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 "libavutil/video_enc_params.h"
36 #include "libavcodec/avcodec.h"
37 #include "internal.h"
38 #include "qp_table.h"
39 #include "avfilter.h"
40 
41 #define MAX_LEVEL 8 /* quality levels */
42 #define BLOCK 16
43 
44 typedef struct USPPContext {
45  const AVClass *av_class;
46  int log2_count;
47  int count;
48  int hsub, vsub;
49  int qp;
50  char *codec_name;
51  enum AVVideoEncParamsType qscale_type;
52  int temp_stride[3];
53  uint8_t *src[3];
54  uint16_t *temp[3];
55  int outbuf_size;
56  uint8_t *outbuf;
57  AVCodecContext *avctx_enc[BLOCK*BLOCK];
58  AVCodecContext *avctx_dec[BLOCK*BLOCK];
59  AVPacket *pkt [BLOCK*BLOCK];
60  AVFrame *frame [BLOCK*BLOCK];
61  AVFrame *frame_dec [BLOCK*BLOCK];
62  int8_t *non_b_qp_table;
63  int non_b_qp_stride;
64  int use_bframe_qp;
65  int quality;
66 } USPPContext;
67 
68 #define OFFSET(x) offsetof(USPPContext, x)
69 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
70 static const AVOption uspp_options[] = {
71  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
72  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
73  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
74  { "codec", "Codec name", OFFSET(codec_name), AV_OPT_TYPE_STRING, {.str = "snow"}, 0, 0, FLAGS },
75  { NULL }
76 };
77 
78 AVFILTER_DEFINE_CLASS(uspp);
79 
80 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
81  { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
82  { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
83  { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
84  { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
85  { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
86  { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
87  { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
88  { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
89 };
90 
91 static const uint8_t offset[511][2] = {
92  { 0, 0},
93  { 0, 0}, { 8, 8}, // quality 1
94  { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
95  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
96 
97  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
98  { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
99 
100  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
101  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
102  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
103  { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
104 
105  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
106  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
107  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
108  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
109  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
110  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
111  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
112  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
113 
114  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
115  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
116  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
117  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
118  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
119  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
120  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
121  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
122  { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
123  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
124  { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
125  { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
126  { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
127  { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
128  { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
129  { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
130 
131  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
132  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
133  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
134  { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
135  { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
136  { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
137  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
138  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
139  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
140  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
141  { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
