[FFmpeg-devel] [PATCH] Add GPU accelerated video crop filter
Steven Liu
lq at chinaffmpeg.org
Sat Mar 23 15:46:58 EET 2019
> 在 2019年3月23日，19:31，UsingtcNower <nowerzt at gmail.com> 写道：
>
> Signed-off-by: UsingtcNower <nowerzt at gmail.com>
> ---
> Changelog | 1 +
> configure | 1 +
> libavfilter/Makefile | 1 +
> libavfilter/allfilters.c | 1 +
> libavfilter/vf_crop_cuda.c | 638 ++++++++++++++++++++++++++++++++++++++++++++
> libavfilter/vf_crop_cuda.cu | 109 ++++++++
> 6 files changed, 751 insertions(+)
> create mode 100644 libavfilter/vf_crop_cuda.c
> create mode 100644 libavfilter/vf_crop_cuda.cu
>
> diff --git a/Changelog b/Changelog
> index ad7e82f..f224fc8 100644
> --- a/Changelog
> +++ b/Changelog
> @@ -20,6 +20,7 @@ version <next>:
> - libaribb24 based ARIB STD-B24 caption support (profiles A and C)
> - Support decoding of HEVC 4:4:4 content in nvdec and cuviddec
> - removed libndi-newtek
> +- crop_cuda GPU accelerated video crop filter
>
>
> version 4.1:
> diff --git a/configure b/configure
> index 331393f..88f1e91 100755
> --- a/configure
> +++ b/configure
> @@ -2978,6 +2978,7 @@ scale_npp_filter_deps="ffnvcodec libnpp"
> scale_cuda_filter_deps="ffnvcodec cuda_nvcc"
> thumbnail_cuda_filter_deps="ffnvcodec cuda_nvcc"
> transpose_npp_filter_deps="ffnvcodec libnpp"
> +crop_cuda_filter_deps="ffnvcodec cuda_nvcc"
>
> amf_deps_any="libdl LoadLibrary"
> nvenc_deps="ffnvcodec"
> diff --git a/libavfilter/Makefile b/libavfilter/Makefile
> index fef6ec5..84df037 100644
> --- a/libavfilter/Makefile
> +++ b/libavfilter/Makefile
> @@ -187,6 +187,7 @@ OBJS-$(CONFIG_COPY_FILTER) += vf_copy.o
> OBJS-$(CONFIG_COREIMAGE_FILTER) += vf_coreimage.o
> OBJS-$(CONFIG_COVER_RECT_FILTER) += vf_cover_rect.o lavfutils.o
> OBJS-$(CONFIG_CROP_FILTER) += vf_crop.o
> +OBJS-$(CONFIG_CROP_CUDA_FILTER) += vf_crop_cuda.o vf_crop_cuda.ptx.o
> OBJS-$(CONFIG_CROPDETECT_FILTER) += vf_cropdetect.o
> OBJS-$(CONFIG_CUE_FILTER) += f_cue.o
> OBJS-$(CONFIG_CURVES_FILTER) += vf_curves.o
> diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
> index c51ae0f..550e545 100644
> --- a/libavfilter/allfilters.c
> +++ b/libavfilter/allfilters.c
> @@ -175,6 +175,7 @@ extern AVFilter ff_vf_copy;
> extern AVFilter ff_vf_coreimage;
> extern AVFilter ff_vf_cover_rect;
> extern AVFilter ff_vf_crop;
> +extern AVFilter ff_vf_crop_cuda;
> extern AVFilter ff_vf_cropdetect;
> extern AVFilter ff_vf_cue;
> extern AVFilter ff_vf_curves;
> diff --git a/libavfilter/vf_crop_cuda.c b/libavfilter/vf_crop_cuda.c
> new file mode 100644
> index 0000000..5a97863
> --- /dev/null
> +++ b/libavfilter/vf_crop_cuda.c
> @@ -0,0 +1,638 @@
> +/*
> +* Copyright (c) 2019, iQIYI 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 <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/cuda_check.h"
> +#include "libavutil/internal.h"
> +#include "libavutil/opt.h"
> +#include "libavutil/pixdesc.h"
> +#include "libavutil/eval.h"
> +
> +#include "avfilter.h"
> +#include "formats.h"
> +#include "internal.h"
> +#include "video.h"
> +
> +static const char *const var_names[] = {
> + "in_w", "iw", ///< width of the input video
> + "in_h", "ih", ///< height of the input video
> + "out_w", "ow", ///< width of the cropped video
> + "out_h", "oh", ///< height of the cropped video
> + "x",
> + "y",
> + NULL
> +};
> +
> +enum var_name {
> + VAR_IN_W, VAR_IW,
> + VAR_IN_H, VAR_IH,
> + VAR_OUT_W, VAR_OW,
> + VAR_OUT_H, VAR_OH,
> + VAR_X,
> + VAR_Y,
> + VAR_VARS_NB
> +};
> +
> +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
> +
> +#define CHECK_CU(x) FF_CUDA_CHECK_DL(ctx, s->hwctx->internal->cuda_dl, x)
> +
> +typedef struct CUDACropContext {
> + const AVClass *class;
> + AVCUDADeviceContext *hwctx;
> + enum AVPixelFormat in_fmt;
> + enum AVPixelFormat out_fmt;
> +
> + struct {
> + int width;
> + int height;
> + int left;
> + int top;
> + } 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;
> +
> + int w,h,x,y;
