FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
vf_uspp.c
Go to the documentation of this file.
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/opt.h"
33 #include "libavutil/pixdesc.h"
34 #include "internal.h"
35 #include "avfilter.h"
36 
37 #define MAX_LEVEL 8 /* quality levels */
38 #define BLOCK 16
39 
40 typedef struct {
41  const AVClass *av_class;
42  int log2_count;
43  int hsub, vsub;
44  int qp;
45  int qscale_type;
46  int temp_stride[3];
47  uint8_t *src[3];
48  uint16_t *temp[3];
49  int outbuf_size;
50  uint8_t *outbuf;
51  AVCodecContext *avctx_enc[BLOCK*BLOCK];
52  AVFrame *frame;
53  AVFrame *frame_dec;
54  uint8_t *non_b_qp_table;
55  int non_b_qp_alloc_size;
56  int use_bframe_qp;
57 } USPPContext;
58 
59 #define OFFSET(x) offsetof(USPPContext, x)
60 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
61 static const AVOption uspp_options[] = {
62  { "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, FLAGS },
63  { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
64  { "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL,{.i64 = 0}, 0, 1, FLAGS },
65  { NULL }
66 };
67 
68 AVFILTER_DEFINE_CLASS(uspp);
69 
70 DECLARE_ALIGNED(8, static const uint8_t, dither)[8][8] = {
71  { 0*4, 48*4, 12*4, 60*4, 3*4, 51*4, 15*4, 63*4, },
72  { 32*4, 16*4, 44*4, 28*4, 35*4, 19*4, 47*4, 31*4, },
73  { 8*4, 56*4, 4*4, 52*4, 11*4, 59*4, 7*4, 55*4, },
74  { 40*4, 24*4, 36*4, 20*4, 43*4, 27*4, 39*4, 23*4, },
75  { 2*4, 50*4, 14*4, 62*4, 1*4, 49*4, 13*4, 61*4, },
76  { 34*4, 18*4, 46*4, 30*4, 33*4, 17*4, 45*4, 29*4, },
77  { 10*4, 58*4, 6*4, 54*4, 9*4, 57*4, 5*4, 53*4, },
78  { 42*4, 26*4, 38*4, 22*4, 41*4, 25*4, 37*4, 21*4, },
79 };
80 
81 static const uint8_t offset[511][2] = {
82  { 0, 0},
83  { 0, 0}, { 8, 8}, // quality 1
84  { 0, 0}, { 4, 4}, {12, 8}, { 8,12}, // quality 2
85  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14}, // quality 3
86 
87  { 0, 0}, {10, 2}, { 4, 4}, {14, 6}, { 8, 8}, { 2,10}, {12,12}, { 6,14},
88  { 5, 1}, {15, 3}, { 9, 5}, { 3, 7}, {13, 9}, { 7,11}, { 1,13}, {11,15}, // quality 4
89 
90  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
91  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
92  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 1, 5}, { 9, 5}, { 1,13}, { 9,13},
93  { 6, 6}, {14, 6}, { 6,14}, {14,14}, { 3, 7}, {11, 7}, { 3,15}, {11,15}, // quality 5
94 
95  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
96  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
97  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
98  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
99  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
100  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
101  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
102  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 7}, {14, 7}, { 6,15}, {14,15}, // quality 6
103 
104  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 0, 2}, { 8, 2}, { 0,10}, { 8,10},