142  { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
143  { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
144  { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
145  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
146  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
147  { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
148  { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
149  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
150  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
151  { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
152  { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
153  { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
154  { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
155  { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
156  { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
157  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
158  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
159  { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
160  { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
161  { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
162  { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
163 };
164 
165 static void store_slice_c(uint8_t *dst, const uint16_t *src,
166  int dst_stride, int src_stride,
167  int width, int height, int log2_scale)
168 {
169  int y, x;
170 
171 #define STORE(pos) do { \
172  temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
173  if (temp & 0x100) temp = ~(temp >> 31); \
174  dst[x + y * dst_stride + pos] = temp; \
175 } while (0)
176 
177  for (y = 0; y < height; y++) {
178  const uint8_t *d = dither[y&7];
179  for (x = 0; x < width; x += 8) {
180  int temp;
181  STORE(0);
182  STORE(1);
183  STORE(2);
184  STORE(3);
185  STORE(4);
186  STORE(5);
187  STORE(6);
188  STORE(7);
189  }
190  }
191 }
192 
193 static int filter_1phase(AVFilterContext *ctx, void *arg, int i, int nb_jobs)
194 {
195  USPPContext *p = ctx->priv;
196  int ret, x, y;
197  int width = ctx->inputs[0]->w;
198  int height = ctx->inputs[0]->h;
199 
200  const int x1 = offset[i+nb_jobs-1][0];
201  const int y1 = offset[i+nb_jobs-1][1];
202  const int x1c = x1 >> p->hsub;
203  const int y1c = y1 >> p->vsub;
204  const int BLOCKc = BLOCK >> p->hsub;
205  int offset;
206  AVPacket *pkt = p->pkt[i];
207 
208  av_packet_unref(pkt);
209  pkt->data = p->outbuf;
210  pkt->size = p->outbuf_size;
211 
212  p->frame[i]->linesize[0] = p->temp_stride[0];
213  p->frame[i]->linesize[1] = p->temp_stride[1];
214  p->frame[i]->linesize[2] = p->temp_stride[2];
215  p->frame[i]->height = height + BLOCK;
216  p->frame[i]->width = width + BLOCK;
217  p->frame[i]->data[0] = p->src[0] + x1 + y1 * p->frame[i]->linesize[0];
218  p->frame[i]->data[1] = p->src[1] + x1c + y1c * p->frame[i]->linesize[1];
219  p->frame[i]->data[2] = p->src[2] + x1c + y1c * p->frame[i]->linesize[2];
220  p->frame[i]->format = p->avctx_enc[i]->pix_fmt;
221  p->frame[i]->quality = p->quality;
222 
223  ret = avcodec_send_frame(p->avctx_enc[i], p->frame[i]);
224  if (ret < 0) {
225  av_log(p->avctx_enc[i], AV_LOG_ERROR, "Error sending a frame for encoding\n");
226  return ret;
227  }
228  ret = avcodec_receive_packet(p->avctx_enc[i], pkt);
229  if (ret < 0) {
230  av_log(p->avctx_enc[i], AV_LOG_ERROR, "Error receiving a packet from encoding\n");
231  return ret;
232  }
233 
234  ret = avcodec_send_packet(p->avctx_dec[i], pkt);
235  av_packet_unref(pkt);
236  if (ret < 0) {
237  av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error sending a packet for decoding\n");
238  return ret;
239  }
240  ret = avcodec_receive_frame(p->avctx_dec[i], p->frame_dec[i]);
241  if (ret < 0) {
242  av_log(p->avctx_dec[i], AV_LOG_ERROR, "Error receiving a frame from decoding\n");
243  return ret;
244  }
245 
246  offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec[i]->linesize[0];
247 
248  for (y = 0; y < height; y++)
249  for (x = 0; x < width; x++)
250  p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec[i]->data[0][x + y * p->frame_dec[i]->linesize[0] + offset];
251 
252 
253  if (!p->frame_dec[i]->data[2] || !p->temp[2])
254  return 0;
255 
256  offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec[i]->linesize[1];
257 
258  for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
259  for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
260  p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec[i]->data[1][x + y * p->frame_dec[i]->linesize[1] + offset];
