FFmpeg
vf_uspp.c
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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_internal.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "internal.h"
36 #include "qp_table.h"
37 #include "avfilter.h"
38 
39 #define MAX_LEVEL 8 /* quality levels */
40 #define BLOCK 16
41 
42 typedef struct USPPContext {
43  const AVClass *av_class;
45  int hsub, vsub;
46  int qp;
48  int temp_stride[3];
49  uint8_t *src[3];
50  uint16_t *temp[3];
56  int8_t *non_b_qp_table;
59 } USPPContext;
60 
61 #define OFFSET(x) offsetof(USPPContext, x)
62 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
63 static const AVOption uspp_options[] = {
64  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
65  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
66  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
67  { NULL }
68 };
69 
71 
72 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
73  { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
74  { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
75  { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
76  { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
77  { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
78  { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
79  { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
80  { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
81 };
82 
83 static const uint8_t offset[511][2] = {
84  { 0, 0},
85  { 0, 0}, { 8, 8}, // quality 1
86  { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
87  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
88 
89  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
90  { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
91 
92  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
93  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
94  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
95  { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
96 
97  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
98  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
99  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
100  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
101  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
102  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
103  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
104  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
105 
106  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
107  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
108  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
109  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
110  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
111  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
112  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
113  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
114  { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
115  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
116  { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
117  { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
118  { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
119  { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
120  { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
121  { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
122 
123  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
124  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
125  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
126  { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
127  { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
128  { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
129  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
130  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
131  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
132  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
133  { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
134  { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
135  { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
136  { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
137  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
138  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
139  { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
140  { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
141  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
142  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
143  { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
144  { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
145  { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
146  { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
147  { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
148  { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
149  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
150  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
151  { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
152  { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
153  { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
154  { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
155 };
156 
157 static void store_slice_c(uint8_t *dst, const uint16_t *src,
