FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/yadif_common.c
Date: 2024-04-27 00:58:15
Exec Total Coverage
Lines: 98 151 64.9%
Functions: 6 7 85.7%
Branches: 57 108 52.8%
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1 /*
2 * Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at>
3 * 2010 James Darnley <james.darnley@gmail.com>
4
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/avassert.h"
23 #include "libavutil/imgutils.h"
24 #include "internal.h"
25 #include "video.h"
26 #include "yadif.h"
27
28 268 static int return_frame(AVFilterContext *ctx, int is_second)
29 {
30 268 YADIFContext *yadif = ctx->priv;
31 268 AVFilterLink *link = ctx->outputs[0];
32 int tff, ret;
33
34
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 268 if (yadif->parity == -1) {
35 268 tff = (yadif->cur->flags & AV_FRAME_FLAG_INTERLACED) ?
36
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 268 !!(yadif->cur->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST) : 1;
37 } else {
38 ✗ tff = yadif->parity ^ 1;
39 }
40
41
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 268 if (is_second) {
42 58 yadif->out = ff_get_video_buffer(link, link->w, link->h);
43
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 58 if (!yadif->out)
44 ✗ return AVERROR(ENOMEM);
45
46 58 av_frame_copy_props(yadif->out, yadif->cur);
47 #if FF_API_INTERLACED_FRAME
48 FF_DISABLE_DEPRECATION_WARNINGS
49 58 yadif->out->interlaced_frame = 0;
50 FF_ENABLE_DEPRECATION_WARNINGS
51 #endif
52 58 yadif->out->flags &= ~AV_FRAME_FLAG_INTERLACED;
53
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 58 if (yadif->current_field == YADIF_FIELD_BACK_END)
54 ✗ yadif->current_field = YADIF_FIELD_END;
55 }
56
57 268 yadif->filter(ctx, yadif->out, tff ^ !is_second, tff);
58
59
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 268 if (is_second) {
60 58 int64_t cur_pts = yadif->cur->pts;
61 58 int64_t next_pts = yadif->next->pts;
62
63
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 58 if (next_pts != AV_NOPTS_VALUE && cur_pts != AV_NOPTS_VALUE) {
64 58 yadif->out->pts = cur_pts + next_pts;
65
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 58 if (yadif->pts_multiplier == 1) {
66 ✗ yadif->out->pts >>= 1;
67 ✗ yadif->out->duration >>= 1;
68 }
69 } else {
70 ✗ yadif->out->pts = AV_NOPTS_VALUE;
71 }
72 }
73
74 268 ff_ccfifo_inject(&yadif->cc_fifo, yadif->out);
75 268 ret = ff_filter_frame(ctx->outputs[0], yadif->out);
76
77
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 268 yadif->frame_pending = (yadif->mode&1) && !is_second;
78 268 return ret;
79 }
80
81 1071 static int checkstride(YADIFContext *yadif, const AVFrame *a, const AVFrame *b)
82 {
83 int i;
84
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 4284 for (i = 0; i < yadif->csp->nb_components; i++)
85
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 3213 if (a->linesize[i] != b->linesize[i])
86 ✗ return 1;
87 1071 return 0;
88 }
89
90 ✗ static void fixstride(AVFilterLink *link, AVFrame *f)
91 {
92 ✗ AVFrame *dst = ff_default_get_video_buffer(link, f->width, f->height);
93 ✗ if(!dst)
94 ✗ return;
95 ✗ av_frame_copy_props(dst, f);
96 ✗ av_image_copy2(dst->data, dst->linesize,
97 ✗ f->data, f->linesize,
98 ✗ dst->format, dst->width, dst->height);
99 ✗ av_frame_unref(f);
100 ✗ av_frame_move_ref(f, dst);
101 ✗ av_frame_free(&dst);
102 }
103
104 217 int ff_yadif_filter_frame(AVFilterLink *link, AVFrame *frame)
105 {
106 217 AVFilterContext *ctx = link->dst;
107 217 YADIFContext *yadif = ctx->priv;
108
109
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 217 av_assert0(frame);
110
111 217 ff_ccfifo_extract(&yadif->cc_fifo, frame);
112
113
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 217 if (yadif->frame_pending)
