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vf_transpose.c
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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 
42 typedef enum {
47 
53 };
54 
55 typedef struct TransVtable {
56  void (*transpose_8x8)(uint8_t *src, ptrdiff_t src_linesize,
57  uint8_t *dst, ptrdiff_t dst_linesize);
58  void (*transpose_block)(uint8_t *src, ptrdiff_t src_linesize,
59  uint8_t *dst, ptrdiff_t dst_linesize,
60  int w, int h);
61 } TransVtable;
62 
63 typedef struct TransContext {
64  const AVClass *class;
65  int hsub, vsub;
66  int planes;
67  int pixsteps[4];
68 
69  int passthrough; ///< PassthroughType, landscape passthrough mode enabled
70  int dir; ///< TransposeDir
71 
73 } TransContext;
74 
76 {
78  int fmt, ret;
79 
80  for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
82  if (!(desc->flags & AV_PIX_FMT_FLAG_PAL ||
85  desc->log2_chroma_w != desc->log2_chroma_h) &&
86  (ret = ff_add_format(&pix_fmts, fmt)) < 0)
87  return ret;
88  }
89 
90 
91  return ff_set_common_formats(ctx, pix_fmts);
92 }
93 
94 static inline void transpose_block_8_c(uint8_t *src, ptrdiff_t src_linesize,
95  uint8_t *dst, ptrdiff_t dst_linesize,
96  int w, int h)
97 {
98  int x, y;
99  for (y = 0; y < h; y++, dst += dst_linesize, src++)
100  for (x = 0; x < w; x++)
101  dst[x] = src[x*src_linesize];
102 }
103 
104 static void transpose_8x8_8_c(uint8_t *src, ptrdiff_t src_linesize,
105  uint8_t *dst, ptrdiff_t dst_linesize)
106 {
107  transpose_block_8_c(src, src_linesize, dst, dst_linesize, 8, 8);
108 }
109 
110 static inline void transpose_block_16_c(uint8_t *src, ptrdiff_t src_linesize,
111  uint8_t *dst, ptrdiff_t dst_linesize,
112  int w, int h)
113 {
114  int x, y;
115  for (y = 0; y < h; y++, dst += dst_linesize, src += 2)
116  for (x = 0; x < w; x++)
117  *((uint16_t *)(dst + 2*x)) = *((uint16_t *)(src + x*src_linesize));
118 }
119 
120 static void transpose_8x8_16_c(uint8_t *src, ptrdiff_t src_linesize,
121  uint8_t *dst, ptrdiff_t dst_linesize)
122 {
123  transpose_block_16_c(src, src_linesize, dst, dst_linesize, 8, 8);
124 }
125 
126 static inline void transpose_block_24_c(uint8_t *src, ptrdiff_t src_linesize,
127  uint8_t *dst, ptrdiff_t dst_linesize,
128  int w, int h)
129 {
130  int x, y;
131  for (y = 0; y < h; y++, dst += dst_linesize) {
132  for (x = 0; x < w; x++) {
133  int32_t v = AV_RB24(src + x*src_linesize + y*3);
134  AV_WB24(dst + 3*x, v);
135  }
136  }
137 }
138 
139 static void transpose_8x8_24_c(uint8_t *src, ptrdiff_t src_linesize,
140  uint8_t *dst, ptrdiff_t dst_linesize)
141 {
142  transpose_block_24_c(src, src_linesize, dst, dst_linesize, 8, 8);
143 }
144 
145 static inline void transpose_block_32_c(uint8_t *src, ptrdiff_t src_linesize,
146  uint8_t *dst, ptrdiff_t dst_linesize,
147  int w, int h)
148 {
149  int x, y;
150  for (y = 0; y < h; y++, dst += dst_linesize, src += 4) {
151  for (x = 0; x < w; x++)
152  *((uint32_t *)(dst + 4*x)) = *((uint32_t *)(src + x*src_linesize));
153  }
154 }
155 
156 static void transpose_8x8_32_c(uint8_t *src, ptrdiff_t src_linesize,
157  uint8_t *dst, ptrdiff_t dst_linesize)
158 {
159  transpose_block_32_c(src, src_linesize, dst, dst_linesize, 8, 8);
160 }
161 
162 static inline void transpose_block_48_c(uint8_t *src, ptrdiff_t src_linesize,
