FFmpeg  4.3.6
vf_scale_cuda.c
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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_eval.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 
87 
88  CUcontext cu_ctx;
89  CUmodule cu_module;
90  CUfunction cu_func_uchar;
91  CUfunction cu_func_uchar2;
92  CUfunction cu_func_uchar4;
93  CUfunction cu_func_ushort;
94  CUfunction cu_func_ushort2;
95  CUfunction cu_func_ushort4;
96  CUstream cu_stream;
97 
98  CUdeviceptr srcBuffer;
99  CUdeviceptr dstBuffer;
102 
104 {
105  CUDAScaleContext *s = ctx->priv;
106 
107  s->format = AV_PIX_FMT_NONE;
108  s->frame = av_frame_alloc();
109  if (!s->frame)
110  return AVERROR(ENOMEM);
111 
112  s->tmp_frame = av_frame_alloc();
113  if (!s->tmp_frame)
114  return AVERROR(ENOMEM);
115 
116  return 0;
117 }
118 
120 {
121  CUDAScaleContext *s = ctx->priv;
122 
123  av_frame_free(&s->frame);
126 }
127 
129 {
130  static const enum AVPixelFormat pixel_formats[] = {
132  };
133  AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats);
134 
135  return ff_set_common_formats(ctx, pix_fmts);
136 }
137 
139 {
140  AVBufferRef *out_ref = NULL;
141  AVHWFramesContext *out_ctx;
142  int in_sw, in_sh, out_sw, out_sh;
143  int ret, i;
144 
145  av_pix_fmt_get_chroma_sub_sample(s->in_fmt, &in_sw, &in_sh);
146  av_pix_fmt_get_chroma_sub_sample(s->out_fmt, &out_sw, &out_sh);
147  if (!s->planes_out[0].width) {
148  s->planes_out[0].width = s->planes_in[0].width;
149  s->planes_out[0].height = s->planes_in[0].height;
150  }
151 
152  for (i = 1; i < FF_ARRAY_ELEMS(s->planes_in); i++) {
153  s->planes_in[i].width = s->planes_in[0].width >> in_sw;
154  s->planes_in[i].height = s->planes_in[0].height >> in_sh;
155  s->planes_out[i].width = s->planes_out[0].width >> out_sw;
156  s->planes_out[i].height = s->planes_out[0].height >> out_sh;
157  }
158 
159  out_ref = av_hwframe_ctx_alloc(device_ctx);
160  if (!out_ref)
161  return AVERROR(ENOMEM);
162  out_ctx = (AVHWFramesContext*)out_ref->data;
163 
164  out_ctx->format = AV_PIX_FMT_CUDA;
165  out_ctx->sw_format = s->out_fmt;
166  out_ctx->width = FFALIGN(s->planes_out[0].width, 32);
167  out_ctx->height = FFALIGN(s->planes_out[0].height, 32);
168 
169  ret = av_hwframe_ctx_init(out_ref);
170  if (ret < 0)
171  goto fail;
172 
173  av_frame_unref(s->frame);
174  ret = av_hwframe_get_buffer(out_ref, s->frame, 0);
175  if (ret < 0)
176  goto fail;
177 
178  s->frame->width = s->planes_out[0].width;
179  s->frame->height = s->planes_out[0].height;
180 
182  s->frames_ctx = out_ref;
183 
184  return 0;
185 fail:
186  av_buffer_unref(&out_ref);
187  return ret;
188 }
189 
190 static int format_is_supported(enum AVPixelFormat fmt)
191 {
192  int i;
193 
194  for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
195  if (supported_formats[i] == fmt)
196  return 1;
197  return 0;
198 }
199 
200 static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height,
201  int out_width, int out_height)
202 {
203  CUDAScaleContext *s = ctx->priv;
204 
205  AVHWFramesContext *in_frames_ctx;
206 
207  enum AVPixelFormat in_format;
208  enum AVPixelFormat out_format;
209  int ret;
210 
211  /* check that we have a hw context */
212  if (!ctx->inputs[0]->hw_frames_ctx) {
213  av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n");
214  return AVERROR(EINVAL);
215  }
216  in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data;
217  in_format = in_frames_ctx->sw_format;
218  out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format;
219 
220  if (!format_is_supported(in_format)) {
221  av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n",
222  av_get_pix_fmt_name(in_format));
223  return AVERROR(ENOSYS);
224  }
225  if (!format_is_supported(out_format)) {
226  av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n",
227  av_get_pix_fmt_name(out_format));