> + char *w_expr, *h_expr, *x_expr, *y_expr;
> + double var_values[VAR_VARS_NB];
> +
> + CUcontext cu_ctx;
> + 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;
> + CUstream cu_stream;
> +
> + CUdeviceptr srcBuffer;
> + CUdeviceptr dstBuffer;
> + int tex_alignment;
> +} CUDACropContext;
> +
> +static av_cold int cudacrop_init(AVFilterContext *ctx)
> +{
> + CUDACropContext *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 cudacrop_uninit(AVFilterContext *ctx)
> +{
> + CUDACropContext *s = ctx->priv;
> +
> + av_frame_free(&s->frame);
> + av_buffer_unref(&s->frames_ctx);
> + av_frame_free(&s->tmp_frame);
> +}
> +
> +static int cudacrop_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(CUDACropContext *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;
> + s->planes_out[0].left = s->planes_in[0].left;
> + s->planes_out[0].top = s->planes_in[0].top;
> + }
> +
> + 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_in[i].left = s->planes_in[0].left >> in_sw;
> + s->planes_in[i].top = s->planes_in[0].top >> 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;
> + s->planes_out[i].left = 0;
> + s->planes_out[i].top = 0;
> +
> + }
> +
> + 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,
> + int left, int top)
> +{
> + CUDACropContext *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;
> + s->planes_in[0].left = left;
> + s->planes_in[0].top = top;
> + s->planes_out[0].left = 0;
> + s->planes_out[0].top = 0;
> +
> + 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 inline int normalize_double(int *n, double d)
> +{
> + int ret = 0;
> +
> + if (isnan(d))
> + ret = AVERROR(EINVAL);
> + else if (d > INT_MAX || d < INT_MIN) {
> + *n = d > INT_MAX ? INT_MAX : INT_MIN;
> + ret = AVERROR(EINVAL);
> + } else
> + *n = lrint(d);
> +
> + return ret;
> +}
> +
> +static av_cold int cudacrop_config_input(AVFilterLink *inlink)
> +{
> + AVFilterContext *ctx = inlink->dst;
> + CUDACropContext *s = ctx->priv;
> + double res;
> + int ret;
> +
> + s->var_values[VAR_IN_W] = s->var_values[VAR_IW] = inlink->w;
> + s->var_values[VAR_IN_H] = s->var_values[VAR_IH] = inlink->h;
> + s->var_values[VAR_OUT_W] = s->var_values[VAR_OW] = NAN;
> + s->var_values[VAR_OUT_H] = s->var_values[VAR_OH] = NAN;
> + s->var_values[VAR_X] = NAN;
> + s->var_values[VAR_Y] = NAN;
> + if ((ret = av_expr_parse_and_eval(&res, s->w_expr,
> + var_names, s->var_values,
> + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
> + goto fail;
> + s->var_values[VAR_OUT_W] = s->var_values[VAR_OW] = res;
> + if ((ret = av_expr_parse_and_eval(&res, s->h_expr,
> + var_names, s->var_values,
> + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
> + goto fail;
> + s->var_values[VAR_OUT_H] = s->var_values[VAR_OH] = res;
> + if ((ret = av_expr_parse_and_eval(&res, s->x_expr,
> + var_names, s->var_values,
> + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
> + goto fail;
> + s->var_values[VAR_X] = res;
> + if ((ret = av_expr_parse_and_eval(&res, s->y_expr,
> + var_names, s->var_values,
> + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0)
> + goto fail;
> + s->var_values[VAR_Y] = res;
> + if (normalize_double(&s->w, s->var_values[VAR_OW]) < 0 ||
> + normalize_double(&s->h, s->var_values[VAR_OH]) < 0 ||
> + normalize_double(&s->x, s->var_values[VAR_X]) < 0 ||
> + normalize_double(&s->y, s->var_values[VAR_Y]) < 0) {
> + av_log(ctx, AV_LOG_ERROR,
> + "Too big value or invalid expression for out_w/ow or out_h/oh or x or y");
> + return AVERROR(EINVAL);
> + }
> +
> +fail:
> + return ret;
> +}
> +
> +static av_cold int cudacrop_config_output(AVFilterLink *outlink)
> +{
> + AVFilterContext *ctx = outlink->src;
> + AVFilterLink *inlink = outlink->src->inputs[0];
> + CUDACropContext *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;
> + CudaFunctions *cu = device_hwctx->internal->cuda_dl;
> + int ret;
> +
> + extern char vf_crop_cuda_ptx[];
> +
