FFmpeg: libavfilter/vf_transpose.c Source File

FFmpeg
vf_transpose.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2010 Stefano Sabatini
3  * Copyright (c) 2008 Vitor Sessak
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (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 GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * transposition filter
25  * Based on MPlayer libmpcodecs/vf_rotate.c.
26  */
27 
28 #include <stdio.h>
29 
30 #include "libavutil/avassert.h"
31 #include "libavutil/imgutils.h"
32 #include "libavutil/internal.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/pixdesc.h"
36 
37 #include "avfilter.h"
38 #include "formats.h"
39 #include "internal.h"
40 #include "video.h"
41 #include "transpose.h"
42 
43  typedef struct TransContext {
44   const AVClass *class;
45   int hsub, vsub;
46   int planes;
47   int pixsteps[4];
48 
49   int passthrough; ///< PassthroughType, landscape passthrough mode enabled
50   int dir; ///< TransposeDir
51 
52   TransVtable vtables[4];
53 } TransContext;
54 
55  static int query_formats(AVFilterContext *ctx)
56 {
57  AVFilterFormats *pix_fmts = NULL;
58  const AVPixFmtDescriptor *desc;
59  int fmt, ret;
60 
61  for (fmt = 0; desc = av_pix_fmt_desc_get(fmt); fmt++) {
62  if (!(desc->flags & AV_PIX_FMT_FLAG_PAL ||
63  desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
64  desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ||
65  desc->log2_chroma_w != desc->log2_chroma_h) &&
66  (ret = ff_add_format(&pix_fmts, fmt)) < 0)
67  return ret;
68  }
69 
70 
71  return ff_set_common_formats(ctx, pix_fmts);
72 }
73 
74  static inline void transpose_block_8_c(uint8_t *src, ptrdiff_t src_linesize,
75  uint8_t *dst, ptrdiff_t dst_linesize,
76  int w, int h)
77 {
78  int x, y;
79  for (y = 0; y < h; y++, dst += dst_linesize, src++)
80  for (x = 0; x < w; x++)
81  dst[x] = src[x*src_linesize];
82 }
83 
84  static void transpose_8x8_8_c(uint8_t *src, ptrdiff_t src_linesize,
85  uint8_t *dst, ptrdiff_t dst_linesize)
86 {
87  transpose_block_8_c(src, src_linesize, dst, dst_linesize, 8, 8);
88 }
89 
90  static inline void transpose_block_16_c(uint8_t *src, ptrdiff_t src_linesize,
91  uint8_t *dst, ptrdiff_t dst_linesize,
92  int w, int h)
93 {
94  int x, y;
95  for (y = 0; y < h; y++, dst += dst_linesize, src += 2)
96  for (x = 0; x < w; x++)
97  *((uint16_t *)(dst + 2*x)) = *((uint16_t *)(src + x*src_linesize));
98 }
99 
100  static void transpose_8x8_16_c(uint8_t *src, ptrdiff_t src_linesize,
101  uint8_t *dst, ptrdiff_t dst_linesize)
102 {
103  transpose_block_16_c(src, src_linesize, dst, dst_linesize, 8, 8);
104 }
105 
106  static inline void transpose_block_24_c(uint8_t *src, ptrdiff_t src_linesize,
107  uint8_t *dst, ptrdiff_t dst_linesize,
108  int w, int h)
109 {
110  int x, y;
111  for (y = 0; y < h; y++, dst += dst_linesize) {
112  for (x = 0; x < w; x++) {
113  int32_t v = AV_RB24(src + x*src_linesize + y*3);
114  AV_WB24(dst + 3*x, v);
115  }
116  }
117 }
118 
119  static void transpose_8x8_24_c(uint8_t *src, ptrdiff_t src_linesize,
120  uint8_t *dst, ptrdiff_t dst_linesize)
121 {
122  transpose_block_24_c(src, src_linesize, dst, dst_linesize, 8, 8);
123 }
124 
125  static inline void transpose_block_32_c(uint8_t *src, ptrdiff_t src_linesize,
126  uint8_t *dst, ptrdiff_t dst_linesize,
127  int w, int h)
128 {
129  int x, y;
130  for (y = 0; y < h; y++, dst += dst_linesize, src += 4) {
131  for (x = 0; x < w; x++)
132  *((uint32_t *)(dst + 4*x)) = *((uint32_t *)(src + x*src_linesize));
133  }
134 }
135 
136  static void transpose_8x8_32_c(uint8_t *src, ptrdiff_t src_linesize,
137  uint8_t *dst, ptrdiff_t dst_linesize)
138 {
139  transpose_block_32_c(src, src_linesize, dst, dst_linesize, 8, 8);
140 }
141 
142  static inline void transpose_block_48_c(uint8_t *src, ptrdiff_t src_linesize,
143  uint8_t *dst, ptrdiff_t dst_linesize,