261  p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec[i]->data[2][x + y * p->frame_dec[i]->linesize[2] + offset];
262  }
263  }
264 
265  return 0;
266 }
267 
268 static void filter(AVFilterContext *ctx, uint8_t *dst[3], uint8_t *src[3],
269  int dst_stride[3], int src_stride[3], int width,
270  int height, uint8_t *qp_store, int qp_stride)
271 {
272  USPPContext *p = ctx->priv;
273  int x, y, i, j;
274 
275  for (i = 0; i < 3; i++) {
276  int is_chroma = !!i;
277  int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
278  int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
279  int stride = p->temp_stride[i];
280  int block = BLOCK >> (is_chroma ? p->hsub : 0);
281 
282  if (!src[i] || !dst[i])
283  continue;
284  for (y = 0; y < h; y++) {
285  int index = block + block * stride + y * stride;
286 
287  memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
288  for (x = 0; x < block; x++) {
289  p->src[i][index - x - 1] = p->src[i][index + x ];
290  p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
291  }
292  }
293  for (y = 0; y < block; y++) {
294  memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
295  memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
296  }
297 
298  memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
299  }
300 
301  if (p->qp)
302  p->quality = p->qp * FF_QP2LAMBDA;
303  else {
304  int qpsum=0;
305  int qpcount = (height>>4) * (height>>4);
306 
307  for (y = 0; y < (height>>4); y++) {
308  for (x = 0; x < (width>>4); x++)
309  qpsum += qp_store[x + y * qp_stride];
310  }
311  p->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
312  }
313 // init per MB qscale stuff FIXME
314 
315  ff_filter_execute(ctx, filter_1phase, NULL, NULL, p->count);
316 
317  for (j = 0; j < 3; j++) {
318  int is_chroma = !!j;
319  if (!dst[j])
320  continue;
321  store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
322  AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
323  AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
324  8-p->log2_count);
325  }
326 }
327 
328 static const enum AVPixelFormat pix_fmts[] = {
329  AV_PIX_FMT_YUV444P,
330  AV_PIX_FMT_YUV420P,
331  AV_PIX_FMT_YUV410P,
332  AV_PIX_FMT_YUVJ444P,
333  AV_PIX_FMT_YUVJ420P,
334  AV_PIX_FMT_GRAY8,
335  AV_PIX_FMT_NONE
336 };
337 
338 static int config_input(AVFilterLink *inlink)
339 {
340 
341  AVFilterContext *ctx = inlink->dst;
342  USPPContext *uspp = ctx->priv;
343  const int height = inlink->h;
344  const int width = inlink->w;
345  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
346  int i;
347  const AVCodec *enc = avcodec_find_encoder_by_name(uspp->codec_name);
348  const AVCodec *dec = avcodec_find_decoder_by_name(uspp->codec_name);
349  if (!enc) {
350  av_log(ctx, AV_LOG_ERROR, "encoder %s not found.\n", uspp->codec_name);
351  return AVERROR(EINVAL);
352  }
353  if (!dec) {
354  av_log(ctx, AV_LOG_ERROR, "decoder %s not found.\n", uspp->codec_name);
355  return AVERROR(EINVAL);
356  }
357 
358  uspp->hsub = desc->log2_chroma_w;
359  uspp->vsub = desc->log2_chroma_h;
360  uspp->count = 1<<uspp->log2_count;
361 
362  for (i = 0; i < 3; i++) {
363  int is_chroma = !!i;
364  int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
365  int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
366 
367  if (is_chroma) {
368  w = AV_CEIL_RSHIFT(w, uspp->hsub);
369  h = AV_CEIL_RSHIFT(h, uspp->vsub);
370  }
371 
372  uspp->temp_stride[i] = w;
373  if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
374  return AVERROR(ENOMEM);
375  if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
376  return AVERROR(ENOMEM);
377  }
378 
379  for (i = 0; i < uspp->count; i++) {
380  AVCodecContext *avctx_enc, *avctx_dec;
381  AVDictionary *opts = NULL;
382  int ret;
383 
384  if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
385  return AVERROR(ENOMEM);
386  if (!(uspp->avctx_dec[i] = avcodec_alloc_context3(NULL)))
387  return AVERROR(ENOMEM);
388 
389  avctx_enc = uspp->avctx_enc[i];
390  avctx_dec = uspp->avctx_dec[i];
391  avctx_dec->width =
392  avctx_enc->width = width + BLOCK;
393  avctx_dec->height =
394  avctx_enc->height = height + BLOCK;
395  avctx_enc->time_base = (AVRational){1,25}; // meaningless
396  avctx_enc->gop_size = INT_MAX;
397  avctx_enc->max_b_frames = 0;
398  avctx_enc->pix_fmt = inlink->format;
399  avctx_enc->flags = AV_CODEC_FLAG_QSCALE | AV_CODEC_FLAG_LOW_DELAY;
400  avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
401  avctx_enc->global_quality = 123;
402  avctx_dec->thread_count =
403  avctx_enc->thread_count = 1; // We do threading in the filter with muiltiple codecs
