FFmpeg
vf_super2xsai.c
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1 /*
2  * Copyright (c) 2010 Niel van der Westhuizen <nielkie@gmail.com>
3  * Copyright (c) 2002 A'rpi
4  * Copyright (c) 1997-2001 ZSNES Team ( zsknight@zsnes.com / _demo_@zsnes.com )
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 
23 /**
24  * @file
25  * Super 2xSaI video filter
26  * Ported from MPlayer libmpcodecs/vf_2xsai.c.
27  */
28 
29 #include "libavutil/pixdesc.h"
30 #include "libavutil/intreadwrite.h"
31 #include "avfilter.h"
32 #include "formats.h"
33 #include "internal.h"
34 #include "video.h"
35 
36 typedef struct Super2xSaIContext {
37  /* masks used for two pixels interpolation */
38  uint32_t hi_pixel_mask;
39  uint32_t lo_pixel_mask;
40 
41  /* masks used for four pixels interpolation */
42  uint32_t q_hi_pixel_mask;
43  uint32_t q_lo_pixel_mask;
44 
45  int bpp; ///< bytes per pixel, pixel stride for each (packed) pixel
46  int is_be;
47 } Super2xSaIContext;
48 
49 typedef struct ThreadData {
50  AVFrame *in, *out;
51 } ThreadData;
52 
53 #define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D))
54 
55 #define INTERPOLATE(A, B) (((A & hi_pixel_mask) >> 1) + ((B & hi_pixel_mask) >> 1) + (A & B & lo_pixel_mask))
56 
57 #define Q_INTERPOLATE(A, B, C, D) ((A & q_hi_pixel_mask) >> 2) + ((B & q_hi_pixel_mask) >> 2) + ((C & q_hi_pixel_mask) >> 2) + ((D & q_hi_pixel_mask) >> 2) \
58  + ((((A & q_lo_pixel_mask) + (B & q_lo_pixel_mask) + (C & q_lo_pixel_mask) + (D & q_lo_pixel_mask)) >> 2) & q_lo_pixel_mask)
59 
60 static int super2xsai(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
61 {
62  Super2xSaIContext *s = ctx->priv;
63  ThreadData *td = arg;
64  AVFrame *in = td->in;
65  AVFrame *out = td->out;
66  const uint8_t *src = in->data[0];
67  uint8_t *dst = out->data[0];
68  const int src_linesize = in->linesize[0];
69  const int dst_linesize = out->linesize[0];
70  const int width = in->width;
71  const int height = in->height;
72  unsigned int x, y;
73  uint32_t color[4][4];
74  const uint8_t *src_line[4];
75  const int bpp = s->bpp;
76  const uint32_t hi_pixel_mask = s->hi_pixel_mask;
77  const uint32_t lo_pixel_mask = s->lo_pixel_mask;
78  const uint32_t q_hi_pixel_mask = s->q_hi_pixel_mask;
79  const uint32_t q_lo_pixel_mask = s->q_lo_pixel_mask;
80  const int slice_start = (height * jobnr) / nb_jobs;
81  const int slice_end = (height * (jobnr+1)) / nb_jobs;
82 
83  /* Point to the first 4 lines, first line is duplicated */
84  src_line[0] = src + src_linesize*FFMAX(slice_start - 1, 0);
85  src_line[1] = src + src_linesize*slice_start;
86  src_line[2] = src + src_linesize*FFMIN(slice_start + 1, height-1);
87  src_line[3] = src + src_linesize*FFMIN(slice_start + 2, height-1);
88 
89 #define READ_COLOR4(dst, src_line, off) dst = *((const uint32_t *)src_line + off)
90 #define READ_COLOR3(dst, src_line, off) dst = AV_RL24 (src_line + 3*off)
91 #define READ_COLOR2(dst, src_line, off) dst = s->is_be ? AV_RB16(src_line + 2 * off) : AV_RL16(src_line + 2 * off)
92 
93  for (y = slice_start; y < slice_end; y++) {
94  uint8_t *dst_line[2];
95 
96  dst_line[0] = dst + dst_linesize*2*y;
97  dst_line[1] = dst + dst_linesize*(2*y+1);
98 
99  switch (bpp) {
100  case 4:
101  READ_COLOR4(color[0][0], src_line[0], 0); color[0][1] = color[0][0]; READ_COLOR4(color[0][2], src_line[0], 1); READ_COLOR4(color[0][3], src_line[0], 2);
102  READ_COLOR4(color[1][0], src_line[1], 0); color[1][1] = color[1][0]; READ_COLOR4(color[1][2], src_line[1], 1); READ_COLOR4(color[1][3], src_line[1], 2);
103  READ_COLOR4(color[2][0], src_line[2], 0); color[2][1] = color[2][0]; READ_COLOR4(color[2][2], src_line[2], 1); READ_COLOR4(color[2][3], src_line[2], 2);
104  READ_COLOR4(color[3][0], src_line[3], 0); color[3][1] = color[3][0]; READ_COLOR4(color[3][2], src_line[3], 1); READ_COLOR4(color[3][3], src_line[3], 2);
105  break;
