| /* |
| * Copyright (c) 2016 Paul B Mahol |
| * |
| * 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 |
| */ |
| |
| #include "libavutil/attributes.h" |
| #include "libavutil/common.h" |
| #include "libavutil/eval.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "avfilter.h" |
| #include "drawutils.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "video.h" |
| #include "framesync.h" |
| |
| static const char *const var_names[] = { |
| "w", ///< width of the input video |
| "h", ///< height of the input video |
| "x", ///< input value for the pixel from input #1 |
| "y", ///< input value for the pixel from input #2 |
| "bdx", ///< input #1 video bitdepth |
| "bdy", ///< input #2 video bitdepth |
| NULL |
| }; |
| |
| enum var_name { |
| VAR_W, |
| VAR_H, |
| VAR_X, |
| VAR_Y, |
| VAR_BITDEPTHX, |
| VAR_BITDEPTHY, |
| VAR_VARS_NB |
| }; |
| |
| typedef struct LUT2Context { |
| const AVClass *class; |
| FFFrameSync fs; |
| |
| int odepth; |
| char *comp_expr_str[4]; |
| |
| AVExpr *comp_expr[4]; |
| double var_values[VAR_VARS_NB]; |
| uint16_t *lut[4]; ///< lookup table for each component |
| int width[4], height[4]; |
| int widthx[4], heightx[4]; |
| int widthy[4], heighty[4]; |
| int nb_planesx; |
| int nb_planesy; |
| int nb_planes; |
| int depth, depthx, depthy; |
| int tlut2; |
| AVFrame *prev_frame; /* only used with tlut2 */ |
| |
| int (*lut2)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
| } LUT2Context; |
| |
| typedef struct ThreadData { |
| AVFrame *out, *srcx, *srcy; |
| } ThreadData; |
| |
| #define OFFSET(x) offsetof(LUT2Context, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
| |
| static const AVOption options[] = { |
| { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "d", "set output depth", OFFSET(odepth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 16, .flags = FLAGS }, |
| { NULL } |
| }; |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| LUT2Context *s = ctx->priv; |
| int i; |
| |
| ff_framesync_uninit(&s->fs); |
| av_frame_free(&s->prev_frame); |
| |
| for (i = 0; i < 4; i++) { |
| av_expr_free(s->comp_expr[i]); |
| s->comp_expr[i] = NULL; |
| av_freep(&s->comp_expr_str[i]); |
| av_freep(&s->lut[i]); |
| } |
| } |
| |
| #define BIT8_FMTS \ |
| AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, \ |
| AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, \ |
| AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, \ |
| AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, \ |
| AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, \ |
| AV_PIX_FMT_GRAY8, AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, |
| |
| #define BIT9_FMTS \ |
| AV_PIX_FMT_GBRP9, AV_PIX_FMT_GRAY9, \ |
| AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \ |
| AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
| |
| #define BIT10_FMTS \ |
| AV_PIX_FMT_GRAY10, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, \ |
| AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \ |
| AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
| |
| #define BIT12_FMTS \ |
| AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, \ |
| AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, \ |
| AV_PIX_FMT_GRAY12, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRP12, |
| |
| #define BIT14_FMTS \ |
| AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \ |
| AV_PIX_FMT_GRAY14, AV_PIX_FMT_GBRP14, |
| |
| #define BIT16_FMTS \ |
| AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \ |
| AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, \ |
| AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_GRAY16, |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| LUT2Context *s = ctx->priv; |
| static const enum AVPixelFormat all_pix_fmts[] = { |
| BIT8_FMTS |
| BIT9_FMTS |
| BIT10_FMTS |
