FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
cuviddec.c
Go to the documentation of this file.
1 /*
2  * Nvidia CUVID decoder
3  * Copyright (c) 2016 Timo Rothenpieler <timo@rothenpieler.org>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
23 
24 #include "libavutil/buffer.h"
25 #include "libavutil/mathematics.h"
26 #include "libavutil/hwcontext.h"
28 #include "libavutil/fifo.h"
29 #include "libavutil/log.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/pixdesc.h"
32 
33 #include "avcodec.h"
34 #include "decode.h"
35 #include "hwaccel.h"
36 #include "internal.h"
37 
38 typedef struct CuvidContext
39 {
41 
44 
45  char *cu_gpu;
48  char *crop_expr;
49  char *resize_expr;
50 
51  struct {
52  int left;
53  int top;
54  int right;
55  int bottom;
56  } crop;
57 
58  struct {
59  int width;
60  int height;
61  } resize;
62 
65 
67 
69 
72  int64_t prev_pts;
73 
76 
79 
81 
84 
87 } CuvidContext;
88 
89 typedef struct CuvidParsedFrame
90 {
95 
96 static int check_cu(AVCodecContext *avctx, CUresult err, const char *func)
97 {
98  CuvidContext *ctx = avctx->priv_data;
99  const char *err_name;
100  const char *err_string;
101 
102  av_log(avctx, AV_LOG_TRACE, "Calling %s\n", func);
103 
104  if (err == CUDA_SUCCESS)
105  return 0;
106 
107  ctx->cudl->cuGetErrorName(err, &err_name);
108  ctx->cudl->cuGetErrorString(err, &err_string);
109 
110  av_log(avctx, AV_LOG_ERROR, "%s failed", func);
111  if (err_name && err_string)
112  av_log(avctx, AV_LOG_ERROR, " -> %s: %s", err_name, err_string);
113  av_log(avctx, AV_LOG_ERROR, "\n");
114 
115  return AVERROR_EXTERNAL;
116 }
117 
118 #define CHECK_CU(x) check_cu(avctx, (x), #x)
119 
121 {
122  AVCodecContext *avctx = opaque;
123  CuvidContext *ctx = avctx->priv_data;
124  AVHWFramesContext *hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
125  CUVIDDECODECAPS *caps = NULL;
126  CUVIDDECODECREATEINFO cuinfo;
127  int surface_fmt;
128 
129  int old_width = avctx->width;
130  int old_height = avctx->height;
131 
133  AV_PIX_FMT_NONE, // Will be updated below
134  AV_PIX_FMT_NONE };
135 
136  av_log(avctx, AV_LOG_TRACE, "pfnSequenceCallback, progressive_sequence=%d\n", format->progressive_sequence);
137 
138  memset(&cuinfo, 0, sizeof(cuinfo));
139 
140  ctx->internal_error = 0;
141 
142  avctx->coded_width = cuinfo.ulWidth = format->coded_width;
143  avctx->coded_height = cuinfo.ulHeight = format->coded_height;
144 
145  // apply cropping
146  cuinfo.display_area.left = format->display_area.left + ctx->crop.left;
147  cuinfo.display_area.top = format->display_area.top + ctx->crop.top;
148  cuinfo.display_area.right = format->display_area.right - ctx->crop.right;
149  cuinfo.display_area.bottom = format->display_area.bottom - ctx->crop.bottom;
150 
151  // width and height need to be set before calling ff_get_format
152  if (ctx->resize_expr) {
153  avctx->width = ctx->resize.width;
154  avctx->height = ctx->resize.height;
155  } else {
156  avctx->width = cuinfo.display_area.right - cuinfo.display_area.left;
157  avctx->height = cuinfo.display_area.bottom - cuinfo.display_area.top;
158  }
159 
160  // target width/height need to be multiples of two
161  cuinfo.ulTargetWidth = avctx->width = (avctx->width + 1) & ~1;
162  cuinfo.ulTargetHeight = avctx->height = (avctx->height + 1) & ~1;
163 
164  // aspect ratio conversion, 1:1, depends on scaled resolution
165  cuinfo.target_rect.left = 0;
166  cuinfo.target_rect.top = 0;
167  cuinfo.target_rect.right = cuinfo.ulTargetWidth;
168  cuinfo.target_rect.bottom = cuinfo.ulTargetHeight;
169 
170  switch (format->bit_depth_luma_minus8) {
171  case 0: // 8-bit
173  caps = &ctx->caps8;
174  break;
175  case 2: // 10-bit
177  caps = &ctx->caps10;
178  break;
179  case 4: // 12-bit
181  caps = &ctx->caps12;
182  break;
183  default:
184  break;
185  }
186 
187  if (!caps || !caps->bIsSupported) {
188  av_log(avctx, AV_LOG_ERROR, "unsupported bit depth: %d\n",
189  format->bit_depth_luma_minus8 + 8);
190  ctx->internal_error = AVERROR(EINVAL);
191  return 0;
192  }
193 
194  surface_fmt = ff_get_format(avctx, pix_fmts);
195  if (surface_fmt < 0) {
196  av_log(avctx, AV_LOG_ERROR, "ff_get_format failed: %d\n", surface_fmt);
197  ctx->internal_error = AVERROR(EINVAL);
198  return 0;
199  }
200 
201  av_log(avctx, AV_LOG_VERBOSE, "Formats: Original: %s | HW: %s | SW: %s\n",
202  av_get_pix_fmt_name(avctx->pix_fmt),
203  av_get_pix_fmt_name(surface_fmt),
204  av_get_pix_fmt_name(avctx->sw_pix_fmt));
205 
206  avctx->pix_fmt = surface_fmt;
207 
208  // Update our hwframe ctx, as the get_format callback might have refreshed it!
