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vf_histogram.c
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1 /*
2  * Copyright (c) 2012-2013 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/avassert.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/parseutils.h"
24 #include "libavutil/pixdesc.h"
25 #include "libavutil/imgutils.h"
26 #include "libavutil/intreadwrite.h"
27 #include "avfilter.h"
28 #include "formats.h"
29 #include "internal.h"
30 #include "video.h"
31 
32 typedef struct HistogramContext {
33  const AVClass *class; ///< AVClass context for log and options purpose
34  unsigned histogram[256*256];
36  int mult;
37  int ncomp;
38  int dncomp;
47  float fgopacity;
48  float bgopacity;
49  int planewidth[4];
50  int planeheight[4];
52 
53 #define OFFSET(x) offsetof(HistogramContext, x)
54 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
55 
56 static const AVOption histogram_options[] = {
57  { "level_height", "set level height", OFFSET(level_height), AV_OPT_TYPE_INT, {.i64=200}, 50, 2048, FLAGS},
58  { "scale_height", "set scale height", OFFSET(scale_height), AV_OPT_TYPE_INT, {.i64=12}, 0, 40, FLAGS},
59  { "display_mode", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display_mode"},
60  { "d", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display_mode"},
61  { "parade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "display_mode" },
62  { "overlay", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "display_mode" },
63  { "levels_mode", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"},
64  { "m", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"},
65  { "linear", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "levels_mode" },
66  { "logarithmic", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "levels_mode" },
67  { "components", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS},
68  { "c", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS},
69  { "fgopacity", "set foreground opacity", OFFSET(fgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.7}, 0, 1, FLAGS},
70  { "f", "set foreground opacity", OFFSET(fgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.7}, 0, 1, FLAGS},
71  { "bgopacity", "set background opacity", OFFSET(bgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS},
72  { "b", "set background opacity", OFFSET(bgopacity), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS},
73  { NULL }
74 };
75 
76 AVFILTER_DEFINE_CLASS(histogram);
77 
78 static const enum AVPixelFormat levels_in_pix_fmts[] = {
94 };
95 
96 static const enum AVPixelFormat levels_out_yuv8_pix_fmts[] = {
99 };
100 
104 };
105 
109 };
110 
114 };
115 
119 };
120 
124 };
125 
129 };
130 
134 };
135 
137 {
138  AVFilterFormats *avff;
139  const AVPixFmtDescriptor *desc;
140  const enum AVPixelFormat *out_pix_fmts;
141  int rgb, i, bits;
142  int ret;
143 
144  if (!ctx->inputs[0]->in_formats ||
145  !ctx->inputs[0]->in_formats->nb_formats) {
146  return AVERROR(EAGAIN);
147  }
148 
149  if (!ctx->inputs[0]->out_formats)
151  return ret;
152  avff = ctx->inputs[0]->in_formats;
153  desc = av_pix_fmt_desc_get(avff->formats[0]);
154  rgb = desc->flags & AV_PIX_FMT_FLAG_RGB;
155  bits = desc->comp[0].depth;
156  for (i = 1; i < avff->nb_formats; i++) {
157  desc = av_pix_fmt_desc_get(avff->formats[i]);
158  if ((rgb != (desc->flags & AV_PIX_FMT_FLAG_RGB)) ||
159  (bits != desc->comp[0].depth))
160  return AVERROR(EAGAIN);
161  }
162 
163  if (rgb && bits == 8)
164  out_pix_fmts = levels_out_rgb8_pix_fmts;
165  else if (rgb && bits == 9)
166  out_pix_fmts = levels_out_rgb9_pix_fmts;