105  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 0, 6}, { 8, 6}, { 0,14}, { 8,14},
106  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 1, 3}, { 9, 3}, { 1,11}, { 9,11},
107  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 1, 7}, { 9, 7}, { 1,15}, { 9,15},
108  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 2, 2}, {10, 2}, { 2,10}, {10,10},
109  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 2, 6}, {10, 6}, { 2,14}, {10,14},
110  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 3, 3}, {11, 3}, { 3,11}, {11,11},
111  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 3, 7}, {11, 7}, { 3,15}, {11,15},
112  { 4, 0}, {12, 0}, { 4, 8}, {12, 8}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
113  { 4, 4}, {12, 4}, { 4,12}, {12,12}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
114  { 5, 1}, {13, 1}, { 5, 9}, {13, 9}, { 5, 3}, {13, 3}, { 5,11}, {13,11},
115  { 5, 5}, {13, 5}, { 5,13}, {13,13}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
116  { 6, 0}, {14, 0}, { 6, 8}, {14, 8}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
117  { 6, 4}, {14, 4}, { 6,12}, {14,12}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
118  { 7, 1}, {15, 1}, { 7, 9}, {15, 9}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
119  { 7, 5}, {15, 5}, { 7,13}, {15,13}, { 7, 7}, {15, 7}, { 7,15}, {15,15}, // quality 7
120 
121  { 0, 0}, { 8, 0}, { 0, 8}, { 8, 8}, { 4, 4}, {12, 4}, { 4,12}, {12,12},
122  { 0, 4}, { 8, 4}, { 0,12}, { 8,12}, { 4, 0}, {12, 0}, { 4, 8}, {12, 8},
123  { 2, 2}, {10, 2}, { 2,10}, {10,10}, { 6, 6}, {14, 6}, { 6,14}, {14,14},
124  { 2, 6}, {10, 6}, { 2,14}, {10,14}, { 6, 2}, {14, 2}, { 6,10}, {14,10},
125  { 0, 2}, { 8, 2}, { 0,10}, { 8,10}, { 4, 6}, {12, 6}, { 4,14}, {12,14},
126  { 0, 6}, { 8, 6}, { 0,14}, { 8,14}, { 4, 2}, {12, 2}, { 4,10}, {12,10},
127  { 2, 0}, {10, 0}, { 2, 8}, {10, 8}, { 6, 4}, {14, 4}, { 6,12}, {14,12},
128  { 2, 4}, {10, 4}, { 2,12}, {10,12}, { 6, 0}, {14, 0}, { 6, 8}, {14, 8},
129  { 1, 1}, { 9, 1}, { 1, 9}, { 9, 9}, { 5, 5}, {13, 5}, { 5,13}, {13,13},
130  { 1, 5}, { 9, 5}, { 1,13}, { 9,13}, { 5, 1}, {13, 1}, { 5, 9}, {13, 9},
131  { 3, 3}, {11, 3}, { 3,11}, {11,11}, { 7, 7}, {15, 7}, { 7,15}, {15,15},
132  { 3, 7}, {11, 7}, { 3,15}, {11,15}, { 7, 3}, {15, 3}, { 7,11}, {15,11},
133  { 1, 3}, { 9, 3}, { 1,11}, { 9,11}, { 5, 7}, {13, 7}, { 5,15}, {13,15},
134  { 1, 7}, { 9, 7}, { 1,15}, { 9,15}, { 5, 3}, {13, 3}, { 5,11}, {13,11}, // quality 8
135  { 3, 1}, {11, 1}, { 3, 9}, {11, 9}, { 7, 5}, {15, 5}, { 7,13}, {15,13},
136  { 3, 5}, {11, 5}, { 3,13}, {11,13}, { 7, 1}, {15, 1}, { 7, 9}, {15, 9},
137  { 0, 1}, { 8, 1}, { 0, 9}, { 8, 9}, { 4, 5}, {12, 5}, { 4,13}, {12,13},
138  { 0, 5}, { 8, 5}, { 0,13}, { 8,13}, { 4, 1}, {12, 1}, { 4, 9}, {12, 9},
139  { 2, 3}, {10, 3}, { 2,11}, {10,11}, { 6, 7}, {14, 7}, { 6,15}, {14,15},
140  { 2, 7}, {10, 7}, { 2,15}, {10,15}, { 6, 3}, {14, 3}, { 6,11}, {14,11},
