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vf_scale_npp.c
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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/internal.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 
36 #include "avfilter.h"
37 #include "formats.h"
38 #include "internal.h"
39 #include "scale.h"
40 #include "video.h"
41 
42 static const enum AVPixelFormat supported_formats[] = {
46 };
47 
48 static const enum AVPixelFormat deinterleaved_formats[][2] = {
50 };
51 
52 enum ScaleStage {
57 };
58 
59 typedef struct NPPScaleStageContext {
63 
64  struct {
65  int width;
66  int height;
67  } planes_in[3], planes_out[3];
68 
72 
73 typedef struct NPPScaleContext {
74  const AVClass *class;
75 
79 
81 
82  /**
83  * New dimensions. Special values are:
84  * 0 = original width/height
85  * -1 = keep original aspect
86  */
87  int w, h;
88 
89  /**
90  * Output sw format. AV_PIX_FMT_NONE for no conversion.
91  */
93 
94  char *w_expr; ///< width expression string
95  char *h_expr; ///< height expression string
96  char *format_str;
97 
100 
102 {
103  NPPScaleContext *s = ctx->priv;
104  int i;
105 
106  if (!strcmp(s->format_str, "same")) {
107  s->format = AV_PIX_FMT_NONE;
108  } else {
110  if (s->format == AV_PIX_FMT_NONE) {
111  av_log(ctx, AV_LOG_ERROR, "Unrecognized pixel format: %s\n", s->format_str);
112  return AVERROR(EINVAL);
113  }
114  }
115 
116  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
117  s->stages[i].frame = av_frame_alloc();
118  if (!s->stages[i].frame)
119  return AVERROR(ENOMEM);
120  }
121  s->tmp_frame = av_frame_alloc();
122  if (!s->tmp_frame)
123  return AVERROR(ENOMEM);
124 
125  return 0;
126 }
127 
129 {
130  NPPScaleContext *s = ctx->priv;
131  int i;
132 
133  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
134  av_frame_free(&s->stages[i].frame);
136  }
138 }
139 
141 {
142  static const enum AVPixelFormat pixel_formats[] = {
144  };
145  AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats);
146 
147  return ff_set_common_formats(ctx, pix_fmts);
148 }
149 
150 static int init_stage(NPPScaleStageContext *stage, AVBufferRef *device_ctx)
151 {
152  AVBufferRef *out_ref = NULL;
153  AVHWFramesContext *out_ctx;
154  int in_sw, in_sh, out_sw, out_sh;
155  int ret, i;
156 
157  av_pix_fmt_get_chroma_sub_sample(stage->in_fmt, &in_sw, &in_sh);
158  av_pix_fmt_get_chroma_sub_sample(stage->out_fmt, &out_sw, &out_sh);
159  if (!stage->planes_out[0].width) {
160  stage->planes_out[0].width = stage->planes_in[0].width;
161  stage->planes_out[0].height = stage->planes_in[0].height;
162  }
163 
164  for (i = 1; i < FF_ARRAY_ELEMS(stage->planes_in); i++) {
165  stage->planes_in[i].width = stage->planes_in[0].width >> in_sw;
166  stage->planes_in[i].height = stage->planes_in[0].height >> in_sh;
167  stage->planes_out[i].width = stage->planes_out[0].width >> out_sw;
168  stage->planes_out[i].height = stage->planes_out[0].height >> out_sh;
169  }
170 
171  out_ref = av_hwframe_ctx_alloc(device_ctx);
172  if (!out_ref)
173  return AVERROR(ENOMEM);
174  out_ctx = (AVHWFramesContext*)out_ref->data;
175 
176  out_ctx->format = AV_PIX_FMT_CUDA;
177  out_ctx->sw_format = stage->out_fmt;
178  out_ctx->width = FFALIGN(stage->planes_out[0].width, 32);
179  out_ctx->height = FFALIGN(stage->planes_out[0].height, 32);
180 
181  ret = av_hwframe_ctx_init(out_ref);
182  if (ret < 0)
183  goto fail;
184 
185  av_frame_unref(stage->frame);
186  ret = av_hwframe_get_buffer(out_ref, stage->frame, 0);
187  if (ret < 0)
188  goto fail;
189 
190  stage->frame->width = stage->planes_out[0].width;
191  stage->frame->height = stage->planes_out[0].height;
192 
193  av_buffer_unref(&stage->frames_ctx);
194  stage->frames_ctx = out_ref;
195 
196  return 0;
197 fail:
198  av_buffer_unref(&out_ref);
199  return ret;
200 }
201 
203 {
204  int i;
205 
206  for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
207  if (supported_formats[i] == fmt)
208  return 1;
209  return 0;
210 }
211 
213 {
215  int i, planes;
216 
217  planes = av_pix_fmt_count_planes(fmt);
218  if (planes == desc->nb_components)
219  return fmt;
220  for (i = 0; i < FF_ARRAY_ELEMS(deinterleaved_formats); i++)
221  if (deinterleaved_formats[i][0] == fmt)
222  return deinterleaved_formats[i][1];
223  return AV_PIX_FMT_NONE;
224 }
225 
