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vf_spp.c
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1 /*
2  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (c) 2013 Clément Bœsch <u pkh me>
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  * Simple post processing filter
25  *
26  * This implementation is based on an algorithm described in
27  * "Aria Nosratinia Embedded Post-Processing for
28  * Enhancement of Compressed Images (1999)"
29  *
30  * Originally written by Michael Niedermayer for the MPlayer project, and
31  * ported by Clément Bœsch for FFmpeg.
32  */
33 
34 #include "libavutil/avassert.h"
35 #include "libavutil/imgutils.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/pixdesc.h"
38 #include "internal.h"
39 #include "vf_spp.h"
40 
41 enum mode {
45 };
46 
47 static const AVClass *child_class_next(const AVClass *prev)
48 {
49  return prev ? NULL : avcodec_dct_get_class();
50 }
51 
52 static void *child_next(void *obj, void *prev)
53 {
54  SPPContext *s = obj;
55  return prev ? NULL : s->dct;
56 }
57 
58 #define OFFSET(x) offsetof(SPPContext, x)
59 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
60 static const AVOption spp_options[] = {
61  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
62  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
63  { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_HARD}, 0, NB_MODES - 1, FLAGS, "mode" },
64  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, "mode" },
65  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, "mode" },
66  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS },
67  { NULL }
68 };
69 
70 static const AVClass spp_class = {
71  .class_name = "spp",
72  .item_name = av_default_item_name,
73  .option = spp_options,
74  .version = LIBAVUTIL_VERSION_INT,
75  .category = AV_CLASS_CATEGORY_FILTER,
76  .child_class_next = child_class_next,
78 };
79 
80 // XXX: share between filters?
81 DECLARE_ALIGNED(8, static const uint8_t, ldither)[8][8] = {
82  { 0, 48, 12, 60, 3, 51, 15, 63 },
83  { 32, 16, 44, 28, 35, 19, 47, 31 },
84  { 8, 56, 4, 52, 11, 59, 7, 55 },
85  { 40, 24, 36, 20, 43, 27, 39, 23 },
86  { 2, 50, 14, 62, 1, 49, 13, 61 },
87  { 34, 18, 46, 30, 33, 17, 45, 29 },
88  { 10, 58, 6, 54, 9, 57, 5, 53 },
89  { 42, 26, 38, 22, 41, 25, 37, 21 },
90 };
91 
92 static const uint8_t offset[127][2] = {
93  {0,0},
94  {0,0}, {4,4}, // quality = 1
95  {0,0}, {2,2}, {6,4}, {4,6}, // quality = 2
96  {0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7}, // quality = 3
97 
98  {0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3}, // quality = 4
99  {0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
100 
101  {0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7}, // quality = 5
102  {2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
103  {4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
104  {6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
105 
106  {0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2}, // quality = 6
107  {0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
108  {1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
109  {1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
110  {0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
111  {0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
112  {1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
113  {1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
114 };
115 
116 static void hardthresh_c(int16_t dst[64], const int16_t src[64],
117  int qp, const uint8_t *permutation)
118 {
119  int i;
120  int bias = 0; // FIXME
