FFmpeg
vf_uspp.c
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1 /*
2  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
3  * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 
22 /**
23  * @file
24  * Ultra Slow/Simple Post-processing filter.
25  *
26  * Originally written by Michael Niedermayer for the MPlayer project, and
27  * ported by Arwa Arif for FFmpeg.
28  */
29 
30 #include "libavutil/avassert.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/mem_internal.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "internal.h"
36 #include "qp_table.h"
37 #include "avfilter.h"
38 
39 #define MAX_LEVEL 8 /* quality levels */
40 #define BLOCK 16
41 
42 typedef struct USPPContext {
43  const AVClass *av_class;
44  int log2_count;
45  int hsub, vsub;
46  int qp;
47  int qscale_type;
48  int temp_stride[3];
49  uint8_t *src[3];
50  uint16_t *temp[3];
51  int outbuf_size;
52  uint8_t *outbuf;
53  AVCodecContext *avctx_enc[BLOCK*BLOCK];
54  AVPacket *pkt;
55  AVFrame *frame;
56  AVFrame *frame_dec;
57  int8_t *non_b_qp_table;
58  int non_b_qp_stride;
59  int use_bframe_qp;
60 } USPPContext;
61 
62 #define OFFSET(x) offsetof(USPPContext, x)
63 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
64 static const AVOption uspp_options[] = {
65  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
66  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
67  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
68  { NULL }
69 };
70 
71 AVFILTER_DEFINE_CLASS(uspp);
72 
73 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
74  { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
75  { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
76  { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
77  { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
78  { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
79  { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
80  { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
81  { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
82 };
83 
84 static const uint8_t offset[511][2] = {
85  { 0, 0},
86  { 0, 0}, { 8, 8}, // quality 1
87  { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
88  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
89 
90  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
91  { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
92 
93  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
94  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
95  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
96  { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
97 
98  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
99  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
100  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
101  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
102  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
103  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
104  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
105  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
106 
107  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
108  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
109  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
110  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
111  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
112  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
113  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
114  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
115  { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
116  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
117  { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
118  { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
119  { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
120  { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
121  { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
122  { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
123 
124  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
125  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
126  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
127  { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
128  { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
129  { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
130  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
131  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
132  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
133  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
134  { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
135  { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
136  { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
137  { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
138  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
139  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
140  { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
141  { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
142  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
143  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
144  { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
145  { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
146  { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
147  { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
148  { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
149  { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
150  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
