/* * Copyright (c) 2004 Ville Saari * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 2 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 General Public License for more details. * * You should have received a copy of the GNU 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/avassert.h" #include "libavutil/imgutils.h" #include "libavutil/pixdesc.h" #include "libavutil/opt.h" #include "avfilter.h" #include "filters.h" #include "video.h" enum PhaseMode { PROGRESSIVE, TOP_FIRST, BOTTOM_FIRST, TOP_FIRST_ANALYZE, BOTTOM_FIRST_ANALYZE, ANALYZE, FULL_ANALYZE, AUTO, AUTO_ANALYZE }; #define DEPTH 8 #include "phase_template.c" #undef DEPTH #define DEPTH 9 #include "phase_template.c" #undef DEPTH #define DEPTH 10 #include "phase_template.c" #undef DEPTH #define DEPTH 12 #include "phase_template.c" #undef DEPTH #define DEPTH 14 #include "phase_template.c" #undef DEPTH #define DEPTH 16 #include "phase_template.c" typedef struct PhaseContext { const AVClass *class; int mode; ///<PhaseMode AVFrame *frame; /* previous frame */ int nb_planes; int planeheight[4]; int linesize[4]; enum PhaseMode (*analyze_plane)(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new); } PhaseContext; #define OFFSET(x) offsetof(PhaseContext, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM #define CONST(name, help, val, u) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, .unit = u } static const AVOption phase_options[] = { { "mode", "set phase mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=AUTO_ANALYZE}, PROGRESSIVE, AUTO_ANALYZE, FLAGS, .unit = "mode" }, CONST("p", "progressive", PROGRESSIVE, "mode"), CONST("t", "top first", TOP_FIRST, "mode"), CONST("b", "bottom first", BOTTOM_FIRST, "mode"), CONST("T", "top first analyze", TOP_FIRST_ANALYZE, "mode"), CONST("B", "bottom first analyze", BOTTOM_FIRST_ANALYZE, "mode"), CONST("u", "analyze", ANALYZE, "mode"), CONST("U", "full analyze", FULL_ANALYZE, "mode"), CONST("a", "auto", AUTO, "mode"), CONST("A", "auto analyze", AUTO_ANALYZE, "mode"), { NULL } }; AVFILTER_DEFINE_CLASS(phase); static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV440P10, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV440P12, AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, AV_PIX_FMT_NONE }; static int config_input(AVFilterLink *inlink) { PhaseContext *s = inlink->dst->priv; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); int ret; switch (desc->comp[0].depth) { case 8: s->analyze_plane = analyze_plane_8; break; case 9: s->analyze_plane = analyze_plane_9; break; case 10: s->analyze_plane = analyze_plane_10; break; case 12: s->analyze_plane = analyze_plane_12; break; case 14: s->analyze_plane = analyze_plane_14; break; case 16: s->analyze_plane = analyze_plane_16; break; default: av_assert0(0); }; if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) return ret; s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); s->planeheight[0] = s->planeheight[3] = inlink->h; s->nb_planes = av_pix_fmt_count_planes(inlink->format); return 0; } static int filter_frame(AVFilterLink *inlink, AVFrame *in) { AVFilterContext *ctx = inlink->dst; AVFilterLink *outlink = ctx->outputs[0]; PhaseContext *s = ctx->priv; enum PhaseMode mode; int plane, top, y; AVFrame *out; if (ctx->is_disabled) { av_frame_free(&s->frame); /* we keep a reference to the previous frame so the filter can start * being useful as soon as it's not disabled, avoiding the 1-frame * delay. */ s->frame = av_frame_clone(in); return ff_filter_frame(outlink, in); } out = ff_get_video_buffer(outlink, outlink->w, outlink->h); if (!out) { av_frame_free(&in); return AVERROR(ENOMEM); } av_frame_copy_props(out, in); if (!s->frame) { s->frame = in; mode = PROGRESSIVE; } else { mode = s->analyze_plane(ctx, s->mode, s->frame, in); } for (plane = 0; plane < s->nb_planes; plane++) { const uint8_t *buf = s->frame->data[plane]; const uint8_t *from = in->data[plane]; uint8_t *to = out->data[plane]; for (y = 0, top = 1; y < s->planeheight[plane]; y++, top ^= 1) { memcpy(to, mode == (top ? BOTTOM_FIRST : TOP_FIRST) ? buf : from, s->linesize[plane]); buf += s->frame->linesize[plane]; from += in->linesize[plane]; to += out->linesize[plane]; } } if (in != s->frame) av_frame_free(&s->frame); s->frame = in; return ff_filter_frame(outlink, out); } static av_cold void uninit(AVFilterContext *ctx) { PhaseContext *s = ctx->priv; av_frame_free(&s->frame); } static const AVFilterPad phase_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = filter_frame, .config_props = config_input, }, }; const AVFilter ff_vf_phase = { .name = "phase", .description = NULL_IF_CONFIG_SMALL("Phase shift fields."), .priv_size = sizeof(PhaseContext), .priv_class = &phase_class, .uninit = uninit, FILTER_INPUTS(phase_inputs), FILTER_OUTPUTS(ff_video_default_filterpad), FILTER_PIXFMTS_ARRAY(pix_fmts), .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, .process_command = ff_filter_process_command, };