2 * Copyright (c) 2004 Ville Saari
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "libavutil/avassert.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/pixdesc.h"
24 #include "libavutil/opt.h"
42 #include "phase_template.c"
46 #include "phase_template.c"
50 #include "phase_template.c"
54 #include "phase_template.c"
58 #include "phase_template.c"
62 #include "phase_template.c"
64 typedef struct PhaseContext {
66 int mode; ///<PhaseMode
67 AVFrame *frame; /* previous frame */
72 enum PhaseMode (*analyze_plane)(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new);
75 #define OFFSET(x) offsetof(PhaseContext, x)
76 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
77 #define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, unit }
79 static const AVOption phase_options[] = {
80 { "mode", "set phase mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=AUTO_ANALYZE}, PROGRESSIVE, AUTO_ANALYZE, FLAGS, "mode" },
81 CONST("p", "progressive", PROGRESSIVE, "mode"),
82 CONST("t", "top first", TOP_FIRST, "mode"),
83 CONST("b", "bottom first", BOTTOM_FIRST, "mode"),
84 CONST("T", "top first analyze", TOP_FIRST_ANALYZE, "mode"),
85 CONST("B", "bottom first analyze", BOTTOM_FIRST_ANALYZE, "mode"),
86 CONST("u", "analyze", ANALYZE, "mode"),
87 CONST("U", "full analyze", FULL_ANALYZE, "mode"),
88 CONST("a", "auto", AUTO, "mode"),
89 CONST("A", "auto analyze", AUTO_ANALYZE, "mode"),
93 AVFILTER_DEFINE_CLASS(phase);
95 static const enum AVPixelFormat pix_fmts[] = {
102 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
103 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
104 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
105 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
106 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
108 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
109 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
110 AV_PIX_FMT_YUV440P10,
111 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
112 AV_PIX_FMT_YUV440P12,
113 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
114 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
115 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
116 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
117 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
118 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
119 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
120 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
121 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
125 static int config_input(AVFilterLink *inlink)
127 PhaseContext *s = inlink->dst->priv;
128 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
131 switch (desc->comp[0].depth) {
132 case 8: s->analyze_plane = analyze_plane_8; break;
133 case 9: s->analyze_plane = analyze_plane_9; break;
134 case 10: s->analyze_plane = analyze_plane_10; break;
135 case 12: s->analyze_plane = analyze_plane_12; break;
136 case 14: s->analyze_plane = analyze_plane_14; break;
137 case 16: s->analyze_plane = analyze_plane_16; break;
138 default: av_assert0(0);
141 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
144 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
145 s->planeheight[0] = s->planeheight[3] = inlink->h;
147 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
152 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
154 AVFilterContext *ctx = inlink->dst;
155 AVFilterLink *outlink = ctx->outputs[0];
156 PhaseContext *s = ctx->priv;
161 if (ctx->is_disabled) {
162 av_frame_free(&s->frame);
163 /* we keep a reference to the previous frame so the filter can start
164 * being useful as soon as it's not disabled, avoiding the 1-frame
166 s->frame = av_frame_clone(in);
167 return ff_filter_frame(outlink, in);
170 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
173 return AVERROR(ENOMEM);
175 av_frame_copy_props(out, in);
181 mode = s->analyze_plane(ctx, s->mode, s->frame, in);
184 for (plane = 0; plane < s->nb_planes; plane++) {
185 const uint8_t *buf = s->frame->data[plane];
186 const uint8_t *from = in->data[plane];
187 uint8_t *to = out->data[plane];
189 for (y = 0, top = 1; y < s->planeheight[plane]; y++, top ^= 1) {
190 memcpy(to, mode == (top ? BOTTOM_FIRST : TOP_FIRST) ? buf : from, s->linesize[plane]);
192 buf += s->frame->linesize[plane];
193 from += in->linesize[plane];
194 to += out->linesize[plane];
199 av_frame_free(&s->frame);
201 return ff_filter_frame(outlink, out);
204 static av_cold void uninit(AVFilterContext *ctx)
206 PhaseContext *s = ctx->priv;
208 av_frame_free(&s->frame);
211 static const AVFilterPad phase_inputs[] = {
214 .type = AVMEDIA_TYPE_VIDEO,
215 .filter_frame = filter_frame,
216 .config_props = config_input,
220 const AVFilter ff_vf_phase = {
222 .description = NULL_IF_CONFIG_SMALL("Phase shift fields."),
223 .priv_size = sizeof(PhaseContext),
224 .priv_class = &phase_class,
226 FILTER_INPUTS(phase_inputs),
227 FILTER_OUTPUTS(ff_video_default_filterpad),
228 FILTER_PIXFMTS_ARRAY(pix_fmts),
229 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
230 .process_command = ff_filter_process_command,