| /* |
| * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| #include <cuda.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "libavutil/avstring.h" |
| #include "libavutil/common.h" |
| #include "libavutil/hwcontext.h" |
| #include "libavutil/hwcontext_cuda_internal.h" |
| #include "libavutil/internal.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| |
| #include "avfilter.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "scale.h" |
| #include "video.h" |
| |
| static const enum AVPixelFormat supported_formats[] = { |
| AV_PIX_FMT_YUV420P, |
| AV_PIX_FMT_NV12, |
| AV_PIX_FMT_YUV444P, |
| AV_PIX_FMT_P010, |
| AV_PIX_FMT_P016 |
| }; |
| |
| #define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) ) |
| #define ALIGN_UP(a, b) (((a) + (b) - 1) & ~((b) - 1)) |
| #define NUM_BUFFERS 2 |
| #define BLOCKX 32 |
| #define BLOCKY 16 |
| |
| typedef struct CUDAScaleContext { |
| const AVClass *class; |
| enum AVPixelFormat in_fmt; |
| enum AVPixelFormat out_fmt; |
| |
| struct { |
| int width; |
| int height; |
| } planes_in[3], planes_out[3]; |
| |
| AVBufferRef *frames_ctx; |
| AVFrame *frame; |
| |
| AVFrame *tmp_frame; |
| int passthrough; |
| |
| /** |
| * Output sw format. AV_PIX_FMT_NONE for no conversion. |
| */ |
| enum AVPixelFormat format; |
| |
| char *w_expr; ///< width expression string |
| char *h_expr; ///< height expression string |
| |
| CUcontext cu_ctx; |
| CUevent cu_event; |
| CUmodule cu_module; |
| CUfunction cu_func_uchar; |
| CUfunction cu_func_uchar2; |
| CUfunction cu_func_uchar4; |
| CUfunction cu_func_ushort; |
| CUfunction cu_func_ushort2; |
| CUfunction cu_func_ushort4; |
| CUtexref cu_tex_uchar; |
| CUtexref cu_tex_uchar2; |
| CUtexref cu_tex_uchar4; |
| CUtexref cu_tex_ushort; |
| CUtexref cu_tex_ushort2; |
| CUtexref cu_tex_ushort4; |
| |
| CUdeviceptr srcBuffer; |
| CUdeviceptr dstBuffer; |
| int tex_alignment; |
| } CUDAScaleContext; |
| |
| static av_cold int cudascale_init(AVFilterContext *ctx) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| |
| s->format = AV_PIX_FMT_NONE; |
| s->frame = av_frame_alloc(); |
| if (!s->frame) |
| return AVERROR(ENOMEM); |
| |
| s->tmp_frame = av_frame_alloc(); |
| if (!s->tmp_frame) |
| return AVERROR(ENOMEM); |
| |
| return 0; |
| } |
| |
| static av_cold void cudascale_uninit(AVFilterContext *ctx) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| |
| av_frame_free(&s->frame); |
| av_buffer_unref(&s->frames_ctx); |
| av_frame_free(&s->tmp_frame); |
| } |
| |
| static int cudascale_query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pixel_formats[] = { |
| AV_PIX_FMT_CUDA, AV_PIX_FMT_NONE, |
| }; |
| AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats); |
| |
| return ff_set_common_formats(ctx, pix_fmts); |
| } |
| |
| static av_cold int init_stage(CUDAScaleContext *s, AVBufferRef *device_ctx) |
| { |
| AVBufferRef *out_ref = NULL; |
| AVHWFramesContext *out_ctx; |
| int in_sw, in_sh, out_sw, out_sh; |
| int ret, i; |
| |
| av_pix_fmt_get_chroma_sub_sample(s->in_fmt, &in_sw, &in_sh); |
| av_pix_fmt_get_chroma_sub_sample(s->out_fmt, &out_sw, &out_sh); |
| if (!s->planes_out[0].width) { |
| s->planes_out[0].width = s->planes_in[0].width; |
| s->planes_out[0].height = s->planes_in[0].height; |
| } |
| |
| for (i = 1; i < FF_ARRAY_ELEMS(s->planes_in); i++) { |
