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vf_bitplanenoise.c
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1 /*
2  * Copyright (c) 2016 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/opt.h"
22 #include "libavutil/imgutils.h"
23 #include "avfilter.h"
24 #include "formats.h"
25 #include "internal.h"
26 #include "video.h"
27 
28 typedef struct BPNContext {
29  const AVClass *class;
30 
31  int bitplane;
32  int filter;
33 
34  int nb_planes;
35  int planeheight[4];
36  int planewidth[4];
37  int depth;
38 } BPNContext;
39 
40 #define OFFSET(x) offsetof(BPNContext, x)
41 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
42 static const AVOption bitplanenoise_options[] = {
43  { "bitplane", "set bit plane to use for measuring noise", OFFSET(bitplane), AV_OPT_TYPE_INT, {.i64=1}, 1, 16, FLAGS},
44  { "filter", "show noisy pixels", OFFSET(filter), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS},
45  { NULL }
46 };
47 
48 AVFILTER_DEFINE_CLASS(bitplanenoise);
49 
51 {
52  static const enum AVPixelFormat pixfmts[] = {
69  };
70 
72  if (!formats)
73  return AVERROR(ENOMEM);
74  return ff_set_common_formats(ctx, formats);
75 }
76 
77 static int config_input(AVFilterLink *inlink)
78 {
80  AVFilterContext *ctx = inlink->dst;
81  BPNContext *s = ctx->priv;
82 
83  s->nb_planes = desc->nb_components;
84 
85  s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
86  s->planeheight[0] = s->planeheight[3] = inlink->h;
87  s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
88  s->planewidth[0] = s->planewidth[3] = inlink->w;
89 
90  s->depth = desc->comp[0].depth;
91 
92  return 0;
93 }
94 
95 #define CHECK_BIT(x, a, b, c) { \
96  bit = (((val[(x)] & mask) == (val[(x) + (a)] & mask)) + \
97  ((val[(x)] & mask) == (val[(x) + (b)] & mask)) + \
98  ((val[(x)] & mask) == (val[(x) + (c)] & mask))) > 1; \
99  if (dst) \
100  dst[(x)] = factor * bit; \
101  stats[plane] += bit; }
102 
103 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
104 {
105  AVFilterContext *ctx = inlink->dst;
106  AVFilterLink *outlink = ctx->outputs[0];
107  BPNContext *s = ctx->priv;
108  const int mask = (1 << (s->bitplane - 1));
109  const int factor = (1 << s->depth) - 1;
110  float stats[4] = { 0 };
111  char metabuf[128];
112  int plane, y, x, bit;
113  AVFrame *out = s->filter ? NULL : in;
114 
115  if (!out) {
116  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
117  if (!out) {
118  av_frame_free(&in);
119  return AVERROR(ENOMEM);
120  }
121  av_frame_copy_props(out, in);
122  }
123 
124  if (s->depth <= 8) {
125  for (plane = 0; plane < s->nb_planes; plane++) {
126  const int linesize = in->linesize[plane];
127  const int dlinesize = out->linesize[plane];
128  uint8_t *val = in->data[plane];
129  uint8_t *dst = s->filter ? out->data[plane]: NULL;
130 
131  for (y = 0; y < s->planeheight[plane] - 1; y++) {
132  CHECK_BIT(0, 1, 1 + linesize, linesize)
133 
134  for (x = 1; x < s->planewidth[plane] - 1; x++) {
135  CHECK_BIT(x, -1, 1, linesize)
136  }
137 
138  CHECK_BIT(x, -1, -1 + linesize, linesize)
139 
140  val += linesize;
141  if (dst)
142  dst += dlinesize;
143  }
144 
145  CHECK_BIT(0, 1, 1 - linesize, -linesize)
146 
147  for (x = 1; x < s->planewidth[plane] - 1; x++) {
148  CHECK_BIT(x, -1, 1, -linesize)
149  }
150 
151  CHECK_BIT(x, -1, -1 - linesize, -linesize)
152  }
153  } else {
154  for (plane = 0; plane < s->nb_planes; plane++) {
155  const int linesize = in->linesize[plane] / 2;
156  const int dlinesize = out->linesize[plane] / 2;
157  uint16_t *val = (uint16_t *)in->data[plane];
158  uint16_t *dst = s->filter ? (uint16_t *)out->data[plane] : NULL;
159 
160  val = (uint16_t *)in->data[plane];
161  for (y = 0; y < s->planeheight[plane] - 1; y++) {
162  CHECK_BIT(0, 1, 1 + linesize, linesize)
163 
164  for (x = 1; x < s->planewidth[plane] - 1; x++) {
165  CHECK_BIT(x, -1, 1, linesize)
166  }
167 
168  CHECK_BIT(x, -1, -1 + linesize, linesize)
169 
170  val += linesize;
171  if (dst)
172  dst += dlinesize;
173  }
174 
175  CHECK_BIT(0, 1, 1 - linesize, -linesize)
176 
177  for (x = 1; x < s->planewidth[plane] - 1; x++) {
178  CHECK_BIT(x, -1, 1, -linesize)
179  }
180 
181  CHECK_BIT(x, -1, -1 -linesize, -linesize)
182  }
183  }
184 
185  for (plane = 0; plane < s->nb_planes; plane++) {
186  char key[32];
187 
188  stats[plane] /= s->planewidth[plane] * s->planeheight[plane];
189  snprintf(key, sizeof(key), "lavfi.bitplanenoise.%d.%d", plane, s->bitplane);
190  snprintf(metabuf, sizeof(metabuf), "%f", 1. - 2.* fabs((stats[plane] - 0.5)));
191  av_dict_set(&out->metadata, key, metabuf, 0);
192  }
193 
194  if (out != in)
195  av_frame_free(&in);
196 
197  return ff_filter_frame(outlink, out);
