor, CUdevice dev);
+typedef CUresult CUDAAPI tcuCtxCreate_v2(CUcontext *pctx, unsigned int flags, CUdevice dev);
+typedef CUresult CUDAAPI tcuCtxPushCurrent_v2(CUcontext *pctx);
+typedef CUresult CUDAAPI tcuCtxPopCurrent_v2(CUcontext *pctx);
+typedef CUresult CUDAAPI tcuCtxDestroy_v2(CUcontext ctx);
+typedef CUresult CUDAAPI tcuMemAlloc_v2(CUdeviceptr *dptr, size_t bytesize);
+typedef CUresult CUDAAPI tcuMemFree_v2(CUdeviceptr dptr);
+typedef CUresult CUDAAPI tcuMemcpy2D_v2(const CUDA_MEMCPY2D *pcopy);
+typedef CUresult CUDAAPI tcuGetErrorName(CUresult error, const char** pstr);
+typedef CUresult CUDAAPI tcuGetErrorString(CUresult error, const char** pstr);
+
+#endif
diff --git a/compat/cuda/dynlink_cuviddec.h b/compat/cuda/dynlink_cuviddec.h
new file mode 100644
index 0000000..17207bc
--- /dev/null
+++ b/compat/cuda/dynlink_cuviddec.h
@@ -0,0 +1,808 @@
+/*
+ * This copyright notice applies to this header file only:
+ *
+ * Copyright (c) 2010-2016 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the software, and to permit persons to whom the
+ * software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file cuviddec.h
+ * NvCuvid API provides Video Decoding interface to NVIDIA GPU devices.
+ * \date 2015-2016
+ * This file contains constants, structure definitions and function prototypes used for decoding.
+ */
+
+#if !defined(__CUDA_VIDEO_H__)
+#define __CUDA_VIDEO_H__
+
+#if defined(__x86_64) || defined(AMD64) || defined(_M_AMD64)
+#if (CUDA_VERSION >= 3020) && (!defined(CUDA_FORCE_API_VERSION) || (CUDA_FORCE_API_VERSION >= 3020))
+#define __CUVID_DEVPTR64
+#endif
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus */
+
+typedef void *CUvideodecoder;
+typedef struct _CUcontextlock_st *CUvideoctxlock;
+
+/**
+ * \addtogroup VIDEO_DECODER Video Decoder
+ * @{
+ */
+
+/*!
+ * \enum cudaVideoCodec
+ * Video Codec Enums
+ */
+typedef enum cudaVideoCodec_enum {
+    cudaVideoCodec_MPEG1=0,                 /**<  MPEG1   */
+    cudaVideoCodec_MPEG2,                   /**<  MPEG2  */
+    cudaVideoCodec_MPEG4,                   /**<  MPEG4   */
+    cudaVideoCodec_VC1,                     /**<  VC1   */
+    cudaVideoCodec_H264,                    /**<  H264   */
+    cudaVideoCodec_JPEG,                    /**<  JPEG   */
+    cudaVideoCodec_H264_SVC,                /**<  H264-SVC   */
+    cudaVideoCodec_H264_MVC,                /**<  H264-MVC   */
+    cudaVideoCodec_HEVC,                    /**<  HEVC   */
+    cudaVideoCodec_VP8,                     /**<  VP8   */
+    cudaVideoCodec_VP9,                     /**<  VP9   */
+    cudaVideoCodec_NumCodecs,               /**<  Max COdecs   */
+    // Uncompressed YUV
+    cudaVideoCodec_YUV420 = (('I'<<24)|('Y'<<16)|('U'<<8)|('V')),   /**< Y,U,V (4:2:0)  */
+    cudaVideoCodec_YV12   = (('Y'<<24)|('V'<<16)|('1'<<8)|('2')),   /**< Y,V,U (4:2:0)  */
+    cudaVideoCodec_NV12   = (('N'<<24)|('V'<<16)|('1'<<8)|('2')),   /**< Y,UV  (4:2:0)  */
+    cudaVideoCodec_YUYV   = (('Y'<<24)|('U'<<16)|('Y'<<8)|('V')),   /**< YUYV/YUY2 (4:2:2)  */
+    cudaVideoCodec_UYVY   = (('U'<<24)|('Y'<<16)|('V'<<8)|('Y'))    /**< UYVY (4:2:2)  */
+} cudaVideoCodec;
+
+/*!
+ * \enum cudaVideoSurfaceFormat
+ * Video Surface Formats Enums
+ */
+typedef enum cudaVideoSurfaceFormat_enum {
+    cudaVideoSurfaceFormat_NV12=0       /**< NV12 (currently the only supported output format)  */
+} cudaVideoSurfaceFormat;
+
+/*!
+ * \enum cudaVideoDeinterlaceMode
+ * Deinterlacing Modes Enums
+ */
+typedef enum cudaVideoDeinterlaceMode_enum {
+    cudaVideoDeinterlaceMode_Weave=0,   /**< Weave both fields (no deinterlacing) */
+    cudaVideoDeinterlaceMode_Bob,       /**< Drop one field  */
+    cudaVideoDeinterlaceMode_Adaptive   /**< Adaptive deinterlacing  */
+} cudaVideoDeinterlaceMode;
+
+/*!
+ * \enum cudaVideoChromaFormat
+ * Chroma Formats Enums
+ */
+typedef enum cudaVideoChromaFormat_enum {
+    cudaVideoChromaFormat_Monochrome=0,  /**< MonoChrome */
+    cudaVideoChromaFormat_420,           /**< 4:2:0 */
+    cudaVideoChromaFormat_422,           /**< 4:2:2 */
+    cudaVideoChromaFormat_444            /**< 4:4:4 */
+} cudaVideoChromaFormat;
+
+/*!
+ * \enum cudaVideoCreateFlags
+ * Decoder Flags Enums
+ */
+typedef enum cudaVideoCreateFlags_enum {
+    cudaVideoCreate_Default = 0x00,     /**< Default operation mode: use dedicated video engines */
+    cudaVideoCreate_PreferCUDA = 0x01,  /**< Use a CUDA-based decoder if faster than dedicated engines (requires a valid vidLock object for multi-threading) */
+    cudaVideoCreate_PreferDXVA = 0x02,  /**< Go through DXVA internally if possible (requires D3D9 interop) */
+    cudaVideoCreate_PreferCUVID = 0x04  /**< Use dedicated video engines directly */
+} cudaVideoCreateFlags;
+
+/*!
+ * \struct CUVIDDECODECREATEINFO
+ * Struct used in create decoder
+ */
+typedef struct _CUVIDDECODECREATEINFO
+{
+    unsigned long ulWidth;              /**< Coded Sequence Width */
+    unsigned long ulHeight;             /**< Coded Sequence Height */
+    unsigned long ulNumDecodeSurfaces;  /**< Maximum number of internal decode surfaces */
+    cudaVideoCodec CodecType;           /**< cudaVideoCodec_XXX */
+    cudaVideoChromaFormat ChromaFormat; /**< cudaVideoChromaFormat_XXX (only 4:2:0 is currently supported) */
+    unsigned long ulCreationFlags;      /**< Decoder creation flags (cudaVideoCreateFlags_XXX) */
+    unsigned long bitDepthMinus8;
+    unsigned long Reserved1[4];         /**< Reserved for future use - set to zero */
+    /**
+    * area of the frame that should be displayed
+    */
+    struct {
+        short left;
+        short top;
+        short right;
+        short bottom;
+    } display_area;
+
+    cudaVideoSurfaceFormat OutputFormat;       /**< cudaVideoSurfaceFormat_XXX */
+    cudaVideoDeinterlaceMode DeinterlaceMode;  /**< cudaVideoDeinterlaceMode_XXX */
+    unsigned long ulTargetWidth;               /**< Post-processed Output Width (Should be aligned to 2) */
+    unsigned long ulTargetHeight;              /**< Post-processed Output Height (Should be aligbed to 2) */
+    unsigned long ulNumOutputSurfaces;         /**< Maximum number of output surfaces simultaneously mapped */
+    CUvideoctxlock vidLock;                    /**< If non-NULL, context lock used for synchronizing ownership of the cuda context */
+    /**
+    * target rectangle in the output frame (for aspect ratio conversion)
+    * if a null rectangle is specified, {0,0,ulTargetWidth,ulTargetHeight} will be used
+    */
+    struct {
+        short left;
+        short top;
+        short right;
+        short bottom;
+    } target_rect;
+    unsigned long Reserved2[5];                /**< Reserved for future use - set to zero */
+} CUVIDDECODECREATEINFO;
+
+/*!