121 
122  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
123  unsigned threshold2 = threshold1 << 1;
124 
125  memset(dst, 0, 64 * sizeof(dst[0]));
126  dst[0] = (src[0] + 4) >> 3;
127 
128  for (i = 1; i < 64; i++) {
129  int level = src[i];
130  if (((unsigned)(level + threshold1)) > threshold2) {
131  const int j = permutation[i];
132  dst[j] = (level + 4) >> 3;
133  }
134  }
135 }
136 
137 static void softthresh_c(int16_t dst[64], const int16_t src[64],
138  int qp, const uint8_t *permutation)
139 {
140  int i;
141  int bias = 0; //FIXME
142 
143  unsigned threshold1 = qp * ((1<<4) - bias) - 1;
144  unsigned threshold2 = threshold1 << 1;
145 
146  memset(dst, 0, 64 * sizeof(dst[0]));
147  dst[0] = (src[0] + 4) >> 3;
148 
149  for (i = 1; i < 64; i++) {
150  int level = src[i];
151  if (((unsigned)(level + threshold1)) > threshold2) {
152  const int j = permutation[i];
153  if (level > 0) dst[j] = (level - threshold1 + 4) >> 3;
154  else dst[j] = (level + threshold1 + 4) >> 3;
155  }
156  }
157 }
158 
159 static void store_slice_c(uint8_t *dst, const int16_t *src,
160  int dst_linesize, int src_linesize,
161  int width, int height, int log2_scale,
162  const uint8_t dither[8][8])
163 {
164  int y, x;
165 
166 #define STORE(pos) do { \
167  temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
168  if (temp & 0x100) \
169  temp = ~(temp >> 31); \
170  dst[x + y*dst_linesize + pos] = temp; \
171 } while (0)
172 
173  for (y = 0; y < height; y++) {
174  const uint8_t *d = dither[y];
175  for (x = 0; x < width; x += 8) {
176  int temp;
177  STORE(0);
178  STORE(1);
179  STORE(2);
180  STORE(3);
181  STORE(4);
182  STORE(5);
183  STORE(6);
184  STORE(7);
185  }
186  }
187 }
188 
189 static void store_slice16_c(uint16_t *dst, const int16_t *src,
190  int dst_linesize, int src_linesize,
191  int width, int height, int log2_scale,
192  const uint8_t dither[8][8], int depth)
193 {
194  int y, x;
195  unsigned int mask = -1<<depth;
196 
197 #define STORE16(pos) do { \
198  temp = ((src[x + y*src_linesize + pos] << log2_scale) + (d[pos]>>1)) >> 5; \
199  if (temp & mask ) \
200  temp = ~(temp >> 31); \
201  dst[x + y*dst_linesize + pos] = temp; \
202 } while (0)
203 
204  for (y = 0; y < height; y++) {
205  const uint8_t *d = dither[y];
206  for (x = 0; x < width; x += 8) {
207  int temp;
208  STORE16(0);
209  STORE16(1);
210  STORE16(2);
211  STORE16(3);
212  STORE16(4);
213  STORE16(5);
214  STORE16(6);
215  STORE16(7);
216  }
217  }
218 }
219 
220 static inline void add_block(uint16_t *dst, int linesize, const int16_t block[64])
221 {
222  int y;
223 
224  for (y = 0; y < 8; y++) {
225  *(uint32_t *)&dst[0 + y*linesize] += *(uint32_t *)&block[0 + y*8];
226  *(uint32_t *)&dst[2 + y*linesize] += *(uint32_t *)&block[2 + y*8];
227  *(uint32_t *)&dst[4 + y*linesize] += *(uint32_t *)&block[4 + y*8];
228  *(uint32_t *)&dst[6 + y*linesize] += *(uint32_t *)&block[6 + y*8];
229  }
230 }
231 
232 static void filter(SPPContext *p, uint8_t *dst, uint8_t *src,
233  int dst_linesize, int src_linesize, int width, int height,
234  const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
235 {
236  int x, y, i;
237  const int count = 1 << p->log2_count;
238  const int linesize = is_luma ? p->temp_linesize : FFALIGN(width+16, 16);
239  DECLARE_ALIGNED(16, uint64_t, block_align)[32];
240  int16_t *block = (int16_t *)block_align;
241  int16_t *block2 = (int16_t *)(block_align + 16);
242  uint16_t *psrc16 = (uint16_t*)p->src;
243  const int sample_bytes = (depth+7) / 8;
244 
245  for (y = 0; y < height; y++) {
246  int index = 8 + 8*linesize + y*linesize;
