FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_uspp.c
Date: 2026-04-24 19:58:39
Exec Total Coverage
Lines: 0 239 0.0%
Functions: 0 6 0.0%
Branches: 0 156 0.0%
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1 /*
2 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
3 * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (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
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 */
21
22 /**
23 * @file
24 * Ultra Slow/Simple Post-processing filter.
25 *
26 * Originally written by Michael Niedermayer for the MPlayer project, and
27 * ported by Arwa Arif for FFmpeg.
28 */
29
30 #include "libavutil/avassert.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/mem_internal.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/pixdesc.h"
36 #include "libavutil/video_enc_params.h"
37 #include "libavcodec/avcodec.h"
38
39 #include "filters.h"
40 #include "qp_table.h"
41 #include "avfilter.h"
42 #include "video.h"
43
44 #define MAX_LEVEL 8 /* quality levels */
45 #define BLOCK 16
46
47 typedef struct USPPContext {
48 const AVClass *av_class;
49 int log2_count;
50 int count;
51 int hsub, vsub;
52 int qp;
53 char *codec_name;
54 enum AVVideoEncParamsType qscale_type;
55 int temp_stride[3];
56 uint8_t *src[3];
57 uint16_t *temp[3];
58 int outbuf_size;
59 uint8_t *outbuf;
60 AVCodecContext *avctx_enc[BLOCK*BLOCK];
61 AVCodecContext *avctx_dec[BLOCK*BLOCK];
62 AVPacket *pkt [BLOCK*BLOCK];
63 AVFrame *frame [BLOCK*BLOCK];
64 AVFrame *frame_dec [BLOCK*BLOCK];
65 int8_t *non_b_qp_table;
66 int non_b_qp_stride;
67 int use_bframe_qp;
68 int quality;
69 } USPPContext;
70
71 #define OFFSET(x) offsetof(USPPContext, x)
72 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
73 static const AVOption uspp_options[] = {
74 { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
75 { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
76 { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
77 { "codec", "Codec name", OFFSET(codec_name), AV_OPT_TYPE_STRING, {.str = "snow"}, 0, 0, FLAGS },
78 { NULL }
79 };
80
81 AVFILTER_DEFINE_CLASS(uspp);
82
83 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
84 { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
85 { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
86 { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
87 { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
88 { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
89 { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
90 { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
91 { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
92 };
93
94 static const uint8_t offset[511][2] = {
95 { 0, 0},
96 { 0, 0}, { 8, 8}, // quality 1
97 { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
98 { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
99
100 { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
101 { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
102
103 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
104 { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
105 { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
106 { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
107
108 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
109 { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
110 { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
111 { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
112 { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
113 { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
114 { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
115 { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
116
117 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
118 { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
119 { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