163  uint8_t *dst, ptrdiff_t dst_linesize,
164  int w, int h)
165 {
166  int x, y;
167  for (y = 0; y < h; y++, dst += dst_linesize, src += 6) {
168  for (x = 0; x < w; x++) {
169  int64_t v = AV_RB48(src + x*src_linesize);
170  AV_WB48(dst + 6*x, v);
171  }
172  }
173 }
174 
175 static void transpose_8x8_48_c(uint8_t *src, ptrdiff_t src_linesize,
176  uint8_t *dst, ptrdiff_t dst_linesize)
177 {
178  transpose_block_48_c(src, src_linesize, dst, dst_linesize, 8, 8);
179 }
180 
181 static inline void transpose_block_64_c(uint8_t *src, ptrdiff_t src_linesize,
182  uint8_t *dst, ptrdiff_t dst_linesize,
183  int w, int h)
184 {
185  int x, y;
186  for (y = 0; y < h; y++, dst += dst_linesize, src += 8)
187  for (x = 0; x < w; x++)
188  *((uint64_t *)(dst + 8*x)) = *((uint64_t *)(src + x*src_linesize));
189 }
190 
191 static void transpose_8x8_64_c(uint8_t *src, ptrdiff_t src_linesize,
192  uint8_t *dst, ptrdiff_t dst_linesize)
193 {
194  transpose_block_64_c(src, src_linesize, dst, dst_linesize, 8, 8);
195 }
196 
197 static int config_props_output(AVFilterLink *outlink)
198 {
199  AVFilterContext *ctx = outlink->src;
200  TransContext *s = ctx->priv;
201  AVFilterLink *inlink = ctx->inputs[0];
202  const AVPixFmtDescriptor *desc_out = av_pix_fmt_desc_get(outlink->format);
203  const AVPixFmtDescriptor *desc_in = av_pix_fmt_desc_get(inlink->format);
204 
205  if (s->dir&4) {
206  av_log(ctx, AV_LOG_WARNING,
207  "dir values greater than 3 are deprecated, use the passthrough option instead\n");
208  s->dir &= 3;
210  }
211 
212  if ((inlink->w >= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
213  (inlink->w <= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
214  av_log(ctx, AV_LOG_VERBOSE,
215  "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
216  inlink->w, inlink->h, inlink->w, inlink->h);
217  return 0;
218  } else {
220  }
221 
222  s->hsub = desc_in->log2_chroma_w;
223  s->vsub = desc_in->log2_chroma_h;
224  s->planes = av_pix_fmt_count_planes(outlink->format);
225 
226  av_assert0(desc_in->nb_components == desc_out->nb_components);
227 
228 
230 
231  outlink->w = inlink->h;
232  outlink->h = inlink->w;
233 
234  if (inlink->sample_aspect_ratio.num)
235  outlink->sample_aspect_ratio = av_div_q((AVRational) { 1, 1 },
236  inlink->sample_aspect_ratio);
237  else
238  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
239 
240  for (int i = 0; i < 4; i++) {
241  TransVtable *v = &s->vtables[i];
242  switch (s->pixsteps[i]) {
244  v->transpose_8x8 = transpose_8x8_8_c; break;
246  v->transpose_8x8 = transpose_8x8_16_c; break;
248  v->transpose_8x8 = transpose_8x8_24_c; break;
250  v->transpose_8x8 = transpose_8x8_32_c; break;
252  v->transpose_8x8 = transpose_8x8_48_c; break;
254  v->transpose_8x8 = transpose_8x8_64_c; break;
255  }
256  }
257 
258  av_log(ctx, AV_LOG_VERBOSE,
259  "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
260  inlink->w, inlink->h, s->dir, outlink->w, outlink->h,
261  s->dir == 1 || s->dir == 3 ? "clockwise" : "counterclockwise",
262  s->dir == 0 || s->dir == 3);
263  return 0;
264 }
265 
266 static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
267 {
268  TransContext *s = inlink->dst->priv;
269 
270  return s->passthrough ?