247  memcpy(p->src + index*sample_bytes, src + y*src_linesize, width*sample_bytes);
248  if (sample_bytes == 1) {
249  for (x = 0; x < 8; x++) {
250  p->src[index - x - 1] = p->src[index + x ];
251  p->src[index + width + x ] = p->src[index + width - x - 1];
252  }
253  } else {
254  for (x = 0; x < 8; x++) {
255  psrc16[index - x - 1] = psrc16[index + x ];
256  psrc16[index + width + x ] = psrc16[index + width - x - 1];
257  }
258  }
259  }
260  for (y = 0; y < 8; y++) {
261  memcpy(p->src + ( 7-y)*linesize * sample_bytes, p->src + ( y+8)*linesize * sample_bytes, linesize * sample_bytes);
262  memcpy(p->src + (height+8+y)*linesize * sample_bytes, p->src + (height-y+7)*linesize * sample_bytes, linesize * sample_bytes);
263  }
264 
265  for (y = 0; y < height + 8; y += 8) {
266  memset(p->temp + (8 + y) * linesize, 0, 8 * linesize * sizeof(*p->temp));
267  for (x = 0; x < width + 8; x += 8) {
268  int qp;
269 
270  if (p->qp) {
271  qp = p->qp;
272  } else{
273  const int qps = 3 + is_luma;
274  qp = qp_table[(FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
275  qp = FFMAX(1, ff_norm_qscale(qp, p->qscale_type));
276  }
277  for (i = 0; i < count; i++) {
278  const int x1 = x + offset[i + count - 1][0];
279  const int y1 = y + offset[i + count - 1][1];
280  const int index = x1 + y1*linesize;
281  p->dct->get_pixels(block, p->src + sample_bytes*index, sample_bytes*linesize);
282  p->dct->fdct(block);
283  p->requantize(block2, block, qp, p->dct->idct_permutation);
284  p->dct->idct(block2);
285  add_block(p->temp + index, linesize, block2);
286  }
287  }
288  if (y) {
289  if (sample_bytes == 1) {
290  p->store_slice(dst + (y - 8) * dst_linesize, p->temp + 8 + y*linesize,
291  dst_linesize, linesize, width,
292  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
293  ldither);
294  } else {
295  store_slice16_c((uint16_t*)(dst + (y - 8) * dst_linesize), p->temp + 8 + y*linesize,
296  dst_linesize/2, linesize, width,
297  FFMIN(8, height + 8 - y), MAX_LEVEL - p->log2_count,
298  ldither, depth);
299  }
300  }
301  }
302 }
303 
305 {
306  static const enum AVPixelFormat pix_fmts[] = {
321  };
322 
323  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
324  if (!fmts_list)
325  return AVERROR(ENOMEM);
326  return ff_set_common_formats(ctx, fmts_list);
327 }
328 
329 static int config_input(AVFilterLink *inlink)
330 {
331  SPPContext *spp = inlink->dst->priv;
332  const int h = FFALIGN(inlink->h + 16, 16);
333  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
334  const int bps = desc->comp[0].depth_minus1 + 1;
335 
336  av_opt_set_int(spp->dct, "bits_per_sample", bps, 0);
337  avcodec_dct_init(spp->dct);
338 
339  if (ARCH_X86)
340  ff_spp_init_x86(spp);
341 
342  spp->hsub = desc->log2_chroma_w;
343  spp->vsub = desc->log2_chroma_h;
344  spp->temp_linesize = FFALIGN(inlink->w + 16, 16);
345  spp->temp = av_malloc_array(spp->temp_linesize, h * sizeof(*spp->temp));
346  spp->src = av_malloc_array(spp->temp_linesize, h * sizeof(*spp->src) * 2);
347 
348  if (!spp->temp || !spp->src)
349  return AVERROR(ENOMEM);
350  return 0;
351 }
352 
353 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
354 {
355  AVFilterContext *ctx = inlink->dst;
356  SPPContext *spp = ctx->priv;
357  AVFilterLink *outlink = ctx->outputs[0];
358  AVFrame *out = in;
359  int qp_stride = 0;
360  const int8_t *qp_table = NULL;
361  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
362  const int depth = desc->comp[0].depth_minus1 + 1;
363 
364  /* if we are not in a constant user quantizer mode and we don't want to use
365  * the quantizers from the B-frames (B-frames often have a higher QP), we
