FFmpeg  4.2.3
nvdec.c
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1 /*
2  * HW decode acceleration through NVDEC
3  *
4  * Copyright (c) 2016 Anton Khirnov
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "config.h"
24 
25 #include "libavutil/common.h"
26 #include "libavutil/error.h"
27 #include "libavutil/hwcontext.h"
29 #include "libavutil/cuda_check.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavutil/pixfmt.h"
32 
33 #include "avcodec.h"
34 #include "decode.h"
35 #include "nvdec.h"
36 #include "internal.h"
37 
38 #if !NVDECAPI_CHECK_VERSION(9, 0)
39 #define cudaVideoSurfaceFormat_YUV444 2
40 #define cudaVideoSurfaceFormat_YUV444_16Bit 3
41 #endif
42 
43 typedef struct NVDECDecoder {
44  CUvideodecoder decoder;
45 
47  CUcontext cuda_ctx;
48  CUstream stream;
49 
50  CudaFunctions *cudl;
51  CuvidFunctions *cvdl;
52 } NVDECDecoder;
53 
54 typedef struct NVDECFramePool {
55  unsigned int dpb_size;
56  unsigned int nb_allocated;
58 
59 #define CHECK_CU(x) FF_CUDA_CHECK_DL(logctx, decoder->cudl, x)
60 
61 static int map_avcodec_id(enum AVCodecID id)
62 {
63  switch (id) {
64  case AV_CODEC_ID_H264: return cudaVideoCodec_H264;
65  case AV_CODEC_ID_HEVC: return cudaVideoCodec_HEVC;
66  case AV_CODEC_ID_MJPEG: return cudaVideoCodec_JPEG;
67  case AV_CODEC_ID_MPEG1VIDEO: return cudaVideoCodec_MPEG1;
68  case AV_CODEC_ID_MPEG2VIDEO: return cudaVideoCodec_MPEG2;
69  case AV_CODEC_ID_MPEG4: return cudaVideoCodec_MPEG4;
70  case AV_CODEC_ID_VC1: return cudaVideoCodec_VC1;
71  case AV_CODEC_ID_VP8: return cudaVideoCodec_VP8;
72  case AV_CODEC_ID_VP9: return cudaVideoCodec_VP9;
73  case AV_CODEC_ID_WMV3: return cudaVideoCodec_VC1;
74  }
75  return -1;
76 }
77 
79 {
80  int shift_h = 0, shift_v = 0;
81 
82  av_pix_fmt_get_chroma_sub_sample(pix_fmt, &shift_h, &shift_v);
83 
84  if (shift_h == 1 && shift_v == 1)
85  return cudaVideoChromaFormat_420;
86  else if (shift_h == 1 && shift_v == 0)
87  return cudaVideoChromaFormat_422;
88  else if (shift_h == 0 && shift_v == 0)
89  return cudaVideoChromaFormat_444;
90 
91  return -1;
92 }
93 
95  CUVIDDECODECREATEINFO *params, void *logctx)
96 {
97  int ret;
98  CUVIDDECODECAPS caps = { 0 };
99 
100  caps.eCodecType = params->CodecType;
101  caps.eChromaFormat = params->ChromaFormat;
102  caps.nBitDepthMinus8 = params->bitDepthMinus8;
103 
104  if (!decoder->cvdl->cuvidGetDecoderCaps) {
105  av_log(logctx, AV_LOG_WARNING, "Used Nvidia driver is too old to perform a capability check.\n");
106  av_log(logctx, AV_LOG_WARNING, "The minimum required version is "
107 #if defined(_WIN32) || defined(__CYGWIN__)
108  "378.66"
109 #else
110  "378.13"
111 #endif
112  ". Continuing blind.\n");
113  return 0;
114  }
115 
116  ret = CHECK_CU(decoder->cvdl->cuvidGetDecoderCaps(&caps));
117  if (ret < 0)
118  return ret;
119 
120  av_log(logctx, AV_LOG_VERBOSE, "NVDEC capabilities:\n");
