FFmpeg
vf_uspp.c
Go to the documentation of this file.
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 "libavcodec/avcodec.h"
36 #include "internal.h"
37 #include "qp_table.h"
38 #include "avfilter.h"
39 
40 #define MAX_LEVEL 8 /* quality levels */
41 #define BLOCK 16
42 
43 typedef struct USPPContext {
44  const AVClass *av_class;
46  int hsub, vsub;
47  int qp;
49  int temp_stride[3];
50  uint8_t *src[3];
51  uint16_t *temp[3];
53  uint8_t *outbuf;
58  int8_t *non_b_qp_table;
61 } USPPContext;
62 
63 #define OFFSET(x) offsetof(USPPContext, x)
64 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
65 static const AVOption uspp_options[] = {
66  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
67  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
68  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
69  { NULL }
70 };
71 
73 
74 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
75  { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
76  { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
77  { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
78  { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
79  { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
80  { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
81  { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
82  { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
83 };
84 
85 static const uint8_t offset[511][2] = {
86  { 0, 0},
87  { 0, 0}, { 8, 8}, // quality 1
88  { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
89  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
90 
91  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
92  { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
93 
94  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
95  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
96  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
97  { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
98 
99  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
100  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
101  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
102  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
103  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
104  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
105  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
106  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
107 
108  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
109  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
110  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
111  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
112  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
113  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
114  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
115  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
116  { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
117  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
118  { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
119  { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
120  { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
121  { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
122  { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
123  { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
124 
125  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
126  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
127  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
128  { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
129  { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
130  { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
131  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
132  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
133  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
134  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
135  { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
136  { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
137  { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
138  { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
139  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
140  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
141  { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
142  { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
143  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
144  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
145  { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
146  { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
147  { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
148  { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
149  { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
150  { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
151  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
152  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