141  { 0, 3}, { 8, 3}, { 0,11}, { 8,11}, { 4, 7}, {12, 7}, { 4,15}, {12,15},
142  { 0, 7}, { 8, 7}, { 0,15}, { 8,15}, { 4, 3}, {12, 3}, { 4,11}, {12,11},
143  { 2, 1}, {10, 1}, { 2, 9}, {10, 9}, { 6, 5}, {14, 5}, { 6,13}, {14,13},
144  { 2, 5}, {10, 5}, { 2,13}, {10,13}, { 6, 1}, {14, 1}, { 6, 9}, {14, 9},
145  { 1, 0}, { 9, 0}, { 1, 8}, { 9, 8}, { 5, 4}, {13, 4}, { 5,12}, {13,12},
146  { 1, 4}, { 9, 4}, { 1,12}, { 9,12}, { 5, 0}, {13, 0}, { 5, 8}, {13, 8},
147  { 3, 2}, {11, 2}, { 3,10}, {11,10}, { 7, 6}, {15, 6}, { 7,14}, {15,14},
148  { 3, 6}, {11, 6}, { 3,14}, {11,14}, { 7, 2}, {15, 2}, { 7,10}, {15,10},
149  { 1, 2}, { 9, 2}, { 1,10}, { 9,10}, { 5, 6}, {13, 6}, { 5,14}, {13,14},
150  { 1, 6}, { 9, 6}, { 1,14}, { 9,14}, { 5, 2}, {13, 2}, { 5,10}, {13,10},
151  { 3, 0}, {11, 0}, { 3, 8}, {11, 8}, { 7, 4}, {15, 4}, { 7,12}, {15,12},
152  { 3, 4}, {11, 4}, { 3,12}, {11,12}, { 7, 0}, {15, 0}, { 7, 8}, {15, 8},
153 };
154 
155 static void store_slice_c(uint8_t *dst, const uint16_t *src,
156  int dst_stride, int src_stride,
157  int width, int height, int log2_scale)
158 {
159  int y, x;
160 
161 #define STORE(pos) do { \
162  temp = ((src[x + y * src_stride + pos] << log2_scale) + d[pos]) >> 8; \
163  if (temp & 0x100) temp = ~(temp >> 31); \
164  dst[x + y * dst_stride + pos] = temp; \
165 } while (0)
166 
167  for (y = 0; y < height; y++) {
168  const uint8_t *d = dither[y&7];
169  for (x = 0; x < width; x += 8) {
170  int temp;
171  STORE(0);
172  STORE(1);
173  STORE(2);
174  STORE(3);
175  STORE(4);
176  STORE(5);
177  STORE(6);
178  STORE(7);
179  }
180  }
181 }
182 
183 static void filter(USPPContext *p, uint8_t *dst[3], uint8_t *src[3],
184  int dst_stride[3], int src_stride[3], int width,
185  int height, uint8_t *qp_store, int qp_stride)
186 {
187  int x, y, i, j;
188  const int count = 1<<p->log2_count;
189 
190  for (i = 0; i < 3; i++) {
191  int is_chroma = !!i;
192  int w = AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0);
193  int h = AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0);
194  int stride = p->temp_stride[i];
195  int block = BLOCK >> (is_chroma ? p->hsub : 0);
196 
197  if (!src[i] || !dst[i])
198  continue;
199  for (y = 0; y < h; y++) {
200  int index = block + block * stride + y * stride;
201 
202  memcpy(p->src[i] + index, src[i] + y * src_stride[i], w );
203  for (x = 0; x < block; x++) {
204  p->src[i][index - x - 1] = p->src[i][index + x ];
205  p->src[i][index + w + x ] = p->src[i][index + w - x - 1];
206  }
207  }
208  for (y = 0; y < block; y++) {
209  memcpy(p->src[i] + ( block-1-y) * stride, p->src[i] + ( y+block ) * stride, stride);
210  memcpy(p->src[i] + (h+block +y) * stride, p->src[i] + (h-y+block-1) * stride, stride);
211  }
212 
213  p->frame->linesize[i] = stride;
214  memset(p->temp[i], 0, (h + 2 * block) * stride * sizeof(int16_t));
215  }
216 
217  if (p->qp)
218  p->frame->quality = p->qp * FF_QP2LAMBDA;