121  av_log(logctx, AV_LOG_VERBOSE, "format supported: %s, max_mb_count: %d\n",
122  caps.bIsSupported ? "yes" : "no", caps.nMaxMBCount);
123  av_log(logctx, AV_LOG_VERBOSE, "min_width: %d, max_width: %d\n",
124  caps.nMinWidth, caps.nMaxWidth);
125  av_log(logctx, AV_LOG_VERBOSE, "min_height: %d, max_height: %d\n",
126  caps.nMinHeight, caps.nMaxHeight);
127 
128  if (!caps.bIsSupported) {
129  av_log(logctx, AV_LOG_ERROR, "Hardware is lacking required capabilities\n");
130  return AVERROR(EINVAL);
131  }
132 
133  if (params->ulWidth > caps.nMaxWidth || params->ulWidth < caps.nMinWidth) {
134  av_log(logctx, AV_LOG_ERROR, "Video width %d not within range from %d to %d\n",
135  (int)params->ulWidth, caps.nMinWidth, caps.nMaxWidth);
136  return AVERROR(EINVAL);
137  }
138 
139  if (params->ulHeight > caps.nMaxHeight || params->ulHeight < caps.nMinHeight) {
140  av_log(logctx, AV_LOG_ERROR, "Video height %d not within range from %d to %d\n",
141  (int)params->ulHeight, caps.nMinHeight, caps.nMaxHeight);
142  return AVERROR(EINVAL);
143  }
144 
145  if ((params->ulWidth * params->ulHeight) / 256 > caps.nMaxMBCount) {
146  av_log(logctx, AV_LOG_ERROR, "Video macroblock count %d exceeds maximum of %d\n",
147  (int)(params->ulWidth * params->ulHeight) / 256, caps.nMaxMBCount);
148  return AVERROR(EINVAL);
149  }
150 
151  return 0;
152 }
153 
154 static void nvdec_decoder_free(void *opaque, uint8_t *data)
155 {
157 
158  if (decoder->decoder) {
159  void *logctx = decoder->hw_device_ref->data;
160  CUcontext dummy;
161  CHECK_CU(decoder->cudl->cuCtxPushCurrent(decoder->cuda_ctx));
162  CHECK_CU(decoder->cvdl->cuvidDestroyDecoder(decoder->decoder));
163  CHECK_CU(decoder->cudl->cuCtxPopCurrent(&dummy));
164  }
165 
166  av_buffer_unref(&decoder->hw_device_ref);
167 
168  cuvid_free_functions(&decoder->cvdl);
169 
170  av_freep(&decoder);
171 }
172 
174  CUVIDDECODECREATEINFO *params, void *logctx)
175 {
177  AVCUDADeviceContext *device_hwctx = hw_device_ctx->hwctx;
178 
179  AVBufferRef *decoder_ref;
181 
182  CUcontext dummy;
183  int ret;
184 
185  decoder = av_mallocz(sizeof(*decoder));
186  if (!decoder)
187  return AVERROR(ENOMEM);
188 
189  decoder_ref = av_buffer_create((uint8_t*)decoder, sizeof(*decoder),
191  if (!decoder_ref) {
192  av_freep(&decoder);
193  return AVERROR(ENOMEM);
194  }
195 
196  decoder->hw_device_ref = av_buffer_ref(hw_device_ref);
197  if (!decoder->hw_device_ref) {
198  ret = AVERROR(ENOMEM);
199  goto fail;
200  }
201  decoder->cuda_ctx = device_hwctx->cuda_ctx;
202  decoder->cudl = device_hwctx->internal->cuda_dl;
203  decoder->stream = device_hwctx->stream;
204 
205  ret = cuvid_load_functions(&decoder->cvdl, logctx);
206  if (ret < 0) {
207  av_log(logctx, AV_LOG_ERROR, "Failed loading nvcuvid.\n");
208  goto fail;
209  }
210 