404  ret = avcodec_open2(avctx_enc, enc, &opts);
405  av_dict_free(&opts);
406  if (ret < 0)
407  return ret;
408  av_assert0(avctx_enc->codec);
409 
410 
411  ret = avcodec_open2(avctx_dec, dec, NULL);
412  if (ret < 0)
413  return ret;
414 
415  if (!(uspp->frame[i] = av_frame_alloc()))
416  return AVERROR(ENOMEM);
417  if (!(uspp->frame_dec[i] = av_frame_alloc()))
418  return AVERROR(ENOMEM);
419  if (!(uspp->pkt[i] = av_packet_alloc()))
420  return AVERROR(ENOMEM);
421  }
422 
423  uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
424  if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
425  return AVERROR(ENOMEM);
426 
427  return 0;
428 }
429 
430 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
431 {
432  AVFilterContext *ctx = inlink->dst;
433  USPPContext *uspp = ctx->priv;
434  AVFilterLink *outlink = ctx->outputs[0];
435  AVFrame *out = in;
436 
437  int qp_stride = 0;
438  int8_t *qp_table = NULL;
439  int ret = 0;
440 
441  /* if we are not in a constant user quantizer mode and we don't want to use
442  * the quantizers from the B-frames (B-frames often have a higher QP), we
443  * need to save the qp table from the last non B-frame; this is what the
444  * following code block does */
445  if (!uspp->qp && (uspp->use_bframe_qp || in->pict_type != AV_PICTURE_TYPE_B)) {
446  ret = ff_qp_table_extract(in, &qp_table, &qp_stride, NULL, &uspp->qscale_type);
447  if (ret < 0) {
448  av_frame_free(&in);
449  return ret;
450  }
451 
452  if (!uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
453  av_freep(&uspp->non_b_qp_table);
454  uspp->non_b_qp_table = qp_table;
455  uspp->non_b_qp_stride = qp_stride;
456  }
457  }
458 
459  if (uspp->log2_count && !ctx->is_disabled) {
460  if (!uspp->use_bframe_qp && uspp->non_b_qp_table) {
461  qp_table = uspp->non_b_qp_table;
462  qp_stride = uspp->non_b_qp_stride;
463  }
464 
465  if (qp_table || uspp->qp) {
466 
467  /* get a new frame if in-place is not possible or if the dimensions
468  * are not multiple of 8 */
469  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
470  const int aligned_w = FFALIGN(inlink->w, 8);
471  const int aligned_h = FFALIGN(inlink->h, 8);
472 
473  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
474  if (!out) {
475  av_frame_free(&in);
476  if (qp_table != uspp->non_b_qp_table)
477  av_free(qp_table);
478  return AVERROR(ENOMEM);
479  }
480  av_frame_copy_props(out, in);
481  out->width = in->width;
482  out->height = in->height;
483  }
484 
485  filter(ctx, out->data, in->data, out->linesize, in->linesize,
486  inlink->w, inlink->h, qp_table, qp_stride);
487  }
488  }
489 
490  if (in != out) {
491  if (in->data[3])
492  av_image_copy_plane(out->data[3], out->linesize[3],
493  in ->data[3], in ->linesize[3],
494  inlink->w, inlink->h);
495  av_frame_free(&in);
496  }
497  ret = ff_filter_frame(outlink, out);
498  if (qp_table != uspp->non_b_qp_table)
499  av_freep(&qp_table);
500  return ret;
501 }
502 
503 static av_cold void uninit(AVFilterContext *ctx)
504 {
505  USPPContext *uspp = ctx->priv;
506  int i;
507 
508  for (i = 0; i < 3; i++) {
509  av_freep(&uspp->temp[i]);
510  av_freep(&uspp->src[i]);
511  }
512 
513  for (i = 0; i < uspp->count; i++) {
514  avcodec_free_context(&uspp->avctx_enc[i]);
515  avcodec_free_context(&uspp->avctx_dec[i]);
516  av_frame_free(&uspp->frame[i]);
517  av_frame_free(&uspp->frame_dec[i]);
518  av_packet_free(&uspp->pkt[i]);
519  }
520 
521  av_freep(&uspp->non_b_qp_table);
522  av_freep(&uspp->outbuf);
523 }
524 
525 static const AVFilterPad uspp_inputs[] = {
526  {
527  .name = "default",
528  .type = AVMEDIA_TYPE_VIDEO,
529  .config_props = config_input,
530  .filter_frame = filter_frame,
531  },
532 };
533 
534 static const AVFilterPad uspp_outputs[] = {
535  {
536  .name = "default",
537  .type = AVMEDIA_TYPE_VIDEO,
538  },
539 };
540 
541 const AVFilter ff_vf_uspp = {
542  .name = "uspp",
543  .description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
544  .priv_size = sizeof(USPPContext),
545  .uninit = uninit,
546  FILTER_INPUTS(uspp_inputs),
547  FILTER_OUTPUTS(uspp_outputs),
548  FILTER_PIXFMTS_ARRAY(pix_fmts),
549  .priv_class = &uspp_class,
550  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
551 };
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:101
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:503
USPPContext::src
uint8_t * src[3]
Definition: vf_uspp.c:53
USPPContext::qp
int qp
Definition: vf_uspp.c:49
av_packet_unref
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:422
AVCodec
AVCodec.
