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vf_scale_cuda.c
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1 /*
2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
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8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22 
23 #include <cuda.h>
24 #include <stdio.h>
25 #include <string.h>
26 
27 #include "libavutil/avstring.h"
28 #include "libavutil/common.h"
29 #include "libavutil/hwcontext.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[] = {
47 };
48 
49 #define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) )
50 #define ALIGN_UP(a, b) (((a) + (b) - 1) & ~((b) - 1))
51 #define NUM_BUFFERS 2
52 #define BLOCKX 32
53 #define BLOCKY 16
54 
55 typedef struct CUDAScaleContext {
56  const AVClass *class;
59 
60  struct {
61  int width;
62  int height;
63  } planes_in[3], planes_out[3];
64 
67 
70 
71  /**
72  * Output sw format. AV_PIX_FMT_NONE for no conversion.
73  */
75 
76  char *w_expr; ///< width expression string
77  char *h_expr; ///< height expression string
78 
79  CUcontext cu_ctx;
80  CUevent cu_event;
81  CUmodule cu_module;
82  CUfunction cu_func_uchar;
83  CUfunction cu_func_uchar2;
84  CUfunction cu_func_uchar4;
85  CUfunction cu_func_ushort;
86  CUfunction cu_func_ushort2;
87  CUfunction cu_func_ushort4;
88  CUtexref cu_tex_uchar;
89  CUtexref cu_tex_uchar2;
90  CUtexref cu_tex_uchar4;
91  CUtexref cu_tex_ushort;
92  CUtexref cu_tex_ushort2;
93  CUtexref cu_tex_ushort4;
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;
255  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)inlink->hw_frames_ctx->data;
256  AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
257  CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
258  CUresult err;
259  int w, h;
260  int ret;
261 
262  extern char vf_scale_cuda_ptx[];
263 
264  err = cuCtxPushCurrent(cuda_ctx);
265  if (err != CUDA_SUCCESS) {
266  av_log(ctx, AV_LOG_ERROR, "Error pushing cuda context\n");
267  ret = AVERROR_UNKNOWN;
268  goto fail;
269  }
270 
271  err = cuModuleLoadData(&s->cu_module, vf_scale_cuda_ptx);
272  if (err != CUDA_SUCCESS) {
273  av_log(ctx, AV_LOG_ERROR, "Error loading module data\n");
274  ret = AVERROR_UNKNOWN;
275  goto fail;
276  }
277 
278  cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, "Subsample_Bilinear_uchar");
279  cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, "Subsample_Bilinear_uchar2");
280  cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, "Subsample_Bilinear_uchar4");
281  cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, "Subsample_Bilinear_ushort");
282  cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, "Subsample_Bilinear_ushort2");
283  cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, "Subsample_Bilinear_ushort4");
284 
285  cuModuleGetTexRef(&s->cu_tex_uchar, s->cu_module, "uchar_tex");
286  cuModuleGetTexRef(&s->cu_tex_uchar2, s->cu_module, "uchar2_tex");
287  cuModuleGetTexRef(&s->cu_tex_uchar4, s->cu_module, "uchar4_tex");
288  cuModuleGetTexRef(&s->cu_tex_ushort, s->cu_module, "ushort_tex");
289  cuModuleGetTexRef(&s->cu_tex_ushort2, s->cu_module, "ushort2_tex");
290  cuModuleGetTexRef(&s->cu_tex_ushort4, s->cu_module, "ushort4_tex");
291 
292  cuTexRefSetFlags(s->cu_tex_uchar, CU_TRSF_READ_AS_INTEGER);
293  cuTexRefSetFlags(s->cu_tex_uchar2, CU_TRSF_READ_AS_INTEGER);
294  cuTexRefSetFlags(s->cu_tex_uchar4, CU_TRSF_READ_AS_INTEGER);
295  cuTexRefSetFlags(s->cu_tex_ushort, CU_TRSF_READ_AS_INTEGER);
296  cuTexRefSetFlags(s->cu_tex_ushort2, CU_TRSF_READ_AS_INTEGER);
297  cuTexRefSetFlags(s->cu_tex_ushort4, CU_TRSF_READ_AS_INTEGER);
298 
299  cuTexRefSetFilterMode(s->cu_tex_uchar, CU_TR_FILTER_MODE_LINEAR);
300  cuTexRefSetFilterMode(s->cu_tex_uchar2, CU_TR_FILTER_MODE_LINEAR);
