FFmpeg  4.2.2
vf_scale_npp.c
Go to the documentation of this file.
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 /**
20  * @file
21  * scale video filter
22  */
23 
24 #include <nppi.h>
25 #include <stdio.h>
26 #include <string.h>
27 
28 #include "libavutil/avstring.h"
29 #include "libavutil/common.h"
30 #include "libavutil/hwcontext.h"
32 #include "libavutil/cuda_check.h"
33 #include "libavutil/internal.h"
34 #include "libavutil/opt.h"
35 #include "libavutil/pixdesc.h"
36 
37 #include "avfilter.h"
38 #include "formats.h"
39 #include "internal.h"
40 #include "scale.h"
41 #include "video.h"
42 
43 #define CHECK_CU(x) FF_CUDA_CHECK_DL(ctx, device_hwctx->internal->cuda_dl, x)
44 
45 static const enum AVPixelFormat supported_formats[] = {
49 };
50 
51 static const enum AVPixelFormat deinterleaved_formats[][2] = {
53 };
54 
55 enum ScaleStage {
60 };
61 
62 typedef struct NPPScaleStageContext {
66 
67  struct {
68  int width;
69  int height;
70  } planes_in[3], planes_out[3];
71 
75 
76 typedef struct NPPScaleContext {
77  const AVClass *class;
78 
82 
83  int shift_width, shift_height;
84 
85  /**
86  * New dimensions. Special values are:
87  * 0 = original width/height
88  * -1 = keep original aspect
89  */
90  int w, h;
91 
92  /**
93  * Output sw format. AV_PIX_FMT_NONE for no conversion.
94  */
96 
97  char *w_expr; ///< width expression string
98  char *h_expr; ///< height expression string
99  char *format_str;
100 
103 
105 {
106  NPPScaleContext *s = ctx->priv;
107  int i;
108 
109  if (!strcmp(s->format_str, "same")) {
110  s->format = AV_PIX_FMT_NONE;
111  } else {
113  if (s->format == AV_PIX_FMT_NONE) {
114  av_log(ctx, AV_LOG_ERROR, "Unrecognized pixel format: %s\n", s->format_str);
115  return AVERROR(EINVAL);
116  }
117  }
118 
119  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
120  s->stages[i].frame = av_frame_alloc();
121  if (!s->stages[i].frame)
122  return AVERROR(ENOMEM);
123  }
124  s->tmp_frame = av_frame_alloc();
125  if (!s->tmp_frame)
126  return AVERROR(ENOMEM);
127 
128  return 0;
129 }
130 
132 {
133  NPPScaleContext *s = ctx->priv;
134  int i;
135 
136  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
137  av_frame_free(&s->stages[i].frame);
139  }
141 }
142 
144 {
145  static const enum AVPixelFormat pixel_formats[] = {
147  };
148  AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats);
149 
150  return ff_set_common_formats(ctx, pix_fmts);
151 }
152 
153 static int init_stage(NPPScaleStageContext *stage, AVBufferRef *device_ctx)
154 {
155  AVBufferRef *out_ref = NULL;
156  AVHWFramesContext *out_ctx;
157  int in_sw, in_sh, out_sw, out_sh;
158  int ret, i;
159 
160  av_pix_fmt_get_chroma_sub_sample(stage->in_fmt, &in_sw, &in_sh);
161  av_pix_fmt_get_chroma_sub_sample(stage->out_fmt, &out_sw, &out_sh);
162  if (!stage->planes_out[0].width) {
163  stage->planes_out[0].width = stage->planes_in[0].width;
164  stage->planes_out[0].height = stage->planes_in[0].height;
165  }
166 
167  for (i = 1; i < FF_ARRAY_ELEMS(stage->planes_in); i++) {
168  stage->planes_in[i].width = stage->planes_in[0].width >> in_sw;
169  stage->planes_in[i].height = stage->planes_in[0].height >> in_sh;
170  stage->planes_out[i].width = stage->planes_out[0].width >> out_sw;
171  stage->planes_out[i].height = stage->planes_out[0].height >> out_sh;
172  }
173 
174  out_ref = av_hwframe_ctx_alloc(device_ctx);
175  if (!out_ref)
176  return AVERROR(ENOMEM);
177  out_ctx = (AVHWFramesContext*)out_ref->data;
178 
179  out_ctx->format = AV_PIX_FMT_CUDA;
180  out_ctx->sw_format = stage->out_fmt;
181  out_ctx->width = FFALIGN(stage->planes_out[0].width, 32);
182  out_ctx->height = FFALIGN(stage->planes_out[0].height, 32);
