FFmpeg
vf_pp7.c
Go to the documentation of this file.
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/avassert.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/mem_internal.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "internal.h"
36 #include "qp_table.h"
37 #include "vf_pp7.h"
38 
39 enum mode {
43 };
44 
45 #define OFFSET(x) offsetof(PP7Context, x)
46 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
47 static const AVOption pp7_options[] = {
48  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 64, FLAGS },
49  { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_MEDIUM}, 0, 2, FLAGS, "mode" },
50  { "hard", "hard thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD}, INT_MIN, INT_MAX, FLAGS, "mode" },
51  { "soft", "soft thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT}, INT_MIN, INT_MAX, FLAGS, "mode" },
52  { "medium", "medium thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_MEDIUM}, INT_MIN, INT_MAX, FLAGS, "mode" },
53  { NULL }
54 };
55 
57 
58 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
59  { 0, 48, 12, 60, 3, 51, 15, 63, },
60  { 32, 16, 44, 28, 35, 19, 47, 31, },
61  { 8, 56, 4, 52, 11, 59, 7, 55, },
62  { 40, 24, 36, 20, 43, 27, 39, 23, },
63  { 2, 50, 14, 62, 1, 49, 13, 61, },
64  { 34, 18, 46, 30, 33, 17, 45, 29, },
65  { 10, 58, 6, 54, 9, 57, 5, 53, },
66  { 42, 26, 38, 22, 41, 25, 37, 21, },
67 };
68 
69 #define N0 4
70 #define N1 5
71 #define N2 10
72 #define SN0 2
73 #define SN1 2.2360679775
74 #define SN2 3.16227766017
75 #define N (1 << 16)
76 
77 static const int factor[16] = {
78  N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
79  N / (N1 * N0), N / (N1 * N1), N / (N1 * N0), N / (N1 * N2),
80  N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
81  N / (N2 * N0), N / (N2 * N1), N / (N2 * N0), N / (N2 * N2),
82 };
83 
84 static void init_thres2(PP7Context *p)
85 {
86  int qp, i;
87  int bias = 0; //FIXME
88 
89  for (qp = 0; qp < 99; qp++) {
90  for (i = 0; i < 16; i++) {
91  p->thres2[qp][i] = ((i&1) ? SN2 : SN0) * ((i&4) ? SN2 : SN0) * FFMAX(1, qp) * (1<<2) - 1 - bias;
92  }
93  }
94 }
95 
96 static inline void dctA_c(int16_t *dst, uint8_t *src, int stride)
97 {
98  int i;
99 
100  for (i = 0; i < 4; i++) {
101  int s0 = src[0 * stride] + src[6 * stride];
102  int s1 = src[1 * stride] + src[5 * stride];
103  int s2 = src[2 * stride] + src[4 * stride];
104  int s3 = src[3 * stride];
105  int s = s3 + s3;
106  s3 = s - s0;
107  s0 = s + s0;
108  s = s2 + s1;
109  s2 = s2 - s1;
110  dst[0] = s0 + s;
111  dst[2] = s0 - s;
112  dst[1] = 2 * s3 + s2;
113  dst[3] = s3 - 2 * s2;
114  src++;
115  dst += 4;
116  }
117 }
118 
119 static void dctB_c(int16_t *dst, int16_t *src)
120 {
121  int i;
122 
123  for (i = 0; i < 4; i++) {
124  int s0 = src[0 * 4] + src[6 * 4];
125  int s1 = src[1 * 4] + src[5 * 4];
126  int s2 = src[2 * 4] + src[4 * 4];
127  int s3 = src[3 * 4];
128  int s = s3 + s3;
129  s3 = s - s0;
130  s0 = s + s0;
131  s = s2 + s1;
132  s2 = s2 - s1;
133  dst[0 * 4] = s0 + s;
134  dst[2 * 4] = s0 - s;
135  dst[1 * 4] = 2 * s3 + s2;
136  dst[3 * 4] = s3 - 2 * s2;
137  src++;
138  dst++;
139  }
140 }
141 
142 static int hardthresh_c(PP7Context *p, int16_t *src, int qp)
143 {
144  int i;
145  int a;
146 
147  a = src[0] * factor[0];
148  for (i = 1; i < 16; i++) {
149  unsigned int threshold1 = p->thres2[qp][i];
150  unsigned int threshold2 = threshold1 << 1;
151  int level = src[i];
152  if (((unsigned)(level + threshold1)) > threshold2)
153  a += level * factor[i];
154  }
155  return (a + (1 << 11)) >> 12;
156 }
157 
158 static int mediumthresh_c(PP7Context *p, int16_t *src, int qp)