301  cuTexRefSetFilterMode(s->cu_tex_uchar4, CU_TR_FILTER_MODE_LINEAR);
302  cuTexRefSetFilterMode(s->cu_tex_ushort, CU_TR_FILTER_MODE_LINEAR);
303  cuTexRefSetFilterMode(s->cu_tex_ushort2, CU_TR_FILTER_MODE_LINEAR);
304  cuTexRefSetFilterMode(s->cu_tex_ushort4, CU_TR_FILTER_MODE_LINEAR);
305 
306  cuCtxPopCurrent(&dummy);
307 
308  if ((ret = ff_scale_eval_dimensions(s,
309  s->w_expr, s->h_expr,
310  inlink, outlink,
311  &w, &h)) < 0)
312  goto fail;
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(CUDAScaleContext *s, CUfunction func, CUtexref tex, 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  CUdeviceptr src_devptr = (CUdeviceptr)src_dptr;
348  CUdeviceptr dst_devptr = (CUdeviceptr)dst_dptr;
349  void *args_uchar[] = { &dst_devptr, &dst_width, &dst_height, &dst_pitch, &src_width, &src_height };
350  CUDA_ARRAY_DESCRIPTOR desc;
351 
352  desc.Width = src_width;
353  desc.Height = src_height;
354  desc.NumChannels = channels;
355  if (pixel_size == 1) {
356  desc.Format = CU_AD_FORMAT_UNSIGNED_INT8;
357  } else {
358  desc.Format = CU_AD_FORMAT_UNSIGNED_INT16;
359  }
360 
361  cuTexRefSetAddress2D_v3(tex, &desc, src_devptr, src_pitch * pixel_size);
362  cuLaunchKernel(func, DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1, BLOCKX, BLOCKY, 1, 0, 0, args_uchar, NULL);
363 
364  return 0;
365 }
366 
368  AVFrame *out, AVFrame *in)
369 {
370  AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
371  CUDAScaleContext *s = ctx->priv;
372 
373  switch (in_frames_ctx->sw_format) {
374  case AV_PIX_FMT_YUV420P:
375  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
376  in->data[0], in->width, in->height, in->linesize[0],
377  out->data[0], out->width, out->height, out->linesize[0],
378  1);
379  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
380  in->data[0]+in->linesize[0]*in->height, in->width/2, in->height/2, in->linesize[0]/2,
381  out->data[0]+out->linesize[0]*out->height, out->width/2, out->height/2, out->linesize[0]/2,
382  1);
383  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
384  in->data[0]+ ALIGN_UP((in->linesize[0]*in->height*5)/4, s->tex_alignment), in->width/2, in->height/2, in->linesize[0]/2,
385  out->data[0]+(out->linesize[0]*out->height*5)/4, out->width/2, out->height/2, out->linesize[0]/2,
386  1);
387  break;
388  case AV_PIX_FMT_YUV444P:
389  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
390  in->data[0], in->width, in->height, in->linesize[0],
391  out->data[0], out->width, out->height, out->linesize[0],
392  1);
393  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
394  in->data[0]+in->linesize[0]*in->height, in->width, in->height, in->linesize[0],
395  out->data[0]+out->linesize[0]*out->height, out->width, out->height, out->linesize[0],
396  1);
397  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
398  in->data[0]+in->linesize[0]*in->height*2, in->width, in->height, in->linesize[0],
399  out->data[0]+out->linesize[0]*out->height*2, out->width, out->height, out->linesize[0],
400  1);
401  break;
402  case AV_PIX_FMT_NV12:
403  call_resize_kernel(s, s->cu_func_uchar, s->cu_tex_uchar, 1,
404  in->data[0], in->width, in->height, in->linesize[0],
405  out->data[0], out->width, out->height, out->linesize[0],
406  1);
407  call_resize_kernel(s, s->cu_func_uchar2, s->cu_tex_uchar2, 2,
408  in->data[1], in->width/2, in->height/2, in->linesize[1],
409  out->data[0] + out->linesize[0] * ((out->height + 31) & ~0x1f), out->width/2, out->height/2, out->linesize[1]/2,
410  1);
411  break;
412  case AV_PIX_FMT_P010LE:
413  call_resize_kernel(s, s->cu_func_ushort, s->cu_tex_ushort, 1,
414  in->data[0], in->width, in->height, in->linesize[0]/2,
415  out->data[0], out->width, out->height, out->linesize[0]/2,
416  2);
417  call_resize_kernel(s, s->cu_func_ushort2, s->cu_tex_ushort2, 2,