228  return AVERROR(ENOSYS);
229  }
230 
231  if (in_width == out_width && in_height == out_height)
232  s->passthrough = 1;
233 
234  s->in_fmt = in_format;
235  s->out_fmt = out_format;
236 
237  s->planes_in[0].width = in_width;
238  s->planes_in[0].height = in_height;
239  s->planes_out[0].width = out_width;
240  s->planes_out[0].height = out_height;
241 
242  ret = init_stage(s, in_frames_ctx->device_ref);
243  if (ret < 0)
244  return ret;
245 
247  if (!ctx->outputs[0]->hw_frames_ctx)
248  return AVERROR(ENOMEM);
249 
250  return 0;
251 }
252 
254 {
255  AVFilterContext *ctx = outlink->src;
256  AVFilterLink *inlink = outlink->src->inputs[0];
257  CUDAScaleContext *s = ctx->priv;
259  AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
260  CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
261  CudaFunctions *cu = device_hwctx->internal->cuda_dl;
262  int w, h;
263  int ret;
264 
265  extern char vf_scale_cuda_ptx[];
266 
267  s->hwctx = device_hwctx;
268  s->cu_stream = s->hwctx->stream;
269 
270  ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
271  if (ret < 0)
272  goto fail;
273 
274  ret = CHECK_CU(cu->cuModuleLoadData(&s->cu_module, vf_scale_cuda_ptx));
275  if (ret < 0)
276  goto fail;
277 
278  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, "Subsample_Bilinear_uchar"));
279  if (ret < 0)
280  goto fail;
281 
282  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, "Subsample_Bilinear_uchar2"));
283  if (ret < 0)
284  goto fail;
285 
286  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, "Subsample_Bilinear_uchar4"));
287  if (ret < 0)
288  goto fail;
289 
290  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, "Subsample_Bilinear_ushort"));
291  if (ret < 0)
292  goto fail;
293 
294  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, "Subsample_Bilinear_ushort2"));
295  if (ret < 0)
296  goto fail;
297 
298  CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, "Subsample_Bilinear_ushort4"));
299  if (ret < 0)
300  goto fail;
301 
302 
303  CHECK_CU(cu->cuCtxPopCurrent(&dummy));
304 
305  if ((ret = ff_scale_eval_dimensions(s,
306  s->w_expr, s->h_expr,
307  inlink, outlink,
308  &w, &h)) < 0)
309  goto fail;
310 
311  ff_scale_adjust_dimensions(inlink, &w, &h,
313 
314  if (((int64_t)h * inlink->w) > INT_MAX ||
315  ((int64_t)w * inlink->h) > INT_MAX)
316  av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
317 
318  outlink->w = w;
319  outlink->h = h;
320 
321  ret = init_processing_chain(ctx, inlink->w, inlink->h, w, h);
322  if (ret < 0)
323  return ret;
324 
325  av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n",
326  inlink->w, inlink->h, outlink->w, outlink->h);
327 
328  if (inlink->sample_aspect_ratio.num) {
329  outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
330  outlink->w*inlink->h},
331  inlink->sample_aspect_ratio);
332  } else {
333  outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
334  }
335 
336  return 0;
337 
338 fail:
339  return ret;
340 }
341 
342 static int call_resize_kernel(AVFilterContext *ctx, CUfunction func, int channels,
343  uint8_t *src_dptr, int src_width, int src_height, int src_pitch,
344  uint8_t *dst_dptr, int dst_width, int dst_height, int dst_pitch,
345  int pixel_size)
346 {
347  CUDAScaleContext *s = ctx->priv;
348  CudaFunctions *cu = s->hwctx->internal->cuda_dl;
349  CUdeviceptr dst_devptr = (CUdeviceptr)dst_dptr;
350  CUtexObject tex = 0;
351  void *args_uchar[] = { &tex, &dst_devptr, &dst_width, &dst_height, &dst_pitch, &src_width, &src_height };
352  int ret;
353 
354  CUDA_TEXTURE_DESC tex_desc = {
355  .filterMode = CU_TR_FILTER_MODE_LINEAR,
356  .flags = CU_TRSF_READ_AS_INTEGER,
357  };
358 
359  CUDA_RESOURCE_DESC res_desc = {
360  .resType = CU_RESOURCE_TYPE_PITCH2D,
361  .res.pitch2D.format = pixel_size == 1 ?