120 { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
121 { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
122 { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
123 { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
124 { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
125 { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
126 { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
127 { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
128 { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
129 { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
130 { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
131 { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
132 { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
133
134 { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
135 { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
136 { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
137 { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
138 { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
139 { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
140 { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
141 { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
142 { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
143 { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
144 { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
145 { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
146 { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
147 { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
148 { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
149 { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
150 { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
151 { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
152 { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
153 { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
154 { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
155 { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
156 { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
157 { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
158 { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
159 { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
160 { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
161 { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
162 { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
163 { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
164 { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
165 { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
166 };
167
168 ✗ static void store_slice_c(uint8_t *dst, const uint16_t *src,
169 int dst_stride, int src_stride,
170 int width, int height, int log2_scale)
171 {
172 int y, x;
173
174 #define STORE(pos) do { \
175 temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
176 if (temp & 0x100) temp = ~(temp >> 31); \
177 dst[x + y * dst_stride + pos] = temp; \
178 } while (0)
179
180 ✗ for (y = 0; y < height; y++) {
181 ✗ const uint8_t *d = dither[y&7];
182 ✗ for (x = 0; x < width; x += 8) {
183 int temp;
184 ✗ STORE(0);
185 ✗ STORE(1);
186 ✗ STORE(2);
187 ✗ STORE(3);
188 ✗ STORE(4);
189 ✗ STORE(5);
190 ✗ STORE(6);
191 ✗ STORE(7);
192 }
193 }
194 ✗ }
195
196 ✗ static int filter_1phase(AVFilterContext *ctx, void *arg, int i, int nb_jobs)
197 {
198 ✗ USPPContext *p = ctx->priv;
199 int ret, x, y;
200 ✗ int width = ctx->inputs[0]->w;
201 ✗ int height = ctx->inputs[0]->h;
202
203 ✗ const int x1 = offset[i+nb_jobs-1][0];
204 ✗ const int y1 = offset[i+nb_jobs-1][1];
205 ✗ const int x1c = x1 >> p->hsub;
206 ✗ const int y1c = y1 >> p->vsub;
207 ✗ const int BLOCKc = BLOCK >> p->hsub;
208 int offset;
209 ✗ AVPacket *pkt = p->pkt[i];
210
211 ✗ av_packet_unref(pkt);
212 ✗ pkt->data = p->outbuf;
