FFmpeg
vf_framerate.c
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1 /*
2  * Copyright (C) 2012 Mark Himsley
3  *
4  * get_scene_score() Copyright (c) 2011 Stefano Sabatini
5  * taken from libavfilter/vf_select.c
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 /**
25  * @file
26  * filter for upsampling or downsampling a progressive source
27  */
28 
29 #define DEBUG
30 
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/pixdesc.h"
36 
37 #include "avfilter.h"
38 #include "internal.h"
39 #include "video.h"
40 #include "filters.h"
41 #include "framerate.h"
42 #include "scene_sad.h"
43 
44 #define OFFSET(x) offsetof(FrameRateContext, x)
45 #define V AV_OPT_FLAG_VIDEO_PARAM
46 #define F AV_OPT_FLAG_FILTERING_PARAM
47 #define FRAMERATE_FLAG_SCD 01
48 
49 static const AVOption framerate_options[] = {
50  {"fps", "required output frames per second rate", OFFSET(dest_frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="50"}, 0, INT_MAX, V|F },
51 
52  {"interp_start", "point to start linear interpolation", OFFSET(interp_start), AV_OPT_TYPE_INT, {.i64=15}, 0, 255, V|F },
53  {"interp_end", "point to end linear interpolation", OFFSET(interp_end), AV_OPT_TYPE_INT, {.i64=240}, 0, 255, V|F },
54  {"scene", "scene change level", OFFSET(scene_score), AV_OPT_TYPE_DOUBLE, {.dbl=8.2}, 0, 100., V|F },
55 
56  {"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64=1}, 0, INT_MAX, V|F, "flags" },
57  {"scene_change_detect", "enable scene change detection", 0, AV_OPT_TYPE_CONST, {.i64=FRAMERATE_FLAG_SCD}, INT_MIN, INT_MAX, V|F, "flags" },
58  {"scd", "enable scene change detection", 0, AV_OPT_TYPE_CONST, {.i64=FRAMERATE_FLAG_SCD}, INT_MIN, INT_MAX, V|F, "flags" },
59 
60  {NULL}
61 };
62 
64 
65 static double get_scene_score(AVFilterContext *ctx, AVFrame *crnt, AVFrame *next)
66 {
67  FrameRateContext *s = ctx->priv;
68  double ret = 0;
69 
70  ff_dlog(ctx, "get_scene_score()\n");
71 
72  if (crnt->height == next->height &&
73  crnt->width == next->width) {
74  uint64_t sad;
75  double mafd, diff;
76 
77  ff_dlog(ctx, "get_scene_score() process\n");
78  s->sad(crnt->data[0], crnt->linesize[0], next->data[0], next->linesize[0], crnt->width, crnt->height, &sad);
79  emms_c();
80  mafd = (double)sad * 100.0 / (crnt->width * crnt->height) / (1 << s->bitdepth);
81  diff = fabs(mafd - s->prev_mafd);
82  ret = av_clipf(FFMIN(mafd, diff), 0, 100.0);
83  s->prev_mafd = mafd;
84  }
85  ff_dlog(ctx, "get_scene_score() result is:%f\n", ret);
86  return ret;
87 }
88 
89 typedef struct ThreadData {
92 } ThreadData;
93 
94 static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
95 {
96  FrameRateContext *s = ctx->priv;
97  ThreadData *td = arg;
98  AVFrame *work = s->work;
99  AVFrame *src1 = td->copy_src1;
100  AVFrame *src2 = td->copy_src2;
101  uint16_t src1_factor = td->src1_factor;
102  uint16_t src2_factor = td->src2_factor;
103  int plane;
104 
105  for (plane = 0; plane < 4 && src1->data[plane] && src2->data[plane]; plane++) {
106  const int start = (s->height[plane] * job ) / nb_jobs;
107  const int end = (s->height[plane] * (job+1)) / nb_jobs;
