mirror of https://git.ffmpeg.org/ffmpeg.git
646 lines
21 KiB
C
646 lines
21 KiB
C
/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <float.h>
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#include <stdio.h>
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#include <string.h>
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#include "libavutil/avstring.h"
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#include "libavutil/common.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_cuda_internal.h"
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#include "libavutil/cuda_check.h"
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#include "libavutil/internal.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "formats.h"
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#include "internal.h"
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#include "scale_eval.h"
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#include "video.h"
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#include "cuda/load_helper.h"
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#include "vf_scale_cuda.h"
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static const enum AVPixelFormat supported_formats[] = {
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AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_NV12,
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AV_PIX_FMT_YUV444P,
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AV_PIX_FMT_P010,
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AV_PIX_FMT_P016,
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AV_PIX_FMT_YUV444P16,
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AV_PIX_FMT_0RGB32,
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AV_PIX_FMT_0BGR32,
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};
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#define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) )
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#define BLOCKX 32
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#define BLOCKY 16
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#define CHECK_CU(x) FF_CUDA_CHECK_DL(ctx, s->hwctx->internal->cuda_dl, x)
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enum {
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INTERP_ALGO_DEFAULT,
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INTERP_ALGO_NEAREST,
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INTERP_ALGO_BILINEAR,
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INTERP_ALGO_BICUBIC,
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INTERP_ALGO_LANCZOS,
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INTERP_ALGO_COUNT
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};
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typedef struct CUDAScaleContext {
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const AVClass *class;
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AVCUDADeviceContext *hwctx;
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enum AVPixelFormat in_fmt, out_fmt;
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const AVPixFmtDescriptor *in_desc, *out_desc;
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int in_planes, out_planes;
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int in_plane_depths[4];
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int in_plane_channels[4];
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AVBufferRef *frames_ctx;
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AVFrame *frame;
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AVFrame *tmp_frame;
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int passthrough;
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/**
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* Output sw format. AV_PIX_FMT_NONE for no conversion.
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*/
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enum AVPixelFormat format;
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char *w_expr; ///< width expression string
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char *h_expr; ///< height expression string
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int force_original_aspect_ratio;
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int force_divisible_by;
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CUcontext cu_ctx;
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CUmodule cu_module;
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CUfunction cu_func;
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CUfunction cu_func_uv;
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CUstream cu_stream;
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int interp_algo;
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int interp_use_linear;
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int interp_as_integer;
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float param;
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} CUDAScaleContext;
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static av_cold int cudascale_init(AVFilterContext *ctx)
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{
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CUDAScaleContext *s = ctx->priv;
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s->frame = av_frame_alloc();
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if (!s->frame)
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return AVERROR(ENOMEM);
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s->tmp_frame = av_frame_alloc();
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if (!s->tmp_frame)
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return AVERROR(ENOMEM);
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return 0;
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}
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static av_cold void cudascale_uninit(AVFilterContext *ctx)
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{
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CUDAScaleContext *s = ctx->priv;
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if (s->hwctx && s->cu_module) {
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CudaFunctions *cu = s->hwctx->internal->cuda_dl;
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CUcontext dummy;
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CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx));
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CHECK_CU(cu->cuModuleUnload(s->cu_module));
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s->cu_module = NULL;
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CHECK_CU(cu->cuCtxPopCurrent(&dummy));
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}
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av_frame_free(&s->frame);
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av_buffer_unref(&s->frames_ctx);
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av_frame_free(&s->tmp_frame);
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}
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static av_cold int init_hwframe_ctx(CUDAScaleContext *s, AVBufferRef *device_ctx, int width, int height)
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{
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AVBufferRef *out_ref = NULL;
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AVHWFramesContext *out_ctx;