226 static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height,
227  int out_width, int out_height)
228 {
229  NPPScaleContext *s = ctx->priv;
230 
231  AVHWFramesContext *in_frames_ctx;
232 
233  enum AVPixelFormat in_format;
234  enum AVPixelFormat out_format;
235  enum AVPixelFormat in_deinterleaved_format;
236  enum AVPixelFormat out_deinterleaved_format;
237 
238  int i, ret, last_stage = -1;
239 
240  /* check that we have a hw context */
241  if (!ctx->inputs[0]->hw_frames_ctx) {
242  av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
243  return AVERROR(EINVAL);
244  }
245  in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
246  in_format = in_frames_ctx->sw_format;
247  out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format;
248 
249  if (!format_is_supported(in_format)) {
250  av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n",
251  av_get_pix_fmt_name(in_format));
252  return AVERROR(ENOSYS);
253  }
254  if (!format_is_supported(out_format)) {
255  av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n",
256  av_get_pix_fmt_name(out_format));
257  return AVERROR(ENOSYS);
258  }
259 
260  in_deinterleaved_format = get_deinterleaved_format(in_format);
261  out_deinterleaved_format = get_deinterleaved_format(out_format);
262  if (in_deinterleaved_format == AV_PIX_FMT_NONE ||
263  out_deinterleaved_format == AV_PIX_FMT_NONE)
264  return AVERROR_BUG;
265 
266  /* figure out which stages need to be done */
267  if (in_width != out_width || in_height != out_height ||
268  in_deinterleaved_format != out_deinterleaved_format) {
270 
271  if (s->interp_algo == NPPI_INTER_SUPER &&
272  (out_width > in_width && out_height > in_height)) {
273  s->interp_algo = NPPI_INTER_LANCZOS;
274  av_log(ctx, AV_LOG_WARNING, "super-sampling not supported for output dimensions, using lanczos instead.\n");
275  }
276  if (s->interp_algo == NPPI_INTER_SUPER &&
277  !(out_width < in_width && out_height < in_height)) {
278  s->interp_algo = NPPI_INTER_CUBIC;
279  av_log(ctx, AV_LOG_WARNING, "super-sampling not supported for output dimensions, using cubic instead.\n");
280  }
281  }
282 
283  if (!s->stages[STAGE_RESIZE].stage_needed && in_format == out_format)
284  s->passthrough = 1;
285 
286  if (!s->passthrough) {
287  if (in_format != in_deinterleaved_format)
289  if (out_format != out_deinterleaved_format)
291  }
292 
293  s->stages[STAGE_DEINTERLEAVE].in_fmt = in_format;
294  s->stages[STAGE_DEINTERLEAVE].out_fmt = in_deinterleaved_format;
295  s->stages[STAGE_DEINTERLEAVE].planes_in[0].width = in_width;
296  s->stages[STAGE_DEINTERLEAVE].planes_in[0].height = in_height;
297 
298  s->stages[STAGE_RESIZE].in_fmt = in_deinterleaved_format;
299  s->stages[STAGE_RESIZE].out_fmt = out_deinterleaved_format;
300  s->stages[STAGE_RESIZE].planes_in[0].width = in_width;
301  s->stages[STAGE_RESIZE].planes_in[0].height = in_height;
302  s->stages[STAGE_RESIZE].planes_out[0].width = out_width;
303  s->stages[STAGE_RESIZE].planes_out[0].height = out_height;
304 
305  s->stages[STAGE_INTERLEAVE].in_fmt = out_deinterleaved_format;
306  s->stages[STAGE_INTERLEAVE].out_fmt = out_format;
307  s->stages[STAGE_INTERLEAVE].planes_in[0].width = out_width;
308  s->stages[STAGE_INTERLEAVE].planes_in[0].height = out_height;
309 
310  /* init the hardware contexts */
311  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
312  if (!s->stages[i].stage_needed)
313  continue;
314 
315  ret = init_stage(&s->stages[i], in_frames_ctx->device_ref);
316  if (ret < 0)
317  return ret;
318 
319  last_stage = i;
320  }
321 
322  if (last_stage >= 0)
323  ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage].frames_ctx);
324  else
326 
327  if (!ctx->outputs[0]->hw_frames_ctx)
328  return AVERROR(ENOMEM);
329 
330  return 0;
331 }
332 
334 {
335  AVFilterContext *ctx = outlink->src;
336  AVFilterLink *inlink = outlink->src->inputs[0];
337  NPPScaleContext *s = ctx->priv;
338  int w, h;
339  int ret;
340 
341  if ((ret = ff_scale_eval_dimensions(s,
342  s->w_expr, s->h_expr,
343  inlink, outlink,
344  &w, &h)) < 0)
345  goto fail;
346 
347  if (((int64_t)h * inlink->w) > INT_MAX ||
348  ((int64_t)w * inlink->h) > INT_MAX)
349  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
350 
351  outlink->w = w;
352  outlink->h = h;
353 
354  ret = init_processing_chain(ctx, inlink->w, inlink->h, w, h);
355  if (ret < 0)
