FFmpeg  4.2.3
vf_unsharp.c
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1 /*
2  * Original copyright (c) 2002 Remi Guyomarch <rguyom@pobox.com>
3  * Port copyright (c) 2010 Daniel G. Taylor <dan@programmer-art.org>
4  * Relicensed to the LGPL with permission from Remi Guyomarch.
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * blur / sharpen filter, ported to FFmpeg from MPlayer
26  * libmpcodecs/unsharp.c.
27  *
28  * This code is based on:
29  *
30  * An Efficient algorithm for Gaussian blur using finite-state machines
31  * Frederick M. Waltz and John W. V. Miller
32  *
33  * SPIE Conf. on Machine Vision Systems for Inspection and Metrology VII
34  * Originally published Boston, Nov 98
35  *
36  * http://www.engin.umd.umich.edu/~jwvm/ece581/21_GBlur.pdf
37  */
38 
39 #include "avfilter.h"
40 #include "formats.h"
41 #include "internal.h"
42 #include "video.h"
43 #include "libavutil/common.h"
44 #include "libavutil/imgutils.h"
45 #include "libavutil/mem.h"
46 #include "libavutil/opt.h"
47 #include "libavutil/pixdesc.h"
48 #include "unsharp.h"
49 
50 typedef struct TheadData {
52  uint8_t *dst;
53  const uint8_t *src;
56  int width;
57  int height;
58 } ThreadData;
59 
60 static int unsharp_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
61 {
62  ThreadData *td = arg;
63  UnsharpFilterParam *fp = td->fp;
64  uint32_t **sc = fp->sc;
65  uint32_t *sr = fp->sr;
66  const uint8_t *src2 = NULL; //silence a warning
67  const int amount = fp->amount;
68  const int steps_x = fp->steps_x;
69  const int steps_y = fp->steps_y;
70  const int scalebits = fp->scalebits;
71  const int32_t halfscale = fp->halfscale;
72 
73  uint8_t *dst = td->dst;
74  const uint8_t *src = td->src;
75  const int dst_stride = td->dst_stride;
76  const int src_stride = td->src_stride;
77  const int width = td->width;
78  const int height = td->height;
79  const int sc_offset = jobnr * 2 * steps_y;
80  const int sr_offset = jobnr * (MAX_MATRIX_SIZE - 1);
81  const int slice_start = (height * jobnr) / nb_jobs;
82  const int slice_end = (height * (jobnr+1)) / nb_jobs;
83 
84  int32_t res;
85  int x, y, z;
86  uint32_t tmp1, tmp2;
87 
88  if (!amount) {
89  av_image_copy_plane(dst + slice_start * dst_stride, dst_stride,
90  src + slice_start * src_stride, src_stride,
91  width, slice_end - slice_start);
92  return 0;
93  }
94 
95  for (y = 0; y < 2 * steps_y; y++)
96  memset(sc[sc_offset + y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x));
97 
98  // if this is not the first tile, we start from (slice_start - steps_y),
99  // so we can get smooth result at slice boundary
100  if (slice_start > steps_y) {
101  src += (slice_start - steps_y) * src_stride;
102  dst += (slice_start - steps_y) * dst_stride;
103  }
104 
105  for (y = -steps_y + slice_start; y < steps_y + slice_end; y++) {
106  if (y < height)
107  src2 = src;
108 
109  memset(sr + sr_offset, 0, sizeof(sr[0]) * (2 * steps_x - 1));
110  for (x = -steps_x; x < width + steps_x; x++) {
111  tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x];
112  for (z = 0; z < steps_x * 2; z += 2) {
113  tmp2 = sr[sr_offset + z + 0] + tmp1; sr[sr_offset + z + 0] = tmp1;
114  tmp1 = sr[sr_offset + z + 1] + tmp2; sr[sr_offset + z + 1] = tmp2;
115  }
116  for (z = 0; z < steps_y * 2; z += 2) {
117  tmp2 = sc[sc_offset + z + 0][x + steps_x] + tmp1; sc[sc_offset + z + 0][x + steps_x] = tmp1;
118  tmp1 = sc[sc_offset + z + 1][x + steps_x] + tmp2; sc[sc_offset + z + 1][x + steps_x] = tmp2;
