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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 "filters.h"
33#include "video.h"
34
35typedef struct Super2xSaIContext {
36 /* masks used for two pixels interpolation */
37 uint32_t hi_pixel_mask;
38 uint32_t lo_pixel_mask;
39
40 /* masks used for four pixels interpolation */
41 uint32_t q_hi_pixel_mask;
42 uint32_t q_lo_pixel_mask;
43
44 int bpp; ///< bytes per pixel, pixel stride for each (packed) pixel
45 int is_be;
46} Super2xSaIContext;
47
48typedef struct ThreadData {
49 AVFrame *in, *out;
50} ThreadData;
51
52#define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D))
53
54#define INTERPOLATE(A, B) (((A & hi_pixel_mask) >> 1) + ((B & hi_pixel_mask) >> 1) + (A & B & lo_pixel_mask))
55
56#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) \
57 + ((((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)
58
59static int super2xsai(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
60{
61 Super2xSaIContext *s = ctx->priv;
62 ThreadData *td = arg;
63 AVFrame *in = td->in;
64 AVFrame *out = td->out;
65 const uint8_t *src = in->data[0];
66 uint8_t *dst = out->data[0];
67 const int src_linesize = in->linesize[0];
68 const int dst_linesize = out->linesize[0];
69 const int width = in->width;
70 const int height = in->height;
71 unsigned int x, y;
72 uint32_t color[4][4];
73 const uint8_t *src_line[4];
74 const int bpp = s->bpp;
75 const uint32_t hi_pixel_mask = s->hi_pixel_mask;
76 const uint32_t lo_pixel_mask = s->lo_pixel_mask;
77 const uint32_t q_hi_pixel_mask = s->q_hi_pixel_mask;
78 const uint32_t q_lo_pixel_mask = s->q_lo_pixel_mask;
79 const int slice_start = ff_slice_pos(height, jobnr, nb_jobs);
80 const int slice_end = ff_slice_pos(height, jobnr + 1, nb_jobs);
81
82 /* Point to the first 4 lines, first line is duplicated */
83 src_line[0] = src + src_linesize*FFMAX(slice_start - 1, 0);
84 src_line[1] = src + src_linesize*slice_start;
85 src_line[2] = src + src_linesize*FFMIN(slice_start + 1, height-1);
86 src_line[3] = src + src_linesize*FFMIN(slice_start + 2, height-1);
87
88#define READ_COLOR4(dst, src_line, off) dst = *((const uint32_t *)src_line + off)
89#define READ_COLOR3(dst, src_line, off) dst = AV_RL24 (src_line + 3*off)
90#define READ_COLOR2(dst, src_line, off) dst = s->is_be ? AV_RB16(src_line + 2 * off) : AV_RL16(src_line + 2 * off)
91
92 for (y = slice_start; y < slice_end; y++) {
93 uint8_t *dst_line[2];
94
95 dst_line[0] = dst + dst_linesize*2*y;
96 dst_line[1] = dst + dst_linesize*(2*y+1);
97
98 switch (bpp) {
99 case 4:
100 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);
101 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);
102 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);
103 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);
104 break;
105 case 3:
106 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);
107 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);
108 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);
109 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);
110 break;
111 default:
112 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);
113 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);
114 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);
115 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);
116 }
117
118 for (x = 0; x < width; x++) {
119 uint32_t product1a, product1b, product2a, product2b;
120
121//--------------------------------------- B0 B1 B2 B3 0 1 2 3
122// 4 5* 6 S2 -> 4 5* 6 7
123// 1 2 3 S1 8 9 10 11
124// A0 A1 A2 A3 12 13 14 15
125//--------------------------------------
126 if (color[2][1] == color[1][2] && color[1][1] != color[2][2]) {
127 product2b = color[2][1];
128 product1b = product2b;
129 } else if (color[1][1] == color[2][2] && color[2][1] != color[1][2]) {
130 product2b = color[1][1];
131 product1b = product2b;
132 } else if (color[1][1] == color[2][2] && color[2][1] == color[1][2]) {
133 int r = 0;
134
135 r += GET_RESULT(color[1][2], color[1][1], color[1][0], color[3][1]);
136 r += GET_RESULT(color[1][2], color[1][1], color[2][0], color[0][1]);