271  ff_null_get_video_buffer (inlink, w, h) :
272  ff_default_get_video_buffer(inlink, w, h);
273 }
274 
275 typedef struct ThreadData {
276  AVFrame *in, *out;
277 } ThreadData;
278 
279 static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr,
280  int nb_jobs)
281 {
282  TransContext *s = ctx->priv;
283  ThreadData *td = arg;
284  AVFrame *out = td->out;
285  AVFrame *in = td->in;
286  int plane;
287 
288  for (plane = 0; plane < s->planes; plane++) {
289  int hsub = plane == 1 || plane == 2 ? s->hsub : 0;
290  int vsub = plane == 1 || plane == 2 ? s->vsub : 0;
291  int pixstep = s->pixsteps[plane];
292  int inh = AV_CEIL_RSHIFT(in->height, vsub);
293  int outw = AV_CEIL_RSHIFT(out->width, hsub);
294  int outh = AV_CEIL_RSHIFT(out->height, vsub);
295  int start = (outh * jobnr ) / nb_jobs;
296  int end = (outh * (jobnr+1)) / nb_jobs;
297  uint8_t *dst, *src;
298  int dstlinesize, srclinesize;
299  int x, y;
300  TransVtable *v = &s->vtables[plane];
301 
302  dstlinesize = out->linesize[plane];
303  dst = out->data[plane] + start * dstlinesize;
304  src = in->data[plane];
305  srclinesize = in->linesize[plane];
306 
307  if (s->dir & 1) {
308  src += in->linesize[plane] * (inh - 1);
309  srclinesize *= -1;
310  }
311 
312  if (s->dir & 2) {
313  dst = out->data[plane] + dstlinesize * (outh - start - 1);
314  dstlinesize *= -1;
315  }
316 
317  for (y = start; y < end - 7; y += 8) {
318  for (x = 0; x < outw - 7; x += 8) {
319  v->transpose_8x8(src + x * srclinesize + y * pixstep,
320  srclinesize,
321  dst + (y - start) * dstlinesize + x * pixstep,
322  dstlinesize);
323  }
324  if (outw - x > 0 && end - y > 0)
325  v->transpose_block(src + x * srclinesize + y * pixstep,
326  srclinesize,
327  dst + (y - start) * dstlinesize + x * pixstep,
328  dstlinesize, outw - x, end - y);
329  }
330 
331  if (end - y > 0)
332  v->transpose_block(src + 0 * srclinesize + y * pixstep,
333  srclinesize,
334  dst + (y - start) * dstlinesize + 0 * pixstep,
335  dstlinesize, outw, end - y);
336  }
337 
338  return 0;
339 }
340 
341 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
342 {
343  AVFilterContext *ctx = inlink->dst;
344  TransContext *s = ctx->priv;
345  AVFilterLink *outlink = ctx->outputs[0];
346  ThreadData td;
347  AVFrame *out;
348 
349  if (s->passthrough)
350  return ff_filter_frame(outlink, in);
351 
352  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
353  if (!out) {
354  av_frame_free(&in);
355  return AVERROR(ENOMEM);
356  }
357  av_frame_copy_props(out, in);
358 
359  if (in->sample_aspect_ratio.num == 0) {
361  } else {
364  }
365 
366  td.in = in, td.out = out;
367  ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
368  av_frame_free(&in);
369  return ff_filter_frame(outlink, out);
370 }
371 
372 #define OFFSET(x) offsetof(TransContext, x)
373 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
374 
375 static const AVOption transpose_options[] = {
376  { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 7, FLAGS, "dir" },
377  { "cclock_flip", "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
378  { "clock", "rotate clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" },
379  { "cclock", "rotate counter-clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" },
380  { "clock_flip", "rotate clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
381 
382  { "passthrough", "do not apply transposition if the input matches the specified geometry",
383  OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS, "passthrough" },
384  { "none", "always apply transposition", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
385  { "portrait", "preserve portrait geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
386  { "landscape", "preserve landscape geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
387 
388  { NULL }
389 };
390 
392 
394  {
395  .name = "default",
396  .type = AVMEDIA_TYPE_VIDEO,
397  .get_video_buffer = get_video_buffer,
398  .filter_frame = filter_frame,
399  },
400  { NULL }
401 };
402 
404  {
405  .name = "default",
406  .config_props = config_props_output,
407  .type = AVMEDIA_TYPE_VIDEO,
408  },
409  { NULL }
410 };
411 
413  .name = "transpose",
414  .description = NULL_IF_CONFIG_SMALL("Transpose input video."),
415  .priv_size = sizeof(TransContext),
416  .priv_class = &transpose_class,
418  .inputs = avfilter_vf_transpose_inputs,
419  .outputs = avfilter_vf_transpose_outputs,
421 };
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
Definition: pixdesc.h:132
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
void(* transpose_8x8)(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:56
#define AV_RB48(x)
Definition: intreadwrite.h:472
AVFILTER_DEFINE_CLASS(transpose)
AVFrame * out
Definition: af_adeclick.c:485
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:126
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
Definition: rational.c:88
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2384
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
AVOption.
