| /* |
| * 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 <float.h> |
| #include <stdio.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 "avfilter.h" |
| #include "internal.h" |
| #include "scale_eval.h" |
| #include "video.h" |
| |
| #include "cuda/load_helper.h" |
| #include "vf_scale_cuda.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, |
| AV_PIX_FMT_YUV444P16, |
| AV_PIX_FMT_0RGB32, |
| AV_PIX_FMT_0BGR32, |
| AV_PIX_FMT_RGB32, |
| AV_PIX_FMT_BGR32, |
| }; |
| |
| #define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) ) |
| #define BLOCKX 32 |
| #define BLOCKY 16 |
| |
| #define CHECK_CU(x) FF_CUDA_CHECK_DL(ctx, s->hwctx->internal->cuda_dl, x) |
| |
| enum { |
| INTERP_ALGO_DEFAULT, |
| |
| INTERP_ALGO_NEAREST, |
| INTERP_ALGO_BILINEAR, |
| INTERP_ALGO_BICUBIC, |
| INTERP_ALGO_LANCZOS, |
| |
| INTERP_ALGO_COUNT |
| }; |
| |
| typedef struct CUDAScaleContext { |
| const AVClass *class; |
| |
| AVCUDADeviceContext *hwctx; |
| |
| enum AVPixelFormat in_fmt, out_fmt; |
| const AVPixFmtDescriptor *in_desc, *out_desc; |
| int in_planes, out_planes; |
| int in_plane_depths[4]; |
| int in_plane_channels[4]; |
| |
| 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 |
| |
| int force_original_aspect_ratio; |
| int force_divisible_by; |
| |
| CUcontext cu_ctx; |
| CUmodule cu_module; |
| CUfunction cu_func; |
| CUfunction cu_func_uv; |
| CUstream cu_stream; |
| |
| int interp_algo; |
| int interp_use_linear; |
| int interp_as_integer; |
| |
| float param; |
| } CUDAScaleContext; |
| |
| static av_cold int cudascale_init(AVFilterContext *ctx) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| |
| 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; |
| |
| if (s->hwctx && s->cu_module) { |
| CudaFunctions *cu = s->hwctx->internal->cuda_dl; |
| CUcontext dummy; |
| |
| CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx)); |
| CHECK_CU(cu->cuModuleUnload(s->cu_module)); |
| s->cu_module = NULL; |
| CHECK_CU(cu->cuCtxPopCurrent(&dummy)); |
| } |
| |
| av_frame_free(&s->frame); |
| av_buffer_unref(&s->frames_ctx); |
| av_frame_free(&s->tmp_frame); |
| } |
| |
| static av_cold int init_hwframe_ctx(CUDAScaleContext *s, AVBufferRef *device_ctx, int width, int height) |
| { |
| AVBufferRef *out_ref = NULL; |
| AVHWFramesContext *out_ctx; |
| int ret; |
| |
| 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(width, 32); |
| out_ctx->height = FFALIGN(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 = width; |
| s->frame->height = 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 void set_format_info(AVFilterContext *ctx, enum AVPixelFormat in_format, enum AVPixelFormat out_format) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| int i, p, d; |
| |
| s->in_fmt = in_format; |
| s->out_fmt = out_format; |
| |
| s->in_desc = av_pix_fmt_desc_get(s->in_fmt); |
| s->out_desc = av_pix_fmt_desc_get(s->out_fmt); |
| s->in_planes = av_pix_fmt_count_planes(s->in_fmt); |
| s->out_planes = av_pix_fmt_count_planes(s->out_fmt); |
| |
| // find maximum step of each component of each plane |
| // For our subset of formats, this should accurately tell us how many channels CUDA needs |
| // i.e. 1 for Y plane, 2 for UV plane of NV12, 4 for single plane of RGB0 formats |
| |
| for (i = 0; i < s->in_desc->nb_components; i++) { |
| d = (s->in_desc->comp[i].depth + 7) / 8; |
| p = s->in_desc->comp[i].plane; |
| s->in_plane_channels[p] = FFMAX(s->in_plane_channels[p], s->in_desc->comp[i].step / d); |
| |
| s->in_plane_depths[p] = s->in_desc->comp[i].depth; |