211  ret = CHECK_CU(decoder->cudl->cuCtxPushCurrent(decoder->cuda_ctx));
212  if (ret < 0)
213  goto fail;
214 
215  ret = nvdec_test_capabilities(decoder, params, logctx);
216  if (ret < 0) {
217  CHECK_CU(decoder->cudl->cuCtxPopCurrent(&dummy));
218  goto fail;
219  }
220 
221  ret = CHECK_CU(decoder->cvdl->cuvidCreateDecoder(&decoder->decoder, params));
222 
223  CHECK_CU(decoder->cudl->cuCtxPopCurrent(&dummy));
224 
225  if (ret < 0) {
226  goto fail;
227  }
228 
229  *out = decoder_ref;
230 
231  return 0;
232 fail:
233  av_buffer_unref(&decoder_ref);
234  return ret;
235 }
236 
237 static AVBufferRef *nvdec_decoder_frame_alloc(void *opaque, int size)
238 {
239  NVDECFramePool *pool = opaque;
240  AVBufferRef *ret;
241 
242  if (pool->nb_allocated >= pool->dpb_size)
243  return NULL;
244 
245  ret = av_buffer_alloc(sizeof(unsigned int));
246  if (!ret)
247  return NULL;
248 
249  *(unsigned int*)ret->data = pool->nb_allocated++;
250 
251  return ret;
252 }
253 
255 {
257 
258  av_freep(&ctx->bitstream);
259  ctx->bitstream_len = 0;
260  ctx->bitstream_allocated = 0;
261 
262  av_freep(&ctx->slice_offsets);
263  ctx->nb_slices = 0;
264  ctx->slice_offsets_allocated = 0;
265 
268 
269  return 0;
270 }
271 
273 {
275 
276  NVDECFramePool *pool;
277  AVHWFramesContext *frames_ctx;
278  const AVPixFmtDescriptor *sw_desc;
279 
280  CUVIDDECODECREATEINFO params = { 0 };
281 
282  cudaVideoSurfaceFormat output_format;
283  int cuvid_codec_type, cuvid_chroma_format, chroma_444;
284  int ret = 0;
285 
286  sw_desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
287  if (!sw_desc)
288  return AVERROR_BUG;
289 
290  cuvid_codec_type = map_avcodec_id(avctx->codec_id);
291  if (cuvid_codec_type < 0) {
292  av_log(avctx, AV_LOG_ERROR, "Unsupported codec ID\n");
293  return AVERROR_BUG;
294  }
295 
296  cuvid_chroma_format = map_chroma_format(avctx->sw_pix_fmt);
297  if (cuvid_chroma_format < 0) {
298  av_log(avctx, AV_LOG_ERROR, "Unsupported chroma format\n");
299  return AVERROR(ENOSYS);
300  }
301  chroma_444 = ctx->supports_444 && cuvid_chroma_format == cudaVideoChromaFormat_444;
302 
303  if (!avctx->hw_frames_ctx) {
305  if (ret < 0)
306  return ret;
307  }
308 
309  switch (sw_desc->comp[0].depth) {
310  case 8:
311  output_format = chroma_444 ? cudaVideoSurfaceFormat_YUV444 :
312  cudaVideoSurfaceFormat_NV12;
313  break;
314  case 10:
315  case 12:
316  output_format = chroma_444 ? cudaVideoSurfaceFormat_YUV444_16Bit :
317  cudaVideoSurfaceFormat_P016;
318  break;
319  default:
320  av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth\n");
321  return AVERROR(ENOSYS);
322  }
323 
324  frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
325 
326  params.ulWidth = avctx->coded_width;
327  params.ulHeight = avctx->coded_height;
328  params.ulTargetWidth = avctx->coded_width;
329  params.ulTargetHeight = avctx->coded_height;
