FFmpeg  4.4.6
vf_shear.c
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1 /*
2  * Copyright (c) 2021 Paul B Mahol
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/avstring.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/intreadwrite.h"
24 #include "libavutil/parseutils.h"
25 #include "libavutil/pixdesc.h"
26 
27 #include "avfilter.h"
28 #include "drawutils.h"
29 #include "internal.h"
30 #include "video.h"
31 
32 #include <float.h>
33 
34 typedef struct ShearContext {
35  const AVClass *class;
36 
37  float shx, shy;
38  int interp;
39 
40  uint8_t fillcolor[4]; ///< color expressed either in YUVA or RGBA colorspace for the padding area
43  int nb_planes;
44  int depth;
47 
48  int hsub, vsub;
49  int planewidth[4];
50  int planeheight[4];
51 
52  int (*filter_slice[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
53 } ShearContext;
54 
55 typedef struct ThreadData {
56  AVFrame *in, *out;
57 } ThreadData;
58 
59 #define OFFSET(x) offsetof(ShearContext, x)
60 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
61 
62 static const AVOption shear_options[] = {
63  { "shx", "set x shear factor", OFFSET(shx), AV_OPT_TYPE_FLOAT, {.dbl=0.}, -2, 2, .flags=FLAGS },
64  { "shy", "set y shear factor", OFFSET(shy), AV_OPT_TYPE_FLOAT, {.dbl=0.}, -2, 2, .flags=FLAGS },
65  { "fillcolor", "set background fill color", OFFSET(fillcolor_str), AV_OPT_TYPE_STRING, {.str="black"}, 0, 0, .flags=FLAGS },
66  { "c", "set background fill color", OFFSET(fillcolor_str), AV_OPT_TYPE_STRING, {.str="black"}, 0, 0, .flags=FLAGS },
67  { "interp", "set interpolation", OFFSET(interp), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, .flags=FLAGS, "interp" },
68  { "nearest", "nearest neighbour", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, .flags=FLAGS, "interp" },
69  { "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, .flags=FLAGS, "interp" },
70  { NULL }
71 };
72 
74 
76 {
77  ShearContext *s = ctx->priv;
78 
79  if (!strcmp(s->fillcolor_str, "none"))
80  s->fillcolor_enable = 0;
81  else if (av_parse_color(s->fillcolor, s->fillcolor_str, -1, ctx) >= 0)
82  s->fillcolor_enable = 1;
83  else
84  return AVERROR(EINVAL);
85  return 0;
86 }
87 
89 {
90  static const enum AVPixelFormat pix_fmts[] = {
115  };
116 
118  if (!fmts_list)
119  return AVERROR(ENOMEM);
120  return ff_set_common_formats(ctx, fmts_list);
121 }
122 
123 #define NN(type, name) \
124 static int filter_slice_nn##name(AVFilterContext *ctx, void *arg, int jobnr, \
125  int nb_jobs) \
126 { \
127  ThreadData *td = arg; \
128  AVFrame *in = td->in; \
129  AVFrame *out = td->out; \
130  ShearContext *s = ctx->priv; \
131  const float shx = s->shx; \
132  const float shy = s->shy; \
133  \
134  for (int p = 0; p < s->nb_planes; p++) { \
135  const int hsub = (p == 1 || p == 2) ? s->hsub: 1; \
136  const int vsub = (p == 1 || p == 2) ? s->vsub: 1; \
137  const int width = s->planewidth[p]; \
138  const int height = s->planeheight[p]; \
139  const int wx = vsub * shx * height * 0.5f / hsub; \
140  const int wy = hsub * shy * width * 0.5f / vsub; \
141  const int slice_start = (height * jobnr) / nb_jobs; \
142  const int slice_end = (height * (jobnr+1)) / nb_jobs; \
143  const int src_linesize = in->linesize[p] / sizeof(type); \
144  const int dst_linesize = out->linesize[p] / sizeof(type); \
145  const type *src = (const type *)in->data[p]; \
146  type *dst = (type *)out->data[p] + slice_start * dst_linesize; \
147  \
148  for (int y = slice_start; y < slice_end; y++) { \
149  for (int x = 0; x < width; x++) { \
150  int sx = x + vsub * shx * y / hsub - wx; \
151  int sy = y + hsub * shy * x / vsub - wy; \
152  \
153  if (sx >= 0 && sx < width - 1 && \
154  sy >= 0 && sy < height - 1) { \
155  dst[x] = src[sy * src_linesize + sx]; \
156  } \
157  } \
158  \
159  dst += dst_linesize; \
160  } \
161  } \
162  \
163  return 0; \
164 }
165 
166 NN(uint8_t, 8)
167 NN(uint16_t, 16)
168 
169 #define BL(type, name) \
170 static int filter_slice_bl##name(AVFilterContext *ctx, void *arg, int jobnr, \
171  int nb_jobs) \
172 { \
173  ThreadData *td = arg; \
174  AVFrame *in = td->in; \
175  AVFrame *out = td->out; \
176  ShearContext *s = ctx->priv; \
177  const int depth = s->depth; \
178  const float shx = s->shx; \
179  const float shy = s->shy; \
180  \
181  for (int p = 0; p < s->nb_planes; p++) { \
182  const int hsub = (p == 1 || p == 2) ? s->hsub: 1; \
183  const int vsub = (p == 1 || p == 2) ? s->vsub: 1; \
184  const int width = s->planewidth[p]; \
185  const int height = s->planeheight[p]; \