137 r += GET_RESULT(color[1][2], color[1][1], color[3][2], color[2][3]);
138 r += GET_RESULT(color[1][2], color[1][1], color[0][2], color[1][3]);
139
140 if (r > 0)
141 product1b = color[1][2];
142 else if (r < 0)
143 product1b = color[1][1];
144 else
145 product1b = INTERPOLATE(color[1][1], color[1][2]);
146
147 product2b = product1b;
148 } else {
149 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])
150 product2b = Q_INTERPOLATE(color[2][2], color[2][2], color[2][2], color[2][1]);
151 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])
152 product2b = Q_INTERPOLATE(color[2][1], color[2][1], color[2][1], color[2][2]);
153 else
154 product2b = INTERPOLATE(color[2][1], color[2][2]);
155
156 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])
157 product1b = Q_INTERPOLATE(color[1][2], color[1][2], color[1][2], color[1][1]);
158 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])
159 product1b = Q_INTERPOLATE(color[1][2], color[1][1], color[1][1], color[1][1]);
160 else
161 product1b = INTERPOLATE(color[1][1], color[1][2]);
162 }
163
164 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])
165 product2a = INTERPOLATE(color[2][1], color[1][1]);
166 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])
167 product2a = INTERPOLATE(color[2][1], color[1][1]);
168 else
169 product2a = color[2][1];
170
171 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])
172 product1a = INTERPOLATE(color[2][1], color[1][1]);
173 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])
174 product1a = INTERPOLATE(color[2][1], color[1][1]);
175 else
176 product1a = color[1][1];
177
178 /* Set the calculated pixels */
179 switch (bpp) {
180 case 4:
181 AV_WN32A(dst_line[0] + x * 8, product1a);
182 AV_WN32A(dst_line[0] + x * 8 + 4, product1b);
183 AV_WN32A(dst_line[1] + x * 8, product2a);
184 AV_WN32A(dst_line[1] + x * 8 + 4, product2b);
185 break;
186 case 3:
187 AV_WL24(dst_line[0] + x * 6, product1a);
188 AV_WL24(dst_line[0] + x * 6 + 3, product1b);
189 AV_WL24(dst_line[1] + x * 6, product2a);
190 AV_WL24(dst_line[1] + x * 6 + 3, product2b);
191 break;
192 default: // bpp = 2
193 if (s->is_be) {
194 AV_WB32(dst_line[0] + x * 4, product1a | (product1b << 16));
195 AV_WB32(dst_line[1] + x * 4, product2a | (product2b << 16));
196 } else {
197 AV_WL32(dst_line[0] + x * 4, product1a | (product1b << 16));
198 AV_WL32(dst_line[1] + x * 4, product2a | (product2b << 16));
199 }
200 }
201
202 /* Move color matrix forward */
203 color[0][0] = color[0][1]; color[0][1] = color[0][2]; color[0][2] = color[0][3];
204 color[1][0] = color[1][1]; color[1][1] = color[1][2]; color[1][2] = color[1][3];
205 color[2][0] = color[2][1]; color[2][1] = color[2][2]; color[2][2] = color[2][3];
206 color[3][0] = color[3][1]; color[3][1] = color[3][2]; color[3][2] = color[3][3];
207
208 if (x < width - 3) {
209 x += 3;
210 switch (bpp) {
211 case 4:
212 READ_COLOR4(color[0][3], src_line[0], x);
213 READ_COLOR4(color[1][3], src_line[1], x);
214 READ_COLOR4(color[2][3], src_line[2], x);
215 READ_COLOR4(color[3][3], src_line[3], x);
216 break;
217 case 3:
218 READ_COLOR3(color[0][3], src_line[0], x);
219 READ_COLOR3(color[1][3], src_line[1], x);
220 READ_COLOR3(color[2][3], src_line[2], x);
221 READ_COLOR3(color[3][3], src_line[3], x);
222 break;
223 default: /* case 2 */
224 READ_COLOR2(color[0][3], src_line[0], x);
225 READ_COLOR2(color[1][3], src_line[1], x);
226 READ_COLOR2(color[2][3], src_line[2], x);
227 READ_COLOR2(color[3][3], src_line[3], x);
228 }
229 x -= 3;
230 }
231 }
232
233 /* We're done with one line, so we shift the source lines up */
234 src_line[0] = src_line[1];
235 src_line[1] = src_line[2];
236 src_line[2] = src_line[3];
237
238 /* Read next line */
239 src_line[3] = src_line[2];
240 if (y < height - 3)
241 src_line[3] += src_linesize;
242 } // y loop
243
244 return 0;
245}
246
254
255static int config_input(AVFilterLink *inlink)
256{
257 Super2xSaIContext *s = inlink->dst->priv;
258
259 s->hi_pixel_mask = 0xFEFEFEFE;
260 s->lo_pixel_mask = 0x01010101;
261 s->q_hi_pixel_mask = 0xFCFCFCFC;
262 s->q_lo_pixel_mask = 0x03030303;
263 s->bpp = 4;
264
