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vf_vidstabdetect.c
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1 /*
2  * Copyright (c) 2013 Georg Martius <georg dot martius at web dot de>
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 #define DEFAULT_RESULT_NAME "transforms.trf"
22 
23 #include <vid.stab/libvidstab.h>
24 
25 #include "libavutil/common.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/imgutils.h"
28 #include "avfilter.h"
29 #include "internal.h"
30 
31 #include "vidstabutils.h"
32 
33 typedef struct StabData {
34  const AVClass *class;
35 
36  VSMotionDetect md;
37  VSMotionDetectConfig conf;
38 
39  char *result;
40  FILE *f;
41 } StabData;
42 
43 
44 #define OFFSET(x) offsetof(StabData, x)
45 #define OFFSETC(x) (offsetof(StabData, conf)+offsetof(VSMotionDetectConfig, x))
46 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
47 
48 static const AVOption vidstabdetect_options[] = {
49  {"result", "path to the file used to write the transforms", OFFSET(result), AV_OPT_TYPE_STRING, {.str = DEFAULT_RESULT_NAME}, .flags = FLAGS},
50  {"shakiness", "how shaky is the video and how quick is the camera?"
51  " 1: little (fast) 10: very strong/quick (slow)", OFFSETC(shakiness), AV_OPT_TYPE_INT, {.i64 = 5}, 1, 10, FLAGS},
52  {"accuracy", "(>=shakiness) 1: low 15: high (slow)", OFFSETC(accuracy), AV_OPT_TYPE_INT, {.i64 = 15}, 1, 15, FLAGS},
53  {"stepsize", "region around minimum is scanned with 1 pixel resolution", OFFSETC(stepSize), AV_OPT_TYPE_INT, {.i64 = 6}, 1, 32, FLAGS},
54  {"mincontrast", "below this contrast a field is discarded (0-1)", OFFSETC(contrastThreshold), AV_OPT_TYPE_DOUBLE, {.dbl = 0.25}, 0.0, 1.0, FLAGS},
55  {"show", "0: draw nothing; 1,2: show fields and transforms", OFFSETC(show), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 2, FLAGS},
56  {"tripod", "virtual tripod mode (if >0): motion is compared to a reference"
57  " reference frame (frame # is the value)", OFFSETC(virtualTripod), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS},
58  {NULL}
59 };
60 
61 AVFILTER_DEFINE_CLASS(vidstabdetect);
62 
64 {
65  StabData *s = ctx->priv;
66  ff_vs_init();
67  s->class = &vidstabdetect_class;
68  av_log(ctx, AV_LOG_VERBOSE, "vidstabdetect filter: init %s\n", LIBVIDSTAB_VERSION);
69  return 0;
70 }
71 
73 {
74  StabData *s = ctx->priv;
75  VSMotionDetect *md = &(s->md);
76 
77  if (s->f) {
78  fclose(s->f);
79  s->f = NULL;
80  }
81 
82  vsMotionDetectionCleanup(md);
83 }
84 
86 {
87  // If you add something here also add it in vidstabutils.c
88  static const enum AVPixelFormat pix_fmts[] = {
94  };
95 
96  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
97  if (!fmts_list)
98  return AVERROR(ENOMEM);
99  return ff_set_common_formats(ctx, fmts_list);
100 }
101 
102 static int config_input(AVFilterLink *inlink)
103 {
104  AVFilterContext *ctx = inlink->dst;
105  StabData *s = ctx->priv;
106 
107  VSMotionDetect* md = &(s->md);
108  VSFrameInfo fi;
110  int is_planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
111 
112  vsFrameInfoInit(&fi, inlink->w, inlink->h,
113  ff_av2vs_pixfmt(ctx, inlink->format));
114  if (!is_planar && fi.bytesPerPixel != av_get_bits_per_pixel(desc)/8) {
115  av_log(ctx, AV_LOG_ERROR, "pixel-format error: wrong bits/per/pixel, please report a BUG");
116  return AVERROR(EINVAL);
117  }
118  if (fi.log2ChromaW != desc->log2_chroma_w) {
119  av_log(ctx, AV_LOG_ERROR, "pixel-format error: log2_chroma_w, please report a BUG");
120  return AVERROR(EINVAL);
121  }
122 
123  if (fi.log2ChromaH != desc->log2_chroma_h) {
124  av_log(ctx, AV_LOG_ERROR, "pixel-format error: log2_chroma_h, please report a BUG");
125  return AVERROR(EINVAL);
126  }
127 
128  // set values that are not initialized by the options
129  s->conf.algo = 1;
130  s->conf.modName = "vidstabdetect";
131  if (vsMotionDetectInit(md, &s->conf, &fi) != VS_OK) {
132  av_log(ctx, AV_LOG_ERROR, "initialization of Motion Detection failed, please report a BUG");
133  return AVERROR(EINVAL);
134  }
135 
136  vsMotionDetectGetConfig(&s->conf, md);
137  av_log(ctx, AV_LOG_INFO, "Video stabilization settings (pass 1/2):\n");
138  av_log(ctx, AV_LOG_INFO, " shakiness = %d\n", s->conf.shakiness);
139  av_log(ctx, AV_LOG_INFO, " accuracy = %d\n", s->conf.accuracy);
140  av_log(ctx, AV_LOG_INFO, " stepsize = %d\n", s->conf.stepSize);
141  av_log(ctx, AV_LOG_INFO, " mincontrast = %f\n", s->conf.contrastThreshold);
142  av_log(ctx, AV_LOG_INFO, " tripod = %d\n", s->conf.virtualTripod);
143  av_log(ctx, AV_LOG_INFO, " show = %d\n", s->conf.show);
144  av_log(ctx, AV_LOG_INFO, " result = %s\n", s->result);
145 
146  s->f = fopen(s->result, "w");
147  if (s->f == NULL) {
148  av_log(ctx, AV_LOG_ERROR, "cannot open transform file %s\n", s->result);
149  return AVERROR(EINVAL);
150  } else {
151  if (vsPrepareFile(md, s->f) != VS_OK) {
152  av_log(ctx, AV_LOG_ERROR, "cannot write to transform file %s\n", s->result);
153  return AVERROR(EINVAL);