356  return ret;
357 
358  av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n",
359  inlink->w, inlink->h, outlink->w, outlink->h);
360 
361  if (inlink->sample_aspect_ratio.num)
362  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
363  outlink->w*inlink->h},
364  inlink->sample_aspect_ratio);
365  else
366  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
367 
368  return 0;
369 
370 fail:
371  return ret;
372 }
373 
375  AVFrame *out, AVFrame *in)
376 {
377  AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
378  NppStatus err;
379 
380  switch (in_frames_ctx->sw_format) {
381  case AV_PIX_FMT_NV12:
382  err = nppiYCbCr420_8u_P2P3R(in->data[0], in->linesize[0],
383  in->data[1], in->linesize[1],
384  out->data, out->linesize,
385  (NppiSize){ in->width, in->height });
386  break;
387  default:
388  return AVERROR_BUG;
389  }
390  if (err != NPP_SUCCESS) {
391  av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err);
392  return AVERROR_UNKNOWN;
393  }
394 
395  return 0;
396 }
397 
399  AVFrame *out, AVFrame *in)
400 {
401  NPPScaleContext *s = ctx->priv;
402  NppStatus err;
403  int i;
404 
405  for (i = 0; i < FF_ARRAY_ELEMS(stage->planes_in) && i < FF_ARRAY_ELEMS(in->data) && in->data[i]; i++) {
406  int iw = stage->planes_in[i].width;
407  int ih = stage->planes_in[i].height;
408  int ow = stage->planes_out[i].width;
409  int oh = stage->planes_out[i].height;
410 
411  err = nppiResizeSqrPixel_8u_C1R(in->data[i], (NppiSize){ iw, ih },
412  in->linesize[i], (NppiRect){ 0, 0, iw, ih },
413  out->data[i], out->linesize[i],
414  (NppiRect){ 0, 0, ow, oh },
415  (double)ow / iw, (double)oh / ih,
416  0.0, 0.0, s->interp_algo);
417  if (err != NPP_SUCCESS) {
418  av_log(ctx, AV_LOG_ERROR, "NPP resize error: %d\n", err);
419  return AVERROR_UNKNOWN;
420  }
421  }
422 
423  return 0;
424 }
425 
427  AVFrame *out, AVFrame *in)
428 {
429  AVHWFramesContext *out_frames_ctx = (AVHWFramesContext*)out->hw_frames_ctx->data;
430  NppStatus err;
431 
432  switch (out_frames_ctx->sw_format) {
433  case AV_PIX_FMT_NV12:
434  err = nppiYCbCr420_8u_P3P2R((const uint8_t**)in->data,
435  in->linesize,
436  out->data[0], out->linesize[0],
437  out->data[1], out->linesize[1],
438  (NppiSize){ in->width, in->height });
439  break;
440  default:
441  return AVERROR_BUG;
442  }
443  if (err != NPP_SUCCESS) {
444  av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err);
445  return AVERROR_UNKNOWN;
446  }
447 
448  return 0;
449 }
450 
452  AVFrame *out, AVFrame *in) = {
456 };
457 
459 {
460  NPPScaleContext *s = ctx->priv;
461  AVFrame *src = in;
462  int i, ret, last_stage = -1;
463 
464  for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) {
465  if (!s->stages[i].stage_needed)
466  continue;
467 
468  ret = nppscale_process[i](ctx, &s->stages[i], s->stages[i].frame, src);
469  if (ret < 0)
470  return ret;
471 
472  src = s->stages[i].frame;
473  last_stage = i;
474  }
475 
476  if (last_stage < 0)
477  return AVERROR_BUG;
478  ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0);
479  if (ret < 0)
480  return ret;
481 
482  av_frame_move_ref(out, src);
483  av_frame_move_ref(src, s->tmp_frame);
484 
485  ret = av_frame_copy_props(out, in);
486  if (ret < 0)
487  return ret;
488 
489  return 0;
490 }
491 
493 {
494  AVFilterContext *ctx = link->dst;
495  NPPScaleContext *s = ctx->priv;
496  AVFilterLink *outlink = ctx->outputs[0];
497  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)outlink->hw_frames_ctx->data;
498  AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
499 
500  AVFrame *out = NULL;
501  CUresult err;
503  int ret = 0;
504 
505  if (s->passthrough)
506  return ff_filter_frame(outlink, in);
507 
508  out = av_frame_alloc();
509  if (!out) {
510  ret = AVERROR(ENOMEM);
511  goto fail;
512  }
513 
514  err = device_hwctx->internal->cuda_dl->cuCtxPushCurrent(device_hwctx->cuda_ctx);
515  if (err != CUDA_SUCCESS) {
516  ret = AVERROR_UNKNOWN;
517  goto fail;
518  }
519 
520  ret = nppscale_scale(ctx, out, in);
521 
522  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
const char * s
Definition: avisynth_c.h:768
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
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:2419
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
ScaleStage
Definition: vf_scale_npp.c:52
AVOption.