330  params.bitDepthMinus8 = sw_desc->comp[0].depth - 8;
331  params.OutputFormat = output_format;
332  params.CodecType = cuvid_codec_type;
333  params.ChromaFormat = cuvid_chroma_format;
334  params.ulNumDecodeSurfaces = frames_ctx->initial_pool_size;
335  params.ulNumOutputSurfaces = frames_ctx->initial_pool_size;
336 
337  ret = nvdec_decoder_create(&ctx->decoder_ref, frames_ctx->device_ref, &params, avctx);
338  if (ret < 0) {
339  if (params.ulNumDecodeSurfaces > 32) {
340  av_log(avctx, AV_LOG_WARNING, "Using more than 32 (%d) decode surfaces might cause nvdec to fail.\n",
341  (int)params.ulNumDecodeSurfaces);
342  av_log(avctx, AV_LOG_WARNING, "Try lowering the amount of threads. Using %d right now.\n",
343  avctx->thread_count);
344  }
345  return ret;
346  }
347 
348  pool = av_mallocz(sizeof(*pool));
349  if (!pool) {
350  ret = AVERROR(ENOMEM);
351  goto fail;
352  }
353  pool->dpb_size = frames_ctx->initial_pool_size;
354 
355  ctx->decoder_pool = av_buffer_pool_init2(sizeof(int), pool,
357  if (!ctx->decoder_pool) {
358  ret = AVERROR(ENOMEM);
359  goto fail;
360  }
361 
362  return 0;
363 fail:
364  ff_nvdec_decode_uninit(avctx);
365  return ret;
366 }
367 
368 static void nvdec_fdd_priv_free(void *priv)
369 {
370  NVDECFrame *cf = priv;
371 
372  if (!cf)
373  return;
374 
375  av_buffer_unref(&cf->idx_ref);
377 
378  av_freep(&priv);
379 }
380 
381 static void nvdec_unmap_mapped_frame(void *opaque, uint8_t *data)
382 {
383  NVDECFrame *unmap_data = (NVDECFrame*)data;
385  void *logctx = decoder->hw_device_ref->data;
386  CUdeviceptr devptr = (CUdeviceptr)opaque;
387  int ret;
388  CUcontext dummy;
389 
390  ret = CHECK_CU(decoder->cudl->cuCtxPushCurrent(decoder->cuda_ctx));
391  if (ret < 0)
392  goto finish;
393 
394  CHECK_CU(decoder->cvdl->cuvidUnmapVideoFrame(decoder->decoder, devptr));
395 
396  CHECK_CU(decoder->cudl->cuCtxPopCurrent(&dummy));
397 
398 finish:
399  av_buffer_unref(&unmap_data->idx_ref);
400  av_buffer_unref(&unmap_data->decoder_ref);
401  av_free(unmap_data);
402 }
403 
404 static int nvdec_retrieve_data(void *logctx, AVFrame *frame)
405 {
407  NVDECFrame *cf = (NVDECFrame*)fdd->hwaccel_priv;
408  NVDECDecoder *decoder = (NVDECDecoder*)cf->decoder_ref->data;
409 
411 
412  CUVIDPROCPARAMS vpp = { 0 };
413  NVDECFrame *unmap_data = NULL;
414 
415  CUcontext dummy;
416  CUdeviceptr devptr;
417 
418  unsigned int pitch, i;
419  unsigned int offset = 0;
420  int shift_h = 0, shift_v = 0;
421  int ret = 0;
422 
423  vpp.progressive_frame = 1;
424  vpp.output_stream = decoder->stream;
425 
426  ret = CHECK_CU(decoder->cudl->cuCtxPushCurrent(decoder->cuda_ctx));
427  if (ret < 0)
428  return ret;
429 
430  ret = CHECK_CU(decoder->cvdl->cuvidMapVideoFrame(decoder->decoder,
431  cf->idx, &devptr,
432  &pitch, &vpp));
433  if (ret < 0)
434  goto finish;
