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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 #include "unsharp_opencl.h"
50 
51 static void apply_unsharp( uint8_t *dst, int dst_stride,
52  const uint8_t *src, int src_stride,
53  int width, int height, UnsharpFilterParam *fp)
54 {
55  uint32_t **sc = fp->sc;
56  uint32_t sr[MAX_MATRIX_SIZE - 1], tmp1, tmp2;
57 
58  int32_t res;
59  int x, y, z;
60  const uint8_t *src2 = NULL; //silence a warning
61  const int amount = fp->amount;
62  const int steps_x = fp->steps_x;
63  const int steps_y = fp->steps_y;
64  const int scalebits = fp->scalebits;
65  const int32_t halfscale = fp->halfscale;
66 
67  if (!amount) {
68  av_image_copy_plane(dst, dst_stride, src, src_stride, width, height);
69  return;
70  }
71 
72  for (y = 0; y < 2 * steps_y; y++)
73  memset(sc[y], 0, sizeof(sc[y][0]) * (width + 2 * steps_x));
74 
75  for (y = -steps_y; y < height + steps_y; y++) {
76  if (y < height)
77  src2 = src;
78 
79  memset(sr, 0, sizeof(sr[0]) * (2 * steps_x - 1));
80  for (x = -steps_x; x < width + steps_x; x++) {
81  tmp1 = x <= 0 ? src2[0] : x >= width ? src2[width-1] : src2[x];
82  for (z = 0; z < steps_x * 2; z += 2) {
83  tmp2 = sr[z + 0] + tmp1; sr[z + 0] = tmp1;
84  tmp1 = sr[z + 1] + tmp2; sr[z + 1] = tmp2;
85  }
86  for (z = 0; z < steps_y * 2; z += 2) {
87  tmp2 = sc[z + 0][x + steps_x] + tmp1; sc[z + 0][x + steps_x] = tmp1;
88  tmp1 = sc[z + 1][x + steps_x] + tmp2; sc[z + 1][x + steps_x] = tmp2;
89  }
90  if (x >= steps_x && y >= steps_y) {
91  const uint8_t *srx = src - steps_y * src_stride + x - steps_x;
92  uint8_t *dsx = dst - steps_y * dst_stride + x - steps_x;
93 
94  res = (int32_t)*srx + ((((int32_t) * srx - (int32_t)((tmp1 + halfscale) >> scalebits)) * amount) >> 16);
95  *dsx = av_clip_uint8(res);
96  }
97  }
98  if (y >= 0) {
99  dst += dst_stride;
100  src += src_stride;
101  }
102  }
103 }
104 
106 {
107  AVFilterLink *inlink = ctx->inputs[0];
108  UnsharpContext *s = ctx->priv;
109  int i, plane_w[3], plane_h[3];
111  plane_w[0] = inlink->w;
112  plane_w[1] = plane_w[2] = AV_CEIL_RSHIFT(inlink->w, s->hsub);
113  plane_h[0] = inlink->h;
114  plane_h[1] = plane_h[2] = AV_CEIL_RSHIFT(inlink->h, s->vsub);
115  fp[0] = &s->luma;
116  fp[1] = fp[2] = &s->chroma;
117  for (i = 0; i < 3; i++) {
118  apply_unsharp(out->data[i], out->linesize[i], in->data[i], in->linesize[i], plane_w[i], plane_h[i], fp[i]);
119  }
120  return 0;
121 }
122 
123 static void set_filter_param(UnsharpFilterParam *fp, int msize_x, int msize_y, float amount)
124 {
125  fp->msize_x = msize_x;
126  fp->msize_y = msize_y;
127  fp->amount = amount * 65536.0;
128 
129  fp->steps_x = msize_x / 2;
130  fp->steps_y = msize_y / 2;
131  fp->scalebits = (fp->steps_x + fp->steps_y) * 2;
132  fp->halfscale = 1 << (fp->scalebits - 1);
133 }
134 
136 {
137  int ret = 0;
138  UnsharpContext *s = ctx->priv;
139 
140 
141  set_filter_param(&s->luma, s->lmsize_x, s->lmsize_y, s->lamount);
143 
145  if (!CONFIG_OPENCL && s->opencl) {
146  av_log(ctx, AV_LOG_ERROR, "OpenCL support was not enabled in this build, cannot be selected\n");
147  return AVERROR(EINVAL);
148  }
149  if (CONFIG_OPENCL && s->opencl) {
151  ret = ff_opencl_unsharp_init(ctx);
152  if (ret < 0)
153  return ret;
154  }
155  return 0;
156 }
157 
159 {
160  static const enum AVPixelFormat pix_fmts[] = {
164  };
165 
166  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
167  if (!fmts_list)
168  return AVERROR(ENOMEM);
169  return ff_set_common_formats(ctx, fmts_list);
170 }
171 
172 static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
173 {
174  int z;
175  const char *effect = fp->amount == 0 ? "none" : fp->amount < 0 ? "blur" : "sharpen";
176 
177  if (!(fp->msize_x & fp->msize_y & 1)) {
178  av_log(ctx, AV_LOG_ERROR,
179  "Invalid even size for %s matrix size %dx%d\n",
180  effect_type, fp->msize_x, fp->msize_y);
181  return AVERROR(EINVAL);
182  }
183 
184  av_log(ctx, AV_LOG_VERBOSE, "effect:%s type:%s msize_x:%d msize_y:%d amount:%0.2f\n",