Definition: codec.h:184
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_uspp.c:430
USPPContext::avctx_enc
AVCodecContext * avctx_enc[BLOCK *BLOCK]
Definition: vf_uspp.c:57
qp_table.h
avcodec_receive_packet
int avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
Read encoded data from the encoder.
Definition: encode.c:521
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:971
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2888
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:174
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:216
USPPContext::temp
uint16_t * temp[3]
Definition: vf_uspp.c:54
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:103
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
pixdesc.h
AVFrame::width
int width
Definition: frame.h:402
w
uint8_t w
Definition: llviddspenc.c:38
AVPacket::data
uint8_t * data
Definition: packet.h:374
AVOption
AVOption.
Definition: opt.h:251
BLOCK
#define BLOCK
Definition: vf_uspp.c:42
USPPContext::frame
AVFrame * frame[BLOCK *BLOCK]
Definition: vf_uspp.c:60
offset
static const uint8_t offset[511][2]
Definition: vf_uspp.c:91
FF_COMPLIANCE_EXPERIMENTAL
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: defs.h:62
AVDictionary
Definition: dict.c:32
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:338
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:165
USPPContext::codec_name
char * codec_name
Definition: vf_uspp.c:50
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
USPPContext::vsub
int vsub
Definition: vf_uspp.c:48
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:73
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:351
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:30
av_image_copy_plane
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:374
USPPContext::use_bframe_qp
int use_bframe_qp
Definition: vf_uspp.c:64
AVCodecContext::codec
const struct AVCodec * codec
Definition: avcodec.h:435
AVCodecContext::thread_count
int thread_count
thread count is used to decide how many independent tasks should be passed to execute()
Definition: avcodec.h:1506
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:506
AV_CODEC_FLAG_LOW_DELAY
#define AV_CODEC_FLAG_LOW_DELAY
Force low delay.
Definition: avcodec.h:313
USPPContext::avctx_dec
AVCodecContext * avctx_dec[BLOCK *BLOCK]
Definition: vf_uspp.c:58
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:91
avassert.h
pkt
AVPacket * pkt
Definition: movenc.c:59
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
av_cold
#define av_cold
Definition: attributes.h:90
store_slice_c
static void store_slice_c(uint8_t *dst, const uint16_t *src, int dst_stride, int src_stride, int width, int height, int log2_scale)
Definition: vf_uspp.c:165
AVVideoEncParamsType
AVVideoEncParamsType
Definition: video_enc_params.h:28
uspp_outputs
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:534
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:153
width
#define width
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:492
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:50
avcodec_receive_frame
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
Return decoded output data from a decoder or encoder (when the AV_CODEC_FLAG_RECON_FRAME flag is used...
Definition: avcodec.c:709
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
ctx
AVFormatContext * ctx
Definition: movenc.c:48
USPPContext::non_b_qp_stride
int non_b_qp_stride
Definition: vf_uspp.c:63
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:194
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
arg
const char * arg
Definition: jacosubdec.c:67
if
if(ret)
Definition: filter_design.txt:179
opts
AVDictionary * opts
Definition: movenc.c:50
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
avcodec_find_decoder_by_name
const AVCodec * avcodec_find_decoder_by_name(const char *name)
Find a registered decoder with the specified name.