| BIT12_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat bit8_pix_fmts[] = { |
| BIT8_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat bit9_pix_fmts[] = { |
| BIT9_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat bit10_pix_fmts[] = { |
| BIT10_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat bit12_pix_fmts[] = { |
| BIT12_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat bit14_pix_fmts[] = { |
| BIT14_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| static const enum AVPixelFormat bit16_pix_fmts[] = { |
| BIT16_FMTS |
| AV_PIX_FMT_NONE |
| }; |
| const enum AVPixelFormat *pix_fmts; |
| int ret; |
| |
| if (s->tlut2 || !s->odepth) |
| return ff_set_common_formats(ctx, ff_make_format_list(all_pix_fmts)); |
| |
| ret = ff_formats_ref(ff_make_format_list(all_pix_fmts), &ctx->inputs[0]->outcfg.formats); |
| if (ret < 0) |
| return ret; |
| |
| switch (s->odepth) { |
| case 8: pix_fmts = bit8_pix_fmts; break; |
| case 9: pix_fmts = bit9_pix_fmts; break; |
| case 10: pix_fmts = bit10_pix_fmts; break; |
| case 12: pix_fmts = bit12_pix_fmts; break; |
| case 14: pix_fmts = bit14_pix_fmts; break; |
| case 16: pix_fmts = bit16_pix_fmts; break; |
| default: av_log(ctx, AV_LOG_ERROR, "Unsupported output bit depth %d.\n", s->odepth); |
| return AVERROR(EINVAL); |
| } |
| |
| return ff_formats_ref(ff_make_format_list(pix_fmts), &ctx->outputs[0]->incfg.formats); |
| } |
| |
| static int config_inputx(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| LUT2Context *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| int hsub = desc->log2_chroma_w; |
| int vsub = desc->log2_chroma_h; |
| |
| s->nb_planesx = av_pix_fmt_count_planes(inlink->format); |
| s->heightx[1] = s->heightx[2] = AV_CEIL_RSHIFT(inlink->h, vsub); |
| s->heightx[0] = s->heightx[3] = inlink->h; |
| s->widthx[1] = s->widthx[2] = AV_CEIL_RSHIFT(inlink->w, hsub); |
| s->widthx[0] = s->widthx[3] = inlink->w; |
| |
| s->var_values[VAR_W] = inlink->w; |
| s->var_values[VAR_H] = inlink->h; |
| s->depthx = desc->comp[0].depth; |
| s->var_values[VAR_BITDEPTHX] = s->depthx; |
| |
| if (s->tlut2) { |
| s->depthy = desc->comp[0].depth; |
| s->var_values[VAR_BITDEPTHY] = s->depthy; |
| } |
| |
| return 0; |
| } |
| |
| static int config_inputy(AVFilterLink *inlink) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| LUT2Context *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
| int hsub = desc->log2_chroma_w; |
| int vsub = desc->log2_chroma_h; |
| |
| s->nb_planesy = av_pix_fmt_count_planes(inlink->format); |
| s->depthy = desc->comp[0].depth; |
| s->var_values[VAR_BITDEPTHY] = s->depthy; |
| s->heighty[1] = s->heighty[2] = AV_CEIL_RSHIFT(inlink->h, vsub); |
| s->heighty[0] = s->heighty[3] = inlink->h; |
| s->widthy[1] = s->widthy[2] = AV_CEIL_RSHIFT(inlink->w, hsub); |
| s->widthy[0] = s->widthy[3] = inlink->w; |
| |
| return 0; |
| } |
| |
| #define DEFINE_LUT2(zname, xname, yname, ztype, xtype, ytype, zdiv, xdiv, ydiv) \ |
| static int lut2_##zname##_##xname##_##yname(AVFilterContext *ctx, \ |
| void *arg, \ |
| int jobnr, int nb_jobs) \ |
| { \ |
| LUT2Context *s = ctx->priv; \ |
| ThreadData *td = arg; \ |
| AVFrame *out = td->out; \ |
| AVFrame *srcx = td->srcx; \ |
| AVFrame *srcy = td->srcy; \ |
| const int odepth = s->odepth; \ |
| int p, y, x; \ |
| \ |
| for (p = 0; p < s->nb_planes; p++) { \ |
| const int slice_start = (s->heightx[p] * jobnr) / nb_jobs; \ |
| const int slice_end = (s->heightx[p] * (jobnr+1)) / nb_jobs; \ |
| const uint16_t *lut = s->lut[p]; \ |
| const xtype *srcxx; \ |
| const ytype *srcyy; \ |
| ztype *dst; \ |
| \ |
| dst = (ztype *)(out->data[p] + slice_start * out->linesize[p]); \ |
| srcxx = (const xtype *)(srcx->data[p] + slice_start * srcx->linesize[p]);\ |
| srcyy = (const ytype *)(srcy->data[p] + slice_start * srcy->linesize[p]);\ |
| \ |
| for (y = slice_start; y < slice_end; y++) { \ |
