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vaapi_encode.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <inttypes.h>
20 #include <string.h>
21 
22 #include "libavutil/avassert.h"
23 #include "libavutil/common.h"
24 #include "libavutil/log.h"
25 #include "libavutil/pixdesc.h"
26 
27 #include "vaapi_encode.h"
28 #include "avcodec.h"
29 
30 static const char * const picture_type_name[] = { "IDR", "I", "P", "B" };
31 
33  VAAPIEncodePicture *pic,
34  int type, char *data, size_t bit_len)
35 {
37  VAStatus vas;
38  VABufferID param_buffer, data_buffer;
39  VABufferID *tmp;
40  VAEncPackedHeaderParameterBuffer params = {
41  .type = type,
42  .bit_length = bit_len,
43  .has_emulation_bytes = 1,
44  };
45 
46  tmp = av_realloc_array(pic->param_buffers, sizeof(*tmp), pic->nb_param_buffers + 2);
47  if (!tmp)
48  return AVERROR(ENOMEM);
49  pic->param_buffers = tmp;
50 
51  vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
52  VAEncPackedHeaderParameterBufferType,
53  sizeof(params), 1, &params, &param_buffer);
54  if (vas != VA_STATUS_SUCCESS) {
55  av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
56  "for packed header (type %d): %d (%s).\n",
57  type, vas, vaErrorStr(vas));
58  return AVERROR(EIO);
59  }
60  pic->param_buffers[pic->nb_param_buffers++] = param_buffer;
61 
62  vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
63  VAEncPackedHeaderDataBufferType,
64  (bit_len + 7) / 8, 1, data, &data_buffer);
65  if (vas != VA_STATUS_SUCCESS) {
66  av_log(avctx, AV_LOG_ERROR, "Failed to create data buffer "
67  "for packed header (type %d): %d (%s).\n",
68  type, vas, vaErrorStr(vas));
69  return AVERROR(EIO);
70  }
71  pic->param_buffers[pic->nb_param_buffers++] = data_buffer;
72 
73  av_log(avctx, AV_LOG_DEBUG, "Packed header buffer (%d) is %#x/%#x "
74  "(%zu bits).\n", type, param_buffer, data_buffer, bit_len);
75  return 0;
76 }
77 
79  VAAPIEncodePicture *pic,
80  int type, char *data, size_t len)
81 {
83  VAStatus vas;
84  VABufferID *tmp;
85  VABufferID buffer;
86 
87  tmp = av_realloc_array(pic->param_buffers, sizeof(*tmp), pic->nb_param_buffers + 1);
88  if (!tmp)
89  return AVERROR(ENOMEM);
90  pic->param_buffers = tmp;
91 
92  vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
93  type, len, 1, data, &buffer);
94  if (vas != VA_STATUS_SUCCESS) {
95  av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
96  "(type %d): %d (%s).\n", type, vas, vaErrorStr(vas));
97  return AVERROR(EIO);
98  }
99  pic->param_buffers[pic->nb_param_buffers++] = buffer;
100 
101  av_log(avctx, AV_LOG_DEBUG, "Param buffer (%d) is %#x.\n",
102  type, buffer);
103  return 0;
104 }
105 
107  VAAPIEncodePicture *pic)
108 {
109  VAAPIEncodeContext *ctx = avctx->priv_data;
110  VAStatus vas;
111 
113 
114  if (pic->encode_complete) {
115  // Already waited for this picture.
116  return 0;
117  }
118 
119  av_log(avctx, AV_LOG_DEBUG, "Sync to pic %"PRId64"/%"PRId64" "
120  "(input surface %#x).\n", pic->display_order,
121  pic->encode_order, pic->input_surface);
122 
123  vas = vaSyncSurface(ctx->hwctx->display, pic->input_surface);
124  if (vas != VA_STATUS_SUCCESS) {
125  av_log(avctx, AV_LOG_ERROR, "Failed to sync to picture completion: "
126  "%d (%s).\n", vas, vaErrorStr(vas));
127  return AVERROR(EIO);
128  }
129 
130  // Input is definitely finished with now.
131  av_frame_free(&pic->input_image);
132 
133  pic->encode_complete = 1;
134  return 0;
135 }
136 
138  VAAPIEncodePicture *pic)
139 {
140  VAAPIEncodeContext *ctx = avctx->priv_data;
141  VAAPIEncodeSlice *slice;
142  VAStatus vas;
143  int err, i;
145  size_t bit_len;
146 
147  av_log(avctx, AV_LOG_DEBUG, "Issuing encode for pic %"PRId64"/%"PRId64" "
148  "as type %s.\n", pic->display_order, pic->encode_order,
149  picture_type_name[pic->type]);
150  if (pic->nb_refs == 0) {
151  av_log(avctx, AV_LOG_DEBUG, "No reference pictures.\n");
152  } else {
153  av_log(avctx, AV_LOG_DEBUG, "Refers to:");
154  for (i = 0; i < pic->nb_refs; i++) {
155  av_log(avctx, AV_LOG_DEBUG, " %"PRId64"/%"PRId64,
156  pic->refs[i]->display_order, pic->refs[i]->encode_order);
157  }
158  av_log(avctx, AV_LOG_DEBUG, ".\n");
159  }
160 
162  for (i = 0; i < pic->nb_refs; i++) {
163  av_assert0(pic->refs[i]);
164  // If we are serialised then the references must have already
165  // completed. If not, they must have been issued but need not
166  // have completed yet.