213 ✗ pkt->size = p->outbuf_size;
214
215 ✗ p->frame[i]->linesize[0] = p->temp_stride[0];
216 ✗ p->frame[i]->linesize[1] = p->temp_stride[1];
217 ✗ p->frame[i]->linesize[2] = p->temp_stride[2];
218 ✗ p->frame[i]->height = height + BLOCK;
219 ✗ p->frame[i]->width = width + BLOCK;
220 ✗ p->frame[i]->data[0] = p->src[0] + x1 + y1 * p->frame[i]->linesize[0];
221 ✗ p->frame[i]->data[1] = p->src[1] + x1c + y1c * p->frame[i]->linesize[1];
222 ✗ p->frame[i]->data[2] = p->src[2] + x1c + y1c * p->frame[i]->linesize[2];
223 ✗ p->frame[i]->format = p->avctx_enc[i]->pix_fmt;
224 ✗ p->frame[i]->quality = p->quality;
225
226 ✗ ret = avcodec_send_frame(p->avctx_enc[i], p->frame[i]);
227 ✗ if (ret < 0) {
228 ✗ av_log(p->avctx_enc[i], AV_LOG_ERROR, "Error sending a frame for encoding\n");
229 ✗ return ret;
230 }
231 ✗ ret = avcodec_receive_packet(p->avctx_enc[i], pkt);
232 ✗ if (ret < 0) {
233 ✗ av_log(p->avctx_enc[i], AV_LOG_ERROR, "Error receiving a packet from encoding\n");
234 ✗ return ret;
235 }
236
237 ✗ if (p->avctx_enc[i]->flags & AV_CODEC_FLAG_RECON_FRAME) {
238 ✗ av_packet_unref(pkt);
239 ✗ ret = avcodec_receive_frame(p->avctx_enc[i], p->frame_dec[i]);
240 ✗ if (ret < 0) {
241 ✗ av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error receiving a frame from encoding\n");
242 ✗ return ret;
243 }
244 } else {
245 ✗ ret = avcodec_send_packet(p->avctx_dec[i], pkt);
246 ✗ av_packet_unref(pkt);
247 ✗ if (ret < 0) {
248 ✗ av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error sending a packet for decoding\n");
249 ✗ return ret;
250 }
251 ✗ ret = avcodec_receive_frame(p->avctx_dec[i], p->frame_dec[i]);
252 ✗ if (ret < 0) {
253 ✗ av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error receiving a frame from decoding\n");
254 ✗ return ret;
255 }
256 }
257
258 ✗ offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec[i]->linesize[0];
259
260 ✗ for (y = 0; y < height; y++)
261 ✗ for (x = 0; x < width; x++)
262 ✗ p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec[i]->data[0][x + y * p->frame_dec[i]->linesize[0] + offset];
263
264
265 ✗ if (!p->frame_dec[i]->data[2] || !p->temp[2])
266 ✗ return 0;
267
268 ✗ offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec[i]->linesize[1];
269
270 ✗ for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
271 ✗ for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
272 ✗ p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec[i]->data[1][x + y * p->frame_dec[i]->linesize[1] + offset];
273 ✗ p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec[i]->data[2][x + y * p->frame_dec[i]->linesize[2] + offset];
274 }
275 }
276
277 ✗ return 0;
278 }
279
280 ✗ static void filter(AVFilterContext *ctx, uint8_t *dst[3], uint8_t *src[3],
281 int dst_stride[3], int src_stride[3], int width,
282 int height, uint8_t *qp_store, int qp_stride)
283 {
284 ✗ USPPContext *p = ctx->priv;
285 int x, y, i, j;
286
287 ✗ for (i = 0; i < 3; i++) {
288 ✗ int is_chroma = !!i;
289 ✗ int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
290 ✗ int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
291 ✗ int stride = p->temp_stride[i];
292 ✗ int block = BLOCK >> (is_chroma ? p->hsub : 0);
293
294 ✗ if (!src[i] || !dst[i])
295 ✗ continue;
296 ✗ for (y = 0; y < h; y++) {
297 ✗ int index = block + block * stride + y * stride;
298
299 ✗ memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
300 ✗ for (x = 0; x < block; x++) {
301 ✗ p->src[i][index - x - 1] = p->src[i][index + x ];
302 ✗ p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
303 }
304 }
305 ✗ for (y = 0; y < block; y++) {
306 ✗ memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
307 ✗ memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
308 }
309
310 ✗ memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
311 }
312
313 ✗ if (p->qp)
314 ✗ p->quality = p->qp * FF_QP2LAMBDA;
315 else {
316 ✗ int qpsum=0;