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int ret;
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out_ref = av_hwframe_ctx_alloc(device_ctx);
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if (!out_ref)
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return AVERROR(ENOMEM);
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out_ctx = (AVHWFramesContext*)out_ref->data;
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out_ctx->format = AV_PIX_FMT_CUDA;
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out_ctx->sw_format = s->out_fmt;
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out_ctx->width = FFALIGN(width, 32);
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out_ctx->height = FFALIGN(height, 32);
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ret = av_hwframe_ctx_init(out_ref);
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if (ret < 0)
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goto fail;
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av_frame_unref(s->frame);
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ret = av_hwframe_get_buffer(out_ref, s->frame, 0);
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if (ret < 0)
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goto fail;
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s->frame->width = width;
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s->frame->height = height;
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av_buffer_unref(&s->frames_ctx);
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s->frames_ctx = out_ref;
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return 0;
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fail:
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av_buffer_unref(&out_ref);
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return ret;
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}
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static int format_is_supported(enum AVPixelFormat fmt)
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{
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int i;
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for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
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if (supported_formats[i] == fmt)
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return 1;
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return 0;
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}
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static av_cold void set_format_info(AVFilterContext *ctx, enum AVPixelFormat in_format, enum AVPixelFormat out_format)
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{
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CUDAScaleContext *s = ctx->priv;
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int i, p, d;
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s->in_fmt = in_format;
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s->out_fmt = out_format;
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s->in_desc = av_pix_fmt_desc_get(s->in_fmt);
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s->out_desc = av_pix_fmt_desc_get(s->out_fmt);
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s->in_planes = av_pix_fmt_count_planes(s->in_fmt);
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s->out_planes = av_pix_fmt_count_planes(s->out_fmt);
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// find maximum step of each component of each plane
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// For our subset of formats, this should accurately tell us how many channels CUDA needs
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// i.e. 1 for Y plane, 2 for UV plane of NV12, 4 for single plane of RGB0 formats
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for (i = 0; i < s->in_desc->nb_components; i++) {
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d = (s->in_desc->comp[i].depth + 7) / 8;
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p = s->in_desc->comp[i].plane;
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s->in_plane_channels[p] = FFMAX(s->in_plane_channels[p], s->in_desc->comp[i].step / d);
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s->in_plane_depths[p] = s->in_desc->comp[i].depth;
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}
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}
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static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height,
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int out_width, int out_height)
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{
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CUDAScaleContext *s = ctx->priv;
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AVHWFramesContext *in_frames_ctx;
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enum AVPixelFormat in_format;
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enum AVPixelFormat out_format;
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int ret;
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/* check that we have a hw context */
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if (!ctx->inputs[0]->hw_frames_ctx) {
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av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
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return AVERROR(EINVAL);
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}
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in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
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in_format = in_frames_ctx->sw_format;
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out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format;
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if (!format_is_supported(in_format)) {
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av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n",
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av_get_pix_fmt_name(in_format));
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return AVERROR(ENOSYS);
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}
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if (!format_is_supported(out_format)) {
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av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n",
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av_get_pix_fmt_name(out_format));
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return AVERROR(ENOSYS);
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}
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set_format_info(ctx, in_format, out_format);
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if (s->passthrough && in_width == out_width && in_height == out_height && in_format == out_format) {
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s->frames_ctx = av_buffer_ref(ctx->inputs[0]->hw_frames_ctx);
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if (!s->frames_ctx)
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return AVERROR(ENOMEM);
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} else {
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s->passthrough = 0;
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ret = init_hwframe_ctx(s, in_frames_ctx->device_ref, out_width, out_height);
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if (ret < 0)
