FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
vf_histogram.c
Go to the documentation of this file.
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  const uint8_t *bg_color;
39  const uint8_t *fg_color;
46  int planewidth[4];
47  int planeheight[4];
49 
50 #define OFFSET(x) offsetof(HistogramContext, x)
51 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
52 
53 static const AVOption histogram_options[] = {
54  { "level_height", "set level height", OFFSET(level_height), AV_OPT_TYPE_INT, {.i64=200}, 50, 2048, FLAGS},
55  { "scale_height", "set scale height", OFFSET(scale_height), AV_OPT_TYPE_INT, {.i64=12}, 0, 40, FLAGS},
56  { "display_mode", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display_mode"},
57  { "parade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "display_mode" },
58  { "overlay", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "display_mode" },
59  { "levels_mode", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"},
60  { "linear", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "levels_mode" },
61  { "logarithmic", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "levels_mode" },
62  { "components", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS},
63  { NULL }
64 };
65 
66 AVFILTER_DEFINE_CLASS(histogram);
67 
68 static const enum AVPixelFormat levels_in_pix_fmts[] = {
84 };
85 
86 static const enum AVPixelFormat levels_out_yuv8_pix_fmts[] = {
89 };
90 
91 static const enum AVPixelFormat levels_out_yuv9_pix_fmts[] = {
94 };
95 
99 };
100 
104 };
105 
109 };
110 
114 };
115 
119 };
120 
124 };
125 
127 {
128  AVFilterFormats *avff;
129  const AVPixFmtDescriptor *desc;
130  const enum AVPixelFormat *out_pix_fmts;
131  int rgb, i, bits;
132  int ret;
133 
134  if (!ctx->inputs[0]->in_formats ||
135  !ctx->inputs[0]->in_formats->nb_formats) {
136  return AVERROR(EAGAIN);
137  }
138 
139  if (!ctx->inputs[0]->out_formats)
141  return ret;
142  avff = ctx->inputs[0]->in_formats;
143  desc = av_pix_fmt_desc_get(avff->formats[0]);
144  rgb = desc->flags & AV_PIX_FMT_FLAG_RGB;
145  bits = desc->comp[0].depth;
146  for (i = 1; i < avff->nb_formats; i++) {
147  desc = av_pix_fmt_desc_get(avff->formats[i]);
148  if ((rgb != (desc->flags & AV_PIX_FMT_FLAG_RGB)) ||
149  (bits != desc->comp[0].depth))
150  return AVERROR(EAGAIN);
151  }
152 
153  if (rgb && bits == 8)
154  out_pix_fmts = levels_out_rgb8_pix_fmts;
155  else if (rgb && bits == 9)
156  out_pix_fmts = levels_out_rgb9_pix_fmts;
157  else if (rgb && bits == 10)
158  out_pix_fmts = levels_out_rgb10_pix_fmts;
159  else if (rgb && bits == 12)
160  out_pix_fmts = levels_out_rgb12_pix_fmts;
161  else if (bits == 8)
162  out_pix_fmts = levels_out_yuv8_pix_fmts;
163  else if (bits == 9)
164  out_pix_fmts = levels_out_yuv9_pix_fmts;
165  else if (bits == 10)
166  out_pix_fmts = levels_out_yuv10_pix_fmts;
167  else if (bits == 12)
168  out_pix_fmts = levels_out_yuv12_pix_fmts;
169  else
170  return AVERROR(EAGAIN);
171  if ((ret = ff_formats_ref(ff_make_format_list(out_pix_fmts), &ctx->outputs[0]->in_formats)) < 0)
172  return ret;
173 
174  return 0;
175 }
176 
177 static const uint8_t black_yuva_color[4] = { 0, 127, 127, 255 };
178 static const uint8_t black_gbrp_color[4] = { 0, 0, 0, 255 };
179 static const uint8_t white_yuva_color[4] = { 255, 127, 127, 255 };
180 static const uint8_t white_gbrp_color[4] = { 255, 255, 255, 255 };
181 
182 static int config_input(AVFilterLink *inlink)
183 {
184  HistogramContext *h = inlink->dst->priv;
185 
186  h->desc = av_pix_fmt_desc_get(inlink->format);
187  h->ncomp = h->desc->nb_components;
188  h->histogram_size = 1 << h->desc->comp[0].depth;
189  h->mult = h->histogram_size / 256;
190 
191  switch (inlink->format) {
192  case AV_PIX_FMT_GBRP12:
193  case AV_PIX_FMT_GBRP10:
194  case AV_PIX_FMT_GBRP9:
195  case AV_PIX_FMT_GBRAP:
196  case AV_PIX_FMT_GBRP:
199  break;
200  default:
203  }
204 
205  h->planeheight[1] = h->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, h->desc->log2_chroma_h);
206  h->planeheight[0] = h->planeheight[3] = inlink->h;
207  h->planewidth[1] = h->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, h->desc->log2_chroma_w);
208  h->planewidth[0] = h->planewidth[3] = inlink->w;
209 
210  return 0;
211 }
212 
213 static int config_output(AVFilterLink *outlink)
214 {
215  AVFilterContext *ctx = outlink->src;
216  HistogramContext *h = ctx->priv;
217  int ncomp = 0, i;
218 
219  for (i = 0; i < h->ncomp; i++) {
220  if ((1 << i) & h->components)
221  ncomp++;
222  }
223  outlink->w = h->histogram_size;
224  outlink->h = (h->level_height + h->scale_height) * FFMAX(ncomp * h->display_mode, 1);