362  CU_AD_FORMAT_UNSIGNED_INT8 :
363  CU_AD_FORMAT_UNSIGNED_INT16,
364  .res.pitch2D.numChannels = channels,
365  .res.pitch2D.width = src_width,
366  .res.pitch2D.height = src_height,
367  .res.pitch2D.pitchInBytes = src_pitch * pixel_size,
368  .res.pitch2D.devPtr = (CUdeviceptr)src_dptr,
369  };
370 
371  ret = CHECK_CU(cu->cuTexObjectCreate(&tex, &res_desc, &tex_desc, NULL));
372  if (ret < 0)
373  goto exit;
374 
375  ret = CHECK_CU(cu->cuLaunchKernel(func,
376  DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1,
377  BLOCKX, BLOCKY, 1, 0, s->cu_stream, args_uchar, NULL));
378 
379 exit:
380  if (tex)
381  CHECK_CU(cu->cuTexObjectDestroy(tex));
382 
383  return ret;
384 }
385 
387  AVFrame *out, AVFrame *in)
388 {
389  AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
390  CUDAScaleContext *s = ctx->priv;
391 
392  switch (in_frames_ctx->sw_format) {
393  case AV_PIX_FMT_YUV420P:
394  call_resize_kernel(ctx, s->cu_func_uchar, 1,
395  in->data[0], in->width, in->height, in->linesize[0],
396  out->data[0], out->width, out->height, out->linesize[0],
397  1);
398  call_resize_kernel(ctx, s->cu_func_uchar, 1,
399  in->data[1], in->width/2, in->height/2, in->linesize[0]/2,
400  out->data[1], out->width/2, out->height/2, out->linesize[0]/2,
401  1);
402  call_resize_kernel(ctx, s->cu_func_uchar, 1,
403  in->data[2], in->width/2, in->height/2, in->linesize[0]/2,
404  out->data[2], out->width/2, out->height/2, out->linesize[0]/2,
405  1);
406  break;
407  case AV_PIX_FMT_YUV444P:
408  call_resize_kernel(ctx, s->cu_func_uchar, 1,
409  in->data[0], in->width, in->height, in->linesize[0],
410  out->data[0], out->width, out->height, out->linesize[0],
411  1);
412  call_resize_kernel(ctx, s->cu_func_uchar, 1,
413  in->data[1], in->width, in->height, in->linesize[0],
414  out->data[1], out->width, out->height, out->linesize[0],
415  1);
416  call_resize_kernel(ctx, s->cu_func_uchar, 1,
417  in->data[2], in->width, in->height, in->linesize[0],
418  out->data[2], out->width, out->height, out->linesize[0],
419  1);
420  break;
422  call_resize_kernel(ctx, s->cu_func_ushort, 1,
423  in->data[0], in->width, in->height, in->linesize[0] / 2,
424  out->data[0], out->width, out->height, out->linesize[0] / 2,
425  2);
426  call_resize_kernel(ctx, s->cu_func_ushort, 1,
427  in->data[1], in->width, in->height, in->linesize[1] / 2,
428  out->data[1], out->width, out->height, out->linesize[1] / 2,
429  2);
430  call_resize_kernel(ctx, s->cu_func_ushort, 1,
431  in->data[2], in->width, in->height, in->linesize[2] / 2,
432  out->data[2], out->width, out->height, out->linesize[2] / 2,
433  2);
434  break;
435  case AV_PIX_FMT_NV12:
436  call_resize_kernel(ctx, s->cu_func_uchar, 1,
437  in->data[0], in->width, in->height, in->linesize[0],
438  out->data[0], out->width, out->height, out->linesize[0],
439  1);
440  call_resize_kernel(ctx, s->cu_func_uchar2, 2,
441  in->data[1], in->width/2, in->height/2, in->linesize[1],
442  out->data[1], out->width/2, out->height/2, out->linesize[1]/2,
443  1);
444  break;
445  case AV_PIX_FMT_P010LE:
446  call_resize_kernel(ctx, s->cu_func_ushort, 1,
447  in->data[0], in->width, in->height, in->linesize[0]/2,
448  out->data[0], out->width, out->height, out->linesize[0]/2,
449  2);
450  call_resize_kernel(ctx, s->cu_func_ushort2, 2,
451  in->data[1], in->width / 2, in->height / 2, in->linesize[1]/2,
452  out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 4,
453  2);
454  break;
455  case AV_PIX_FMT_P016LE:
456  call_resize_kernel(ctx, s->cu_func_ushort, 1,
457  in->data[0], in->width, in->height, in->linesize[0] / 2,
458  out->data[0], out->width, out->height, out->linesize[0] / 2,
459  2);
460  call_resize_kernel(ctx, s->cu_func_ushort2, 2,