366  * need to save the qp table from the last non B-frame; this is what the
367  * following code block does */
368  if (!spp->qp) {
369  qp_table = av_frame_get_qp_table(in, &qp_stride, &spp->qscale_type);
370 
371  if (qp_table && !spp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
372  int w, h;
373 
374  /* if the qp stride is not set, it means the QP are only defined on
375  * a line basis */
376  if (!qp_stride) {
377  w = FF_CEIL_RSHIFT(inlink->w, 4);
378  h = 1;
379  } else {
380  w = qp_stride;
381  h = FF_CEIL_RSHIFT(inlink->h, 4);
382  }
383 
384  if (w * h > spp->non_b_qp_alloc_size) {
385  int ret = av_reallocp_array(&spp->non_b_qp_table, w, h);
386  if (ret < 0) {
387  spp->non_b_qp_alloc_size = 0;
388  return ret;
389  }
390  spp->non_b_qp_alloc_size = w * h;
391  }
392 
393  av_assert0(w * h <= spp->non_b_qp_alloc_size);
394  memcpy(spp->non_b_qp_table, qp_table, w * h);
395  }
396  }
397 
398  if (spp->log2_count && !ctx->is_disabled) {
399  if (!spp->use_bframe_qp && spp->non_b_qp_table)
400  qp_table = spp->non_b_qp_table;
401 
402  if (qp_table || spp->qp) {
403  const int cw = FF_CEIL_RSHIFT(inlink->w, spp->hsub);
404  const int ch = FF_CEIL_RSHIFT(inlink->h, spp->vsub);
405 
406  /* get a new frame if in-place is not possible or if the dimensions
407  * are not multiple of 8 */
408  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
409  const int aligned_w = FFALIGN(inlink->w, 8);
410  const int aligned_h = FFALIGN(inlink->h, 8);
411 
412  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
413  if (!out) {
414  av_frame_free(&in);
415  return AVERROR(ENOMEM);
416  }
417  av_frame_copy_props(out, in);
418  out->width = in->width;
419  out->height = in->height;
420  }
421 
422  filter(spp, out->data[0], in->data[0], out->linesize[0], in->linesize[0], inlink->w, inlink->h, qp_table, qp_stride, 1, depth);
423 
424  if (out->data[2]) {
425  filter(spp, out->data[1], in->data[1], out->linesize[1], in->linesize[1], cw, ch, qp_table, qp_stride, 0, depth);
426  filter(spp, out->data[2], in->data[2], out->linesize[2], in->linesize[2], cw, ch, qp_table, qp_stride, 0, depth);
427  }
428  emms_c();
429  }
430  }
431 
432  if (in != out) {
433  if (in->data[3])
434  av_image_copy_plane(out->data[3], out->linesize[3],
435  in ->data[3], in ->linesize[3],
436  inlink->w, inlink->h);
437  av_frame_free(&in);
438  }
439  return ff_filter_frame(outlink, out);
440 }
441 
442 static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
443  char *res, int res_len, int flags)
444 {
445  SPPContext *spp = ctx->priv;
446 
447  if (!strcmp(cmd, "level")) {
448  if (!strcmp(args, "max"))
449  spp->log2_count = MAX_LEVEL;
450  else
451  spp->log2_count = av_clip(strtol(args, NULL, 10), 0, MAX_LEVEL);
452  return 0;
453  }
454  return AVERROR(ENOSYS);
455 }
456 
458 {
459  SPPContext *spp = ctx->priv;
460  int ret;
461 
463  spp->dct = avcodec_dct_alloc();
464  if (!spp->avctx || !spp->dct)
465  return AVERROR(ENOMEM);
466 
467  if (opts) {
468  AVDictionaryEntry *e = NULL;
469 
470  while ((e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
471  if ((ret = av_opt_set(spp->dct, e->key, e->value, 0)) < 0)
472  return ret;
473  }
474  av_dict_free(opts);
475  }
476 
477  spp->store_slice = store_slice_c;
478  switch (spp->mode) {
479  case MODE_HARD: spp->requantize = hardthresh_c; break;
480  case MODE_SOFT: spp->requantize = softthresh_c; break;
481  }
482  return 0;
483 }
484 
485 static av_cold void uninit(AVFilterContext *ctx)
486 {
487  SPPContext *spp = ctx->priv;
488 
489  av_freep(&spp->temp);
490  av_freep(&spp->src);
491  if (spp->avctx) {