418  in->data[1], in->width / 2, in->height / 2, in->linesize[1]/2,
419  out->data[0] + out->linesize[0] * ((out->height + 31) & ~0x1f), out->width / 2, out->height / 2, out->linesize[1] / 4,
420  2);
421  break;
422  case AV_PIX_FMT_P016LE:
423  call_resize_kernel(s, s->cu_func_ushort, s->cu_tex_ushort, 1,
424  in->data[0], in->width, in->height, in->linesize[0] / 2,
425  out->data[0], out->width, out->height, out->linesize[0] / 2,
426  2);
427  call_resize_kernel(s, s->cu_func_ushort2, s->cu_tex_ushort2, 2,
428  in->data[1], in->width / 2, in->height / 2, in->linesize[1] / 2,
429  out->data[0] + out->linesize[0] * ((out->height + 31) & ~0x1f), out->width / 2, out->height / 2, out->linesize[1] / 4,
430  2);
431  break;
432  default:
433  return AVERROR_BUG;
434  }
435 
436  return 0;
437 }
438 
440 {
441  CUDAScaleContext *s = ctx->priv;
442  AVFrame *src = in;
443  int ret;
444 
445  ret = scalecuda_resize(ctx, s->frame, src);
446  if (ret < 0)
447  return ret;
448 
449  src = s->frame;
450  ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0);
451  if (ret < 0)
452  return ret;
453 
454  av_frame_move_ref(out, s->frame);
456 
457  ret = av_frame_copy_props(out, in);
458  if (ret < 0)
459  return ret;
460 
461  return 0;
462 }
463 
465 {
466  AVFilterContext *ctx = link->dst;
467  CUDAScaleContext *s = ctx->priv;
468  AVFilterLink *outlink = ctx->outputs[0];
470  AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
471 
472  AVFrame *out = NULL;
473  CUresult err;
474  CUcontext dummy;
475  int ret = 0;
476 
477  out = av_frame_alloc();
478  if (!out) {
479  ret = AVERROR(ENOMEM);
480  goto fail;
481  }
482 
483  err = cuCtxPushCurrent(device_hwctx->cuda_ctx);
484  if (err != CUDA_SUCCESS) {
485  ret = AVERROR_UNKNOWN;
486  goto fail;
487  }
488 
489  ret = cudascale_scale(ctx, out, in);
490 
491  cuCtxPopCurrent(&dummy);
492  if (ret < 0)
493  goto fail;
494 
495  av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
496  (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
497  (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
498  INT_MAX);
499 
500  av_frame_free(&in);
501  return ff_filter_frame(outlink, out);
502 fail:
503  av_frame_free(&in);
504  av_frame_free(&out);
505  return ret;
506 }
507 
508 #define OFFSET(x) offsetof(CUDAScaleContext, x)
509 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
510 static const AVOption options[] = {
511  { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
512  { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
513  { NULL },
514 };
515 
516 static const AVClass cudascale_class = {
517  .class_name = "cudascale",
518  .item_name = av_default_item_name,
519  .option = options,
520  .version = LIBAVUTIL_VERSION_INT,
521 };
522 
523 static const AVFilterPad cudascale_inputs[] = {
524  {
525  .name = "default",
526  .type = AVMEDIA_TYPE_VIDEO,
527  .filter_frame = cudascale_filter_frame,
528  },
529  { NULL }
530 };
531 
532 static const AVFilterPad cudascale_outputs[] = {
533  {
534  .name = "default",
535  .type = AVMEDIA_TYPE_VIDEO,
536  .config_props = cudascale_config_props,
537  },
538  { NULL }
539 };
540 
542  .name = "scale_cuda",
543  .description = NULL_IF_CONFIG_SMALL("GPU accelerated video resizer"),
544 
545  .init = cudascale_init,
546  .uninit = cudascale_uninit,
547  .query_formats = cudascale_query_formats,
548 
549  .priv_size = sizeof(CUDAScaleContext),
550  .priv_class = &cudascale_class,
551 
552  .inputs = cudascale_inputs,
553  .outputs = cudascale_outputs,
554 
555  .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
556 };
#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:74
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
This structure describes decoded (raw) audio or video data.