108  uint8_t *src1_data = src1->data[plane] + start * src1->linesize[plane];
109  uint8_t *src2_data = src2->data[plane] + start * src2->linesize[plane];
110  uint8_t *dst_data = work->data[plane] + start * work->linesize[plane];
111 
112  s->blend(src1_data, src1->linesize[plane], src2_data, src2->linesize[plane],
113  dst_data, work->linesize[plane], s->line_size[plane], end - start,
114  src1_factor, src2_factor, s->blend_factor_max >> 1);
115  }
116 
117  return 0;
118 }
119 
121 {
122  FrameRateContext *s = ctx->priv;
123  AVFilterLink *outlink = ctx->outputs[0];
124  double interpolate_scene_score = 0;
125 
126  if ((s->flags & FRAMERATE_FLAG_SCD)) {
127  if (s->score >= 0.0)
128  interpolate_scene_score = s->score;
129  else
130  interpolate_scene_score = s->score = get_scene_score(ctx, s->f0, s->f1);
131  ff_dlog(ctx, "blend_frames() interpolate scene score:%f\n", interpolate_scene_score);
132  }
133  // decide if the shot-change detection allows us to blend two frames
134  if (interpolate_scene_score < s->scene_score) {
135  ThreadData td;
136  td.copy_src1 = s->f0;
137  td.copy_src2 = s->f1;
140 
141  // get work-space for output frame
142  s->work = ff_get_video_buffer(outlink, outlink->w, outlink->h);
143  if (!s->work)
144  return AVERROR(ENOMEM);
145 
146  av_frame_copy_props(s->work, s->f0);
147 
148  ff_dlog(ctx, "blend_frames() INTERPOLATE to create work frame\n");
149  ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(FFMAX(1, outlink->h >> 2), ff_filter_get_nb_threads(ctx)));
150  return 1;
151  }
152  return 0;
153 }
154 
156 {
157  FrameRateContext *s = ctx->priv;
158  int64_t work_pts;
159  int64_t interpolate, interpolate8;
160  int ret;
161 
162  if (!s->f1)
163  return 0;
164  if (!s->f0 && !s->flush)
165  return 0;
166 
167  work_pts = s->start_pts + av_rescale_q(s->n, av_inv_q(s->dest_frame_rate), s->dest_time_base);
168 
169  if (work_pts >= s->pts1 && !s->flush)
170  return 0;
171 
172  if (!s->f0) {
173  av_assert1(s->flush);
174  s->work = s->f1;
175  s->f1 = NULL;
176  } else {
177  if (work_pts >= s->pts1 + s->delta && s->flush)
178  return 0;
179 
180  interpolate = av_rescale(work_pts - s->pts0, s->blend_factor_max, s->delta);
181  interpolate8 = av_rescale(work_pts - s->pts0, 256, s->delta);
182  ff_dlog(ctx, "process_work_frame() interpolate: %"PRId64"/256\n", interpolate8);
183  if (interpolate >= s->blend_factor_max || interpolate8 > s->interp_end) {
184  s->work = av_frame_clone(s->f1);
185  } else if (interpolate <= 0 || interpolate8 < s->interp_start) {
186  s->work = av_frame_clone(s->f0);
187  } else {
188  ret = blend_frames(ctx, interpolate);
189  if (ret < 0)
190  return ret;
191  if (ret == 0)
192  s->work = av_frame_clone(interpolate > (s->blend_factor_max >> 1) ? s->f1 : s->f0);
193  }
194  }
195 
196  if (!s->work)
197  return AVERROR(ENOMEM);
198 
199  s->work->pts = work_pts;
200  s->n++;
201 
202  return 1;
203 }
204 
206 {
207  FrameRateContext *s = ctx->priv;
209  return 0;
210 }
211 
213 {
214  FrameRateContext *s = ctx->priv;
215  av_frame_free(&s->f0);
216  av_frame_free(&s->f1);
217 }