435 
436  unmap_data = av_mallocz(sizeof(*unmap_data));
437  if (!unmap_data) {
438  ret = AVERROR(ENOMEM);
439  goto copy_fail;
440  }
441 
442  frame->buf[1] = av_buffer_create((uint8_t *)unmap_data, sizeof(*unmap_data),
443  nvdec_unmap_mapped_frame, (void*)devptr,
445  if (!frame->buf[1]) {
446  ret = AVERROR(ENOMEM);
447  goto copy_fail;
448  }
449 
450  unmap_data->idx = cf->idx;
451  unmap_data->idx_ref = av_buffer_ref(cf->idx_ref);
452  unmap_data->decoder_ref = av_buffer_ref(cf->decoder_ref);
453 
454  av_pix_fmt_get_chroma_sub_sample(hwctx->sw_format, &shift_h, &shift_v);
455  for (i = 0; frame->linesize[i]; i++) {
456  frame->data[i] = (uint8_t*)(devptr + offset);
457  frame->linesize[i] = pitch;
458  offset += pitch * (frame->height >> (i ? shift_v : 0));
459  }
460 
461  goto finish;
462 
463 copy_fail:
464  if (!frame->buf[1]) {
465  CHECK_CU(decoder->cvdl->cuvidUnmapVideoFrame(decoder->decoder, devptr));
466  av_freep(&unmap_data);
467  } else {
468  av_buffer_unref(&frame->buf[1]);
469  }
470 
471 finish:
472  CHECK_CU(decoder->cudl->cuCtxPopCurrent(&dummy));
473  return ret;
474 }
475 
477 {
480  NVDECFrame *cf = NULL;
481  int ret;
482 
483  ctx->bitstream_len = 0;
484  ctx->nb_slices = 0;
485 
486  if (fdd->hwaccel_priv)
487  return 0;
488 
489  cf = av_mallocz(sizeof(*cf));
490  if (!cf)
491  return AVERROR(ENOMEM);
492 
493  cf->decoder_ref = av_buffer_ref(ctx->decoder_ref);
494  if (!cf->decoder_ref) {
495  ret = AVERROR(ENOMEM);
496  goto fail;
497  }
498 
499  cf->idx_ref = av_buffer_pool_get(ctx->decoder_pool);
500  if (!cf->idx_ref) {
501  av_log(avctx, AV_LOG_ERROR, "No decoder surfaces left\n");
502  ret = AVERROR(ENOMEM);
503  goto fail;
504  }
505  cf->idx = *(unsigned int*)cf->idx_ref->data;
506 
507  fdd->hwaccel_priv = cf;
510 
511  return 0;
512 fail:
514  return ret;
515 
516 }
517 
519 {
522  void *logctx = avctx;
523  CUVIDPICPARAMS *pp = &ctx->pic_params;
524 
525  CUcontext dummy;
526 
527  int ret = 0;
528 
529  pp->nBitstreamDataLen = ctx->bitstream_len;
530  pp->pBitstreamData = ctx->bitstream;
531  pp->nNumSlices = ctx->nb_slices;
532  pp->pSliceDataOffsets = ctx->slice_offsets;
533 
534  ret = CHECK_CU(decoder->cudl->cuCtxPushCurrent(decoder->cuda_ctx));
535  if (ret < 0)
536  return ret;
537 
538  ret = CHECK_CU(decoder->cvdl->cuvidDecodePicture(decoder->decoder, &ctx->pic_params));
539  if (ret < 0)
540  goto finish;
541 
542 finish:
543  CHECK_CU(decoder->cudl->cuCtxPopCurrent(&dummy));
544 
545  return ret;
546 }
547 
549 {
551  int ret = ff_nvdec_end_frame(avctx);
552  ctx->bitstream = NULL;
553  return ret;
554 }
555 
557  uint32_t size)
558 {
560  void *tmp;
561 
563  (ctx->nb_slices + 1) * sizeof(*ctx->slice_offsets));
564  if (!tmp)
565  return AVERROR(ENOMEM);
566  ctx->slice_offsets = tmp;
567 
568  if (!ctx->bitstream)