159 {
160  int i;
161  int a;
162 
163  a = src[0] * factor[0];
164  for (i = 1; i < 16; i++) {
165  unsigned int threshold1 = p->thres2[qp][i];
166  unsigned int threshold2 = threshold1 << 1;
167  int level = src[i];
168  if (((unsigned)(level + threshold1)) > threshold2) {
169  if (((unsigned)(level + 2 * threshold1)) > 2 * threshold2)
170  a += level * factor[i];
171  else {
172  if (level > 0)
173  a += 2 * (level - (int)threshold1) * factor[i];
174  else
175  a += 2 * (level + (int)threshold1) * factor[i];
176  }
177  }
178  }
179  return (a + (1 << 11)) >> 12;
180 }
181 
182 static int softthresh_c(PP7Context *p, int16_t *src, int qp)
183 {
184  int i;
185  int a;
186 
187  a = src[0] * factor[0];
188  for (i = 1; i < 16; i++) {
189  unsigned int threshold1 = p->thres2[qp][i];
190  unsigned int threshold2 = threshold1 << 1;
191  int level = src[i];
192  if (((unsigned)(level + threshold1)) > threshold2) {
193  if (level > 0)
194  a += (level - (int)threshold1) * factor[i];
195  else
196  a += (level + (int)threshold1) * factor[i];
197  }
198  }
199  return (a + (1 << 11)) >> 12;
200 }
201 
202 static void filter(PP7Context *p, uint8_t *dst, uint8_t *src,
203  int dst_stride, int src_stride,
204  int width, int height,
205  uint8_t *qp_store, int qp_stride, int is_luma)
206 {
207  int x, y;
208  const int stride = is_luma ? p->temp_stride : ((width + 16 + 15) & (~15));
209  uint8_t *p_src = p->src + 8 * stride;
210  int16_t *block = (int16_t *)p->src;
211  int16_t *temp = (int16_t *)(p->src + 32);
212 
213  if (!src || !dst) return;
214  for (y = 0; y < height; y++) {
215  int index = 8 + 8 * stride + y * stride;
216  memcpy(p_src + index, src + y * src_stride, width);
217  for (x = 0; x < 8; x++) {
218  p_src[index - x - 1]= p_src[index + x ];
219  p_src[index + width + x ]= p_src[index + width - x - 1];
220  }
221  }
222  for (y = 0; y < 8; y++) {
223  memcpy(p_src + ( 7 - y ) * stride, p_src + ( y + 8 ) * stride, stride);
224  memcpy(p_src + (height + 8 + y) * stride, p_src + (height - y + 7) * stride, stride);
225  }
226  //FIXME (try edge emu)
227 
228  for (y = 0; y < height; y++) {
229  for (x = -8; x < 0; x += 4) {
230  const int index = x + y * stride + (8 - 3) * (1 + stride) + 8; //FIXME silly offset
231  uint8_t *src = p_src + index;
232  int16_t *tp = temp + 4 * x;
233 
234  dctA_c(tp + 4 * 8, src, stride);
235  }
236  for (x = 0; x < width; ) {
237  const int qps = 3 + is_luma;
238  int qp;
239  int end = FFMIN(x + 8, width);
240 
241  if (p->qp)
242  qp = p->qp;
243  else {
244  qp = qp_store[ (FFMIN(x, width - 1) >> qps) + (FFMIN(y, height - 1) >> qps) * qp_stride];
245  qp = ff_norm_qscale(qp, p->qscale_type);
246  }
247  for (; x < end; x++) {
248  const int index = x + y * stride + (8 - 3) * (1 + stride) + 8; //FIXME silly offset
249  uint8_t *src = p_src + index;
250  int16_t *tp = temp + 4 * x;
251  int v;
252 
253  if ((x & 3) == 0)
254  dctA_c(tp + 4 * 8, src, stride);
255 
256  p->dctB(block, tp);
257 
258  v = p->requantize(p, block, qp);
259  v = (v + dither[y & 7][x & 7]) >> 6;
260  if ((unsigned)v > 255)
261  v = (-v) >> 31;
262  dst[x + y * dst_stride] = v;
263  }
264  }
265  }
266 }
267 
269 {
270  static const enum AVPixelFormat pix_fmts[] = {
278  };
279 
281  if (!fmts_list)
282  return AVERROR(ENOMEM);
283  return ff_set_common_formats(ctx, fmts_list);
284 }
285 
287 {
288  AVFilterContext *ctx = inlink->dst;
289  PP7Context *pp7 = ctx->priv;
290  const int h = FFALIGN(inlink->h + 16, 16);
292 
293  pp7->hsub = desc->log2_chroma_w;
294  pp7->vsub = desc->log2_chroma_h;
295 