265 switch (inlink->format) {
266 case AV_PIX_FMT_RGB24:
267 case AV_PIX_FMT_BGR24:
268 s->bpp = 3;
269 break;
270
271 case AV_PIX_FMT_RGB565BE:
272 case AV_PIX_FMT_BGR565BE:
273 s->is_be = 1;
274 av_fallthrough;
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 av_fallthrough;
288 case AV_PIX_FMT_BGR555LE:
289 case AV_PIX_FMT_RGB555LE:
290 s->hi_pixel_mask = 0x7BDE7BDE;
291 s->lo_pixel_mask = 0x04210421;
292 s->q_hi_pixel_mask = 0x739C739C;
293 s->q_lo_pixel_mask = 0x0C630C63;
294 s->bpp = 2;
295 break;
296 }
297
298 return 0;
299}
300
301static int config_output(AVFilterLink *outlink)
302{
303 AVFilterLink *inlink = outlink->src->inputs[0];
304
305 outlink->w = inlink->w*2;
306 outlink->h = inlink->h*2;
307
308 av_log(inlink->dst, AV_LOG_VERBOSE, "fmt:%s size:%dx%d -> size:%dx%d\n",
309 av_get_pix_fmt_name(inlink->format),
310 inlink->w, inlink->h, outlink->w, outlink->h);
311
312 return 0;
313}
314
315static int filter_frame(AVFilterLink *inlink, AVFrame *in)
316{
317 AVFilterContext *ctx = inlink->dst;
318 AVFilterLink *outlink = ctx->outputs[0];
319 ThreadData td;
320 AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
321 if (!out) {
322 av_frame_free(&in);
323 return AVERROR(ENOMEM);
324 }
325 av_frame_copy_props(out, in);
326 out->width = outlink->w;
327 out->height = outlink->h;
328
329 td.in = in, td.out = out;
330 ff_filter_execute(ctx, super2xsai, &td, NULL,
331 FFMIN(in->height, ff_filter_get_nb_threads(ctx)));
332
333 av_frame_free(&in);
334 return ff_filter_frame(outlink, out);
335}
336
337static const AVFilterPad super2xsai_inputs[] = {
338 {
339 .name = "default",
340 .type = AVMEDIA_TYPE_VIDEO,
341 .config_props = config_input,
342 .filter_frame = filter_frame,
343 },
344};
345
346static const AVFilterPad super2xsai_outputs[] = {
347 {
348 .name = "default",
349 .type = AVMEDIA_TYPE_VIDEO,
350 .config_props = config_output,
351 },
352};
353
354const FFFilter ff_vf_super2xsai = {
355 .p.name = "super2xsai",
356 .p.description = NULL_IF_CONFIG_SMALL("Scale the input by 2x using the Super2xSaI pixel art algorithm."),
357 .p.flags = AVFILTER_FLAG_SLICE_THREADS,
358 .priv_size = sizeof(Super2xSaIContext),
359 FILTER_INPUTS(super2xsai_inputs),
360 FILTER_OUTPUTS(super2xsai_outputs),
361 FILTER_PIXFMTS_ARRAY(pix_fmts),
362};
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition dsp.h:87
config_input
static int config_input(AVFilterLink *inlink)
Definition af_acontrast.c:121
ff_vf_super2xsai
const FFFilter ff_vf_super2xsai
Definition vf_super2xsai.c:354
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition avfilter.c:1068
ff_filter_execute
int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg, int *ret, int nb_jobs)
Definition avfilter.c:1696
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition avfilter.c:846
avfilter.h
Main libavfilter public API header.
s
#define s(width, name)
Definition cbs_vp9.c:198
NULL
#define NULL
Definition coverity.c:32
filter_frame
static int filter_frame(DBEDecodeContext *s, AVFrame *frame)
Definition dolby_e.c:1067
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:166
AVERROR
#define AVERROR(e)
Definition error.h:45
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition frame.c:64
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:599
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition log.h:226
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
r
#define r
Definition input.c:42
AV_WB32
#define AV_WB32(p, v)
Definition intreadwrite.h:415
AV_WL32
#define AV_WL32(p, v)
Definition intreadwrite.h:422
AV_WN32A
#define AV_WN32A(p, v)
Definition intreadwrite.h:534
AV_WL24
#define AV_WL24(p, d)
Definition intreadwrite.h:460
config_output
static int config_output(AVBitStreamFilterLink *outlink)
Definition lcevc_merge.c:111
arg
const char * arg
Definition jacosubdec.c:65
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition filters.h:264
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition filters.h:265
ff_slice_pos
static int ff_slice_pos(int total, int jobnr, int nb_jobs)
Compute the boundary index for a slice when work of size total is split into nb_jobs slices.