569  ctx->bitstream = (uint8_t*)buffer;
570 
571  ctx->slice_offsets[ctx->nb_slices] = buffer - ctx->bitstream;
572  ctx->bitstream_len += size;
573  ctx->nb_slices++;
574 
575  return 0;
576 }
577 
579 {
581 }
582 
584 {
585  return av_buffer_create(NULL, 0, NULL, NULL, 0);
586 }
587 
589  AVBufferRef *hw_frames_ctx,
590  int dpb_size,
591  int supports_444)
592 {
593  AVHWFramesContext *frames_ctx = (AVHWFramesContext*)hw_frames_ctx->data;
594  const AVPixFmtDescriptor *sw_desc;
595  int cuvid_codec_type, cuvid_chroma_format, chroma_444;
596 
597  sw_desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
598  if (!sw_desc)
599  return AVERROR_BUG;
600 
601  cuvid_codec_type = map_avcodec_id(avctx->codec_id);
602  if (cuvid_codec_type < 0) {
603  av_log(avctx, AV_LOG_ERROR, "Unsupported codec ID\n");
604  return AVERROR_BUG;
605  }
606 
607  cuvid_chroma_format = map_chroma_format(avctx->sw_pix_fmt);
608  if (cuvid_chroma_format < 0) {
609  av_log(avctx, AV_LOG_VERBOSE, "Unsupported chroma format\n");
610  return AVERROR(EINVAL);
611  }
612  chroma_444 = supports_444 && cuvid_chroma_format == cudaVideoChromaFormat_444;
613 
614  frames_ctx->format = AV_PIX_FMT_CUDA;
615  frames_ctx->width = (avctx->coded_width + 1) & ~1;
616  frames_ctx->height = (avctx->coded_height + 1) & ~1;
617  /*
618  * We add two extra frames to the pool to account for deinterlacing filters
619  * holding onto their frames.
620  */
621  frames_ctx->initial_pool_size = dpb_size + 2;
622 
623  frames_ctx->free = nvdec_free_dummy;
624  frames_ctx->pool = av_buffer_pool_init(0, nvdec_alloc_dummy);
625 
626  if (!frames_ctx->pool)
627  return AVERROR(ENOMEM);
628 
629  switch (sw_desc->comp[0].depth) {
630  case 8:
631  frames_ctx->sw_format = chroma_444 ? AV_PIX_FMT_YUV444P : AV_PIX_FMT_NV12;
632  break;
633  case 10:
634  frames_ctx->sw_format = chroma_444 ? AV_PIX_FMT_YUV444P16 : AV_PIX_FMT_P010;
635  break;
636  case 12:
637  frames_ctx->sw_format = chroma_444 ? AV_PIX_FMT_YUV444P16 : AV_PIX_FMT_P016;
638  break;
639  default:
640  return AVERROR(EINVAL);
641  }
642 
643  return 0;
644 }
645 
647 {
648  FrameDecodeData *fdd;
649  NVDECFrame *cf;
650 
651  if (!frame || !frame->private_ref)
652  return -1;
653 
654  fdd = (FrameDecodeData*)frame->private_ref->data;
655  cf = (NVDECFrame*)fdd->hwaccel_priv;
656  if (!cf)
657  return -1;
658 
659  return cf->idx;
660 }
#define cudaVideoSurfaceFormat_YUV444_16Bit
Definition: nvdec.c:40
This struct aggregates all the (hardware/vendor-specific) "high-level" state, i.e.
Definition: hwcontext.h:60
#define NULL
Definition: coverity.c:32
static enum AVPixelFormat pix_fmt
AVBufferRef * decoder_ref
Definition: nvdec.h:47
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
int size
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2522
This structure describes decoded (raw) audio or video data.