Definition: opt.h:246
static void transpose_8x8_24_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:139
static void transpose_8x8_32_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:156
const char * fmt
Definition: avisynth_c.h:769
static void transpose_8x8_16_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:120
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2424
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:65
TransposeDir
Definition: vf_transpose.c:48
int num
Numerator.
Definition: rational.h:59
AVFrame * ff_null_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:39
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:99
#define src
Definition: vp8dsp.c:254
AVFilter ff_vf_transpose
Definition: vf_transpose.c:412
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
static const AVFilterPad avfilter_vf_transpose_outputs[]
Definition: vf_transpose.c:403
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
const char * name
Pad name.
Definition: internal.h:60
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
AVFrame * in
Definition: af_aiir.c:33
void(* transpose_block)(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize, int w, int h)
Definition: vf_transpose.c:58
uint8_t
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
#define AV_WB48(p, darg)
Definition: intreadwrite.h:481
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:162
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define flags(name, subs,...)
Definition: cbs_h2645.c:263
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
int width
Definition: frame.h:276
int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
A helper for query_formats() which sets all links to the same list of formats.
Definition: formats.c:568
#define td
Definition: regdef.h:70
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#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:202
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
const char * arg
Definition: jacosubdec.c:66
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
Definition: pixdesc.h:140
simple assert() macros that are a bit more flexible than ISO C assert().
int ff_add_format(AVFilterFormats **avff, int64_t fmt)
Add fmt to the list of media formats contained in *avff.
Definition: formats.c:337
int pixsteps[4]
Definition: vf_transpose.c:67
static void transpose_8x8_48_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:175
common internal API header
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
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:110
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
#define FFMIN(a, b)
Definition: common.h:96
uint8_t w
Definition: llviddspenc.c:38
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
int32_t
AVFormatContext * ctx
Definition: movenc.c:48
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:181
#define AV_WB24(p, d)
Definition: intreadwrite.h:450
static int query_formats(AVFilterContext *ctx)
Definition: vf_transpose.c:75
#define s(width, name)
Definition: cbs_vp9.c:257
#define FLAGS
Definition: vf_transpose.c:373
PassthroughType
Definition: vf_transpose.c:42
static const AVOption transpose_options[]
Definition: vf_transpose.c:375
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static void transpose_8x8_64_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:191
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
TransVtable vtables[4]
Definition: vf_transpose.c:72
int passthrough
PassthroughType, landscape passthrough mode enabled.
Definition: vf_transpose.c:69
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:94
static AVFrame * get_video_buffer(AVFilterLink *inlink, int w, int h)
Definition: vf_transpose.c:266
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:87
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
int dir
TransposeDir.
Definition: vf_transpose.c:70
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:306
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
Rational number (pair of numerator and denominator).
Definition: rational.h:58
const char * name
Filter name.
Definition: avfilter.h:148
GLsizei GLboolean transpose
Definition: opengl_enc.c:109
#define AV_PIX_FMT_FLAG_BITSTREAM
All values of a component are bit-wise packed end to end.
Definition: pixdesc.h:136
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
AVFrame * ff_default_get_video_buffer(AVFilterLink *link, int w, int h)
Definition: video.c:44
int den
Denominator.
Definition: rational.h:60
avfilter_execute_func * execute
Definition: internal.h:155
#define OFFSET(x)
Definition: vf_transpose.c:372
static const AVFilterPad avfilter_vf_transpose_inputs[]
Definition: vf_transpose.c:393
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:338
static void transpose_8x8_8_c(uint8_t *src, ptrdiff_t src_linesize, uint8_t *dst, ptrdiff_t dst_linesize)
Definition: vf_transpose.c:104
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_transpose.c:279
int height
Definition: frame.h:276
FILE * out
Definition: movenc.c:54
void INT64 start
Definition: avisynth_c.h:690
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_transpose.c:341
internal API functions
static int config_props_output(AVFilterLink *outlink)
Definition: vf_transpose.c:197
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:652
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
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:145