219  else {
220  int qpsum=0;
221  int qpcount = (height>>4) * (height>>4);
222 
223  for (y = 0; y < (height>>4); y++) {
224  for (x = 0; x < (width>>4); x++)
225  qpsum += qp_store[x + y * qp_stride];
226  }
227  p->frame->quality = ff_norm_qscale((qpsum + qpcount/2) / qpcount, p->qscale_type) * FF_QP2LAMBDA;
228  }
229 // init per MB qscale stuff FIXME
230  p->frame->height = height;
231  p->frame->width = width;
232 
233  for (i = 0; i < count; i++) {
234  const int x1 = offset[i+count-1][0];
235  const int y1 = offset[i+count-1][1];
236  const int x1c = x1 >> p->hsub;
237  const int y1c = y1 >> p->vsub;
238  const int BLOCKc = BLOCK >> p->hsub;
239  int offset;
240  AVPacket pkt = {0};
241  int got_pkt_ptr;
242 
243  av_init_packet(&pkt);
244  pkt.data = p->outbuf;
245  pkt.size = p->outbuf_size;
246 
247  p->frame->data[0] = p->src[0] + x1 + y1 * p->frame->linesize[0];
248  p->frame->data[1] = p->src[1] + x1c + y1c * p->frame->linesize[1];
249  p->frame->data[2] = p->src[2] + x1c + y1c * p->frame->linesize[2];
250  p->frame->format = p->avctx_enc[i]->pix_fmt;
251 
252  avcodec_encode_video2(p->avctx_enc[i], &pkt, p->frame, &got_pkt_ptr);
253  p->frame_dec = p->avctx_enc[i]->coded_frame;
254 
255  offset = (BLOCK-x1) + (BLOCK-y1) * p->frame_dec->linesize[0];
256 
257  for (y = 0; y < height; y++)
258  for (x = 0; x < width; x++)
259  p->temp[0][x + y * p->temp_stride[0]] += p->frame_dec->data[0][x + y * p->frame_dec->linesize[0] + offset];
260 
261  if (!src[2] || !dst[2])
262  continue;
263 
264  offset = (BLOCKc-x1c) + (BLOCKc-y1c) * p->frame_dec->linesize[1];
265 
266  for (y = 0; y < AV_CEIL_RSHIFT(height, p->vsub); y++) {
267  for (x = 0; x < AV_CEIL_RSHIFT(width, p->hsub); x++) {
268  p->temp[1][x + y * p->temp_stride[1]] += p->frame_dec->data[1][x + y * p->frame_dec->linesize[1] + offset];
269  p->temp[2][x + y * p->temp_stride[2]] += p->frame_dec->data[2][x + y * p->frame_dec->linesize[2] + offset];
270  }
271  }
272  }
273 
274  for (j = 0; j < 3; j++) {
275  int is_chroma = !!j;
276  if (!dst[j])
277  continue;
278  store_slice_c(dst[j], p->temp[j], dst_stride[j], p->temp_stride[j],
279  AV_CEIL_RSHIFT(width, is_chroma ? p->hsub : 0),
280  AV_CEIL_RSHIFT(height, is_chroma ? p->vsub : 0),
281  8-p->log2_count);
282  }
283 }
284 
285 static int query_formats(AVFilterContext *ctx)
286 {
287  static const enum AVPixelFormat pix_fmts[] = {
288  AV_PIX_FMT_YUV444P,
289  AV_PIX_FMT_YUV420P,
290  AV_PIX_FMT_YUV410P,
291  AV_PIX_FMT_YUVJ444P,
292  AV_PIX_FMT_YUVJ420P,
293  AV_PIX_FMT_GRAY8,
294  AV_PIX_FMT_NONE
295  };
296 
297  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
298  if (!fmts_list)
299  return AVERROR(ENOMEM);
300  return ff_set_common_formats(ctx, fmts_list);
301 }
302 
303 static int config_input(AVFilterLink *inlink)
304 {
305 
306  AVFilterContext *ctx = inlink->dst;
307  USPPContext *uspp = ctx->priv;
308  const int height = inlink->h;
309  const int width = inlink->w;