+ * \struct CUVIDH264DPBENTRY
+ * H.264 DPB Entry
+ */
+typedef struct _CUVIDH264DPBENTRY
+{
+    int PicIdx;                 /**< picture index of reference frame */
+    int FrameIdx;               /**< frame_num(short-term) or LongTermFrameIdx(long-term) */
+    int is_long_term;           /**< 0=short term reference, 1=long term reference */
+    int not_existing;           /**< non-existing reference frame (corresponding PicIdx should be set to -1) */
+    int used_for_reference;     /**< 0=unused, 1=top_field, 2=bottom_field, 3=both_fields */
+    int FieldOrderCnt[2];       /**< field order count of top and bottom fields */
+} CUVIDH264DPBENTRY;
+
+/*!
+ * \struct CUVIDH264MVCEXT
+ * H.264 MVC Picture Parameters Ext
+ */
+typedef struct _CUVIDH264MVCEXT
+{
+    int num_views_minus1;
+    int view_id;
+    unsigned char inter_view_flag;
+    unsigned char num_inter_view_refs_l0;
+    unsigned char num_inter_view_refs_l1;
+    unsigned char MVCReserved8Bits;
+    int InterViewRefsL0[16];
+    int InterViewRefsL1[16];
+} CUVIDH264MVCEXT;
+
+/*!
+ * \struct CUVIDH264SVCEXT
+ * H.264 SVC Picture Parameters Ext
+ */
+typedef struct _CUVIDH264SVCEXT
+{
+    unsigned char profile_idc;
+    unsigned char level_idc;
+    unsigned char DQId;
+    unsigned char DQIdMax;
+    unsigned char disable_inter_layer_deblocking_filter_idc;
+    unsigned char ref_layer_chroma_phase_y_plus1;
+    signed char   inter_layer_slice_alpha_c0_offset_div2;
+    signed char   inter_layer_slice_beta_offset_div2;
+
+    unsigned short DPBEntryValidFlag;
+    unsigned char inter_layer_deblocking_filter_control_present_flag;
+    unsigned char extended_spatial_scalability_idc;
+    unsigned char adaptive_tcoeff_level_prediction_flag;
+    unsigned char slice_header_restriction_flag;
+    unsigned char chroma_phase_x_plus1_flag;
+    unsigned char chroma_phase_y_plus1;
+
+    unsigned char tcoeff_level_prediction_flag;
+    unsigned char constrained_intra_resampling_flag;
+    unsigned char ref_layer_chroma_phase_x_plus1_flag;
+    unsigned char store_ref_base_pic_flag;
+    unsigned char Reserved8BitsA;
+    unsigned char Reserved8BitsB;
+    // For the 4 scaled_ref_layer_XX fields below,
+    // if (extended_spatial_scalability_idc == 1), SPS field, G.7.3.2.1.4, add prefix "seq_"
+    // if (extended_spatial_scalability_idc == 2), SLH field, G.7.3.3.4,
+    short scaled_ref_layer_left_offset;
+    short scaled_ref_layer_top_offset;
+    short scaled_ref_layer_right_offset;
+    short scaled_ref_layer_bottom_offset;
+    unsigned short Reserved16Bits;
+    struct _CUVIDPICPARAMS *pNextLayer; /**< Points to the picparams for the next layer to be decoded. Linked list ends at the target layer. */
+    int bRefBaseLayer;                  /**< whether to store ref base pic */
+} CUVIDH264SVCEXT;
+
+/*!
+ * \struct CUVIDH264PICPARAMS
+ * H.264 Picture Parameters
+ */
+typedef struct _CUVIDH264PICPARAMS
+{
+    // SPS
+    int log2_max_frame_num_minus4;
+    int pic_order_cnt_type;
+    int log2_max_pic_order_cnt_lsb_minus4;
+    int delta_pic_order_always_zero_flag;
+    int frame_mbs_only_flag;
+    int direct_8x8_inference_flag;
+    int num_ref_frames;             // NOTE: shall meet level 4.1 restrictions
+    unsigned char residual_colour_transform_flag;
+    unsigned char bit_depth_luma_minus8;    // Must be 0 (only 8-bit supported)
+    unsigned char bit_depth_chroma_minus8;  // Must be 0 (only 8-bit supported)
+    unsigned char qpprime_y_zero_transform_bypass_flag;
+    // PPS
+    int entropy_coding_mode_flag;
+    int pic_order_present_flag;
+    int num_ref_idx_l0_active_minus1;
+    int num_ref_idx_l1_active_minus1;
+    int weighted_pred_flag;
+    int weighted_bipred_idc;
+    int pic_init_qp_minus26;
+    int deblocking_filter_control_present_flag;
+    int redundant_pic_cnt_present_flag;
+    int transform_8x8_mode_flag;
+    int MbaffFrameFlag;
+    int constrained_intra_pred_flag;
+    int chroma_qp_index_offset;
+    int second_chroma_qp_index_offset;
+    int ref_pic_flag;
+    int frame_num;
+    int CurrFieldOrderCnt[2];
+    // DPB
+    CUVIDH264DPBENTRY dpb[16];          // List of reference frames within the DPB
+    // Quantization Matrices (raster-order)
+    unsigned char WeightScale4x4[6][16];
+    unsigned char WeightScale8x8[2][64];
+    // FMO/ASO
+    unsigned char fmo_aso_enable;
+    unsigned char num_slice_groups_minus1;
+    unsigned char slice_group_map_type;
+    signed char pic_init_qs_minus26;
+    unsigned int slice_group_change_rate_minus1;
+    union
+    {
+        unsigned long long slice_group_map_addr;
+        const unsigned char *pMb2SliceGroupMap;
+    } fmo;
+    unsigned int  Reserved[12];
+    // SVC/MVC
+    union
+    {
+        CUVIDH264MVCEXT mvcext;
+        CUVIDH264SVCEXT svcext;
+    } svcmvc;
+} CUVIDH264PICPARAMS;
+
+
+/*!
+ * \struct CUVIDMPEG2PICPARAMS
+ * MPEG-2 Picture Parameters
+ */
+typedef struct _CUVIDMPEG2PICPARAMS
+{
+    int ForwardRefIdx;          // Picture index of forward reference (P/B-frames)
+    int BackwardRefIdx;         // Picture index of backward reference (B-frames)
+    int picture_coding_type;
+    int full_pel_forward_vector;
+    int full_pel_backward_vector;
+    int f_code[2][2];
+    int intra_dc_precision;
+    int frame_pred_frame_dct;
+    int concealment_motion_vectors;
+    int q_scale_type;
+    int intra_vlc_format;
+    int alternate_scan;
+    int top_field_first;
+    // Quantization matrices (raster order)
+    unsigned char QuantMatrixIntra[64];
+    unsigned char QuantMatrixInter[64];
+} CUVIDMPEG2PICPARAMS;
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+//
+// MPEG-4 Picture Parameters
+//
+
+// MPEG-4 has VOP types instead of Picture types
+#define I_VOP 0
+#define P_VOP 1
+#define B_VOP 2
+#define S_VOP 3
+
+/*!
