FFmpeg
vf_colorlevels.c
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1 /*
2  * Copyright (c) 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/imgutils.h"
22 #include "libavutil/opt.h"
23 #include "libavutil/pixdesc.h"
24 #include "avfilter.h"
25 #include "drawutils.h"
26 #include "formats.h"
27 #include "internal.h"
28 #include "video.h"
29 
30 #define R 0
31 #define G 1
32 #define B 2
33 #define A 3
34 
35 typedef struct Range {
36  double in_min, in_max;
37  double out_min, out_max;
38 } Range;
39 
40 typedef struct ColorLevelsContext {
41  const AVClass *class;
42  Range range[4];
43  int nb_comp;
44  int bpp;
45  int step;
46  uint8_t rgba_map[4];
47  int linesize;
48 } ColorLevelsContext;
49 
50 #define OFFSET(x) offsetof(ColorLevelsContext, x)
51 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
52 static const AVOption colorlevels_options[] = {
53  { "rimin", "set input red black point", OFFSET(range[R].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
54  { "gimin", "set input green black point", OFFSET(range[G].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
55  { "bimin", "set input blue black point", OFFSET(range[B].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
56  { "aimin", "set input alpha black point", OFFSET(range[A].in_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -1, 1, FLAGS },
57  { "rimax", "set input red white point", OFFSET(range[R].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
58  { "gimax", "set input green white point", OFFSET(range[G].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
59  { "bimax", "set input blue white point", OFFSET(range[B].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
60  { "aimax", "set input alpha white point", OFFSET(range[A].in_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -1, 1, FLAGS },
61  { "romin", "set output red black point", OFFSET(range[R].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
62  { "gomin", "set output green black point", OFFSET(range[G].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
63  { "bomin", "set output blue black point", OFFSET(range[B].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
64  { "aomin", "set output alpha black point", OFFSET(range[A].out_min), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS },
65  { "romax", "set output red white point", OFFSET(range[R].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
66  { "gomax", "set output green white point", OFFSET(range[G].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
67  { "bomax", "set output blue white point", OFFSET(range[B].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
68  { "aomax", "set output alpha white point", OFFSET(range[A].out_max), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 1, FLAGS },
69  { NULL }
70 };
71 
72 AVFILTER_DEFINE_CLASS(colorlevels);
73 
74 static int query_formats(AVFilterContext *ctx)
75 {
76  static const enum AVPixelFormat pix_fmts[] = {
77  AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
78  AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
79  AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
80  AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
81  AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
82  AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
83  AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
84  AV_PIX_FMT_NONE
85  };
86 
87  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
88  if (!fmts_list)
89  return AVERROR(ENOMEM);
90  return ff_set_common_formats(ctx, fmts_list);
91 }
92 
93 static int config_input(AVFilterLink *inlink)
94 {
95  AVFilterContext *ctx = inlink->dst;
96  ColorLevelsContext *s = ctx->priv;
97  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
98 
99  s->nb_comp = desc->nb_components;
100  s->bpp = desc->comp[0].depth >> 3;
101  s->step = (av_get_padded_bits_per_pixel(desc) >> 3) / s->bpp;
102  s->linesize = inlink->w * s->step;