| for (x = 0; x < s->widthx[p]; x++) { \ |
| dst[x] = av_clip_uintp2_c(lut[(srcyy[x] << s->depthx) | srcxx[x]], odepth); \ |
| } \ |
| \ |
| dst += out->linesize[p] / zdiv; \ |
| srcxx += srcx->linesize[p] / xdiv; \ |
| srcyy += srcy->linesize[p] / ydiv; \ |
| } \ |
| } \ |
| return 0; \ |
| } |
| |
| DEFINE_LUT2(8, 8, 8, uint8_t, uint8_t, uint8_t, 1, 1, 1) |
| DEFINE_LUT2(8, 8, 16, uint8_t, uint8_t, uint16_t, 1, 1, 2) |
| DEFINE_LUT2(8, 16, 8, uint8_t, uint16_t, uint8_t, 1, 2, 1) |
| DEFINE_LUT2(8, 16, 16, uint8_t, uint16_t, uint16_t, 1, 2, 2) |
| DEFINE_LUT2(16, 8, 8, uint16_t, uint8_t, uint8_t, 2, 1, 1) |
| DEFINE_LUT2(16, 8, 16, uint16_t, uint8_t, uint16_t, 2, 1, 2) |
| DEFINE_LUT2(16, 16, 8, uint16_t, uint16_t, uint8_t, 2, 2, 1) |
| DEFINE_LUT2(16, 16, 16, uint16_t, uint16_t, uint16_t, 2, 2, 2) |
| |
| static int process_frame(FFFrameSync *fs) |
| { |
| AVFilterContext *ctx = fs->parent; |
| LUT2Context *s = fs->opaque; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| AVFrame *out, *srcx = NULL, *srcy = NULL; |
| int ret; |
| |
| if ((ret = ff_framesync_get_frame(&s->fs, 0, &srcx, 0)) < 0 || |
| (ret = ff_framesync_get_frame(&s->fs, 1, &srcy, 0)) < 0) |
| return ret; |
| |
| if (ctx->is_disabled || !srcy) { |
| out = av_frame_clone(srcx); |
| if (!out) |
| return AVERROR(ENOMEM); |
| } else { |
| ThreadData td; |
| |
| out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| if (!out) |
| return AVERROR(ENOMEM); |
| av_frame_copy_props(out, srcx); |
| |
| td.out = out; |
| td.srcx = srcx; |
| td.srcy = srcy; |
| ctx->internal->execute(ctx, s->lut2, &td, NULL, FFMIN(s->heightx[1], ff_filter_get_nb_threads(ctx))); |
| } |
| |
| out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); |
| |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static int config_output(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| LUT2Context *s = ctx->priv; |
| int p, ret; |
| |
| s->depth = s->depthx + s->depthy; |
| s->nb_planes = s->nb_planesx; |
| |
| s->lut2 = s->depth > 16 ? lut2_16_16_16 : lut2_8_8_8; |
| if (s->odepth) { |
| if (s->depthx == 8 && s->depthy == 8 && s->odepth > 8) |
| s->lut2 = lut2_16_8_8; |
| if (s->depthx > 8 && s->depthy == 8 && s->odepth > 8) |
| s->lut2 = lut2_16_16_8; |
| if (s->depthx == 8 && s->depthy > 8 && s->odepth > 8) |
| s->lut2 = lut2_16_8_16; |
| if (s->depthx == 8 && s->depthy == 8 && s->odepth == 8) |
| s->lut2 = lut2_8_8_8; |
| if (s->depthx > 8 && s->depthy == 8 && s->odepth == 8) |
| s->lut2 = lut2_8_16_8; |
| if (s->depthx == 8 && s->depthy > 8 && s->odepth == 8) |
| s->lut2 = lut2_8_8_16; |
| if (s->depthx > 8 && s->depthy > 8 && s->odepth == 8) |
| s->lut2 = lut2_8_16_16; |
| } else { |
| s->odepth = s->depthx; |
| } |
| |
| for (p = 0; p < s->nb_planes; p++) { |
| if (!s->lut[p]) |
| s->lut[p] = av_malloc_array(1 << s->depth, sizeof(uint16_t)); |
| if (!s->lut[p]) |
| return AVERROR(ENOMEM); |
| } |
| |
| for (p = 0; p < s->nb_planes; p++) { |
| double res; |
| int x, y; |
| |
| /* create the parsed expression */ |
| av_expr_free(s->comp_expr[p]); |
| s->comp_expr[p] = NULL; |
| ret = av_expr_parse(&s->comp_expr[p], s->comp_expr_str[p], |
| var_names, NULL, NULL, NULL, NULL, 0, ctx); |
| if (ret < 0) { |
| av_log(ctx, AV_LOG_ERROR, |
| "Error when parsing the expression '%s' for the component %d.\n", |
| s->comp_expr_str[p], p); |
| return AVERROR(EINVAL); |
| } |
| |
| /* compute the lut */ |
| for (y = 0; y < (1 << s->depthy); y++) { |
| s->var_values[VAR_Y] = y; |
| for (x = 0; x < (1 << s->depthx); x++) { |
| s->var_values[VAR_X] = x; |
| res = av_expr_eval(s->comp_expr[p], s->var_values, s); |
| if (isnan(res)) { |
| av_log(ctx, AV_LOG_ERROR, |
| "Error when evaluating the expression '%s' for the values %d and %d for the component %d.\n", |
| s->comp_expr_str[p], x, y, p); |
| return AVERROR(EINVAL); |
| } |