225 
226  h->odesc = av_pix_fmt_desc_get(outlink->format);
227  outlink->sample_aspect_ratio = (AVRational){1,1};
228 
229  return 0;
230 }
231 
232 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
233 {
234  HistogramContext *h = inlink->dst->priv;
235  AVFilterContext *ctx = inlink->dst;
236  AVFilterLink *outlink = ctx->outputs[0];
237  AVFrame *out;
238  int i, j, k, l, m;
239 
240  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
241  if (!out) {
242  av_frame_free(&in);
243  return AVERROR(ENOMEM);
244  }
245 
246  out->pts = in->pts;
247 
248  for (k = 0; k < 4 && out->data[k]; k++) {
249  const int is_chroma = (k == 1 || k == 2);
250  const int dst_h = AV_CEIL_RSHIFT(outlink->h, (is_chroma ? h->odesc->log2_chroma_h : 0));
251  const int dst_w = AV_CEIL_RSHIFT(outlink->w, (is_chroma ? h->odesc->log2_chroma_w : 0));
252 
253  if (h->histogram_size <= 256) {
254  for (i = 0; i < dst_h ; i++)
255  memset(out->data[h->odesc->comp[k].plane] +
256  i * out->linesize[h->odesc->comp[k].plane],
257  h->bg_color[k], dst_w);
258  } else {
259  const int mult = h->mult;
260 
261  for (i = 0; i < dst_h ; i++)
262  for (j = 0; j < dst_w; j++)
263  AV_WN16(out->data[h->odesc->comp[k].plane] +
264  i * out->linesize[h->odesc->comp[k].plane] + j * 2,
265  h->bg_color[k] * mult);
266  }
267  }
268 
269  for (m = 0, k = 0; k < h->ncomp; k++) {
270  const int p = h->desc->comp[k].plane;
271  const int height = h->planeheight[p];
272  const int width = h->planewidth[p];
273  double max_hval_log;
274  unsigned max_hval = 0;
275  int start;
276 
277  if (!((1 << k) & h->components))
278  continue;
279  start = m++ * (h->level_height + h->scale_height) * h->display_mode;
280 
281  if (h->histogram_size <= 256) {
282  for (i = 0; i < height; i++) {
283  const uint8_t *src = in->data[p] + i * in->linesize[p];
284  for (j = 0; j < width; j++)
285  h->histogram[src[j]]++;
286  }
287  } else {
288  for (i = 0; i < height; i++) {
289  const uint16_t *src = (const uint16_t *)(in->data[p] + i * in->linesize[p]);
290  for (j = 0; j < width; j++)
291  h->histogram[src[j]]++;
292  }
293  }
294 
295  for (i = 0; i < h->histogram_size; i++)
296  max_hval = FFMAX(max_hval, h->histogram[i]);
297  max_hval_log = log2(max_hval + 1);
298 
299  for (i = 0; i < outlink->w; i++) {
300  int col_height;
301 
302  if (h->levels_mode)
303  col_height = lrint(h->level_height * (1. - (log2(h->histogram[i] + 1) / max_hval_log)));
304  else
305  col_height = h->level_height - (h->histogram[i] * (int64_t)h->level_height + max_hval - 1) / max_hval;
306 
307  if (h->histogram_size <= 256) {
308  for (j = h->level_height - 1; j >= col_height; j--) {
309  if (h->display_mode) {
310  for (l = 0; l < h->ncomp; l++)
311  out->data[l][(j + start) * out->linesize[l] + i] = h->fg_color[l];
312  } else {
313  out->data[p][(j + start) * out->linesize[p] + i] = 255;
314  }
315  }
316  for (j = h->level_height + h->scale_height - 1; j >= h->level_height; j--)
317  out->data[p][(j + start) * out->linesize[p] + i] = i;
318  } else {
319  const int mult = h->mult;
320 
321  for (j = h->level_height - 1; j >= col_height; j--) {
322  if (h->display_mode) {
323  for (l = 0; l < h->ncomp; l++)
324  AV_WN16(out->data[l] + (j + start) * out->linesize[l] + i * 2, h->fg_color[l] * mult);
325  } else {
326  AV_WN16(out->data[p] + (j + start) * out->linesize[p] + i * 2, 255 * mult);
327  }
328  }
329  for (j = h->level_height + h->scale_height - 1; j >= h->level_height; j--)
330  AV_WN16(out->data[p] + (j + start) * out->linesize[p] + i * 2, i);
331  }
332  }
333 
334  memset(h->histogram, 0, h->histogram_size * sizeof(unsigned));
335  }
336 
337  av_frame_free(&in);
338  return ff_filter_frame(outlink, out);
339 }
340 
341 static const AVFilterPad inputs[] = {
342  {
343  .name = "default",
344  .type = AVMEDIA_TYPE_VIDEO,
345  .filter_frame = filter_frame,
346  .config_props = config_input,
347  },
348  { NULL }
349 };
350 
351 static const AVFilterPad outputs[] = {
352  {
353  .name = "default",
354  .type = AVMEDIA_TYPE_VIDEO,
355  .config_props = config_output,
356  },
357  { NULL }
358 };
359 
361  .name = "histogram",
362  .description = NULL_IF_CONFIG_SMALL("Compute and draw a histogram."),
363  .priv_size = sizeof(HistogramContext),
365  .inputs = inputs,
366  .outputs = outputs,
367  .priv_class = &histogram_class,
368 };
static enum AVPixelFormat levels_out_yuv8_pix_fmts[]
Definition: vf_histogram.c:86
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:368
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2193
This structure describes decoded (raw) audio or video data.
Definition: frame.h:180
AVOption.