106  case 3:
107  READ_COLOR3(color[0][0], src_line[0], 0); color[0][1] = color[0][0]; READ_COLOR3(color[0][2], src_line[0], 1); READ_COLOR3(color[0][3], src_line[0], 2);
108  READ_COLOR3(color[1][0], src_line[1], 0); color[1][1] = color[1][0]; READ_COLOR3(color[1][2], src_line[1], 1); READ_COLOR3(color[1][3], src_line[1], 2);
109  READ_COLOR3(color[2][0], src_line[2], 0); color[2][1] = color[2][0]; READ_COLOR3(color[2][2], src_line[2], 1); READ_COLOR3(color[2][3], src_line[2], 2);
110  READ_COLOR3(color[3][0], src_line[3], 0); color[3][1] = color[3][0]; READ_COLOR3(color[3][2], src_line[3], 1); READ_COLOR3(color[3][3], src_line[3], 2);
111  break;
112  default:
113  READ_COLOR2(color[0][0], src_line[0], 0); color[0][1] = color[0][0]; READ_COLOR2(color[0][2], src_line[0], 1); READ_COLOR2(color[0][3], src_line[0], 2);
114  READ_COLOR2(color[1][0], src_line[1], 0); color[1][1] = color[1][0]; READ_COLOR2(color[1][2], src_line[1], 1); READ_COLOR2(color[1][3], src_line[1], 2);
115  READ_COLOR2(color[2][0], src_line[2], 0); color[2][1] = color[2][0]; READ_COLOR2(color[2][2], src_line[2], 1); READ_COLOR2(color[2][3], src_line[2], 2);
116  READ_COLOR2(color[3][0], src_line[3], 0); color[3][1] = color[3][0]; READ_COLOR2(color[3][2], src_line[3], 1); READ_COLOR2(color[3][3], src_line[3], 2);
117  }
118 
119  for (x = 0; x < width; x++) {
120  uint32_t product1a, product1b, product2a, product2b;
121 
122 //--------------------------------------- B0 B1 B2 B3 0 1 2 3
123 // 4 5* 6 S2 -> 4 5* 6 7
124 // 1 2 3 S1 8 9 10 11
125 // A0 A1 A2 A3 12 13 14 15
126 //--------------------------------------
127  if (color[2][1] == color[1][2] && color[1][1] != color[2][2]) {
128  product2b = color[2][1];
129  product1b = product2b;
130  } else if (color[1][1] == color[2][2] && color[2][1] != color[1][2]) {
131  product2b = color[1][1];
132  product1b = product2b;
133  } else if (color[1][1] == color[2][2] && color[2][1] == color[1][2]) {
134  int r = 0;
135 
136  r += GET_RESULT(color[1][2], color[1][1], color[1][0], color[3][1]);
137  r += GET_RESULT(color[1][2], color[1][1], color[2][0], color[0][1]);
138  r += GET_RESULT(color[1][2], color[1][1], color[3][2], color[2][3]);
139  r += GET_RESULT(color[1][2], color[1][1], color[0][2], color[1][3]);
140 
141  if (r > 0)
142  product1b = color[1][2];
143  else if (r < 0)
144  product1b = color[1][1];
145  else
146  product1b = INTERPOLATE(color[1][1], color[1][2]);
147 
148  product2b = product1b;
149  } else {
150  if (color[1][2] == color[2][2] && color[2][2] == color[3][1] && color[2][1] != color[3][2] && color[2][2] != color[3][0])
151  product2b = Q_INTERPOLATE(color[2][2], color[2][2], color[2][2], color[2][1]);
152  else if (color[1][1] == color[2][1] && color[2][1] == color[3][2] && color[3][1] != color[2][2] && color[2][1] != color[3][3])
153  product2b = Q_INTERPOLATE(color[2][1], color[2][1], color[2][1], color[2][2]);
154  else
155  product2b = INTERPOLATE(color[2][1], color[2][2]);
156 
157  if (color[1][2] == color[2][2] && color[1][2] == color[0][1] && color[1][1] != color[0][2] && color[1][2] != color[0][0])
158  product1b = Q_INTERPOLATE(color[1][2], color[1][2], color[1][2], color[1][1]);
159  else if (color[1][1] == color[2][1] && color[1][1] == color[0][2] && color[0][1] != color[1][2] && color[1][1] != color[0][3])
160  product1b = Q_INTERPOLATE(color[1][2], color[1][1], color[1][1], color[1][1]);
161  else
162  product1b = INTERPOLATE(color[1][1], color[1][2]);
163  }
164 
165  if (color[1][1] == color[2][2] && color[2][1] != color[1][2] && color[1][0] == color[1][1] && color[1][1] != color[3][2])
166  product2a = INTERPOLATE(color[2][1], color[1][1]);
167  else if (color[1][1] == color[2][0] && color[1][2] == color[1][1] && color[1][0] != color[2][1] && color[1][1] != color[3][0])
168  product2a = INTERPOLATE(color[2][1], color[1][1]);
169  else