209  if (avctx->hw_frames_ctx) {
210  av_buffer_unref(&ctx->hwframe);
211 
212  ctx->hwframe = av_buffer_ref(avctx->hw_frames_ctx);
213  if (!ctx->hwframe) {
214  ctx->internal_error = AVERROR(ENOMEM);
215  return 0;
216  }
217 
218  hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
219  }
220 
221  ff_set_sar(avctx, av_div_q(
222  (AVRational){ format->display_aspect_ratio.x, format->display_aspect_ratio.y },
223  (AVRational){ avctx->width, avctx->height }));
224 
225  ctx->deint_mode_current = format->progressive_sequence
227  : ctx->deint_mode;
228 
229  if (!format->progressive_sequence && ctx->deint_mode_current == cudaVideoDeinterlaceMode_Weave)
231  else
232  avctx->flags &= ~AV_CODEC_FLAG_INTERLACED_DCT;
233 
234  if (format->video_signal_description.video_full_range_flag)
235  avctx->color_range = AVCOL_RANGE_JPEG;
236  else
237  avctx->color_range = AVCOL_RANGE_MPEG;
238 
239  avctx->color_primaries = format->video_signal_description.color_primaries;
240  avctx->color_trc = format->video_signal_description.transfer_characteristics;
241  avctx->colorspace = format->video_signal_description.matrix_coefficients;
242 
243  if (format->bitrate)
244  avctx->bit_rate = format->bitrate;
245 
246  if (format->frame_rate.numerator && format->frame_rate.denominator) {
247  avctx->framerate.num = format->frame_rate.numerator;
248  avctx->framerate.den = format->frame_rate.denominator;
249  }
250 
251  if (ctx->cudecoder
252  && avctx->coded_width == format->coded_width
253  && avctx->coded_height == format->coded_height
254  && avctx->width == old_width
255  && avctx->height == old_height
256  && ctx->chroma_format == format->chroma_format
257  && ctx->codec_type == format->codec)
258  return 1;
259 
260  if (ctx->cudecoder) {
261  av_log(avctx, AV_LOG_TRACE, "Re-initializing decoder\n");
262  ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder));
263  if (ctx->internal_error < 0)
264  return 0;
265  ctx->cudecoder = NULL;
266  }
267 
268  if (hwframe_ctx->pool && (
269  hwframe_ctx->width < avctx->width ||
270  hwframe_ctx->height < avctx->height ||
271  hwframe_ctx->format != AV_PIX_FMT_CUDA ||
272  hwframe_ctx->sw_format != avctx->sw_pix_fmt)) {
273  av_log(avctx, AV_LOG_ERROR, "AVHWFramesContext is already initialized with incompatible parameters\n");
274  av_log(avctx, AV_LOG_DEBUG, "width: %d <-> %d\n", hwframe_ctx->width, avctx->width);
275  av_log(avctx, AV_LOG_DEBUG, "height: %d <-> %d\n", hwframe_ctx->height, avctx->height);
276  av_log(avctx, AV_LOG_DEBUG, "format: %s <-> cuda\n", av_get_pix_fmt_name(hwframe_ctx->format));
277  av_log(avctx, AV_LOG_DEBUG, "sw_format: %s <-> %s\n",
278  av_get_pix_fmt_name(hwframe_ctx->sw_format), av_get_pix_fmt_name(avctx->sw_pix_fmt));
279  ctx->internal_error = AVERROR(EINVAL);
280  return 0;
281  }
282 
283  if (format->chroma_format != cudaVideoChromaFormat_420) {
284  av_log(avctx, AV_LOG_ERROR, "Chroma formats other than 420 are not supported\n");
285  ctx->internal_error = AVERROR(EINVAL);
286  return 0;
287  }
288 
289  ctx->chroma_format = format->chroma_format;
290 
291  cuinfo.CodecType = ctx->codec_type = format->codec;
292  cuinfo.ChromaFormat = format->chroma_format;
293 
294  switch (avctx->sw_pix_fmt) {
295  case AV_PIX_FMT_NV12:
296  cuinfo.OutputFormat = cudaVideoSurfaceFormat_NV12;
297  break;
298  case AV_PIX_FMT_P010:
299  case AV_PIX_FMT_P016:
300  cuinfo.OutputFormat = cudaVideoSurfaceFormat_P016;
301  break;
302  default:
303  av_log(avctx, AV_LOG_ERROR, "Output formats other than NV12, P010 or P016 are not supported\n");
304  ctx->internal_error = AVERROR(EINVAL);
305  return 0;
306  }
307 
308  cuinfo.ulNumDecodeSurfaces = ctx->nb_surfaces;
309  cuinfo.ulNumOutputSurfaces = 1;
310  cuinfo.ulCreationFlags = cudaVideoCreate_PreferCUVID;
311  cuinfo.bitDepthMinus8 = format->bit_depth_luma_minus8;
312  cuinfo.DeinterlaceMode = ctx->deint_mode_current;
313 
314  if (ctx->deint_mode_current != cudaVideoDeinterlaceMode_Weave && !ctx->drop_second_field)
315  avctx->framerate = av_mul_q(avctx->framerate, (AVRational){2, 1});
316 
317  ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidCreateDecoder(&ctx->cudecoder, &cuinfo));
318  if (ctx->internal_error < 0)
319  return 0;
320 
321  if (!hwframe_ctx->pool) {
322  hwframe_ctx->format = AV_PIX_FMT_CUDA;
323  hwframe_ctx->sw_format = avctx->sw_pix_fmt;
324  hwframe_ctx->width = avctx->width;
325  hwframe_ctx->height = avctx->height;
326 
327  if ((ctx->internal_error = av_hwframe_ctx_init(ctx->hwframe)) < 0) {
328  av_log(avctx, AV_LOG_ERROR, "av_hwframe_ctx_init failed\n");
329  return 0;
330  }
331  }
332 
333  return 1;
334 }
335 
336 static int CUDAAPI cuvid_handle_picture_decode(void *opaque, CUVIDPICPARAMS* picparams)
337 {
338  AVCodecContext *avctx = opaque;
339  CuvidContext *ctx = avctx->priv_data;
340 
341  av_log(avctx, AV_LOG_TRACE, "pfnDecodePicture\n");
342 
343  ctx->internal_error = CHECK_CU(ctx->cvdl->cuvidDecodePicture(ctx->cudecoder, picparams));
344  if (ctx->internal_error < 0)
345  return 0;
346 
347  return 1;
348 }
349 
350 static int CUDAAPI cuvid_handle_picture_display(void *opaque, CUVIDPARSERDISPINFO* dispinfo)
351 {
352  AVCodecContext *avctx = opaque;
353  CuvidContext *ctx = avctx->priv_data;
354  CuvidParsedFrame parsed_frame = { { 0 } };
355 
356  parsed_frame.dispinfo = *dispinfo;
357  ctx->internal_error = 0;
358 
360  av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
361  } else {
362  parsed_frame.is_deinterlacing = 1;
363  av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
364  if (!ctx->drop_second_field) {
365  parsed_frame.second_field = 1;
366  av_fifo_generic_write(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
367  }
368  }
369 
370  return 1;
371 }
372 
374 {
375  CuvidContext *ctx = avctx->priv_data;
376 
377  return (av_fifo_size(ctx->frame_queue) / sizeof(CuvidParsedFrame)) + 2 > ctx->nb_surfaces;
378 }
379 
380 static int cuvid_decode_packet(AVCodecContext *avctx, const AVPacket *avpkt)
381 {
382  CuvidContext *ctx = avctx->priv_data;
383  AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
384  AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
385  CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
386  CUVIDSOURCEDATAPACKET cupkt;
387  AVPacket filter_packet = { 0 };
388  AVPacket filtered_packet = { 0 };
389  int ret = 0, eret = 0, is_flush = ctx->decoder_flushing;
390 
391  av_log(avctx, AV_LOG_TRACE, "cuvid_decode_packet\n");
392 
393  if (is_flush && avpkt && avpkt->size)
394  return AVERROR_EOF;
395 
396  if (cuvid_is_buffer_full(avctx) && avpkt && avpkt->size)
397  return AVERROR(EAGAIN);
398 
399  if (ctx->bsf && avpkt && avpkt->size) {
400  if ((ret = av_packet_ref(&filter_packet, avpkt)) < 0) {
401  av_log(avctx, AV_LOG_ERROR, "av_packet_ref failed\n");
402  return ret;
403  }
404 
405  if ((ret = av_bsf_send_packet(ctx->bsf, &filter_packet)) < 0) {
406  av_log(avctx, AV_LOG_ERROR, "av_bsf_send_packet failed\n");
408  return ret;
409  }
410 
411  if ((ret = av_bsf_receive_packet(ctx->bsf, &filtered_packet)) < 0) {
412  av_log(avctx, AV_LOG_ERROR, "av_bsf_receive_packet failed\n");
413  return ret;
414  }
415 
416  avpkt = &filtered_packet;
417  }
418 
419  ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
420  if (ret < 0) {
421  av_packet_unref(&filtered_packet);
422  return ret;
423  }
424 
425  memset(&cupkt, 0, sizeof(cupkt));
426 
427  if (avpkt && avpkt->size) {
428  cupkt.payload_size = avpkt->size;
429  cupkt.payload = avpkt->data;
430 
431  if (avpkt->pts != AV_NOPTS_VALUE) {
432  cupkt.flags = CUVID_PKT_TIMESTAMP;
433  if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)
434  cupkt.timestamp = av_rescale_q(avpkt->pts, avctx->pkt_timebase, (AVRational){1, 10000000});
435  else
436  cupkt.timestamp = avpkt->pts;
437  }
438  } else {
439  cupkt.flags = CUVID_PKT_ENDOFSTREAM;
440  ctx->decoder_flushing = 1;
441  }
442 
443  ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &cupkt));
444 
445  av_packet_unref(&filtered_packet);
446 
447  if (ret < 0)
448  goto error;
449 
450  // cuvidParseVideoData doesn't return an error just because stuff failed...