| |
| s->lut[p][(y << s->depthx) + x] = res; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int lut2_config_output(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| LUT2Context *s = ctx->priv; |
| AVFilterLink *srcx = ctx->inputs[0]; |
| AVFilterLink *srcy = ctx->inputs[1]; |
| FFFrameSyncIn *in; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format); |
| int hsub = desc->log2_chroma_w; |
| int vsub = desc->log2_chroma_h; |
| int ret; |
| |
| outlink->w = srcx->w; |
| outlink->h = srcx->h; |
| outlink->time_base = srcx->time_base; |
| outlink->sample_aspect_ratio = srcx->sample_aspect_ratio; |
| outlink->frame_rate = srcx->frame_rate; |
| |
| s->nb_planes = av_pix_fmt_count_planes(outlink->format); |
| s->height[1] = s->height[2] = AV_CEIL_RSHIFT(outlink->h, vsub); |
| s->height[0] = s->height[3] = outlink->h; |
| s->width[1] = s->width[2] = AV_CEIL_RSHIFT(outlink->w, hsub); |
| s->width[0] = s->width[3] = outlink->w; |
| |
| if (!s->odepth && srcx->format != srcy->format) { |
| av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n"); |
| return AVERROR(EINVAL); |
| } |
| |
| if (srcx->w != srcy->w || srcx->h != srcy->h) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s parameters " |
| "(size %dx%d) do not match the corresponding " |
| "second input link %s parameters (size %dx%d)\n", |
| ctx->input_pads[0].name, srcx->w, srcx->h, |
| ctx->input_pads[1].name, |
| srcy->w, srcy->h); |
| return AVERROR(EINVAL); |
| } |
| |
| if (s->nb_planesx != s->nb_planesy) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s number of planes " |
| "(%d) do not match the corresponding " |
| "second input link %s number of planes (%d)\n", |
| ctx->input_pads[0].name, s->nb_planesx, |
| ctx->input_pads[1].name, s->nb_planesy); |
| return AVERROR(EINVAL); |
| } |
| |
| if (s->nb_planesx != s->nb_planes) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s number of planes " |
| "(%d) do not match the corresponding " |
| "output link %s number of planes (%d)\n", |
| ctx->input_pads[0].name, s->nb_planesx, |
| ctx->output_pads[0].name, s->nb_planes); |
| return AVERROR(EINVAL); |
| } |
| |
| if (s->widthx[1] != s->widthy[1] || s->heightx[1] != s->heighty[1]) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s 2nd plane " |
| "(size %dx%d) do not match the corresponding " |
| "second input link %s 2nd plane (size %dx%d)\n", |
| ctx->input_pads[0].name, s->widthx[1], s->heightx[1], |
| ctx->input_pads[1].name, |
| s->widthy[1], s->heighty[1]); |
| return AVERROR(EINVAL); |
| } |
| |
| if (s->widthx[2] != s->widthy[2] || s->heightx[2] != s->heighty[2]) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s 3rd plane " |
| "(size %dx%d) do not match the corresponding " |
| "second input link %s 3rd plane (size %dx%d)\n", |
| ctx->input_pads[0].name, s->widthx[2], s->heightx[2], |
| ctx->input_pads[1].name, |
| s->widthy[2], s->heighty[2]); |
| return AVERROR(EINVAL); |
| } |
| |
| if (s->widthx[1] != s->width[1] || s->heightx[1] != s->height[1]) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s 2nd plane " |
| "(size %dx%d) do not match the corresponding " |
| "output link %s 2nd plane (size %dx%d)\n", |
| ctx->input_pads[0].name, s->widthx[1], s->heightx[1], |
| ctx->output_pads[0].name, s->width[1], s->height[1]); |
| return AVERROR(EINVAL); |
| } |
| |
| if (s->widthx[2] != s->width[2] || s->heightx[2] != s->height[2]) { |
| av_log(ctx, AV_LOG_ERROR, "First input link %s 3rd plane " |
| "(size %dx%d) do not match the corresponding " |
| "output link %s 3rd plane (size %dx%d)\n", |
| ctx->input_pads[0].name, s->widthx[2], s->heightx[2], |
| ctx->output_pads[0].name, s->width[2], s->height[2]); |
| return AVERROR(EINVAL); |
| } |
| |
| if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0) |
| return ret; |
| |
| in = s->fs.in; |
| in[0].time_base = srcx->time_base; |