| s->planes_in[i].width = s->planes_in[0].width >> in_sw; |
| s->planes_in[i].height = s->planes_in[0].height >> in_sh; |
| s->planes_out[i].width = s->planes_out[0].width >> out_sw; |
| s->planes_out[i].height = s->planes_out[0].height >> out_sh; |
| } |
| |
| out_ref = av_hwframe_ctx_alloc(device_ctx); |
| if (!out_ref) |
| return AVERROR(ENOMEM); |
| out_ctx = (AVHWFramesContext*)out_ref->data; |
| |
| out_ctx->format = AV_PIX_FMT_CUDA; |
| out_ctx->sw_format = s->out_fmt; |
| out_ctx->width = FFALIGN(s->planes_out[0].width, 32); |
| out_ctx->height = FFALIGN(s->planes_out[0].height, 32); |
| |
| ret = av_hwframe_ctx_init(out_ref); |
| if (ret < 0) |
| goto fail; |
| |
| av_frame_unref(s->frame); |
| ret = av_hwframe_get_buffer(out_ref, s->frame, 0); |
| if (ret < 0) |
| goto fail; |
| |
| s->frame->width = s->planes_out[0].width; |
| s->frame->height = s->planes_out[0].height; |
| |
| av_buffer_unref(&s->frames_ctx); |
| s->frames_ctx = out_ref; |
| |
| return 0; |
| fail: |
| av_buffer_unref(&out_ref); |
| return ret; |
| } |
| |
| static int format_is_supported(enum AVPixelFormat fmt) |
| { |
| int i; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) |
| if (supported_formats[i] == fmt) |
| return 1; |
| return 0; |
| } |
| |
| static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height, |
| int out_width, int out_height) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| |
| AVHWFramesContext *in_frames_ctx; |
| |
| enum AVPixelFormat in_format; |
| enum AVPixelFormat out_format; |
| int ret; |
| |
| /* check that we have a hw context */ |
| if (!ctx->inputs[0]->hw_frames_ctx) { |
| av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n"); |
| return AVERROR(EINVAL); |
| } |
| in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data; |
| in_format = in_frames_ctx->sw_format; |
| out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format; |
| |
| if (!format_is_supported(in_format)) { |
| av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n", |
| av_get_pix_fmt_name(in_format)); |
| return AVERROR(ENOSYS); |
| } |
| if (!format_is_supported(out_format)) { |
| av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n", |
| av_get_pix_fmt_name(out_format)); |
| return AVERROR(ENOSYS); |
| } |
| |
| if (in_width == out_width && in_height == out_height) |
| s->passthrough = 1; |
| |
| s->in_fmt = in_format; |
| s->out_fmt = out_format; |
| |
| s->planes_in[0].width = in_width; |
| s->planes_in[0].height = in_height; |
| s->planes_out[0].width = out_width; |
| s->planes_out[0].height = out_height; |
| |
| ret = init_stage(s, in_frames_ctx->device_ref); |
| if (ret < 0) |
| return ret; |
| |
| ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->frames_ctx); |
| if (!ctx->outputs[0]->hw_frames_ctx) |
| return AVERROR(ENOMEM); |
| |
| return 0; |
| } |
| |
| static av_cold int cudascale_config_props(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| AVFilterLink *inlink = outlink->src->inputs[0]; |
| CUDAScaleContext *s = ctx->priv; |
| AVHWFramesContext *frames_ctx = (AVHWFramesContext*)inlink->hw_frames_ctx->data; |
| AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx; |
| CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx; |
| CUresult err; |
| int w, h; |
| int ret; |
| |
| extern char vf_scale_cuda_ptx[]; |
| |
| err = cuCtxPushCurrent(cuda_ctx); |
| if (err != CUDA_SUCCESS) { |