451  if (ctx->internal_error) {
452  av_log(avctx, AV_LOG_ERROR, "cuvid decode callback error\n");
453  ret = ctx->internal_error;
454  goto error;
455  }
456 
457 error:
458  eret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
459 
460  if (eret < 0)
461  return eret;
462  else if (ret < 0)
463  return ret;
464  else if (is_flush)
465  return AVERROR_EOF;
466  else
467  return 0;
468 }
469 
471 {
472  CuvidContext *ctx = avctx->priv_data;
473  AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
474  AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
475  CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
476  CUdeviceptr mapped_frame = 0;
477  int ret = 0, eret = 0;
478 
479  av_log(avctx, AV_LOG_TRACE, "cuvid_output_frame\n");
480 
481  if (ctx->decoder_flushing) {
482  ret = cuvid_decode_packet(avctx, NULL);
483  if (ret < 0 && ret != AVERROR_EOF)
484  return ret;
485  }
486 
487  if (!cuvid_is_buffer_full(avctx)) {
488  AVPacket pkt = {0};
489  ret = ff_decode_get_packet(avctx, &pkt);
490  if (ret < 0 && ret != AVERROR_EOF)
491  return ret;
492  ret = cuvid_decode_packet(avctx, &pkt);
493  av_packet_unref(&pkt);
494  // cuvid_is_buffer_full() should avoid this.
495  if (ret == AVERROR(EAGAIN))
496  ret = AVERROR_EXTERNAL;
497  if (ret < 0 && ret != AVERROR_EOF)
498  return ret;
499  }
500 
501  ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
502  if (ret < 0)
503  return ret;
504 
505  if (av_fifo_size(ctx->frame_queue)) {
506  CuvidParsedFrame parsed_frame;
508  unsigned int pitch = 0;
509  int offset = 0;
510  int i;
511 
512  av_fifo_generic_read(ctx->frame_queue, &parsed_frame, sizeof(CuvidParsedFrame), NULL);
513 
514  memset(&params, 0, sizeof(params));
515  params.progressive_frame = parsed_frame.dispinfo.progressive_frame;
516  params.second_field = parsed_frame.second_field;
517  params.top_field_first = parsed_frame.dispinfo.top_field_first;
518 
519  ret = CHECK_CU(ctx->cvdl->cuvidMapVideoFrame(ctx->cudecoder, parsed_frame.dispinfo.picture_index, &mapped_frame, &pitch, &params));
520  if (ret < 0)
521  goto error;
522 
523  if (avctx->pix_fmt == AV_PIX_FMT_CUDA) {
524  ret = av_hwframe_get_buffer(ctx->hwframe, frame, 0);
525  if (ret < 0) {
526  av_log(avctx, AV_LOG_ERROR, "av_hwframe_get_buffer failed\n");
527  goto error;
528  }
529 
530  ret = ff_decode_frame_props(avctx, frame);
531  if (ret < 0) {
532  av_log(avctx, AV_LOG_ERROR, "ff_decode_frame_props failed\n");
533  goto error;
534  }
535 
536  for (i = 0; i < 2; i++) {
537  CUDA_MEMCPY2D cpy = {
539  .dstMemoryType = CU_MEMORYTYPE_DEVICE,
540  .srcDevice = mapped_frame,
541  .dstDevice = (CUdeviceptr)frame->data[i],
542  .srcPitch = pitch,
543  .dstPitch = frame->linesize[i],
544  .srcY = offset,
545  .WidthInBytes = FFMIN(pitch, frame->linesize[i]),
546  .Height = avctx->height >> (i ? 1 : 0),
547  };
548 
549  ret = CHECK_CU(ctx->cudl->cuMemcpy2D(&cpy));
550  if (ret < 0)
551  goto error;
552 
553  offset += avctx->height;
554  }
555  } else if (avctx->pix_fmt == AV_PIX_FMT_NV12 ||
556  avctx->pix_fmt == AV_PIX_FMT_P010 ||
557  avctx->pix_fmt == AV_PIX_FMT_P016) {
558  AVFrame *tmp_frame = av_frame_alloc();
559  if (!tmp_frame) {
560  av_log(avctx, AV_LOG_ERROR, "av_frame_alloc failed\n");
561  ret = AVERROR(ENOMEM);
562  goto error;
563  }
564 
565  tmp_frame->format = AV_PIX_FMT_CUDA;
566  tmp_frame->hw_frames_ctx = av_buffer_ref(ctx->hwframe);
567  tmp_frame->data[0] = (uint8_t*)mapped_frame;
568  tmp_frame->linesize[0] = pitch;
569  tmp_frame->data[1] = (uint8_t*)(mapped_frame + avctx->height * pitch);
570  tmp_frame->linesize[1] = pitch;
571  tmp_frame->width = avctx->width;
572  tmp_frame->height = avctx->height;
573 
574  ret = ff_get_buffer(avctx, frame, 0);
575  if (ret < 0) {
576  av_log(avctx, AV_LOG_ERROR, "ff_get_buffer failed\n");
577  av_frame_free(&tmp_frame);
578  goto error;
579  }
580 
581  ret = av_hwframe_transfer_data(frame, tmp_frame, 0);
582  if (ret) {
583  av_log(avctx, AV_LOG_ERROR, "av_hwframe_transfer_data failed\n");
584  av_frame_free(&tmp_frame);
585  goto error;
586  }
587  av_frame_free(&tmp_frame);
588  } else {
589  ret = AVERROR_BUG;
590  goto error;
591  }
592 
593  frame->width = avctx->width;
594  frame->height = avctx->height;
595  if (avctx->pkt_timebase.num && avctx->pkt_timebase.den)
596  frame->pts = av_rescale_q(parsed_frame.dispinfo.timestamp, (AVRational){1, 10000000}, avctx->pkt_timebase);
597  else
598  frame->pts = parsed_frame.dispinfo.timestamp;
599 
600  if (parsed_frame.second_field) {
601  if (ctx->prev_pts == INT64_MIN) {
602  ctx->prev_pts = frame->pts;
603  frame->pts += (avctx->pkt_timebase.den * avctx->framerate.den) / (avctx->pkt_timebase.num * avctx->framerate.num);
604  } else {
605  int pts_diff = (frame->pts - ctx->prev_pts) / 2;
606  ctx->prev_pts = frame->pts;
607  frame->pts += pts_diff;
608  }
609  }
610 
611  /* CUVIDs opaque reordering breaks the internal pkt logic.