296  pp7->temp_stride = FFALIGN(inlink->w + 16, 16);
297  pp7->src = av_malloc_array(pp7->temp_stride, (h + 8) * sizeof(uint8_t));
298 
299  if (!pp7->src)
300  return AVERROR(ENOMEM);
301 
302  init_thres2(pp7);
303 
304  switch (pp7->mode) {
305  case 0: pp7->requantize = hardthresh_c; break;
306  case 1: pp7->requantize = softthresh_c; break;
307  default:
308  case 2: pp7->requantize = mediumthresh_c; break;
309  }
310 
311  pp7->dctB = dctB_c;
312 
313  if (ARCH_X86)
314  ff_pp7_init_x86(pp7);
315 
316  return 0;
317 }
318 
320 {
321  AVFilterContext *ctx = inlink->dst;
322  PP7Context *pp7 = ctx->priv;
323  AVFilterLink *outlink = ctx->outputs[0];
324  AVFrame *out = in;
325 
326  int qp_stride = 0;
327  int8_t *qp_table = NULL;
328 
329  if (!pp7->qp) {
330  int ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &pp7->qscale_type);
331  if (ret < 0) {
332  av_frame_free(&in);
333  return ret;
334  }
335  }
336 
337  if (!ctx->is_disabled) {
338  const int cw = AV_CEIL_RSHIFT(inlink->w, pp7->hsub);
339  const int ch = AV_CEIL_RSHIFT(inlink->h, pp7->vsub);
340 
341  /* get a new frame if in-place is not possible or if the dimensions
342  * are not multiple of 8 */
343  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
344  const int aligned_w = FFALIGN(inlink->w, 8);
345  const int aligned_h = FFALIGN(inlink->h, 8);
346 
347  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
348  if (!out) {
349  av_frame_free(&in);
350  av_freep(&qp_table);
351  return AVERROR(ENOMEM);
352  }
354  out->width = in->width;
355  out->height = in->height;
356  }
357 
358  if (qp_table || pp7->qp) {
359 
360  filter(pp7, out->data[0], in->data[0], out->linesize[0], in->linesize[0],
361  inlink->w, inlink->h, qp_table, qp_stride, 1);
362  filter(pp7, out->data[1], in->data[1], out->linesize[1], in->linesize[1],
363  cw, ch, qp_table, qp_stride, 0);
364  filter(pp7, out->data[2], in->data[2], out->linesize[2], in->linesize[2],
365  cw, ch, qp_table, qp_stride, 0);
366  emms_c();
367  }
368  }
369 
370  if (in != out) {
371  if (in->data[3])
372  av_image_copy_plane(out->data[3], out->linesize[3],
373  in ->data[3], in ->linesize[3],
374  inlink->w, inlink->h);
375  av_frame_free(&in);
376  }
377  av_freep(&qp_table);
378  return ff_filter_frame(outlink, out);
379 }
380 
382 {
383  PP7Context *pp7 = ctx->priv;
384  av_freep(&pp7->src);
385 }
386 
387 static const AVFilterPad pp7_inputs[] = {
388  {
389  .name = "default",
390  .type = AVMEDIA_TYPE_VIDEO,
391  .config_props = config_input,
392  .filter_frame = filter_frame,
393  },
394  { NULL }
395 };
396 
397 static const AVFilterPad pp7_outputs[] = {
398  {
399  .name = "default",
400  .type = AVMEDIA_TYPE_VIDEO,
401  },
402  { NULL }
403 };
404 
406  .name = "pp7",
407  .description = NULL_IF_CONFIG_SMALL("Apply Postprocessing 7 filter."),
408  .priv_size = sizeof(PP7Context),
409  .uninit = uninit,
411  .inputs = pp7_inputs,
412  .outputs = pp7_outputs,
413  .priv_class = &pp7_class,
415 };
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:99
OFFSET
#define OFFSET(x)
Definition: vf_pp7.c:45
stride
int stride
Definition: mace.c:144
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
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
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
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:978
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2541
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:111
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
pp7_options
static const AVOption pp7_options[]
Definition: vf_pp7.c:47
AVOption
AVOption.