183 
184  ret = av_hwframe_ctx_init(out_ref);
185  if (ret < 0)
186  goto fail;
187 
188  av_frame_unref(stage->frame);
189  ret = av_hwframe_get_buffer(out_ref, stage->frame, 0);
190  if (ret < 0)
191  goto fail;
192 
193  stage->frame->width = stage->planes_out[0].width;
194  stage->frame->height = stage->planes_out[0].height;
195 
196  av_buffer_unref(&stage->frames_ctx);
197  stage->frames_ctx = out_ref;
198 
199  return 0;
200 fail:
201  av_buffer_unref(&out_ref);
202  return ret;
203 }
204 
206 {
207  int i;
208 
209  for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
210  if (supported_formats[i] == fmt)
211  return 1;
212  return 0;
213 }
214 
216 {
218  int i, planes;
219 
220  planes = av_pix_fmt_count_planes(fmt);
221  if (planes == desc->nb_components)
222  return fmt;
223  for (i = 0; i < FF_ARRAY_ELEMS(deinterleaved_formats); i++)
224  if (deinterleaved_formats[i][0] == fmt)
225  return deinterleaved_formats[i][1];
226  return AV_PIX_FMT_NONE;
227 }
228 
229 static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height,
230  int out_width, int out_height)
231 {
232  NPPScaleContext *s = ctx->priv;
233 
234  AVHWFramesContext *in_frames_ctx;
235 
236  enum AVPixelFormat in_format;
237  enum AVPixelFormat out_format;
238  enum AVPixelFormat in_deinterleaved_format;
239  enum AVPixelFormat out_deinterleaved_format;
240 
241  int i, ret, last_stage = -1;
242 
243  /* check that we have a hw context */
244  if (!ctx->inputs[0]->hw_frames_ctx) {
245  av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
246  return AVERROR(EINVAL);
247  }
248  in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
249  in_format = in_frames_ctx->sw_format;
250  out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format;
251 
252  if (!format_is_supported(in_format)) {
253  av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n",
254  av_get_pix_fmt_name(in_format));
255  return AVERROR(ENOSYS);
256  }
257  if (!format_is_supported(out_format)) {
258  av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n",
259  av_get_pix_fmt_name(out_format));
260  return AVERROR(ENOSYS);
261  }
262 
263  in_deinterleaved_format = get_deinterleaved_format(in_format);
264  out_deinterleaved_format = get_deinterleaved_format(out_format);
265  if (in_deinterleaved_format == AV_PIX_FMT_NONE ||
266  out_deinterleaved_format == AV_PIX_FMT_NONE)
267  return AVERROR_BUG;
268 
269  /* figure out which stages need to be done */
270  if (in_width != out_width || in_height != out_height ||
271  in_deinterleaved_format != out_deinterleaved_format) {
273 
274  if (s->interp_algo == NPPI_INTER_SUPER &&
275  (out_width > in_width && out_height > in_height)) {
276  s->interp_algo = NPPI_INTER_LANCZOS;
277  av_log(ctx, AV_LOG_WARNING, "super-sampling not supported for output dimensions, using lanczos instead.\n");
278  }
279  if (s->interp_algo == NPPI_INTER_SUPER &&
280  !(out_width < in_width && out_height < in_height)) {
281  s->interp_algo = NPPI_INTER_CUBIC;
282  av_log(ctx, AV_LOG_WARNING, "super-sampling not supported for output dimensions, using cubic instead.\n");
283  }
284  }
285 
286  if (!s->stages[STAGE_RESIZE].stage_needed && in_format == out_format)
287  s->passthrough = 1;
288 
289  if (!s->passthrough) {
290  if (in_format != in_deinterleaved_format)
292  if (out_format != out_deinterleaved_format)
294  }
295 
296  s->stages[STAGE_DEINTERLEAVE].in_fmt = in_format;
297  s->stages[STAGE_DEINTERLEAVE].out_fmt = in_deinterleaved_format;
298  s->stages[STAGE_DEINTERLEAVE].planes_in[0].width = in_width;
299  s->stages[STAGE_DEINTERLEAVE].planes_in[0].height = in_height;
300 