170  product2a = color[2][1];
171 
172  if (color[2][1] == color[1][2] && color[1][1] != color[2][2] && color[2][0] == color[2][1] && color[2][1] != color[0][2])
173  product1a = INTERPOLATE(color[2][1], color[1][1]);
174  else if (color[1][0] == color[2][1] && color[2][2] == color[2][1] && color[2][0] != color[1][1] && color[2][1] != color[0][0])
175  product1a = INTERPOLATE(color[2][1], color[1][1]);
176  else
177  product1a = color[1][1];
178 
179  /* Set the calculated pixels */
180  switch (bpp) {
181  case 4:
182  AV_WN32A(dst_line[0] + x * 8, product1a);
183  AV_WN32A(dst_line[0] + x * 8 + 4, product1b);
184  AV_WN32A(dst_line[1] + x * 8, product2a);
185  AV_WN32A(dst_line[1] + x * 8 + 4, product2b);
186  break;
187  case 3:
188  AV_WL24(dst_line[0] + x * 6, product1a);
189  AV_WL24(dst_line[0] + x * 6 + 3, product1b);
190  AV_WL24(dst_line[1] + x * 6, product2a);
191  AV_WL24(dst_line[1] + x * 6 + 3, product2b);
192  break;
193  default: // bpp = 2
194  if (s->is_be) {
195  AV_WB32(dst_line[0] + x * 4, product1a | (product1b << 16));
196  AV_WB32(dst_line[1] + x * 4, product2a | (product2b << 16));
197  } else {
198  AV_WL32(dst_line[0] + x * 4, product1a | (product1b << 16));
199  AV_WL32(dst_line[1] + x * 4, product2a | (product2b << 16));
200  }
201  }
202 
203  /* Move color matrix forward */
204  color[0][0] = color[0][1]; color[0][1] = color[0][2]; color[0][2] = color[0][3];
205  color[1][0] = color[1][1]; color[1][1] = color[1][2]; color[1][2] = color[1][3];
206  color[2][0] = color[2][1]; color[2][1] = color[2][2]; color[2][2] = color[2][3];
207  color[3][0] = color[3][1]; color[3][1] = color[3][2]; color[3][2] = color[3][3];
208 
209  if (x < width - 3) {
210  x += 3;
211  switch (bpp) {
212  case 4:
213  READ_COLOR4(color[0][3], src_line[0], x);
214  READ_COLOR4(color[1][3], src_line[1], x);
215  READ_COLOR4(color[2][3], src_line[2], x);
216  READ_COLOR4(color[3][3], src_line[3], x);
217  break;
218  case 3:
219  READ_COLOR3(color[0][3], src_line[0], x);
220  READ_COLOR3(color[1][3], src_line[1], x);
221  READ_COLOR3(color[2][3], src_line[2], x);
222  READ_COLOR3(color[3][3], src_line[3], x);
223  break;
224  default: /* case 2 */
225  READ_COLOR2(color[0][3], src_line[0], x);
226  READ_COLOR2(color[1][3], src_line[1], x);
227  READ_COLOR2(color[2][3], src_line[2], x);
228  READ_COLOR2(color[3][3], src_line[3], x);
229  }
230  x -= 3;
231  }
232  }
233 
234  /* We're done with one line, so we shift the source lines up */
235  src_line[0] = src_line[1];
236  src_line[1] = src_line[2];
237  src_line[2] = src_line[3];
238 
239  /* Read next line */
240  src_line[3] = src_line[2];
241  if (y < height - 3)
242  src_line[3] += src_linesize;
243  } // y loop
244 
245  return 0;
246 }
247 
248 static const enum AVPixelFormat pix_fmts[] = {
249  AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
250  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
251  AV_PIX_FMT_RGB565BE, AV_PIX_FMT_BGR565BE, AV_PIX_FMT_RGB555BE, AV_PIX_FMT_BGR555BE,
252  AV_PIX_FMT_RGB565LE, AV_PIX_FMT_BGR565LE, AV_PIX_FMT_RGB555LE, AV_PIX_FMT_BGR555LE,
253  AV_PIX_FMT_NONE
254 };
255 
256 static int config_input(AVFilterLink *inlink)
257 {
258  Super2xSaIContext *s = inlink->dst->priv;
259 
260  s->hi_pixel_mask = 0xFEFEFEFE;
261  s->lo_pixel_mask = 0x01010101;
262  s->q_hi_pixel_mask = 0xFCFCFCFC;
263  s->q_lo_pixel_mask = 0x03030303;
264  s->bpp = 4;
265 
266  switch (inlink->format) {
267  case AV_PIX_FMT_RGB24:
268  case AV_PIX_FMT_BGR24:
269  s->bpp = 3;
270  break;
271 
272  case AV_PIX_FMT_RGB565BE:
273  case AV_PIX_FMT_BGR565BE:
274  s->is_be = 1;
275  case AV_PIX_FMT_RGB565LE:
276  case AV_PIX_FMT_BGR565LE:
277  s->hi_pixel_mask = 0xF7DEF7DE;
278  s->lo_pixel_mask = 0x08210821;
279  s->q_hi_pixel_mask = 0xE79CE79C;
280  s->q_lo_pixel_mask = 0x18631863;
281  s->bpp = 2;
282  break;
283 
284  case AV_PIX_FMT_BGR555BE:
285  case AV_PIX_FMT_RGB555BE:
286  s->is_be = 1;
287  case AV_PIX_FMT_BGR555LE:
288  case AV_PIX_FMT_RGB555LE:
289  s->hi_pixel_mask = 0x7BDE7BDE;
290  s->lo_pixel_mask = 0x04210421;
291  s->q_hi_pixel_mask = 0x739C739C;
292  s->q_lo_pixel_mask = 0x0C630C63;
293  s->bpp = 2;
294  break;
295  }
296 
297  return 0;
298 }
299 
300 static int config_output(AVFilterLink *outlink)
301 {
302  AVFilterLink *inlink = outlink->src->inputs[0];
303 
304  outlink->w = inlink->w*2;
305  outlink->h = inlink->h*2;
306 
307  av_log(inlink->dst, AV_LOG_VERBOSE, "fmt:%s size:%dx%d -> size:%dx%d\n",
308  av_get_pix_fmt_name(inlink->format),
309  inlink->w, inlink->h, outlink->w, outlink->h);
310 
311  return 0;
312 }
313 
314 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
315 {
316  AVFilterContext *ctx = inlink->dst;
317  AVFilterLink *outlink = ctx->outputs[0];
318  ThreadData td;
319  AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
320  if (!out) {
321  av_frame_free(&in);
322  return AVERROR(ENOMEM);
323  }
324  av_frame_copy_props(out, in);
325  out->width = outlink->w;
326  out->height = outlink->h;
327 
328  td.in = in, td.out = out;
329  ff_filter_execute(ctx, super2xsai, &td, NULL,
330  FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
331 
332  av_frame_free(&in);
333  return ff_filter_frame(outlink, out);
334 }
335 
336 static const AVFilterPad super2xsai_inputs[] = {
337  {
338  .name = "default",
339  .type = AVMEDIA_TYPE_VIDEO,
340  .config_props = config_input,
341  .filter_frame = filter_frame,
342  },
343 };
344 
345 static const AVFilterPad super2xsai_outputs[] = {
346  {
347  .name = "default",
348  .type = AVMEDIA_TYPE_VIDEO,
349  .config_props = config_output,
350  },
351 };
352 
353 const AVFilter ff_vf_super2xsai = {
354  .name = "super2xsai",
355  .description = NULL_IF_CONFIG_SMALL("Scale the input by 2x using the Super2xSaI pixel art algorithm."),
356  .priv_size = sizeof(Super2xSaIContext),
357  FILTER_INPUTS(super2xsai_inputs),
358  FILTER_OUTPUTS(super2xsai_outputs),
359  FILTER_PIXFMTS_ARRAY(pix_fmts),
360  .flags = AVFILTER_FLAG_SLICE_THREADS,
361 };
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
super2xsai_outputs
static const AVFilterPad super2xsai_outputs[]
Definition: vf_super2xsai.c:345
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
r
const char * r
Definition: vf_curves.c:116
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
AV_WL32
#define AV_WL32(p, v)
Definition: intreadwrite.h:426
out
FILE * out
Definition: movenc.c:54
color
Definition: vf_paletteuse.c:600
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:999
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
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
Super2xSaIContext
Definition: vf_super2xsai.c:36
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:116
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:325
pixdesc.h
AVFrame::width
int width
Definition: frame.h:397
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_super2xsai.c:256
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
Super2xSaIContext::bpp
int bpp
bytes per pixel, pixel stride for each (packed) pixel
Definition: vf_super2xsai.c:45
AV_WN32A
#define AV_WN32A(p, v)
Definition: intreadwrite.h:538
Super2xSaIContext::lo_pixel_mask
uint32_t lo_pixel_mask
Definition: vf_super2xsai.c:39
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
FFMAX
#define FFMAX(a, b)
Definition: macros.h:47
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:175
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:473
super2xsai_inputs
static const AVFilterPad super2xsai_inputs[]
Definition: vf_super2xsai.c:336
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:154
AV_PIX_FMT_RGB555BE
@ AV_PIX_FMT_RGB555BE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), big-endian , X=unused/undefined
Definition: pixfmt.h:107