| } |
| } |
| |
| 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); |
| } |
| |
| set_format_info(ctx, in_format, out_format); |
| |
| if (s->passthrough && in_width == out_width && in_height == out_height && in_format == out_format) { |
| s->frames_ctx = av_buffer_ref(ctx->inputs[0]->hw_frames_ctx); |
| if (!s->frames_ctx) |
| return AVERROR(ENOMEM); |
| } else { |
| s->passthrough = 0; |
| |
| ret = init_hwframe_ctx(s, in_frames_ctx->device_ref, out_width, out_height); |
| if (ret < 0) |
| return ret; |
| |
| if (in_width == out_width && in_height == out_height && |
| in_format == out_format && s->interp_algo == INTERP_ALGO_DEFAULT) |
| s->interp_algo = INTERP_ALGO_NEAREST; |
| } |
| |
| 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_load_functions(AVFilterContext *ctx) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| CUcontext dummy, cuda_ctx = s->hwctx->cuda_ctx; |
| CudaFunctions *cu = s->hwctx->internal->cuda_dl; |
| char buf[128]; |
| int ret; |
| |
| const char *in_fmt_name = av_get_pix_fmt_name(s->in_fmt); |
| const char *out_fmt_name = av_get_pix_fmt_name(s->out_fmt); |
| |
| const char *function_infix = ""; |
| |
| extern const unsigned char ff_vf_scale_cuda_ptx_data[]; |
| extern const unsigned int ff_vf_scale_cuda_ptx_len; |
| |
| switch(s->interp_algo) { |
| case INTERP_ALGO_NEAREST: |
| function_infix = "Nearest"; |
| s->interp_use_linear = 0; |
| s->interp_as_integer = 1; |
| break; |
| case INTERP_ALGO_BILINEAR: |
| function_infix = "Bilinear"; |
| s->interp_use_linear = 1; |
| s->interp_as_integer = 1; |
| break; |
| case INTERP_ALGO_DEFAULT: |
| case INTERP_ALGO_BICUBIC: |
| function_infix = "Bicubic"; |
| s->interp_use_linear = 0; |
| s->interp_as_integer = 0; |
| break; |
| case INTERP_ALGO_LANCZOS: |
| function_infix = "Lanczos"; |
| s->interp_use_linear = 0; |
| s->interp_as_integer = 0; |
| break; |
| default: |
| av_log(ctx, AV_LOG_ERROR, "Unknown interpolation algorithm\n"); |
| return AVERROR_BUG; |
| } |
| |
| ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx)); |
| if (ret < 0) |
| return ret; |
| |
| ret = ff_cuda_load_module(ctx, s->hwctx, &s->cu_module, |
| ff_vf_scale_cuda_ptx_data, ff_vf_scale_cuda_ptx_len); |
| if (ret < 0) |
| goto fail; |
| |
| snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s", function_infix, in_fmt_name, out_fmt_name); |
| ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func, s->cu_module, buf)); |
| if (ret < 0) { |
| av_log(ctx, AV_LOG_FATAL, "Unsupported conversion: %s -> %s\n", in_fmt_name, out_fmt_name); |
| ret = AVERROR(ENOSYS); |
| goto fail; |
| } |
| |
| snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s_uv", function_infix, in_fmt_name, out_fmt_name); |
| ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uv, s->cu_module, buf)); |
| if (ret < 0) |
| goto fail; |
| |
| fail: |
| CHECK_CU(cu->cuCtxPopCurrent(&dummy)); |
| |
| return ret; |
| } |
| |
| 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; |
| int w, h; |
| int ret; |
| |
| s->hwctx = device_hwctx; |
| s->cu_stream = s->hwctx->stream; |
| |
| if ((ret = ff_scale_eval_dimensions(s, |
| s->w_expr, s->h_expr, |
| inlink, outlink, |
| &w, &h)) < 0) |
| goto fail; |
| |
| ff_scale_adjust_dimensions(inlink, &w, &h, |
| s->force_original_aspect_ratio, s->force_divisible_by); |
| |
| 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; |
| |
| 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; |
| } |
| |
| av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s -> w:%d h:%d fmt:%s%s\n", |