310  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
311  int i;
312 
313  AVCodec *enc = avcodec_find_encoder(AV_CODEC_ID_SNOW);
314  if (!enc) {
315  av_log(ctx, AV_LOG_ERROR, "SNOW encoder not found.\n");
316  return AVERROR(EINVAL);
317  }
318 
319  uspp->hsub = desc->log2_chroma_w;
320  uspp->vsub = desc->log2_chroma_h;
321 
322  for (i = 0; i < 3; i++) {
323  int is_chroma = !!i;
324  int w = (width + 4 * BLOCK-1) & (~(2 * BLOCK-1));
325  int h = (height + 4 * BLOCK-1) & (~(2 * BLOCK-1));
326 
327  if (is_chroma) {
328  w = AV_CEIL_RSHIFT(w, uspp->hsub);
329  h = AV_CEIL_RSHIFT(h, uspp->vsub);
330  }
331 
332  uspp->temp_stride[i] = w;
333  if (!(uspp->temp[i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(int16_t))))
334  return AVERROR(ENOMEM);
335  if (!(uspp->src [i] = av_malloc_array(uspp->temp_stride[i], h * sizeof(uint8_t))))
336  return AVERROR(ENOMEM);
337  }
338 
339  for (i = 0; i < (1<<uspp->log2_count); i++) {
340  AVCodecContext *avctx_enc;
341  AVDictionary *opts = NULL;
342  int ret;
343 
344  if (!(uspp->avctx_enc[i] = avcodec_alloc_context3(NULL)))
345  return AVERROR(ENOMEM);
346 
347  avctx_enc = uspp->avctx_enc[i];
348  avctx_enc->width = width + BLOCK;
349  avctx_enc->height = height + BLOCK;
350  avctx_enc->time_base = (AVRational){1,25}; // meaningless
351  avctx_enc->gop_size = INT_MAX;
352  avctx_enc->max_b_frames = 0;
353  avctx_enc->pix_fmt = inlink->format;
354  avctx_enc->flags = AV_CODEC_FLAG_QSCALE | CODEC_FLAG_LOW_DELAY;
355  avctx_enc->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
356  avctx_enc->global_quality = 123;
357  av_dict_set(&opts, "no_bitstream", "1", 0);
358  ret = avcodec_open2(avctx_enc, enc, &opts);
359  if (ret < 0)
360  return ret;
361  av_dict_free(&opts);
362  av_assert0(avctx_enc->codec);
363  }
364 
365  uspp->outbuf_size = (width + BLOCK) * (height + BLOCK) * 10;
366  if (!(uspp->frame = av_frame_alloc()))
367  return AVERROR(ENOMEM);
368  if (!(uspp->outbuf = av_malloc(uspp->outbuf_size)))
369  return AVERROR(ENOMEM);
370 
371  return 0;
372 }
373 
374 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
375 {
376  AVFilterContext *ctx = inlink->dst;
377  USPPContext *uspp = ctx->priv;
378  AVFilterLink *outlink = ctx->outputs[0];
379  AVFrame *out = in;
380 
381  int qp_stride = 0;
382  uint8_t *qp_table = NULL;
383 
384  /* if we are not in a constant user quantizer mode and we don't want to use
385  * the quantizers from the B-frames (B-frames often have a higher QP), we
386  * need to save the qp table from the last non B-frame; this is what the
387  * following code block does */
388  if (!uspp->qp) {
389  qp_table = av_frame_get_qp_table(in, &qp_stride, &uspp->qscale_type);
390 
391  if (qp_table && !uspp->use_bframe_qp && in->pict_type != AV_PICTURE_TYPE_B) {
392  int w, h;
393 
394  /* if the qp stride is not set, it means the QP are only defined on
395  * a line basis */
396  if (!qp_stride) {