492  avcodec_close(spp->avctx);
493  av_freep(&spp->avctx);
494  }
495  av_freep(&spp->dct);
496  av_freep(&spp->non_b_qp_table);
497 }
498 
499 static const AVFilterPad spp_inputs[] = {
500  {
501  .name = "default",
502  .type = AVMEDIA_TYPE_VIDEO,
503  .config_props = config_input,
504  .filter_frame = filter_frame,
505  },
506  { NULL }
507 };
508 
509 static const AVFilterPad spp_outputs[] = {
510  {
511  .name = "default",
512  .type = AVMEDIA_TYPE_VIDEO,
513  },
514  { NULL }
515 };
516 
518  .name = "spp",
519  .description = NULL_IF_CONFIG_SMALL("Apply a simple post processing filter."),
520  .priv_size = sizeof(SPPContext),
521  .init_dict = init_dict,
522  .uninit = uninit,
524  .inputs = spp_inputs,
525  .outputs = spp_outputs,
527  .priv_class = &spp_class,
529 };
#define STORE16(pos)
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:631
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2116
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
int use_bframe_qp
Definition: vf_spp.h:45
AVOption.
Definition: opt.h:255
av_cold void ff_spp_init_x86(SPPContext *s)
Definition: vf_spp.c:220
static int query_formats(AVFilterContext *ctx)
Definition: vf_spp.c:304
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:68
misc image utilities
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:248
int hsub
Definition: vf_spp.h:46
#define LIBAVUTIL_VERSION_INT
Definition: version.h:62
else temp
Definition: vf_mcdeint.c:257
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_spp.c:353
void(* requantize)(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.h:53
AVCodecContext * avctx
Definition: vf_spp.h:41
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:176
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:382
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:53
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_spp.c:442
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:109
int8_t * av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
Definition: frame.c:62
static const uint8_t ldither[8][8]
Definition: vf_spp.c:81
static void softthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:137
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:686
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
#define FFALIGN(x, a)
Definition: common.h:71
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:67
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_spp.c:485
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
#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:1145
int log2_count
Definition: vf_spp.h:34
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:100
uint8_t
#define av_cold
Definition: attributes.h:74
mode
Definition: f_perms.c:27
static void store_slice16_c(uint16_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8], int depth)
Definition: vf_spp.c:189
AVOptions.
#define OFFSET(x)
Definition: vf_spp.c:58
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:381
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:39
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:102
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:76
static void add_block(uint16_t *dst, int linesize, const int16_t block[64])
Definition: vf_spp.c:220
int non_b_qp_alloc_size
Definition: vf_spp.h:44
#define MAX_LEVEL
Definition: rl.h:35
static const AVClass * child_class_next(const AVClass *prev)
Definition: vf_spp.c:47
A filter pad used for either input or output.
Definition: internal.h:61
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:2898
uint16_t depth_minus1
Number of bits in the component minus 1.