+ * \struct CUVIDMPEG4PICPARAMS
+ * MPEG-4 Picture Parameters
+ */
+typedef struct _CUVIDMPEG4PICPARAMS
+{
+    int ForwardRefIdx;          // Picture index of forward reference (P/B-frames)
+    int BackwardRefIdx;         // Picture index of backward reference (B-frames)
+    // VOL
+    int video_object_layer_width;
+    int video_object_layer_height;
+    int vop_time_increment_bitcount;
+    int top_field_first;
+    int resync_marker_disable;
+    int quant_type;
+    int quarter_sample;
+    int short_video_header;
+    int divx_flags;
+    // VOP
+    int vop_coding_type;
+    int vop_coded;
+    int vop_rounding_type;
+    int alternate_vertical_scan_flag;
+    int interlaced;
+    int vop_fcode_forward;
+    int vop_fcode_backward;
+    int trd[2];
+    int trb[2];
+    // Quantization matrices (raster order)
+    unsigned char QuantMatrixIntra[64];
+    unsigned char QuantMatrixInter[64];
+    int gmc_enabled;
+} CUVIDMPEG4PICPARAMS;
+
+/*!
+ * \struct CUVIDVC1PICPARAMS
+ * VC1 Picture Parameters
+ */
+typedef struct _CUVIDVC1PICPARAMS
+{
+    int ForwardRefIdx;      /**< Picture index of forward reference (P/B-frames) */
+    int BackwardRefIdx;     /**< Picture index of backward reference (B-frames) */
+    int FrameWidth;         /**< Actual frame width */
+    int FrameHeight;        /**< Actual frame height */
+    // PICTURE
+    int intra_pic_flag;     /**< Set to 1 for I,BI frames */
+    int ref_pic_flag;       /**< Set to 1 for I,P frames */
+    int progressive_fcm;    /**< Progressive frame */
+    // SEQUENCE
+    int profile;
+    int postprocflag;
+    int pulldown;
+    int interlace;
+    int tfcntrflag;
+    int finterpflag;
+    int psf;
+    int multires;
+    int syncmarker;
+    int rangered;
+    int maxbframes;
+    // ENTRYPOINT
+    int panscan_flag;
+    int refdist_flag;
+    int extended_mv;
+    int dquant;
+    int vstransform;
+    int loopfilter;
+    int fastuvmc;
+    int overlap;
+    int quantizer;
+    int extended_dmv;
+    int range_mapy_flag;
+    int range_mapy;
+    int range_mapuv_flag;
+    int range_mapuv;
+    int rangeredfrm;    // range reduction state
+} CUVIDVC1PICPARAMS;
+
+/*!
+ * \struct CUVIDJPEGPICPARAMS
+ * JPEG Picture Parameters
+ */
+typedef struct _CUVIDJPEGPICPARAMS
+{
+    int Reserved;
+} CUVIDJPEGPICPARAMS;
+
+
+ /*!
+ * \struct CUVIDHEVCPICPARAMS
+ * HEVC Picture Parameters
+ */
+typedef struct _CUVIDHEVCPICPARAMS
+{
+    // sps
+    int pic_width_in_luma_samples;
+    int pic_height_in_luma_samples;
+    unsigned char log2_min_luma_coding_block_size_minus3;
+    unsigned char log2_diff_max_min_luma_coding_block_size;
+    unsigned char log2_min_transform_block_size_minus2;
+    unsigned char log2_diff_max_min_transform_block_size;
+    unsigned char pcm_enabled_flag;
+    unsigned char log2_min_pcm_luma_coding_block_size_minus3;
+    unsigned char log2_diff_max_min_pcm_luma_coding_block_size;
+    unsigned char pcm_sample_bit_depth_luma_minus1;
+
+    unsigned char pcm_sample_bit_depth_chroma_minus1;
+    unsigned char pcm_loop_filter_disabled_flag;
+    unsigned char strong_intra_smoothing_enabled_flag;
+    unsigned char max_transform_hierarchy_depth_intra;
+    unsigned char max_transform_hierarchy_depth_inter;
+    unsigned char amp_enabled_flag;
+    unsigned char separate_colour_plane_flag;
+    unsigned char log2_max_pic_order_cnt_lsb_minus4;
+
+    unsigned char num_short_term_ref_pic_sets;
+    unsigned char long_term_ref_pics_present_flag;
+    unsigned char num_long_term_ref_pics_sps;
+    unsigned char sps_temporal_mvp_enabled_flag;
+    unsigned char sample_adaptive_offset_enabled_flag;
+    unsigned char scaling_list_enable_flag;
+    unsigned char IrapPicFlag;
+    unsigned char IdrPicFlag;
+
+    unsigned char bit_depth_luma_minus8;
+    unsigned char bit_depth_chroma_minus8;
+    unsigned char reserved1[14];
+
+    // pps
+    unsigned char dependent_slice_segments_enabled_flag;
+    unsigned char slice_segment_header_extension_present_flag;
+    unsigned char sign_data_hiding_enabled_flag;
+    unsigned char cu_qp_delta_enabled_flag;
+    unsigned char diff_cu_qp_delta_depth;
+    signed char init_qp_minus26;
+    signed char pps_cb_qp_offset;
+    signed char pps_cr_qp_offset;
+
+    unsigned char constrained_intra_pred_flag;
+    unsigned char weighted_pred_flag;
+    unsigned char weighted_bipred_flag;
+    unsigned char transform_skip_enabled_flag;
+    unsigned char transquant_bypass_enabled_flag;
+    unsigned char entropy_coding_sync_enabled_flag;
+    unsigned char log2_parallel_merge_level_minus2;
+    unsigned char num_extra_slice_header_bits;
+
+    unsigned char loop_filter_across_tiles_enabled_flag;
+    unsigned char loop_filter_across_slices_enabled_flag;
+    unsigned char output_flag_present_flag;
+    unsigned char num_ref_idx_l0_default_active_minus1;
+    unsigned char num_ref_idx_l1_default_active_minus1;
+    unsigned char lists_modification_present_flag;
+    unsigned char cabac_init_present_flag;
+    unsigned char pps_slice_chroma_qp_offsets_present_flag;
+
+    unsigned char deblocking_filter_override_enabled_flag;
+    unsigned char pps_deblocking_filter_disabled_flag;
+    signed char pps_beta_offset_div2;
+    signed char pps_tc_offset_div2;
+    unsigned char tiles_enabled_flag;
+    unsigned char uniform_spacing_flag;
+    unsigned char num_tile_columns_minus1;
+    unsigned char num_tile_rows_minus1;
+
+    unsigned short column_width_minus1[21];
+    unsigned short row_height_minus1[21];
+    unsigned int reserved3[15];
+
+    // RefPicSets
+    int NumBitsForShortTermRPSInSlice;
+    int NumDeltaPocsOfRefRpsIdx;
+    int NumPocTotalCurr;
+    int NumPocStCurrBefore;
+    int NumPocStCurrAfter;
+    int NumPocLtCurr;
+    int CurrPicOrderCntVal;
+    int RefPicIdx[16];                  // [refpic] Indices of valid reference pictures (-1 if unused for reference)
+    int PicOrderCntVal[16];             // [refpic]
+    unsigned char IsLongTerm[16];       // [refpic] 0=not a long-term reference, 1=long-term reference
+    unsigned char RefPicSetStCurrBefore[8]; // [0..NumPocStCurrBefore-1] -> refpic (0..15)
+    unsigned char RefPicSetStCurrAfter[8];  // [0..NumPocStCurrAfter-1] -> refpic (0..15)
+    unsigned char RefPicSetLtCurr[8];       // [0..NumPocLtCurr-1] -> refpic (0..15)
+    unsigned char RefPicSetInterLayer0[8];
+    unsigned char RefPicSetInterLayer1[8];
+    unsigned int reserved4[12];
+
+    // scaling lists (diag order)
+    unsigned char ScalingList4x4[6][16];       // [matrixId][i]
+    unsigned char ScalingList8x8[6][64];       // [matrixId][i]
+    unsigned char ScalingList16x16[6][64];     // [matrixId][i]
+    unsigned char ScalingList32x32[2][64];     // [matrixId][i]
+    unsigned char ScalingListDCCoeff16x16[6];  // [matrixId]
+    unsigned char ScalingListDCCoeff32x32[2];  // [matrixId]
+} CUVIDHEVCPICPARAMS;
+
+
+/*!