461  in->data[1], in->width / 2, in->height / 2, in->linesize[1] / 2,
462  out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 4,
463  2);
464  break;
465  default:
466  return AVERROR_BUG;
467  }
468 
469  return 0;
470 }
471 
473 {
474  CUDAScaleContext *s = ctx->priv;
475  AVFrame *src = in;
476  int ret;
477 
478  ret = scalecuda_resize(ctx, s->frame, src);
479  if (ret < 0)
480  return ret;
481 
482  src = s->frame;
483  ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0);
484  if (ret < 0)
485  return ret;
486 
487  av_frame_move_ref(out, s->frame);
489 
490  s->frame->width = s->planes_out[0].width;
491  s->frame->height = s->planes_out[0].height;
492 
493  ret = av_frame_copy_props(out, in);
494  if (ret < 0)
495  return ret;
496 
497  return 0;
498 }
499 
501 {
502  AVFilterContext *ctx = link->dst;
503  CUDAScaleContext *s = ctx->priv;
504  AVFilterLink *outlink = ctx->outputs[0];
505  CudaFunctions *cu = s->hwctx->internal->cuda_dl;
506 
507  AVFrame *out = NULL;
508  CUcontext dummy;
509  int ret = 0;
510 
511  out = av_frame_alloc();
512  if (!out) {
513  ret = AVERROR(ENOMEM);
514  goto fail;
515  }
516 
517  ret = CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx));
518  if (ret < 0)
519  goto fail;
520 
521  ret = cudascale_scale(ctx, out, in);
522 
523  CHECK_CU(cu->cuCtxPopCurrent(&dummy));
524  if (ret < 0)
525  goto fail;
526 
528  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
529  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
530  INT_MAX);
531 
532  av_frame_free(&in);
533  return ff_filter_frame(outlink, out);
534 fail:
535  av_frame_free(&in);
536  av_frame_free(&out);
537  return ret;
538 }
539 
540 #define OFFSET(x) offsetof(CUDAScaleContext, x)
541 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
542 static const AVOption options[] = {
543  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
544  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
545  { "force_original_aspect_ratio", "decrease or increase w/h if necessary to keep the original AR", OFFSET(force_original_aspect_ratio), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, FLAGS, "force_oar" },
546  { "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, "force_oar" },
547  { "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, "force_oar" },
548  { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
549  { "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1}, 1, 256, FLAGS },
550  { NULL },
551 };
552 
553 static const AVClass cudascale_class = {
554  .class_name = "cudascale",
555  .item_name = av_default_item_name,
556  .option = options,
557  .version = LIBAVUTIL_VERSION_INT,
558 };
559 
560 static const AVFilterPad cudascale_inputs[] = {
561  {
562  .name = "default",
563  .type = AVMEDIA_TYPE_VIDEO,
564  .filter_frame = cudascale_filter_frame,
565  },
566  { NULL }
567 };
568 
569 static const AVFilterPad cudascale_outputs[] = {
570  {
571  .name = "default",
572  .type = AVMEDIA_TYPE_VIDEO,
573  .config_props = cudascale_config_props,
574  },
575  { NULL }
576 };
577 
579  .name = "scale_cuda",
580  .description = NULL_IF_CONFIG_SMALL("GPU accelerated video resizer"),
581 
582  .init = cudascale_init,
583  .uninit = cudascale_uninit,
584  .query_formats = cudascale_query_formats,
585 
586  .priv_size = sizeof(CUDAScaleContext),
587  .priv_class = &cudascale_class,
588 
589  .inputs = cudascale_inputs,
590  .outputs = cudascale_outputs,
591 
592  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
593 };
int force_original_aspect_ratio
Definition: vf_scale_cuda.c:85
#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:365
enum AVPixelFormat format
Output sw format.
