FFmpeg
vf_pp7.c
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1 /*
2  * Copyright (c) 2005 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  * Postprocessing filter - 7
25  *
26  * Originally written by Michael Niedermayer for the MPlayer
27  * project, and ported by Arwa Arif for FFmpeg.
28  */
29 
30 #include "libavutil/emms.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/mem_internal.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "internal.h"
36 #include "qp_table.h"
37 #include "vf_pp7.h"
38 #include "video.h"
39 
40 enum mode {
41  MODE_HARD,
42  MODE_SOFT,
43  MODE_MEDIUM
44 };
45 
46 #define OFFSET(x) offsetof(PP7Context, x)
47 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
48 static const AVOption pp7_options[] = {
49  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 64, FLAGS },
50  { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_MEDIUM}, 0, 2, FLAGS, .unit = "mode" },
51  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
52  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
53  { "medium", "medium thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_MEDIUM}, INT_MIN, INT_MAX, FLAGS, .unit = "mode" },
54  { NULL }
55 };
56 
57 AVFILTER_DEFINE_CLASS(pp7);
58 
59 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
60  { 0, 48, 12, 60, 3, 51, 15, 63, },
61  { 32, 16, 44, 28, 35, 19, 47, 31, },
62  { 8, 56, 4, 52, 11, 59, 7, 55, },
63  { 40, 24, 36, 20, 43, 27, 39, 23, },
64  { 2, 50, 14, 62, 1, 49, 13, 61, },
65  { 34, 18, 46, 30, 33, 17, 45, 29, },
66  { 10, 58, 6, 54, 9, 57, 5, 53, },
67  { 42, 26, 38, 22, 41, 25, 37, 21, },
68 };
69 
70 #define N0 4
71 #define N1 5
72 #define N2 10
73 #define SN0 2
74 #define SN1 2.2360679775
75 #define SN2 3.16227766017
76 #define N (1 << 16)
77 
78 static const int factor[16] = {
79  N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
80  N / (N1 * N0), N / (N1 * N1), N / (N1 * N0), N / (N1 * N2),
81  N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
82  N / (N2 * N0), N / (N2 * N1), N / (N2 * N0), N / (N2 * N2),
83 };
84 
85 static void init_thres2(PP7Context *p)
86 {
87  int qp, i;
88  int bias = 0; //FIXME
89 
90  for (qp = 0; qp < 99; qp++) {
91  for (i = 0; i < 16; i++) {
92  p->thres2[qp][i] = ((i&1) ? SN2 : SN0) * ((i&4) ? SN2 : SN0) * FFMAX(1, qp) * (1<<2) - 1 - bias;
93  }
94  }
95 }
96 
97 static inline void dctA_c(int16_t *dst, uint8_t *src, int stride)
98 {
99  int i;
100 
101  for (i = 0; i < 4; i++) {
102  int s0 = src[0 * stride] + src[6 * stride];
103  int s1 = src[1 * stride] + src[5 * stride];
104  int s2 = src[2 * stride] + src[4 * stride];
105  int s3 = src[3 * stride];
106  int s = s3 + s3;
107  s3 = s - s0;
108  s0 = s + s0;
109  s = s2 + s1;
110  s2 = s2 - s1;
111  dst[0] = s0 + s;
112  dst[2] = s0 - s;
113  dst[1] = 2 * s3 + s2;
114  dst[3] = s3 - 2 * s2;
115  src++;
116  dst += 4;
117  }
118 }
119 
120 static void dctB_c(int16_t *dst, int16_t *src)
121 {
122  int i;
123 
124  for (i = 0; i < 4; i++) {
125  int s0 = src[0 * 4] + src[6 * 4];
126  int s1 = src[1 * 4] + src[5 * 4];
127  int s2 = src[2 * 4] + src[4 * 4];
128  int s3 = src[3 * 4];
129  int s = s3 + s3;
130  s3 = s - s0;
131  s0 = s + s0;
132  s = s2 + s1;
133  s2 = s2 - s1;
134  dst[0 * 4] = s0 + s;
135  dst[2 * 4] = s0 - s;
136  dst[1 * 4] = 2 * s3 + s2;
137  dst[3 * 4] = s3 - 2 * s2;
138  src++;
139  dst++;
140  }
141 }
142 
143 static int hardthresh_c(PP7Context *p, int16_t *src, int qp)
144 {
145  int i;
146  int a;
147 
148  a = src[0] * factor[0];
149  for (i = 1; i < 16; i++) {
150  unsigned int threshold1 = p->thres2[qp][i];
151  unsigned int threshold2 = threshold1 << 1;
152  int level = src[i];
153  if (((unsigned)(level + threshold1)) > threshold2)
154  a += level * factor[i];
155  }
156  return (a + (1 << 11)) >> 12;
157 }
158 
159 static int mediumthresh_c(PP7Context *p, int16_t *src, int qp)
160 {
161  int i;
162  int a;
163 
164  a = src[0] * factor[0];
165  for (i = 1; i < 16; i++) {
166  unsigned int threshold1 = p->thres2[qp][i];