158  int dst_stride, int src_stride,
159  int width, int height, int log2_scale)
160 {
161  int y, x;
162 
163 #define STORE(pos) do { \
164  temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
165  if (temp & 0x100) temp = ~(temp >> 31); \
166  dst[x + y * dst_stride + pos] = temp; \
167 } while (0)
168 
169  for (y = 0; y < height; y++) {
170  const uint8_t *d = dither[y&7];
171  for (x = 0; x < width; x += 8) {
172  int temp;
173  STORE(0);
174  STORE(1);
175  STORE(2);
176  STORE(3);
177  STORE(4);
178  STORE(5);
179  STORE(6);
180  STORE(7);
181  }
182  }
183 }
184 
185 static void filter(USPPContext *p, uint8_t *dst[3], uint8_t *src[3],
186  int dst_stride[3], int src_stride[3], int width,
187  int height, uint8_t *qp_store, int qp_stride)
188 {
189  int x, y, i, j;
190  const int count = 1<<p->log2_count;
191  int ret;
192 
193  for (i = 0; i < 3; i++) {
194  int is_chroma = !!i;
195  int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
196  int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
197  int stride = p->temp_stride[i];
198  int block = BLOCK >> (is_chroma ? p->hsub : 0);
199 
200  if (!src[i] || !dst[i])
201  continue;
202  for (y = 0; y < h; y++) {
203  int index = block + block * stride + y * stride;
204 
205  memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
206  for (x = 0; x < block; x++) {
207  p->src[i][index - x - 1] = p->src[i][index + x ];
208  p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
209  }
210  }
211  for (y = 0; y < block; y++) {
212  memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
213  memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
214  }
215 
216  p->frame->linesize[i] = stride;
217  memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
218  }
219 
220  if (p->qp)
221  p->frame->quality = p->qp * FF_QP2LAMBDA;
222  else {
223  int qpsum=0;
224  int qpcount = (height>>4) * (height>>4);
225 
226  for (y = 0; y < (height>>4); y++) {
227  for (x = 0; x < (width>>4); x++)
228  qpsum += qp_store[x + y * qp_stride];
229  }
230  p->frame->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
231  }
232 // init per MB qscale stuff FIXME
233  p->frame->height = height + BLOCK;
234  p->frame->width = width + BLOCK;
235 
236  for (i = 0; i < count; i++) {
237  const int x1 = offset[i+count-1][0];
238  const int y1 = offset[i+count-1][1];
239  const int x1c = x1 >> p->hsub;
240  const int y1c = y1 >> p->vsub;
241  const int BLOCKc = BLOCK >> p->hsub;
242  int offset;
243  AVPacket pkt = {0};
244  int got_pkt_ptr;
245 
246  av_init_packet(&pkt);
247  pkt.data = p->outbuf;
248  pkt.size = p->outbuf_size;
249 
250  p->frame->data[0] = p->src[0] + x1 + y1 * p->frame->linesize[0];
251  p->frame->data[1] = p->src[1] + x1c + y1c * p->frame->linesize[1];
252  p->frame->data[2] = p->src[2] + x1c + y1c * p->frame->linesize[2];
253  p->frame->format = p->avctx_enc[i]->pix_fmt;
254 
255  ret = avcodec_encode_video2(p->avctx_enc[i], &pkt, p->frame, &got_pkt_ptr);
256  if (ret < 0) {
257  av_log(p->avctx_enc[i], AV_LOG_ERROR, "Encoding failed\n");
258  continue;
259  }
260 
261  p->frame_dec = p->avctx_enc[i]->coded_frame;
262 
263  offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec->linesize[0];
264 
265  for (y = 0; y < height; y++)
266  for (x = 0; x < width; x++)
267  p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec->data[0][x + y * p->frame_dec->linesize[0] + offset];
268 
269  if (!src[2] || !dst[2])
270  continue;
271 
272  offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec->linesize[1];
273 
274  for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
275  for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
276  p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec->data[1][x + y * p->frame_dec->linesize[1] + offset];
277  p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec->data[2][x + y * p->frame_dec->linesize[2] + offset];
278  }
279  }
280  }
281 
282  for (j = 0; j < 3; j++) {
283  int is_chroma = !!j;
284  if (!dst[j])
285  continue;
286  store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
287  AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
288  AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
289  8-p->log2_count);
290  }
291 }
292 
294 {
295  static const enum AVPixelFormat pix_fmts[] = {
303  };
304 
305  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
306  if (!fmts_list)
307  return AVERROR(ENOMEM);
308  return ff_set_common_formats(ctx, fmts_list);
309 }
310 
312 {
313 
314  AVFilterContext *ctx = inlink->dst;
315  USPPContext *uspp = ctx->priv;
316  const int height = inlink->h;
317  const int width = inlink->w;
319  int i;
320 
322  if (!enc) {
323  av_log(ctx, AV_LOG_ERROR, "SNOW encoder not found.\n");
324  return AVERROR(EINVAL);
325  }
326 
327  uspp->hsub = desc->log2_chroma_w;
328  uspp->vsub = desc->log2_chroma_h;
329 
330  for (i = 0; i < 3; i++) {
331  int is_chroma = !!i;
332  int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
333  int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
334 
335  if (is_chroma) {
336  w = AV_CEIL_RSHIFT(w, uspp->hsub);
337  h = AV_CEIL_RSHIFT(h, uspp->vsub);
338  }
339 
340  uspp->temp_stride[i] = w;
341  if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
342  return AVERROR(ENOMEM);
343  if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
344  return AVERROR(ENOMEM);
345  }
346 
