FFmpeg  4.2.2
vf_scale_cuda.c
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1 /*
2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
3 *
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15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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21 */
22 
23 #include <stdio.h>
24 #include <string.h>
25 
26 #include "libavutil/avstring.h"
27 #include "libavutil/common.h"
28 #include "libavutil/hwcontext.h"
30 #include "libavutil/cuda_check.h"
31 #include "libavutil/internal.h"
32 #include "libavutil/opt.h"
33 #include "libavutil/pixdesc.h"
34 
35 #include "avfilter.h"
36 #include "formats.h"
37 #include "internal.h"
38 #include "scale.h"
39 #include "video.h"
40 
41 static const enum AVPixelFormat supported_formats[] = {
48 };
49 
50 #define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) )
51 #define ALIGN_UP(a, b) (((a) + (b) - 1) & ~((b) - 1))
52 #define NUM_BUFFERS 2
53 #define BLOCKX 32
54 #define BLOCKY 16
55 
56 #define CHECK_CU(x) FF_CUDA_CHECK_DL(ctx, s->hwctx->internal->cuda_dl, x)
57 
58 typedef struct CUDAScaleContext {
59  const AVClass *class;
60 
62 
65 
66  struct {
67  int width;
68  int height;
69  } planes_in[3], planes_out[3];
70 
73 
76 
77  /**
78  * Output sw format. AV_PIX_FMT_NONE for no conversion.
79  */
81 
82  char *w_expr; ///< width expression string
83  char *h_expr; ///< height expression string
84 
85  CUcontext cu_ctx;
86  CUmodule cu_module;
87  CUfunction cu_func_uchar;
88  CUfunction cu_func_uchar2;
89  CUfunction cu_func_uchar4;
90  CUfunction cu_func_ushort;
91  CUfunction cu_func_ushort2;
92  CUfunction cu_func_ushort4;
93  CUstream cu_stream;
94 
95  CUdeviceptr srcBuffer;
96  CUdeviceptr dstBuffer;
99 
101 {
102  CUDAScaleContext *s = ctx->priv;
103 
104  s->format = AV_PIX_FMT_NONE;
105  s->frame = av_frame_alloc();
106  if (!s->frame)
107  return AVERROR(ENOMEM);
108 
109  s->tmp_frame = av_frame_alloc();
110  if (!s->tmp_frame)
111  return AVERROR(ENOMEM);
112 
113  return 0;
114 }
115 
117 {
118  CUDAScaleContext *s = ctx->priv;
119 
120  av_frame_free(&s->frame);
123 }
124 
126 {
127  static const enum AVPixelFormat pixel_formats[] = {
129  };
130  AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats);
131 
132  return ff_set_common_formats(ctx, pix_fmts);
133 }
134 
136 {
137  AVBufferRef *out_ref = NULL;
138  AVHWFramesContext *out_ctx;
139  int in_sw, in_sh, out_sw, out_sh;
140  int ret, i;
141 
142  av_pix_fmt_get_chroma_sub_sample(s->in_fmt, &in_sw, &in_sh);
143  av_pix_fmt_get_chroma_sub_sample(s->out_fmt, &out_sw, &out_sh);
144  if (!s->planes_out[0].width) {
145  s->planes_out[0].width = s->planes_in[0].width;
146  s->planes_out[0].height = s->planes_in[0].height;
147  }
148 
149  for (i = 1; i < FF_ARRAY_ELEMS(s->planes_in); i++) {
150  s->planes_in[i].width = s->planes_in[0].width >> in_sw;
151  s->planes_in[i].height = s->planes_in[0].height >> in_sh;
152  s->planes_out[i].width = s->planes_out[0].width >> out_sw;
153  s->planes_out[i].height = s->planes_out[0].height >> out_sh;
154  }
155 
156  out_ref = av_hwframe_ctx_alloc(device_ctx);
157  if (!out_ref)
158  return AVERROR(ENOMEM);
159  out_ctx = (AVHWFramesContext*)out_ref->data;
160 
161  out_ctx->format = AV_PIX_FMT_CUDA;