| av_log(ctx, AV_LOG_ERROR, "Error pushing cuda context\n"); |
| ret = AVERROR_UNKNOWN; |
| goto fail; |
| } |
| |
| err = cuModuleLoadData(&s->cu_module, vf_scale_cuda_ptx); |
| if (err != CUDA_SUCCESS) { |
| av_log(ctx, AV_LOG_ERROR, "Error loading module data\n"); |
| ret = AVERROR_UNKNOWN; |
| goto fail; |
| } |
| |
| cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, "Subsample_Bilinear_uchar"); |
| cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, "Subsample_Bilinear_uchar2"); |
| cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, "Subsample_Bilinear_uchar4"); |
| cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, "Subsample_Bilinear_ushort"); |
| cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, "Subsample_Bilinear_ushort2"); |
| cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, "Subsample_Bilinear_ushort4"); |
| |
| cuModuleGetTexRef(&s->cu_tex_uchar, s->cu_module, "uchar_tex"); |
| cuModuleGetTexRef(&s->cu_tex_uchar2, s->cu_module, "uchar2_tex"); |
| cuModuleGetTexRef(&s->cu_tex_uchar4, s->cu_module, "uchar4_tex"); |
| cuModuleGetTexRef(&s->cu_tex_ushort, s->cu_module, "ushort_tex"); |
| cuModuleGetTexRef(&s->cu_tex_ushort2, s->cu_module, "ushort2_tex"); |
| cuModuleGetTexRef(&s->cu_tex_ushort4, s->cu_module, "ushort4_tex"); |
| |
| cuTexRefSetFlags(s->cu_tex_uchar, CU_TRSF_READ_AS_INTEGER); |
| cuTexRefSetFlags(s->cu_tex_uchar2, CU_TRSF_READ_AS_INTEGER); |
| cuTexRefSetFlags(s->cu_tex_uchar4, CU_TRSF_READ_AS_INTEGER); |
| cuTexRefSetFlags(s->cu_tex_ushort, CU_TRSF_READ_AS_INTEGER); |
| cuTexRefSetFlags(s->cu_tex_ushort2, CU_TRSF_READ_AS_INTEGER); |
| cuTexRefSetFlags(s->cu_tex_ushort4, CU_TRSF_READ_AS_INTEGER); |
| |
| cuTexRefSetFilterMode(s->cu_tex_uchar, CU_TR_FILTER_MODE_LINEAR); |
| cuTexRefSetFilterMode(s->cu_tex_uchar2, CU_TR_FILTER_MODE_LINEAR); |
| cuTexRefSetFilterMode(s->cu_tex_uchar4, CU_TR_FILTER_MODE_LINEAR); |
| cuTexRefSetFilterMode(s->cu_tex_ushort, CU_TR_FILTER_MODE_LINEAR); |
| cuTexRefSetFilterMode(s->cu_tex_ushort2, CU_TR_FILTER_MODE_LINEAR); |
| cuTexRefSetFilterMode(s->cu_tex_ushort4, CU_TR_FILTER_MODE_LINEAR); |
| |
| cuCtxPopCurrent(&dummy); |
| |
| if ((ret = ff_scale_eval_dimensions(s, |
| s->w_expr, s->h_expr, |
| inlink, outlink, |
| &w, &h)) < 0) |
| goto fail; |
| |
| if (((int64_t)h * inlink->w) > INT_MAX || |
| ((int64_t)w * inlink->h) > INT_MAX) |
| av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n"); |
| |
| outlink->w = w; |
| outlink->h = h; |
| |
| ret = init_processing_chain(ctx, inlink->w, inlink->h, w, h); |
| if (ret < 0) |
| return ret; |
| |
| av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n", |
| inlink->w, inlink->h, outlink->w, outlink->h); |
| |
| if (inlink->sample_aspect_ratio.num) { |
| outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w, |
| outlink->w*inlink->h}, |
| inlink->sample_aspect_ratio); |
| } else { |
| outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; |
| } |
| |
| return 0; |
| |
| fail: |
| return ret; |
| } |
| |
| static int call_resize_kernel(CUDAScaleContext *s, CUfunction func, CUtexref tex, int channels, |
| uint8_t *src_dptr, int src_width, int src_height, int src_pitch, |
| uint8_t *dst_dptr, int dst_width, int dst_height, int dst_pitch, |
| int pixel_size) |
| { |
| CUdeviceptr src_devptr = (CUdeviceptr)src_dptr; |