397  w = AV_CEIL_RSHIFT(inlink->w, 4);
398  h = 1;
399  } else {
400  w = qp_stride;
401  h = AV_CEIL_RSHIFT(inlink->h, 4);
402  }
403 
404  if (w * h > uspp->non_b_qp_alloc_size) {
405  int ret = av_reallocp_array(&uspp->non_b_qp_table, w, h);
406  if (ret < 0) {
407  uspp->non_b_qp_alloc_size = 0;
408  return ret;
409  }
410  uspp->non_b_qp_alloc_size = w * h;
411  }
412 
413  av_assert0(w * h <= uspp->non_b_qp_alloc_size);
414  memcpy(uspp->non_b_qp_table, qp_table, w * h);
415  }
416  }
417 
418  if (uspp->log2_count && !ctx->is_disabled) {
419  if (!uspp->use_bframe_qp && uspp->non_b_qp_table)
420  qp_table = uspp->non_b_qp_table;
421 
422  if (qp_table || uspp->qp) {
423 
424  /* get a new frame if in-place is not possible or if the dimensions
425  * are not multiple of 8 */
426  if (!av_frame_is_writable(in) || (inlink->w & 7) || (inlink->h & 7)) {
427  const int aligned_w = FFALIGN(inlink->w, 8);
428  const int aligned_h = FFALIGN(inlink->h, 8);
429 
430  out = ff_get_video_buffer(outlink, aligned_w, aligned_h);
431  if (!out) {
432  av_frame_free(&in);
433  return AVERROR(ENOMEM);
434  }
435  av_frame_copy_props(out, in);
436  out->width = in->width;
437  out->height = in->height;
438  }
439 
440  filter(uspp, out->data, in->data, out->linesize, in->linesize,
441  inlink->w, inlink->h, qp_table, qp_stride);
442  }
443  }
444 
445  if (in != out) {
446  if (in->data[3])
447  av_image_copy_plane(out->data[3], out->linesize[3],
448  in ->data[3], in ->linesize[3],
449  inlink->w, inlink->h);
450  av_frame_free(&in);
451  }
452  return ff_filter_frame(outlink, out);
453 }
454 
455 static av_cold void uninit(AVFilterContext *ctx)
456 {
457  USPPContext *uspp = ctx->priv;
458  int i;
459 
460  for (i = 0; i < 3; i++) {
461  av_freep(&uspp->temp[i]);
462  av_freep(&uspp->src[i]);
463  }
464 
465  for (i = 0; i < (1 << uspp->log2_count); i++) {
466  avcodec_close(uspp->avctx_enc[i]);
467  av_freep(&uspp->avctx_enc[i]);
468  }
469 
470  av_freep(&uspp->non_b_qp_table);
471  av_freep(&uspp->outbuf);
472  av_frame_free(&uspp->frame);
473 }
474 
475 static const AVFilterPad uspp_inputs[] = {
476  {
477  .name = "default",
478  .type = AVMEDIA_TYPE_VIDEO,
479  .config_props = config_input,
480  .filter_frame = filter_frame,
481  },
482  { NULL }
483 };
484 
485 static const AVFilterPad uspp_outputs[] = {
486  {
487  .name = "default",
488  .type = AVMEDIA_TYPE_VIDEO,
489  },
490  { NULL }
491 };
492 
493 AVFilter ff_vf_uspp = {
494  .name = "uspp",
495  .description = NULL_IF_CONFIG_SMALL("Apply Ultra Simple / Slow Post-processing filter."),
496  .priv_size = sizeof(USPPContext),
497  .uninit = uninit,
498  .query_formats = query_formats,
499  .inputs = uspp_inputs,
500  .outputs = uspp_outputs,
501  .priv_class = &uspp_class,
502  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
503 };
FF_COMPLIANCE_EXPERIMENTAL
#define FF_COMPLIANCE_EXPERIMENTAL
Allow nonstandardized experimental things.