162  out_ctx->sw_format = s->out_fmt;
163  out_ctx->width = FFALIGN(s->planes_out[0].width, 32);
164  out_ctx->height = FFALIGN(s->planes_out[0].height, 32);
165 
166  ret = av_hwframe_ctx_init(out_ref);
167  if (ret < 0)
168  goto fail;
169 
170  av_frame_unref(s->frame);
171  ret = av_hwframe_get_buffer(out_ref, s->frame, 0);
172  if (ret < 0)
173  goto fail;
174 
175  s->frame->width = s->planes_out[0].width;
176  s->frame->height = s->planes_out[0].height;
177 
179  s->frames_ctx = out_ref;
180 
181  return 0;
182 fail:
183  av_buffer_unref(&out_ref);
184  return ret;
185 }
186 
188 {
189  int i;
190 
191  for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
192  if (supported_formats[i] == fmt)
193  return 1;
194  return 0;
195 }
196 
197 static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height,
198  int out_width, int out_height)
199 {
200  CUDAScaleContext *s = ctx->priv;
201 
202  AVHWFramesContext *in_frames_ctx;
203 
204  enum AVPixelFormat in_format;
205  enum AVPixelFormat out_format;
206  int ret;
207 
208  /* check that we have a hw context */
209  if (!ctx->inputs[0]->hw_frames_ctx) {
210  av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
211  return AVERROR(EINVAL);
212  }
213  in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
214  in_format = in_frames_ctx->sw_format;
215  out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format;
216 
217  if (!format_is_supported(in_format)) {
218  av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n",
219  av_get_pix_fmt_name(in_format));
220  return AVERROR(ENOSYS);
221  }
222  if (!format_is_supported(out_format)) {
223  av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n",
224  av_get_pix_fmt_name(out_format));
225  return AVERROR(ENOSYS);
226  }
227 
228  if (in_width == out_width && in_height == out_height)
229  s->passthrough = 1;
230 
231  s->in_fmt = in_format;
232  s->out_fmt = out_format;
233 
234  s->planes_in[0].width = in_width;
235  s->planes_in[0].height = in_height;
236  s->planes_out[0].width = out_width;
237  s->planes_out[0].height = out_height;
238 
239  ret = init_stage(s, in_frames_ctx->device_ref);
240  if (ret < 0)
241  return ret;
242 
244  if (!ctx->outputs[0]->hw_frames_ctx)
245  return AVERROR(ENOMEM);
246 
247  return 0;
248 }
249 
251 {
252  AVFilterContext *ctx = outlink->src;
253  AVFilterLink *inlink = outlink->src->inputs[0];
254  CUDAScaleContext *s = ctx->priv;
256  AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
257  CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
258  CudaFunctions *cu = device_hwctx->internal->cuda_dl;
259  int w, h;
260  int ret;
261 
262  extern char vf_scale_cuda_ptx[];
263 
264  s->hwctx = device_hwctx;
265  s->cu_stream = s->hwctx->stream;
266 
267  ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
268  if (ret < 0)
269  goto fail;
270 
271  ret = CHECK_CU(cu->cuModuleLoadData(&s->cu_module, vf_scale_cuda_ptx));
272  if (ret < 0)
273  goto fail;
274 
275  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, "Subsample_Bilinear_uchar"));
276  if (ret < 0)
277  goto fail;
278 
279  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, "Subsample_Bilinear_uchar2"));
280  if (ret < 0)
281  goto fail;
282 