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return ret;
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if (in_width == out_width && in_height == out_height &&
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in_format == out_format && s->interp_algo == INTERP_ALGO_DEFAULT)
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s->interp_algo = INTERP_ALGO_NEAREST;
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}
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ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->frames_ctx);
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if (!ctx->outputs[0]->hw_frames_ctx)
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return AVERROR(ENOMEM);
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return 0;
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}
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static av_cold int cudascale_load_functions(AVFilterContext *ctx)
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{
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CUDAScaleContext *s = ctx->priv;
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CUcontext dummy, cuda_ctx = s->hwctx->cuda_ctx;
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CudaFunctions *cu = s->hwctx->internal->cuda_dl;
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char buf[128];
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int ret;
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const char *in_fmt_name = av_get_pix_fmt_name(s->in_fmt);
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const char *out_fmt_name = av_get_pix_fmt_name(s->out_fmt);
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const char *function_infix = "";
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extern const unsigned char ff_vf_scale_cuda_ptx_data[];
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extern const unsigned int ff_vf_scale_cuda_ptx_len;
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switch(s->interp_algo) {
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case INTERP_ALGO_NEAREST:
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function_infix = "Nearest";
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s->interp_use_linear = 0;
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s->interp_as_integer = 1;
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break;
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case INTERP_ALGO_BILINEAR:
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function_infix = "Bilinear";
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s->interp_use_linear = 1;
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s->interp_as_integer = 1;
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break;
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case INTERP_ALGO_DEFAULT:
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case INTERP_ALGO_BICUBIC:
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function_infix = "Bicubic";
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s->interp_use_linear = 0;
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s->interp_as_integer = 0;
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break;
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case INTERP_ALGO_LANCZOS:
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function_infix = "Lanczos";
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s->interp_use_linear = 0;
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s->interp_as_integer = 0;
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break;
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default:
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av_log(ctx, AV_LOG_ERROR, "Unknown interpolation algorithm\n");
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return AVERROR_BUG;
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}
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ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
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if (ret < 0)
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return ret;
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ret = ff_cuda_load_module(ctx, s->hwctx, &s->cu_module,
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ff_vf_scale_cuda_ptx_data, ff_vf_scale_cuda_ptx_len);
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if (ret < 0)
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goto fail;
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snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s", function_infix, in_fmt_name, out_fmt_name);
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ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func, s->cu_module, buf));
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if (ret < 0) {
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av_log(ctx, AV_LOG_FATAL, "Unsupported conversion: %s -> %s\n", in_fmt_name, out_fmt_name);
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ret = AVERROR(ENOSYS);
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goto fail;
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}
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snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s_uv", function_infix, in_fmt_name, out_fmt_name);
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ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uv, s->cu_module, buf));
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if (ret < 0)
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goto fail;
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fail:
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CHECK_CU(cu->cuCtxPopCurrent(&dummy));
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return ret;
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}
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static av_cold int cudascale_config_props(AVFilterLink *outlink)
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{
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AVFilterContext *ctx = outlink->src;
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AVFilterLink *inlink = outlink->src->inputs[0];
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CUDAScaleContext *s = ctx->priv;
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AVHWFramesContext *frames_ctx = (AVHWFramesContext*)inlink->hw_frames_ctx->data;
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AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
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int w, h;
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int ret;
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s->hwctx = device_hwctx;
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s->cu_stream = s->hwctx->stream;
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if ((ret = ff_scale_eval_dimensions(s,
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s->w_expr, s->h_expr,
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inlink, outlink,
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&w, &h)) < 0)
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goto fail;
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ff_scale_adjust_dimensions(inlink, &w, &h,
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s->force_original_aspect_ratio, s->force_divisible_by);
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if (((int64_t)h * inlink->w) > INT_MAX ||
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((int64_t)w * inlink->h) > INT_MAX)
