FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavfilter/vf_phase.c
Date: 2024-04-24 02:45:42
Exec Total Coverage
Lines: 39 51 76.5%
Functions: 3 3 100.0%
Branches: 15 25 60.0%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2004 Ville Saari
3 *
4 * This file is part of FFmpeg.
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include "libavutil/avassert.h"
22 #include "libavutil/imgutils.h"
23 #include "libavutil/pixdesc.h"
24 #include "libavutil/opt.h"
25 #include "avfilter.h"
26 #include "internal.h"
27 #include "video.h"
28
29 enum PhaseMode {
30 PROGRESSIVE,
31 TOP_FIRST,
32 BOTTOM_FIRST,
33 TOP_FIRST_ANALYZE,
34 BOTTOM_FIRST_ANALYZE,
35 ANALYZE,
36 FULL_ANALYZE,
37 AUTO,
38 AUTO_ANALYZE
39 };
40
41 #define DEPTH 8
42 #include "phase_template.c"
43
44 #undef DEPTH
45 #define DEPTH 9
46 #include "phase_template.c"
47
48 #undef DEPTH
49 #define DEPTH 10
50 #include "phase_template.c"
51
52 #undef DEPTH
53 #define DEPTH 12
54 #include "phase_template.c"
55
56 #undef DEPTH
57 #define DEPTH 14
58 #include "phase_template.c"
59
60 #undef DEPTH
61 #define DEPTH 16
62 #include "phase_template.c"
63
64 typedef struct PhaseContext {
65 const AVClass *class;
66 int mode; ///<PhaseMode
67 AVFrame *frame; /* previous frame */
68 int nb_planes;
69 int planeheight[4];
70 int linesize[4];
71
72 enum PhaseMode (*analyze_plane)(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new);
73 } PhaseContext;
74
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, u) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, 0, 0, FLAGS, .unit = u }
78
79 static const AVOption phase_options[] = {
80 { "mode", "set phase mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=AUTO_ANALYZE}, PROGRESSIVE, AUTO_ANALYZE, FLAGS, .unit = "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"),
90 { NULL }
91 };
92
93 AVFILTER_DEFINE_CLASS(phase);
94
95 static const enum AVPixelFormat pix_fmts[] = {
96 AV_PIX_FMT_GRAY8,
97 AV_PIX_FMT_GRAY9,
98 AV_PIX_FMT_GRAY10,
99 AV_PIX_FMT_GRAY12,
100 AV_PIX_FMT_GRAY14,
101 AV_PIX_FMT_GRAY16,
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,
107 AV_PIX_FMT_YUVJ411P,
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,
122 AV_PIX_FMT_NONE
123 };
124
125 1 static int config_input(AVFilterLink *inlink)
126 {
127 1 PhaseContext *s = inlink->dst->priv;
128 1 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
129 int ret;
130
131
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1 switch (desc->comp[0].depth) {
132 1 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);
139 };
140
141
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1 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
142 return ret;
143
144 1 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
145 1 s->planeheight[0] = s->planeheight[3] = inlink->h;
146
147 1 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
148
149 1 return 0;
150 }
151
152 50 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
153 {
154 50 AVFilterContext *ctx = inlink->dst;
155 50 AVFilterLink *outlink = ctx->outputs[0];
156 50 PhaseContext *s = ctx->priv;
157 enum PhaseMode mode;
158 int plane, top, y;
159 AVFrame *out;
160
161
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50 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
165 * delay. */
166 s->frame = av_frame_clone(in);
167 return ff_filter_frame(outlink, in);
168 }
169
170 50 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
171
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50 if (!out) {
172 av_frame_free(&in);
173 return AVERROR(ENOMEM);
174 }
175 50 av_frame_copy_props(out, in);
176
177
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50 if (!s->frame) {
178 1 s->frame = in;
179 1 mode = PROGRESSIVE;
180 } else {
181 49 mode = s->analyze_plane(ctx, s->mode, s->frame, in);
182 }
183
184
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200 for (plane = 0; plane < s->nb_planes; plane++) {
185 150 const uint8_t *buf = s->frame->data[plane];
186 150 const uint8_t *from = in->data[plane];
187 150 uint8_t *to = out->data[plane];
188
189
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28950 for (y = 0, top = 1; y < s->planeheight[plane]; y++, top ^= 1) {
190
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28800 memcpy(to, mode == (top ? BOTTOM_FIRST : TOP_FIRST) ? buf : from, s->linesize[plane]);
191
192 28800 buf += s->frame->linesize[plane];
193 28800 from += in->linesize[plane];
194 28800 to += out->linesize[plane];
195 }
196 }
197
198
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50 if (in != s->frame)
199 49 av_frame_free(&s->frame);
200 50 s->frame = in;
201 50 return ff_filter_frame(outlink, out);
202 }
203
204 2 static av_cold void uninit(AVFilterContext *ctx)
205 {
206 2 PhaseContext *s = ctx->priv;
207
208 2 av_frame_free(&s->frame);
209 2 }
210
211 static const AVFilterPad phase_inputs[] = {
212 {
213 .name = "default",
214 .type = AVMEDIA_TYPE_VIDEO,
215 .filter_frame = filter_frame,
216 .config_props = config_input,
217 },
218 };
219
220 const AVFilter ff_vf_phase = {
221 .name = "phase",
222 .description = NULL_IF_CONFIG_SMALL("Phase shift fields."),
223 .priv_size = sizeof(PhaseContext),
224 .priv_class = &phase_class,
225 .uninit = uninit,
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,
231 };
232