+ * \struct CUVIDVP8PICPARAMS
+ * VP8 Picture Parameters
+ */
+typedef struct _CUVIDVP8PICPARAMS
+{
+    int width;
+    int height;
+    unsigned int first_partition_size;
+    //Frame Indexes
+    unsigned char LastRefIdx;
+    unsigned char GoldenRefIdx;
+    unsigned char AltRefIdx;
+    union {
+        struct {
+            unsigned char frame_type : 1;    /**< 0 = KEYFRAME, 1 = INTERFRAME  */
+            unsigned char version : 3;
+            unsigned char show_frame : 1;
+            unsigned char update_mb_segmentation_data : 1;    /**< Must be 0 if segmentation is not enabled */
+            unsigned char Reserved2Bits : 2;
+        };
+        unsigned char wFrameTagFlags;
+    } tagflags;
+    unsigned char Reserved1[4];
+    unsigned int  Reserved2[3];
+} CUVIDVP8PICPARAMS;
+
+/*!
+ * \struct CUVIDVP9PICPARAMS
+ * VP9 Picture Parameters
+ */
+typedef struct _CUVIDVP9PICPARAMS
+{
+    unsigned int width;
+    unsigned int height;
+
+    //Frame Indices
+    unsigned char LastRefIdx;
+    unsigned char GoldenRefIdx;
+    unsigned char AltRefIdx;
+    unsigned char colorSpace;
+
+    unsigned short profile : 3;
+    unsigned short frameContextIdx : 2;
+    unsigned short frameType : 1;
+    unsigned short showFrame : 1;
+    unsigned short errorResilient : 1;
+    unsigned short frameParallelDecoding : 1;
+    unsigned short subSamplingX : 1;
+    unsigned short subSamplingY : 1;
+    unsigned short intraOnly : 1;
+    unsigned short allow_high_precision_mv : 1;
+    unsigned short refreshEntropyProbs : 1;
+    unsigned short reserved2Bits : 2;
+
+    unsigned short reserved16Bits;
+
+    unsigned char  refFrameSignBias[4];
+
+    unsigned char bitDepthMinus8Luma;
+    unsigned char bitDepthMinus8Chroma;
+    unsigned char loopFilterLevel;
+    unsigned char loopFilterSharpness;
+
+    unsigned char modeRefLfEnabled;
+    unsigned char log2_tile_columns;
+    unsigned char log2_tile_rows;
+
+    unsigned char segmentEnabled : 1;
+    unsigned char segmentMapUpdate : 1;
+    unsigned char segmentMapTemporalUpdate : 1;
+    unsigned char segmentFeatureMode : 1;
+    unsigned char reserved4Bits : 4;
+
+
+    unsigned char segmentFeatureEnable[8][4];
+    short segmentFeatureData[8][4];
+    unsigned char mb_segment_tree_probs[7];
+    unsigned char segment_pred_probs[3];
+    unsigned char reservedSegment16Bits[2];
+
+    int qpYAc;
+    int qpYDc;
+    int qpChDc;
+    int qpChAc;
+
+    unsigned int activeRefIdx[3];
+    unsigned int resetFrameContext;
+    unsigned int mcomp_filter_type;
+    unsigned int mbRefLfDelta[4];
+    unsigned int mbModeLfDelta[2];
+    unsigned int frameTagSize;
+    unsigned int offsetToDctParts;
+    unsigned int reserved128Bits[4];
+
+} CUVIDVP9PICPARAMS;
+
+
+/*!
+ * \struct CUVIDPICPARAMS
+ * Picture Parameters for Decoding
+ */
+typedef struct _CUVIDPICPARAMS
+{
+    int PicWidthInMbs;                    /**< Coded Frame Size */
+    int FrameHeightInMbs;                 /**< Coded Frame Height */
+    int CurrPicIdx;                       /**< Output index of the current picture */
+    int field_pic_flag;                   /**< 0=frame picture, 1=field picture */
+    int bottom_field_flag;                /**< 0=top field, 1=bottom field (ignored if field_pic_flag=0) */
+    int second_field;                     /**< Second field of a complementary field pair */
+    // Bitstream data
+    unsigned int nBitstreamDataLen;        /**< Number of bytes in bitstream data buffer */
+    const unsigned char *pBitstreamData;   /**< Ptr to bitstream data for this picture (slice-layer) */
+    unsigned int nNumSlices;               /**< Number of slices in this picture */
+    const unsigned int *pSliceDataOffsets; /**< nNumSlices entries, contains offset of each slice within the bitstream data buffer */
+    int ref_pic_flag;                      /**< This picture is a reference picture */
+    int intra_pic_flag;                    /**< This picture is entirely intra coded */
+    unsigned int Reserved[30];             /**< Reserved for future use */
+    // Codec-specific data
+    union {
+        CUVIDMPEG2PICPARAMS mpeg2;         /**< Also used for MPEG-1 */
+        CUVIDH264PICPARAMS h264;
+        CUVIDVC1PICPARAMS vc1;
+        CUVIDMPEG4PICPARAMS mpeg4;
+        CUVIDJPEGPICPARAMS jpeg;
+        CUVIDHEVCPICPARAMS hevc;
+        CUVIDVP8PICPARAMS vp8;
+        CUVIDVP9PICPARAMS vp9;
+        unsigned int CodecReserved[1024];
+    } CodecSpecific;
+} CUVIDPICPARAMS;
+
+
+/*!
+ * \struct CUVIDPROCPARAMS
+ * Picture Parameters for Postprocessing
+ */
+typedef struct _CUVIDPROCPARAMS
+{
+    int progressive_frame;  /**< Input is progressive (deinterlace_mode will be ignored)  */
+    int second_field;       /**< Output the second field (ignored if deinterlace mode is Weave) */
+    int top_field_first;    /**< Input frame is top field first (1st field is top, 2nd field is bottom) */
+    int unpaired_field;     /**< Input only contains one field (2nd field is invalid) */
+    // The fields below are used for raw YUV input
+    unsigned int reserved_flags;        /**< Reserved for future use (set to zero) */
+    unsigned int reserved_zero;         /**< Reserved (set to zero) */
+    unsigned long long raw_input_dptr;  /**< Input CUdeviceptr for raw YUV extensions */
+    unsigned int raw_input_pitch;       /**< pitch in bytes of raw YUV input (should be aligned appropriately) */
+    unsigned int raw_input_format;      /**< Reserved for future use (set to zero) */
+    unsigned long long raw_output_dptr; /**< Reserved for future use (set to zero) */
+    unsigned int raw_output_pitch;      /**< Reserved for future use (set to zero) */
+    unsigned int Reserved[48];
+    void *Reserved3[3];
+} CUVIDPROCPARAMS;
+
+
+/**
+ *
+ * In order to minimize decode latencies, there should be always at least 2 pictures in the decode
+ * queue at any time, in order to make sure that all decode engines are always busy.
+ *
+ * Overall data flow:
+ *  - cuvidCreateDecoder(...)
+ *  For each picture:
+ *  - cuvidDecodePicture(N)
+ *  - cuvidMapVideoFrame(N-4)
+ *  - do some processing in cuda
+ *  - cuvidUnmapVideoFrame(N-4)
+ *  - cuvidDecodePicture(N+1)
+ *  - cuvidMapVideoFrame(N-3)
+ *    ...
+ *  - cuvidDestroyDecoder(...)
+ *
+ * NOTE:
+ * - When the cuda context is created from a D3D device, the D3D device must also be created
+ *   with the D3DCREATE_MULTITHREADED flag.