167  unsigned int threshold2 = threshold1 << 1;
168  int level = src[i];
169  if (((unsigned)(level + threshold1)) > threshold2) {
170  if (((unsigned)(level + 2 * threshold1)) > 2 * threshold2)
171  a += level * factor[i];
172  else {
173  if (level > 0)
174  a += 2 * (level - (int)threshold1) * factor[i];
175  else
176  a += 2 * (level + (int)threshold1) * factor[i];
177  }
178  }
179  }
180  return (a + (1 << 11)) >> 12;
181 }
182 
183 static int softthresh_c(PP7Context *p, int16_t *src, int qp)
184 {
185  int i;
186  int a;
187 
188  a = src[0] * factor[0];
189  for (i = 1; i < 16; i++) {
190  unsigned int threshold1 = p->thres2[qp][i];
191  unsigned int threshold2 = threshold1 << 1;
192  int level = src[i];
193  if (((unsigned)(level + threshold1)) > threshold2) {
194  if (level > 0)
195  a += (level - (int)threshold1) * factor[i];
196  else
197  a += (level + (int)threshold1) * factor[i];
198  }
199  }
200  return (a + (1 << 11)) >> 12;
201 }
202 
203 static void filter(PP7Context *p, uint8_t *dst, uint8_t *src,
204  int dst_stride, int src_stride,
205  int width, int height,
206  uint8_t *qp_store, int qp_stride, int is_luma)
207 {
208  int x, y;
209  const int stride = is_luma ? p->temp_stride : ((width + 16 + 15) & (~15));
210  uint8_t *p_src = p->src + 8 * stride;
211  int16_t *block = (int16_t *)p->src;
212  int16_t *temp = (int16_t *)(p->src + 32);
213 
214  if (!src || !dst) return;
215  for (y = 0; y < height; y++) {
216  int index = 8 + 8 * stride + y * stride;
217  memcpy(p_src + index, src + y * src_stride, width);
218  for (x = 0; x < 8; x++) {
219  p_src[index - x - 1]= p_src[index + x ];
220  p_src[index + width + x ]= p_src[index + width - x - 1];
221  }
222  }
223  for (y = 0; y < 8; y++) {
224  memcpy(p_src + ( 7 - y ) * stride, p_src + ( y + 8 ) * stride, stride);
225  memcpy(p_src + (height + 8 + y) * stride, p_src + (height - y + 7) * stride, stride);
226  }
227  //FIXME (try edge emu)
228 
229  for (y = 0; y < height; y++) {
230  for (x = -8; x < 0; x += 4) {
231  const int index = x + y * stride + (8 - 3) * (1 + stride) + 8; //FIXME silly offset
232  uint8_t *src = p_src + index;
233  int16_t *tp = temp + 4 * x;
234 
235  dctA_c(tp + 4 * 8, src, stride);
236  }
237  for (x = 0; x < width; ) {
238  const int qps = 3 + is_luma;
239  int qp;
240  int end = FFMIN(x + 8, width);
241 
242  if (p->qp)
243  qp = p->qp;
244  else {
245  qp = qp_store[ (FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
246  qp = ff_norm_qscale(qp, p->qscale_type);
247  }
248  for (; x < end; x++) {
249  const int index = x + y * stride + (8 - 3) * (1 + stride) + 8; //FIXME silly offset
250  uint8_t *src = p_src + index;
251  int16_t *tp = temp + 4 * x;
252  int v;
253 
254  if ((x & 3) == 0)
255  dctA_c(tp + 4 * 8, src, stride);
256 
257  p->dctB(block, tp);
258 
259  v = p->requantize(p, block, qp);
260  v = (v + dither[y & 7][x & 7]) >> 6;
261  if ((unsigned)v > 255)
262  v = (-v) >> 31;
263  dst[x + y * dst_stride] = v;
264  }
265  }
266  }
267 }
268 
269 static const enum AVPixelFormat pix_fmts[] = {
270  AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P,
271  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
272  AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
273  AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
274  AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P,
275  AV_PIX_FMT_GBRP,
276  AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE
277 };
278 
279 static int config_input(AVFilterLink *inlink)
280 {
281  AVFilterContext *ctx = inlink->dst;
282  PP7Context *pp7 = ctx->priv;
283  const int h = FFALIGN(inlink->h + 16, 16);
284  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
285 
286  pp7->hsub = desc->log2_chroma_w;
287  pp7->vsub = desc->log2_chroma_h;
288 
289  pp7->temp_stride = FFALIGN(inlink->w + 16, 16);
290  pp7->src = av_malloc_array(pp7->temp_stride, (h + 8) * sizeof(uint8_t));
291 
292  if (!pp7->src)
293  return AVERROR(ENOMEM);
294 