103  ff_fill_rgba_map(s->rgba_map, inlink->format);
104 
105  return 0;
106 }
107 
108 struct thread_data {
109  const uint8_t *srcrow;
110  uint8_t *dstrow;
111  int dst_linesize;
112  int src_linesize;
113 
114  double coeff;
115  uint8_t offset;
116 
117  int h;
118 
119  int imin;
120  int omin;
121 };
122 
123 #define LOAD_COMMON\
124  ColorLevelsContext *s = ctx->priv;\
125  const struct thread_data *td = arg;\
126 \
127  int process_h = td->h;\
128  const int slice_start = (process_h * jobnr ) / nb_jobs;\
129  const int slice_end = (process_h * (jobnr+1)) / nb_jobs;\
130  int x, y;\
131  const uint8_t *srcrow = td->srcrow;\
132  uint8_t *dstrow = td->dstrow;\
133  const int step = s->step;\
134  const uint8_t offset = td->offset;\
135 \
136  int imin = td->imin;\
137  int omin = td->omin;\
138  double coeff = td->coeff;\
139 
140 static int colorlevel_slice_8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
141 {
142  LOAD_COMMON
143 
144  for (y = slice_start; y < slice_end; y++) {
145  const uint8_t *src = srcrow + y * td->src_linesize;
146  uint8_t *dst = dstrow + y * td->dst_linesize;
147 
148  for (x = 0; x < s->linesize; x += step)
149  dst[x + offset] = av_clip_uint8((src[x + offset] - imin) * coeff + omin);
150  }
151 
152  return 0;
153 }
154 
155 static int colorlevel_slice_16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
156 {
157  LOAD_COMMON
158 
159  for (y = slice_start; y < slice_end; y++) {
160  const uint16_t *src = (const uint16_t *)(srcrow + y * td->src_linesize);
161  uint16_t *dst = (uint16_t *)(dstrow + y * td->dst_linesize);
162 
163  for (x = 0; x < s->linesize; x += step)
164  dst[x + offset] = av_clip_uint16((src[x + offset] - imin) * coeff + omin);
165  }
166 
167  return 0;
168 }
169 
170 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
171 {
172  AVFilterContext *ctx = inlink->dst;
173  ColorLevelsContext *s = ctx->priv;
174  AVFilterLink *outlink = ctx->outputs[0];
175  const int step = s->step;
176  AVFrame *out;
177  int x, y, i;
178 
179  if (av_frame_is_writable(in)) {
180  out = in;
181  } else {
182  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
183  if (!out) {
184  av_frame_free(&in);
185  return AVERROR(ENOMEM);
186  }
187  av_frame_copy_props(out, in);
188  }
189 
190  switch (s->bpp) {
191  case 1:
192  for (i = 0; i < s->nb_comp; i++) {
193  Range *r = &s->range[i];
194  const uint8_t offset = s->rgba_map[i];
195  const uint8_t *srcrow = in->data[0];
196  uint8_t *dstrow = out->data[0];
197  int imin = lrint(r->in_min * UINT8_MAX);
198  int imax = lrint(r->in_max * UINT8_MAX);
199  int omin = lrint(r->out_min * UINT8_MAX);
200  int omax = lrint(r->out_max * UINT8_MAX);
201  double coeff;
202  struct thread_data td;
203 
204  if (imin < 0) {
205  imin = UINT8_MAX;
206  for (y = 0; y < inlink->h; y++) {
207  const uint8_t *src = srcrow;
208 
209  for (x = 0; x < s->linesize; x += step)
210  imin = FFMIN(imin, src[x + offset]);
211  srcrow += in->linesize[0];
212  }
213  }
214  if (imax < 0) {
215  srcrow = in->data[0];
216  imax = 0;
217  for (y = 0; y < inlink->h; y++) {
218  const uint8_t *src = srcrow;
219 
220  for (x = 0; x < s->linesize; x += step)
221  imax = FFMAX(imax, src[x + offset]);
222  srcrow += in->linesize[0];
223  }
224  }
225 
226  srcrow = in->data[0];
227  coeff = (omax - omin) / (double)(imax - imin);
228 
229  td.srcrow = srcrow;
230  td.dstrow = dstrow;
231  td.dst_linesize = out->linesize[0];
232  td.src_linesize = in->linesize[0];
233  td.coeff = coeff;
234  td.offset = offset;
235  td.h = inlink->h;
236  td.imin = imin;
237  td.omin = omin;
238 
239  ctx->internal->execute(ctx, colorlevel_slice_8, &td, NULL,
240  FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
241  }
242  break;
243  case 2:
244  for (i = 0; i < s->nb_comp; i++) {
245  Range *r = &s->range[i];
246  const uint8_t offset = s->rgba_map[i];
247  const uint8_t *srcrow = in->data[0];
248  uint8_t *dstrow = out->data[0];
249  int imin = lrint(r->in_min * UINT16_MAX);