347  for (i = 0; i < (1<<uspp->log2_count); i++) {
350  int ret;
351 
352  if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
353  return AVERROR(ENOMEM);
354 
355  avctx_enc = uspp->avctx_enc[i];
356  avctx_enc->width = width + BLOCK;
357  avctx_enc->height = height + BLOCK;
358  avctx_enc->time_base = (AVRational){1,25}; // meaningless
359  avctx_enc->gop_size = INT_MAX;
360  avctx_enc->max_b_frames = 0;
361  avctx_enc->pix_fmt = inlink->format;
364  avctx_enc->global_quality = 123;
365  av_dict_set(&opts, "no_bitstream", "1", 0);
366  ret = avcodec_open2(avctx_enc, enc, &opts);
367  av_dict_free(&opts);
368  if (ret < 0)
369  return ret;
370  av_assert0(avctx_enc->codec);
371  }
372 
373  uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
374  if (!(uspp->frame = av_frame_alloc()))
375  return AVERROR(ENOMEM);
376  if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
377  return AVERROR(ENOMEM);
378 
379  return 0;
380 }
381 
383 {
384  AVFilterContext *ctx = inlink->dst;
385  USPPContext *uspp = ctx->priv;
386  AVFilterLink *outlink = ctx->outputs[0];
387  AVFrame *out = in;
388 
389  int qp_stride = 0;
390  int8_t *qp_table = NULL;
391  int ret = 0;
392 
393  /* if we are not in a constant user quantizer mode and we don't want to use
394  * the quantizers from the B-frames (B-frames often have a higher QP), we
395  * need to save the qp table from the last non B-frame; this is what the
396  * following code block does */
397  if (!uspp->qp && (uspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
398  ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &uspp->qscale_type);
399  if (ret < 0) {
400  av_frame_free(&in);
401  return ret;
402  }
403 
404  if (!uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
405  av_freep(&uspp->non_b_qp_table);
406  uspp->non_b_qp_table = qp_table;
407  uspp->non_b_qp_stride = qp_stride;
408  }
409  }
410 
411  if (uspp->log2_count && !ctx->is_disabled) {
412  if (!uspp->use_bframe_qp && uspp->non_b_qp_table) {
413  qp_table = uspp->non_b_qp_table;
414  qp_stride = uspp->non_b_qp_stride;
415  }
416 
417  if (qp_table || uspp->qp) {
418 
419  /* get a new frame if in-place is not possible or if the dimensions
420  * are not multiple of 8 */
421  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
422  const int aligned_w = FFALIGN(inlink->w, 8);
423  const int aligned_h = FFALIGN(inlink->h, 8);
424 
425  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
426  if (!out) {
427  av_frame_free(&in);
428  return AVERROR(ENOMEM);
429  }
430  av_frame_copy_props(out, in);
431  out->width = in->width;
432  out->height = in->height;
433  }
434 
435  filter(uspp, out->data, in->data, out->linesize, in->linesize,
436  inlink->w, inlink->h, qp_table, qp_stride);
437  }
438  }
439 
440  if (in != out) {
441  if (in->data[3])
442  av_image_copy_plane(out->data[3], out->linesize[3],
443  in ->data[3], in ->linesize[3],
444  inlink->w, inlink->h);
445  av_frame_free(&in);
446  }
447  ret = ff_filter_frame(outlink, out);
448  if (qp_table != uspp->non_b_qp_table)
449  av_freep(&qp_table);
450  return ret;
451 }
452 
454 {
455  USPPContext *uspp = ctx->priv;
456  int i;
457 
458  for (i = 0; i < 3; i++) {
459  av_freep(&uspp->temp[i]);
460  av_freep(&uspp->src[i]);
461  }
462 
463  for (i = 0; i < (1 << uspp->log2_count); i++)
464  avcodec_free_context(&uspp->avctx_enc[i]);
465 
466  av_freep(&uspp->non_b_qp_table);
467  av_freep(&uspp->outbuf);
468  av_frame_free(&uspp->frame);
469 }
470 
471 static const AVFilterPad uspp_inputs[] = {
472  {
473  .name = "default",
474  .type = AVMEDIA_TYPE_VIDEO,
475  .config_props = config_input,
476  .filter_frame = filter_frame,
477  },
478  { NULL }
479 };
480 
481 static const AVFilterPad uspp_outputs[] = {
482  {
483  .name = "default",
484  .type = AVMEDIA_TYPE_VIDEO,
485  },
486  { NULL }
487 };
488 
490  .name = "uspp",
491  .description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
492  .priv_size = sizeof(USPPContext),
493  .uninit = uninit,
495  .inputs = uspp_inputs,
496  .outputs = uspp_outputs,
497  .priv_class = &uspp_class,
499 };
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:1601
#define BLOCK
Definition: vf_uspp.c:40
int vsub
Definition: vf_uspp.c:45
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:540
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_uspp.c:382
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
This structure describes decoded (raw) audio or video data.
Definition: frame.h:314
AVOption.
Definition: opt.h:248
const char * desc
Definition: libsvtav1.c:79
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
Main libavfilter public API header.
int max_b_frames
maximum number of B-frames between non-B-frames Note: The output will be delayed by max_b_frames+1 re...
Definition: avcodec.h:791
int size
Definition: packet.h:364
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:741
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
static AVPacket pkt
int use_bframe_qp
Definition: vf_uspp.c:58
AVCodec.
Definition: codec.h:190
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:388
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
uint8_t * src[3]
Definition: vf_uspp.c:49
static const uint8_t dither[8][8]
Definition: vf_uspp.c:72
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:654
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:287
const char * name
Pad name.