144  int w, int h)
145 {
146  int x, y;
147  for (y = 0; y < h; y++, dst += dst_linesize, src += 6) {
148  for (x = 0; x < w; x++) {
149  int64_t v = AV_RB48(src + x*src_linesize);
150  AV_WB48(dst + 6*x, v);
151  }
152  }
153 }
154 
155  static void transpose_8x8_48_c(uint8_t *src, ptrdiff_t src_linesize,
156  uint8_t *dst, ptrdiff_t dst_linesize)
157 {
158  transpose_block_48_c(src, src_linesize, dst, dst_linesize, 8, 8);
159 }
160 
161  static inline void transpose_block_64_c(uint8_t *src, ptrdiff_t src_linesize,
162  uint8_t *dst, ptrdiff_t dst_linesize,
163  int w, int h)
164 {
165  int x, y;
166  for (y = 0; y < h; y++, dst += dst_linesize, src += 8)
167  for (x = 0; x < w; x++)
168  *((uint64_t *)(dst + 8*x)) = *((uint64_t *)(src + x*src_linesize));
169 }
170 
171  static void transpose_8x8_64_c(uint8_t *src, ptrdiff_t src_linesize,
172  uint8_t *dst, ptrdiff_t dst_linesize)
173 {
174  transpose_block_64_c(src, src_linesize, dst, dst_linesize, 8, 8);
175 }
176 
177  static int config_props_output(AVFilterLink *outlink)
178 {
179  AVFilterContext *ctx = outlink->src;
180  TransContext *s = ctx->priv;
181  AVFilterLink *inlink = ctx->inputs[0];
182  const AVPixFmtDescriptor *desc_out = av_pix_fmt_desc_get(outlink->format);
183  const AVPixFmtDescriptor *desc_in = av_pix_fmt_desc_get(inlink->format);
184 
185  if (s->dir&4) {
186  av_log(ctx, AV_LOG_WARNING,
187  "dir values greater than 3 are deprecated, use the passthrough option instead\n");
188  s->dir &= 3;
189  s->passthrough = TRANSPOSE_PT_TYPE_LANDSCAPE;
190  }
191 
192  if ((inlink->w >= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
193  (inlink->w <= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
194  av_log(ctx, AV_LOG_VERBOSE,
195  "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
196  inlink->w, inlink->h, inlink->w, inlink->h);
197  return 0;
198  } else {
199  s->passthrough = TRANSPOSE_PT_TYPE_NONE;
200  }
201 
202  s->hsub = desc_in->log2_chroma_w;
203  s->vsub = desc_in->log2_chroma_h;
204  s->planes = av_pix_fmt_count_planes(outlink->format);
205 
206  av_assert0(desc_in->nb_components == desc_out->nb_components);
207 
208 
209  av_image_fill_max_pixsteps(s->pixsteps, NULL, desc_out);
210 
211  outlink->w = inlink->h;
212  outlink->h = inlink->w;
213 
214  if (inlink->sample_aspect_ratio.num)
215  outlink->sample_aspect_ratio = av_div_q((AVRational) { 1, 1 },
216  inlink->sample_aspect_ratio);
217  else
218  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
219 
220  for (int i = 0; i < 4; i++) {
221  TransVtable *v = &s->vtables[i];
222  switch (s->pixsteps[i]) {
223  case 1: v->transpose_block = transpose_block_8_c;
224  v->transpose_8x8 = transpose_8x8_8_c; break;
225  case 2: v->transpose_block = transpose_block_16_c;
226  v->transpose_8x8 = transpose_8x8_16_c; break;
227  case 3: v->transpose_block = transpose_block_24_c;
228  v->transpose_8x8 = transpose_8x8_24_c; break;
229  case 4: v->transpose_block = transpose_block_32_c;
230  v->transpose_8x8 = transpose_8x8_32_c; break;
231  case 6: v->transpose_block = transpose_block_48_c;
232  v->transpose_8x8 = transpose_8x8_48_c; break;
233  case 8: v->transpose_block = transpose_block_64_c;
234  v->transpose_8x8 = transpose_8x8_64_c; break;
235  }
236  }
237 
238 #if ARCH_X86
239  for (int i = 0; i < 4; i++) {
240  TransVtable *v = &s->vtables[i];
241 
242  ff_transpose_init_x86(v, s->pixsteps[i]);
243  }
244 #endif
245 
246  av_log(ctx, AV_LOG_VERBOSE,
247  "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
248  inlink->w, inlink->h, s->dir, outlink->w, outlink->h,
249  s->dir == 1 || s->dir == 3 ? "clockwise" : "counterclockwise",
250  s->dir == 0 || s->dir == 3);
251  return 0;
252 }
253 
254  static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
255 {
256  TransContext *s = inlink->dst->priv;
257 
258  return s->passthrough ?