612  * So set pkt_pts and clear all the other pkt_ fields.
613  */
614 #if FF_API_PKT_PTS
616  frame->pkt_pts = frame->pts;
618 #endif
619  frame->pkt_pos = -1;
620  frame->pkt_duration = 0;
621  frame->pkt_size = -1;
622 
623  frame->interlaced_frame = !parsed_frame.is_deinterlacing && !parsed_frame.dispinfo.progressive_frame;
624 
625  if (frame->interlaced_frame)
626  frame->top_field_first = parsed_frame.dispinfo.top_field_first;
627  } else if (ctx->decoder_flushing) {
628  ret = AVERROR_EOF;
629  } else {
630  ret = AVERROR(EAGAIN);
631  }
632 
633 error:
634  if (mapped_frame)
635  eret = CHECK_CU(ctx->cvdl->cuvidUnmapVideoFrame(ctx->cudecoder, mapped_frame));
636 
637  eret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
638 
639  if (eret < 0)
640  return eret;
641  else
642  return ret;
643 }
644 
645 static int cuvid_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
646 {
647  CuvidContext *ctx = avctx->priv_data;
648  AVFrame *frame = data;
649  int ret = 0;
650 
651  av_log(avctx, AV_LOG_TRACE, "cuvid_decode_frame\n");
652 
654  av_log(avctx, AV_LOG_ERROR, "Deinterlacing is not supported via the old API\n");
655  return AVERROR(EINVAL);
656  }
657 
658  if (!ctx->decoder_flushing) {
659  ret = cuvid_decode_packet(avctx, avpkt);
660  if (ret < 0)
661  return ret;
662  }
663 
664  ret = cuvid_output_frame(avctx, frame);
665  if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
666  *got_frame = 0;
667  } else if (ret < 0) {
668  return ret;
669  } else {
670  *got_frame = 1;
671  }
672 
673  return 0;
674 }
675 
677 {
678  CuvidContext *ctx = avctx->priv_data;
679 
680  av_fifo_freep(&ctx->frame_queue);
681 
682  if (ctx->bsf)
683  av_bsf_free(&ctx->bsf);
684 
685  if (ctx->cuparser)
687 
688  if (ctx->cudecoder)
689  ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);
690 
691  ctx->cudl = NULL;
692 
693  av_buffer_unref(&ctx->hwframe);
694  av_buffer_unref(&ctx->hwdevice);
695 
696  cuvid_free_functions(&ctx->cvdl);
697 
698  return 0;
699 }
700 
702  const CUVIDPARSERPARAMS *cuparseinfo,
703  int probed_width,
704  int probed_height,
705  int bit_depth)
706 {
707  CuvidContext *ctx = avctx->priv_data;
708  CUVIDDECODECAPS *caps;
709  int res8 = 0, res10 = 0, res12 = 0;
710 
711  if (!ctx->cvdl->cuvidGetDecoderCaps) {
712  av_log(avctx, AV_LOG_WARNING, "Used Nvidia driver is too old to perform a capability check.\n");
713  av_log(avctx, AV_LOG_WARNING, "The minimum required version is "
714 #if defined(_WIN32) || defined(__CYGWIN__)
715  "378.66"
716 #else
717  "378.13"
718 #endif
719  ". Continuing blind.\n");
720  ctx->caps8.bIsSupported = ctx->caps10.bIsSupported = 1;
721  // 12 bit was not supported before the capability check was introduced, so disable it.
722  ctx->caps12.bIsSupported = 0;
723  return 0;
724  }
725 
727  = cuparseinfo->CodecType;
730 
731  ctx->caps8.nBitDepthMinus8 = 0;
732  ctx->caps10.nBitDepthMinus8 = 2;
733  ctx->caps12.nBitDepthMinus8 = 4;
734 
735  res8 = CHECK_CU(ctx->cvdl->cuvidGetDecoderCaps(&ctx->caps8));
736  res10 = CHECK_CU(ctx->cvdl->cuvidGetDecoderCaps(&ctx->caps10));
737  res12 = CHECK_CU(ctx->cvdl->cuvidGetDecoderCaps(&ctx->caps12));
738 
739  av_log(avctx, AV_LOG_VERBOSE, "CUVID capabilities for %s:\n", avctx->codec->name);
740  av_log(avctx, AV_LOG_VERBOSE, "8 bit: supported: %d, min_width: %d, max_width: %d, min_height: %d, max_height: %d\n",
742  av_log(avctx, AV_LOG_VERBOSE, "10 bit: supported: %d, min_width: %d, max_width: %d, min_height: %d, max_height: %d\n",
744  av_log(avctx, AV_LOG_VERBOSE, "12 bit: supported: %d, min_width: %d, max_width: %d, min_height: %d, max_height: %d\n",
746 
747  switch (bit_depth) {
748  case 10:
749  caps = &ctx->caps10;
750  if (res10 < 0)
751  return res10;
752  break;
753  case 12:
754  caps = &ctx->caps12;
755  if (res12 < 0)
756  return res12;
757  break;
758  default:
759  caps = &ctx->caps8;
760  if (res8 < 0)
761  return res8;
762  }
763 
764  if (!ctx->caps8.bIsSupported) {
765  av_log(avctx, AV_LOG_ERROR, "Codec %s is not supported.\n", avctx->codec->name);
766  return AVERROR(EINVAL);
767  }
768 
769  if (!caps->bIsSupported) {
770  av_log(avctx, AV_LOG_ERROR, "Bit depth %d is not supported.\n", bit_depth);
771  return AVERROR(EINVAL);
772  }
773 
774  if (probed_width > caps->nMaxWidth || probed_width < caps->nMinWidth) {
775  av_log(avctx, AV_LOG_ERROR, "Video width %d not within range from %d to %d\n",
776  probed_width, caps->nMinWidth, caps->nMaxWidth);
777  return AVERROR(EINVAL);
778  }
779 
780  if (probed_height > caps->nMaxHeight || probed_height < caps->nMinHeight) {
781  av_log(avctx, AV_LOG_ERROR, "Video height %d not within range from %d to %d\n",
782  probed_height, caps->nMinHeight, caps->nMaxHeight);
783  return AVERROR(EINVAL);
784  }
785 
786  return 0;
787 }
788 
790 {
791  CuvidContext *ctx = avctx->priv_data;
792  AVCUDADeviceContext *device_hwctx;
793  AVHWDeviceContext *device_ctx;
794  AVHWFramesContext *hwframe_ctx;
795  CUVIDSOURCEDATAPACKET seq_pkt;
796  CUcontext cuda_ctx = NULL;
798  const AVBitStreamFilter *bsf;
799  int ret = 0;
800 
803  AV_PIX_FMT_NONE };
804 
805  int probed_width = avctx->coded_width ? avctx->coded_width : 1280;
806  int probed_height = avctx->coded_height ? avctx->coded_height : 720;
807  int probed_bit_depth = 8;
808 
809  const AVPixFmtDescriptor *probe_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
810  if (probe_desc && probe_desc->nb_components)
811  probed_bit_depth = probe_desc->comp[0].depth;
812 
813  // Accelerated transcoding scenarios with 'ffmpeg' require that the
814  // pix_fmt be set to AV_PIX_FMT_CUDA early. The sw_pix_fmt, and the
815  // pix_fmt for non-accelerated transcoding, do not need to be correct
816  // but need to be set to something. We arbitrarily pick NV12.