186  const float wx = vsub * shx * height * 0.5f / hsub; \
187  const float wy = hsub * shy * width * 0.5f / vsub; \
188  const int slice_start = (height * jobnr) / nb_jobs; \
189  const int slice_end = (height * (jobnr+1)) / nb_jobs; \
190  const int src_linesize = in->linesize[p] / sizeof(type); \
191  const int dst_linesize = out->linesize[p] / sizeof(type); \
192  const type *src = (const type *)in->data[p]; \
193  type *dst = (type *)out->data[p] + slice_start * dst_linesize; \
194  \
195  for (int y = slice_start; y < slice_end; y++) { \
196  for (int x = 0; x < width; x++) { \
197  const float sx = x + vsub * shx * y / hsub - wx; \
198  const float sy = y + hsub * shy * x / vsub - wy; \
199  \
200  if (sx >= 0 && sx < width - 1 && \
201  sy >= 0 && sy < height - 1) { \
202  float sum = 0.f; \
203  int ax = floorf(sx); \
204  int ay = floorf(sy); \
205  float du = sx - ax; \
206  float dv = sy - ay; \
207  int bx = FFMIN(ax + 1, width - 1); \
208  int by = FFMIN(ay + 1, height - 1); \
209  \
210  sum += (1.f - du) * (1.f - dv) * src[ay * src_linesize + ax];\
211  sum += ( du) * (1.f - dv) * src[ay * src_linesize + bx];\
212  sum += (1.f - du) * ( dv) * src[by * src_linesize + ax];\
213  sum += ( du) * ( dv) * src[by * src_linesize + bx];\
214  dst[x] = av_clip_uintp2_c(lrintf(sum), depth); \
215  } \
216  } \
217  \
218  dst += dst_linesize; \
219  } \
220  } \
221  \
222  return 0; \
223 }
224 
225 BL(uint8_t, 8)
226 BL(uint16_t, 16)
227 
228 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
229 {
230  AVFilterContext *ctx = inlink->dst;
231  ShearContext *s = ctx->priv;
232  AVFilterLink *outlink = ctx->outputs[0];
233  ThreadData td;
234  AVFrame *out;
235 
236  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
237  if (!out) {
238  av_frame_free(&in);
239  return AVERROR(ENOMEM);
240  }
242 
243  /* fill background */
244  if (s->fillcolor_enable)
245  ff_fill_rectangle(&s->draw, &s->color, out->data, out->linesize,
246  0, 0, outlink->w, outlink->h);
247 
248  td.in = in, td.out = out;
249  ctx->internal->execute(ctx, s->filter_slice[s->interp], &td, NULL, FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx)));
250 
251  av_frame_free(&in);
252  return ff_filter_frame(outlink, out);
253 }
254 
255 static int config_output(AVFilterLink *outlink)
256 {
257  AVFilterContext *ctx = outlink->src;
258  ShearContext *s = ctx->priv;
260 
261  s->nb_planes = av_pix_fmt_count_planes(outlink->format);
262  s->depth = desc->comp[0].depth;
263  s->hsub = 1 << desc->log2_chroma_w;
264  s->vsub = 1 << desc->log2_chroma_h;
265  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(ctx->inputs[0]->w, desc->log2_chroma_w);
266  s->planewidth[0] = s->planewidth[3] = ctx->inputs[0]->w;
267  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(ctx->inputs[0]->h, desc->log2_chroma_h);
268  s->planeheight[0] = s->planeheight[3] = ctx->inputs[0]->h;
269 
270  ff_draw_init(&s->draw, outlink->format, 0);
271  ff_draw_color(&s->draw, &s->color, s->fillcolor);
272 
273  s->filter_slice[0] = s->depth <= 8 ? filter_slice_nn8 : filter_slice_nn16;
274  s->filter_slice[1] = s->depth <= 8 ? filter_slice_bl8 : filter_slice_bl16;
275 
276  return 0;
277 }
278 
280  const char *cmd,
281  const char *arg,
282  char *res,
283  int res_len,
284  int flags)
285 {
286  ShearContext *s = ctx->priv;
287  int ret;
288 
289  ret = ff_filter_process_command(ctx, cmd, arg, res, res_len, flags);
290  if (ret < 0)
291  return ret;
292 
293  ret = init(ctx);
294  if (ret < 0)
295  return ret;
296  ff_draw_color(&s->draw, &s->color, s->fillcolor);
297 
298  return 0;
299 }
300 
301 static const AVFilterPad inputs[] = {
302  {
303  .name = "default",
304  .type = AVMEDIA_TYPE_VIDEO,
305  .filter_frame = filter_frame,
306  },
307  { NULL }
308 };
309 
310 static const AVFilterPad outputs[] = {
311  {
312  .name = "default",
313  .type = AVMEDIA_TYPE_VIDEO,
314  .config_props = config_output,
315  },
316  { NULL }
317 };
318 
320  .name = "shear",
321  .description = NULL_IF_CONFIG_SMALL("Shear transform the input image."),
322  .priv_size = sizeof(ShearContext),
323  .init = init,
325  .inputs = inputs,
326  .outputs = outputs,
327  .priv_class = &shear_class,
330 };
#define av_cold
Definition: attributes.h:88
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
uint8_t
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1096
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:882
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
Main libavfilter public API header.