301  s->stages[STAGE_RESIZE].in_fmt = in_deinterleaved_format;
302  s->stages[STAGE_RESIZE].out_fmt = out_deinterleaved_format;
303  s->stages[STAGE_RESIZE].planes_in[0].width = in_width;
304  s->stages[STAGE_RESIZE].planes_in[0].height = in_height;
305  s->stages[STAGE_RESIZE].planes_out[0].width = out_width;
306  s->stages[STAGE_RESIZE].planes_out[0].height = out_height;
307 
308  s->stages[STAGE_INTERLEAVE].in_fmt = out_deinterleaved_format;
309  s->stages[STAGE_INTERLEAVE].out_fmt = out_format;
310  s->stages[STAGE_INTERLEAVE].planes_in[0].width = out_width;
311  s->stages[STAGE_INTERLEAVE].planes_in[0].height = out_height;
312 
313  /* init the hardware contexts */
314  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
315  if (!s->stages[i].stage_needed)
316  continue;
317 
318  ret = init_stage(&s->stages[i], in_frames_ctx->device_ref);
319  if (ret < 0)
320  return ret;
321 
322  last_stage = i;
323  }
324 
325  if (last_stage >= 0)
326  ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage].frames_ctx);
327  else
329 
330  if (!ctx->outputs[0]->hw_frames_ctx)
331  return AVERROR(ENOMEM);
332 
333  return 0;
334 }
335 
337 {
338  AVFilterContext *ctx = outlink->src;
339  AVFilterLink *inlink = outlink->src->inputs[0];
340  NPPScaleContext *s = ctx->priv;
341  int w, h;
342  int ret;
343 
344  if ((ret = ff_scale_eval_dimensions(s,
345  s->w_expr, s->h_expr,
346  inlink, outlink,
347  &w, &h)) < 0)
348  goto fail;
349 
350  if (((int64_t)h * inlink->w) > INT_MAX ||
351  ((int64_t)w * inlink->h) > INT_MAX)
352  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
353 
354  outlink->w = w;
355  outlink->h = h;
356 
357  ret = init_processing_chain(ctx, inlink->w, inlink->h, w, h);
358  if (ret < 0)
359  return ret;
360 
361  av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n",
362  inlink->w, inlink->h, outlink->w, outlink->h);
363 
364  if (inlink->sample_aspect_ratio.num)
365  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
366  outlink->w*inlink->h},
367  inlink->sample_aspect_ratio);
368  else
369  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
370 
371  return 0;
372 
373 fail:
374  return ret;
375 }
376 
378  AVFrame *out, AVFrame *in)
379 {
380  AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
381  NppStatus err;
382 
383  switch (in_frames_ctx->sw_format) {
384  case AV_PIX_FMT_NV12:
385  err = nppiYCbCr420_8u_P2P3R(in->data[0], in->linesize[0],
386  in->data[1], in->linesize[1],
387  out->data, out->linesize,
388  (NppiSize){ in->width, in->height });
389  break;
390  default:
391  return AVERROR_BUG;
392  }
393  if (err != NPP_SUCCESS) {
394  av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err);
395  return AVERROR_UNKNOWN;
396  }
397 
398  return 0;
399 }
400 
402  AVFrame *out, AVFrame *in)
403 {
404  NPPScaleContext *s = ctx->priv;
405  NppStatus err;
406  int i;
407 
408  for (i = 0; i < FF_ARRAY_ELEMS(stage->planes_in) && i < FF_ARRAY_ELEMS(in->data) && in->data[i]; i++) {
409  int iw = stage->planes_in[i].width;
410  int ih = stage->planes_in[i].height;
411  int ow = stage->planes_out[i].width;
412  int oh = stage->planes_out[i].height;
413 
414  err = nppiResizeSqrPixel_8u_C1R(in->data[i], (NppiSize){ iw, ih },
415  in->linesize[i], (NppiRect){ 0, 0, iw, ih },
416  out->data[i], out->linesize[i],
417  (NppiRect){ 0, 0, ow, oh },
418  (double)ow / iw, (double)oh / ih,
419  0.0, 0.0, s->interp_algo);
420  if (err != NPP_SUCCESS) {
421  av_log(ctx, AV_LOG_ERROR, "NPP resize error: %d\n", err);
422  return AVERROR_UNKNOWN;
423  }
424  }
425 
426  return 0;
427 }
428 
430  AVFrame *out, AVFrame *in)
431 {
432  AVHWFramesContext *out_frames_ctx = (AVHWFramesContext*)out->hw_frames_ctx->data;