817  ret = ff_get_format(avctx, pix_fmts);
818  if (ret < 0) {
819  av_log(avctx, AV_LOG_ERROR, "ff_get_format failed: %d\n", ret);
820  return ret;
821  }
822  avctx->pix_fmt = ret;
823 
824  if (ctx->resize_expr && sscanf(ctx->resize_expr, "%dx%d",
825  &ctx->resize.width, &ctx->resize.height) != 2) {
826  av_log(avctx, AV_LOG_ERROR, "Invalid resize expressions\n");
827  ret = AVERROR(EINVAL);
828  goto error;
829  }
830 
831  if (ctx->crop_expr && sscanf(ctx->crop_expr, "%dx%dx%dx%d",
832  &ctx->crop.top, &ctx->crop.bottom,
833  &ctx->crop.left, &ctx->crop.right) != 4) {
834  av_log(avctx, AV_LOG_ERROR, "Invalid cropping expressions\n");
835  ret = AVERROR(EINVAL);
836  goto error;
837  }
838 
839  ret = cuvid_load_functions(&ctx->cvdl, avctx);
840  if (ret < 0) {
841  av_log(avctx, AV_LOG_ERROR, "Failed loading nvcuvid.\n");
842  goto error;
843  }
844 
845  ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
846  if (!ctx->frame_queue) {
847  ret = AVERROR(ENOMEM);
848  goto error;
849  }
850 
851  if (avctx->hw_frames_ctx) {
852  ctx->hwframe = av_buffer_ref(avctx->hw_frames_ctx);
853  if (!ctx->hwframe) {
854  ret = AVERROR(ENOMEM);
855  goto error;
856  }
857 
858  hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
859 
860  ctx->hwdevice = av_buffer_ref(hwframe_ctx->device_ref);
861  if (!ctx->hwdevice) {
862  ret = AVERROR(ENOMEM);
863  goto error;
864  }
865  } else {
866  if (avctx->hw_device_ctx) {
867  ctx->hwdevice = av_buffer_ref(avctx->hw_device_ctx);
868  if (!ctx->hwdevice) {
869  ret = AVERROR(ENOMEM);
870  goto error;
871  }
872  } else {
874  if (ret < 0)
875  goto error;
876  }
877 
879  if (!ctx->hwframe) {
880  av_log(avctx, AV_LOG_ERROR, "av_hwframe_ctx_alloc failed\n");
881  ret = AVERROR(ENOMEM);
882  goto error;
883  }
884 
885  hwframe_ctx = (AVHWFramesContext*)ctx->hwframe->data;
886  }
887 
888  device_ctx = hwframe_ctx->device_ctx;
889  device_hwctx = device_ctx->hwctx;
890 
891  cuda_ctx = device_hwctx->cuda_ctx;
892  ctx->cudl = device_hwctx->internal->cuda_dl;
893 
894  memset(&ctx->cuparseinfo, 0, sizeof(ctx->cuparseinfo));
895  memset(&ctx->cuparse_ext, 0, sizeof(ctx->cuparse_ext));
896  memset(&seq_pkt, 0, sizeof(seq_pkt));
897 
899 
900  switch (avctx->codec->id) {
901 #if CONFIG_H264_CUVID_DECODER
902  case AV_CODEC_ID_H264:
904  break;
905 #endif
906 #if CONFIG_HEVC_CUVID_DECODER
907  case AV_CODEC_ID_HEVC:
909  break;
910 #endif
911 #if CONFIG_MJPEG_CUVID_DECODER
912  case AV_CODEC_ID_MJPEG:
914  break;
915 #endif
916 #if CONFIG_MPEG1_CUVID_DECODER
919  break;
920 #endif
921 #if CONFIG_MPEG2_CUVID_DECODER
924  break;
925 #endif
926 #if CONFIG_MPEG4_CUVID_DECODER
927  case AV_CODEC_ID_MPEG4:
929  break;
930 #endif
931 #if CONFIG_VP8_CUVID_DECODER
932  case AV_CODEC_ID_VP8:
934  break;
935 #endif
936 #if CONFIG_VP9_CUVID_DECODER
937  case AV_CODEC_ID_VP9:
939  break;
940 #endif
941 #if CONFIG_VC1_CUVID_DECODER
942  case AV_CODEC_ID_VC1:
944  break;
945 #endif
946  default:
947  av_log(avctx, AV_LOG_ERROR, "Invalid CUVID codec!\n");
948  return AVERROR_BUG;
949  }
950 
951  if (avctx->codec->id == AV_CODEC_ID_H264 || avctx->codec->id == AV_CODEC_ID_HEVC) {
952  if (avctx->codec->id == AV_CODEC_ID_H264)
953  bsf = av_bsf_get_by_name("h264_mp4toannexb");
954  else
955  bsf = av_bsf_get_by_name("hevc_mp4toannexb");
956 
957  if (!bsf) {
958  ret = AVERROR_BSF_NOT_FOUND;
959  goto error;
960  }
961  if (ret = av_bsf_alloc(bsf, &ctx->bsf)) {
962  goto error;
963  }
964  if (((ret = avcodec_parameters_from_context(ctx->bsf->par_in, avctx)) < 0) || ((ret = av_bsf_init(ctx->bsf)) < 0)) {
965  av_bsf_free(&ctx->bsf);
966  goto error;
967  }
968 
970  memcpy(ctx->cuparse_ext.raw_seqhdr_data,
971  ctx->bsf->par_out->extradata,
973  } else if (avctx->extradata_size > 0) {
975  memcpy(ctx->cuparse_ext.raw_seqhdr_data,
976  avctx->extradata,
977  FFMIN(sizeof(ctx->cuparse_ext.raw_seqhdr_data), avctx->extradata_size));
978  }
979 
982  ctx->cuparseinfo.pUserData = avctx;
986 
987  ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
988  if (ret < 0)
989  goto error;
990 
991  ret = cuvid_test_capabilities(avctx, &ctx->cuparseinfo,
992  probed_width,
993  probed_height,
994  probed_bit_depth);
995  if (ret < 0)
996  goto error;
997 
998  ret = CHECK_CU(ctx->cvdl->cuvidCreateVideoParser(&ctx->cuparser, &ctx->cuparseinfo));
999  if (ret < 0)
1000  goto error;
1001 
1002  seq_pkt.payload = ctx->cuparse_ext.raw_seqhdr_data;
1004 
1005  if (seq_pkt.payload && seq_pkt.payload_size) {
1006  ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &seq_pkt));
1007  if (ret < 0)
1008  goto error;
1009  }
1010 
1011  ret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
1012  if (ret < 0)
1013  goto error;
1014 
1015  ctx->prev_pts = INT64_MIN;
1016 
1017  if (!avctx->pkt_timebase.num || !avctx->pkt_timebase.den)
1018  av_log(avctx, AV_LOG_WARNING, "Invalid pkt_timebase, passing timestamps as-is.\n");
1019 
1020  return 0;
1021 
1022 error:
1023  cuvid_decode_end(avctx);
1024  return ret;
1025 }
1026 
1027 static void cuvid_flush(AVCodecContext *avctx)
1028 {
1029  CuvidContext *ctx = avctx->priv_data;
1030  AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)ctx->hwdevice->data;
1031  AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
1032  CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
1033  CUVIDSOURCEDATAPACKET seq_pkt = { 0 };
1034  int ret;
1035 
1036  ret = CHECK_CU(ctx->cudl->cuCtxPushCurrent(cuda_ctx));
1037  if (ret < 0)