283  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, "Subsample_Bilinear_uchar4"));
284  if (ret < 0)
285  goto fail;
286 
287  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, "Subsample_Bilinear_ushort"));
288  if (ret < 0)
289  goto fail;
290 
291  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, "Subsample_Bilinear_ushort2"));
292  if (ret < 0)
293  goto fail;
294 
295  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, "Subsample_Bilinear_ushort4"));
296  if (ret < 0)
297  goto fail;
298 
299 
300  CHECK_CU(cu->cuCtxPopCurrent(&dummy));
301 
302  if ((ret = ff_scale_eval_dimensions(s,
303  s->w_expr, s->h_expr,
304  inlink, outlink,
305  &w, &h)) < 0)
306  goto fail;
307 
308  if (((int64_t)h * inlink->w) > INT_MAX ||
309  ((int64_t)w * inlink->h) > INT_MAX)
310  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
311 
312  outlink->w = w;
313  outlink->h = h;
314 
315  ret = init_processing_chain(ctx, inlink->w, inlink->h, w, h);
316  if (ret < 0)
317  return ret;
318 
319  av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n",
320  inlink->w, inlink->h, outlink->w, outlink->h);
321 
322  if (inlink->sample_aspect_ratio.num) {
323  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
324  outlink->w*inlink->h},
325  inlink->sample_aspect_ratio);
326  } else {
327  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
328  }
329 
330  return 0;
331 
332 fail:
333  return ret;
334 }
335 
336 static int call_resize_kernel(AVFilterContext *ctx, CUfunction func, int channels,
337  uint8_t *src_dptr, int src_width, int src_height, int src_pitch,
338  uint8_t *dst_dptr, int dst_width, int dst_height, int dst_pitch,
339  int pixel_size)
340 {
341  CUDAScaleContext *s = ctx->priv;
342  CudaFunctions *cu = s->hwctx->internal->cuda_dl;
343  CUdeviceptr dst_devptr = (CUdeviceptr)dst_dptr;
344  CUtexObject tex = 0;
345  void *args_uchar[] = { &tex, &dst_devptr, &dst_width, &dst_height, &dst_pitch, &src_width, &src_height };
346  int ret;
347 
348  CUDA_TEXTURE_DESC tex_desc = {
349  .filterMode = CU_TR_FILTER_MODE_LINEAR,
350  .flags = CU_TRSF_READ_AS_INTEGER,
351  };
352 
353  CUDA_RESOURCE_DESC res_desc = {
354  .resType = CU_RESOURCE_TYPE_PITCH2D,
355  .res.pitch2D.format = pixel_size == 1 ?
356  CU_AD_FORMAT_UNSIGNED_INT8 :
357  CU_AD_FORMAT_UNSIGNED_INT16,
358  .res.pitch2D.numChannels = channels,
359  .res.pitch2D.width = src_width,
360  .res.pitch2D.height = src_height,
361  .res.pitch2D.pitchInBytes = src_pitch * pixel_size,
362  .res.pitch2D.devPtr = (CUdeviceptr)src_dptr,
363  };
364 
365  ret = CHECK_CU(cu->cuTexObjectCreate(&tex, &res_desc, &tex_desc, NULL));
366  if (ret < 0)
367  goto exit;
368 
369  ret = CHECK_CU(cu->cuLaunchKernel(func,
370  DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1,
371  BLOCKX, BLOCKY, 1, 0, s->cu_stream, args_uchar, NULL));
372 
373 exit:
374  if (tex)
375  CHECK_CU(cu->cuTexObjectDestroy(tex));
376 
377  return ret;
378 }
379 
381  AVFrame *out, AVFrame *in)
382 {
383  AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
384  CUDAScaleContext *s = ctx->priv;
385 
386  switch (in_frames_ctx->sw_format) {
387  case AV_PIX_FMT_YUV420P:
388  call_resize_kernel(ctx, s->cu_func_uchar, 1,
389  in->data[0], in->width, in->height, in->linesize[0],