Definition: opt.h:246
const char * fmt
Definition: avisynth_c.h:769
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
#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:2459
#define LIBAVUTIL_VERSION_INT
Definition: version.h:86
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:60
int num
Numerator.
Definition: rational.h:59
AVBufferRef * frames_ctx
Definition: vf_scale_npp.c:69
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:226
static int nppscale_config_props(AVFilterLink *outlink)
Definition: vf_scale_npp.c:333
enum AVPixelFormat out_fmt
Definition: vf_scale_npp.c:62
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:206
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:531
static enum AVPixelFormat get_deinterleaved_format(enum AVPixelFormat fmt)
Definition: vf_scale_npp.c:212
#define src
Definition: vp8dsp.c:254
static int nppscale_resize(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:398
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:92
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:538
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:1151
char * w_expr
width expression string
Definition: vf_scale_npp.c:94
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:150
enum AVPixelFormat in_fmt
Definition: vf_scale_npp.c:61
AVOptions.
static void nppscale_uninit(AVFilterContext *ctx)
Definition: vf_scale_npp.c:128
int w
New dimensions.
Definition: vf_scale_npp.c:87
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:89
#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:101
int width
Definition: frame.h:259
#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:374
av_default_item_name
#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:163
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:2447
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
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:90
static int nppscale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:458
static int init_stage(NPPScaleStageContext *stage, AVBufferRef *device_ctx)
Definition: vf_scale_npp.c:150
int av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
Definition: hwcontext.c:323
static int nppscale_interleave(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in)
Definition: vf_scale_npp.c:426
int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
Allocate a new frame attached to the given AVHWFramesContext.
Definition: hwcontext.c:459
#define fail()
Definition: checkasm.h:109
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:146
static const AVClass nppscale_class
Definition: vf_scale_npp.c:558
AVFormatContext * ctx
Definition: movenc.c:48
static enum AVPixelFormat supported_formats[]
Definition: vf_scale_npp.c:42
FFmpeg internal API for CUDA.
int dummy
Definition: motion.c:64
#define OFFSET(x)
Definition: vf_scale_npp.c:539
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:389
static int format_is_supported(enum AVPixelFormat fmt)
Definition: vf_scale_npp.c:202
HW acceleration through CUDA.
Definition: pixfmt.h:249
#define FF_ARRAY_ELEMS(a)
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:379
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
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:289
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 AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
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:121
AVFrame * tmp_frame
Definition: vf_scale_npp.c:77
static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height, int out_width, int out_height)
Definition: vf_scale_npp.c:226
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:451
static int nppscale_query_formats(AVFilterContext *ctx)
Definition: vf_scale_npp.c:140
#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:266
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:505
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:138
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:62
common internal and external API header
if(ret< 0)
Definition: vf_mcdeint.c:279
NPPScaleStageContext stages[STAGE_NB]
Definition: vf_scale_npp.c:76
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:237
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:492
struct NPPScaleStageContext::@193 planes_in[3]
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:48
An instance of a filter.
Definition: avfilter.h:338
struct NPPScaleStageContext::@193 planes_out[3]
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int height
Definition: frame.h:259
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:2347
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:2335
internal API functions
char * h_expr
height expression string
Definition: vf_scale_npp.c:95
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:219
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:603