317 ✗ int qpcount = (height>>4) * (height>>4);
318
319 ✗ for (y = 0; y < (height>>4); y++) {
320 ✗ for (x = 0; x < (width>>4); x++)
321 ✗ qpsum += qp_store[x + y * qp_stride];
322 }
323 ✗ p->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
324 }
325 // init per MB qscale stuff FIXME
326
327 ✗ ff_filter_execute(ctx, filter_1phase, NULL, NULL, p->count);
328
329 ✗ for (j = 0; j < 3; j++) {
330 ✗ int is_chroma = !!j;
331 ✗ if (!dst[j])
332 ✗ continue;
333 ✗ store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
334 ✗ AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
335 ✗ AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
336 ✗ 8-p->log2_count);
337 }
338 ✗ }
339
340 static const enum AVPixelFormat pix_fmts[] = {
341 AV_PIX_FMT_YUV444P,
342 AV_PIX_FMT_YUV420P,
343 AV_PIX_FMT_YUV410P,
344 AV_PIX_FMT_YUVJ444P,
345 AV_PIX_FMT_YUVJ420P,
346 AV_PIX_FMT_GRAY8,
347 AV_PIX_FMT_NONE
348 };
349
350 ✗ static int config_input(AVFilterLink *inlink)
351 {
352
353 ✗ AVFilterContext *ctx = inlink->dst;
354 ✗ USPPContext *uspp = ctx->priv;
355 ✗ const int height = inlink->h;
356 ✗ const int width = inlink->w;
357 ✗ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
358 int i;
359 ✗ const AVCodec *enc = avcodec_find_encoder_by_name(uspp->codec_name);
360 ✗ const AVCodec *dec = avcodec_find_decoder_by_name(uspp->codec_name);
361 ✗ if (!enc) {
362 ✗ av_log(ctx, AV_LOG_ERROR, "encoder %s not found.\n", uspp->codec_name);
363 ✗ return AVERROR(EINVAL);
364 }
365 ✗ if (!dec) {
366 ✗ av_log(ctx, AV_LOG_ERROR, "decoder %s not found.\n", uspp->codec_name);
367 ✗ return AVERROR(EINVAL);
368 }
369
370 ✗ uspp->hsub = desc->log2_chroma_w;
371 ✗ uspp->vsub = desc->log2_chroma_h;
372 ✗ uspp->count = 1<<uspp->log2_count;
373
374 ✗ for (i = 0; i < 3; i++) {
375 ✗ int is_chroma = !!i;
376 ✗ int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
377 ✗ int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
378
379 ✗ if (is_chroma) {
380 ✗ w = AV_CEIL_RSHIFT(w, uspp->hsub);
381 ✗ h = AV_CEIL_RSHIFT(h, uspp->vsub);
382 }
383
384 ✗ uspp->temp_stride[i] = w;
385 ✗ if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
386 ✗ return AVERROR(ENOMEM);
387 ✗ if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
388 ✗ return AVERROR(ENOMEM);
389 }
390
391 ✗ for (i = 0; i < uspp->count; i++) {
392 AVCodecContext *avctx_enc, *avctx_dec;
393 ✗ AVDictionary *opts = NULL;
394 int ret;
395
396 ✗ if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
397 ✗ return AVERROR(ENOMEM);
398
399 ✗ avctx_enc = uspp->avctx_enc[i];
400 ✗ avctx_enc->width = width + BLOCK;
401 ✗ avctx_enc->height = height + BLOCK;
402 ✗ avctx_enc->time_base = (AVRational){1,25}; // meaningless
403 ✗ avctx_enc->gop_size = INT_MAX;
404 ✗ avctx_enc->max_b_frames = 0;
405 ✗ avctx_enc->pix_fmt = inlink->format;
406 ✗ avctx_enc->flags = AV_CODEC_FLAG_QSCALE | AV_CODEC_FLAG_LOW_DELAY;
407 ✗ if (enc->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME) {
408 ✗ avctx_enc->flags |= AV_CODEC_FLAG_RECON_FRAME;
409 ✗ av_dict_set(&opts, "no_bitstream", "1", 0);
410 }
411 ✗ avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
412 ✗ avctx_enc->global_quality = 123;
413 ✗ avctx_enc->thread_count = 1; // We do threading in the filter with multiple codecs
414 ✗ ret = avcodec_open2(avctx_enc, enc, &opts);
415 ✗ av_dict_free(&opts);
416 ✗ if (ret < 0)
417 ✗ return ret;
418 ✗ av_assert0(avctx_enc->codec);
419
420
421 ✗ if (!(enc->capabilities & AV_CODEC_CAP_ENCODER_RECON_FRAME)) {
422 ✗ if (!(uspp->avctx_dec[i] = avcodec_alloc_context3(NULL)))
423 ✗ return AVERROR(ENOMEM);
424 ✗ avctx_dec = uspp->avctx_dec[i];
425 ✗ avctx_dec->width = avctx_enc->width;
426 ✗ avctx_dec->height = avctx_enc->height;
427 ✗ avctx_dec->thread_count = 1;
428 ✗ ret = avcodec_open2(avctx_dec, dec, NULL);
429 ✗ if (ret < 0)
430 ✗ return ret;
431 }
432
433 ✗ if (!(uspp->frame[i] = av_frame_alloc()))