390  out->data[0], out->width, out->height, out->linesize[0],
391  1);
392  call_resize_kernel(ctx, s->cu_func_uchar, 1,
393  in->data[1], in->width/2, in->height/2, in->linesize[0]/2,
394  out->data[1], out->width/2, out->height/2, out->linesize[0]/2,
395  1);
396  call_resize_kernel(ctx, s->cu_func_uchar, 1,
397  in->data[2], in->width/2, in->height/2, in->linesize[0]/2,
398  out->data[2], out->width/2, out->height/2, out->linesize[0]/2,
399  1);
400  break;
401  case AV_PIX_FMT_YUV444P:
402  call_resize_kernel(ctx, s->cu_func_uchar, 1,
403  in->data[0], in->width, in->height, in->linesize[0],
404  out->data[0], out->width, out->height, out->linesize[0],
405  1);
406  call_resize_kernel(ctx, s->cu_func_uchar, 1,
407  in->data[1], in->width, in->height, in->linesize[0],
408  out->data[1], out->width, out->height, out->linesize[0],
409  1);
410  call_resize_kernel(ctx, s->cu_func_uchar, 1,
411  in->data[2], in->width, in->height, in->linesize[0],
412  out->data[2], out->width, out->height, out->linesize[0],
413  1);
414  break;
416  call_resize_kernel(ctx, s->cu_func_ushort, 1,
417  in->data[0], in->width, in->height, in->linesize[0] / 2,
418  out->data[0], out->width, out->height, out->linesize[0] / 2,
419  2);
420  call_resize_kernel(ctx, s->cu_func_ushort, 1,
421  in->data[1], in->width, in->height, in->linesize[1] / 2,
422  out->data[1], out->width, out->height, out->linesize[1] / 2,
423  2);
424  call_resize_kernel(ctx, s->cu_func_ushort, 1,
425  in->data[2], in->width, in->height, in->linesize[2] / 2,
426  out->data[2], out->width, out->height, out->linesize[2] / 2,
427  2);
428  break;
429  case AV_PIX_FMT_NV12:
430  call_resize_kernel(ctx, s->cu_func_uchar, 1,
431  in->data[0], in->width, in->height, in->linesize[0],
432  out->data[0], out->width, out->height, out->linesize[0],
433  1);
434  call_resize_kernel(ctx, s->cu_func_uchar2, 2,
435  in->data[1], in->width/2, in->height/2, in->linesize[1],
436  out->data[1], out->width/2, out->height/2, out->linesize[1]/2,
437  1);
438  break;
439  case AV_PIX_FMT_P010LE:
440  call_resize_kernel(ctx, s->cu_func_ushort, 1,
441  in->data[0], in->width, in->height, in->linesize[0]/2,
442  out->data[0], out->width, out->height, out->linesize[0]/2,
443  2);
444  call_resize_kernel(ctx, s->cu_func_ushort2, 2,
445  in->data[1], in->width / 2, in->height / 2, in->linesize[1]/2,
446  out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 4,
447  2);
448  break;
449  case AV_PIX_FMT_P016LE:
450  call_resize_kernel(ctx, s->cu_func_ushort, 1,
451  in->data[0], in->width, in->height, in->linesize[0] / 2,
452  out->data[0], out->width, out->height, out->linesize[0] / 2,
453  2);
454  call_resize_kernel(ctx, s->cu_func_ushort2, 2,
455  in->data[1], in->width / 2, in->height / 2, in->linesize[1] / 2,
456  out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 4,
457  2);
458  break;
459  default:
460  return AVERROR_BUG;
461  }
462 
463  return 0;
464 }
465 
467 {
468  CUDAScaleContext *s = ctx->priv;
469  AVFrame *src = in;
470  int ret;
471 
472  ret = scalecuda_resize(ctx, s->frame, src);
473  if (ret < 0)
474  return ret;
475 
476  src = s->frame;
477  ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0);
478  if (ret < 0)
479  return ret;
480 
481  av_frame_move_ref(out, s->frame);
483 