167  else if (rgb && bits == 10)
168  out_pix_fmts = levels_out_rgb10_pix_fmts;
169  else if (rgb && bits == 12)
170  out_pix_fmts = levels_out_rgb12_pix_fmts;
171  else if (bits == 8)
172  out_pix_fmts = levels_out_yuv8_pix_fmts;
173  else if (bits == 9)
174  out_pix_fmts = levels_out_yuv9_pix_fmts;
175  else if (bits == 10)
176  out_pix_fmts = levels_out_yuv10_pix_fmts;
177  else if (bits == 12)
178  out_pix_fmts = levels_out_yuv12_pix_fmts;
179  else
180  return AVERROR(EAGAIN);
181  if ((ret = ff_formats_ref(ff_make_format_list(out_pix_fmts), &ctx->outputs[0]->in_formats)) < 0)
182  return ret;
183 
184  return 0;
185 }
186 
187 static const uint8_t black_yuva_color[4] = { 0, 127, 127, 255 };
188 static const uint8_t black_gbrp_color[4] = { 0, 0, 0, 255 };
189 static const uint8_t white_yuva_color[4] = { 255, 127, 127, 255 };
190 static const uint8_t white_gbrp_color[4] = { 255, 255, 255, 255 };
191 
192 static int config_input(AVFilterLink *inlink)
193 {
194  HistogramContext *h = inlink->dst->priv;
195 
196  h->desc = av_pix_fmt_desc_get(inlink->format);
197  h->ncomp = h->desc->nb_components;
198  h->histogram_size = 1 << h->desc->comp[0].depth;
199  h->mult = h->histogram_size / 256;
200 
201  switch (inlink->format) {
202  case AV_PIX_FMT_GBRP12:
203  case AV_PIX_FMT_GBRP10:
204  case AV_PIX_FMT_GBRP9:
205  case AV_PIX_FMT_GBRAP:
206  case AV_PIX_FMT_GBRP:
207  memcpy(h->bg_color, black_gbrp_color, 4);
208  memcpy(h->fg_color, white_gbrp_color, 4);
209  break;
210  default:
211  memcpy(h->bg_color, black_yuva_color, 4);
212  memcpy(h->fg_color, white_yuva_color, 4);
213  }
214 
215  h->fg_color[3] = h->fgopacity * 255;
216  h->bg_color[3] = h->bgopacity * 255;
217 
218  h->planeheight[1] = h->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, h->desc->log2_chroma_h);
219  h->planeheight[0] = h->planeheight[3] = inlink->h;
220  h->planewidth[1] = h->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, h->desc->log2_chroma_w);
221  h->planewidth[0] = h->planewidth[3] = inlink->w;
222 
223  return 0;
224 }
225 
226 static int config_output(AVFilterLink *outlink)
227 {
228  AVFilterContext *ctx = outlink->src;
229  HistogramContext *h = ctx->priv;
230  int ncomp = 0, i;
231 
232  for (i = 0; i < h->ncomp; i++) {
233  if ((1 << i) & h->components)
234  ncomp++;
235  }
236  outlink->w = h->histogram_size;
237  outlink->h = (h->level_height + h->scale_height) * FFMAX(ncomp * h->display_mode, 1);
238 
239  h->odesc = av_pix_fmt_desc_get(outlink->format);
240  h->dncomp = h->odesc->nb_components;
241  outlink->sample_aspect_ratio = (AVRational){1,1};
242 
243  return 0;
244 }
245 
246 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
247 {
248  HistogramContext *h = inlink->dst->priv;
249  AVFilterContext *ctx = inlink->dst;
250  AVFilterLink *outlink = ctx->outputs[0];
251  AVFrame *out;
252  int i, j, k, l, m;
253 
254  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
255  if (!out) {
256  av_frame_free(&in);
257  return AVERROR(ENOMEM);
258  }
259 
260  out->pts = in->pts;
261 
262  for (k = 0; k < 4 && out->data[k]; k++) {
263  const int is_chroma = (k == 1 || k == 2);
264  const int dst_h = AV_CEIL_RSHIFT(outlink->h, (is_chroma ? h->odesc->log2_chroma_h : 0));
265  const int dst_w = AV_CEIL_RSHIFT(outlink->w, (is_chroma ? h->odesc->log2_chroma_w : 0));
266 
267  if (h->histogram_size <= 256) {
268  for (i = 0; i < dst_h ; i++)
269  memset(out->data[h->odesc->comp[k].plane] +
270  i * out->linesize[h->odesc->comp[k].plane],
271  h->bg_color[k], dst_w);
272  } else {
273  const int mult = h->mult;
274 
275  for (i = 0; i < dst_h ; i++)
