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/opt.h"
33 #include "libavutil/pixdesc.h"
34 #include "internal.h"
35 #include "avfilter.h"
36 
37 #define MAX_LEVEL 8 /* quality levels */
38 #define BLOCK 16
39 
40 typedef struct USPPContext {
41  const AVClass *av_class;
43  int hsub, vsub;
44  int qp;
46  int temp_stride[3];
47  uint8_t *src[3];
48  uint16_t *temp[3];
57 } USPPContext;
58 
59 #define OFFSET(x) offsetof(USPPContext, x)
60 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
61 static const AVOption uspp_options[] = {
62  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
63  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
64  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
65  { NULL }
66 };
67 
69 
70 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
71  { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
72  { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
73  { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
74  { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
75  { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
76  { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
77  { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
78  { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
79 };
80 
81 static const uint8_t offset[511][2] = {
82  { 0, 0},
83  { 0, 0}, { 8, 8}, // quality 1
84  { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
85  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
86 
87  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
88  { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
89 
90  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
91  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
92  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
93  { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
94 
95  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
96  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
97  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
98  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
99  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
100  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
101  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
102  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
103 
104  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
105  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
106  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
107  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
108  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
109  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
110  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
111  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
112  { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
113  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
114  { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
115  { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
116  { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
117  { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
118  { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
119  { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
120 
121  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
122  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
123  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
124  { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
125  { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
126  { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
127  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
128  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
129  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
130  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
131  { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
132  { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
133  { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
134  { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
135  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
136  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
137  { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
138  { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
139  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
140  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
141  { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
142  { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
143  { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
144  { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
145  { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
146  { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
147  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
148  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
149  { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
150  { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
151  { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