Definition: opt.h:248
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
N2
#define N2
Definition: vf_pp7.c:71
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
MODE_HARD
@ MODE_HARD
Definition: vf_pp7.c:40
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_pp7.c:268
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:317
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:371
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:65
init_thres2
static void init_thres2(PP7Context *p)
Definition: vf_pp7.c:84
PP7Context::requantize
int(* requantize)(struct PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.h:39
s3
#define s3
Definition: regdef.h:40
softthresh_c
static int softthresh_c(PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.c:182
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(pp7)
dctB_c
static void dctB_c(int16_t *dst, int16_t *src)
Definition: vf_pp7.c:119
FLAGS
#define FLAGS
Definition: vf_pp7.c:46
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
SN0
#define SN0
Definition: vf_pp7.c:72
avassert.h
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_pp7.c:381
av_cold
#define av_cold
Definition: attributes.h:90
inputs
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
Definition: filter_design.txt:243
ff_set_common_formats
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:580
hardthresh_c
static int hardthresh_c(PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.c:142
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:79
width
#define width
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
s1
#define s1
Definition: regdef.h:38
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:289
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:202
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
PP7Context::qscale_type
int qscale_type
Definition: vf_pp7.h:33
ff_vf_pp7
const AVFilter ff_vf_pp7
Definition: vf_pp7.c:405
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
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:536
N
#define N
Definition: vf_pp7.c:75
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
mediumthresh_c
static int mediumthresh_c(PP7Context *p, int16_t *src, int qp)
Definition: vf_pp7.c:158
src
#define src
Definition: vp8dsp.c:255
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
PP7Context::temp_stride
int temp_stride
Definition: vf_pp7.h:36
s2
#define s2
Definition: regdef.h:39
SN2
#define SN2
Definition: vf_pp7.c:74
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
FFMAX
#define FFMAX(a, b)
Definition: common.h:103
N0
#define N0
Definition: vf_pp7.c:69
dither
static const uint8_t dither[8][8]
Definition: vf_pp7.c:58
pp7_outputs
static const AVFilterPad pp7_outputs[]
Definition: vf_pp7.c:397
vf_pp7.h
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:472
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: internal.h:351
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_pp7.c:319
height
#define height
FFMIN
#define FFMIN(a, b)
Definition: common.h:105
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:96
PP7Context::hsub
int hsub
Definition: vf_pp7.h:34
internal.h
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:117
i
int i
Definition: input.c:407
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
PP7Context::src
uint8_t * src
Definition: vf_pp7.h:37
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:100
MODE_SOFT
@ MODE_SOFT
Definition: vf_pp7.c:41
PP7Context::thres2
int thres2[99][16]
Definition: vf_pp7.h:29
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
pp7_inputs
static const AVFilterPad pp7_inputs[]
Definition: vf_pp7.c:387
PP7Context::vsub
int vsub
Definition: vf_pp7.h:35
PP7Context::qp
int qp
Definition: vf_pp7.h:31
AVFilter
Filter definition.
Definition: avfilter.h:145
ret
ret
Definition: filter_design.txt:187
ff_pp7_init_x86
void ff_pp7_init_x86(PP7Context *pp7)
Definition: vf_pp7_init.c:28
N1
#define N1
Definition: vf_pp7.c:70
AVFrame::height
int height
Definition: frame.h:361
PP7Context::mode
int mode
Definition: vf_pp7.h:32
mode
mode
Definition: ebur128.h:83
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
temp
else temp
Definition: vf_mcdeint.c:259
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:333
factor
static const int factor[16]
Definition: vf_pp7.c:77
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
desc
const char * desc
Definition: libsvtav1.c:79
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:70
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
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:70
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
MODE_MEDIUM
@ MODE_MEDIUM
Definition: vf_pp7.c:42
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
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:73
PP7Context
Definition: vf_pp7.h:27
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:134
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
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
h
h
Definition: vp9dsp_template.c:2038
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_pp7.c:286
int
int
Definition: ffmpeg_filter.c:156
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
PP7Context::dctB
void(* dctB)(int16_t *dst, int16_t *src)
Definition: vf_pp7.h:40