276  for (j = 0; j < dst_w; j++)
277  AV_WN16(out->data[h->odesc->comp[k].plane] +
278  i * out->linesize[h->odesc->comp[k].plane] + j * 2,
279  h->bg_color[k] * mult);
280  }
281  }
282 
283  for (m = 0, k = 0; k < h->ncomp; k++) {
284  const int p = h->desc->comp[k].plane;
285  const int height = h->planeheight[p];
286  const int width = h->planewidth[p];
287  double max_hval_log;
288  unsigned max_hval = 0;
289  int start;
290 
291  if (!((1 << k) & h->components))
292  continue;
293  start = m++ * (h->level_height + h->scale_height) * h->display_mode;
294 
295  if (h->histogram_size <= 256) {
296  for (i = 0; i < height; i++) {
297  const uint8_t *src = in->data[p] + i * in->linesize[p];
298  for (j = 0; j < width; j++)
299  h->histogram[src[j]]++;
300  }
301  } else {
302  for (i = 0; i < height; i++) {
303  const uint16_t *src = (const uint16_t *)(in->data[p] + i * in->linesize[p]);
304  for (j = 0; j < width; j++)
305  h->histogram[src[j]]++;
306  }
307  }
308 
309  for (i = 0; i < h->histogram_size; i++)
310  max_hval = FFMAX(max_hval, h->histogram[i]);
311  max_hval_log = log2(max_hval + 1);
312 
313  for (i = 0; i < outlink->w; i++) {
314  int col_height;
315 
316  if (h->levels_mode)
317  col_height = lrint(h->level_height * (1. - (log2(h->histogram[i] + 1) / max_hval_log)));
318  else
319  col_height = h->level_height - (h->histogram[i] * (int64_t)h->level_height + max_hval - 1) / max_hval;
320 
321  if (h->histogram_size <= 256) {
322  for (j = h->level_height - 1; j >= col_height; j--) {
323  if (h->display_mode) {
324  for (l = 0; l < h->dncomp; l++)
325  out->data[l][(j + start) * out->linesize[l] + i] = h->fg_color[l];
326  } else {
327  out->data[p][(j + start) * out->linesize[p] + i] = 255;
328  }
329  }
330  for (j = h->level_height + h->scale_height - 1; j >= h->level_height; j--)
331  out->data[p][(j + start) * out->linesize[p] + i] = i;
332  } else {
333  const int mult = h->mult;
334 
335  for (j = h->level_height - 1; j >= col_height; j--) {
336  if (h->display_mode) {
337  for (l = 0; l < h->dncomp; l++)
338  AV_WN16(out->data[l] + (j + start) * out->linesize[l] + i * 2, h->fg_color[l] * mult);
339  } else {
340  AV_WN16(out->data[p] + (j + start) * out->linesize[p] + i * 2, 255 * mult);
341  }
342  }
343  for (j = h->level_height + h->scale_height - 1; j >= h->level_height; j--)
344  AV_WN16(out->data[p] + (j + start) * out->linesize[p] + i * 2, i);
345  }
346  }
347 
348  memset(h->histogram, 0, h->histogram_size * sizeof(unsigned));
349  }
350 
351  av_frame_free(&in);
352  return ff_filter_frame(outlink, out);
353 }
354 
355 static const AVFilterPad inputs[] = {
356  {
357  .name = "default",
358  .type = AVMEDIA_TYPE_VIDEO,
359  .filter_frame = filter_frame,
360  .config_props = config_input,
361  },
362  { NULL }
363 };
364 
365 static const AVFilterPad outputs[] = {
366  {
367  .name = "default",
368  .type = AVMEDIA_TYPE_VIDEO,
369  .config_props = config_output,
370  },
371  { NULL }
372 };
373 
375  .name = "histogram",
376  .description = NULL_IF_CONFIG_SMALL("Compute and draw a histogram."),
377  .priv_size = sizeof(HistogramContext),
379  .inputs = inputs,
380  .outputs = outputs,
381  .priv_class = &histogram_class,
382 };
static enum AVPixelFormat levels_out_yuv8_pix_fmts[]
Definition: vf_histogram.c:96
int plane
Which of the 4 planes contains the component.
Definition: pixdesc.h:35
#define NULL
Definition: coverity.c:32
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:374
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2263
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
AVOption.