1038  goto error;
1039 
1040  av_fifo_freep(&ctx->frame_queue);
1041 
1042  ctx->frame_queue = av_fifo_alloc(ctx->nb_surfaces * sizeof(CuvidParsedFrame));
1043  if (!ctx->frame_queue) {
1044  av_log(avctx, AV_LOG_ERROR, "Failed to recreate frame queue on flush\n");
1045  return;
1046  }
1047 
1048  if (ctx->cudecoder) {
1049  ctx->cvdl->cuvidDestroyDecoder(ctx->cudecoder);
1050  ctx->cudecoder = NULL;
1051  }
1052 
1053  if (ctx->cuparser) {
1054  ctx->cvdl->cuvidDestroyVideoParser(ctx->cuparser);
1055  ctx->cuparser = NULL;
1056  }
1057 
1058  ret = CHECK_CU(ctx->cvdl->cuvidCreateVideoParser(&ctx->cuparser, &ctx->cuparseinfo));
1059  if (ret < 0)
1060  goto error;
1061 
1062  seq_pkt.payload = ctx->cuparse_ext.raw_seqhdr_data;
1063  seq_pkt.payload_size = ctx->cuparse_ext.format.seqhdr_data_length;
1064 
1065  if (seq_pkt.payload && seq_pkt.payload_size) {
1066  ret = CHECK_CU(ctx->cvdl->cuvidParseVideoData(ctx->cuparser, &seq_pkt));
1067  if (ret < 0)
1068  goto error;
1069  }
1070 
1071  ret = CHECK_CU(ctx->cudl->cuCtxPopCurrent(&dummy));
1072  if (ret < 0)
1073  goto error;
1074 
1075  ctx->prev_pts = INT64_MIN;
1076  ctx->decoder_flushing = 0;
1077 
1078  return;
1079  error:
1080  av_log(avctx, AV_LOG_ERROR, "CUDA reinit on flush failed\n");
1081 }
1082 
1083 #define OFFSET(x) offsetof(CuvidContext, x)
1084 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
1085 static const AVOption options[] = {
1086  { "deint", "Set deinterlacing mode", OFFSET(deint_mode), AV_OPT_TYPE_INT, { .i64 = cudaVideoDeinterlaceMode_Weave }, cudaVideoDeinterlaceMode_Weave, cudaVideoDeinterlaceMode_Adaptive, VD, "deint" },
1087  { "weave", "Weave deinterlacing (do nothing)", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Weave }, 0, 0, VD, "deint" },
1088  { "bob", "Bob deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Bob }, 0, 0, VD, "deint" },
1089  { "adaptive", "Adaptive deinterlacing", 0, AV_OPT_TYPE_CONST, { .i64 = cudaVideoDeinterlaceMode_Adaptive }, 0, 0, VD, "deint" },
1090  { "gpu", "GPU to be used for decoding", OFFSET(cu_gpu), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1091  { "surfaces", "Maximum surfaces to be used for decoding", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, INT_MAX, VD },
1092  { "drop_second_field", "Drop second field when deinterlacing", OFFSET(drop_second_field), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
1093  { "crop", "Crop (top)x(bottom)x(left)x(right)", OFFSET(crop_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1094  { "resize", "Resize (width)x(height)", OFFSET(resize_expr), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, VD },
1095  { NULL }
1096 };
1097 
1099  &(const AVCodecHWConfigInternal) {
1100  .public = {
1104  .device_type = AV_HWDEVICE_TYPE_CUDA
1105  },
1106  .hwaccel = NULL,
1107  },
1108  NULL
1109 };
1110 
1111 #define DEFINE_CUVID_CODEC(x, X) \
1112  static const AVClass x##_cuvid_class = { \
1113  .class_name = #x "_cuvid", \
1114  .item_name = av_default_item_name, \
1115  .option = options, \
1116  .version = LIBAVUTIL_VERSION_INT, \
1117  }; \
1118  AVCodec ff_##x##_cuvid_decoder = { \
1119  .name = #x "_cuvid", \
1120  .long_name = NULL_IF_CONFIG_SMALL("Nvidia CUVID " #X " decoder"), \
1121  .type = AVMEDIA_TYPE_VIDEO, \
1122  .id = AV_CODEC_ID_##X, \
1123  .priv_data_size = sizeof(CuvidContext), \
1124  .priv_class = &x##_cuvid_class, \
1125  .init = cuvid_decode_init, \
1126  .close = cuvid_decode_end, \
1127  .decode = cuvid_decode_frame, \
1128  .receive_frame = cuvid_output_frame, \
1129  .flush = cuvid_flush, \
1130  .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING, \
1131  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_CUDA, \
1132  AV_PIX_FMT_NV12, \
1133  AV_PIX_FMT_P010, \
1134  AV_PIX_FMT_P016, \
1135  AV_PIX_FMT_NONE }, \
1136  .hw_configs = cuvid_hw_configs, \
1137  };
1138 
1139 #if CONFIG_HEVC_CUVID_DECODER
1140 DEFINE_CUVID_CODEC(hevc, HEVC)
1141 #endif
1142 
1143 #if CONFIG_H264_CUVID_DECODER
1144 DEFINE_CUVID_CODEC(h264, H264)
1145 #endif
1146 
1147 #if CONFIG_MJPEG_CUVID_DECODER
1148 DEFINE_CUVID_CODEC(mjpeg, MJPEG)
1149 #endif
1150 
1151 #if CONFIG_MPEG1_CUVID_DECODER
1152 DEFINE_CUVID_CODEC(mpeg1, MPEG1VIDEO)
1153 #endif
1154 
1155 #if CONFIG_MPEG2_CUVID_DECODER
1156 DEFINE_CUVID_CODEC(mpeg2, MPEG2VIDEO)
1157 #endif
1158 
1159 #if CONFIG_MPEG4_CUVID_DECODER
1160 DEFINE_CUVID_CODEC(mpeg4, MPEG4)
1161 #endif
1162 
1163 #if CONFIG_VP8_CUVID_DECODER
1164 DEFINE_CUVID_CODEC(vp8, VP8)
1165 #endif
1166 
1167 #if CONFIG_VP9_CUVID_DECODER
1168 DEFINE_CUVID_CODEC(vp9, VP9)
1169 #endif
1170 
1171 #if CONFIG_VC1_CUVID_DECODER
1172 DEFINE_CUVID_CODEC(vc1, VC1)
1173 #endif
This struct aggregates all the (hardware/vendor-specific) "high-level" state, i.e.
Definition: hwcontext.h:59
AVCodecHWConfig public
This is the structure which will be returned to the user by avcodec_get_hw_config().
Definition: hwaccel.h:34
void av_bsf_free(AVBSFContext **ctx)
Free a bitstream filter context and everything associated with it; write NULL into the supplied point...
Definition: bsf.c:35
#define NULL
Definition: coverity.c:32
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
Select the (possibly hardware accelerated) pixel format.
Definition: decode.c:1288
const struct AVCodec * codec
Definition: avcodec.h:1497
AVRational framerate
Definition: avcodec.h:2998
char * crop_expr
Definition: cuviddec.c:48
AVCodecParameters * par_out
Parameters of the output stream.