Definition: internal.h:60
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1094
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
#define av_cold
Definition: attributes.h:88
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
int qscale_type
Definition: vf_uspp.c:47
AVOptions.
static const uint8_t offset[511][2]
Definition: vf_uspp.c:83
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:325
#define FLAGS
Definition: vf_uspp.c:62
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:117
#define height
uint8_t * data
Definition: packet.h:363
uint16_t * temp[3]
Definition: vf_uspp.c:50
AVFrame * frame_dec
Definition: vf_uspp.c:55
uint8_t * outbuf
Definition: vf_uspp.c:52
int8_t * non_b_qp_table
Definition: vf_uspp.c:56
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:311
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
int width
Definition: frame.h:372
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:194
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:588
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table_h, int *qscale_type)
Extract a libpostproc-compatible QP table - an 8-bit QP value per 16x16 macroblock, stored in raster order - from AVVideoEncParams side data.
Definition: qp_table.c:30
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:453
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:115
void * priv
private data for use by the filter
Definition: avfilter.h:356
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:611
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:941
simple assert() macros that are a bit more flexible than ISO C assert().
static void filter(USPPContext *p, uint8_t *dst[3], uint8_t *src[3], int dst_stride[3], int src_stride[3], int width, int height, uint8_t *qp_store, int qp_stride)
Definition: vf_uspp.c:185
const AVClass * av_class
Definition: vf_uspp.c:43
GLsizei count
Definition: opengl_enc.c:108
AVDictionary * opts
Definition: movenc.c:50
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:397
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:275
#define MAX_LEVEL
Definition: vf_uspp.c:39
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:172
#define width
int width
picture width / height.
Definition: avcodec.h:704
AVCodecContext * avctx_enc[BLOCK *BLOCK]
Definition: vf_uspp.c:53
uint8_t w
Definition: llviddspenc.c:39
AVFormatContext * ctx
Definition: movenc.c:48
int temp_stride[3]
Definition: vf_uspp.c:48
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:471
int outbuf_size
Definition: vf_uspp.c:51
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:437
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:481
#define STORE(pos)
static const AVOption uspp_options[]
Definition: vf_uspp.c:63
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
if(ret)
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:387
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
Definition: options.c:187
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:345
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
main external API structure.
Definition: avcodec.h:531
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
AVFrame * frame
Definition: vf_uspp.c:54
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31))))#define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac){}void ff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map){AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);return NULL;}return ac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;}int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){int use_generic=1;int len=in->nb_samples;int p;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Describe the class of an AVClass context structure.
Definition: log.h:67
int qp
Definition: vf_uspp.c:46
Filter definition.
Definition: avfilter.h:145
int index
Definition: gxfenc.c:89
Rational number (pair of numerator and denominator).
Definition: rational.h:58
attribute_deprecated int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode a frame of video.
Definition: encode.c:452
const char * name
Filter name.
Definition: avfilter.h:149
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:544
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:134
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:353
int non_b_qp_stride
Definition: vf_uspp.c:57
static int ff_norm_qscale(int qscale, int type)
Normalize the qscale factor FIXME the H264 qscale is a log based scale, mpeg1/2 is not...
Definition: internal.h:351
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:303
#define OFFSET(x)
Definition: vf_uspp.c:61
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:597
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static int query_formats(AVFilterContext *ctx)
Definition: vf_uspp.c:293
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:328
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:726
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:104
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
Y , 8bpp.
Definition: pixfmt.h:74
int hsub
Definition: vf_uspp.c:45
Bi-dir predicted.
Definition: avutil.h:276
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1759
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:35
int log2_count
Definition: vf_uspp.c:44
AVFilter ff_vf_uspp
Definition: vf_uspp.c:489
A list of supported formats for one end of a filter link.
Definition: formats.h:65
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
An instance of a filter.
Definition: avfilter.h:341
int height
Definition: frame.h:372
FILE * out
Definition: movenc.c:54
#define av_freep(p)
#define av_malloc_array(a, b)
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:373
#define stride
AVFILTER_DEFINE_CLASS(uspp)
internal API functions
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
static void store_slice_c(uint8_t *dst, const uint16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale)
Definition: vf_uspp.c:157
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: packet.h:340
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1596
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
int i
Definition: input.c:407
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58