Definition: opt.h:245
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:376
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:377
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
misc image utilities
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:101
unsigned histogram[256 *256]
Definition: vf_histogram.c:34
static enum AVPixelFormat levels_out_rgb8_pix_fmts[]
Definition: vf_histogram.c:116
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:359
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:347
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
#define log2(x)
Definition: libm.h:404
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
static enum AVPixelFormat levels_out_rgb12_pix_fmts[]
Definition: vf_histogram.c:131
const char * name
Pad name.
Definition: internal.h:59
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:315
static const uint8_t black_gbrp_color[4]
Definition: vf_histogram.c:188
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1189
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:102
uint8_t bits
Definition: crc.c:296
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
AVOptions.
const AVPixFmtDescriptor * odesc
Definition: vf_histogram.c:45
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:268
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:373
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:358
#define height
static const AVFilterPad inputs[]
Definition: vf_histogram.c:355
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
static int config_input(AVFilterLink *inlink)
Definition: vf_histogram.c:192
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:348
static const AVFilterPad outputs[]
Definition: vf_histogram.c:365
A filter pad used for either input or output.
Definition: internal.h:53
static const uint8_t white_gbrp_color[4]
Definition: vf_histogram.c:190
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:187
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
#define AV_PIX_FMT_FLAG_RGB
The pixel format contains RGB-like data (as opposed to YUV/grayscale).
Definition: pixdesc.h:148
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:154
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
void * priv
private data for use by the filter
Definition: avfilter.h:322
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:364
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:346
#define OFFSET(x)
Definition: vf_histogram.c:53
#define FFMAX(a, b)
Definition: common.h:94
static enum AVPixelFormat levels_out_rgb10_pix_fmts[]
Definition: vf_histogram.c:126
static enum AVPixelFormat levels_in_pix_fmts[]
Definition: vf_histogram.c:78
uint8_t bg_color[4]
Definition: vf_histogram.c:39
AVFilter ff_vf_histogram
Definition: vf_histogram.c:374
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:341
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
#define width
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:440
AVFormatContext * ctx
Definition: movenc.c:48
unsigned nb_formats
number of formats
Definition: formats.h:65
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:378
#define src
Definition: vp9dsp.c:530
static const AVOption histogram_options[]
Definition: vf_histogram.c:56
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:342
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:188
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
const AVPixFmtDescriptor * desc
Definition: vf_histogram.c:45
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
static int config_output(AVFilterLink *outlink)
Definition: vf_histogram.c:226
static int16_t mult(Float11 *f1, Float11 *f2)
Definition: g726.c:55
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:343
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
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
static const uint8_t white_yuva_color[4]
Definition: vf_histogram.c:189
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:349
static enum AVPixelFormat levels_out_yuv12_pix_fmts[]
Definition: vf_histogram.c:111
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:340
misc parsing utilities
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
uint8_t fg_color[4]
Definition: vf_histogram.c:40
static enum AVPixelFormat levels_out_rgb9_pix_fmts[]
Definition: vf_histogram.c:121
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:360
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:344
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:350
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:198
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
AVFILTER_DEFINE_CLASS(histogram)
if(ret< 0)
Definition: vf_mcdeint.c:282
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:228
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:375
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
static enum AVPixelFormat out_pix_fmts[]
Definition: vf_ciescope.c:130
#define FLAGS
Definition: vf_histogram.c:54
static int query_formats(AVFilterContext *ctx)
Definition: vf_histogram.c:136
static const uint8_t black_yuva_color[4]
Definition: vf_histogram.c:187
static enum AVPixelFormat levels_out_yuv9_pix_fmts[]
Definition: vf_histogram.c:101
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_histogram.c:246
A list of supported formats for one end of a filter link.
Definition: formats.h:64
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:271
#define lrint
Definition: tablegen.h:53
An instance of a filter.
Definition: avfilter.h:307
FILE * out
Definition: movenc.c:54
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
void INT64 start
Definition: avisynth_c.h:690
#define AV_WN16(p, v)
Definition: intreadwrite.h:372
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
static enum AVPixelFormat levels_out_yuv10_pix_fmts[]
Definition: vf_histogram.c:106
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
int * formats
list of media formats
Definition: formats.h:66