+ * - There is a limit to how many pictures can be mapped simultaneously (ulNumOutputSurfaces)
+ * - cuVidDecodePicture may block the calling thread if there are too many pictures pending
+ *   in the decode queue
+ */
+
+/**
+ * \fn CUresult CUDAAPI cuvidCreateDecoder(CUvideodecoder *phDecoder, CUVIDDECODECREATEINFO *pdci)
+ * Create the decoder object
+ */
+typedef CUresult CUDAAPI tcuvidCreateDecoder(CUvideodecoder *phDecoder, CUVIDDECODECREATEINFO *pdci);
+
+/**
+ * \fn CUresult CUDAAPI cuvidDestroyDecoder(CUvideodecoder hDecoder)
+ * Destroy the decoder object
+ */
+typedef CUresult CUDAAPI tcuvidDestroyDecoder(CUvideodecoder hDecoder);
+
+/**
+ * \fn CUresult CUDAAPI cuvidDecodePicture(CUvideodecoder hDecoder, CUVIDPICPARAMS *pPicParams)
+ * Decode a single picture (field or frame)
+ */
+typedef CUresult CUDAAPI tcuvidDecodePicture(CUvideodecoder hDecoder, CUVIDPICPARAMS *pPicParams);
+
+
+#if !defined(__CUVID_DEVPTR64) || defined(__CUVID_INTERNAL)
+/**
+ * \fn CUresult CUDAAPI cuvidMapVideoFrame(CUvideodecoder hDecoder, int nPicIdx, unsigned int *pDevPtr, unsigned int *pPitch, CUVIDPROCPARAMS *pVPP);
+ * Post-process and map a video frame for use in cuda
+ */
+typedef CUresult CUDAAPI tcuvidMapVideoFrame(CUvideodecoder hDecoder, int nPicIdx,
+                                             unsigned int *pDevPtr, unsigned int *pPitch,
+                                             CUVIDPROCPARAMS *pVPP);
+
+/**
+ * \fn CUresult CUDAAPI cuvidUnmapVideoFrame(CUvideodecoder hDecoder, unsigned int DevPtr)
+ * Unmap a previously mapped video frame
+ */
+typedef CUresult CUDAAPI tcuvidUnmapVideoFrame(CUvideodecoder hDecoder, unsigned int DevPtr);
+#endif
+
+#if defined(WIN64) || defined(_WIN64) || defined(__x86_64) || defined(AMD64) || defined(_M_AMD64)
+/**
+ * \fn CUresult CUDAAPI cuvidMapVideoFrame64(CUvideodecoder hDecoder, int nPicIdx, unsigned long long *pDevPtr, unsigned int *pPitch, CUVIDPROCPARAMS *pVPP);
+ * map a video frame
+ */
+typedef CUresult CUDAAPI tcuvidMapVideoFrame64(CUvideodecoder hDecoder, int nPicIdx, unsigned long long *pDevPtr,
+                                               unsigned int *pPitch, CUVIDPROCPARAMS *pVPP);
+
+/**
+ * \fn CUresult CUDAAPI cuvidUnmapVideoFrame64(CUvideodecoder hDecoder, unsigned long long DevPtr);
+ * Unmap a previously mapped video frame
+ */
+typedef CUresult CUDAAPI tcuvidUnmapVideoFrame64(CUvideodecoder hDecoder, unsigned long long DevPtr);
+
+#if defined(__CUVID_DEVPTR64) && !defined(__CUVID_INTERNAL)
+#define tcuvidMapVideoFrame      tcuvidMapVideoFrame64
+#define tcuvidUnmapVideoFrame    tcuvidUnmapVideoFrame64
+#endif
+#endif
+
+
+/**
+ *
+ * Context-locking: to facilitate multi-threaded implementations, the following 4 functions
+ * provide a simple mutex-style host synchronization. If a non-NULL context is specified
+ * in CUVIDDECODECREATEINFO, the codec library will acquire the mutex associated with the given
+ * context before making any cuda calls.
+ * A multi-threaded application could create a lock associated with a context handle so that
+ * multiple threads can safely share the same cuda context:
+ *  - use cuCtxPopCurrent immediately after context creation in order to create a 'floating' context
+ *    that can be passed to cuvidCtxLockCreate.
+ *  - When using a floating context, all cuda calls should only be made within a cuvidCtxLock/cuvidCtxUnlock section.
+ *
+ * NOTE: This is a safer alternative to cuCtxPushCurrent and cuCtxPopCurrent, and is not related to video
+ * decoder in any way (implemented as a critical section associated with cuCtx{Push|Pop}Current calls).
+*/
+
+/**
+ * \fn CUresult CUDAAPI cuvidCtxLockCreate(CUvideoctxlock *pLock, CUcontext ctx)
+ */
+typedef CUresult CUDAAPI tcuvidCtxLockCreate(CUvideoctxlock *pLock, CUcontext ctx);
+
+/**
+ * \fn CUresult CUDAAPI cuvidCtxLockDestroy(CUvideoctxlock lck)
+ */
+typedef CUresult CUDAAPI tcuvidCtxLockDestroy(CUvideoctxlock lck);
+
+/**
+ * \fn CUresult CUDAAPI cuvidCtxLock(CUvideoctxlock lck, unsigned int reserved_flags)
+ */
+typedef CUresult CUDAAPI tcuvidCtxLock(CUvideoctxlock lck, unsigned int reserved_flags);
+
+/**
+ * \fn CUresult CUDAAPI cuvidCtxUnlock(CUvideoctxlock lck, unsigned int reserved_flags)
+ */
+typedef CUresult CUDAAPI tcuvidCtxUnlock(CUvideoctxlock lck, unsigned int reserved_flags);
+
+/** @} */  /* End VIDEO_DECODER */
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+#endif // __CUDA_VIDEO_H__
diff --git a/compat/cuda/dynlink_loader.h b/compat/cuda/dynlink_loader.h
new file mode 100644
index 0000000..33f23af
--- /dev/null
+++ b/compat/cuda/dynlink_loader.h
@@ -0,0 +1,254 @@
+/*
+ * This copyright notice applies to this header file only:
+ *
+ * Copyright (c) 2016
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the software, and to permit persons to whom the
+ * software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef AV_COMPAT_CUDA_DYNLINK_LOADER_H
+#define AV_COMPAT_CUDA_DYNLINK_LOADER_H
+
+#include "compat/cuda/dynlink_cuda.h"
+#include "compat/cuda/dynlink_nvcuvid.h"
+#include "compat/nvenc/nvEncodeAPI.h"
+#include "compat/w32dlfcn.h"
+
+#include "libavutil/log.h"
+#include "libavutil/error.h"
+
+#if defined(_WIN32)
+# define LIB_HANDLE HMODULE
+#else
+# define LIB_HANDLE void*
+#endif
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+# define CUDA_LIBNAME "nvcuda.dll"
+# define NVCUVID_LIBNAME "nvcuvid.dll"
+# if ARCH_X86_64
+#  define NVENC_LIBNAME "nvEncodeAPI64.dll"
+# else
+#  define NVENC_LIBNAME "nvEncodeAPI.dll"
+# endif
+#else
+# define CUDA_LIBNAME "libcuda.so.1"
+# define NVCUVID_LIBNAME "libnvcuvid.so.1"
+# define NVENC_LIBNAME "libnvidia-encode.so.1"
+#endif
+
+#define LOAD_LIBRARY(l, path)                                     \
+    do {                                                          \
+        if (!((l) = dlopen(path, RTLD_LAZY))) {                   \
+            av_log(NULL, AV_LOG_ERROR, "Cannot load %s\n", path); \
+            ret = AVERROR_UNKNOWN;                                \
+            goto error;                                           \
+        }                                                         \