153  { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
154  { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
155  { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
156  { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
157 };
158 
159 static void store_slice_c(uint8_t *dst, const uint16_t *src,
160  int dst_stride, int src_stride,
161  int width, int height, int log2_scale)
162 {
163  int y, x;
164 
165 #define STORE(pos) do { \
166  temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
167  if (temp & 0x100) temp = ~(temp >> 31); \
168  dst[x + y * dst_stride + pos] = temp; \
169 } while (0)
170 
171  for (y = 0; y < height; y++) {
172  const uint8_t *d = dither[y&7];
173  for (x = 0; x < width; x += 8) {
174  int temp;
175  STORE(0);
176  STORE(1);
177  STORE(2);
178  STORE(3);
179  STORE(4);
180  STORE(5);
181  STORE(6);
182  STORE(7);
183  }
184  }
185 }
186 
187 static void filter(USPPContext *p, uint8_t *dst[3], uint8_t *src[3],
188  int dst_stride[3], int src_stride[3], int width,
189  int height, uint8_t *qp_store, int qp_stride)
190 {
191  int x, y, i, j;
192  const int count = 1<<p->log2_count;
193  int ret;
194 
195  for (i = 0; i < 3; i++) {
196  int is_chroma = !!i;
197  int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
198  int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
199  int stride = p->temp_stride[i];
200  int block = BLOCK >> (is_chroma ? p->hsub : 0);
201 
202  if (!src[i] || !dst[i])
203  continue;
204  for (y = 0; y < h; y++) {
205  int index = block + block * stride + y * stride;
206 
207  memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
208  for (x = 0; x < block; x++) {
209  p->src[i][index - x - 1] = p->src[i][index + x ];
210  p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
211  }
212  }
213  for (y = 0; y < block; y++) {
214  memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
215  memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
216  }
217 
218  p->frame->linesize[i] = stride;
219  memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
220  }
221 
222  if (p->qp)
223  p->frame->quality = p->qp * FF_QP2LAMBDA;
224  else {
225  int qpsum=0;
226  int qpcount = (height>>4) * (height>>4);
227 
228  for (y = 0; y < (height>>4); y++) {
229  for (x = 0; x < (width>>4); x++)
230  qpsum += qp_store[x + y * qp_stride];
231  }
232  p->frame->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
233  }
234 // init per MB qscale stuff FIXME
235  p->frame->height = height + BLOCK;
236  p->frame->width = width + BLOCK;
237 
238  for (i = 0; i < count; i++) {
239  const int x1 = offset[i+count-1][0];
240  const int y1 = offset[i+count-1][1];
241  const int x1c = x1 >> p->hsub;
242  const int y1c = y1 >> p->vsub;
243  const int BLOCKc = BLOCK >> p->hsub;
244  int offset;
245  AVPacket *pkt = p->pkt;
246  int got_pkt_ptr;
247 
249  pkt->data = p->outbuf;
250  pkt->size = p->outbuf_size;
251 
252  p->frame->data[0] = p->src[0] + x1 + y1 * p->frame->linesize[0];
253  p->frame->data[1] = p->src[1] + x1c + y1c * p->frame->linesize[1];
254  p->frame->data[2] = p->src[2] + x1c + y1c * p->frame->linesize[2];
255  p->frame->format = p->avctx_enc[i]->pix_fmt;
256 
257  ret = avcodec_encode_video2(p->avctx_enc[i], pkt, p->frame, &got_pkt_ptr);
258  if (ret < 0) {
259  av_log(p->avctx_enc[i], AV_LOG_ERROR, "Encoding failed\n");
260  continue;
261  }
263 
264  p->frame_dec = p->avctx_enc[i]->coded_frame;
265 
266  offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec->linesize[0];
267 
268  for (y = 0; y < height; y++)
269  for (x = 0; x < width; x++)
270  p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec->data[0][x + y * p->frame_dec->linesize[0] + offset];
271 
272  if (!src[2] || !dst[2])
273  continue;
274 
275  offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec->linesize[1];
276 
277  for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
278  for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
279  p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec->data[1][x + y * p->frame_dec->linesize[1] + offset];
280  p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec->data[2][x + y * p->frame_dec->linesize[2] + offset];
281  }
282  }
283  }
284 
285  for (j = 0; j < 3; j++) {
286  int is_chroma = !!j;
287  if (!dst[j])
288  continue;
289  store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
290  AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
291  AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
292  8-p->log2_count);
293  }
294 }
295 
297 {
298  static const enum AVPixelFormat pix_fmts[] = {
306  };
307 
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++) {
348  AVCodecContext *avctx_enc;
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->pkt = av_packet_alloc()))
377  return AVERROR(ENOMEM);
378  if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
379  return AVERROR(ENOMEM);
380 
381  return 0;
382 }
383 
385 {
386  AVFilterContext *ctx = inlink->dst;
387  USPPContext *uspp = ctx->priv;