Definition: allcodecs.c:992
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:602
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:168
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:46
USPPContext::quality
int quality
Definition: vf_uspp.c:65
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:115
dither
static const uint8_t dither[8][8]
Definition: vf_uspp.c:80
USPPContext::frame_dec
AVFrame * frame_dec[BLOCK *BLOCK]
Definition: vf_uspp.c:61
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:548
USPPContext::outbuf
uint8_t * outbuf
Definition: vf_uspp.c:56
AVFrame::pict_type
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:427
filter
static void filter(AVFilterContext *ctx, 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:268
AVPacket::size
int size
Definition: packet.h:375
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:115
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:620
USPPContext::av_class
const AVClass * av_class
Definition: vf_uspp.c:45
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:87
AVFrame::quality
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:470
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:532
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames,...
Definition: frame.h:417
height
#define height
av_packet_alloc
AVPacket * av_packet_alloc(void)
Allocate an AVPacket and set its fields to default values.
Definition: avpacket.c:62
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:223
USPPContext::count
int count
Definition: vf_uspp.c:47
internal.h
avcodec_send_packet
int avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Supply raw packet data as input to a decoder.
Definition: decode.c:607
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
MAX_LEVEL
#define MAX_LEVEL
Definition: vf_uspp.c:41
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:31
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AVCodecContext::height
int height
Definition: avcodec.h:598
avcodec_send_frame
int avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
Supply a raw video or audio frame to the encoder.
Definition: encode.c:483
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:635
USPPContext::pkt
AVPacket * pkt[BLOCK *BLOCK]
Definition: vf_uspp.c:59
avcodec.h
USPPContext
Definition: vf_uspp.c:44
stride
#define stride
Definition: h264pred_template.c:537
AVFilter
Filter definition.
Definition: avfilter.h:161
ret
ret
Definition: filter_design.txt:187
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_uspp.c:328
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
AVCodecContext::strict_std_compliance
int strict_std_compliance
strictly follow the standard (MPEG-4, ...).
Definition: avcodec.h:1345
uspp_options
static const AVOption uspp_options[]
Definition: vf_uspp.c:70
AVCodecContext
main external API structure.
Definition: avcodec.h:426
AVFrame::height
int height
Definition: frame.h:402
uspp_inputs
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:525
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:248
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:392
USPPContext::non_b_qp_table
int8_t * non_b_qp_table
Definition: vf_uspp.c:62
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
desc
const char * desc
Definition: libsvtav1.c:83
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
filter_1phase
static int filter_1phase(AVFilterContext *ctx, void *arg, int i, int nb_jobs)
Definition: vf_uspp.c:193
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:697
FLAGS
#define FLAGS
Definition: vf_uspp.c:69
USPPContext::qscale_type
enum AVVideoEncParamsType qscale_type
Definition: vf_uspp.c:51
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
av_free
#define av_free(p)
Definition: tableprint_vlc.h:33
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AVPacket
This structure stores compressed data.
Definition: packet.h:351
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:195
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:34
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
d
d
Definition: ffmpeg_filter.c:156
USPPContext::outbuf_size
int outbuf_size
Definition: vf_uspp.c:55
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:598
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:150
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:375
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:27
h
h
Definition: vp9dsp_template.c:2038
OFFSET
#define OFFSET(x)
Definition: vf_uspp.c:68
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
FF_QP2LAMBDA
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
ff_filter_execute
static av_always_inline int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition: internal.h:146
ff_vf_uspp
const AVFilter ff_vf_uspp
Definition: vf_uspp.c:541
video_enc_params.h
USPPContext::hsub
int hsub
Definition: vf_uspp.c:48
avcodec_find_encoder_by_name
const AVCodec * avcodec_find_encoder_by_name(const char *name)
Find a registered encoder with the specified name.
Definition: allcodecs.c:987
USPPContext::temp_stride
int temp_stride[3]
Definition: vf_uspp.c:52
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