484  s->frame->width = s->planes_out[0].width;
485  s->frame->height = s->planes_out[0].height;
486 
487  ret = av_frame_copy_props(out, in);
488  if (ret < 0)
489  return ret;
490 
491  return 0;
492 }
493 
495 {
496  AVFilterContext *ctx = link->dst;
497  CUDAScaleContext *s = ctx->priv;
498  AVFilterLink *outlink = ctx->outputs[0];
499  CudaFunctions *cu = s->hwctx->internal->cuda_dl;
500 
501  AVFrame *out = NULL;
502  CUcontext dummy;
503  int ret = 0;
504 
505  out = av_frame_alloc();
506  if (!out) {
507  ret = AVERROR(ENOMEM);
508  goto fail;
509  }
510 
511  ret = CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx));
512  if (ret < 0)
513  goto fail;
514 
515  ret = cudascale_scale(ctx, out, in);
516 
517  CHECK_CU(cu->cuCtxPopCurrent(&dummy));
518  if (ret < 0)
519  goto fail;
520 
522  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
523  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
524  INT_MAX);
525 
526  av_frame_free(&in);
527  return ff_filter_frame(outlink, out);
528 fail:
529  av_frame_free(&in);
530  av_frame_free(&out);
531  return ret;
532 }
533 
534 #define OFFSET(x) offsetof(CUDAScaleContext, x)
535 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
536 static const AVOption options[] = {
537  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
538  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
539  { NULL },
540 };
541 
542 static const AVClass cudascale_class = {
543  .class_name = "cudascale",
544  .item_name = av_default_item_name,
545  .option = options,
546  .version = LIBAVUTIL_VERSION_INT,
547 };
548 
549 static const AVFilterPad cudascale_inputs[] = {
550  {
551  .name = "default",
552  .type = AVMEDIA_TYPE_VIDEO,
553  .filter_frame = cudascale_filter_frame,
554  },
555  { NULL }
556 };
557 
558 static const AVFilterPad cudascale_outputs[] = {
559  {
560  .name = "default",
561  .type = AVMEDIA_TYPE_VIDEO,
562  .config_props = cudascale_config_props,
563  },
564  { NULL }
565 };
566 
568  .name = "scale_cuda",
569  .description = NULL_IF_CONFIG_SMALL("GPU accelerated video resizer"),
570 
571  .init = cudascale_init,
572  .uninit = cudascale_uninit,
573  .query_formats = cudascale_query_formats,
574 
575  .priv_size = sizeof(CUDAScaleContext),
576  .priv_class = &cudascale_class,
577 
578  .inputs = cudascale_inputs,
579  .outputs = cudascale_outputs,
580 
581  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
582 };
#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
enum AVPixelFormat format
Output sw format.
Definition: vf_scale_cuda.c:80
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
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
BYTE int const BYTE int src_pitch
Definition: avisynth_c.h:908
AVOption.
Definition: opt.h:246
const char * fmt
Definition: avisynth_c.h:861
CUfunction cu_func_uchar
Definition: vf_scale_cuda.c:87
static int call_resize_kernel(AVFilterContext *ctx, CUfunction func, int channels, uint8_t *src_dptr, int src_width, int src_height, int src_pitch, uint8_t *dst_dptr, int dst_width, int dst_height, int dst_pitch, int pixel_size)
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
Main libavfilter public API header.
channels
Definition: aptx.c:30
AVCUDADeviceContextInternal * internal
int num
Numerator.