259  ff_null_get_video_buffer (inlink, w, h) :
260  ff_default_get_video_buffer(inlink, w, h);
261 }
262 
263 typedef struct ThreadData {
264  AVFrame *in, *out;
265 } ThreadData;
266 
267  static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr,
268  int nb_jobs)
269 {
270  TransContext *s = ctx->priv;
271  ThreadData *td = arg;
272  AVFrame *out = td->out;
273  AVFrame *in = td->in;
274  int plane;
275 
276  for (plane = 0; plane < s->planes; plane++) {
277  int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
278  int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
279  int pixstep = s->pixsteps[plane];
280  int inh = AV_CEIL_RSHIFT(in->height, vsub);
281  int outw = AV_CEIL_RSHIFT(out->width, hsub);
282  int outh = AV_CEIL_RSHIFT(out->height, vsub);
283  int start = (outh * jobnr ) / nb_jobs;
284  int end = (outh * (jobnr+1)) / nb_jobs;
285  uint8_t *dst, *src;
286  int dstlinesize, srclinesize;
287  int x, y;
288  TransVtable *v = &s->vtables[plane];
289 
290  dstlinesize = out->linesize[plane];
291  dst = out->data[plane] + start * dstlinesize;
292  src = in->data[plane];
293  srclinesize = in->linesize[plane];
294 
295  if (s->dir & 1) {
296  src += in->linesize[plane] * (inh - 1);
297  srclinesize *= -1;
298  }
299 
300  if (s->dir & 2) {
301  dst = out->data[plane] + dstlinesize * (outh - start - 1);
302  dstlinesize *= -1;
303  }
304 
305  for (y = start; y < end - 7; y += 8) {
306  for (x = 0; x < outw - 7; x += 8) {
307  v->transpose_8x8(src + x * srclinesize + y * pixstep,
308  srclinesize,
309  dst + (y - start) * dstlinesize + x * pixstep,
310  dstlinesize);
311  }
312  if (outw - x > 0 && end - y > 0)
313  v->transpose_block(src + x * srclinesize + y * pixstep,
314  srclinesize,
315  dst + (y - start) * dstlinesize + x * pixstep,
316  dstlinesize, outw - x, end - y);
317  }
318 
319  if (end - y > 0)
320  v->transpose_block(src + 0 * srclinesize + y * pixstep,
321  srclinesize,
322  dst + (y - start) * dstlinesize + 0 * pixstep,
323  dstlinesize, outw, end - y);
324  }
325 
326  return 0;
327 }
328 
329  static int filter_frame(AVFilterLink *inlink, AVFrame *in)
330 {
331  int err = 0;
332  AVFilterContext *ctx = inlink->dst;
333  TransContext *s = ctx->priv;
334  AVFilterLink *outlink = ctx->outputs[0];
335  ThreadData td;
336  AVFrame *out;
337 
338  if (s->passthrough)
339  return ff_filter_frame(outlink, in);
340 
341  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
342  if (!out) {
343  err = AVERROR(ENOMEM);
344  goto fail;
345  }
346 
347  err = av_frame_copy_props(out, in);
348  if (err < 0)
349  goto fail;
350 
351  if (in->sample_aspect_ratio.num == 0) {
352  out->sample_aspect_ratio = in->sample_aspect_ratio;
353  } else {
354  out->sample_aspect_ratio.num = in->sample_aspect_ratio.den;
355  out->sample_aspect_ratio.den = in->sample_aspect_ratio.num;
356  }
357 
358  td.in = in, td.out = out;
359  ff_filter_execute(ctx, filter_slice, &td, NULL,
360  FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
361  av_frame_free(&in);
362  return ff_filter_frame(outlink, out);
363 
364 fail:
365  av_frame_free(&in);
366  av_frame_free(&out);
367  return err;
368 }
369 
370  #define OFFSET(x) offsetof(TransContext, x)
371  #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
372 
373  static const AVOption transpose_options[] = {
374  { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 7, FLAGS, .unit = "dir" },
375  { "cclock_flip", "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
376  { "clock", "rotate clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" },
377  { "cclock", "rotate counter-clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" },
378  { "clock_flip", "rotate clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
379 
380  { "passthrough", "do not apply transposition if the input matches the specified geometry",
381  OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS, .unit = "passthrough" },
382  { "none", "always apply transposition", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
383  { "portrait", "preserve portrait geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
384  { "landscape", "preserve landscape geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