+        av_log(NULL, AV_LOG_TRACE, "Loaded lib: %s\n", path);     \
+    } while (0)
+
+#define LOAD_SYMBOL(fun, symbol)                                    \
+    do {                                                            \
+        if (!((f->fun) = dlsym(f->lib, symbol))) {                  \
+            av_log(NULL, AV_LOG_ERROR, "Cannot load %s\n", symbol); \
+            ret = AVERROR_UNKNOWN;                                  \
+            goto error;                                             \
+        }                                                           \
+        av_log(NULL, AV_LOG_TRACE, "Loaded sym: %s\n", symbol);     \
+    } while (0)
+
+#define GENERIC_LOAD_FUNC_PREAMBLE(T, n, N)  \
+    T *f;                                    \
+    int ret;                                 \
+                                             \
+    n##_free_functions(functions);           \
+                                             \
+    f = *functions = av_mallocz(sizeof(*f)); \
+    if (!f)                                  \
+        return AVERROR(ENOMEM);              \
+                                             \
+    LOAD_LIBRARY(f->lib, N);
+
+#define GENERIC_LOAD_FUNC_FINALE(n) \
+    return 0;                       \
+error:                              \
+    n##_free_functions(functions);  \
+    return ret;
+
+#define GENERIC_FREE_FUNC()              \
+    if (!functions)                      \
+        return;                          \
+    if (*functions && (*functions)->lib) \
+        dlclose((*functions)->lib);      \
+    av_freep(functions);
+
+#ifdef AV_COMPAT_DYNLINK_CUDA_H
+typedef struct CudaFunctions {
+    tcuInit *cuInit;
+    tcuDeviceGetCount *cuDeviceGetCount;
+    tcuDeviceGet *cuDeviceGet;
+    tcuDeviceGetName *cuDeviceGetName;
+    tcuDeviceComputeCapability *cuDeviceComputeCapability;
+    tcuCtxCreate_v2 *cuCtxCreate;
+    tcuCtxPushCurrent_v2 *cuCtxPushCurrent;
+    tcuCtxPopCurrent_v2 *cuCtxPopCurrent;
+    tcuCtxDestroy_v2 *cuCtxDestroy;
+    tcuMemAlloc_v2 *cuMemAlloc;
+    tcuMemFree_v2 *cuMemFree;
+    tcuMemcpy2D_v2 *cuMemcpy2D;
+    tcuGetErrorName *cuGetErrorName;
+    tcuGetErrorString *cuGetErrorString;
+
+    LIB_HANDLE lib;
+} CudaFunctions;
+#else
+typedef struct CudaFunctions CudaFunctions;
+#endif
+
+typedef struct CuvidFunctions {
+    tcuvidCreateDecoder *cuvidCreateDecoder;
+    tcuvidDestroyDecoder *cuvidDestroyDecoder;
+    tcuvidDecodePicture *cuvidDecodePicture;
+    tcuvidMapVideoFrame *cuvidMapVideoFrame;
+    tcuvidUnmapVideoFrame *cuvidUnmapVideoFrame;
+    tcuvidCtxLockCreate *cuvidCtxLockCreate;
+    tcuvidCtxLockDestroy *cuvidCtxLockDestroy;
+    tcuvidCtxLock *cuvidCtxLock;
+    tcuvidCtxUnlock *cuvidCtxUnlock;
+
+    tcuvidCreateVideoSource *cuvidCreateVideoSource;
+    tcuvidCreateVideoSourceW *cuvidCreateVideoSourceW;
+    tcuvidDestroyVideoSource *cuvidDestroyVideoSource;
+    tcuvidSetVideoSourceState *cuvidSetVideoSourceState;
+    tcuvidGetVideoSourceState *cuvidGetVideoSourceState;
+    tcuvidGetSourceVideoFormat *cuvidGetSourceVideoFormat;
+    tcuvidGetSourceAudioFormat *cuvidGetSourceAudioFormat;
+    tcuvidCreateVideoParser *cuvidCreateVideoParser;
+    tcuvidParseVideoData *cuvidParseVideoData;
+    tcuvidDestroyVideoParser *cuvidDestroyVideoParser;
+
+    LIB_HANDLE lib;
+} CuvidFunctions;
+
+typedef struct NvencFunctions {
+    NVENCSTATUS (NVENCAPI *NvEncodeAPICreateInstance)(NV_ENCODE_API_FUNCTION_LIST *functionList);
+    NVENCSTATUS (NVENCAPI *NvEncodeAPIGetMaxSupportedVersion)(uint32_t* version);
+
+    LIB_HANDLE lib;
+} NvencFunctions;
+
+#ifdef AV_COMPAT_DYNLINK_CUDA_H
+static inline void cuda_free_functions(CudaFunctions **functions)
+{
+    GENERIC_FREE_FUNC();
+}
+#endif
+
+static inline void cuvid_free_functions(CuvidFunctions **functions)
+{
+    GENERIC_FREE_FUNC();
+}
+
+static inline void nvenc_free_functions(NvencFunctions **functions)
+{
+    GENERIC_FREE_FUNC();
+}
+
+#ifdef AV_COMPAT_DYNLINK_CUDA_H
+static inline int cuda_load_functions(CudaFunctions **functions)
+{
+    GENERIC_LOAD_FUNC_PREAMBLE(CudaFunctions, cuda, CUDA_LIBNAME);
+
+    LOAD_SYMBOL(cuInit, "cuInit");
+    LOAD_SYMBOL(cuDeviceGetCount, "cuDeviceGetCount");
+    LOAD_SYMBOL(cuDeviceGet, "cuDeviceGet");
+    LOAD_SYMBOL(cuDeviceGetName, "cuDeviceGetName");
+    LOAD_SYMBOL(cuDeviceComputeCapability, "cuDeviceComputeCapability");
+    LOAD_SYMBOL(cuCtxCreate, "cuCtxCreate_v2");
+    LOAD_SYMBOL(cuCtxPushCurrent, "cuCtxPushCurrent_v2");
+    LOAD_SYMBOL(cuCtxPopCurrent, "cuCtxPopCurrent_v2");
+    LOAD_SYMBOL(cuCtxDestroy, "cuCtxDestroy_v2");
+    LOAD_SYMBOL(cuMemAlloc, "cuMemAlloc_v2");
+    LOAD_SYMBOL(cuMemFree, "cuMemFree_v2");
+    LOAD_SYMBOL(cuMemcpy2D, "cuMemcpy2D_v2");
+    LOAD_SYMBOL(cuGetErrorName, "cuGetErrorName");
+    LOAD_SYMBOL(cuGetErrorString, "cuGetErrorString");
+
+    GENERIC_LOAD_FUNC_FINALE(cuda);
+}
+#endif
+
+static inline int cuvid_load_functions(CuvidFunctions **functions)
+{
+    GENERIC_LOAD_FUNC_PREAMBLE(CuvidFunctions, cuvid, NVCUVID_LIBNAME);
+
+    LOAD_SYMBOL(cuvidCreateDecoder, "cuvidCreateDecoder");
+    LOAD_SYMBOL(cuvidDestroyDecoder, "cuvidDestroyDecoder");
+    LOAD_SYMBOL(cuvidDecodePicture, "cuvidDecodePicture");
+#ifdef __CUVID_DEVPTR64
+    LOAD_SYMBOL(cuvidMapVideoFrame, "cuvidMapVideoFrame64");
+    LOAD_SYMBOL(cuvidUnmapVideoFrame, "cuvidUnmapVideoFrame64");
+#else
+    LOAD_SYMBOL(cuvidMapVideoFrame, "cuvidMapVideoFrame");
+    LOAD_SYMBOL(cuvidUnmapVideoFrame, "cuvidUnmapVideoFrame");
+#endif
+    LOAD_SYMBOL(cuvidCtxLockCreate, "cuvidCtxLockCreate");
+    LOAD_SYMBOL(cuvidCtxLockDestroy, "cuvidCtxLockDestroy");
+    LOAD_SYMBOL(cuvidCtxLock, "cuvidCtxLock");
+    LOAD_SYMBOL(cuvidCtxUnlock, "cuvidCtxUnlock");
+
+    LOAD_SYMBOL(cuvidCreateVideoSource, "cuvidCreateVideoSource");
+    LOAD_SYMBOL(cuvidCreateVideoSourceW, "cuvidCreateVideoSourceW");
+    LOAD_SYMBOL(cuvidDestroyVideoSource, "cuvidDestroyVideoSource");
+    LOAD_SYMBOL(cuvidSetVideoSourceState, "cuvidSetVideoSourceState");
+    LOAD_SYMBOL(cuvidGetVideoSourceState, "cuvidGetVideoSourceState");
+    LOAD_SYMBOL(cuvidGetSourceVideoFormat, "cuvidGetSourceVideoFormat");