433  NppStatus err;
434 
435  switch (out_frames_ctx->sw_format) {
436  case AV_PIX_FMT_NV12:
437  err = nppiYCbCr420_8u_P3P2R((const uint8_t**)in->data,
438  in->linesize,
439  out->data[0], out->linesize[0],
440  out->data[1], out->linesize[1],
441  (NppiSize){ in->width, in->height });
442  break;
443  default:
444  return AVERROR_BUG;
445  }
446  if (err != NPP_SUCCESS) {
447  av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err);
448  return AVERROR_UNKNOWN;
449  }
450 
451  return 0;
452 }
453 
455  AVFrame *out, AVFrame *in) = {
459 };
460 
462 {
463  NPPScaleContext *s = ctx->priv;
464  AVFrame *src = in;
465  int i, ret, last_stage = -1;
466 
467  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
468  if (!s->stages[i].stage_needed)
469  continue;
470 
471  ret = nppscale_process[i](ctx, &s->stages[i], s->stages[i].frame, src);
472  if (ret < 0)
473  return ret;
474 
475  src = s->stages[i].frame;
476  last_stage = i;
477  }
478 
479  if (last_stage < 0)
480  return AVERROR_BUG;
481  ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0);
482  if (ret < 0)
483  return ret;
484 
485  av_frame_move_ref(out, src);
486  av_frame_move_ref(src, s->tmp_frame);
487 
488  ret = av_frame_copy_props(out, in);
489  if (ret < 0)
490  return ret;
491 
492  return 0;
493 }
494 
496 {
497  AVFilterContext *ctx = link->dst;
498  NPPScaleContext *s = ctx->priv;
499  AVFilterLink *outlink = ctx->outputs[0];
501  AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
502 
503  AVFrame *out = NULL;
504  CUcontext dummy;
505  int ret = 0;
506 
507  if (s->passthrough)
508  return ff_filter_frame(outlink, in);
509 
510  out = av_frame_alloc();
511  if (!out) {
512  ret = AVERROR(ENOMEM);
513  goto fail;
514  }
515 
516  ret = CHECK_CU(device_hwctx->internal->cuda_dl->cuCtxPushCurrent(device_hwctx->cuda_ctx));
517  if (ret < 0)
518  goto fail;
519 
520  ret = nppscale_scale(ctx, out, in);
521 
522  CHECK_CU(device_hwctx->internal->cuda_dl->cuCtxPopCurrent(&dummy));
523  if (ret < 0)
524  goto fail;
525 
526  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
527  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
528  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
529  INT_MAX);
530 
531  av_frame_free(&in);
532  return ff_filter_frame(outlink, out);
533 fail:
534  av_frame_free(&in);
535  av_frame_free(&out);
536  return ret;
537 }
538 
539 #define OFFSET(x) offsetof(NPPScaleContext, x)
540 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
541 static const AVOption options[] = {
542  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
543  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
544  { "format", "Output pixel format", OFFSET(format_str), AV_OPT_TYPE_STRING, { .str = "same" }, .flags = FLAGS },
545 
546  { "interp_algo", "Interpolation algorithm used for resizing", OFFSET(interp_algo), AV_OPT_TYPE_INT, { .i64 = NPPI_INTER_CUBIC }, 0, INT_MAX, FLAGS, "interp_algo" },
547  { "nn", "nearest neighbour", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_NN }, 0, 0, FLAGS, "interp_algo" },
548  { "linear", "linear", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LINEAR }, 0, 0, FLAGS, "interp_algo" },
549  { "cubic", "cubic", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC }, 0, 0, FLAGS, "interp_algo" },
550  { "cubic2p_bspline", "2-parameter cubic (B=1, C=0)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_BSPLINE }, 0, 0, FLAGS, "interp_algo" },
551  { "cubic2p_catmullrom", "2-parameter cubic (B=0, C=1/2)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_CATMULLROM }, 0, 0, FLAGS, "interp_algo" },