119  }
120  if (x >= steps_x && y >= (steps_y + slice_start)) {
121  const uint8_t *srx = src - steps_y * src_stride + x - steps_x;
122  uint8_t *dsx = dst - steps_y * dst_stride + x - steps_x;
123 
124  res = (int32_t)*srx + ((((int32_t) * srx - (int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> 16);
125  *dsx = av_clip_uint8(res);
126  }
127  }
128  if (y >= 0) {
129  dst += dst_stride;
130  src += src_stride;
131  }
132  }
133  return 0;
134 }
135 
137 {
138  AVFilterLink *inlink = ctx->inputs[0];
139  UnsharpContext *s = ctx->priv;
140  int i, plane_w[3], plane_h[3];
142  ThreadData td;
143 
144  plane_w[0] = inlink->w;
145  plane_w[1] = plane_w[2] = AV_CEIL_RSHIFT(inlink->w, s->hsub);
146  plane_h[0] = inlink->h;
147  plane_h[1] = plane_h[2] = AV_CEIL_RSHIFT(inlink->h, s->vsub);
148  fp[0] = &s->luma;
149  fp[1] = fp[2] = &s->chroma;
150  for (i = 0; i < 3; i++) {
151  td.fp = fp[i];
152  td.dst = out->data[i];
153  td.src = in->data[i];
154  td.width = plane_w[i];
155  td.height = plane_h[i];
156  td.dst_stride = out->linesize[i];
157  td.src_stride = in->linesize[i];
158  ctx->internal->execute(ctx, unsharp_slice, &td, NULL, FFMIN(plane_h[i], s->nb_threads));
159  }
160  return 0;
161 }
162 
163 static void set_filter_param(UnsharpFilterParam *fp, int msize_x, int msize_y, float amount)
164 {
165  fp->msize_x = msize_x;
166  fp->msize_y = msize_y;
167  fp->amount = amount * 65536.0;
168 
169  fp->steps_x = msize_x / 2;
170  fp->steps_y = msize_y / 2;
171  fp->scalebits = (fp->steps_x + fp->steps_y) * 2;
172  fp->halfscale = 1 << (fp->scalebits - 1);
173 }
174 
176 {
177  UnsharpContext *s = ctx->priv;
178 
179  set_filter_param(&s->luma, s->lmsize_x, s->lmsize_y, s->lamount);
181 
182  if (s->luma.scalebits >= 26 || s->chroma.scalebits >= 26) {
183  av_log(ctx, AV_LOG_ERROR, "luma or chroma matrix size too big\n");
184  return AVERROR(EINVAL);
185  }
187  return 0;
188 }
189 
191 {
192  static const enum AVPixelFormat pix_fmts[] = {
196  };
197 
198  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
199  if (!fmts_list)
200  return AVERROR(ENOMEM);
201  return ff_set_common_formats(ctx, fmts_list);
202 }
203 
204 static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
205 {
206  int z;
207  UnsharpContext *s = ctx->priv;
208  const char *effect = fp->amount == 0 ? "none" : fp->amount < 0 ? "blur" : "sharpen";
209 
210  if (!(fp->msize_x & fp->msize_y & 1)) {
211  av_log(ctx, AV_LOG_ERROR,
212  "Invalid even size for %s matrix size %dx%d\n",
213  effect_type, fp->msize_x, fp->msize_y);
214  return AVERROR(EINVAL);
215  }
216 
217  av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n",
218  effect, effect_type, fp->msize_x, fp->msize_y, fp->amount / 65535.0);
219 
220  fp->sr = av_malloc_array((MAX_MATRIX_SIZE - 1) * s->nb_threads, sizeof(uint32_t));
221  fp->sc = av_mallocz_array(2 * fp->steps_y * s->nb_threads, sizeof(uint32_t *));
222  if (!fp->sr || !fp->sc)
223  return AVERROR(ENOMEM);
224 
225  for (z = 0; z < 2 * fp->steps_y * s->nb_threads; z++)
226  if (!(fp->sc[z] = av_malloc_array(width + 2 * fp->steps_x,
227  sizeof(*(fp->sc[z])))))
228  return AVERROR(ENOMEM);
229 
230  return 0;
231 }
232 
233 static int config_props(AVFilterLink *link)
234 {
235  UnsharpContext *s = link->dst->priv;
237  int ret;
238 
239  s->hsub = desc->log2_chroma_w;
240  s->vsub = desc->log2_chroma_h;
241 