114 ✗ return_frame(ctx, 1);
115
116
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 217 if (yadif->prev)
117 203 av_frame_free(&yadif->prev);
118 217 yadif->prev = yadif->cur;
119 217 yadif->cur = yadif->next;
120 217 yadif->next = frame;
121
122
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 217 if (!yadif->cur) {
123 7 yadif->cur = av_frame_clone(yadif->next);
124
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 7 if (!yadif->cur)
125 ✗ return AVERROR(ENOMEM);
126 7 yadif->current_field = YADIF_FIELD_END;
127 }
128
129
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 217 if (checkstride(yadif, yadif->next, yadif->cur)) {
130 ✗ av_log(ctx, AV_LOG_VERBOSE, "Reallocating frame due to differing stride\n");
131 ✗ fixstride(link, yadif->next);
132 }
133
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 217 if (checkstride(yadif, yadif->next, yadif->cur))
134 ✗ fixstride(link, yadif->cur);
135
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 217 if (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))
136 ✗ fixstride(link, yadif->prev);
137
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 217 if (checkstride(yadif, yadif->next, yadif->cur) || (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))) {
138 ✗ av_log(ctx, AV_LOG_ERROR, "Failed to reallocate frame\n");
139 ✗ return -1;
140 }
141
142
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 217 if (!yadif->prev)
143 7 return 0;
144
145
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 210 if ((yadif->deint && !(yadif->cur->flags & AV_FRAME_FLAG_INTERLACED)) ||
146
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 210 ctx->is_disabled ||
147
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 210 (yadif->deint && !(yadif->prev->flags & AV_FRAME_FLAG_INTERLACED) && yadif->prev->repeat_pict) ||
148
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 210 (yadif->deint && !(yadif->next->flags & AV_FRAME_FLAG_INTERLACED) && yadif->next->repeat_pict)
149 ) {
150 ✗ yadif->out = av_frame_clone(yadif->cur);
151 ✗ if (!yadif->out)
152 ✗ return AVERROR(ENOMEM);
153
154 ✗ ff_ccfifo_inject(&yadif->cc_fifo, yadif->out);
155 ✗ av_frame_free(&yadif->prev);
156 ✗ if (yadif->out->pts != AV_NOPTS_VALUE)
157 ✗ yadif->out->pts *= yadif->pts_multiplier;
158 ✗ yadif->out->duration *= yadif->pts_multiplier;
159 ✗ return ff_filter_frame(ctx->outputs[0], yadif->out);
160 }
161
162 210 yadif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h);
163
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 210 if (!yadif->out)
164 ✗ return AVERROR(ENOMEM);
165
166 210 av_frame_copy_props(yadif->out, yadif->cur);
167 #if FF_API_INTERLACED_FRAME
168 FF_DISABLE_DEPRECATION_WARNINGS
169 210 yadif->out->interlaced_frame = 0;
170 FF_ENABLE_DEPRECATION_WARNINGS
171 #endif
172 210 yadif->out->flags &= ~AV_FRAME_FLAG_INTERLACED;
173
174
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 210 if (yadif->out->pts != AV_NOPTS_VALUE)
175 210 yadif->out->pts *= yadif->pts_multiplier;
176
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 210 if (!(yadif->mode & 1))
177 150 yadif->out->duration *= yadif->pts_multiplier;
178
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 60 else if (yadif->pts_multiplier == 1)
179 ✗ yadif->out->duration >>= 1;
180
181 210 return return_frame(ctx, 0);
182 }
183
184 268 int ff_yadif_request_frame(AVFilterLink *link)
185 {
186 268 AVFilterContext *ctx = link->src;
187 268 YADIFContext *yadif = ctx->priv;
188 int ret;
189
190
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 268 if (yadif->frame_pending) {
191 58 return_frame(ctx, 1);
192 58 return 0;
193 }
194
195
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 210 if (yadif->eof)