250  int imax = lrint(r->in_max * UINT16_MAX);
251  int omin = lrint(r->out_min * UINT16_MAX);
252  int omax = lrint(r->out_max * UINT16_MAX);
253  double coeff;
254  struct thread_data td;
255 
256  if (imin < 0) {
257  imin = UINT16_MAX;
258  for (y = 0; y < inlink->h; y++) {
259  const uint16_t *src = (const uint16_t *)srcrow;
260 
261  for (x = 0; x < s->linesize; x += step)
262  imin = FFMIN(imin, src[x + offset]);
263  srcrow += in->linesize[0];
264  }
265  }
266  if (imax < 0) {
267  srcrow = in->data[0];
268  imax = 0;
269  for (y = 0; y < inlink->h; y++) {
270  const uint16_t *src = (const uint16_t *)srcrow;
271 
272  for (x = 0; x < s->linesize; x += step)
273  imax = FFMAX(imax, src[x + offset]);
274  srcrow += in->linesize[0];
275  }
276  }
277 
278  srcrow = in->data[0];
279  coeff = (omax - omin) / (double)(imax - imin);
280 
281  td.srcrow = srcrow;
282  td.dstrow = dstrow;
283  td.dst_linesize = out->linesize[0];
284  td.src_linesize = in->linesize[0];
285  td.coeff = coeff;
286  td.offset = offset;
287  td.h = inlink->h;
288  td.imin = imin;
289  td.omin = omin;
290 
291  ctx->internal->execute(ctx, colorlevel_slice_16, &td, NULL,
292  FFMIN(inlink->h, ff_filter_get_nb_threads(ctx)));
293  }
294  }
295 
296  if (in != out)
297  av_frame_free(&in);
298  return ff_filter_frame(outlink, out);
299 }
300 
301 static const AVFilterPad colorlevels_inputs[] = {
302  {
303  .name = "default",
304  .type = AVMEDIA_TYPE_VIDEO,
305  .filter_frame = filter_frame,
306  .config_props = config_input,
307  },
308  { NULL }
309 };
310 
311 static const AVFilterPad colorlevels_outputs[] = {
312  {
313  .name = "default",
314  .type = AVMEDIA_TYPE_VIDEO,
315  },
316  { NULL }
317 };
318 
319 AVFilter ff_vf_colorlevels = {
320  .name = "colorlevels",
321  .description = NULL_IF_CONFIG_SMALL("Adjust the color levels."),
322  .priv_size = sizeof(ColorLevelsContext),
323  .priv_class = &colorlevels_class,
324  .query_formats = query_formats,
325  .inputs = colorlevels_inputs,
326  .outputs = colorlevels_outputs,
327  .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
328 };
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:99
td
#define td
Definition: regdef.h:70
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
ColorLevelsContext::linesize
int linesize
Definition: vf_colorlevels.c:47
r
const char * r
Definition: vf_curves.c:114
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
ff_make_format_list
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
out
FILE * out
Definition: movenc.c:54
ff_filter_frame
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_colorlevels.c:170
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:202
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
pixdesc.h
colorlevels_inputs
static const AVFilterPad colorlevels_inputs[]
Definition: vf_colorlevels.c:301
step
trying all byte sequences megabyte in length and selecting the best looking sequence will yield cases to try But a word about which is also called distortion Distortion can be quantified by almost any quality measurement one chooses the sum of squared differences is used but more complex methods that consider psychovisual effects can be used as well It makes no difference in this discussion First step
Definition: rate_distortion.txt:58
AVOption
AVOption.
Definition: opt.h:246
thread_data::srcrow
const uint8_t * srcrow
Definition: vf_colorlevels.c:109
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
AVFilter::name
const char * name
Filter name.
Definition: avfilter.h:148
video.h
AVFormatContext::internal
AVFormatInternal * internal
An opaque field for libavformat internal usage.
Definition: avformat.h:1795
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_colorlevels.c:93
A
#define A
Definition: vf_colorlevels.c:33
AVFilterFormats
A list of supported formats for one end of a filter link.
Definition: formats.h:64
formats.h
src
#define src
Definition: vp8dsp.c:254
AVFilterPad
A filter pad used for either input or output.