385 
386  { NULL }
387 };
388 
389 AVFILTER_DEFINE_CLASS(transpose);
390 
391  static const AVFilterPad avfilter_vf_transpose_inputs[] = {
392  {
393  .name = "default",
394  .type = AVMEDIA_TYPE_VIDEO,
395  .get_buffer.video = get_video_buffer,
396  .filter_frame = filter_frame,
397  },
398 };
399 
400  static const AVFilterPad avfilter_vf_transpose_outputs[] = {
401  {
402  .name = "default",
403  .config_props = config_props_output,
404  .type = AVMEDIA_TYPE_VIDEO,
405  },
406 };
407 
408  const AVFilter ff_vf_transpose = {
409  .name = "transpose",
410  .description = NULL_IF_CONFIG_SMALL("Transpose input video."),
411  .priv_size = sizeof(TransContext),
412  .priv_class = &transpose_class,
413  FILTER_INPUTS(avfilter_vf_transpose_inputs),
414  FILTER_OUTPUTS(avfilter_vf_transpose_outputs),
415  FILTER_QUERY_FUNC(query_formats),
416  .flags = AVFILTER_FLAG_SLICE_THREADS,
417 };
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:112
transpose_8x8_24_c
static void transpose_8x8_24_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:119
transpose_8x8_16_c
static void transpose_8x8_16_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:100
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:186
td
#define td
Definition: regdef.h:70
TransVtable::transpose_block
void(* transpose_block)(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: transpose.h:43
AVERROR
Filter the word "frame" indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
opt.h
AV_RB48
#define AV_RB48(x)
Definition: intreadwrite.h:470
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(transpose)
out
FILE * out
Definition: movenc.c:54
avfilter_vf_transpose_outputs
static const AVFilterPad avfilter_vf_transpose_outputs[]
Definition: vf_transpose.c:400
TransContext::planes
int planes
Definition: vf_transpose.c:46
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1018
TransContext
Definition: vf_transpose.c:43
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2962
av_div_q
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
Definition: rational.c:88
int64_t
long long int64_t
Definition: coverity.c:34
inlink
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
Definition: filter_design.txt:212
av_frame_free
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:130
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:344
pixdesc.h
w
uint8_t w
Definition: llviddspenc.c:38
transpose_8x8_32_c
static void transpose_8x8_32_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:136
AVOption
AVOption.
Definition: opt.h:346
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:159
transpose_block_32_c
static void transpose_block_32_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:125
TransContext::pixsteps
int pixsteps[4]
Definition: vf_transpose.c:47
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:196
TransContext::dir
int dir
TransposeDir.
Definition: vf_transpose.c:50
TRANSPOSE_CLOCK_FLIP
@ TRANSPOSE_CLOCK_FLIP
Definition: transpose.h:34
ff_transpose_init_x86
void ff_transpose_init_x86(TransVtable *v, int pixstep)
Definition: vf_transpose_init.c:37
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:170
ThreadData::out
AVFrame * out
Definition: af_adeclick.c:526
video.h
ThreadData::in
AVFrame * in
Definition: af_adecorrelate.c:153
transpose_block_24_c
static void transpose_block_24_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:106
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:365
hsub
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:73
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
transpose_block_48_c
static void transpose_block_48_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:142
TRANSPOSE_CCLOCK
@ TRANSPOSE_CCLOCK
Definition: transpose.h:33
ff_default_get_video_buffer
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:107
av_pix_fmt_count_planes
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:3002
fail
#define fail()
Definition: checkasm.h:179
AV_PIX_FMT_FLAG_HWACCEL
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
Definition: pixdesc.h:128
TransContext::vsub
int vsub
Definition: vf_transpose.c:45
AVRational::num
int num
Numerator.