| inlink->w, inlink->h, av_get_pix_fmt_name(s->in_fmt), |
| outlink->w, outlink->h, av_get_pix_fmt_name(s->out_fmt), |
| s->passthrough ? " (passthrough)" : ""); |
| |
| ret = cudascale_load_functions(ctx); |
| if (ret < 0) |
| return ret; |
| |
| return 0; |
| |
| fail: |
| return ret; |
| } |
| |
| static int call_resize_kernel(AVFilterContext *ctx, CUfunction func, |
| CUtexObject src_tex[4], int src_width, int src_height, |
| AVFrame *out_frame, int dst_width, int dst_height, int dst_pitch) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| CudaFunctions *cu = s->hwctx->internal->cuda_dl; |
| |
| CUdeviceptr dst_devptr[4] = { |
| (CUdeviceptr)out_frame->data[0], (CUdeviceptr)out_frame->data[1], |
| (CUdeviceptr)out_frame->data[2], (CUdeviceptr)out_frame->data[3] |
| }; |
| |
| void *args_uchar[] = { |
| &src_tex[0], &src_tex[1], &src_tex[2], &src_tex[3], |
| &dst_devptr[0], &dst_devptr[1], &dst_devptr[2], &dst_devptr[3], |
| &dst_width, &dst_height, &dst_pitch, |
| &src_width, &src_height, &s->param |
| }; |
| |
| return 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)); |
| } |
| |
| static int scalecuda_resize(AVFilterContext *ctx, |
| AVFrame *out, AVFrame *in) |
| { |
| CUDAScaleContext *s = ctx->priv; |
| CudaFunctions *cu = s->hwctx->internal->cuda_dl; |
| CUcontext dummy, cuda_ctx = s->hwctx->cuda_ctx; |
| int i, ret; |
| |
| CUtexObject tex[4] = { 0, 0, 0, 0 }; |
| |
| ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx)); |
| if (ret < 0) |
| return ret; |
| |
| for (i = 0; i < s->in_planes; i++) { |
| CUDA_TEXTURE_DESC tex_desc = { |
| .filterMode = s->interp_use_linear ? |
| CU_TR_FILTER_MODE_LINEAR : |
| CU_TR_FILTER_MODE_POINT, |
| .flags = s->interp_as_integer ? CU_TRSF_READ_AS_INTEGER : 0, |
| }; |
| |
| CUDA_RESOURCE_DESC res_desc = { |
| .resType = CU_RESOURCE_TYPE_PITCH2D, |
| .res.pitch2D.format = s->in_plane_depths[i] <= 8 ? |
| CU_AD_FORMAT_UNSIGNED_INT8 : |
| CU_AD_FORMAT_UNSIGNED_INT16, |
| .res.pitch2D.numChannels = s->in_plane_channels[i], |
| .res.pitch2D.pitchInBytes = in->linesize[i], |
| .res.pitch2D.devPtr = (CUdeviceptr)in->data[i], |
| }; |
| |
| if (i == 1 || i == 2) { |
| res_desc.res.pitch2D.width = AV_CEIL_RSHIFT(in->width, s->in_desc->log2_chroma_w); |
| res_desc.res.pitch2D.height = AV_CEIL_RSHIFT(in->height, s->in_desc->log2_chroma_h); |
| } else { |
| res_desc.res.pitch2D.width = in->width; |
| res_desc.res.pitch2D.height = in->height; |
| } |
| |
| ret = CHECK_CU(cu->cuTexObjectCreate(&tex[i], &res_desc, &tex_desc, NULL)); |
| if (ret < 0) |
| goto exit; |
| } |
| |
| // 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, .unit = "interp_algo" }, |
| { "nearest", "nearest neighbour", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_NEAREST }, 0, 0, FLAGS, .unit = "interp_algo" }, |
| { "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_BILINEAR }, 0, 0, FLAGS, .unit = "interp_algo" }, |
| { "bicubic", "bicubic", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_BICUBIC }, 0, 0, FLAGS, .unit = "interp_algo" }, |
| { "lanczos", "lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_LANCZOS }, 0, 0, FLAGS, .unit = "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, .unit = "force_oar" }, |
| { "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, .unit = "force_oar" }, |
| { "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, .unit = "force_oar" }, |
| { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, .unit = "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, |
| }; |