Definition: frame.h:295
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1753
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
AVBufferRef * buf[AV_NUM_DATA_POINTERS]
AVBuffer references backing the data for this frame.
Definition: frame.h:486
unsigned * slice_offsets
Definition: nvdec.h:61
int ff_nvdec_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx, int dpb_size, int supports_444)
Definition: nvdec.c:588
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:228
void(* hwaccel_priv_free)(void *priv)
Definition: decode.h:53
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:208
int ff_nvdec_simple_end_frame(AVCodecContext *avctx)
Definition: nvdec.c:548
int nb_slices
Definition: nvdec.h:62
static int nvdec_decoder_create(AVBufferRef **out, AVBufferRef *hw_device_ref, CUVIDDECODECREATEINFO *params, void *logctx)
Definition: nvdec.c:173
AVBufferRef * hw_frames_ctx
For hwaccel-format frames, this should be a reference to the AVHWFramesContext describing the frame...
Definition: frame.h:634
#define AV_PIX_FMT_P016
Definition: pixfmt.h:437
#define AV_PIX_FMT_P010
Definition: pixfmt.h:436
uint8_t * bitstream
Definition: nvdec.h:57
static char buffer[20]
Definition: seek.c:32
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
CUVIDPICPARAMS pic_params
Definition: nvdec.h:51
unsigned int dpb_size
Definition: nvdec.c:55
AVBufferRef * private_ref
AVBufferRef for internal use by a single libav* library.
Definition: frame.h:674
int ff_nvdec_simple_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: nvdec.c:556
static AVFrame * frame
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:91
const char data[16]
Definition: mxf.c:91
static AVBufferRef * nvdec_decoder_frame_alloc(void *opaque, int size)
Definition: nvdec.c:237
static void finish(void)
Definition: movenc.c:345
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:400
#define AV_BUFFER_FLAG_READONLY
Always treat the buffer as read-only, even when it has only one reference.
Definition: buffer.h:113
AVBufferRef * decoder_ref
Definition: nvdec.h:55
CUvideodecoder decoder
Definition: nvdec.c:44
#define av_log(a,...)
static int nvdec_test_capabilities(NVDECDecoder *decoder, CUVIDDECODECREATEINFO *params, void *logctx)
Definition: nvdec.c:94
CUcontext cuda_ctx
Definition: nvdec.c:47
static void nvdec_unmap_mapped_frame(void *opaque, uint8_t *data)
Definition: nvdec.c:381
static void nvdec_free_dummy(struct AVHWFramesContext *ctx)
Definition: nvdec.c:578
static int map_chroma_format(enum AVPixelFormat pix_fmt)
Definition: nvdec.c:78
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
error code definitions
static AVBufferRef * hw_device_ctx
Definition: hw_decode.c:45
#define AVERROR(e)
Definition: error.h:43
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
Definition: pixdesc.c:2550
int ff_nvdec_end_frame(AVCodecContext *avctx)
Definition: nvdec.c:518
int ff_nvdec_start_frame(AVCodecContext *avctx, AVFrame *frame)
Definition: nvdec.c:476
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
static void nvdec_fdd_priv_free(void *priv)
Definition: nvdec.c:368
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
AVBufferRef * av_buffer_create(uint8_t *data, int size, void(*free)(void *opaque, uint8_t *data), void *opaque, int flags)
Create an AVBuffer from an existing array.
Definition: buffer.c:28
int supports_444
Definition: nvdec.h:65
static const uint8_t offset[127][2]
Definition: vf_spp.c:92
unsigned int idx
Definition: nvdec.h:45
#define fail()
Definition: checkasm.h:120
int ff_nvdec_decode_init(AVCodecContext *avctx)
Definition: nvdec.c:272
int initial_pool_size
Initial size of the frame pool.