218 
220 {
221  static const enum AVPixelFormat pix_fmts[] = {
232  };
233 
234  AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
235  if (!fmts_list)
236  return AVERROR(ENOMEM);
237  return ff_set_common_formats(ctx, fmts_list);
238 }
239 
240 #define BLEND_FRAME_FUNC(nbits) \
241 static void blend_frames##nbits##_c(BLEND_FUNC_PARAMS) \
242 { \
243  int line, pixel; \
244  uint##nbits##_t *dstw = (uint##nbits##_t *)dst; \
245  uint##nbits##_t *src1w = (uint##nbits##_t *)src1; \
246  uint##nbits##_t *src2w = (uint##nbits##_t *)src2; \
247  int bytes = nbits / 8; \
248  width /= bytes; \
249  src1_linesize /= bytes; \
250  src2_linesize /= bytes; \
251  dst_linesize /= bytes; \
252  for (line = 0; line < height; line++) { \
253  for (pixel = 0; pixel < width; pixel++) \
254  dstw[pixel] = ((src1w[pixel] * factor1) + \
255  (src2w[pixel] * factor2) + half) \
256  >> BLEND_FACTOR_DEPTH(nbits); \
257  src1w += src1_linesize; \
258  src2w += src2_linesize; \
259  dstw += dst_linesize; \
260  } \
261 }
264 
266 {
267  if (s->bitdepth == 8) {
268  s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH(8);
269  s->blend = blend_frames8_c;
270  } else {
271  s->blend_factor_max = 1 << BLEND_FACTOR_DEPTH(16);
272  s->blend = blend_frames16_c;
273  }
274  if (ARCH_X86)
276 }
277 
279 {
280  AVFilterContext *ctx = inlink->dst;
281  FrameRateContext *s = ctx->priv;
282  const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
283  int plane;
284 
285  s->vsub = pix_desc->log2_chroma_h;
286  for (plane = 0; plane < 4; plane++) {
287  s->line_size[plane] = av_image_get_linesize(inlink->format, inlink->w, plane);
288  s->height[plane] = inlink->h >> ((plane == 1 || plane == 2) ? s->vsub : 0);
289  }
290 
291  s->bitdepth = pix_desc->comp[0].depth;
292 
293  s->sad = ff_scene_sad_get_fn(s->bitdepth == 8 ? 8 : 16);
294  if (!s->sad)
295  return AVERROR(EINVAL);
296 
297  s->srce_time_base = inlink->time_base;
298 
300 
301  return 0;
302 }
303 
305 {
306  int ret, status;
307  AVFilterLink *inlink = ctx->inputs[0];
308  AVFilterLink *outlink = ctx->outputs[0];
309  FrameRateContext *s = ctx->priv;
310  AVFrame *inpicref;
311  int64_t pts;
312 
313  FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
314 
315 retry:
316  ret = process_work_frame(ctx);
317  if (ret < 0)
318  return ret;
319  else if (ret == 1)
320  return ff_filter_frame(outlink, s->work);
321 
322  ret = ff_inlink_consume_frame(inlink, &inpicref);
323  if (ret < 0)
324  return ret;
325 
326  if (inpicref) {
327  if (inpicref->interlaced_frame)
328  av_log(ctx, AV_LOG_WARNING, "Interlaced frame found - the output will not be correct.\n");
329 
330  if (inpicref->pts == AV_NOPTS_VALUE) {
331  av_log(ctx, AV_LOG_WARNING, "Ignoring frame without PTS.\n");
332  av_frame_free(&inpicref);
333  }
334  }
335 
336  if (inpicref) {
337  pts = av_rescale_q(inpicref->pts, s->srce_time_base, s->dest_time_base);
338 
339  if (s->f1 && pts == s->pts1) {
340  av_log(ctx, AV_LOG_WARNING, "Ignoring frame with same PTS.\n");
341  av_frame_free(&inpicref);
342  }
343  }
344 
345  if (inpicref) {