295  init_thres2(pp7);
296 
297  switch (pp7->mode) {
298  case 0: pp7->requantize = hardthresh_c; break;
299  case 1: pp7->requantize = softthresh_c; break;
300  default:
301  case 2: pp7->requantize = mediumthresh_c; break;
302  }
303 
304  pp7->dctB = dctB_c;
305 
306 #if ARCH_X86
307  ff_pp7_init_x86(pp7);
308 #endif
309 
310  return 0;
311 }
312 
313 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
314 {
315  AVFilterContext *ctx = inlink->dst;
316  PP7Context *pp7 = ctx->priv;
317  AVFilterLink *outlink = ctx->outputs[0];
318  AVFrame *out = in;
319 
320  int qp_stride = 0;
321  int8_t *qp_table = NULL;
322 
323  if (!pp7->qp) {
324  int ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &pp7->qscale_type);
325  if (ret < 0) {
326  av_frame_free(&in);
327  return ret;
328  }
329  }
330 
331  if (!ctx->is_disabled) {
332  const int cw = AV_CEIL_RSHIFT(inlink->w, pp7->hsub);
333  const int ch = AV_CEIL_RSHIFT(inlink->h, pp7->vsub);
334 
335  /* get a new frame if in-place is not possible or if the dimensions
336  * are not multiple of 8 */
337  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
338  const int aligned_w = FFALIGN(inlink->w, 8);
339  const int aligned_h = FFALIGN(inlink->h, 8);
340 
341  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
342  if (!out) {
343  av_frame_free(&in);
344  av_freep(&qp_table);
345  return AVERROR(ENOMEM);
346  }
347  av_frame_copy_props(out, in);
348  out->width = in->width;
349  out->height = in->height;
350  }
351 
352  if (qp_table || pp7->qp) {
353 
354  filter(pp7, out->data[0], in->data[0], out->linesize[0], in->linesize[0],
355  inlink->w, inlink->h, qp_table, qp_stride, 1);
356  filter(pp7, out->data[1], in->data[1], out->linesize[1], in->linesize[1],
357  cw, ch, qp_table, qp_stride, 0);
358  filter(pp7, out->data[2], in->data[2], out->linesize[2], in->linesize[2],
359  cw, ch, qp_table, qp_stride, 0);
360  emms_c();
361  }
362  }
363 
364  if (in != out) {
365  if (in->data[3])
366  av_image_copy_plane(out->data[3], out->linesize[3],
367  in ->data[3], in ->linesize[3],
368  inlink->w, inlink->h);
369  av_frame_free(&in);
370  }
371  av_freep(&qp_table);
372  return ff_filter_frame(outlink, out);
373 }
374 
375 static av_cold void uninit(AVFilterContext *ctx)
376 {
377  PP7Context *pp7 = ctx->priv;
378  av_freep(&pp7->src);
379 }
380 
381 static const AVFilterPad pp7_inputs[] = {
382  {
383  .name = "default",
384  .type = AVMEDIA_TYPE_VIDEO,
385  .config_props = config_input,
386  .filter_frame = filter_frame,
387  },
388 };
389 
390 const AVFilter ff_vf_pp7 = {
391  .name = "pp7",
392  .description = NULL_IF_CONFIG_SMALL("Apply Postprocessing 7 filter."),
393  .priv_size = sizeof(PP7Context),
394  .uninit = uninit,
395  FILTER_INPUTS(pp7_inputs),
396  FILTER_OUTPUTS(ff_video_default_filterpad),
397  FILTER_PIXFMTS_ARRAY(pix_fmts),
398  .priv_class = &pp7_class,
399  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
400 };
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:112
OFFSET
#define OFFSET(x)
Definition: vf_pp7.c:46
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:71
level
uint8_t level
Definition: svq3.c:204
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_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1018
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2962
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
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:130
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:344
pixdesc.h
AVFrame::width
int width
Definition: frame.h:416
pp7_options
static const AVOption pp7_options[]
Definition: vf_pp7.c:48
AVOption
AVOption.
Definition: opt.h:346
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
N2
#define N2
Definition: vf_pp7.c:72
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
ff_norm_qscale
static int ff_norm_qscale(int qscale, enum AVVideoEncParamsType type)
Normalize the qscale factor FIXME Add support for other values of enum AVVideoEncParamsType besides A...