Definition: avcodec.h:2746
BLOCK
#define BLOCK
Definition: vf_uspp.c:38
USPPContext::vsub
int vsub
Definition: vf_uspp.c:43
NULL
#define NULL
Definition: coverity.c:32
AVCodecContext::codec
const struct AVCodec * codec
Definition: avcodec.h:1541
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_uspp.c:374
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2157
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:181
avcodec_find_encoder
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: utils.c:2610
h
h
Definition: vp9dsp_template.c:2093
AVOption
AVOption.
Definition: opt.h:245
ctx
AVFormatContext * ctx
Definition: movenc-test.c:48
AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:68
imgutils.h
misc image utilities
avfilter.h
Main libavfilter public API header.
temp
else temp
Definition: vf_mcdeint.c:259
AV_OPT_TYPE_INT
Definition: opt.h:223
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:1810
AVPacket::size
int size
Definition: avcodec.h:1468
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:53
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1752
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:76
pkt
static AVPacket pkt
Definition: demuxing_decoding.c:54
USPPContext::use_bframe_qp
int use_bframe_qp
Definition: vf_uspp.c:56
av_frame_get_qp_table
int8_t * av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
Definition: frame.c:65
AVCodec
AVCodec.
Definition: avcodec.h:3392
AVFilterContext::is_disabled
int is_disabled
the enabled state from the last expression evaluation
Definition: avfilter.h:351
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
USPPContext::src
uint8_t * src[3]
Definition: vf_uspp.c:47
dither
static const uint8_t dither[8][8]
Definition: vf_uspp.c:70
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:1661
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:59
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1163
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
av_malloc
#define av_malloc(s)
Definition: tableprint_vlc.h:31
av_frame_alloc
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:141
USPPContext::qscale_type
int qscale_type
Definition: vf_uspp.c:45
opt.h
AVOptions.
offset
static const uint8_t offset[511][2]
Definition: vf_uspp.c:81
avcodec_encode_video2
int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, int *got_packet_ptr)
Encode a frame of video.
Definition: utils.c:1848
FLAGS
#define FLAGS
Definition: vf_uspp.c:60
USPPContext::non_b_qp_alloc_size
int non_b_qp_alloc_size
Definition: vf_uspp.c:55
AVPacket::data
uint8_t * data
Definition: avcodec.h:1467
USPPContext::temp
uint16_t * temp[3]
Definition: vf_uspp.c:48
USPPContext::frame_dec
AVFrame * frame_dec
Definition: vf_uspp.c:53
USPPContext::outbuf
uint8_t * outbuf
Definition: vf_uspp.c:50
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_uspp.c:303
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:48
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:53
avcodec_close
int avcodec_close(AVCodecContext *avctx)
Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...
Definition: utils.c:2529
av_reallocp_array
int av_reallocp_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:215
AVFrame::width
int width
width and height of the video frame
Definition: frame.h:230
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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:568
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_uspp.c:455
AVERROR
#define AVERROR(e)
Definition: error.h:43
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:154
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:176
AVFilterContext::priv
void * priv
private data for use by the filter
Definition: avfilter.h:319
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:199
AVCodecContext::flags
int flags
AV_CODEC_FLAG_*.
Definition: avcodec.h:1627
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
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:183
USPPContext::av_class
const AVClass * av_class
Definition: vf_uspp.c:41
count
GLsizei count
Definition: opengl_enc.c:109
CODEC_FLAG_LOW_DELAY
#define CODEC_FLAG_LOW_DELAY
Definition: avcodec.h:997
AVFrame::pict_type
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:252
AV_CODEC_FLAG_QSCALE
#define AV_CODEC_FLAG_QSCALE
Use fixed qscale.