185  effect, effect_type, fp->msize_x, fp->msize_y, fp->amount / 65535.0);
186 
187  for (z = 0; z < 2 * fp->steps_y; z++)
188  if (!(fp->sc[z] = av_malloc_array(width + 2 * fp->steps_x,
189  sizeof(*(fp->sc[z])))))
190  return AVERROR(ENOMEM);
191 
192  return 0;
193 }
194 
195 static int config_props(AVFilterLink *link)
196 {
197  UnsharpContext *s = link->dst->priv;
199  int ret;
200 
201  s->hsub = desc->log2_chroma_w;
202  s->vsub = desc->log2_chroma_h;
203 
204  ret = init_filter_param(link->dst, &s->luma, "luma", link->w);
205  if (ret < 0)
206  return ret;
207  ret = init_filter_param(link->dst, &s->chroma, "chroma", AV_CEIL_RSHIFT(link->w, s->hsub));
208  if (ret < 0)
209  return ret;
210 
211  return 0;
212 }
213 
215 {
216  int z;
217 
218  for (z = 0; z < 2 * fp->steps_y; z++)
219  av_freep(&fp->sc[z]);
220 }
221 
223 {
224  UnsharpContext *s = ctx->priv;
225 
226  if (CONFIG_OPENCL && s->opencl) {
228  }
229 
230  free_filter_param(&s->luma);
232 }
233 
234 static int filter_frame(AVFilterLink *link, AVFrame *in)
235 {
236  UnsharpContext *s = link->dst->priv;
237  AVFilterLink *outlink = link->dst->outputs[0];
238  AVFrame *out;
239  int ret = 0;
240 
241  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
242  if (!out) {
243  av_frame_free(&in);
244  return AVERROR(ENOMEM);
245  }
246  av_frame_copy_props(out, in);
247  if (CONFIG_OPENCL && s->opencl) {
248  ret = ff_opencl_unsharp_process_inout_buf(link->dst, in, out);
249  if (ret < 0)
250  goto end;
251  }
252 
253  ret = s->apply_unsharp(link->dst, in, out);
254 end:
255  av_frame_free(&in);
256 
257  if (ret < 0)
258  return ret;
259  return ff_filter_frame(outlink, out);
260 }
261 
262 #define OFFSET(x) offsetof(UnsharpContext, x)
263 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
264 #define MIN_SIZE 3
265 #define MAX_SIZE 63
266 static const AVOption unsharp_options[] = {
267  { "luma_msize_x", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
268  { "lx", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
269  { "luma_msize_y", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
270  { "ly", "set luma matrix vertical size", OFFSET(lmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
271  { "luma_amount", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
272  { "la", "set luma effect strength", OFFSET(lamount), AV_OPT_TYPE_FLOAT, { .dbl = 1 }, -2, 5, FLAGS },
273  { "chroma_msize_x", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
274  { "cx", "set chroma matrix horizontal size", OFFSET(cmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
275  { "chroma_msize_y", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
276  { "cy", "set chroma matrix vertical size", OFFSET(cmsize_y), AV_OPT_TYPE_INT, { .i64 = 5 }, MIN_SIZE, MAX_SIZE, FLAGS },
277  { "chroma_amount", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
278  { "ca", "set chroma effect strength", OFFSET(camount), AV_OPT_TYPE_FLOAT, { .dbl = 0 }, -2, 5, FLAGS },
279  { "opencl", "use OpenCL filtering capabilities", OFFSET(opencl), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
280  { NULL }
281 };
282 
283 AVFILTER_DEFINE_CLASS(unsharp);
284 
286  {
287  .name = "default",
288  .type = AVMEDIA_TYPE_VIDEO,
289  .filter_frame = filter_frame,
290  .config_props = config_props,
291  },
292  { NULL }
293 };
294 
296  {
297  .name = "default",
298  .type = AVMEDIA_TYPE_VIDEO,
299  },
300  { NULL }
301 };
302 
304  .name = "unsharp",
305  .description = NULL_IF_CONFIG_SMALL("Sharpen or blur the input video."),
306  .priv_size = sizeof(UnsharpContext),
307  .priv_class = &unsharp_class,
308  .init = init,
309  .uninit = uninit,
311  .inputs = avfilter_vf_unsharp_inputs,
312  .outputs = avfilter_vf_unsharp_outputs,
314 };
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
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
static const AVFilterPad avfilter_vf_unsharp_inputs[]
Definition: vf_unsharp.c:285
int lmsize_x
Definition: unsharp.h:73
AVOption.