152  { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
153 };
154 
155 static void store_slice_c(uint8_t *dst, const uint16_t *src,
156  int dst_stride, int src_stride,
157  int width, int height, int log2_scale)
158 {
159  int y, x;
160 
161 #define STORE(pos) do { \
162  temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
163  if (temp & 0x100) temp = ~(temp >> 31); \
164  dst[x + y * dst_stride + pos] = temp; \
165 } while (0)
166 
167  for (y = 0; y < height; y++) {
168  const uint8_t *d = dither[y&7];
169  for (x = 0; x < width; x += 8) {
170  int temp;
171  STORE(0);
172  STORE(1);
173  STORE(2);
174  STORE(3);
175  STORE(4);
176  STORE(5);
177  STORE(6);
178  STORE(7);
179  }
180  }
181 }
182 
183 static void filter(USPPContext *p, uint8_t *dst[3], uint8_t *src[3],
184  int dst_stride[3], int src_stride[3], int width,
185  int height, uint8_t *qp_store, int qp_stride)
186 {
187  int x, y, i, j;
188  const int count = 1<<p->log2_count;
189  int ret;
190 
191  for (i = 0; i < 3; i++) {
192  int is_chroma = !!i;
193  int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
194  int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
195  int stride = p->temp_stride[i];
196  int block = BLOCK >> (is_chroma ? p->hsub : 0);
197 
198  if (!src[i] || !dst[i])
199  continue;
200  for (y = 0; y < h; y++) {
201  int index = block + block * stride + y * stride;
202 
203  memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
204  for (x = 0; x < block; x++) {
205  p->src[i][index - x - 1] = p->src[i][index + x ];
206  p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
207  }
208  }
209  for (y = 0; y < block; y++) {
210  memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
211  memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
212  }
213 
214  p->frame->linesize[i] = stride;
215  memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
216  }
217 
218  if (p->qp)
219  p->frame->quality = p->qp * FF_QP2LAMBDA;
220  else {
221  int qpsum=0;
222  int qpcount = (height>>4) * (height>>4);
223 
224  for (y = 0; y < (height>>4); y++) {
225  for (x = 0; x < (width>>4); x++)
226  qpsum += qp_store[x + y * qp_stride];
227  }
228  p->frame->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
229  }
230 // init per MB qscale stuff FIXME
231  p->frame->height = height + BLOCK;
232  p->frame->width = width + BLOCK;
233 
234  for (i = 0; i < count; i++) {
235  const int x1 = offset[i+count-1][0];
236  const int y1 = offset[i+count-1][1];
237  const int x1c = x1 >> p->hsub;
238  const int y1c = y1 >> p->vsub;
239  const int BLOCKc = BLOCK >> p->hsub;
240  int offset;
241  AVPacket pkt = {0};
242  int got_pkt_ptr;
243 
244  av_init_packet(&pkt);
245  pkt.data = p->outbuf;
246  pkt.size = p->outbuf_size;
247 
248  p->frame->data[0] = p->src[0] + x1 + y1 * p->frame->linesize[0];
249  p->frame->data[1] = p->src[1] + x1c + y1c * p->frame->linesize[1];
250  p->frame->data[2] = p->src[2] + x1c + y1c * p->frame->linesize[2];
251  p->frame->format = p->avctx_enc[i]->pix_fmt;
252 
253  ret = avcodec_encode_video2(p->avctx_enc[i], &pkt, p->frame, &got_pkt_ptr);
254  if (ret < 0) {
255  av_log(p->avctx_enc[i], AV_LOG_ERROR, "Encoding failed\n");
256  continue;
257  }
258 
259  p->frame_dec = p->avctx_enc[i]->coded_frame;
260 
261  offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec->linesize[0];
262 
263  for (y = 0; y < height; y++)
264  for (x = 0; x < width; x++)
265  p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec->data[0][x + y * p->frame_dec->linesize[0] + offset];
266 
267  if (!src[2] || !dst[2])
268  continue;
269 
270  offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec->linesize[1];
271 
272  for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
273  for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
274  p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec->data[1][x + y * p->frame_dec->linesize[1] + offset];
275  p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec->data[2][x + y * p->frame_dec->linesize[2] + offset];
276  }
277  }
278  }
279 
280  for (j = 0; j < 3; j++) {
281  int is_chroma = !!j;
282  if (!dst[j])
283  continue;
284  store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
285  AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
286  AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
287  8-p->log2_count);
288  }
289 }
290 
292 {
293  static const enum AVPixelFormat pix_fmts[] = {
301  };
302 
303  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
304  if (!fmts_list)
305  return AVERROR(ENOMEM);
306  return ff_set_common_formats(ctx, fmts_list);
307 }
308 
310 {
311 
312  AVFilterContext *ctx = inlink->dst;
313  USPPContext *uspp = ctx->priv;
314  const int height = inlink->h;
315  const int width = inlink->w;
317  int i;
318 
320  if (!enc) {
321  av_log(ctx, AV_LOG_ERROR, "SNOW encoder not found.\n");
322  return AVERROR(EINVAL);
323  }
324 
325  uspp->hsub = desc->log2_chroma_w;
326  uspp->vsub = desc->log2_chroma_h;
327 
328  for (i = 0; i < 3; i++) {
329  int is_chroma = !!i;
330  int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