151  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
152  { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
153  { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
154  { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
155  { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
156 };
157 
158 static void store_slice_c(uint8_t *dst, const uint16_t *src,
159  int dst_stride, int src_stride,
160  int width, int height, int log2_scale)
161 {
162  int y, x;
163 
164 #define STORE(pos) do { \
165  temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
166  if (temp & 0x100) temp = ~(temp >> 31); \
167  dst[x + y * dst_stride + pos] = temp; \
168 } while (0)
169 
170  for (y = 0; y < height; y++) {
171  const uint8_t *d = dither[y&7];
172  for (x = 0; x < width; x += 8) {
173  int temp;
174  STORE(0);
175  STORE(1);
176  STORE(2);
177  STORE(3);
178  STORE(4);
179  STORE(5);
180  STORE(6);
181  STORE(7);
182  }
183  }
184 }
185 
186 static void filter(USPPContext *p, uint8_t *dst[3], uint8_t *src[3],
187  int dst_stride[3], int src_stride[3], int width,
188  int height, uint8_t *qp_store, int qp_stride)
189 {
190  int x, y, i, j;
191  const int count = 1<<p->log2_count;
192  int ret;
193 
194  for (i = 0; i < 3; i++) {
195  int is_chroma = !!i;
196  int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
197  int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
198  int stride = p->temp_stride[i];
199  int block = BLOCK >> (is_chroma ? p->hsub : 0);
200 
201  if (!src[i] || !dst[i])
202  continue;
203  for (y = 0; y < h; y++) {
204  int index = block + block * stride + y * stride;
205 
206  memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
207  for (x = 0; x < block; x++) {
208  p->src[i][index - x - 1] = p->src[i][index + x ];
209  p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
210  }
211  }
212  for (y = 0; y < block; y++) {
213  memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
214  memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
215  }
216 
217  p->frame->linesize[i] = stride;
218  memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
219  }
220 
221  if (p->qp)
222  p->frame->quality = p->qp * FF_QP2LAMBDA;
223  else {
224  int qpsum=0;
225  int qpcount = (height>>4) * (height>>4);
226 
227  for (y = 0; y < (height>>4); y++) {
228  for (x = 0; x < (width>>4); x++)
229  qpsum += qp_store[x + y * qp_stride];
230  }
231  p->frame->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
232  }
233 // init per MB qscale stuff FIXME
234  p->frame->height = height + BLOCK;
235  p->frame->width = width + BLOCK;
236 
237  for (i = 0; i < count; i++) {
238  const int x1 = offset[i+count-1][0];
239  const int y1 = offset[i+count-1][1];
240  const int x1c = x1 >> p->hsub;
241  const int y1c = y1 >> p->vsub;
242  const int BLOCKc = BLOCK >> p->hsub;
243  int offset;
244  AVPacket *pkt = p->pkt;
245  int got_pkt_ptr;
246 
247  av_packet_unref(pkt);
248  pkt->data = p->outbuf;
249  pkt->size = p->outbuf_size;
250 
251  p->frame->data[0] = p->src[0] + x1 + y1 * p->frame->linesize[0];
252  p->frame->data[1] = p->src[1] + x1c + y1c * p->frame->linesize[1];
253  p->frame->data[2] = p->src[2] + x1c + y1c * p->frame->linesize[2];
254  p->frame->format = p->avctx_enc[i]->pix_fmt;
255 
256  ret = avcodec_encode_video2(p->avctx_enc[i], pkt, p->frame, &got_pkt_ptr);
257  if (ret < 0) {
258  av_log(p->avctx_enc[i], AV_LOG_ERROR, "Encoding failed\n");
259  continue;
260  }
261  av_packet_unref(pkt);
262 
263  p->frame_dec = p->avctx_enc[i]->coded_frame;
264 
265  offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec->linesize[0];
266 
267  for (y = 0; y < height; y++)
268  for (x = 0; x < width; x++)
269  p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec->data[0][x + y * p->frame_dec->linesize[0] + offset];
270 
271  if (!src[2] || !dst[2])
272  continue;
273 
274  offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec->linesize[1];
275 
276  for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
277  for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
278  p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec->data[1][x + y * p->frame_dec->linesize[1] + offset];
279  p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec->data[2][x + y * p->frame_dec->linesize[2] + offset];
280  }
281  }
282  }
283 
284  for (j = 0; j < 3; j++) {
285  int is_chroma = !!j;
286  if (!dst[j])
287  continue;
288  store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
289  AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
290  AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
291  8-p->log2_count);
292  }
293 }
294 
295 static int query_formats(AVFilterContext *ctx)
296 {
297  static const enum AVPixelFormat pix_fmts[] = {
298  AV_PIX_FMT_YUV444P,
299  AV_PIX_FMT_YUV420P,
300  AV_PIX_FMT_YUV410P,
301  AV_PIX_FMT_YUVJ444P,
302  AV_PIX_FMT_YUVJ420P,
303  AV_PIX_FMT_GRAY8,
304  AV_PIX_FMT_NONE
305  };
306 
307  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
308  if (!fmts_list)
309  return AVERROR(ENOMEM);
310  return ff_set_common_formats(ctx, fmts_list);
311 }
312 
313 static int config_input(AVFilterLink *inlink)
314 {
315 
316  AVFilterContext *ctx = inlink->dst;
317  USPPContext *uspp = ctx->priv;
318  const int height = inlink->h;
319  const int width = inlink->w;
320  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
321  int i;
322 
323  const AVCodec *enc = avcodec_find_encoder(AV_CODEC_ID_SNOW);
324  if (!enc) {
325  av_log(ctx, AV_LOG_ERROR, "SNOW encoder not found.\n");
326  return AVERROR(EINVAL);
327  }
328 
329  uspp->hsub = desc->log2_chroma_w;