346  av_frame_free(&s->f0);
347  s->f0 = s->f1;
348  s->pts0 = s->pts1;
349  s->f1 = inpicref;
350  s->pts1 = pts;
351  s->delta = s->pts1 - s->pts0;
352  s->score = -1.0;
353 
354  if (s->delta < 0) {
355  av_log(ctx, AV_LOG_WARNING, "PTS discontinuity.\n");
356  s->start_pts = s->pts1;
357  s->n = 0;
358  av_frame_free(&s->f0);
359  }
360 
361  if (s->start_pts == AV_NOPTS_VALUE)
362  s->start_pts = s->pts1;
363 
364  goto retry;
365  }
366 
367  if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
368  if (!s->flush) {
369  s->flush = 1;
370  goto retry;
371  }
372  ff_outlink_set_status(outlink, status, pts);
373  return 0;
374  }
375 
376  FF_FILTER_FORWARD_WANTED(outlink, inlink);
377 
378  return FFERROR_NOT_READY;
379 }
380 
381 static int config_output(AVFilterLink *outlink)
382 {
383  AVFilterContext *ctx = outlink->src;
384  FrameRateContext *s = ctx->priv;
385  int exact;
386 
387  ff_dlog(ctx, "config_output()\n");
388 
389  ff_dlog(ctx,
390  "config_output() input time base:%u/%u (%f)\n",
391  ctx->inputs[0]->time_base.num,ctx->inputs[0]->time_base.den,
392  av_q2d(ctx->inputs[0]->time_base));
393 
394  // make sure timebase is small enough to hold the framerate
395 
396  exact = av_reduce(&s->dest_time_base.num, &s->dest_time_base.den,
397  av_gcd((int64_t)s->srce_time_base.num * s->dest_frame_rate.num,
398  (int64_t)s->srce_time_base.den * s->dest_frame_rate.den ),
399  (int64_t)s->srce_time_base.den * s->dest_frame_rate.num, INT_MAX);
400 
401  av_log(ctx, AV_LOG_INFO,
402  "time base:%u/%u -> %u/%u exact:%d\n",
404  s->dest_time_base.num, s->dest_time_base.den, exact);
405  if (!exact) {
406  av_log(ctx, AV_LOG_WARNING, "Timebase conversion is not exact\n");
407  }
408 
409  outlink->frame_rate = s->dest_frame_rate;
410  outlink->time_base = s->dest_time_base;
411 
412  ff_dlog(ctx,
413  "config_output() output time base:%u/%u (%f) w:%d h:%d\n",
414  outlink->time_base.num, outlink->time_base.den,
415  av_q2d(outlink->time_base),
416  outlink->w, outlink->h);
417 
418 
419  av_log(ctx, AV_LOG_INFO, "fps -> fps:%u/%u scene score:%f interpolate start:%d end:%d\n",
421  s->scene_score, s->interp_start, s->interp_end);
422 
423  return 0;
424 }
425 
426 static const AVFilterPad framerate_inputs[] = {
427  {
428  .name = "default",
429  .type = AVMEDIA_TYPE_VIDEO,
430  .config_props = config_input,
431  },
432  { NULL }
433 };
434 
435 static const AVFilterPad framerate_outputs[] = {
436  {
437  .name = "default",
438  .type = AVMEDIA_TYPE_VIDEO,
439  .config_props = config_output,
440  },
441  { NULL }
442 };
443 
445  .name = "framerate",
446  .description = NULL_IF_CONFIG_SMALL("Upsamples or downsamples progressive source between specified frame rates."),
447  .priv_size = sizeof(FrameRateContext),
448  .priv_class = &framerate_class,
449  .init = init,
450  .uninit = uninit,
452  .inputs = framerate_inputs,
453  .outputs = framerate_outputs,
455  .activate = activate,
456 };
int height[4]
height of each plane
Definition: framerate.h:45
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link&#39;s FIFO and update the link&#39;s stats.