> + s->hwctx = device_hwctx;
> + s->cu_stream = s->hwctx->stream;
> +
> + ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
> + if (ret < 0)
> + goto fail;
> +
> + ret = CHECK_CU(cu->cuModuleLoadData(&s->cu_module, vf_crop_cuda_ptx));
> + if (ret < 0)
> + goto fail;
> +
> + CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, "Crop_uchar"));
> + if (ret < 0)
> + goto fail;
> + CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, "Crop_uchar2"));
> + if (ret < 0)
> + goto fail;
> + CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, "Crop_uchar4"));
> + if (ret < 0)
> + goto fail;
> + CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, "Crop_ushort"));
> + if (ret < 0)
> + goto fail;
> + CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, "Crop_ushort2"));
> + if (ret < 0)
> + goto fail;
> + CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, "Crop_ushort4"));
> + if (ret < 0)
> + goto fail;
> +
> + CHECK_CU(cu->cuCtxPopCurrent(&dummy));
> +
> + outlink->w = s->w;
> + outlink->h = s->h;
> +
> + ret = init_processing_chain(ctx, inlink->w, inlink->h, s->w, s->h, s->x, s->y);
> + if (ret < 0)
> + return ret;
> +
> + 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_crop_kernel(AVFilterContext *ctx, CUfunction func, 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 left, int top, int pixel_size)
> +{
> + CUDACropContext *s = ctx->priv;
> + CudaFunctions *cu = s->hwctx->internal->cuda_dl;
> + CUdeviceptr dst_devptr = (CUdeviceptr)dst_dptr;
> + CUtexObject tex = 0;
> + void *args_uchar[] = { &tex, &dst_devptr, &dst_width, &dst_height, &dst_pitch, &left, &top };
> + int ret;
> +
> + CUDA_TEXTURE_DESC tex_desc = {
> + .filterMode = CU_TR_FILTER_MODE_LINEAR,
> + .flags = CU_TRSF_READ_AS_INTEGER,
> + };
> +
> + CUDA_RESOURCE_DESC res_desc = {
> + .resType = CU_RESOURCE_TYPE_PITCH2D,
> + .res.pitch2D.format = pixel_size == 1 ?
> + CU_AD_FORMAT_UNSIGNED_INT8 :
> + CU_AD_FORMAT_UNSIGNED_INT16,
> + .res.pitch2D.numChannels = channels,
> + .res.pitch2D.width = src_width,
> + .res.pitch2D.height = src_height,
> + .res.pitch2D.pitchInBytes = src_pitch,
> + .res.pitch2D.devPtr = (CUdeviceptr)src_dptr,
> + };
> +
> + ret = CHECK_CU(cu->cuTexObjectCreate(&tex, &res_desc, &tex_desc, NULL));
> + if (ret < 0)
> + goto exit;
> +
> + ret = CHECK_CU(cu->cuLaunchKernel(func, DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1, BLOCKX, BLOCKY, 1, 0, s->cu_stream, args_uchar, NULL));
> +
> +exit:
> + if (tex)
> + CHECK_CU(cu->cuTexObjectDestroy(tex));
> + return ret;
> +}
> +
> +static int cropcuda_crop_internal(AVFilterContext *ctx,
> + AVFrame *out, AVFrame *in)
> +{
> + AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
> + CUDACropContext *s = ctx->priv;
> +
> + switch (in_frames_ctx->sw_format) {
> + case AV_PIX_FMT_YUV420P:
> + call_crop_kernel(ctx, s->cu_func_uchar, 1,
> + in->data[0], in->width, in->height, in->linesize[0],
> + out->data[0], out->width, out->height, out->linesize[0],
> + s->planes_in[0].left, s->planes_in[0].top, 1);
> + call_crop_kernel(ctx, s->cu_func_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,
> + s->planes_in[1].left, s->planes_in[1].top, 1);
> + call_crop_kernel(ctx, s->cu_func_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,
> + s->planes_in[2].left, s->planes_in[2].top, 1);
> + break;
> + case AV_PIX_FMT_YUV444P:
> + call_crop_kernel(ctx, s->cu_func_uchar, 1,
> + in->data[0], in->width, in->height, in->linesize[0],
> + out->data[0], out->width, out->height, out->linesize[0],
> + s->planes_in[0].left, s->planes_in[0].top, 1);
> + call_crop_kernel(ctx, s->cu_func_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],
> + s->planes_in[1].left, s->planes_in[1].top, 1);
> + call_crop_kernel(ctx, s->cu_func_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],
> + s->planes_in[2].left, s->planes_in[2].top, 1);
> + break;
> + case AV_PIX_FMT_NV12:
> + call_crop_kernel(ctx, s->cu_func_uchar, 1,