330  uspp->vsub = desc->log2_chroma_h;
331 
332  for (i = 0; i < 3; i++) {
333  int is_chroma = !!i;
334  int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
335  int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
336 
337  if (is_chroma) {
338  w = AV_CEIL_RSHIFT(w, uspp->hsub);
339  h = AV_CEIL_RSHIFT(h, uspp->vsub);
340  }
341 
342  uspp->temp_stride[i] = w;
343  if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
344  return AVERROR(ENOMEM);
345  if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
346  return AVERROR(ENOMEM);
347  }
348 
349  for (i = 0; i < (1<<uspp->log2_count); i++) {
350  AVCodecContext *avctx_enc;
351  AVDictionary *opts = NULL;
352  int ret;
353 
354  if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
355  return AVERROR(ENOMEM);
356 
357  avctx_enc = uspp->avctx_enc[i];
358  avctx_enc->width = width + BLOCK;
359  avctx_enc->height = height + BLOCK;
360  avctx_enc->time_base = (AVRational){1,25}; // meaningless
361  avctx_enc->gop_size = INT_MAX;
362  avctx_enc->max_b_frames = 0;
363  avctx_enc->pix_fmt = inlink->format;
364  avctx_enc->flags = AV_CODEC_FLAG_QSCALE | AV_CODEC_FLAG_LOW_DELAY;
365  avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
366  avctx_enc->global_quality = 123;
367  av_dict_set(&opts, "no_bitstream", "1", 0);
368  ret = avcodec_open2(avctx_enc, enc, &opts);
369  av_dict_free(&opts);
370  if (ret < 0)
371  return ret;
372  av_assert0(avctx_enc->codec);
373  }
374 
375  uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
376  if (!(uspp->frame = av_frame_alloc()))
377  return AVERROR(ENOMEM);
378  if (!(uspp->pkt = av_packet_alloc()))
379  return AVERROR(ENOMEM);
380  if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
381  return AVERROR(ENOMEM);
382 
383  return 0;
384 }
385 
386 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
387 {
388  AVFilterContext *ctx = inlink->dst;
389  USPPContext *uspp = ctx->priv;
390  AVFilterLink *outlink = ctx->outputs[0];
391  AVFrame *out = in;
392 
393  int qp_stride = 0;
394  int8_t *qp_table = NULL;
395  int ret = 0;
396 
397  /* if we are not in a constant user quantizer mode and we don't want to use
398  * the quantizers from the B-frames (B-frames often have a higher QP), we
399  * need to save the qp table from the last non B-frame; this is what the
400  * following code block does */
401  if (!uspp->qp && (uspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
402  ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &uspp->qscale_type);
403  if (ret < 0) {
404  av_frame_free(&in);
405  return ret;
406  }
407 
408  if (!uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
409  av_freep(&uspp->non_b_qp_table);
410  uspp->non_b_qp_table = qp_table;
411  uspp->non_b_qp_stride = qp_stride;
412  }
413  }
414 
415  if (uspp->log2_count && !ctx->is_disabled) {
416  if (!uspp->use_bframe_qp && uspp->non_b_qp_table) {
417  qp_table = uspp->non_b_qp_table;
418  qp_stride = uspp->non_b_qp_stride;
419  }
420 
421  if (qp_table || uspp->qp) {
422 
423  /* get a new frame if in-place is not possible or if the dimensions
424  * are not multiple of 8 */
425  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
426  const int aligned_w = FFALIGN(inlink->w, 8);
427  const int aligned_h = FFALIGN(inlink->h, 8);
428 
429  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
430  if (!out) {
431  av_frame_free(&in);
432  if (qp_table != uspp->non_b_qp_table)
433  av_free(qp_table);
434  return AVERROR(ENOMEM);
435  }
436  av_frame_copy_props(out, in);
437  out->width = in->width;
438  out->height = in->height;
439  }
440 
441  filter(uspp, out->data, in->data, out->linesize, in->linesize,
442  inlink->w, inlink->h, qp_table, qp_stride);
443  }
444  }
445 
446  if (in != out) {
447  if (in->data[3])
448  av_image_copy_plane(out->data[3], out->linesize[3],
449  in ->data[3], in ->linesize[3],
450  inlink->w, inlink->h);
451  av_frame_free(&in);
452  }
453  ret = ff_filter_frame(outlink, out);
454  if (qp_table != uspp->non_b_qp_table)
455  av_freep(&qp_table);
456  return ret;
457 }
458 
459 static av_cold void uninit(AVFilterContext *ctx)
460 {
461  USPPContext *uspp = ctx->priv;
462  int i;
463 
464  for (i = 0; i < 3; i++) {
465  av_freep(&uspp->temp[i]);
466  av_freep(&uspp->src[i]);
467  }
468 
469  for (i = 0; i < (1 << uspp->log2_count); i++)
470  avcodec_free_context(&uspp->avctx_enc[i]);
471 
472  av_freep(&uspp->non_b_qp_table);
473  av_freep(&uspp->outbuf);
474  av_packet_free(&uspp->pkt);
475  av_frame_free(&uspp->frame);
476 }
477 
478 static const AVFilterPad uspp_inputs[] = {
479  {
480  .name = "default",
481  .type = AVMEDIA_TYPE_VIDEO,
482  .config_props = config_input,
483  .filter_frame = filter_frame,
484  },
485  { NULL }
486 };
487 
488 static const AVFilterPad uspp_outputs[] = {
489  {
490  .name = "default",
491  .type = AVMEDIA_TYPE_VIDEO,
492  },
493  { NULL }
494 };
495 
496 AVFilter ff_vf_uspp = {
497  .name = "uspp",
498  .description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
499  .priv_size = sizeof(USPPContext),
500  .uninit = uninit,
501  .query_formats = query_formats,
502  .inputs = uspp_inputs,
503  .outputs = uspp_outputs,
504  .priv_class = &uspp_class,
505  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
506 };
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:99
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:459
USPPContext::src
uint8_t * src[3]
Definition: vf_uspp.c:49
USPPContext::frame
AVFrame * frame
Definition: vf_uspp.c:55
USPPContext::qp
int qp
Definition: vf_uspp.c:46
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:634
AVCodec
AVCodec.