Definition: avcodec.h:734
MAX_LEVEL
#define MAX_LEVEL
Definition: vf_uspp.c:37
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:75
avcodec_alloc_context3
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:149
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:1711
USPPContext::avctx_enc
AVCodecContext * avctx_enc[BLOCK *BLOCK]
Definition: vf_uspp.c:51
AV_OPT_TYPE_BOOL
Definition: opt.h:239
USPPContext::temp_stride
int temp_stride[3]
Definition: vf_uspp.c:46
uspp_inputs
static const AVFilterPad uspp_inputs[]
Definition: vf_uspp.c:475
USPPContext::outbuf_size
int outbuf_size
Definition: vf_uspp.c:49
AVFrame::quality
int quality
quality (between 1 (good) and FF_LAMBDA_MAX (bad))
Definition: frame.h:288
uspp_outputs
static const AVFilterPad uspp_outputs[]
Definition: vf_uspp.c:485
STORE
#define STORE(pos)
outputs
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:385
src
#define src
Definition: vp9dsp.c:530
uspp_options
static const AVOption uspp_options[]
Definition: vf_uspp.c:61
out
FILE * out
Definition: movenc-test.c:54
AVFrame::format
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:242
inputs
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:375
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:505
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:209
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
AVCodecContext
main external API structure.
Definition: avcodec.h:1532
AV_CODEC_ID_SNOW
Definition: avcodec.h:314
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
Definition: audio_convert.c:194
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:69
USPPContext::frame
AVFrame * frame
Definition: vf_uspp.c:52
height
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:69
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
USPPContext::qp
int qp
Definition: vf_uspp.c:44
AVFilter
Filter definition.
Definition: avfilter.h:141
index
int index
Definition: gxfenc.c:89
AVRational
rational number numerator/denominator
Definition: rational.h:43
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:145
avcodec_open2
int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
Initialize the AVCodecContext to use the given AVCodec.
Definition: utils.c:1170
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:130
AVFilterContext::outputs
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:316
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:394
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
OFFSET
#define OFFSET(x)
Definition: vf_uspp.c:59
AVCodecContext::global_quality
int global_quality
Global quality for codecs which cannot change it per frame.
Definition: avcodec.h:1613
flags
static int flags
Definition: cpu.c:47
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_uspp.c:285
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:192
AVCodecContext::gop_size
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1737
stride
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:105
AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:71
if
if(ret< 0)
Definition: vf_mcdeint.c:282
USPPContext::hsub
int hsub
Definition: vf_uspp.c:43
AV_PICTURE_TYPE_B
Bi-dir predicted.
Definition: avutil.h:268
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:77
AVCodecContext::coded_frame
attribute_deprecated AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2945
av_init_packet
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
Definition: avpacket.c:33
USPPContext::log2_count
int log2_count
Definition: vf_uspp.c:42
ff_vf_uspp
AVFilter ff_vf_uspp
Definition: vf_uspp.c:493
opts
AVDictionary * opts
Definition: movenc-test.c:50
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
FF_QP2LAMBDA
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:219
AVFilterContext
An instance of a filter.
Definition: avfilter.h:304
AVFrame::height
int height
Definition: frame.h:230
av_freep
#define av_freep(p)
Definition: tableprint_vlc.h:35
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:193
av_malloc_array
#define av_malloc_array(a, b)
Definition: tableprint_vlc.h:32
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:287
stride
#define stride
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(uspp)
internal.h
internal API functions
USPPContext::non_b_qp_table
uint8_t * non_b_qp_table
Definition: vf_uspp.c:54
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:155
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
AVPacket
This structure stores compressed data.
Definition: avcodec.h:1444
AVCodecContext::strict_std_compliance
int strict_std_compliance
strictly follow the standard (MPEG4, ...).
Definition: avcodec.h:2741
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:565
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
width
static int width
Definition: demuxing_decoding.c:39
block
static int16_t block[64]
Definition: dct-test.c:112
Generated on Mon Feb 15 2016 15:20:45 for FFmpeg by   doxygen 1.8.6