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:346
formats.h
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:49
width
#define width
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:256
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2013
ctx
AVFormatContext * ctx
Definition: movenc.c:48
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
arg
const char * arg
Definition: jacosubdec.c:67
AV_PIX_FMT_RGB565LE
@ AV_PIX_FMT_RGB565LE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
Definition: pixfmt.h:106
NULL
#define NULL
Definition: coverity.c:32
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_super2xsai.c:314
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:603
Super2xSaIContext::q_lo_pixel_mask
uint32_t q_lo_pixel_mask
Definition: vf_super2xsai.c:43
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:416
AV_WL24
#define AV_WL24(p, d)
Definition: intreadwrite.h:464
AV_PIX_FMT_BGR565LE
@ AV_PIX_FMT_BGR565LE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
Definition: pixfmt.h:111
ff_vf_super2xsai
const AVFilter ff_vf_super2xsai
Definition: vf_super2xsai.c:353
AV_PIX_FMT_BGR555BE
@ AV_PIX_FMT_BGR555BE
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), big-endian , X=unused/undefined
Definition: pixfmt.h:112
READ_COLOR3
#define READ_COLOR3(dst, src_line, off)
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
Super2xSaIContext::q_hi_pixel_mask
uint32_t q_hi_pixel_mask
Definition: vf_super2xsai.c:42
Super2xSaIContext::is_be
int is_be
Definition: vf_super2xsai.c:46
AV_WB32
#define AV_WB32(p, v)
Definition: intreadwrite.h:419
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_super2xsai.c:300
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
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
READ_COLOR2
#define READ_COLOR2(dst, src_line, off)
Super2xSaIContext::hi_pixel_mask
uint32_t hi_pixel_mask
Definition: vf_super2xsai.c:38
height
#define height
super2xsai
static int super2xsai(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_super2xsai.c:60
GET_RESULT
#define GET_RESULT(A, B, C, D)
Definition: vf_super2xsai.c:53
AV_PIX_FMT_BGR565BE
@ AV_PIX_FMT_BGR565BE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
Definition: pixfmt.h:110
INTERPOLATE
#define INTERPOLATE(A, B)
Definition: vf_super2xsai.c:55
internal.h
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
AV_PIX_FMT_RGB555LE
@ AV_PIX_FMT_RGB555LE
packed RGB 5:5:5, 16bpp, (msb)1X 5R 5G 5B(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:108
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:783
ThreadData
Used for passing data between threads.
Definition: dsddec.c:68
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:55
AVFilter
Filter definition.
Definition: avfilter.h:171
AVFrame::height
int height
Definition: frame.h:397
Q_INTERPOLATE
#define Q_INTERPOLATE(A, B, C, D)
Definition: vf_super2xsai.c:57
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
avfilter.h
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_super2xsai.c:248
AV_PIX_FMT_RGB565BE
@ AV_PIX_FMT_RGB565BE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
Definition: pixfmt.h:105
AVFilterContext
An instance of a filter.
Definition: avfilter.h:408
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:127
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_BGR555LE
@ AV_PIX_FMT_BGR555LE
packed BGR 5:5:5, 16bpp, (msb)1X 5B 5G 5R(lsb), little-endian, X=unused/undefined
Definition: pixfmt.h:113
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
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:370
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
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:142
av_get_pix_fmt_name
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2595
READ_COLOR4
#define READ_COLOR4(dst, src_line, off)
Generated on Fri Aug 12 2022 19:21:57 for FFmpeg by   doxygen 1.8.17