| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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. |
| * |
| * FFmpeg 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file |
| * scale video filter |
| */ |
| |
| #include <nppi.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #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->interp_algo == NPPI_INTER_SUPER && |
| (out_width > in_width && out_height > in_height)) { |
| s->interp_algo = NPPI_INTER_LANCZOS; |
| av_log(ctx, AV_LOG_WARNING, "super-sampling not supported for output dimensions, using lanczos instead.\n"); |
| } |
| if (s->interp_algo == NPPI_INTER_SUPER && |
| !(out_width < in_width && out_height < in_height)) { |
| s->interp_algo = NPPI_INTER_CUBIC; |
| av_log(ctx, AV_LOG_WARNING, "super-sampling not supported for output dimensions, using cubic instead.\n"); |
| } |
| } |
| |
| 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 0; |
| 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_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 }, |
| { "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, |
| }; |