Definition: avcodec.h:5591
unsigned char raw_seqhdr_data[1024]
OUT: Sequence header data.
int decoder_flushing
Definition: cuviddec.c:75
AVRational av_div_q(AVRational b, AVRational c)
Divide one rational by another.
Definition: rational.c:88
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:2363
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
tcu_ulong payload_size
IN: number of bytes in the payload (may be zero if EOS flag is set)
AVBufferRef * hwdevice
Definition: cuviddec.c:63
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
struct CuvidContext::@63 crop
#define AV_CODEC_FLAG_INTERLACED_DCT
Use interlaced DCT.
Definition: avcodec.h:871
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1675
int64_t pkt_pos
reordered pos from the last AVPacket that has been input into the decoder
Definition: frame.h:473
static av_cold int cuvid_decode_init(AVCodecContext *avctx)
Definition: cuviddec.c:789
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
CUVIDDECODECAPS caps8
Definition: cuviddec.c:80
int bottom
Definition: cuviddec.c:55
CuvidFunctions * cvdl
Definition: cuviddec.c:86
AVCUDADeviceContextInternal * internal
int num
Numerator.
Definition: rational.h:59
The bitstream filter state.
Definition: avcodec.h:5557
int deint_mode
Definition: cuviddec.c:70
tcuvidUnmapVideoFrame * cuvidUnmapVideoFrame
const AVBitStreamFilter * av_bsf_get_by_name(const char *name)
Video format Used in cuvidGetSourceVideoFormat API.
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1697
int nb_surfaces
Definition: cuviddec.c:46
This structure is used in cuvidGetDecoderCaps API.
CUVIDPARSERPARAMS cuparseinfo
Definition: cuviddec.c:82
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
Set various frame properties from the codec context / packet data.
Definition: decode.c:1762
static av_cold int cuvid_decode_end(AVCodecContext *avctx)
Definition: cuviddec.c:676
static AVPacket pkt
int av_bsf_init(AVBSFContext *ctx)
Prepare the filter for use, after all the parameters and options have been set.
Definition: bsf.c:134
unsigned int seqhdr_data_length
OUT: Additional bytes following (CUVIDEOFORMATEX)
int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int(*func)(void *, void *, int))
Feed data from a user-supplied callback to an AVFifoBuffer.
Definition: fifo.c:122
int deint_mode_current
Definition: cuviddec.c:71
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:538
#define AV_PIX_FMT_P016
Definition: pixfmt.h:414
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx)
Allocate a context for a given bitstream filter.
Definition: bsf.c:81
tcuvidGetDecoderCaps * cuvidGetDecoderCaps
#define AV_PIX_FMT_P010
Definition: pixfmt.h:413
tcuvidCreateVideoParser * cuvidCreateVideoParser
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt)
Retrieve a filtered packet.
Definition: bsf.c:196
tcuvidMapVideoFrame * cuvidMapVideoFrame
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:150
tcuvidDestroyDecoder * cuvidDestroyDecoder
AVOptions.
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:202
Picture parameters for postprocessing This structure is used in cuvidMapVideoFrame API...
int internal_error
Definition: cuviddec.c:74
CUvideoparser cuparser
Definition: cuviddec.c:43
static int cuvid_decode_packet(AVCodecContext *avctx, const AVPacket *avpkt)
Definition: cuviddec.c:380
int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
Called by decoders to get the next packet for decoding.
Definition: decode.c:294
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:294
int is_deinterlacing
Definition: cuviddec.c:93
enum AVPixelFormat pix_fmt
A hardware pixel format which the codec can use.
Definition: avcodec.h:3329
AVFifoBuffer * frame_queue
Definition: cuviddec.c:68
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1588
#define OFFSET(x)
Definition: cuviddec.c:1083
static AVFrame * frame
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:90
CUVIDEOFORMATEX * pExtVideoInfo
IN: [Optional] sequence header data from system layer.
int height
Definition: cuviddec.c:60
int av_hwdevice_ctx_create(AVBufferRef **pdevice_ref, enum AVHWDeviceType type, const char *device, AVDictionary *opts, int flags)
Open a device of the specified type and create an AVHWDeviceContext for it.
Definition: hwcontext.c:565
int flags
Flags modifying the (de)muxer behaviour.
Definition: avformat.h:1436
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
Definition: utils.c:211
#define AVERROR_EOF
End of file.
Definition: error.h:55
unsigned short nMinWidth
OUT: Min supported coded width in pixels.
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
int interlaced_frame
The content of the picture is interlaced.
Definition: frame.h:348
char * resize_expr
Definition: cuviddec.c:49
tcuCtxPushCurrent_v2 * cuCtxPushCurrent
This structure is used in cuvidCreateDecoder API.
#define av_log(a,...)
int av_packet_ref(AVPacket *dst, const AVPacket *src)
Setup a new reference to the data described by a given packet.
Definition: avpacket.c:599
Video format including raw sequence header information Used in cuvidGetSourceVideoFormat API...
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition: mathematics.c:142
CudaFunctions * cudl
Definition: cuviddec.c:85
Picture parameters for decoding This structure is used in cuvidDecodePicture API IN for cuvidDecodePi...
AVRational pkt_timebase
Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
Definition: avcodec.h:3012
enum AVCodecID id
Definition: avcodec.h:3365
cudaVideoChromaFormat chroma_format
Definition: cuviddec.c:78
int width
Definition: frame.h:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
AVClass * avclass
Definition: cuviddec.c:40
cudaVideoCodec codec_type
Definition: cuviddec.c:77
#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
CUVIDDECODECAPS caps12
Definition: cuviddec.c:80
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void(*func)(void *, void *, int))
Feed data from an AVFifoBuffer to a user-supplied callback.
Definition: fifo.c:213
GLenum GLint * params
Definition: opengl_enc.c:114
tcuvidDecodePicture * cuvidDecodePicture
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
const char * name
Name of the codec implementation.
Definition: avcodec.h:3358
int av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
Definition: hwcontext.c:325
static void cuvid_flush(AVCodecContext *avctx)
Definition: cuviddec.c:1027
struct CuvidContext::@64 resize
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
Allocate a new frame attached to the given AVHWFramesContext.
Definition: hwcontext.c:461
unsigned char bIsSupported
OUT: 1 if codec supported, 0 if not supported.
tcuvidParseVideoData * cuvidParseVideoData
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:3830
The codec supports this format by some internal method.
Definition: avcodec.h:3313
int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags)
Copy data to or from a hw surface.
Definition: hwcontext.c:435
static int check_cu(AVCodecContext *avctx, CUresult err, const char *func)
Definition: cuviddec.c:96
int progressive_frame
IN: Input is progressive (deinterlace_mode will be ignored)
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
#define FFMIN(a, b)
Definition: common.h:96
CUVIDDECODECAPS caps10
Definition: cuviddec.c:80
AVHWDeviceContext * device_ctx
The parent AVHWDeviceContext.
Definition: hwcontext.h:147
static int CUDAAPI cuvid_handle_video_sequence(void *opaque, CUVIDEOFORMAT *format)
Definition: cuviddec.c:120
int second_field
IN: Output the second field (ignored if deinterlace mode is Weave)
int width
picture width / height.