> + in->data[0], in->width, in->height, in->linesize[0],
> + out->data[0], out->width, out->height, out->linesize[0],
> + s->planes_in[0].left, s->planes_in[0].top, 1);
> + call_crop_kernel(ctx, s->cu_func_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,
> + s->planes_in[1].left, s->planes_in[1].top, 1);
> + break;
> + case AV_PIX_FMT_P010LE:
> + call_crop_kernel(ctx, s->cu_func_ushort, 1,
> + in->data[0], in->width, in->height, in->linesize[0]/2,
> + out->data[0], out->width, out->height, out->linesize[0]/2,
> + s->planes_in[0].left, s->planes_in[0].top, 2);
> + call_crop_kernel(ctx, s->cu_func_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,
> + s->planes_in[1].left, s->planes_in[1].top, 2);
> + break;
> + case AV_PIX_FMT_P016LE:
> + call_crop_kernel(ctx, s->cu_func_ushort, 1,
> + in->data[0], in->width, in->height, in->linesize[0] / 2,
> + out->data[0], out->width, out->height, out->linesize[0] / 2,
> + s->planes_in[0].left, s->planes_in[0].top, 2);
> + call_crop_kernel(ctx, s->cu_func_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,
> + s->planes_in[1].left, s->planes_in[1].top, 2);
> + break;
> + default:
> + return AVERROR_BUG;
> + }
> +
> + return 0;
> +}
> +
> +static int cudacrop_crop(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
> +{
> + CUDACropContext *s = ctx->priv;
> + AVFrame *src = in;
> + int ret;
> +
> + ret = cropcuda_crop_internal(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 cudacrop_filter_frame(AVFilterLink *link, AVFrame *in)
> +{
> + AVFilterContext *ctx = link->dst;
> + CUDACropContext *s = ctx->priv;
> + AVFilterLink *outlink = ctx->outputs[0];
> + CudaFunctions *cu = s->hwctx->internal->cuda_dl;
> +
> + AVFrame *out = NULL;
> + CUcontext dummy;
> + int ret = 0;
> +
> + 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 = cudacrop_crop(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;
> +}
> +
> +#define OFFSET(x) offsetof(CUDACropContext, x)
> +#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
> +static const AVOption options[] = {
> + { "w", "set the width crop area expression", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
> + { "h", "set the height crop area expression", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
> + { "x", "set the x crop area expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, { .str = "(in_w-out_w)/2"}, .flags = FLAGS },
> + { "y", "set the y crop area expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, { .str = "(in_h-out_h)/2"}, .flags = FLAGS },
> + { NULL },
> +};
> +
> +static const AVClass cudacrop_class = {
> + .class_name = "cudacrop",
> + .item_name = av_default_item_name,
> + .option = options,
> + .version = LIBAVUTIL_VERSION_INT,
> +};
> +
> +static const AVFilterPad cudacrop_inputs[] = {
> + {
> + .name = "default",
> + .type = AVMEDIA_TYPE_VIDEO,
> + .filter_frame = cudacrop_filter_frame,
> + .config_props = cudacrop_config_input,
> + },
> + { NULL }
> +};
> +
> +static const AVFilterPad cudacrop_outputs[] = {
> + {
> + .name = "default",
> + .type = AVMEDIA_TYPE_VIDEO,
> + .config_props = cudacrop_config_output,
> + },
> + { NULL }
> +};
> +
> +AVFilter ff_vf_crop_cuda = {
> + .name = "crop_cuda",
> + .description = NULL_IF_CONFIG_SMALL("GPU accelerated video crop"),
> +
> + .init = cudacrop_init,
> + .uninit = cudacrop_uninit,
> + .query_formats = cudacrop_query_formats,
> +
> + .priv_size = sizeof(CUDACropContext),
> + .priv_class = &cudacrop_class,
> +
> + .inputs = cudacrop_inputs,
> + .outputs = cudacrop_outputs,
> +
> + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
> +};
> diff --git a/libavfilter/vf_crop_cuda.cu b/libavfilter/vf_crop_cuda.cu
> new file mode 100644
> index 0000000..4b94b73
> --- /dev/null
> +++ b/libavfilter/vf_crop_cuda.cu
> @@ -0,0 +1,109 @@
> +/*
> + * Copyright (c) 2019, iQIYI 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.