Definition: hwcontext.h:198
int dpb_size
Definition: h264_levels.c:107
CUstream stream
Definition: nvdec.c:48
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3262
int bitstream_len
Definition: nvdec.h:58
AVFormatContext * ctx
Definition: movenc.c:48
static void nvdec_decoder_free(void *opaque, uint8_t *data)
Definition: nvdec.c:154
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given buffer if it is not large enough, otherwise do nothing.
Definition: mem.c:476
FFmpeg internal API for CUDA.
int dummy
Definition: motion.c:64
if(ret< 0)
Definition: vf_mcdeint.c:279
HW acceleration through CUDA.
Definition: pixfmt.h:235
AVBufferPool * av_buffer_pool_init2(int size, void *opaque, AVBufferRef *(*alloc)(void *opaque, int size), void(*pool_free)(void *opaque))
Allocate and initialize a buffer pool with a more complex allocator.
Definition: buffer.c:218
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2824
int(* post_process)(void *logctx, AVFrame *frame)
The callback to perform some delayed processing on the frame right before it is returned to the calle...
Definition: decode.h:45
CuvidFunctions * cvdl
Definition: nvdec.c:51
void(* free)(struct AVHWFramesContext *ctx)
This field may be set by the caller before calling av_hwframe_ctx_init().
Definition: hwcontext.h:169
Libavcodec external API header.
unsigned int bitstream_allocated
Definition: nvdec.h:59
enum AVCodecID codec_id
Definition: avcodec.h:1575
AVBufferRef * av_buffer_alloc(int size)
Allocate an AVBuffer of the given size using av_malloc().
Definition: buffer.c:67
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:326
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:1565
int ff_nvdec_decode_uninit(AVCodecContext *avctx)
Definition: nvdec.c:254
uint8_t * data
The data buffer.
Definition: buffer.h:89
#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:1753
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:275
unsigned int slice_offsets_allocated
Definition: nvdec.h:63
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:123
static AVBufferRef * nvdec_alloc_dummy(int size)
Definition: nvdec.c:583
AVBufferRef * idx_ref
Definition: nvdec.h:46
unsigned int nb_allocated
Definition: nvdec.c:56
static int map_avcodec_id(enum AVCodecID id)
Definition: nvdec.c:61
int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx, enum AVHWDeviceType dev_type)
Make sure avctx.hw_frames_ctx is set.
Definition: decode.c:1222
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:309
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:140
A reference to a data buffer.
Definition: buffer.h:81
const char const char * params
Definition: avisynth_c.h:867
This struct stores per-frame lavc-internal data and is attached to it via private_ref.
Definition: decode.h:34
common internal api header.
common internal and external API header
AVBufferPool * av_buffer_pool_init(int size, AVBufferRef *(*alloc)(int size))
Allocate and initialize a buffer pool.
Definition: buffer.c:238
int ff_nvdec_get_ref_idx(AVFrame *frame)
Definition: nvdec.c:646
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:190
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
#define CHECK_CU(x)
Definition: nvdec.c:59
#define cudaVideoSurfaceFormat_YUV444
Definition: nvdec.c:39
pixel format definitions
AVBufferPool * pool
A pool from which the frames are allocated by av_hwframe_get_buffer().
Definition: hwcontext.h:189
#define av_free(p)
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:1600
CudaFunctions * cudl
Definition: nvdec.c:50
AVBufferPool * decoder_pool
Definition: nvdec.h:53
int height
Definition: frame.h:353
FILE * out
Definition: movenc.c:54
#define av_freep(p)
static int nvdec_retrieve_data(void *logctx, AVFrame *frame)
Definition: nvdec.c:404
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:334
void * hwaccel_priv
Per-frame private data for hwaccels.
Definition: decode.h:52
int depth
Number of bits in the component.
Definition: pixdesc.h:58
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:221
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:3112
AVBufferRef * hw_device_ref
Definition: nvdec.c:46
static uint8_t tmp[11]
Definition: aes_ctr.c:26