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av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
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outlink->w = w;
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outlink->h = h;
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ret = init_processing_chain(ctx, inlink->w, inlink->h, w, h);
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if (ret < 0)
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return ret;
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if (inlink->sample_aspect_ratio.num) {
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outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
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outlink->w*inlink->h},
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inlink->sample_aspect_ratio);
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} else {
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outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
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}
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av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s -> w:%d h:%d fmt:%s%s\n",
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inlink->w, inlink->h, av_get_pix_fmt_name(s->in_fmt),
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outlink->w, outlink->h, av_get_pix_fmt_name(s->out_fmt),
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s->passthrough ? " (passthrough)" : "");
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ret = cudascale_load_functions(ctx);
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if (ret < 0)
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return ret;
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return 0;
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fail:
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return ret;
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}
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static int call_resize_kernel(AVFilterContext *ctx, CUfunction func,
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CUtexObject src_tex[4], int src_width, int src_height,
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AVFrame *out_frame, int dst_width, int dst_height, int dst_pitch)
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{
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CUDAScaleContext *s = ctx->priv;
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CudaFunctions *cu = s->hwctx->internal->cuda_dl;
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CUdeviceptr dst_devptr[4] = {
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(CUdeviceptr)out_frame->data[0], (CUdeviceptr)out_frame->data[1],
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(CUdeviceptr)out_frame->data[2], (CUdeviceptr)out_frame->data[3]
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};
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void *args_uchar[] = {
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&src_tex[0], &src_tex[1], &src_tex[2], &src_tex[3],
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&dst_devptr[0], &dst_devptr[1], &dst_devptr[2], &dst_devptr[3],
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&dst_width, &dst_height, &dst_pitch,
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&src_width, &src_height, &s->param
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};
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return CHECK_CU(cu->cuLaunchKernel(func,
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DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1,
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BLOCKX, BLOCKY, 1, 0, s->cu_stream, args_uchar, NULL));
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}
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static int scalecuda_resize(AVFilterContext *ctx,
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AVFrame *out, AVFrame *in)
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{
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CUDAScaleContext *s = ctx->priv;
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CudaFunctions *cu = s->hwctx->internal->cuda_dl;
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CUcontext dummy, cuda_ctx = s->hwctx->cuda_ctx;
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int i, ret;
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CUtexObject tex[4] = { 0, 0, 0, 0 };
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ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
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if (ret < 0)
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return ret;
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for (i = 0; i < s->in_planes; i++) {
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CUDA_TEXTURE_DESC tex_desc = {
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.filterMode = s->interp_use_linear ?
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CU_TR_FILTER_MODE_LINEAR :
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CU_TR_FILTER_MODE_POINT,
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.flags = s->interp_as_integer ? CU_TRSF_READ_AS_INTEGER : 0,
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};
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CUDA_RESOURCE_DESC res_desc = {
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.resType = CU_RESOURCE_TYPE_PITCH2D,
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.res.pitch2D.format = s->in_plane_depths[i] <= 8 ?
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CU_AD_FORMAT_UNSIGNED_INT8 :
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CU_AD_FORMAT_UNSIGNED_INT16,
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.res.pitch2D.numChannels = s->in_plane_channels[i],
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.res.pitch2D.pitchInBytes = in->linesize[i],
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.res.pitch2D.devPtr = (CUdeviceptr)in->data[i],
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};
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if (i == 1 || i == 2) {
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res_desc.res.pitch2D.width = AV_CEIL_RSHIFT(in->width, s->in_desc->log2_chroma_w);
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res_desc.res.pitch2D.height = AV_CEIL_RSHIFT(in->height, s->in_desc->log2_chroma_h);
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} else {
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res_desc.res.pitch2D.width = in->width;
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res_desc.res.pitch2D.height = in->height;
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}
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ret = CHECK_CU(cu->cuTexObjectCreate(&tex[i], &res_desc, &tex_desc, NULL));
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if (ret < 0)
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goto exit;
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}
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// scale primary plane(s). Usually Y (and A), or single plane of RGB frames.
|
|
ret = call_resize_kernel(ctx, s->cu_func,
|
|
tex, in->width, in->height,
|
|
out, out->width, out->height, out->linesize[0]);
|
|
if (ret < 0)
|
|
goto exit;
|
|
|
|
if (s->out_planes > 1) {
|
|
// scale UV plane. Scale function sets both U and V plane, or singular interleaved plane.