Definition: rational.h:59
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:33
transpose_8x8_48_c
static void transpose_8x8_48_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:155
avassert.h
TransVtable
Definition: transpose.h:40
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:867
transpose_block_16_c
static void transpose_block_16_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:90
intreadwrite.h
s
#define s(width, name)
Definition: cbs_vp9.c:198
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_transpose.c:55
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:40
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:304
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
arg
const char * arg
Definition: jacosubdec.c:67
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:66
NULL
#define NULL
Definition: coverity.c:32
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:679
AVPixFmtDescriptor::nb_components
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:71
AVRational
Rational number (pair of numerator and denominator).
Definition: rational.h:58
transpose_block_64_c
static void transpose_block_64_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:161
ff_add_format
int ff_add_format(AVFilterFormats **avff, int64_t fmt)
Add fmt to the list of media formats contained in *avff.
Definition: formats.c:504
FLAGS
#define FLAGS
Definition: vf_transpose.c:371
TransContext::vtables
TransVtable vtables[4]
Definition: vf_transpose.c:52
transpose_options
static const AVOption transpose_options[]
Definition: vf_transpose.c:373
TRANSPOSE_PT_TYPE_PORTRAIT
@ TRANSPOSE_PT_TYPE_PORTRAIT
Definition: transpose.h:27
transpose_8x8_64_c
static void transpose_8x8_64_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:171
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:106
TRANSPOSE_PT_TYPE_NONE
@ TRANSPOSE_PT_TYPE_NONE
Definition: transpose.h:25
transpose_block_8_c
static void transpose_block_8_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:74
AV_PIX_FMT_FLAG_BITSTREAM
#define AV_PIX_FMT_FLAG_BITSTREAM
All values of a component are bit-wise packed end to end.
Definition: pixdesc.h:124
AV_WB24
#define AV_WB24(p, d)
Definition: intreadwrite.h:448
ff_null_get_video_buffer
AVFrame * ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:44
internal.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
internal.h
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:825
ThreadData
Used for passing data between threads.
Definition: dsddec.c:69
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
TRANSPOSE_CLOCK
@ TRANSPOSE_CLOCK
Definition: transpose.h:32
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:39
AV_WB48
#define AV_WB48(p, darg)
Definition: intreadwrite.h:479
filter_slice
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_transpose.c:267
TransContext::hsub
int hsub
Definition: vf_transpose.c:45
AVFilter
Filter definition.
Definition: avfilter.h:166
ret
ret
Definition: filter_design.txt:187
AVFrame::sample_aspect_ratio
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:451
get_video_buffer
static AVFrame * get_video_buffer(AVFilterLink *inlink, int w, int h)
Definition: vf_transpose.c:254
AVFrame::height
int height
Definition: frame.h:416
TRANSPOSE_CCLOCK_FLIP
@ TRANSPOSE_CCLOCK_FLIP
Definition: transpose.h:31
AVRational::den
int den
Denominator.
Definition: rational.h:60
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:235
avfilter.h
OFFSET
#define OFFSET(x)
Definition: vf_transpose.c:370
avfilter_vf_transpose_inputs
static const AVFilterPad avfilter_vf_transpose_inputs[]
Definition: vf_transpose.c:391
transpose.h
av_image_fill_max_pixsteps
void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4], const AVPixFmtDescriptor *pixdesc)
Compute the max pixel step for each plane of an image with a format described by pixdesc.
Definition: imgutils.c:35
AVFilterContext
An instance of a filter.
Definition: avfilter.h:407
TRANSPOSE_PT_TYPE_LANDSCAPE
@ TRANSPOSE_PT_TYPE_LANDSCAPE
Definition: transpose.h:26
ff_vf_transpose
const AVFilter ff_vf_transpose
Definition: vf_transpose.c: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:117
desc
const char * desc
Definition: libsvtav1.c:75
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
int32_t
int32_t
Definition: audioconvert.c:56
imgutils.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:389
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
config_props_output
static int config_props_output(AVFilterLink *outlink)
Definition: vf_transpose.c:177
h
h
Definition: vp9dsp_template.c:2038
transpose
#define transpose(x)
TransContext::passthrough
int passthrough
PassthroughType, landscape passthrough mode enabled.
Definition: vf_transpose.c:49
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:134
AV_RB24
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_RB24
Definition: bytestream.h:97
AV_PIX_FMT_FLAG_PAL
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
Definition: pixdesc.h:120
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:244
TransVtable::transpose_8x8
void(* transpose_8x8)(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: transpose.h:41
transpose_8x8_8_c
static void transpose_8x8_8_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:84
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_transpose.c:329
Generated on Thu Sep 26 2024 23:15:41 for FFmpeg by   doxygen 1.8.17

AltStyle によって変換されたページ (->オリジナル) /