Definition filters.h:763
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition filters.h:244
av_fallthrough
#define av_fallthrough
Definition attributes.h:67
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:88
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition libkvazaar.c:296
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict, int *got_output)
Handle slice ends.
Definition mpeg12dec.c:1697
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:3380
AVPixelFormat
AVPixelFormat
Pixel format.
Definition pixfmt.h:71
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition pixfmt.h:72
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition pixfmt.h:75
AV_PIX_FMT_BGR565BE
@ AV_PIX_FMT_BGR565BE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), big-endian
Definition pixfmt.h:117
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition pixfmt.h:99
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:114
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition pixfmt.h:102
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition pixfmt.h:101
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition pixfmt.h:100
AV_PIX_FMT_RGB565LE
@ AV_PIX_FMT_RGB565LE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), little-endian
Definition pixfmt.h:113
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:115
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:119
AV_PIX_FMT_RGB565BE
@ AV_PIX_FMT_RGB565BE
packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), big-endian
Definition pixfmt.h:112
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:120
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition pixfmt.h:76
AV_PIX_FMT_BGR565LE
@ AV_PIX_FMT_BGR565LE
packed BGR 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), little-endian
Definition pixfmt.h:118
AVFilterContext
An instance of a filter.
Definition avfilter.h:273
AVFilterContext::inputs
AVFilterLink ** inputs
array of pointers to input links
Definition avfilter.h:281
AVFilterContext::priv
void * priv
private data for use by the filter
Definition avfilter.h:288
AVFilterPad
A filter pad used for either input or output.
Definition filters.h:40
AVFrame
This structure describes decoded (raw) audio or video data.
Definition frame.h:472
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition frame.h:493
AVFrame::width
int width
Definition frame.h:544
AVFrame::height
int height
Definition frame.h:544
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:517
Super2xSaIContext::q_hi_pixel_mask
uint32_t q_hi_pixel_mask
Definition vf_super2xsai.c:41
Super2xSaIContext::bpp
int bpp
bytes per pixel, pixel stride for each (packed) pixel
Definition vf_super2xsai.c:44
Super2xSaIContext::q_lo_pixel_mask
uint32_t q_lo_pixel_mask
Definition vf_super2xsai.c:42
ThreadData
Used for passing data between threads.
Definition dsddec.c:71
ThreadData::out
AVFrame * out
Definition af_adeclick.c:532
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
src
#define src
Definition vp8dsp.c:248
out
static FILE * out
Definition movenc.c:55
ctx
static AVFormatContext * ctx
Definition movenc.c:49
height
#define height
Definition dsp.h:89
width
#define width
Definition dsp.h:89
READ_COLOR2
#define READ_COLOR2(dst, src_line, off)
config_input
static int config_input(AVFilterLink *inlink)
Definition vf_super2xsai.c:255
super2xsai_outputs
static const AVFilterPad super2xsai_outputs[]
Definition vf_super2xsai.c:346
Q_INTERPOLATE
#define Q_INTERPOLATE(A, B, C, D)
Definition vf_super2xsai.c:56
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition vf_super2xsai.c:315
READ_COLOR3
#define READ_COLOR3(dst, src_line, off)
super2xsai
static int super2xsai(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition vf_super2xsai.c:59
GET_RESULT
#define GET_RESULT(A, B, C, D)
Definition vf_super2xsai.c:52
config_output
static int config_output(AVFilterLink *outlink)
Definition vf_super2xsai.c:301
READ_COLOR4
#define READ_COLOR4(dst, src_line, off)
INTERPOLATE
#define INTERPOLATE(A, B)
Definition vf_super2xsai.c:54
super2xsai_inputs
static const AVFilterPad super2xsai_inputs[]
Definition vf_super2xsai.c:337
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:89
slice_start
static int slice_start(SliceContext *sc, VVCContext *s, VVCFrameContext *fc, const CodedBitstreamUnit *unit, const int is_first_slice)
Definition dec.c:844
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