242  // ensure (height / nb_threads) > 4 * steps_y,
243  // so that we don't have too much overlap between two threads
245  link->h / (4 * s->luma.steps_y));
246 
247  ret = init_filter_param(link->dst, &s->luma, "luma", link->w);
248  if (ret < 0)
249  return ret;
250  ret = init_filter_param(link->dst, &s->chroma, "chroma", AV_CEIL_RSHIFT(link->w, s->hsub));
251  if (ret < 0)
252  return ret;
253 
254  return 0;
255 }
256 
257 static void free_filter_param(UnsharpFilterParam *fp, int nb_threads)
258 {
259  int z;
260 
261  if (fp->sc) {
262  for (z = 0; z < 2 * fp->steps_y * nb_threads; z++)
263  av_freep(&fp->sc[z]);
264  av_freep(&fp->sc);
265  }
266  av_freep(&fp->sr);
267 }
268 
270 {
271  UnsharpContext *s = ctx->priv;
272 
275 }
276 
277 static int filter_frame(AVFilterLink *link, AVFrame *in)
278 {
279  UnsharpContext *s = link->dst->priv;
280  AVFilterLink *outlink = link->dst->outputs[0];
281  AVFrame *out;
282  int ret = 0;
283 
284  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
285  if (!out) {
286  av_frame_free(&in);
287  return AVERROR(ENOMEM);
288  }
289  av_frame_copy_props(out, in);
290 
291  ret = s->apply_unsharp(link->dst, in, out);
292 
293  av_frame_free(&in);
294 
295  if (ret < 0) {
296  av_frame_free(&out);
297  return ret;
298  }
299  return ff_filter_frame(outlink, out);
300 }
301 
302 #define OFFSET(x) offsetof(UnsharpContext, x)
303 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
304 #define MIN_SIZE 3
305 #define MAX_SIZE 23
306 static const AVOption unsharp_options[] = {
307  { "luma_msize_x", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
308  { "lx", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
309  { "luma_msize_y", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
310  { "ly", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
311  { "luma_amount", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
312  { "la", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
313  { "chroma_msize_x", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
314  { "cx", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
315  { "chroma_msize_y", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
316  { "cy", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
317  { "chroma_amount", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
318  { "ca", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
319  { "opencl", "ignored", OFFSET(opencl), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
320  { NULL }
321 };
322 
323 AVFILTER_DEFINE_CLASS(unsharp);
324 
326  {
327  .name = "default",
328  .type = AVMEDIA_TYPE_VIDEO,
329  .filter_frame = filter_frame,
330  .config_props = config_props,
331  },
332  { NULL }
333 };
334 
336  {
337  .name = "default",
338  .type = AVMEDIA_TYPE_VIDEO,
339  },
340  { NULL }
341 };
342 
344  .name = "unsharp",
345  .description = NULL_IF_CONFIG_SMALL("Sharpen or blur the input video."),
346  .priv_size = sizeof(UnsharpContext),
347  .priv_class = &unsharp_class,
348  .init = init,
349  .uninit = uninit,
351  .inputs = avfilter_vf_unsharp_inputs,
352  .outputs = avfilter_vf_unsharp_outputs,
354 };
#define NULL
Definition: coverity.c:32
static int unsharp_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: vf_unsharp.c:60
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
static const AVFilterPad avfilter_vf_unsharp_inputs[]
Definition: vf_unsharp.c:325
int lmsize_x
Definition: unsharp.h:46
AVOption.