Definition: qp_table.h:39
MODE_HARD
@ MODE_HARD
Definition: vf_pp7.c:41
video.h
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:365
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
init_thres2
static void init_thres2(PP7Context *p)
Definition: vf_pp7.c:85
PP7Context::requantize
int(* requantize)(struct PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.h:40
s3
#define s3
Definition: regdef.h:40
softthresh_c
static int softthresh_c(PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.c:183
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(pp7)
dctB_c
static void dctB_c(int16_t *dst, int16_t *src)
Definition: vf_pp7.c:120
FLAGS
#define FLAGS
Definition: vf_pp7.c:47
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
SN0
#define SN0
Definition: vf_pp7.c:73
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_pp7.c:375
av_cold
#define av_cold
Definition: attributes.h:90
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition: video.c:37
hardthresh_c
static int hardthresh_c(PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.c:143
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:86
emms_c
#define emms_c()
Definition: emms.h:63
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
s1
#define s1
Definition: regdef.h:38
ctx
AVFormatContext * ctx
Definition: movenc.c:48
filter
static void filter(PP7Context *p, uint8_t *dst, uint8_t *src, int dst_stride, int src_stride, int width, int height, uint8_t *qp_store, int qp_stride, int is_luma)
Definition: vf_pp7.c:203
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:73
ff_vf_pp7
const AVFilter ff_vf_pp7
Definition: vf_pp7.c:390
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
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:87
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:679
bias
static int bias(int x, int c)
Definition: vqcdec.c:114
N
#define N
Definition: vf_pp7.c:76
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:85
mediumthresh_c
static int mediumthresh_c(PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.c:159
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
index
int index
Definition: gxfenc.c:89
PP7Context::temp_stride
int temp_stride
Definition: vf_pp7.h:37
s2
#define s2
Definition: regdef.h:39
SN2
#define SN2
Definition: vf_pp7.c:75
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:106
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:109
N0
#define N0
Definition: vf_pp7.c:70
dither
static const uint8_t dither[8][8]
Definition: vf_pp7.c:59
vf_pp7.h
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:615
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_pp7.c:313
height
#define height
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
dctA_c
static void dctA_c(int16_t *dst, uint8_t *src, int stride)
Definition: vf_pp7.c:97
PP7Context::hsub
int hsub
Definition: vf_pp7.h:35
internal.h
emms.h
PP7Context::qscale_type
enum AVVideoEncParamsType qscale_type
Definition: vf_pp7.h:34
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
PP7Context::src
uint8_t * src
Definition: vf_pp7.h:38
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:107
MODE_SOFT
@ MODE_SOFT
Definition: vf_pp7.c:42
PP7Context::thres2
int thres2[99][16]
Definition: vf_pp7.h:30
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
pp7_inputs
static const AVFilterPad pp7_inputs[]
Definition: vf_pp7.c:381
PP7Context::vsub
int vsub
Definition: vf_pp7.h:36
PP7Context::qp
int qp
Definition: vf_pp7.h:32
stride
#define stride
Definition: h264pred_template.c:537
AVFilter
Filter definition.
Definition: avfilter.h:166
ret
ret
Definition: filter_design.txt:187
ff_qp_table_extract
int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table_h, enum AVVideoEncParamsType *qscale_type)
Extract a libpostproc-compatible QP table - an 8-bit QP value per 16x16 macroblock,...
Definition: qp_table.c:27
ff_pp7_init_x86
void ff_pp7_init_x86(PP7Context *pp7)
Definition: vf_pp7_init.c:28
N1
#define N1
Definition: vf_pp7.c:71
AVFrame::height
int height
Definition: frame.h:416
PP7Context::mode
int mode
Definition: vf_pp7.h:33
mode
mode
Definition: ebur128.h:83
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:235
temp
else temp
Definition: vf_mcdeint.c:263
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:78
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
factor
static const int factor[16]
Definition: vf_pp7.c:78
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
desc
const char * desc
Definition: libsvtav1.c:75
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:77
s0
#define s0
Definition: regdef.h:37
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
MODE_MEDIUM
@ MODE_MEDIUM
Definition: vf_pp7.c:43
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
PP7Context
Definition: vf_pp7.h:28
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:155
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:389
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:79
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
h
h
Definition: vp9dsp_template.c:2038
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_pp7.c:269
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_pp7.c:279
int
int
Definition: ffmpeg_filter.c:409
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:244
PP7Context::dctB
void(* dctB)(int16_t *dst, int16_t *src)
Definition: vf_pp7.h:41
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