Definition: frame.h:218
BYTE int const BYTE int src_pitch
Definition: avisynth_c.h:813
AVOption.
Definition: opt.h:246
const char * fmt
Definition: avisynth_c.h:769
CUfunction cu_func_uchar
Definition: vf_scale_cuda.c:82
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:67
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
Main libavfilter public API header.
const char * desc
Definition: nvenc.c:65
channels
Definition: aptx.c:30
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:68
CUcontext cu_ctx
Definition: vf_scale_cuda.c:79
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:580
char * w_expr
width expression string
Definition: vf_scale_cuda.c:76
#define src
Definition: vp8dsp.c:254
#define BLOCKX
Definition: vf_scale_cuda.c:52
CUdeviceptr srcBuffer
Definition: vf_scale_cuda.c:95
CUfunction cu_func_ushort
Definition: vf_scale_cuda.c:85
#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:65
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:556
#define AV_PIX_FMT_P016
Definition: pixfmt.h:414
const char * name
Pad name.
Definition: internal.h:60
#define AV_PIX_FMT_P010
Definition: pixfmt.h:413
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:53
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:87
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)
CUtexref cu_tex_ushort2
Definition: vf_scale_cuda.c:92
#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 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,...)
CUtexref cu_tex_uchar4
Definition: vf_scale_cuda.c:90
A filter pad used for either input or output.
Definition: internal.h:54
CUtexref cu_tex_ushort4
Definition: vf_scale_cuda.c:93
CUtexref cu_tex_ushort
Definition: vf_scale_cuda.c:91
int width
Definition: frame.h:276
#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:49
#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:2391
#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:77
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:85
like NV12, with 16bpp per component, little-endian
Definition: pixfmt.h:296
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:116
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
#define ALIGN_UP(a, b)
Definition: vf_scale_cuda.c:50
CUmodule cu_module
Definition: vf_scale_cuda.c:81
uint8_t w
Definition: llviddspenc.c:38
AVFormatContext * ctx
Definition: movenc.c:48
static const AVClass cudascale_class
FFmpeg internal API for CUDA.
CUfunction cu_func_uchar2
Definition: vf_scale_cuda.c:83
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:280
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
CUdeviceptr dstBuffer
Definition: vf_scale_cuda.c:96
HW acceleration through CUDA.
Definition: pixfmt.h:231
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:249
CUtexref cu_tex_uchar2
Definition: vf_scale_cuda.c:89
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:306
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
static av_cold void cudascale_uninit(AVFilterContext *ctx)
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
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
static av_cold int cudascale_config_props(AVFilterLink *outlink)
const char * name
Filter name.
Definition: avfilter.h:148
static int call_resize_kernel(CUDAScaleContext *s, CUfunction func, CUtexref tex, 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)
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:350
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
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:551
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:232
CUfunction cu_func_ushort2
Definition: vf_scale_cuda.c:86
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:140
A reference to a data buffer.
Definition: buffer.h:81
struct CUDAScaleContext::@201 planes_out[3]
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:62
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
enum AVPixelFormat in_fmt
Definition: vf_scale_cuda.c:57
int den
Denominator.
Definition: rational.h:60
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
struct CUDAScaleContext::@201 planes_in[3]
CUfunction cu_func_uchar4
Definition: vf_scale_cuda.c:84
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:276
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:2279
BYTE int dst_pitch
Definition: avisynth_c.h:813
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:60
static av_cold int init_stage(CUDAScaleContext *s, AVBufferRef *device_ctx)
enum AVPixelFormat out_fmt
Definition: vf_scale_cuda.c:58
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:652
CUtexref cu_tex_uchar
Definition: vf_scale_cuda.c:88