198 }
199 
200 static const AVFilterPad inputs[] = {
201  {
202  .name = "default",
203  .type = AVMEDIA_TYPE_VIDEO,
204  .filter_frame = filter_frame,
205  .config_props = config_input,
206  },
207  { NULL }
208 };
209 
210 static const AVFilterPad outputs[] = {
211  {
212  .name = "default",
213  .type = AVMEDIA_TYPE_VIDEO,
214  },
215  { NULL }
216 };
217 
219  .name = "bitplanenoise",
220  .description = NULL_IF_CONFIG_SMALL("Measure bit plane noise."),
221  .priv_size = sizeof(BPNContext),
223  .inputs = inputs,
224  .outputs = outputs,
225  .priv_class = &bitplanenoise_class,
227 };
int plane
Definition: avisynth_c.h:422
#define NULL
Definition: coverity.c:32
const char const char void * val
Definition: avisynth_c.h:771
const char * s
Definition: avisynth_c.h:768
#define AV_PIX_FMT_YUV440P10
Definition: pixfmt.h:343
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2266
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
AVOption.
Definition: opt.h:245
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:351
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
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:180
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:357
static enum AVSampleFormat formats[]
Definition: avresample.c:163
static const AVFilterPad outputs[]
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:345
AVFilter ff_vf_bitplanenoise
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
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
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1189
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
AVOptions.
#define CHECK_BIT(x, a, b, c)
static void filter(int16_t *output, ptrdiff_t out_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len, uint8_t clip)
Definition: cfhd.c:80
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:356
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
AVDictionary * metadata
metadata.
Definition: frame.h:474
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:354
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:346
A filter pad used for either input or output.
Definition: internal.h:53
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
static const uint16_t mask[17]
Definition: lzw.c:38
#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:158
#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 FLAGS
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:344
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:66
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:339
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:360
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:325
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:74
static const AVFilterPad inputs[]
AVFormatContext * ctx
Definition: movenc.c:48
int planewidth[4]
static int query_formats(AVFilterContext *ctx)
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:340
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:359
static const AVOption bitplanenoise_options[]
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:352
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:349
int planeheight[4]
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
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 av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:341
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
AVFILTER_DEFINE_CLASS(bitplanenoise)
static const int factor[16]
Definition: vf_pp7.c:75
const char * name
Filter name.
Definition: avfilter.h:148
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:347
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:338
#define snprintf
Definition: snprintf.h:34
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:319
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:350
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:358
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:342
static int flags
Definition: cpu.c:47
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:348
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
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:76
#define OFFSET(x)
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
static int config_input(AVFilterLink *inlink)
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:272
static void stats(const struct CachedBuf *in, int n_in, unsigned *_max, unsigned *_sum)
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
internal API functions
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:353
for(j=16;j >0;--j)
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:589
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58