196 ✗ return AVERROR_EOF;
197
198 210 ret = ff_request_frame(ctx->inputs[0]);
199
200
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 210 if (ret == AVERROR_EOF && yadif->cur) {
201 ✗ AVFrame *next = av_frame_clone(yadif->next);
202
203 ✗ if (!next)
204 ✗ return AVERROR(ENOMEM);
205
206 ✗ yadif->current_field = YADIF_FIELD_BACK_END;
207 ✗ next->pts = yadif->next->pts * 2 - yadif->cur->pts;
208
209 ✗ ff_yadif_filter_frame(ctx->inputs[0], next);
210 ✗ yadif->eof = 1;
211
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 210 } else if (ret < 0) {
212 ✗ return ret;
213 }
214
215 210 return 0;
216 }
217
218 7 int ff_yadif_config_output_common(AVFilterLink *outlink)
219 {
220 7 AVFilterContext *ctx = outlink->src;
221 7 YADIFContext *yadif = ctx->priv;
222 7 AVRational tb = ctx->inputs[0]->time_base;
223 int ret;
224
225
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 7 if (av_reduce(&outlink->time_base.num, &outlink->time_base.den, tb.num, tb.den * 2LL, INT_MAX)) {
226 7 yadif->pts_multiplier = 2;
227 } else {
228 ✗ av_log(ctx, AV_LOG_WARNING, "Cannot use exact output timebase\n");
229 ✗ outlink->time_base = tb;
230 ✗ yadif->pts_multiplier = 1;
231 }
232
233 7 outlink->w = ctx->inputs[0]->w;
234 7 outlink->h = ctx->inputs[0]->h;
235
236
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 7 if (outlink->w < 3 || outlink->h < 3) {
237 ✗ av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n");
238 ✗ return AVERROR(EINVAL);
239 }
240
241
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 7 if(yadif->mode & 1)
242 2 outlink->frame_rate = av_mul_q(ctx->inputs[0]->frame_rate,
243 2 (AVRational){2, 1});
244 else
245 5 outlink->frame_rate = ctx->inputs[0]->frame_rate;
246
247 7 ret = ff_ccfifo_init(&yadif->cc_fifo, outlink->frame_rate, ctx);
248
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 7 if (ret < 0) {
249 ✗ av_log(ctx, AV_LOG_ERROR, "Failure to setup CC FIFO queue\n");
250 ✗ return ret;
251 }
252
253 7 return 0;
254 }
255
256 14 void ff_yadif_uninit(AVFilterContext *ctx)
257 {
258 14 YADIFContext *yadif = ctx->priv;
259
260 14 av_frame_free(&yadif->prev);
261 14 av_frame_free(&yadif->cur );
262 14 av_frame_free(&yadif->next);
263 14 ff_ccfifo_uninit(&yadif->cc_fifo);
264 14 }
265
266 #define OFFSET(x) offsetof(YADIFContext, x)
267 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
268
269 #define CONST(name, help, val, u) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, .unit = u }
270
271 const AVOption ff_yadif_options[] = {
272 { "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=YADIF_MODE_SEND_FRAME}, 0, 3, FLAGS, .unit = "mode"},
273 CONST("send_frame", "send one frame for each frame", YADIF_MODE_SEND_FRAME, "mode"),
274 CONST("send_field", "send one frame for each field", YADIF_MODE_SEND_FIELD, "mode"),
275 CONST("send_frame_nospatial", "send one frame for each frame, but skip spatial interlacing check", YADIF_MODE_SEND_FRAME_NOSPATIAL, "mode"),
276 CONST("send_field_nospatial", "send one frame for each field, but skip spatial interlacing check", YADIF_MODE_SEND_FIELD_NOSPATIAL, "mode"),
277
278 { "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=YADIF_PARITY_AUTO}, -1, 1, FLAGS, .unit = "parity" },
279 CONST("tff", "assume top field first", YADIF_PARITY_TFF, "parity"),
280 CONST("bff", "assume bottom field first", YADIF_PARITY_BFF, "parity"),
281 CONST("auto", "auto detect parity", YADIF_PARITY_AUTO, "parity"),
282
283 { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=YADIF_DEINT_ALL}, 0, 1, FLAGS, .unit = "deint" },
284 CONST("all", "deinterlace all frames", YADIF_DEINT_ALL, "deint"),
285 CONST("interlaced", "only deinterlace frames marked as interlaced", YADIF_DEINT_INTERLACED, "deint"),
286
287 { NULL }
288 };
289