331  int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
332 
333  if (is_chroma) {
334  w = AV_CEIL_RSHIFT(w, uspp->hsub);
335  h = AV_CEIL_RSHIFT(h, uspp->vsub);
336  }
337 
338  uspp->temp_stride[i] = w;
339  if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
340  return AVERROR(ENOMEM);
341  if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
342  return AVERROR(ENOMEM);
343  }
344 
345  for (i = 0; i < (1<<uspp->log2_count); i++) {
348  int ret;
349 
350  if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
351  return AVERROR(ENOMEM);
352 
353  avctx_enc = uspp->avctx_enc[i];
354  avctx_enc->width = width + BLOCK;
355  avctx_enc->height = height + BLOCK;
356  avctx_enc->time_base = (AVRational){1,25}; // meaningless
357  avctx_enc->gop_size = INT_MAX;
358  avctx_enc->max_b_frames = 0;
359  avctx_enc->pix_fmt = inlink->format;
362  avctx_enc->global_quality = 123;
363  av_dict_set(&opts, "no_bitstream", "1", 0);
364  ret = avcodec_open2(avctx_enc, enc, &opts);
365  if (ret < 0)
366  return ret;
367  av_dict_free(&opts);
368  av_assert0(avctx_enc->codec);
369  }
370 
371  uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
372  if (!(uspp->frame = av_frame_alloc()))
373  return AVERROR(ENOMEM);
374  if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
375  return AVERROR(ENOMEM);
376 
377  return 0;
378 }
379 
381 {
382  AVFilterContext *ctx = inlink->dst;
383  USPPContext *uspp = ctx->priv;
384  AVFilterLink *outlink = ctx->outputs[0];
385  AVFrame *out = in;
386 
387  int qp_stride = 0;
388  uint8_t *qp_table = NULL;
389 
390  /* if we are not in a constant user quantizer mode and we don't want to use
391  * the quantizers from the B-frames (B-frames often have a higher QP), we
392  * need to save the qp table from the last non B-frame; this is what the
393  * following code block does */
394  if (!uspp->qp) {
395  qp_table = av_frame_get_qp_table(in, &qp_stride, &uspp->qscale_type);
396 
397  if (qp_table && !uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
398  int w, h;
399 
400  /* if the qp stride is not set, it means the QP are only defined on
401  * a line basis */
402  if (!qp_stride) {
403  w = AV_CEIL_RSHIFT(inlink->w, 4);
404  h = 1;
405  } else {
406  w = qp_stride;
407  h = AV_CEIL_RSHIFT(inlink->h, 4);
408  }
409 
410  if (w * h > uspp->non_b_qp_alloc_size) {
411  int ret = av_reallocp_array(&uspp->non_b_qp_table, w, h);
412  if (ret < 0) {
413  uspp->non_b_qp_alloc_size = 0;
414  return ret;
415  }
416  uspp->non_b_qp_alloc_size = w * h;
417  }
418 
419  av_assert0(w * h <= uspp->non_b_qp_alloc_size);
420  memcpy(uspp->non_b_qp_table, qp_table, w * h);
421  }
422  }
423 
424  if (uspp->log2_count && !ctx->is_disabled) {
425  if (!uspp->use_bframe_qp && uspp->non_b_qp_table)
426  qp_table = uspp->non_b_qp_table;
427 
428  if (qp_table || uspp->qp) {
429 
430  /* get a new frame if in-place is not possible or if the dimensions
431  * are not multiple of 8 */
432  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
433  const int aligned_w = FFALIGN(inlink->w, 8);
434  const int aligned_h = FFALIGN(inlink->h, 8);
435 
436  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
437  if (!out) {
438  av_frame_free(&in);
439  return AVERROR(ENOMEM);
440  }
441  av_frame_copy_props(out, in);
442  out->width = in->width;
443  out->height = in->height;
444  }
445 
446  filter(uspp, out->data, in->data, out->linesize, in->linesize,
447  inlink->w, inlink->h, qp_table, qp_stride);
448  }
449  }
450 
451  if (in != out) {
452  if (in->data[3])
453  av_image_copy_plane(out->data[3], out->linesize[3],
454  in ->data[3], in ->linesize[3],
455  inlink->w, inlink->h);
456  av_frame_free(&in);
457  }
458  return ff_filter_frame(outlink, out);
459 }
460 
462 {
463  USPPContext *uspp = ctx->priv;
464  int i;
465 
466  for (i = 0; i < 3; i++) {
467  av_freep(&uspp->temp[i]);
468  av_freep(&uspp->src[i]);
469  }
470 
471  for (i = 0; i < (1 << uspp->log2_count); i++) {
472  avcodec_close(uspp->avctx_enc[i]);
473  av_freep(&uspp->avctx_enc[i]);
474  }
475 
476  av_freep(&uspp->non_b_qp_table);
477  av_freep(&uspp->outbuf);
478  av_frame_free(&uspp->frame);
479 }
480 
481 static const AVFilterPad uspp_inputs[] = {
482  {
483  .name = "default",
484  .type = AVMEDIA_TYPE_VIDEO,
485  .config_props = config_input,
486  .filter_frame = filter_frame,
487  },
488  { NULL }
489 };
490 
491 static const AVFilterPad uspp_outputs[] = {
492  {
493  .name = "default",
494  .type = AVMEDIA_TYPE_VIDEO,
495  },
496  { NULL }
497 };
498 
500  .name = "uspp",
501  .description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
502  .priv_size = sizeof(USPPContext),
503  .uninit = uninit,
505  .inputs = uspp_inputs,
506  .outputs = uspp_outputs,
507  .priv_class = &uspp_class,
509 };
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2636
#define BLOCK
Definition: vf_uspp.c:38
int vsub
Definition: vf_uspp.c:43
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:1577
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_uspp.c:380
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:889
AVOption.