| CUdeviceptr dst_devptr = (CUdeviceptr)dst_dptr; |
| void *args_uchar[] = { &dst_devptr, &dst_width, &dst_height, &dst_pitch, &src_width, &src_height }; |
| CUDA_ARRAY_DESCRIPTOR desc; |
| |
| desc.Width = src_width; |
| desc.Height = src_height; |
| desc.NumChannels = channels; |
| if (pixel_size == 1) { |
| desc.Format = CU_AD_FORMAT_UNSIGNED_INT8; |
| } else { |
| desc.Format = CU_AD_FORMAT_UNSIGNED_INT16; |
| } |
| |
| cuTexRefSetAddress2D_v3(tex, &desc, src_devptr, src_pitch * pixel_size); |
| cuLaunchKernel(func, DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1, BLOCKX, BLOCKY, 1, 0, 0, args_uchar, NULL); |
| |
| return 0; |
| } |
| |
| static int scalecuda_resize(AVFilterContext *ctx, |
| AVFrame *out, AVFrame *in) |
| { |
| AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data; |
| CUDAScaleContext *s = ctx->priv; |
| |
| switch (in_frames_ctx->sw_format) { |
| case AV_PIX_FMT_YUV420P: |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0], in->width, in->height, in->linesize[0], |
| out->data[0], out->width, out->height, out->linesize[0], |
| 1); |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0]+in->linesize[0]*in->height, in->width/2, in->height/2, in->linesize[0]/2, |
| out->data[0]+out->linesize[0]*out->height, out->width/2, out->height/2, out->linesize[0]/2, |
| 1); |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0]+ ALIGN_UP((in->linesize[0]*in->height*5)/4, s->tex_alignment), in->width/2, in->height/2, in->linesize[0]/2, |
| out->data[0]+(out->linesize[0]*out->height*5)/4, out->width/2, out->height/2, out->linesize[0]/2, |
| 1); |
| break; |
| case AV_PIX_FMT_YUV444P: |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0], in->width, in->height, in->linesize[0], |
| out->data[0], out->width, out->height, out->linesize[0], |
| 1); |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0]+in->linesize[0]*in->height, in->width, in->height, in->linesize[0], |
| out->data[0]+out->linesize[0]*out->height, out->width, out->height, out->linesize[0], |
| 1); |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0]+in->linesize[0]*in->height*2, in->width, in->height, in->linesize[0], |
| out->data[0]+out->linesize[0]*out->height*2, out->width, out->height, out->linesize[0], |
| 1); |
| break; |
| case AV_PIX_FMT_NV12: |
| call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1, |
| in->data[0], in->width, in->height, in->linesize[0], |
| out->data[0], out->width, out->height, out->linesize[0], |
| 1); |
| call_resize_kernel(s, s->cu_func_uchar2, s->cu_tex_uchar2, 2, |
| in->data[1], in->width/2, in->height/2, in->linesize[1], |
| out->data[0] + out->linesize[0] * ((out->height + 31) & ~0x1f), out->width/2, out->height/2, out->linesize[1]/2, |
| 1); |
| break; |
| case AV_PIX_FMT_P010LE: |
| call_resize_kernel(s, s->cu_func_ushort, s->cu_tex_ushort, 1, |
| in->data[0], in->width, in->height, in->linesize[0]/2, |
| out->data[0], out->width, out->height, out->linesize[0]/2, |
| 2); |
| call_resize_kernel(s, s->cu_func_ushort2, s->cu_tex_ushort2, 2, |
| in->data[1], in->width / 2, in->height / 2, in->linesize[1]/2, |
| out->data[0] + out->linesize[0] * ((out->height + 31) & ~0x1f), out->width / 2, out->height / 2, out->linesize[1] / 4, |
| 2); |
| break; |
| case AV_PIX_FMT_P016LE: |
| call_resize_kernel(s, s->cu_func_ushort, s->cu_tex_ushort, 1, |