Definition: vf_scale_cuda.c:80
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:300
AVOption.
Definition: opt.h:246
CUfunction cu_func_uchar
Definition: vf_scale_cuda.c:90
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.
AVCUDADeviceContextInternal * internal
int num
Numerator.
Definition: rational.h:59
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:229
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:209
AVFrame * tmp_frame
Definition: vf_scale_cuda.c:74
CUcontext cu_ctx
Definition: vf_scale_cuda.c:88
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:583
char * w_expr
width expression string
Definition: vf_scale_cuda.c:82
AVCUDADeviceContext * hwctx
Definition: vf_scale_cuda.c:61
#define BLOCKX
Definition: vf_scale_cuda.c:53
CUdeviceptr srcBuffer
Definition: vf_scale_cuda.c:98
CUfunction cu_func_ushort
Definition: vf_scale_cuda.c:93
#define FLAGS
struct CUDAScaleContext::@231 planes_in[3]
AVFilterFormats * ff_make_format_list(const int *fmts)
Create a list of supported formats.
Definition: formats.c:300
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:639
#define AV_PIX_FMT_P016
Definition: pixfmt.h:447
CUstream cu_stream
Definition: vf_scale_cuda.c:96
const char * name
Pad name.
Definition: internal.h:60
#define AV_PIX_FMT_P010
Definition: pixfmt.h:446
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:1075
uint8_t
#define av_cold
Definition: attributes.h:88
#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:190
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:95
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:92
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:410
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
channels
Definition: aptx.h:33
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 src
Definition: vp8dsp.c:254
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
int width
Definition: frame.h:358
#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:605
static int format_is_supported(enum AVPixelFormat fmt)
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)
Parse and evaluate string expressions for width and height.
Definition: scale_eval.c:57
#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:203
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:2577
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
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:333
int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
Allocate a new frame attached to the given AVHWFramesContext.
Definition: hwcontext.c:502
#define fail()
Definition: checkasm.h:123
static int cudascale_filter_frame(AVFilterLink *link, AVFrame *in)
common internal API header
#define OFFSET(x)
struct CUDAScaleContext::@231 planes_out[3]
AVHWDeviceContext * device_ctx
The parent AVHWDeviceContext.
Definition: hwcontext.h:149
CUmodule cu_module
Definition: vf_scale_cuda.c:89
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:91
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:99
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:331
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:388
#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:124
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
int ff_scale_adjust_dimensions(AVFilterLink *inlink, int *ret_w, int *ret_h, int force_original_aspect_ratio, int force_divisible_by)
Transform evaluated width and height obtained from ff_scale_eval_dimensions into actual target width ...
Definition: scale_eval.c:113
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:554
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:314
CUfunction cu_func_ushort2
Definition: vf_scale_cuda.c:94
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:141
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:247
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
CUfunction cu_func_uchar4
Definition: vf_scale_cuda.c:92
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:358
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:2465
internal API functions
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:222
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:659