+    LOAD_SYMBOL(cuvidGetSourceAudioFormat, "cuvidGetSourceAudioFormat");
+    LOAD_SYMBOL(cuvidCreateVideoParser, "cuvidCreateVideoParser");
+    LOAD_SYMBOL(cuvidParseVideoData, "cuvidParseVideoData");
+    LOAD_SYMBOL(cuvidDestroyVideoParser, "cuvidDestroyVideoParser");
+
+    GENERIC_LOAD_FUNC_FINALE(cuvid);
+}
+
+static inline int nvenc_load_functions(NvencFunctions **functions)
+{
+    GENERIC_LOAD_FUNC_PREAMBLE(NvencFunctions, nvenc, NVENC_LIBNAME);
+
+    LOAD_SYMBOL(NvEncodeAPICreateInstance, "NvEncodeAPICreateInstance");
+    LOAD_SYMBOL(NvEncodeAPIGetMaxSupportedVersion, "NvEncodeAPIGetMaxSupportedVersion");
+
+    GENERIC_LOAD_FUNC_FINALE(nvenc);
+}
+
+#undef GENERIC_LOAD_FUNC_PREAMBLE
+#undef LOAD_LIBRARY
+#undef LOAD_SYMBOL
+#undef GENERIC_LOAD_FUNC_FINALE
+#undef GENERIC_FREE_FUNC
+#undef CUDA_LIBNAME
+#undef NVCUVID_LIBNAME
+#undef NVENC_LIBNAME
+#undef LIB_HANDLE
+
+#endif
+
diff --git a/compat/cuda/dynlink_nvcuvid.h b/compat/cuda/dynlink_nvcuvid.h
new file mode 100644
index 0000000..6c197e0
--- /dev/null
+++ b/compat/cuda/dynlink_nvcuvid.h
@@ -0,0 +1,316 @@
+/*
+ * This copyright notice applies to this header file only:
+ *
+ * Copyright (c) 2010-2016 NVIDIA Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the software, and to permit persons to whom the
+ * software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file nvcuvid.h
+ *   NvCuvid API provides Video Decoding interface to NVIDIA GPU devices.
+ * \date 2015-2015
+ *  This file contains the interface constants, structure definitions and function prototypes.
+ */
+
+#if !defined(__NVCUVID_H__)
+#define __NVCUVID_H__
+
+#include "compat/cuda/dynlink_cuviddec.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus */
+
+////////////////////////////////////////////////////////////////////////////////////////////////
+//
+// High-level helper APIs for video sources
+//
+
+typedef void *CUvideosource;
+typedef void *CUvideoparser;
+typedef long long CUvideotimestamp;
+
+/**
+ * \addtogroup VIDEO_PARSER Video Parser
+ * @{
+ */
+
+/*!
+ * \enum cudaVideoState
+ * Video Source State
+ */
+typedef enum {
+    cudaVideoState_Error   = -1,    /**< Error state (invalid source)  */
+    cudaVideoState_Stopped = 0,     /**< Source is stopped (or reached end-of-stream)  */
+    cudaVideoState_Started = 1      /**< Source is running and delivering data  */
+} cudaVideoState;
+
+/*!
+ * \enum cudaAudioCodec
+ * Audio compression
+ */
+typedef enum {
+    cudaAudioCodec_MPEG1=0,         /**< MPEG-1 Audio  */
+    cudaAudioCodec_MPEG2,           /**< MPEG-2 Audio  */
+    cudaAudioCodec_MP3,             /**< MPEG-1 Layer III Audio  */
+    cudaAudioCodec_AC3,             /**< Dolby Digital (AC3) Audio  */
+    cudaAudioCodec_LPCM             /**< PCM Audio  */
+} cudaAudioCodec;
+
+/*!
+ * \struct CUVIDEOFORMAT
+ * Video format
+ */
+typedef struct
+{
+    cudaVideoCodec codec;                   /**< Compression format  */
+   /**
+    * frame rate = numerator / denominator (for example: 30000/1001)
+    */
+    struct {
+        unsigned int numerator;             /**< frame rate numerator   (0 = unspecified or variable frame rate) */
+        unsigned int denominator;           /**< frame rate denominator (0 = unspecified or variable frame rate) */
+    } frame_rate;
+    unsigned char progressive_sequence;     /**< 0=interlaced, 1=progressive */
+    unsigned char bit_depth_luma_minus8;    /**< high bit depth Luma */
+    unsigned char bit_depth_chroma_minus8;  /**< high bit depth Chroma */
+    unsigned char reserved1;                /**< Reserved for future use */
+    unsigned int coded_width;               /**< coded frame width */
+    unsigned int coded_height;              /**< coded frame height  */
+   /**
+    *   area of the frame that should be displayed
+    * typical example:
+    *   coded_width = 1920, coded_height = 1088
+    *   display_area = { 0,0,1920,1080 }
+    */
+    struct {
+        int left;                           /**< left position of display rect  */
+        int top;                            /**< top position of display rect  */
+        int right;                          /**< right position of display rect  */
+        int bottom;                         /**< bottom position of display rect  */
+    } display_area;
+    cudaVideoChromaFormat chroma_format;    /**<  Chroma format */
+    unsigned int bitrate;                   /**< video bitrate (bps, 0=unknown) */
+   /**
+    * Display Aspect Ratio = x:y (4:3, 16:9, etc)
+    */
+    struct {
+        int x;
+        int y;
+    } display_aspect_ratio;
+    /**
+    * Video Signal Description
+    */
+    struct {
+        unsigned char video_format          : 3;
+        unsigned char video_full_range_flag : 1;
+        unsigned char reserved_zero_bits    : 4;
+        unsigned char color_primaries;
+        unsigned char transfer_characteristics;
+        unsigned char matrix_coefficients;
+    } video_signal_description;
+    unsigned int seqhdr_data_length;          /**< Additional bytes following (CUVIDEOFORMATEX)  */
+} CUVIDEOFORMAT;
+
+/*!
+ * \struct CUVIDEOFORMATEX
+ * Video format including raw sequence header information
+ */
+typedef struct
+{
+    CUVIDEOFORMAT format;
+    unsigned char raw_seqhdr_data[1024];
+} CUVIDEOFORMATEX;
+
+/*!
+ * \struct CUAUDIOFORMAT
+ * Audio Formats
+ */
+typedef struct
+{
+    cudaAudioCodec codec;       /**< Compression format  */
+    unsigned int channels;      /**< number of audio channels */
+    unsigned int samplespersec; /**< sampling frequency */
+    unsigned int bitrate;       /**< For uncompressed, can also be used to determine bits per sample */
+    unsigned int reserved1;     /**< Reserved for future use */
+    unsigned int reserved2;     /**< Reserved for future use */
+} CUAUDIOFORMAT;
+
+
+/*!
+ * \enum CUvideopacketflags
+ * Data packet flags
+ */
+typedef enum {
+    CUVID_PKT_ENDOFSTREAM   = 0x01,   /**< Set when this is the last packet for this stream  */
+    CUVID_PKT_TIMESTAMP     = 0x02,   /**< Timestamp is valid  */
+    CUVID_PKT_DISCONTINUITY = 0x04    /**< Set when a discontinuity has to be signalled  */
+} CUvideopacketflags;
+
+/*!