> + */
> +
> +extern "C" {
> +
> +__global__ void Crop_uchar(cudaTextureObject_t uchar_tex,
> + unsigned char *dst,
> + int dst_width, int dst_height, int dst_pitch,
> + int left, int top)
> +{
> + int xo = blockIdx.x * blockDim.x + threadIdx.x;
> + int yo = blockIdx.y * blockDim.y + threadIdx.y;
> + int xi = xo + left;
> + int yi = yo + top;
> +
> + if (yo < dst_height && xo < dst_width)
> + dst[yo*dst_pitch+xo] = (unsigned char) tex2D<unsigned char>(uchar_tex, xi, yi);
> +}
> +
> +__global__ void Crop_uchar2(cudaTextureObject_t uchar2_tex,
> + uchar2 *dst,
> + int dst_width, int dst_height, int dst_pitch,
> + int left, int top)
> +{
> + int xo = blockIdx.x * blockDim.x + threadIdx.x;
> + int yo = blockIdx.y * blockDim.y + threadIdx.y;
> + int xi = xo + left;
> + int yi = yo + top;
> +
> + if (yo < dst_height && xo < dst_width)
> + dst[yo*dst_pitch+xo] = (uchar2) tex2D<uchar2>(uchar2_tex, xi, yi);
> +}
> +
> +__global__ void Crop_uchar4(cudaTextureObject_t uchar4_tex,
> + uchar4 *dst,
> + int dst_width, int dst_height, int dst_pitch,
> + int left, int top)
> +{
> + int xo = blockIdx.x * blockDim.x + threadIdx.x;
> + int yo = blockIdx.y * blockDim.y + threadIdx.y;
> + int xi = xo + left;
> + int yi = yo + top;
> +
> + if (yo < dst_height && xo < dst_width)
> + dst[yo*dst_pitch+xo] = (uchar4) tex2D<uchar4>(uchar4_tex, xi, yi);
> +}
> +
> +__global__ void Crop_ushort(cudaTextureObject_t ushort_tex,
> + unsigned short *dst,
> + int dst_width, int dst_height, int dst_pitch,
> + int left, int top)
> +{
> + int xo = blockIdx.x * blockDim.x + threadIdx.x;
> + int yo = blockIdx.y * blockDim.y + threadIdx.y;
> + int xi = xo + left;
> + int yi = yo + top;
> +
> + if (yo < dst_height && xo < dst_width)
> + dst[yo*dst_pitch+xo] = (unsigned short) tex2D<unsigned short>(ushort_tex, xi, yi);
> +}
> +
> +__global__ void Crop_ushort2(cudaTextureObject_t ushort2_tex,
> + ushort2 *dst,
> + int dst_width, int dst_height, int dst_pitch,
> + int left, int top)
> +{
> + int xo = blockIdx.x * blockDim.x + threadIdx.x;
> + int yo = blockIdx.y * blockDim.y + threadIdx.y;
> + int xi = xo + left;
> + int yi = yo + top;
> +
> + if (yo < dst_height && xo < dst_width)
> + dst[yo*dst_pitch+xo] = (ushort2) tex2D<ushort2>(ushort2_tex, xi, yi);
> +}
> +
> +__global__ void Crop_ushort4(cudaTextureObject_t ushort4_tex,
> + ushort4 *dst,
> + int dst_width, int dst_height, int dst_pitch,
> + int left, int top)
> +{
> + int xo = blockIdx.x * blockDim.x + threadIdx.x;
> + int yo = blockIdx.y * blockDim.y + threadIdx.y;
> + int xi = xo + left;
> + int yi = yo + top;
> +
> + if (yo < dst_height && xo < dst_width)
> + dst[yo*dst_pitch+xo] = (ushort4) tex2D<ushort4>(ushort4_tex, xi, yi);
> +}
> +
> +}
> --
> 1.8.3.1
>
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Documentation of the crop_cuda should be submitted together.
Thanks
Steven
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