Definition: opt.h:246
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.
const char * desc
Definition: nvenc.c:68
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:1828
int size
Definition: avcodec.h:1481
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1778
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:56
AVCodec.
Definition: avcodec.h:3492
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:385
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:47
static const uint8_t dither[8][8]
Definition: vf_uspp.c:70
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1691
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
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:1093
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:82
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:189
int qscale_type
Definition: vf_uspp.c:45
AVOptions.
static const uint8_t offset[511][2]
Definition: vf_uspp.c:81
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:903
#define FLAGS
Definition: vf_uspp.c:60
int non_b_qp_alloc_size
Definition: vf_uspp.c:55
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:112
#define height
uint8_t * data
Definition: avcodec.h:1480
uint16_t * temp[3]
Definition: vf_uspp.c:48
AVFrame * frame_dec
Definition: vf_uspp.c:53
uint8_t * outbuf
Definition: vf_uspp.c:50
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:309
#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 avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:1095
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
int width
Definition: frame.h:353
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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:569
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:461
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
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:1648
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:183
const AVClass * av_class
Definition: vf_uspp.c:41
GLsizei count
Definition: opengl_enc.c:108
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Allocate, reallocate, or free an array through a pointer to a pointer.
Definition: mem.c:205
AVDictionary * opts
Definition: movenc.c:50
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:378
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:853
#define MAX_LEVEL
Definition: vf_uspp.c:37
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:156
#define width
int width
picture width / height.
Definition: avcodec.h:1741
AVCodecContext * avctx_enc[BLOCK *BLOCK]
Definition: vf_uspp.c:51
uint8_t w
Definition: llviddspenc.c:38
AVFormatContext * ctx
Definition: movenc.c:48
int temp_stride[3]
Definition: vf_uspp.c:46
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:481
int outbuf_size
Definition: vf_uspp.c:49
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:418
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:491
#define STORE(pos)
static const AVOption uspp_options[]
Definition: vf_uspp.c:61
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:368
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:326
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:1568
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:52
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:44
Filter definition.
Definition: avfilter.h:144
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:264
const char * name
Filter name.
Definition: avfilter.h:148
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:548
#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:133
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
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:397
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
#define OFFSET(x)
Definition: vf_uspp.c:59
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:1634
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static int query_formats(AVFilterContext *ctx)
Definition: vf_uspp.c:291
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
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:1763
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:43
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:2818
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:33
int log2_count
Definition: vf_uspp.c:42
AVFilter ff_vf_uspp
Definition: vf_uspp.c:499
A list of supported formats for one end of a filter link.
Definition: formats.h:64
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
An instance of a filter.
Definition: avfilter.h:338
int height
Definition: frame.h:353
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:338
#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
uint8_t * non_b_qp_table
Definition: vf_uspp.c:54
int8_t * av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
Definition: frame.c:90
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:155
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
This structure stores compressed data.
Definition: avcodec.h:1457
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:2631
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58