388  AVFilterLink *outlink = ctx->outputs[0];
389  AVFrame *out = in;
390 
391  int qp_stride = 0;
392  int8_t *qp_table = NULL;
393  int ret = 0;
394 
395  /* if we are not in a constant user quantizer mode and we don't want to use
396  * the quantizers from the B-frames (B-frames often have a higher QP), we
397  * need to save the qp table from the last non B-frame; this is what the
398  * following code block does */
399  if (!uspp->qp && (uspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
400  ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &uspp->qscale_type);
401  if (ret < 0) {
402  av_frame_free(&in);
403  return ret;
404  }
405 
406  if (!uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
407  av_freep(&uspp->non_b_qp_table);
408  uspp->non_b_qp_table = qp_table;
409  uspp->non_b_qp_stride = qp_stride;
410  }
411  }
412 
413  if (uspp->log2_count && !ctx->is_disabled) {
414  if (!uspp->use_bframe_qp && uspp->non_b_qp_table) {
415  qp_table = uspp->non_b_qp_table;
416  qp_stride = uspp->non_b_qp_stride;
417  }
418 
419  if (qp_table || uspp->qp) {
420 
421  /* get a new frame if in-place is not possible or if the dimensions
422  * are not multiple of 8 */
423  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
424  const int aligned_w = FFALIGN(inlink->w, 8);
425  const int aligned_h = FFALIGN(inlink->h, 8);
426 
427  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
428  if (!out) {
429  av_frame_free(&in);
430  if (qp_table != uspp->non_b_qp_table)
431  av_free(qp_table);
432  return AVERROR(ENOMEM);
433  }
435  out->width = in->width;
436  out->height = in->height;
437  }
438 
439  filter(uspp, out->data, in->data, out->linesize, in->linesize,
440  inlink->w, inlink->h, qp_table, qp_stride);
441  }
442  }
443 
444  if (in != out) {
445  if (in->data[3])
446  av_image_copy_plane(out->data[3], out->linesize[3],
447  in ->data[3], in ->linesize[3],
448  inlink->w, inlink->h);
449  av_frame_free(&in);
450  }
451  ret = ff_filter_frame(outlink, out);
452  if (qp_table != uspp->non_b_qp_table)
453  av_freep(&qp_table);
454  return ret;
455 }
456 
458 {
459  USPPContext *uspp = ctx->priv;
460  int i;
461 
462  for (i = 0; i < 3; i++) {
463  av_freep(&uspp->temp[i]);
464  av_freep(&uspp->src[i]);
465  }
466 
467  for (i = 0; i < (1 << uspp->log2_count); i++)
469 
470  av_freep(&uspp->non_b_qp_table);
471  av_freep(&uspp->outbuf);
472  av_packet_free(&uspp->pkt);
473  av_frame_free(&uspp->frame);
474 }
475 
476 static const AVFilterPad uspp_inputs[] = {
477  {
478  .name = "default",
479  .type = AVMEDIA_TYPE_VIDEO,
480  .config_props = config_input,
481  .filter_frame = filter_frame,
482  },
483 };
484 
485 static const AVFilterPad uspp_outputs[] = {
486  {
487  .name = "default",
488  .type = AVMEDIA_TYPE_VIDEO,
489  },
490 };
491 
493  .name = "uspp",
494  .description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
495  .priv_size = sizeof(USPPContext),
496  .uninit = uninit,
500  .priv_class = &uspp_class,
502 };
STORE
#define STORE(pos)
ff_get_video_buffer
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:98
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:457
USPPContext::src
uint8_t * src[3]
Definition: vf_uspp.c:50
USPPContext::frame
AVFrame * frame
Definition: vf_uspp.c:56
USPPContext::qp
int qp
Definition: vf_uspp.c:47
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:417
AVCodec
AVCodec.
Definition: codec.h:202
stride
int stride
Definition: mace.c:144
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_uspp.c:384
USPPContext::avctx_enc
AVCodecContext * avctx_enc[BLOCK *BLOCK]
Definition: vf_uspp.c:54
qp_table.h
AVERROR
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
opt.h
mem_internal.h
out
FILE * out
Definition: movenc.c:54
FF_COMPLIANCE_EXPERIMENTAL
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:1285
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1019
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2540
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:210
USPPContext::temp
uint16_t * temp[3]
Definition: vf_uspp.c:51
inlink
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
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:112
avcodec_find_encoder
const AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:912
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:303
pixdesc.h
index
fg index
Definition: ffmpeg_filter.c:168
AVFrame::width
int width
Definition: frame.h:361
w
uint8_t w
Definition: llviddspenc.c:38
AVPacket::data
uint8_t * data
Definition: packet.h:373
AVOption
AVOption.
Definition: opt.h:247
BLOCK
#define BLOCK
Definition: vf_uspp.c:41
offset
static const uint8_t offset[511][2]
Definition: vf_uspp.c:85
AVDictionary
Definition: dict.c:30
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:311
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:153
USPPContext::vsub
int vsub
Definition: vf_uspp.c:46
av_packet_free
void av_packet_free(AVPacket **pkt)
Free the packet, if the packet is reference counted, it will be unreferenced first.