| in->data[0], in->width, in->height, in->linesize[0] / 2, |
| out->data[0], out->width, out->height, out->linesize[0] / 2, |
| 2); |
| call_resize_kernel(s, s->cu_func_ushort2, s->cu_tex_ushort2, 2, |
| in->data[1], in->width / 2, in->height / 2, in->linesize[1] / 2, |
| out->data[0] + out->linesize[0] * ((out->height + 31) & ~0x1f), out->width / 2, out->height / 2, out->linesize[1] / 4, |
| 2); |
| break; |
| default: |
| return AVERROR_BUG; |
| } |
| |
| return 0; |
| } |
| |
| static int cudascale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| AVFrame *src = in; |
| int ret; |
| |
| ret = scalecuda_resize(ctx, s->frame, src); |
| if (ret < 0) |
| return ret; |
| |
| src = s->frame; |
| ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0); |
| if (ret < 0) |
| return ret; |
| |
| av_frame_move_ref(out, s->frame); |
| av_frame_move_ref(s->frame, s->tmp_frame); |
| |
| ret = av_frame_copy_props(out, in); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| } |
| |
| static int cudascale_filter_frame(AVFilterLink *link, AVFrame *in) |
| { |
| AVFilterContext *ctx = link->dst; |
| CUDAScaleContext *s = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| AVHWFramesContext *frames_ctx = (AVHWFramesContext*)s->frames_ctx->data; |
| AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx; |
| |
| AVFrame *out = NULL; |
| CUresult err; |
| CUcontext dummy; |
| int ret = 0; |
| |
| out = av_frame_alloc(); |
| if (!out) { |
| ret = AVERROR(ENOMEM); |
| goto fail; |
| } |
| |
| err = cuCtxPushCurrent(device_hwctx->cuda_ctx); |
| if (err != CUDA_SUCCESS) { |
| ret = AVERROR_UNKNOWN; |
| goto fail; |
| } |
| |
| ret = cudascale_scale(ctx, out, in); |
| |
| cuCtxPopCurrent(&dummy); |
| if (ret < 0) |
| goto fail; |
| |
| av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den, |
| (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w, |
| (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h, |
| INT_MAX); |
| |
| av_frame_free(&in); |
| return ff_filter_frame(outlink, out); |
| fail: |
| av_frame_free(&in); |
| av_frame_free(&out); |
| return ret; |
| } |
| |
| #define OFFSET(x) offsetof(CUDAScaleContext, x) |
| #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM) |
| static const AVOption options[] = { |
| { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS }, |
| { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS }, |
| { NULL }, |
| }; |
| |
| static const AVClass cudascale_class = { |
| .class_name = "cudascale", |
| .item_name = av_default_item_name, |
| .option = options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| static const AVFilterPad cudascale_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = cudascale_filter_frame, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad cudascale_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = cudascale_config_props, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_scale_cuda = { |
| .name = "scale_cuda", |
| .description = NULL_IF_CONFIG_SMALL("GPU accelerated video resizer"), |
| |
| .init = cudascale_init, |
| .uninit = cudascale_uninit, |
| .query_formats = cudascale_query_formats, |
| |
| .priv_size = sizeof(CUDAScaleContext), |
| .priv_class = &cudascale_class, |
| |
| .inputs = cudascale_inputs, |
| .outputs = cudascale_outputs, |
| |
| .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, |
| }; |