Definition: avfilter.c:1491
#define NULL
Definition: coverity.c:32
int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane)
Compute the size of an image line with format pix_fmt and width width for the plane plane...
Definition: imgutils.c:76
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2573
This structure describes decoded (raw) audio or video data.
Definition: frame.h:314
static int process_work_frame(AVFilterContext *ctx)
Definition: vf_framerate.c:155
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_framerate.c:212
AVOption.
Definition: opt.h:248
double scene_score
score that denotes a scene change has happened
Definition: framerate.h:40
double score
scene change score (f0 to f1)
Definition: framerate.h:63
must be printed separately If there s no standard function for printing the type you the WRITE_1D_FUNC_ARGV macro is a very quick way to create one See libavcodec dv_tablegen c for an example The h file This file should the initialization functions should not do and instead of the variable declarations the generated *_tables h file should be included Since that will be generated in the build the path must be i e not Makefile changes To make the automatic table creation work
Definition: tablegen.txt:45
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
Main libavfilter public API header.
ff_scene_sad_fn ff_scene_sad_get_fn(int depth)
Definition: scene_sad.c:59
int64_t pts0
last frame pts in dest_time_base
Definition: framerate.h:60
static double get_scene_score(AVFilterContext *ctx, AVFrame *crnt, AVFrame *next)
Definition: vf_framerate.c:65
int num
Numerator.
Definition: rational.h:59
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:403
return FFERROR_NOT_READY
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
AVFILTER_DEFINE_CLASS(framerate)
int64_t pts1
current frame pts in dest_time_base
Definition: framerate.h:61
int framerate
Definition: h264_levels.c:65
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
Definition: filters.h:189
int interp_end
end of range to apply linear interpolation
Definition: framerate.h:42
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:287
blend_func blend
Definition: framerate.h:68
const char * name
Pad name.
Definition: internal.h:60
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:349
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1093
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:88
AVOptions.
AVRational dest_frame_rate
output frames per second
Definition: framerate.h:38
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:407
static void interpolate(float *out, float v1, float v2, int size)
Definition: twinvq.c:84
int plane
Definition: vf_blend.c:58
static double av_q2d(AVRational a)
Convert an AVRational to a double.
Definition: rational.h:104
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 ff_dlog(a,...)
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:461
int flags
flags affecting frame rate conversion algorithm
Definition: framerate.h:39
#define BLEND_FACTOR_DEPTH(n)
Definition: framerate.h:31
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
Definition: rational.c:35
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:404
#define av_log(a,...)
#define FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink)
Forward the status on an output link to an input link.
Definition: filters.h:199
int line_size[4]
bytes of pixel data per line for each plane
Definition: framerate.h:44
A filter pad used for either input or output.
Definition: internal.h:54
#define av_clipf
Definition: common.h:170
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
Scene SAD functions.
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
Definition: avfilter.c:1446
int width
Definition: frame.h:372
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:588
#define td
Definition: regdef.h:70
int64_t n
output frame counter
Definition: framerate.h:66
#define BLEND_FRAME_FUNC(nbits)
Definition: vf_framerate.c:240
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
uint16_t src1_factor
Definition: vf_framerate.c:91
static __device__ float fabs(float a)
Definition: cuda_runtime.h:182
int interp_start
start of range to apply linear interpolation
Definition: framerate.h:41
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:203
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:115
void * priv
private data for use by the filter
Definition: avfilter.h:356
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:117
const char * arg
Definition: jacosubdec.c:66
simple assert() macros that are a bit more flexible than ISO C assert().
#define FRAMERATE_FLAG_SCD
Definition: vf_framerate.c:47
int64_t av_gcd(int64_t a, int64_t b)
Compute the greatest common divisor of two integer operands.
Definition: mathematics.c:37
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:402
#define FFMAX(a, b)
Definition: common.h:103
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
common internal API header
static int blend_frames(AVFilterContext *ctx, int interpolate)
Definition: vf_framerate.c:120
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:397
int ff_filter_get_nb_threads(AVFilterContext *ctx)
Get number of threads for current filter instance.