Definition: avpacket.c:75
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
av_image_copy_plane
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:374
USPPContext::use_bframe_qp
int use_bframe_qp
Definition: vf_uspp.c:60
USPPContext::qscale_type
int qscale_type
Definition: vf_uspp.c:48
AVCodecContext::codec
const struct AVCodec * codec
Definition: avcodec.h:392
ff_norm_qscale
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: qp_table.h:39
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:463
AV_CODEC_FLAG_LOW_DELAY
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:264
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:50
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:99
avassert.h
pkt
AVPacket * pkt
Definition: movenc.c:59
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
store_slice_c
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:159
uspp_outputs
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:485
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:141
width
#define width
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:449
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:51
ff_set_common_formats_from_list
int ff_set_common_formats_from_list(AVFilterContext *ctx, const int *fmts)
Equivalent to ff_set_common_formats(ctx, ff_make_format_list(fmts))
Definition: formats.c:703
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:290
ctx
AVFormatContext * ctx
Definition: movenc.c:48
USPPContext::non_b_qp_stride
int non_b_qp_stride
Definition: vf_uspp.c:59
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:152
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
if
if(ret)
Definition: filter_design.txt:179
opts
AVDictionary * opts
Definition: movenc.c:50
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
av_frame_copy_props
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:537
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(uspp)
avcodec_free_context
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:156
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
USPPContext::log2_count
int log2_count
Definition: vf_uspp.c:45
src
#define src
Definition: vp8dsp.c:255
USPPContext::pkt
AVPacket * pkt
Definition: vf_uspp.c:55
avcodec_open2
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: avcodec.c:137
dither
static const uint8_t dither[8][8]
Definition: vf_uspp.c:74
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AVCodecContext::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition: avcodec.h:506
USPPContext::outbuf
uint8_t * outbuf
Definition: vf_uspp.c:53
AVFrame::pict_type
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:386
AVPacket::size
int size
Definition: packet.h:374
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:578
USPPContext::av_class
const AVClass * av_class
Definition: vf_uspp.c:44
AVFrame::quality
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:417
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:473
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:376
height
#define height
av_packet_alloc
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:64
av_dict_free
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
Definition: dict.c:203
internal.h
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:116
i
int i
Definition: input.c:406
USPPContext::frame_dec
AVFrame * frame_dec
Definition: vf_uspp.c:57
MAX_LEVEL
#define MAX_LEVEL
Definition: vf_uspp.c:40
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:56
AVCodecContext::height
int height
Definition: avcodec.h:556
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:593
avcodec.h
USPPContext
Definition: vf_uspp.c:43
AVFilter
Filter definition.
Definition: avfilter.h:149
ret
ret
Definition: filter_design.txt:187
AVCodecContext::strict_std_compliance
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1280
uspp_options
static const AVOption uspp_options[]
Definition: vf_uspp.c:65
AVCodecContext
main external API structure.
Definition: avcodec.h:383
AVFrame::height
int height
Definition: frame.h:361
AV_CODEC_ID_SNOW
@ AV_CODEC_ID_SNOW
Definition: codec_id.h:262
uspp_inputs
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:476
AV_PICTURE_TYPE_B
@ AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition: avutil.h:276
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
avfilter.h
temp
else temp
Definition: vf_mcdeint.c:256
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_uspp.c:296
filter
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:187
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFilterContext
An instance of a filter.
Definition: avfilter.h:346
USPPContext::non_b_qp_table
int8_t * non_b_qp_table
Definition: vf_uspp.c:58
desc
const char * desc
Definition: libsvtav1.c:79
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVCodecContext::max_b_frames
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:655
FLAGS
#define FLAGS
Definition: vf_uspp.c:64
ff_qp_table_extract
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,...
Definition: qp_table.c:30
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AVPacket
This structure stores compressed data.
Definition: packet.h:350
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
av_dict_set
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
d
d
Definition: ffmpeg_filter.c:156
USPPContext::outbuf_size
int outbuf_size
Definition: vf_uspp.c:52
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:556
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#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:138
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:334
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
h
h
Definition: vp9dsp_template.c:2038
OFFSET
#define OFFSET(x)
Definition: vf_uspp.c:63
FF_QP2LAMBDA
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
ff_vf_uspp
const AVFilter ff_vf_uspp
Definition: vf_uspp.c:492
USPPContext::hsub
int hsub
Definition: vf_uspp.c:46
USPPContext::temp_stride
int temp_stride[3]
Definition: vf_uspp.c:49