Definition: rational.h:59
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:191
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:228
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:208
AVFrame * tmp_frame
Definition: vf_scale_cuda.c:74
CUcontext cu_ctx
Definition: vf_scale_cuda.c:85
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:582
char * w_expr
width expression string
Definition: vf_scale_cuda.c:82
AVCUDADeviceContext * hwctx
Definition: vf_scale_cuda.c:61
#define src
Definition: vp8dsp.c:254
#define BLOCKX
Definition: vf_scale_cuda.c:53
CUdeviceptr srcBuffer
Definition: vf_scale_cuda.c:95
CUfunction cu_func_ushort
Definition: vf_scale_cuda.c:90
#define FLAGS
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:283
AVBufferRef * frames_ctx
Definition: vf_scale_cuda.c:71
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:634
#define AV_PIX_FMT_P016
Definition: pixfmt.h:437
CUstream cu_stream
Definition: vf_scale_cuda.c:93
const char * name
Pad name.
Definition: internal.h:60
#define AV_PIX_FMT_P010
Definition: pixfmt.h:436
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
static int scalecuda_resize(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1080
uint8_t
#define av_cold
Definition: attributes.h:82
#define BLOCKY
Definition: vf_scale_cuda.c:54
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:189
AVOptions.
static enum AVPixelFormat supported_formats[]
Definition: vf_scale_cuda.c:41
static const AVFilterPad cudascale_outputs[]
CUfunction cu_func_ushort4
Definition: vf_scale_cuda.c:92
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:91
static int cudascale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:400
struct CUDAScaleContext::@240 planes_in[3]
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 av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height, int out_width, int out_height)
#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
#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 format_is_supported(enum AVPixelFormat fmt)
#define DIV_UP(a, b)
Definition: vf_scale_cuda.c:50
#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
char * h_expr
height expression string
Definition: vf_scale_cuda.c:83
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
like NV12, with 16bpp per component, little-endian
Definition: pixfmt.h:300
int av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
Definition: hwcontext.c:329
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
static int cudascale_filter_frame(AVFilterLink *link, AVFrame *in)
common internal API header
#define OFFSET(x)
AVHWDeviceContext * device_ctx
The parent AVHWDeviceContext.
Definition: hwcontext.h:148
CUmodule cu_module
Definition: vf_scale_cuda.c:86
uint8_t w
Definition: llviddspenc.c:38
AVFormatContext * ctx
Definition: movenc.c:48
static const AVClass cudascale_class
#define s(width, name)
Definition: cbs_vp9.c:257
FFmpeg internal API for CUDA.
CUfunction cu_func_uchar2
Definition: vf_scale_cuda.c:88
int dummy
Definition: motion.c:64
like NV12, with 10bpp per component, data in the high bits, zeros in the low bits, little-endian
Definition: pixfmt.h:284
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
CUdeviceptr dstBuffer
Definition: vf_scale_cuda.c:96
HW acceleration through CUDA.
Definition: pixfmt.h:235
static const AVOption options[]
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
AVFilter ff_vf_scale_cuda
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
static av_cold void cudascale_uninit(AVFilterContext *ctx)
This struct is allocated as AVHWDeviceContext.hwctx.
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
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
static av_cold int cudascale_config_props(AVFilterLink *outlink)
const char * name
Filter name.
Definition: avfilter.h:148
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:275
static const AVFilterPad cudascale_inputs[]
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:553
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
CUfunction cu_func_ushort2
Definition: vf_scale_cuda.c:91
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:140
A reference to a data buffer.
Definition: buffer.h:81
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
common internal and external API header
static av_cold int cudascale_init(AVFilterContext *ctx)
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:243
static int cudascale_query_formats(AVFilterContext *ctx)
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
#define CHECK_CU(x)
Definition: vf_scale_cuda.c:56
enum AVPixelFormat in_fmt
Definition: vf_scale_cuda.c:63
int den
Denominator.
Definition: rational.h:60
struct CUDAScaleContext::@240 planes_out[3]
CUfunction cu_func_uchar4
Definition: vf_scale_cuda.c:89
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
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
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
BYTE int dst_pitch
Definition: avisynth_c.h:908
internal API functions
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
static av_cold int init_stage(CUDAScaleContext *s, AVBufferRef *device_ctx)
enum AVPixelFormat out_fmt
Definition: vf_scale_cuda.c:64
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:654