Definition: avfilter.c:801
#define av_assert1(cond)
assert() equivalent, that does not lie in speed critical code.
Definition: avassert.h:53
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
Definition: mathematics.c:129
#define FFMIN(a, b)
Definition: common.h:105
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AVFormatContext * ctx
Definition: movenc.c:48
double prev_mafd
previous MAFD (scene detect only)
Definition: framerate.h:52
AVFrame * copy_src1
Definition: vf_framerate.c:90
#define s(width, name)
Definition: cbs_vp9.c:257
AVFilter ff_vf_framerate
Definition: vf_framerate.c:444
AVRational srce_time_base
timebase of source
Definition: framerate.h:48
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:398
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
Definition: frame.c:540
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
void ff_framerate_init_x86(FrameRateContext *s)
#define src1
Definition: h264pred.c:140
#define AV_LOG_INFO
Standard information.
Definition: log.h:205
static const AVFilterPad framerate_outputs[]
Definition: vf_framerate.c:435
static int query_formats(AVFilterContext *ctx)
Definition: vf_framerate.c:219
static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
Definition: vf_framerate.c:94
Used for passing data between threads.
Definition: dsddec.c:67
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:345
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
int blend_factor_max
Definition: framerate.h:54
AVFrame * work
Definition: framerate.h:56
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
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:399
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:72
Filter definition.
Definition: avfilter.h:145
AVRational dest_time_base
timebase of destination
Definition: framerate.h:49
they must not be accessed directly The fifo field contains the frames that are queued in the input for processing by the filter The status_in and status_out fields contains the queued status(EOF or error) of the link
offset must point to AVRational
Definition: opt.h:238
const char * name
Filter name.
Definition: avfilter.h:149
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:396
static av_cold int init(AVFilterContext *ctx)
Definition: vf_framerate.c:205
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:353
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:303
void ff_framerate_init(FrameRateContext *s)
Definition: vf_framerate.c:265
static int64_t pts
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AVFilterInternal * internal
An opaque struct for libavfilter internal use.
Definition: avfilter.h:381
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:400
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:406
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:328
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
Definition: rational.h:159
#define F
Definition: vf_framerate.c:46
uint16_t src2_factor
Definition: vf_framerate.c:91
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
AVFrame * f0
last frame
Definition: framerate.h:58
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
int den
Denominator.
Definition: rational.h:60
avfilter_execute_func * execute
Definition: internal.h:136
FF_FILTER_FORWARD_WANTED(outlink, inlink)
AVFrame * copy_src2
Definition: vf_framerate.c:90
#define V
Definition: vf_framerate.c:45
static av_always_inline int diff(const uint32_t a, const uint32_t b)
ff_scene_sad_fn sad
Sum of the absolute difference function (scene detect only)
Definition: framerate.h:51
static const AVOption framerate_options[]
Definition: vf_framerate.c:49
static int config_input(AVFilterLink *inlink)
Definition: vf_framerate.c:278
A list of supported formats for one end of a filter link.
Definition: formats.h:65
#define OFFSET(x)
Definition: vf_framerate.c:44
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:258
static const AVFilterPad framerate_inputs[]
Definition: vf_framerate.c:426
An instance of a filter.
Definition: avfilter.h:341
int height
Definition: frame.h:372
int64_t start_pts
pts of the first output frame
Definition: framerate.h:65
int flush
1 if the filter is being flushed
Definition: framerate.h:64
const void ** s
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AVFrame * f1
current frame
Definition: framerate.h:59
static int config_output(AVFilterLink *outlink)
Definition: vf_framerate.c:381
AVFilterLink * inlink
Definition: vf_blend.c:57
internal API functions
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
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int64_t delta
pts1 to pts0 delta
Definition: framerate.h:62
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:658
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
static int activate(AVFilterContext *ctx)
Definition: vf_framerate.c:304