#define flags(name, subs,...)
Definition: cbs_av1.c:572
#define s(width, name)
Definition: cbs_vp9.c:257
#define FFMIN(a, b)
Definition: common.h:105
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
#define NULL
Definition: coverity.c:32
int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags)
Init a draw context.
Definition: drawutils.c:84
void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4])
Prepare a color.
Definition: drawutils.c:137
void ff_fill_rectangle(FFDrawContext *draw, FFDrawColor *color, uint8_t *dst[], int dst_linesize[], int dst_x, int dst_y, int w, int h)
Fill a rectangle with an uniform color.
Definition: drawutils.c:224
misc drawing utilities
int
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:587
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:286
@ AV_OPT_TYPE_CONST
Definition: opt.h:234
@ AV_OPT_TYPE_INT
Definition: opt.h:225
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
@ AV_OPT_TYPE_STRING
Definition: opt.h:229
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:126
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
const char * arg
Definition: jacosubdec.c:66
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:309
const char * desc
Definition: libsvtav1.c:79
AVOptions.
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, void *log_ctx)
Put the RGBA values that correspond to color_string in rgba_color.
Definition: parseutils.c:354
misc parsing utilities
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2613
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:420
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:410
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:405
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:379
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:421
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:414
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:438
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:441
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:436
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:434
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:415
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:381
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:416
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:433
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:437
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:407
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:100
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:177
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:215
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:176
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:168
@ 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
@ 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
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:439
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:408
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:380
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:382
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:411
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:401
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:383
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:419
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:443
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:442
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:418
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:409
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:435
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:417
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:440
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:412
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
#define td
Definition: regdef.h:70
Describe the class of an AVClass context structure.
Definition: log.h:67
An instance of a filter.
Definition: avfilter.h:341
A list of supported formats for one end of a filter link.
Definition: formats.h:65
A filter pad used for either input or output.
Definition: internal.h:54
const char * name
Pad name.
Definition: internal.h:60
Filter definition.
Definition: avfilter.h:145
const char * name
Filter name.
Definition: avfilter.h:149
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1699
This structure describes decoded (raw) audio or video data.
Definition: frame.h:318
AVOption.
Definition: opt.h:248
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
float shx
Definition: vf_shear.c:37
int planeheight[4]
Definition: vf_shear.c:50
uint8_t fillcolor[4]
color expressed either in YUVA or RGBA colorspace for the padding area
Definition: vf_shear.c:40
float shy
Definition: vf_shear.c:37
int planewidth[4]
Definition: vf_shear.c:49
int interp
Definition: vf_shear.c:38
int fillcolor_enable
Definition: vf_shear.c:42
FFDrawContext draw
Definition: vf_shear.c:45
FFDrawColor color
Definition: vf_shear.c:46
int(* filter_slice[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_shear.c:52
char * fillcolor_str
Definition: vf_shear.c:41
int nb_planes
Definition: vf_shear.c:43
Used for passing data between threads.
Definition: dsddec.c:67
AVFrame * out
Definition: af_adeclick.c:502
AVFrame * in
Definition: af_adenorm.c:223
FILE * out
Definition: movenc.c:54
AVFormatContext * ctx
Definition: movenc.c:48
static int process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Definition: vf_shear.c:279
AVFilter ff_vf_shear
Definition: vf_shear.c:319
static int query_formats(AVFilterContext *ctx)
Definition: vf_shear.c:88
#define NN(type, name)
Definition: vf_shear.c:123
static const AVOption shear_options[]
Definition: vf_shear.c:62
#define FLAGS
Definition: vf_shear.c:60
static const AVFilterPad inputs[]
Definition: vf_shear.c:301
#define BL(type, name)
Definition: vf_shear.c:169
static const AVFilterPad outputs[]
Definition: vf_shear.c:310
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_shear.c:228
AVFILTER_DEFINE_CLASS(shear)
static av_cold int init(AVFilterContext *ctx)
Definition: vf_shear.c:75
#define OFFSET(x)
Definition: vf_shear.c:59
static int config_output(AVFilterLink *outlink)
Definition: vf_shear.c:255
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:104