Definition: opt.h:245
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:370
AVFormatContext * ctx
Definition: movenc-test.c:48
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:371
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.
unsigned histogram[256 *256]
Definition: vf_histogram.c:34
static enum AVPixelFormat levels_out_rgb8_pix_fmts[]
Definition: vf_histogram.c:106
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:354
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:342
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:121
const char * name
Pad name.
Definition: internal.h:59
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:313
static const uint8_t black_gbrp_color[4]
Definition: vf_histogram.c:178
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1180
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 uint8_t * bg_color
Definition: vf_histogram.c:38
const AVPixFmtDescriptor * odesc
Definition: vf_histogram.c:44
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:264
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:367
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:353
static const AVFilterPad inputs[]
Definition: vf_histogram.c:341
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:182
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:343
static const AVFilterPad outputs[]
Definition: vf_histogram.c:351
unsigned m
Definition: audioconvert.c:187
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:180
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:153
#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:320
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:358
simple assert() macros that are a bit more flexible than ISO C assert().
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:341
#define OFFSET(x)
Definition: vf_histogram.c:50
#define FFMAX(a, b)
Definition: common.h:94
static enum AVPixelFormat levels_out_rgb10_pix_fmts[]
Definition: vf_histogram.c:116
static enum AVPixelFormat levels_in_pix_fmts[]
Definition: vf_histogram.c:68
AVFilter ff_vf_histogram
Definition: vf_histogram.c:360
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:336
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
int ff_formats_ref(AVFilterFormats *f, AVFilterFormats **ref)
Add *ref as a new reference to formats.
Definition: formats.c:440
const uint8_t * fg_color
Definition: vf_histogram.c:39
unsigned nb_formats
number of formats
Definition: formats.h:65
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:372
#define src
Definition: vp9dsp.c:530
static const AVOption histogram_options[]
Definition: vf_histogram.c:53
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:337
FILE * out
Definition: movenc-test.c:54
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:211
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:44
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:213
static int16_t mult(Float11 *f1, Float11 *f2)
Definition: g726.c:55
BYTE int const BYTE int int int height
Definition: avisynth_c.h:676
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:338
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:142
rational number numerator/denominator
Definition: rational.h:43
static const uint8_t white_yuva_color[4]
Definition: vf_histogram.c:179
const char * name
Filter name.
Definition: avfilter.h:146
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:344
static enum AVPixelFormat levels_out_yuv12_pix_fmts[]
Definition: vf_histogram.c:101
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:335
misc parsing utilities
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:317
static enum AVPixelFormat levels_out_rgb9_pix_fmts[]
Definition: vf_histogram.c:111
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:355
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:339
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:345
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:194
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:369
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:51
static int query_formats(AVFilterContext *ctx)
Definition: vf_histogram.c:126
static const uint8_t black_yuva_color[4]
Definition: vf_histogram.c:177
static enum AVPixelFormat levels_out_yuv9_pix_fmts[]
Definition: vf_histogram.c:91
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_histogram.c:232
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:305
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:100
void INT64 start
Definition: avisynth_c.h:553
#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:96
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
static int width