434 ✗ return AVERROR(ENOMEM);
435 ✗ if (!(uspp->frame_dec[i] = av_frame_alloc()))
436 ✗ return AVERROR(ENOMEM);
437 ✗ if (!(uspp->pkt[i] = av_packet_alloc()))
438 ✗ return AVERROR(ENOMEM);
439 }
440
441 ✗ uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
442 ✗ if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
443 ✗ return AVERROR(ENOMEM);
444
445 ✗ return 0;
446 }
447
448 ✗ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
449 {
450 ✗ AVFilterContext *ctx = inlink->dst;
451 ✗ USPPContext *uspp = ctx->priv;
452 ✗ AVFilterLink *outlink = ctx->outputs[0];
453 ✗ AVFrame *out = in;
454
455 ✗ int qp_stride = 0;
456 ✗ int8_t *qp_table = NULL;
457 ✗ int ret = 0;
458
459 /* if we are not in a constant user quantizer mode and we don't want to use
460 * the quantizers from the B-frames (B-frames often have a higher QP), we
461 * need to save the qp table from the last non B-frame; this is what the
462 * following code block does */
463 ✗ if (!uspp->qp && (uspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
464 ✗ ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &uspp->qscale_type);
465 ✗ if (ret < 0) {
466 ✗ av_frame_free(&in);
467 ✗ return ret;
468 }
469
470 ✗ if (!uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
471 ✗ av_freep(&uspp->non_b_qp_table);
472 ✗ uspp->non_b_qp_table = qp_table;
473 ✗ uspp->non_b_qp_stride = qp_stride;
474 }
475 }
476
477 ✗ if (uspp->log2_count && !ctx->is_disabled) {
478 ✗ if (!uspp->use_bframe_qp && uspp->non_b_qp_table) {
479 ✗ qp_table = uspp->non_b_qp_table;
480 ✗ qp_stride = uspp->non_b_qp_stride;
481 }
482
483 ✗ if (qp_table || uspp->qp) {
484
485 /* get a new frame if in-place is not possible or if the dimensions
486 * are not multiple of 8 */
487 ✗ if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
488 ✗ const int aligned_w = FFALIGN(inlink->w, 8);
489 ✗ const int aligned_h = FFALIGN(inlink->h, 8);
490
491 ✗ out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
492 ✗ if (!out) {
493 ✗ av_frame_free(&in);
494 ✗ if (qp_table != uspp->non_b_qp_table)
495 ✗ av_free(qp_table);
496 ✗ return AVERROR(ENOMEM);
497 }
498 ✗ av_frame_copy_props(out, in);
499 ✗ out->width = in->width;
500 ✗ out->height = in->height;
501 }
502
503 ✗ filter(ctx, out->data, in->data, out->linesize, in->linesize,
504 inlink->w, inlink->h, qp_table, qp_stride);
505 }
506 }
507
508 ✗ if (in != out) {
509 ✗ if (in->data[3])
510 ✗ av_image_copy_plane(out->data[3], out->linesize[3],
511 ✗ in ->data[3], in ->linesize[3],
512 inlink->w, inlink->h);
513 ✗ av_frame_free(&in);
514 }
515 ✗ ret = ff_filter_frame(outlink, out);
516 ✗ if (qp_table != uspp->non_b_qp_table)
517 ✗ av_freep(&qp_table);
518 ✗ return ret;
519 }
520
521 ✗ static av_cold void uninit(AVFilterContext *ctx)
522 {
523 ✗ USPPContext *uspp = ctx->priv;
524 int i;
525
526 ✗ for (i = 0; i < 3; i++) {
527 ✗ av_freep(&uspp->temp[i]);
528 ✗ av_freep(&uspp->src[i]);
529 }
530
531 ✗ for (i = 0; i < uspp->count; i++) {
532 ✗ avcodec_free_context(&uspp->avctx_enc[i]);
533 ✗ avcodec_free_context(&uspp->avctx_dec[i]);
534 ✗ av_frame_free(&uspp->frame[i]);
535 ✗ av_frame_free(&uspp->frame_dec[i]);
536 ✗ av_packet_free(&uspp->pkt[i]);
537 }
538
539 ✗ av_freep(&uspp->non_b_qp_table);
540 ✗ av_freep(&uspp->outbuf);
541 ✗ }
542
543 static const AVFilterPad uspp_inputs[] = {
544 {
545 .name = "default",
546 .type = AVMEDIA_TYPE_VIDEO,
547 .config_props = config_input,
548 .filter_frame = filter_frame,
549 },
550 };
551
552 const FFFilter ff_vf_uspp = {
553 .p.name = "uspp",
554 .p.description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
555 .p.priv_class = &uspp_class,
556 .p.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
557 .priv_size = sizeof(USPPContext),
558 .uninit = uninit,
559 FILTER_INPUTS(uspp_inputs),
560 FILTER_OUTPUTS(ff_video_default_filterpad),
561 FILTER_PIXFMTS_ARRAY(pix_fmts),
562 };
563