| /* |
| * 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 "formats.h" |
| #include "internal.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, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit } |
| |
| static const AVOption phase_options[] = { |
| { "mode", "set phase mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=AUTO_ANALYZE}, PROGRESSIVE, AUTO_ANALYZE, FLAGS, "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 int query_formats(AVFilterContext *ctx) |
| { |
| 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 |
| }; |
| |
| AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| 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, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad phase_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_phase = { |
| .name = "phase", |
| .description = NULL_IF_CONFIG_SMALL("Phase shift fields."), |
| .priv_size = sizeof(PhaseContext), |
| .priv_class = &phase_class, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .inputs = phase_inputs, |
| .outputs = phase_outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, |
| .process_command = ff_filter_process_command, |
| }; |