552  { "cubic2p_b05c03", "2-parameter cubic (B=1/2, C=3/10)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_B05C03 }, 0, 0, FLAGS, "interp_algo" },
553  { "super", "supersampling", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_SUPER }, 0, 0, FLAGS, "interp_algo" },
554  { "lanczos", "Lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LANCZOS }, 0, 0, FLAGS, "interp_algo" },
555  { NULL },
556 };
557 
558 static const AVClass nppscale_class = {
559  .class_name = "nppscale",
560  .item_name = av_default_item_name,
561  .option = options,
562  .version = LIBAVUTIL_VERSION_INT,
563 };
564 
565 static const AVFilterPad nppscale_inputs[] = {
566  {
567  .name = "default",
568  .type = AVMEDIA_TYPE_VIDEO,
569  .filter_frame = nppscale_filter_frame,
570  },
571  { NULL }
572 };
573 
574 static const AVFilterPad nppscale_outputs[] = {
575  {
576  .name = "default",
577  .type = AVMEDIA_TYPE_VIDEO,
578  .config_props = nppscale_config_props,
579  },
580  { NULL }
581 };
582 
584  .name = "scale_npp",
585  .description = NULL_IF_CONFIG_SMALL("NVIDIA Performance Primitives video "
586  "scaling and format conversion"),
587 
588  .init = nppscale_init,
589  .uninit = nppscale_uninit,
590  .query_formats = nppscale_query_formats,
591 
592  .priv_size = sizeof(NPPScaleContext),
593  .priv_class = &nppscale_class,
594 
595  .inputs = nppscale_inputs,
596  .outputs = nppscale_outputs,
597 
598  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
599 };
#define NULL
Definition: coverity.c:32
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
Definition: internal.h:385
static const struct @314 planes[]
int ff_scale_eval_dimensions(void *log_ctx, const char *w_expr, const char *h_expr, AVFilterLink *inlink, AVFilterLink *outlink, int *ret_w, int *ret_h)
Definition: scale.c:106
static const char * format[]
Definition: af_aiir.c:338
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:125
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
ScaleStage
Definition: vf_scale_npp.c:55
AVOption.
Definition: opt.h:246
const char * fmt
Definition: avisynth_c.h:861
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2562
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:68
int num
Numerator.
Definition: rational.h:59
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
AVBufferRef * frames_ctx
Definition: vf_scale_npp.c:72
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:228
static int nppscale_config_props(AVFilterLink *outlink)
Definition: vf_scale_npp.c:336
enum AVPixelFormat out_fmt
Definition: vf_scale_npp.c:65
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:208
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:582
static enum AVPixelFormat get_deinterleaved_format(enum AVPixelFormat fmt)
Definition: vf_scale_npp.c:215
#define src
Definition: vp8dsp.c:254
static int nppscale_resize(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:401
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
enum AVPixelFormat format
Output sw format.
Definition: vf_scale_npp.c:95
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:634
const char * name
Pad name.
Definition: internal.h:60
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
AVFilterLink ** inputs
array of pointers to input links
Definition: avfilter.h:346
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
char * w_expr
width expression string
Definition: vf_scale_npp.c:97
static const AVFilterPad nppscale_inputs[]
Definition: vf_scale_npp.c:565
uint8_t
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:189
enum AVPixelFormat in_fmt
Definition: vf_scale_npp.c:64
AVOptions.
static void nppscale_uninit(AVFilterContext *ctx)
Definition: vf_scale_npp.c:131
int w
New dimensions.
