From 8a02a8031ef4f98faf5647f0e01a8922247bf748 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sun, 17 Jan 2016 15:02:17 +0100 Subject: lavfi: add an NVIDIA NPP-based scaling filter --- libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/version.h | 2 +- libavfilter/vf_scale_npp.c | 660 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 663 insertions(+), 1 deletion(-) create mode 100644 libavfilter/vf_scale_npp.c (limited to 'libavfilter') diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 0f9643d9f5..39e167faab 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -71,6 +71,7 @@ OBJS-$(CONFIG_OVERLAY_FILTER) += vf_overlay.o OBJS-$(CONFIG_PAD_FILTER) += vf_pad.o OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o OBJS-$(CONFIG_SCALE_FILTER) += vf_scale.o +OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o OBJS-$(CONFIG_SELECT_FILTER) += vf_select.o OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index d76db06f2a..c6eeb1f4e4 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -97,6 +97,7 @@ void avfilter_register_all(void) REGISTER_FILTER(PAD, pad, vf); REGISTER_FILTER(PIXDESCTEST, pixdesctest, vf); REGISTER_FILTER(SCALE, scale, vf); + REGISTER_FILTER(SCALE_NPP, scale_npp, vf); REGISTER_FILTER(SCALE_VAAPI, scale_vaapi, vf); REGISTER_FILTER(SELECT, select, vf); REGISTER_FILTER(SETDAR, setdar, vf); diff --git a/libavfilter/version.h b/libavfilter/version.h index 1ca0f37a6a..c8102dd7d0 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -30,7 +30,7 @@ #include "libavutil/version.h" #define LIBAVFILTER_VERSION_MAJOR 6 -#define LIBAVFILTER_VERSION_MINOR 3 +#define LIBAVFILTER_VERSION_MINOR 4 #define LIBAVFILTER_VERSION_MICRO 0 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vf_scale_npp.c b/libavfilter/vf_scale_npp.c new file mode 100644 index 0000000000..247baf1133 --- /dev/null +++ b/libavfilter/vf_scale_npp.c @@ -0,0 +1,660 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * scale video filter + */ + +#include +#include +#include + +#include "libavutil/avstring.h" +#include "libavutil/common.h" +#include "libavutil/eval.h" +#include "libavutil/hwcontext.h" +#include "libavutil/hwcontext_cuda.h" +#include "libavutil/internal.h" +#include "libavutil/mathematics.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" + +#include "avfilter.h" +#include "formats.h" +#include "internal.h" +#include "video.h" + +static const enum AVPixelFormat supported_formats[] = { + AV_PIX_FMT_YUV420P, + AV_PIX_FMT_NV12, + AV_PIX_FMT_YUV444P, +}; + +static const enum AVPixelFormat deinterleaved_formats[][2] = { + { AV_PIX_FMT_NV12, AV_PIX_FMT_YUV420P }, +}; + +static const char *const var_names[] = { + "PI", + "PHI", + "E", + "in_w", "iw", + "in_h", "ih", + "out_w", "ow", + "out_h", "oh", + "a", "dar", + "sar", + NULL +}; + +enum var_name { + VAR_PI, + VAR_PHI, + VAR_E, + VAR_IN_W, VAR_IW, + VAR_IN_H, VAR_IH, + VAR_OUT_W, VAR_OW, + VAR_OUT_H, VAR_OH, + VAR_A, VAR_DAR, + VAR_SAR, + VARS_NB +}; + +enum ScaleStage { + STAGE_DEINTERLEAVE, + STAGE_RESIZE, + STAGE_INTERLEAVE, + STAGE_NB, +}; + +typedef struct NPPScaleStageContext { + int stage_needed; + enum AVPixelFormat in_fmt; + enum AVPixelFormat out_fmt; + + struct { + int width; + int height; + } planes_in[3], planes_out[3]; + + AVBufferRef *frames_ctx; + AVFrame *frame; +} NPPScaleStageContext; + +typedef struct NPPScaleContext { + const AVClass *class; + + NPPScaleStageContext stages[STAGE_NB]; + AVFrame *tmp_frame; + int passthrough; + + int shift_width, shift_height; + + /** + * New dimensions. Special values are: + * 0 = original width/height + * -1 = keep original aspect + */ + int w, h; + + /** + * 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 + char *format_str; + + int interp_algo; +} NPPScaleContext; + +static int nppscale_init(AVFilterContext *ctx) +{ + NPPScaleContext *s = ctx->priv; + int i; + + if (!strcmp(s->format_str, "same")) { + s->format = AV_PIX_FMT_NONE; + } else { + s->format = av_get_pix_fmt(s->format_str); + if (s->format == AV_PIX_FMT_NONE) { + av_log(ctx, AV_LOG_ERROR, "Unrecognized pixel format: %s\n", s->format_str); + return AVERROR(EINVAL); + } + } + + for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { + s->stages[i].frame = av_frame_alloc(); + if (!s->stages[i].frame) + return AVERROR(ENOMEM); + } + s->tmp_frame = av_frame_alloc(); + if (!s->tmp_frame) + return AVERROR(ENOMEM); + + return 0; +} + +static void nppscale_uninit(AVFilterContext *ctx) +{ + NPPScaleContext *s = ctx->priv; + int i; + + for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { + av_frame_free(&s->stages[i].frame); + av_buffer_unref(&s->stages[i].frames_ctx); + } + av_frame_free(&s->tmp_frame); +} + +static int nppscale_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); + + ff_set_common_formats(ctx, pix_fmts); + + return 0; +} + +static int init_stage(NPPScaleStageContext *stage, 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(stage->in_fmt, &in_sw, &in_sh); + av_pix_fmt_get_chroma_sub_sample(stage->out_fmt, &out_sw, &out_sh); + if (!stage->planes_out[0].width) { + stage->planes_out[0].width = stage->planes_in[0].width; + stage->planes_out[0].height = stage->planes_in[0].height; + } + + for (i = 1; i < FF_ARRAY_ELEMS(stage->planes_in); i++) { + stage->planes_in[i].width = stage->planes_in[0].width >> in_sw; + stage->planes_in[i].height = stage->planes_in[0].height >> in_sh; + stage->planes_out[i].width = stage->planes_out[0].width >> out_sw; + stage->planes_out[i].height = stage->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 = stage->out_fmt; + out_ctx->width = FFALIGN(stage->planes_out[0].width, 32); + out_ctx->height = FFALIGN(stage->planes_out[0].height, 32); + + ret = av_hwframe_ctx_init(out_ref); + if (ret < 0) + goto fail; + + av_frame_unref(stage->frame); + ret = av_hwframe_get_buffer(out_ref, stage->frame, 0); + if (ret < 0) + goto fail; + + stage->frame->width = stage->planes_out[0].width; + stage->frame->height = stage->planes_out[0].height; + + av_buffer_unref(&stage->frames_ctx); + stage->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 enum AVPixelFormat get_deinterleaved_format(enum AVPixelFormat fmt) +{ + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); + int i, planes; + + planes = av_pix_fmt_count_planes(fmt); + if (planes == desc->nb_components) + return fmt; + for (i = 0; i < FF_ARRAY_ELEMS(deinterleaved_formats); i++) + if (deinterleaved_formats[i][0] == fmt) + return deinterleaved_formats[i][1]; + return AV_PIX_FMT_NONE; +} + +static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height, + int out_width, int out_height) +{ + NPPScaleContext *s = ctx->priv; + + AVHWFramesContext *in_frames_ctx; + + enum AVPixelFormat in_format; + enum AVPixelFormat out_format; + enum AVPixelFormat in_deinterleaved_format; + enum AVPixelFormat out_deinterleaved_format; + + int i, ret, last_stage = -1; + + /* 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); + } + + in_deinterleaved_format = get_deinterleaved_format(in_format); + out_deinterleaved_format = get_deinterleaved_format(out_format); + if (in_deinterleaved_format == AV_PIX_FMT_NONE || + out_deinterleaved_format == AV_PIX_FMT_NONE) + return AVERROR_BUG; + + /* figure out which stages need to be done */ + if (in_width != out_width || in_height != out_height || + in_deinterleaved_format != out_deinterleaved_format) + s->stages[STAGE_RESIZE].stage_needed = 1; + + if (!s->stages[STAGE_RESIZE].stage_needed && in_format == out_format) + s->passthrough = 1; + + if (!s->passthrough) { + if (in_format != in_deinterleaved_format) + s->stages[STAGE_DEINTERLEAVE].stage_needed = 1; + if (out_format != out_deinterleaved_format) + s->stages[STAGE_INTERLEAVE].stage_needed = 1; + } + + s->stages[STAGE_DEINTERLEAVE].in_fmt = in_format; + s->stages[STAGE_DEINTERLEAVE].out_fmt = in_deinterleaved_format; + s->stages[STAGE_DEINTERLEAVE].planes_in[0].width = in_width; + s->stages[STAGE_DEINTERLEAVE].planes_in[0].height = in_height; + + s->stages[STAGE_RESIZE].in_fmt = in_deinterleaved_format; + s->stages[STAGE_RESIZE].out_fmt = out_deinterleaved_format; + s->stages[STAGE_RESIZE].planes_in[0].width = in_width; + s->stages[STAGE_RESIZE].planes_in[0].height = in_height; + s->stages[STAGE_RESIZE].planes_out[0].width = out_width; + s->stages[STAGE_RESIZE].planes_out[0].height = out_height; + + s->stages[STAGE_INTERLEAVE].in_fmt = out_deinterleaved_format; + s->stages[STAGE_INTERLEAVE].out_fmt = out_format; + s->stages[STAGE_INTERLEAVE].planes_in[0].width = out_width; + s->stages[STAGE_INTERLEAVE].planes_in[0].height = out_height; + + /* init the hardware contexts */ + for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { + if (!s->stages[i].stage_needed) + continue; + + ret = init_stage(&s->stages[i], in_frames_ctx->device_ref); + if (ret < 0) + return ret; + + last_stage = i; + } + + if (last_stage < 0) + return AVERROR_BUG; + ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage].frames_ctx); + if (!ctx->outputs[0]->hw_frames_ctx) + return AVERROR(ENOMEM); + + return 0; +} + +static int nppscale_config_props(AVFilterLink *outlink) +{ + AVFilterContext *ctx = outlink->src; + AVFilterLink *inlink = outlink->src->inputs[0]; + NPPScaleContext *s = ctx->priv; + int64_t w, h; + double var_values[VARS_NB], res; + char *expr; + int ret; + + var_values[VAR_PI] = M_PI; + var_values[VAR_PHI] = M_PHI; + var_values[VAR_E] = M_E; + var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w; + var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h; + var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN; + var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN; + var_values[VAR_A] = (double) inlink->w / inlink->h; + var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? + (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1; + var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR]; + + /* evaluate width and height */ + av_expr_parse_and_eval(&res, (expr = s->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx); + s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + goto fail; + s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; + /* evaluate again the width, as it may depend on the output height */ + if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + goto fail; + s->w = res; + + w = s->w; + h = s->h; + + /* sanity check params */ + if (w < -1 || h < -1) { + av_log(ctx, AV_LOG_ERROR, "Size values less than -1 are not acceptable.\n"); + return AVERROR(EINVAL); + } + if (w == -1 && h == -1) + s->w = s->h = 0; + + if (!(w = s->w)) + w = inlink->w; + if (!(h = s->h)) + h = inlink->h; + if (w == -1) + w = av_rescale(h, inlink->w, inlink->h); + if (h == -1) + h = av_rescale(w, inlink->h, inlink->w); + + if (w > INT_MAX || h > INT_MAX || + (h * inlink->w) > INT_MAX || + (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: + av_log(NULL, AV_LOG_ERROR, + "Error when evaluating the expression '%s'\n", expr); + return ret; +} + +static int nppscale_deinterleave(AVFilterContext *ctx, NPPScaleStageContext *stage, + AVFrame *out, AVFrame *in) +{ + AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data; + NppStatus err; + + switch (in_frames_ctx->sw_format) { + case AV_PIX_FMT_NV12: + err = nppiYCbCr420_8u_P2P3R(in->data[0], in->linesize[0], + in->data[1], in->linesize[1], + out->data, out->linesize, + (NppiSize){ in->width, in->height }); + break; + default: + return AVERROR_BUG; + } + if (err != NPP_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err); + return AVERROR_UNKNOWN; + } + + return 0; +} + +static int nppscale_resize(AVFilterContext *ctx, NPPScaleStageContext *stage, + AVFrame *out, AVFrame *in) +{ + NPPScaleContext *s = ctx->priv; + NppStatus err; + int i; + + for (i = 0; i < FF_ARRAY_ELEMS(in->data) && in->data[i]; i++) { + int iw = stage->planes_in[i].width; + int ih = stage->planes_in[i].height; + int ow = stage->planes_out[i].width; + int oh = stage->planes_out[i].height; + + err = nppiResizeSqrPixel_8u_C1R(in->data[i], (NppiSize){ iw, ih }, + in->linesize[i], (NppiRect){ 0, 0, iw, ih }, + out->data[i], out->linesize[i], + (NppiRect){ 0, 0, ow, oh }, + (double)ow / iw, (double)oh / ih, + 0.0, 0.0, s->interp_algo); + if (err != NPP_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "NPP resize error: %d\n", err); + return AVERROR_UNKNOWN; + } + } + + return 0; +} + +static int nppscale_interleave(AVFilterContext *ctx, NPPScaleStageContext *stage, + AVFrame *out, AVFrame *in) +{ + AVHWFramesContext *out_frames_ctx = (AVHWFramesContext*)out->hw_frames_ctx->data; + NppStatus err; + + switch (out_frames_ctx->sw_format) { + case AV_PIX_FMT_NV12: + err = nppiYCbCr420_8u_P3P2R((const uint8_t**)in->data, + in->linesize, + out->data[0], out->linesize[0], + out->data[1], out->linesize[1], + (NppiSize){ in->width, in->height }); + break; + default: + return AVERROR_BUG; + } + if (err != NPP_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err); + return AVERROR_UNKNOWN; + } + + return 0; +} + +static int (*const nppscale_process[])(AVFilterContext *ctx, NPPScaleStageContext *stage, + AVFrame *out, AVFrame *in) = { + [STAGE_DEINTERLEAVE] = nppscale_deinterleave, + [STAGE_RESIZE] = nppscale_resize, + [STAGE_INTERLEAVE] = nppscale_interleave, +}; + +static int nppscale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in) +{ + NPPScaleContext *s = ctx->priv; + AVFrame *src = in; + int i, ret, last_stage = -1; + + for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { + if (!s->stages[i].stage_needed) + continue; + + ret = nppscale_process[i](ctx, &s->stages[i], s->stages[i].frame, src); + if (ret < 0) + return ret; + + src = s->stages[i].frame; + last_stage = i; + } + + if (last_stage < 0) + return AVERROR_BUG; + ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0); + if (ret < 0) + return ret; + + av_frame_move_ref(out, src); + av_frame_move_ref(src, s->tmp_frame); + + ret = av_frame_copy_props(out, in); + if (ret < 0) + return ret; + + return 0; +} + +static int nppscale_filter_frame(AVFilterLink *link, AVFrame *in) +{ + AVFilterContext *ctx = link->dst; + NPPScaleContext *s = ctx->priv; + AVFilterLink *outlink = ctx->outputs[0]; + AVHWFramesContext *frames_ctx = (AVHWFramesContext*)outlink->hw_frames_ctx->data; + AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx; + + AVFrame *out = NULL; + CUresult err; + 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; + } + + 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); + + err = cuCtxPushCurrent(device_hwctx->cuda_ctx); + if (err != CUDA_SUCCESS) { + ret = AVERROR_UNKNOWN; + goto fail; + } + + ret = nppscale_scale(ctx, out, in); + + cuCtxPopCurrent(&dummy); + if (ret < 0) + goto fail; + + 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(NPPScaleContext, x) +#define FLAGS 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 }, + { "format", "Output pixel format", OFFSET(format_str), AV_OPT_TYPE_STRING, { .str = "same" }, .flags = FLAGS }, + + { "interp_algo", "Interpolation algorithm used for resizing", OFFSET(interp_algo), AV_OPT_TYPE_INT, { .i64 = NPPI_INTER_CUBIC }, 0, INT_MAX, FLAGS, "interp_algo" }, + { "nn", "nearest neighbour", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_NN }, 0, 0, FLAGS, "interp_algo" }, + { "linear", "linear", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LINEAR }, 0, 0, FLAGS, "interp_algo" }, + { "cubic", "cubic", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC }, 0, 0, FLAGS, "interp_algo" }, + { "cubic2p_bspline", "2-parameter cubic (B=1, C=0)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_BSPLINE }, 0, 0, FLAGS, "interp_algo" }, + { "cubic2p_catmullrom", "2-parameter cubic (B=0, C=1/2)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_CATMULLROM }, 0, 0, FLAGS, "interp_algo" }, + { "cubic2p_b05c03", "2-parameter cubic (B=1/2, C=3/10)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_B05C03 }, 0, 0, FLAGS, "interp_algo" }, + { "super", "supersampling", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_SUPER }, 0, 0, FLAGS, "interp_algo" }, + { "lanczos", "Lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LANCZOS }, 0, 0, FLAGS, "interp_algo" }, + { NULL }, +}; + +static const AVClass nppscale_class = { + .class_name = "nppscale", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +static const AVFilterPad nppscale_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = nppscale_filter_frame, + }, + { NULL } +}; + +static const AVFilterPad nppscale_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = nppscale_config_props, + }, + { NULL } +}; + +AVFilter ff_vf_scale_npp = { + .name = "scale_npp", + .description = NULL_IF_CONFIG_SMALL("NVIDIA Performance Primitives video " + "scaling and format conversion"), + + .init = nppscale_init, + .uninit = nppscale_uninit, + .query_formats = nppscale_query_formats, + + .priv_size = sizeof(NPPScaleContext), + .priv_class = &nppscale_class, + + .inputs = nppscale_inputs, + .outputs = nppscale_outputs, +}; -- cgit v1.2.3