Definition: opt.h:246
#define FLAGS
Definition: vf_unsharp.c:303
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
Main libavfilter public API header.
Memory handling functions.
static void free_filter_param(UnsharpFilterParam *fp, int nb_threads)
Definition: vf_unsharp.c:257
const char * desc
Definition: nvenc.c:68
static av_cold int init(AVFilterContext *ctx)
Definition: vf_unsharp.c:175
UnsharpFilterParam luma
luma parameters (width, height, amount)
Definition: unsharp.h:48
int msize_y
matrix height
Definition: unsharp.h:34
float lamount
Definition: unsharp.h:47
uint32_t * sr
finite state machine storage within a row
Definition: unsharp.h:40
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
int src_stride
Definition: vf_unsharp.c:55
#define src
Definition: vp8dsp.c:254
#define MAX_SIZE
Definition: vf_unsharp.c:305
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
int(* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
Definition: unsharp.h:53
int lmsize_y
Definition: unsharp.h:46
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
#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
const char * name
Pad name.
Definition: internal.h:60
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int steps_x
horizontal step count
Definition: unsharp.h:36
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
#define OFFSET(x)
Definition: vf_unsharp.c:302
AVFilter ff_vf_unsharp
Definition: vf_unsharp.c:343
int height
Definition: vf_avgblur.c:61
static const AVFilterPad avfilter_vf_unsharp_outputs[]
Definition: vf_unsharp.c:335
#define height
AVFrame * dst
Definition: vf_blend.c:55
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:100
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
int scalebits
bits to shift pixel
Definition: unsharp.h:38
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
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
int32_t halfscale
amount to add to pixel
Definition: unsharp.h:39
#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
#define MIN_SIZE
Definition: vf_unsharp.c:304
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
const uint8_t * src
Definition: vf_bm3d.c:56
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
int amount
effect amount
Definition: unsharp.h:35
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
int cmsize_x
Definition: unsharp.h:46
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
#define width
uint32_t ** sc
finite state machine storage across rows
Definition: unsharp.h:41
float camount
Definition: unsharp.h:47
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_unsharp.c:269
int32_t
AVFormatContext * ctx
Definition: movenc.c:48
#define s(width, name)
Definition: cbs_vp9.c:257
static int apply_unsharp_c(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
Definition: vf_unsharp.c:136
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_unsharp.c:277
static const AVOption unsharp_options[]
Definition: vf_unsharp.c:306
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
AVFILTER_DEFINE_CLASS(unsharp)
static int config_props(AVFilterLink *link)
Definition: vf_unsharp.c:233
Used for passing data between threads.
Definition: af_adeclick.c:487
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
int steps_y
vertical step count
Definition: unsharp.h:37
#define fp
Definition: regdef.h:44
int msize_x
matrix width
Definition: unsharp.h:33
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)\", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Filter definition.
Definition: avfilter.h:144
static void set_filter_param(UnsharpFilterParam *fp, int msize_x, int msize_y, float amount)
Definition: vf_unsharp.c:163
static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
Definition: vf_unsharp.c:204
UnsharpFilterParam chroma
chroma parameters (width, height, amount)
Definition: unsharp.h:49
static int query_formats(AVFilterContext *ctx)
Definition: vf_unsharp.c:190
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
int cmsize_y
Definition: unsharp.h:46
#define flags(name, subs,...)
Definition: cbs_av1.c:564
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:378
#define MAX_MATRIX_SIZE
Definition: unsharp.h:29
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
common internal and external API header
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:73
avfilter_execute_func * execute
Definition: internal.h:155
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
Handle slice ends.
Definition: mpeg12dec.c:2029
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
FILE * out
Definition: movenc.c:54
#define av_freep(p)
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
#define av_malloc_array(a, b)
int dst_stride
Definition: vf_unsharp.c:54
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
Definition: imgutils.c:338
internal API functions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
UnsharpFilterParam * fp
Definition: vf_unsharp.c:51
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654
int nb_threads
Definition: unsharp.h:51
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition: mem.c:191
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58