Definition: internal.h:54
ColorLevelsContext
Definition: vf_colorlevels.c:40
lrint
#define lrint
Definition: tablegen.h:53
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:568
thread_data
Definition: vf_colorlevels.c:108
thread_data::src_linesize
int src_linesize
Definition: vf_colorlevels.c:112
s
#define s(width, name)
Definition: cbs_vp9.c:257
Range::in_min
double in_min
Definition: vf_colorlevels.c:36
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:225
slice_end
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2026
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
arg
const char * arg
Definition: jacosubdec.c:66
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_colorlevels.c:74
ColorLevelsContext::range
Range range[4]
Definition: vf_colorlevels.c:42
AV_PIX_FMT_RGBA64
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:377
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
AV_PIX_FMT_BGR48
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:378
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:654
thread_data::dst_linesize
int dst_linesize
Definition: vf_colorlevels.c:111
AV_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:240
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
Range
Definition: vf_colorbalance.c:38
G
#define G
Definition: vf_colorlevels.c:31
OFFSET
#define OFFSET(x)
Definition: vf_colorlevels.c:50
thread_data::h
int h
Definition: vf_colorlevels.c:117
desc
const char * desc
Definition: nvenc.c:68
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
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:188
ColorLevelsContext::rgba_map
uint8_t rgba_map[4]
Definition: vf_colorlevels.c:46
av_get_padded_bits_per_pixel
int av_get_padded_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel for the pixel format described by pixdesc, including any padding ...
Definition: pixdesc.c:2487
ff_vf_colorlevels
AVFilter ff_vf_colorlevels
Definition: vf_colorlevels.c:319
FFMAX
#define FFMAX(a, b)
Definition: common.h:94
colorlevel_slice_8
static int colorlevel_slice_8(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_colorlevels.c:140
AV_PIX_FMT_RGB48
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:373
av_frame_is_writable
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:594
AVFILTER_DEFINE_CLASS
AVFILTER_DEFINE_CLASS(colorlevels)
B
#define B
Definition: vf_colorlevels.c:32
FFMIN
#define FFMIN(a, b)
Definition: common.h:96
offset
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf offset
Definition: writing_filters.txt:86
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:238
LOAD_COMMON
#define LOAD_COMMON
Definition: vf_colorlevels.c:123
internal.h
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
in
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Definition: audio_convert.c:326
AV_PIX_FMT_BGRA64
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:382
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
ColorLevelsContext::bpp
int bpp
Definition: vf_colorlevels.c:44
ff_filter_get_nb_threads
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:802
uint8_t
uint8_t
Definition: audio_convert.c:194
AVFilterPad::name
const char * name
Pad name.
Definition: internal.h:60
ColorLevelsContext::nb_comp
int nb_comp
Definition: vf_colorlevels.c:43
Range::out_min
double out_min
Definition: vf_colorlevels.c:37
AVFilter
Filter definition.
Definition: avfilter.h:144
thread_data::dstrow
uint8_t * dstrow
Definition: vf_colorlevels.c:110
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:239
colorlevels_outputs
static const AVFilterPad colorlevels_outputs[]
Definition: vf_colorlevels.c:311
colorlevels_options
static const AVOption colorlevels_options[]
Definition: vf_colorlevels.c:52
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
avfilter.h
ColorLevelsContext::step
int step
Definition: vf_colorlevels.c:45
AVFilterContext
An instance of a filter.
Definition: avfilter.h:338
FLAGS
#define FLAGS
Definition: vf_colorlevels.c:51
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:116
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:81
colorlevel_slice_16
static int colorlevel_slice_16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_colorlevels.c:155
ff_fill_rgba_map
int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
Definition: drawutils.c:35
thread_data::coeff
double coeff
Definition: vf_colorlevels.c:114
imgutils.h
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:565
AV_PIX_FMT_0RGB
@ AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:237
coeff
static const double coeff[2][5]
Definition: vf_owdenoise.c:72
thread_data::omin
int omin
Definition: vf_colorlevels.c:120
drawutils.h
Range::in_max
double in_max
Definition: vf_colorlevels.c:36
thread_data::imin
int imin
Definition: vf_colorlevels.c:119
Range::out_max
double out_max
Definition: vf_colorlevels.c:37
thread_data::offset
uint8_t offset
Definition: vf_colorlevels.c:115
R
#define R
Definition: vf_colorlevels.c:30
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