Definition: opt.h:245
#define FLAGS
Definition: vf_unsharp.c:263
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.
Memory handling functions.
const char * desc
Definition: nvenc.c:97
static av_cold int init(AVFilterContext *ctx)
Definition: vf_unsharp.c:135
UnsharpFilterParam luma
luma parameters (width, height, amount)
Definition: unsharp.h:75
int msize_y
matrix height
Definition: unsharp.h:62
float lamount
Definition: unsharp.h:74
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
#define MAX_SIZE
Definition: vf_unsharp.c:265
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
int lmsize_y
Definition: unsharp.h:73
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:59
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:315
int steps_x
horizontal step count
Definition: unsharp.h:64
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1180
void ff_opencl_unsharp_uninit(AVFilterContext *ctx)
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
#define OFFSET(x)
Definition: vf_unsharp.c:262
AVFilter ff_vf_unsharp
Definition: vf_unsharp.c:303
static const AVFilterPad avfilter_vf_unsharp_outputs[]
Definition: vf_unsharp.c:295
#define height
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range...
Definition: pixfmt.h:101
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:75
#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:53
int ff_opencl_unsharp_init(AVFilterContext *ctx)
int scalebits
bits to shift pixel
Definition: unsharp.h:66
#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
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:67
#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:153
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
#define MIN_SIZE
Definition: vf_unsharp.c:264
void * priv
private data for use by the filter
Definition: avfilter.h:322
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
int amount
effect amount
Definition: unsharp.h:63
int cmsize_x
Definition: unsharp.h:73
uint32_t * sc[MAX_MATRIX_SIZE-1]
finite state machine storage
Definition: unsharp.h:68
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
static void apply_unsharp(uint8_t *dst, int dst_stride, const uint8_t *src, int src_stride, int width, int height, UnsharpFilterParam *fp)
Definition: vf_unsharp.c:51
float camount
Definition: unsharp.h:74
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_unsharp.c:222
int32_t
AVFormatContext * ctx
Definition: movenc.c:48
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
static int apply_unsharp_c(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
Definition: vf_unsharp.c:105
#define src
Definition: vp9dsp.c:530
static int filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_unsharp.c:234
static const AVOption unsharp_options[]
Definition: vf_unsharp.c:266
int ff_opencl_unsharp_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
AVFILTER_DEFINE_CLASS(unsharp)
static int config_props(AVFilterLink *link)
Definition: vf_unsharp.c:195
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:215
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:65
#define fp
Definition: regdef.h: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
int msize_x
matrix width
Definition: unsharp.h:61
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:68
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:123
static int init_filter_param(AVFilterContext *ctx, UnsharpFilterParam *fp, const char *effect_type, int width)
Definition: vf_unsharp.c:172
UnsharpFilterParam chroma
chroma parameters (width, height, amount)
Definition: unsharp.h:76
static int query_formats(AVFilterContext *ctx)
Definition: vf_unsharp.c:158
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
int(* apply_unsharp)(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
Definition: unsharp.h:82
int cmsize_y
Definition: unsharp.h:73
static int flags
Definition: cpu.c:47
#define MAX_MATRIX_SIZE
Definition: unsharp.h:32
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
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:76
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
A list of supported formats for one end of a filter link.
Definition: formats.h:64
An instance of a filter.
Definition: avfilter.h:307
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:100
#define av_malloc_array(a, b)
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:287
internal API functions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:580
int ff_opencl_apply_unsharp(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58
static void free_filter_param(UnsharpFilterParam *fp)
Definition: vf_unsharp.c:214