| in[1].time_base = srcy->time_base; |
| in[0].sync = 2; |
| in[0].before = EXT_STOP; |
| in[0].after = EXT_INFINITY; |
| in[1].sync = 1; |
| in[1].before = EXT_STOP; |
| in[1].after = EXT_INFINITY; |
| s->fs.opaque = s; |
| s->fs.on_event = process_frame; |
| |
| if ((ret = config_output(outlink)) < 0) |
| return ret; |
| |
| ret = ff_framesync_configure(&s->fs); |
| outlink->time_base = s->fs.time_base; |
| |
| return ret; |
| } |
| |
| static int activate(AVFilterContext *ctx) |
| { |
| LUT2Context *s = ctx->priv; |
| return ff_framesync_activate(&s->fs); |
| } |
| |
| static const AVFilterPad inputs[] = { |
| { |
| .name = "srcx", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_inputx, |
| }, |
| { |
| .name = "srcy", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_inputy, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = lut2_config_output, |
| }, |
| { NULL } |
| }; |
| |
| static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, |
| char *res, int res_len, int flags) |
| { |
| int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags); |
| |
| if (ret < 0) |
| return ret; |
| |
| return config_output(ctx->outputs[0]); |
| } |
| |
| #define lut2_options options |
| |
| FRAMESYNC_DEFINE_CLASS(lut2, LUT2Context, fs); |
| |
| AVFilter ff_vf_lut2 = { |
| .name = "lut2", |
| .description = NULL_IF_CONFIG_SMALL("Compute and apply a lookup table from two video inputs."), |
| .preinit = lut2_framesync_preinit, |
| .priv_size = sizeof(LUT2Context), |
| .priv_class = &lut2_class, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .activate = activate, |
| .inputs = inputs, |
| .outputs = outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | |
| AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = process_command, |
| }; |
| |
| #if CONFIG_TLUT2_FILTER |
| |
| static av_cold int init(AVFilterContext *ctx) |
| { |
| LUT2Context *s = ctx->priv; |
| |
| s->tlut2 = !strcmp(ctx->filter->name, "tlut2"); |
| |
| return 0; |
| } |
| |
| static int tlut2_filter_frame(AVFilterLink *inlink, AVFrame *frame) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| LUT2Context *s = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| |
| if (s->prev_frame) { |
| AVFrame *out; |
| |
| if (ctx->is_disabled) { |
| out = av_frame_clone(frame); |
| } else { |
| ThreadData td; |
| |
| out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| if (!out) { |
| av_frame_free(&s->prev_frame); |
| s->prev_frame = frame; |
| return AVERROR(ENOMEM); |
| } |
| |
| av_frame_copy_props(out, frame); |
| |
| td.out = out; |
| td.srcx = frame; |
| td.srcy = s->prev_frame; |
| ctx->internal->execute(ctx, s->lut2, &td, NULL, FFMIN(s->heightx[1], ff_filter_get_nb_threads(ctx))); |
| } |
| av_frame_free(&s->prev_frame); |
| s->prev_frame = frame; |
| return ff_filter_frame(outlink, out); |
| } |
| s->prev_frame = frame; |
| return 0; |
| } |
| |
| static const AVOption tlut2_options[] = { |
| { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, { .str = "x" }, .flags = TFLAGS }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(tlut2); |
| |
| static const AVFilterPad tlut2_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = tlut2_filter_frame, |
| .config_props = config_inputx, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad tlut2_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_tlut2 = { |
| .name = "tlut2", |
| .description = NULL_IF_CONFIG_SMALL("Compute and apply a lookup table from two successive frames."), |
| .priv_size = sizeof(LUT2Context), |
| .priv_class = &tlut2_class, |
| .query_formats = query_formats, |
| .init = init, |
| .uninit = uninit, |
| .inputs = tlut2_inputs, |
| .outputs = tlut2_outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | |
| AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = process_command, |
| }; |
| |
| #endif |