Definition: codec.h:197
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:386
USPPContext::avctx_enc
AVCodecContext * avctx_enc[BLOCK *BLOCK]
Definition: vf_uspp.c:53
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_COMPLIANCE_EXPERIMENTAL
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:1606
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1096
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:275
USPPContext::temp
uint16_t * temp[3]
Definition: vf_uspp.c:50
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:203
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
pixdesc.h
AVFrame::width
int width
Definition: frame.h:376
w
uint8_t w
Definition: llviddspenc.c:39
AVPacket::data
uint8_t * data
Definition: packet.h:369
AVOption
AVOption.
Definition: opt.h:248
BLOCK
#define BLOCK
Definition: vf_uspp.c:40
offset
static const uint8_t offset[511][2]
Definition: vf_uspp.c:84
AVDictionary
Definition: dict.c:30
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:313
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:149
USPPContext::vsub
int vsub
Definition: vf_uspp.c:45
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:332
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:373
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:65
USPPContext::use_bframe_qp
int use_bframe_qp
Definition: vf_uspp.c:59
USPPContext::qscale_type
int qscale_type
Definition: vf_uspp.c:47
AVCodecContext::codec
const struct AVCodec * codec
Definition: avcodec.h:545
avcodec_find_encoder
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: allcodecs.c:941
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:616
AV_CODEC_FLAG_LOW_DELAY
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:325
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:190
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:194
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:158
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:587
uspp_outputs
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:488
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:173
width
#define width
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:602
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
ctx
AVFormatContext * ctx
Definition: movenc.c:48
USPPContext::non_b_qp_stride
int non_b_qp_stride
Definition: vf_uspp.c:58
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
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:67
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:658
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:188
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:44
src
#define src
Definition: vp8dsp.c:255
USPPContext::pkt
AVPacket * pkt
Definition: vf_uspp.c:54
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:144
dither
static const uint8_t dither[8][8]
Definition: vf_uspp.c:73
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
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
index
int index
Definition: gxfenc.c:89
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:659
USPPContext::outbuf
uint8_t * outbuf
Definition: vf_uspp.c:52
AVPacket::size
int size
Definition: packet.h:370
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:731
USPPContext::av_class
const AVClass * av_class
Definition: vf_uspp.c:43
AVFrame::quality
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:441
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:391
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
ff_vf_uspp
AVFilter ff_vf_uspp
Definition: vf_uspp.c:496
height
#define height
avcodec_encode_video2
attribute_deprecated int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode a frame of video.
Definition: encode.c:513
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:117
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
i
int i
Definition: input.c:407
USPPContext::frame_dec
AVFrame * frame_dec
Definition: vf_uspp.c:56
MAX_LEVEL
#define MAX_LEVEL
Definition: vf_uspp.c:39
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
uint8_t
uint8_t
Definition: audio_convert.c:194
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
AVCodecContext::height
int height
Definition: avcodec.h:709
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:746
USPPContext
Definition: vf_uspp.c:42
AVFilter
Filter definition.
Definition: avfilter.h:145
ret
ret
Definition: filter_design.txt:187
AVCodecContext::strict_std_compliance
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1601
AVCodecContext::coded_frame
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:1764
uspp_options
static const AVOption uspp_options[]
Definition: vf_uspp.c:64
AVCodecContext
main external API structure.
Definition: avcodec.h:536
AVFrame::height
int height
Definition: frame.h:376
AV_CODEC_ID_SNOW
@ AV_CODEC_ID_SNOW
Definition: codec_id.h:262
uspp_inputs
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:478
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:225
avfilter.h
temp
else temp
Definition: vf_mcdeint.c:259
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_uspp.c:295
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:186
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:341
USPPContext::non_b_qp_table
int8_t * non_b_qp_table
Definition: vf_uspp.c:57
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:796
FLAGS
#define FLAGS
Definition: vf_uspp.c:63
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:81
av_free
#define av_free(p)
Definition: tableprint_vlc.h:34
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
AVPacket
This structure stores compressed data.
Definition: packet.h:346
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:242
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
USPPContext::outbuf_size
int outbuf_size
Definition: vf_uspp.c:51
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:709
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:349
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:62
FF_QP2LAMBDA
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
USPPContext::hsub
int hsub
Definition: vf_uspp.c:45
USPPContext::temp_stride
int temp_stride[3]
Definition: vf_uspp.c:48
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