+ * \struct CUVIDSOURCEDATAPACKET
+ * Data Packet
+ */
+typedef struct _CUVIDSOURCEDATAPACKET
+{
+    unsigned long flags;            /**< Combination of CUVID_PKT_XXX flags */
+    unsigned long payload_size;     /**< number of bytes in the payload (may be zero if EOS flag is set) */
+    const unsigned char *payload;   /**< Pointer to packet payload data (may be NULL if EOS flag is set) */
+    CUvideotimestamp timestamp;     /**< Presentation timestamp (10MHz clock), only valid if CUVID_PKT_TIMESTAMP flag is set */
+} CUVIDSOURCEDATAPACKET;
+
+// Callback for packet delivery
+typedef int (CUDAAPI *PFNVIDSOURCECALLBACK)(void *, CUVIDSOURCEDATAPACKET *);
+
+/*!
+ * \struct CUVIDSOURCEPARAMS
+ * Source Params
+ */
+typedef struct _CUVIDSOURCEPARAMS
+{
+    unsigned int ulClockRate;                   /**< Timestamp units in Hz (0=default=10000000Hz)  */
+    unsigned int uReserved1[7];                 /**< Reserved for future use - set to zero  */
+    void *pUserData;                            /**< Parameter passed in to the data handlers  */
+    PFNVIDSOURCECALLBACK pfnVideoDataHandler;   /**< Called to deliver audio packets  */
+    PFNVIDSOURCECALLBACK pfnAudioDataHandler;   /**< Called to deliver video packets  */
+    void *pvReserved2[8];                       /**< Reserved for future use - set to NULL */
+} CUVIDSOURCEPARAMS;
+
+/*!
+ * \enum CUvideosourceformat_flags
+ * CUvideosourceformat_flags
+ */
+typedef enum {
+    CUVID_FMT_EXTFORMATINFO = 0x100             /**< Return extended format structure (CUVIDEOFORMATEX) */
+} CUvideosourceformat_flags;
+
+#if !defined(__APPLE__)
+/**
+ * \fn CUresult CUDAAPI cuvidCreateVideoSource(CUvideosource *pObj, const char *pszFileName, CUVIDSOURCEPARAMS *pParams)
+ * Create Video Source
+ */
+typedef CUresult CUDAAPI tcuvidCreateVideoSource(CUvideosource *pObj, const char *pszFileName, CUVIDSOURCEPARAMS *pParams);
+
+/**
+ * \fn CUresult CUDAAPI cuvidCreateVideoSourceW(CUvideosource *pObj, const wchar_t *pwszFileName, CUVIDSOURCEPARAMS *pParams)
+ * Create Video Source
+ */
+typedef CUresult CUDAAPI tcuvidCreateVideoSourceW(CUvideosource *pObj, const wchar_t *pwszFileName, CUVIDSOURCEPARAMS *pParams);
+
+/**
+ * \fn CUresult CUDAAPI cuvidDestroyVideoSource(CUvideosource obj)
+ * Destroy Video Source
+ */
+typedef CUresult CUDAAPI tcuvidDestroyVideoSource(CUvideosource obj);
+
+/**
+ * \fn CUresult CUDAAPI cuvidSetVideoSourceState(CUvideosource obj, cudaVideoState state)
+ * Set Video Source state
+ */
+typedef CUresult CUDAAPI tcuvidSetVideoSourceState(CUvideosource obj, cudaVideoState state);
+
+/**
+ * \fn cudaVideoState CUDAAPI cuvidGetVideoSourceState(CUvideosource obj)
+ * Get Video Source state
+ */
+typedef cudaVideoState CUDAAPI tcuvidGetVideoSourceState(CUvideosource obj);
+
+/**
+ * \fn CUresult CUDAAPI cuvidGetSourceVideoFormat(CUvideosource obj, CUVIDEOFORMAT *pvidfmt, unsigned int flags)
+ * Get Video Source Format
+ */
+typedef CUresult CUDAAPI tcuvidGetSourceVideoFormat(CUvideosource obj, CUVIDEOFORMAT *pvidfmt, unsigned int flags);
+
+/**
+ * \fn CUresult CUDAAPI cuvidGetSourceAudioFormat(CUvideosource obj, CUAUDIOFORMAT *paudfmt, unsigned int flags)
+ * Set Video Source state
+ */
+typedef CUresult CUDAAPI tcuvidGetSourceAudioFormat(CUvideosource obj, CUAUDIOFORMAT *paudfmt, unsigned int flags);
+
+#endif
+
+/**
+ * \struct CUVIDPARSERDISPINFO
+ */
+typedef struct _CUVIDPARSERDISPINFO
+{
+    int picture_index;         /**<                 */
+    int progressive_frame;     /**<                 */
+    int top_field_first;       /**<                 */
+    int repeat_first_field;    /**< Number of additional fields (1=ivtc, 2=frame doubling, 4=frame tripling, -1=unpaired field)  */
+    CUvideotimestamp timestamp; /**<     */
+} CUVIDPARSERDISPINFO;
+
+//
+// Parser callbacks
+// The parser will call these synchronously from within cuvidParseVideoData(), whenever a picture is ready to
+// be decoded and/or displayed.
+//
+typedef int (CUDAAPI *PFNVIDSEQUENCECALLBACK)(void *, CUVIDEOFORMAT *);
+typedef int (CUDAAPI *PFNVIDDECODECALLBACK)(void *, CUVIDPICPARAMS *);
+typedef int (CUDAAPI *PFNVIDDISPLAYCALLBACK)(void *, CUVIDPARSERDISPINFO *);
+
+/**
+ * \struct CUVIDPARSERPARAMS
+ */
+typedef struct _CUVIDPARSERPARAMS
+{
+    cudaVideoCodec CodecType;               /**< cudaVideoCodec_XXX  */
+    unsigned int ulMaxNumDecodeSurfaces;    /**< Max # of decode surfaces (parser will cycle through these) */
+    unsigned int ulClockRate;               /**< Timestamp units in Hz (0=default=10000000Hz) */
+    unsigned int ulErrorThreshold;          /**< % Error threshold (0-100) for calling pfnDecodePicture (100=always call pfnDecodePicture even if picture bitstream is fully corrupted) */
+    unsigned int ulMaxDisplayDelay;         /**< Max display queue delay (improves pipelining of decode with display) - 0=no delay (recommended values: 2..4) */
+    unsigned int uReserved1[5];             /**< Reserved for future use - set to 0 */
+    void *pUserData;                        /**< User data for callbacks */
+    PFNVIDSEQUENCECALLBACK pfnSequenceCallback; /**< Called before decoding frames and/or whenever there is a format change */
+    PFNVIDDECODECALLBACK pfnDecodePicture;      /**< Called when a picture is ready to be decoded (decode order) */
+    PFNVIDDISPLAYCALLBACK pfnDisplayPicture;    /**< Called whenever a picture is ready to be displayed (display order)  */
+    void *pvReserved2[7];                       /**< Reserved for future use - set to NULL */
+    CUVIDEOFORMATEX *pExtVideoInfo;             /**< [Optional] sequence header data from system layer */
+} CUVIDPARSERPARAMS;
+
+/**
+ * \fn CUresult CUDAAPI cuvidCreateVideoParser(CUvideoparser *pObj, CUVIDPARSERPARAMS *pParams)
+ */
+typedef CUresult CUDAAPI tcuvidCreateVideoParser(CUvideoparser *pObj, CUVIDPARSERPARAMS *pParams);
+
+/**
+ * \fn CUresult CUDAAPI cuvidParseVideoData(CUvideoparser obj, CUVIDSOURCEDATAPACKET *pPacket)
+ */
+typedef CUresult CUDAAPI tcuvidParseVideoData(CUvideoparser obj, CUVIDSOURCEDATAPACKET *pPacket);
+
+/**
+ * \fn CUresult CUDAAPI cuvidDestroyVideoParser(CUvideoparser obj)
+ */
+typedef CUresult CUDAAPI tcuvidDestroyVideoParser(CUvideoparser obj);
+
+/** @} */  /* END VIDEO_PARSER */
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+#endif // __NVCUVID_H__
+
+