|
|
ret = call_resize_kernel(ctx, s->cu_func_uv, tex,
|
|
AV_CEIL_RSHIFT(in->width, s->in_desc->log2_chroma_w),
|
|
AV_CEIL_RSHIFT(in->height, s->in_desc->log2_chroma_h),
|
|
out,
|
|
AV_CEIL_RSHIFT(out->width, s->out_desc->log2_chroma_w),
|
|
AV_CEIL_RSHIFT(out->height, s->out_desc->log2_chroma_h),
|
|
out->linesize[1]);
|
|
if (ret < 0)
|
|
goto exit;
|
|
}
|
|
|
|
exit:
|
|
for (i = 0; i < s->in_planes; i++)
|
|
if (tex[i])
|
|
CHECK_CU(cu->cuTexObjectDestroy(tex[i]));
|
|
|
|
CHECK_CU(cu->cuCtxPopCurrent(&dummy));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int cudascale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
|
|
{
|
|
CUDAScaleContext *s = ctx->priv;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
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);
|
|
|
|
s->frame->width = outlink->w;
|
|
s->frame->height = outlink->h;
|
|
|
|
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];
|
|
CudaFunctions *cu = s->hwctx->internal->cuda_dl;
|
|
|
|
AVFrame *out = NULL;
|
|
CUcontext dummy;
|
|
int ret = 0;
|
|
|
|
if (s->passthrough)
|
|
return ff_filter_frame(outlink, in);
|
|
|
|
out = av_frame_alloc();
|
|
if (!out) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
ret = CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx));
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
ret = cudascale_scale(ctx, out, in);
|
|
|
|
CHECK_CU(cu->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;
|
|
}
|
|
|
|
static AVFrame *cudascale_get_video_buffer(AVFilterLink *inlink, int w, int h)
|
|
{
|
|
CUDAScaleContext *s = inlink->dst->priv;
|
|
|
|
return s->passthrough ?
|
|
ff_null_get_video_buffer (inlink, w, h) :
|
|
ff_default_get_video_buffer(inlink, w, h);
|
|
}
|
|
|
|
#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 },
|
|
{ "interp_algo", "Interpolation algorithm used for resizing", OFFSET(interp_algo), AV_OPT_TYPE_INT, { .i64 = INTERP_ALGO_DEFAULT }, 0, INTERP_ALGO_COUNT - 1, FLAGS, "interp_algo" },
|
|
{ "nearest", "nearest neighbour", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_NEAREST }, 0, 0, FLAGS, "interp_algo" },
|
|
{ "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_BILINEAR }, 0, 0, FLAGS, "interp_algo" },
|
|
{ "bicubic", "bicubic", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_BICUBIC }, 0, 0, FLAGS, "interp_algo" },
|
|
{ "lanczos", "lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_LANCZOS }, 0, 0, FLAGS, "interp_algo" },
|
|
{ "format", "Output video pixel format", OFFSET(format), AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_NONE }, INT_MIN, INT_MAX, .flags=FLAGS },
|
|
{ "passthrough", "Do not process frames at all if parameters match", OFFSET(passthrough), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
|
|
{ "param", "Algorithm-Specific parameter", OFFSET(param), AV_OPT_TYPE_FLOAT, { .dbl = SCALE_CUDA_PARAM_DEFAULT }, -FLT_MAX, FLT_MAX, FLAGS },
|
|
{ "force_original_aspect_ratio", "decrease or increase w/h if necessary to keep the original AR", OFFSET(force_original_aspect_ratio), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, FLAGS, "force_oar" },
|
|
{ "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, "force_oar" },
|
|
{ "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, "force_oar" },
|
|
{ "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
|
|
{ "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, 256, 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,
|
|
.get_buffer.video = cudascale_get_video_buffer,
|
|
},
|
|
};
|
|
|
|
static const AVFilterPad cudascale_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = cudascale_config_props,
|
|
},
|
|
};
|
|
|
|
const AVFilter ff_vf_scale_cuda = {
|
|
.name = "scale_cuda",
|
|
.description = NULL_IF_CONFIG_SMALL("GPU accelerated video resizer"),
|
|
|
|
.init = cudascale_init,
|
|
.uninit = cudascale_uninit,
|
|
|
|
.priv_size = sizeof(CUDAScaleContext),
|
|
.priv_class = &cudascale_class,
|
|
|
|
FILTER_INPUTS(cudascale_inputs),
|
|
FILTER_OUTPUTS(cudascale_outputs),
|
|
|
|
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_CUDA),
|
|
|
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
|
};
|