Definition: avcodec.h:1660
static int filter_packet(AVFormatContext *avf, ConcatStream *cs, AVPacket *pkt)
Definition: concatdec.c:530
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3154
int top_field_first
IN: Input frame is top field first (1st field is top, 2nd field is bottom)
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:152
AVBufferRef * hwframe
Definition: cuviddec.c:64
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt)
Submit a packet for filtering.
Definition: bsf.c:175
AVFormatContext * ctx
Definition: movenc.c:48
static int cuvid_output_frame(AVCodecContext *avctx, AVFrame *frame)
Definition: cuviddec.c:470
tcuGetErrorString * cuGetErrorString
#define AVERROR_BSF_NOT_FOUND
Bitstream filter not found.
Definition: error.h:49
FFmpeg internal API for CUDA.
int dummy
Definition: motion.c:64
static int CUDAAPI cuvid_handle_picture_decode(void *opaque, CUVIDPICPARAMS *picparams)
Definition: cuviddec.c:336
HW acceleration through CUDA.
Definition: pixfmt.h:231
unsigned int nMaxHeight
OUT: Max supported coded height in pixels.
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
static void error(const char *err)
unsigned short nMinHeight
OUT: Min supported coded height in pixels.
the normal 2^n-1 "JPEG" YUV ranges
Definition: pixfmt.h:499
CUvideodecoder cudecoder
Definition: cuviddec.c:42
unsigned int nBitDepthMinus8
IN: The Value "BitDepth minus 8".
tcuGetErrorName * cuGetErrorName
static int cuvid_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: cuviddec.c:645
CUmemorytype srcMemoryType
Definition: dynlink_cuda.h:65
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:274
int drop_second_field
Definition: cuviddec.c:47
Libavcodec external API header.
int64_t pkt_duration
duration of the corresponding packet, expressed in AVStream->time_base units, 0 if unknown...
Definition: frame.h:481
PFNVIDSEQUENCECALLBACK pfnSequenceCallback
IN: Called before decoding frames and/or whenever there is a fmt change.
int av_fifo_size(const AVFifoBuffer *f)
Return the amount of data in bytes in the AVFifoBuffer, that is the amount of data you can read from ...
Definition: fifo.c:77
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
main external API structure.
Definition: avcodec.h:1488
void av_packet_unref(AVPacket *pkt)
Wipe the packet.
Definition: avpacket.c:590
Used in cuvidParseVideoData API with PFNVIDDISPLAYCALLBACK pfnDisplayPicture.
uint8_t * data
The data buffer.
Definition: buffer.h:89
static int cuvid_test_capabilities(AVCodecContext *avctx, const CUVIDPARSERPARAMS *cuparseinfo, int probed_width, int probed_height, int bit_depth)
Definition: cuviddec.c:701
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Definition: decode.c:1886
int picture_index
OUT: Index of the current picture.
a very simple circular buffer FIFO implementation
AVBSFContext * bsf
Definition: cuviddec.c:66
static const AVOption options[]
Definition: cuviddec.c:1085
tcuMemcpy2D_v2 * cuMemcpy2D
int extradata_size
Definition: avcodec.h:1589
static const AVCodecHWConfigInternal * cuvid_hw_configs[]
Definition: cuviddec.c:1098
#define AVERROR_BUG
Internal bug, also see AVERROR_BUG2.
Definition: error.h:50
This struct is allocated as AVHWDeviceContext.hwctx.
int coded_height
Definition: avcodec.h:1675
static const char * format
Definition: movenc.c:47
Describe the class of an AVClass context structure.
Definition: log.h:67
const unsigned char * payload
IN: Pointer to packet payload data (may be NULL if EOS flag is set)
Rational number (pair of numerator and denominator).
Definition: rational.h:58
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: utils.c:2249
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:122
CUvideotimestamp timestamp
OUT: Presentation time stamp.
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:67
refcounted data buffer API
int top_field_first
OUT: 1 if top field is displayed first; 0 otherwise.
#define DEFINE_CUVID_CODEC(x, X)
Definition: cuviddec.c:1111
char * cu_gpu
Definition: cuviddec.c:45
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:266
cudaVideoCodec eCodecType
IN: cudaVideoCodec_XXX.
cudaVideoCodec CodecType
IN: cudaVideoCodec_XXX.
CUVIDPARSERDISPINFO dispinfo
Definition: cuviddec.c:91
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:139
attribute_deprecated int64_t pkt_pts
PTS copied from the AVPacket that was decoded to produce this frame.
Definition: frame.h:302
the normal 219*2^(n-8) "MPEG" YUV ranges
Definition: pixfmt.h:498
A reference to a data buffer.
Definition: buffer.h:81
PFNVIDDECODECALLBACK pfnDecodePicture
IN: Called when a picture is ready to be decoded (decode order)
void * pUserData
IN: User data for callbacks.
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
common internal api header.
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:239
int64_t prev_pts
Definition: cuviddec.c:72
static int CUDAAPI cuvid_handle_picture_display(void *opaque, CUVIDPARSERDISPINFO *dispinfo)
Definition: cuviddec.c:350
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
tcuCtxPopCurrent_v2 * cuCtxPopCurrent
int den
Denominator.
Definition: rational.h:60
#define CHECK_CU(x)
Definition: cuviddec.c:118
CUVIDEOFORMAT format
OUT: CUVIDEOFORMAT structure.
unsigned int ulMaxNumDecodeSurfaces
IN: Max # of decode surfaces (parser will cycle through these)
tcuvidDestroyVideoParser * cuvidDestroyVideoParser
cudaVideoChromaFormat eChromaFormat
IN: cudaVideoChromaFormat_XXX.
void * priv_data
Definition: avcodec.h:1515
The codec supports this format via the hw_device_ctx interface.
Definition: avcodec.h:3297
AVFifoBuffer * av_fifo_alloc(unsigned int size)
Initialize an AVFifoBuffer.
Definition: fifo.c:43
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
int top_field_first
If the content is interlaced, is top field displayed first.
Definition: frame.h:353
int progressive_frame
OUT: 1 if progressive frame; 0 otherwise.
PFNVIDDISPLAYCALLBACK pfnDisplayPicture
IN: Called whenever a picture is ready to be displayed (display order)
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:3826
Data Packet Used in cuvidParseVideoData API IN for cuvidParseVideoData.
AVRational av_mul_q(AVRational b, AVRational c)
Multiply two rationals.
Definition: rational.c:80
int height
Definition: frame.h:259
unsigned int ulMaxDisplayDelay
IN: Max display queue delay (improves pipelining of decode with display) 0=no delay (recommended valu...
CUVIDEOFORMATEX cuparse_ext
Definition: cuviddec.c:83
void av_fifo_freep(AVFifoBuffer **f)
Free an AVFifoBuffer and reset pointer to NULL.
Definition: fifo.c:63
#define VD
Definition: cuviddec.c:1084
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
int depth
Number of bits in the component.
Definition: pixdesc.h:58
AVBufferRef * hw_device_ctx
A reference to the AVHWDeviceContext describing the device which will be used by a hardware encoder/d...
Definition: avcodec.h:3206
int pkt_size
size of the corresponding packet containing the compressed frame.
Definition: frame.h:515
Used in cuvidCreateVideoParser API.
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1377
AVCodecParameters * par_in
Parameters of the input stream.
Definition: avcodec.h:5585
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition: avutil.h:248
unsigned int nMaxWidth
OUT: Max supported coded width in pixels.
static int cuvid_is_buffer_full(AVCodecContext *avctx)
Definition: cuviddec.c:373