Definition: vf_scale_npp.c:90
AVFilter ff_vf_scale_npp
Definition: vf_scale_npp.c:583
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:91
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
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
static const AVOption options[]
Definition: vf_scale_npp.c:541
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
A filter pad used for either input or output.
Definition: internal.h:54
static int nppscale_init(AVFilterContext *ctx)
Definition: vf_scale_npp.c:104
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
int width
Definition: frame.h:353
#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
static int nppscale_deinterleave(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:377
#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
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: pixdesc.c:2550
#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
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:89
static int nppscale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:461
static int init_stage(NPPScaleStageContext *stage, AVBufferRef *device_ctx)
Definition: vf_scale_npp.c:153
int av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
Definition: hwcontext.c:329
static int nppscale_interleave(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:429
int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
Allocate a new frame attached to the given AVHWFramesContext.
Definition: hwcontext.c:465
#define fail()
Definition: checkasm.h:120
common internal API header
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
AVHWDeviceContext * device_ctx
The parent AVHWDeviceContext.
Definition: hwcontext.h:148
#define CHECK_CU(x)
Definition: vf_scale_npp.c:43
uint8_t w
Definition: llviddspenc.c:38
static const AVClass nppscale_class
Definition: vf_scale_npp.c:558
AVFormatContext * ctx
Definition: movenc.c:48
#define s(width, name)
Definition: cbs_vp9.c:257
static enum AVPixelFormat supported_formats[]
Definition: vf_scale_npp.c:45
FFmpeg internal API for CUDA.
int dummy
Definition: motion.c:64
#define OFFSET(x)
Definition: vf_scale_npp.c:539
static int format_is_supported(enum AVPixelFormat fmt)
Definition: vf_scale_npp.c:205
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
struct NPPScaleStageContext::@241 planes_out[3]
if(ret< 0)
Definition: vf_mcdeint.c:279
HW acceleration through CUDA.
Definition: pixfmt.h:235
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
#define FF_ARRAY_ELEMS(a)
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
uint8_t * data
The data buffer.
Definition: buffer.h:89
AVRational sample_aspect_ratio
Sample aspect ratio for the video frame, 0/1 if unknown/unspecified.
Definition: frame.h:383
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
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
This struct is allocated as AVHWDeviceContext.hwctx.
Describe the class of an AVClass context structure.
Definition: log.h:67
Filter definition.
Definition: avfilter.h:144
Rational number (pair of numerator and denominator).
Definition: rational.h:58
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:123
AVFrame * tmp_frame
Definition: vf_scale_npp.c:80
static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height, int out_width, int out_height)
Definition: vf_scale_npp.c:229
const char * name
Filter name.
Definition: avfilter.h:148
static int(*const nppscale_process[])(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:454
static int nppscale_query_formats(AVFilterContext *ctx)
Definition: vf_scale_npp.c:143
#define FLAGS
Definition: vf_scale_npp.c:540
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
struct NPPScaleStageContext::@241 planes_in[3]
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:140
static const AVFilterPad nppscale_outputs[]
Definition: vf_scale_npp.c:574
A reference to a data buffer.
Definition: buffer.h:81
int
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
common internal and external API header
NPPScaleStageContext stages[STAGE_NB]
Definition: vf_scale_npp.c:79
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:243
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
int den
Denominator.
Definition: rational.h:60
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
static int nppscale_filter_frame(AVFilterLink *link, AVFrame *in)
Definition: vf_scale_npp.c:495
A list of supported formats for one end of a filter link.
Definition: formats.h:64
static enum AVPixelFormat deinterleaved_formats[][2]
Definition: vf_scale_npp.c:51
An instance of a filter.
Definition: avfilter.h:338
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int height
Definition: frame.h:353
FILE * out
Definition: movenc.c:54
enum AVPixelFormat av_get_pix_fmt(const char *name)
Return the pixel format corresponding to name.
Definition: pixdesc.c:2450
const char * av_get_pix_fmt_name(enum AVPixelFormat pix_fmt)
Return the short name for a pixel format, NULL in case pix_fmt is unknown.
Definition: pixdesc.c:2438
internal API functions
char * h_expr
height expression string
Definition: vf_scale_npp.c:98
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:221
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654