Definition: pixdesc.h:57
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:215
int width
width and height of the video frame
Definition: frame.h:220
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:542
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
static const uint16_t mask[17]
Definition: lzw.c:38
av_default_item_name
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:148
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
static const uint8_t dither[8][8]
Definition: vf_fspp.c:57
void * priv
private data for use by the filter
Definition: avfilter.h:654
int temp_linesize
Definition: vf_spp.h:38
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:199
int av_opt_set_int(void *obj, const char *name, int64_t val, int search_flags)
Definition: opt.c:491
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:369
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
GLsizei count
Definition: opengl_enc.c:109
int avcodec_dct_init(AVDCT *dsp)
Definition: avdct.c:95
#define FFMAX(a, b)
Definition: common.h:64
static const AVClass spp_class
Definition: vf_spp.c:70
int depth
Definition: v4l.c:61
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:67
int8_t * non_b_qp_table
Definition: vf_spp.h:43
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:364
AVDCT * avcodec_dct_alloc(void)
Allocates a AVDCT context.
Definition: avdct.c:82
uint8_t idct_permutation[64]
IDCT input permutation.
Definition: avdct.h:48
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:242
#define FFMIN(a, b)
Definition: common.h:66
float y
static void hardthresh_c(int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
Definition: vf_spp.c:116
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:75
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:149
ret
Definition: avfilter.c:974
#define FF_CEIL_RSHIFT(a, b)
Definition: common.h:57
static int config_input(AVFilterLink *inlink)
Definition: vf_spp.c:329
int qscale_type
Definition: vf_spp.h:37
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_spp.c:457
AVDCT * dct
Definition: vf_spp.h:42
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:365
void(* fdct)(int16_t *block)
Definition: avdct.h:50
const AVClass * avcodec_dct_get_class(void)
Definition: avdct.c:77
AVS_Value src
Definition: avisynth_c.h:482
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:491
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
static const AVFilterPad spp_outputs[]
Definition: vf_spp.c:509
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
#define STORE(pos)
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}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;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->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);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
int vsub
Definition: vf_spp.h:46
uint16_t * temp
Definition: vf_spp.h:40
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:366
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:69
Describe the class of an AVClass context structure.
Definition: log.h:67
int qp
Definition: vf_spp.h:35
Filter definition.
Definition: avfilter.h:470
int index
Definition: gxfenc.c:89
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:239
#define FLAGS
Definition: vf_spp.c:59
const char * name
Filter name.
Definition: avfilter.h:474
void(* get_pixels)(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
Definition: avdct.h:65
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:363
#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:459
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:648
static const AVFilterPad spp_inputs[]
Definition: vf_spp.c:499
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:402
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:209
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:367
static int flags
Definition: cpu.c:47
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
uint8_t level
Definition: svq3.c:150
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
Y , 8bpp.
Definition: pixfmt.h:71
static void * child_next(void *obj, void *prev)
Definition: vf_spp.c:52
int mode
Definition: vf_spp.h:36
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:77
void *(* child_next)(void *obj, void *prev)
Return next AVOptions-enabled child or NULL.
Definition: log.h:113
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:70
char * key
Definition: dict.h:87
unsigned bps
Definition: movenc.c:1334
AVFilter ff_vf_spp
Definition: vf_spp.c:517
void(* store_slice)(uint8_t *dst, const int16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale, const uint8_t dither[8][8])
Definition: vf_spp.h:48
static void store_slice_c(uint8_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8])
Definition: vf_spp.c:159
char * value
Definition: dict.h:88
A list of supported formats for one end of a filter link.
Definition: formats.h:64
void(* idct)(int16_t *block)
Definition: avdct.h:32
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;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);returnNULL;}returnac;}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;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->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);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
An instance of a filter.
Definition: avfilter.h:633
int height
Definition: frame.h:220
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:101
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:72
#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:273
internal API functions
static const AVOption spp_options[]
Definition: vf_spp.c:60
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:369
static void filter(SPPContext *p, uint8_t *dst, uint8_t *src, int dst_linesize, int src_linesize, int width, int height, const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
Definition: vf_spp.c:232
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:551
uint8_t * src
Definition: vf_spp.h:39
static int width
static int16_t block[64]
Definition: dct-test.c:110