154  }
155  }
156  return 0;
157 }
158 
159 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
160 {
161  AVFilterContext *ctx = inlink->dst;
162  StabData *s = ctx->priv;
163  VSMotionDetect *md = &(s->md);
164  LocalMotions localmotions;
165 
166  AVFilterLink *outlink = inlink->dst->outputs[0];
167  VSFrame frame;
168  int plane;
169 
170  if (s->conf.show > 0 && !av_frame_is_writable(in))
172 
173  for (plane = 0; plane < md->fi.planes; plane++) {
174  frame.data[plane] = in->data[plane];
175  frame.linesize[plane] = in->linesize[plane];
176  }
177  if (vsMotionDetection(md, &localmotions, &frame) != VS_OK) {
178  av_log(ctx, AV_LOG_ERROR, "motion detection failed");
179  return AVERROR(AVERROR_EXTERNAL);
180  } else {
181  if (vsWriteToFile(md, s->f, &localmotions) != VS_OK) {
182  int ret = AVERROR(errno);
183  av_log(ctx, AV_LOG_ERROR, "cannot write to transform file");
184  return ret;
185  }
186  vs_vector_del(&localmotions);
187  }
188 
189  return ff_filter_frame(outlink, in);
190 }
191 
193  {
194  .name = "default",
195  .type = AVMEDIA_TYPE_VIDEO,
196  .filter_frame = filter_frame,
197  .config_props = config_input,
198  },
199  { NULL }
200 };
201 
203  {
204  .name = "default",
205  .type = AVMEDIA_TYPE_VIDEO,
206  },
207  { NULL }
208 };
209 
211  .name = "vidstabdetect",
212  .description = NULL_IF_CONFIG_SMALL("Extract relative transformations, "
213  "pass 1 of 2 for stabilization "
214  "(see vidstabtransform for pass 2)."),
215  .priv_size = sizeof(StabData),
216  .init = init,
217  .uninit = uninit,
219  .inputs = avfilter_vf_vidstabdetect_inputs,
220  .outputs = avfilter_vf_vidstabdetect_outputs,
221  .priv_class = &vidstabdetect_class,
222 };
int plane
Definition: avisynth_c.h:422
static av_cold int init(AVFilterContext *ctx)
#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:2363
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
AVOption.
Definition: opt.h:246
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.
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:64
const char * desc
Definition: nvenc.c:65
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
Definition: pixdesc.c:2315
AVFILTER_DEFINE_CLASS(vidstabdetect)
static int query_formats(AVFilterContext *ctx)
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
const char * name
Pad name.
Definition: internal.h:60
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:97
static const AVOption vidstabdetect_options[]
#define av_cold
Definition: attributes.h:82
#define FLAGS
static int config_input(AVFilterLink *inlink)
AVOptions.
AVFilter ff_vf_vidstabdetect
static AVFrame * frame
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
static const AVFilterPad avfilter_vf_vidstabdetect_outputs[]
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
AVS_FilterInfo ** fi
Definition: avisynth_c.h:731
#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 OFFSET(x)
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 NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
void * priv
private data for use by the filter
Definition: avfilter.h:353
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:89
VSMotionDetect md
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
const AVClass * class
#define md
AVFormatContext * ctx
Definition: movenc.c:48
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:65
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
static const AVFilterPad avfilter_vf_vidstabdetect_inputs[]
int av_frame_is_writable(AVFrame *frame)
Check if the frame data is writable.
Definition: frame.c:592
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:249
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
#define DEFAULT_RESULT_NAME
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:144
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
VSMotionDetectConfig conf
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
int av_frame_make_writable(AVFrame *frame)
Ensure that the frame data is writable, avoiding data copy if possible.
Definition: frame.c:609
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
#define OFFSETC(x)
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
Y , 8bpp.
Definition: pixfmt.h:70
VSPixelFormat ff_av2vs_pixfmt(AVFilterContext *ctx, enum AVPixelFormat pf)
convert AV's pixelformat to vid.stab pixelformat
Definition: vidstabutils.c:24
common internal and external API header
char * result
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:69
static av_cold void uninit(AVFilterContext *ctx)
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
void ff_vs_init(void)
sets the memory allocation function and logging constants to av versions
Definition: vidstabutils.c:69
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:95
internal API functions
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
#define AV_PIX_FMT_FLAG_PLANAR
At least one pixel component is not in the first data plane.
Definition: pixdesc.h:144