167  if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
168  av_assert0(pic->refs[i]->encode_complete);
169  else
170  av_assert0(pic->refs[i]->encode_issued);
171  }
172 
173  av_log(avctx, AV_LOG_DEBUG, "Input surface is %#x.\n", pic->input_surface);
174 
175  pic->recon_image = av_frame_alloc();
176  if (!pic->recon_image) {
177  err = AVERROR(ENOMEM);
178  goto fail;
179  }
180 
182  if (err < 0) {
183  err = AVERROR(ENOMEM);
184  goto fail;
185  }
186  pic->recon_surface = (VASurfaceID)(uintptr_t)pic->recon_image->data[3];
187  av_log(avctx, AV_LOG_DEBUG, "Recon surface is %#x.\n", pic->recon_surface);
188 
190  if (!pic->output_buffer_ref) {
191  err = AVERROR(ENOMEM);
192  goto fail;
193  }
194  pic->output_buffer = (VABufferID)(uintptr_t)pic->output_buffer_ref->data;
195  av_log(avctx, AV_LOG_DEBUG, "Output buffer is %#x.\n",
196  pic->output_buffer);
197 
198  if (ctx->codec->picture_params_size > 0) {
200  if (!pic->codec_picture_params)
201  goto fail;
202  memcpy(pic->codec_picture_params, ctx->codec_picture_params,
203  ctx->codec->picture_params_size);
204  } else {
206  }
207 
208  pic->nb_param_buffers = 0;
209 
210  if (pic->encode_order == 0) {
211  // Global parameter buffers are set on the first picture only.
212 
213  for (i = 0; i < ctx->nb_global_params; i++) {
214  err = vaapi_encode_make_param_buffer(avctx, pic,
215  VAEncMiscParameterBufferType,
216  (char*)ctx->global_params[i],
217  ctx->global_params_size[i]);
218  if (err < 0)
219  goto fail;
220  }
221  }
222 
223  if (pic->type == PICTURE_TYPE_IDR && ctx->codec->init_sequence_params) {
224  err = vaapi_encode_make_param_buffer(avctx, pic,
225  VAEncSequenceParameterBufferType,
228  if (err < 0)
229  goto fail;
230  }
231 
232  if (ctx->codec->init_picture_params) {
233  err = ctx->codec->init_picture_params(avctx, pic);
234  if (err < 0) {
235  av_log(avctx, AV_LOG_ERROR, "Failed to initialise picture "
236  "parameters: %d.\n", err);
237  goto fail;
238  }
239  err = vaapi_encode_make_param_buffer(avctx, pic,
240  VAEncPictureParameterBufferType,
242  ctx->codec->picture_params_size);
243  if (err < 0)
244  goto fail;
245  }
246 
247  if (pic->type == PICTURE_TYPE_IDR) {
248  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
250  bit_len = 8 * sizeof(data);
251  err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
252  if (err < 0) {
253  av_log(avctx, AV_LOG_ERROR, "Failed to write per-sequence "
254  "header: %d.\n", err);
255  goto fail;
256  }
257  err = vaapi_encode_make_packed_header(avctx, pic,
259  data, bit_len);
260  if (err < 0)
261  goto fail;
262  }
263  }
264 
265  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_PICTURE &&
266  ctx->codec->write_picture_header) {
267  bit_len = 8 * sizeof(data);
268  err = ctx->codec->write_picture_header(avctx, pic, data, &bit_len);
269  if (err < 0) {
270  av_log(avctx, AV_LOG_ERROR, "Failed to write per-picture "
271  "header: %d.\n", err);
272  goto fail;
273  }
274  err = vaapi_encode_make_packed_header(avctx, pic,
276  data, bit_len);
277  if (err < 0)
278  goto fail;
279  }
280 
281  if (ctx->codec->write_extra_buffer) {
282  for (i = 0;; i++) {
283  size_t len = sizeof(data);
284  int type;
285  err = ctx->codec->write_extra_buffer(avctx, pic, i, &type,
286  data, &len);
287  if (err == AVERROR_EOF)
288  break;
289  if (err < 0) {
290  av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
291  "buffer %d: %d.\n", i, err);
292  goto fail;
293  }
294 
295  err = vaapi_encode_make_param_buffer(avctx, pic, type,
296  data, len);
297  if (err < 0)
298  goto fail;
299  }
300  }
301 
302  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_MISC &&
303  ctx->codec->write_extra_header) {
304  for (i = 0;; i++) {
305  int type;
306  bit_len = 8 * sizeof(data);
307  err = ctx->codec->write_extra_header(avctx, pic, i, &type,
308  data, &bit_len);
309  if (err == AVERROR_EOF)
310  break;
311  if (err < 0) {
312  av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
313  "header %d: %d.\n", i, err);
314  goto fail;
315  }
316 
317  err = vaapi_encode_make_packed_header(avctx, pic, type,
318  data, bit_len);
319  if (err < 0)
320  goto fail;
321  }
322  }
323 
324  pic->slices = av_mallocz_array(pic->nb_slices, sizeof(*pic->slices));
325  if (!pic->slices) {
326  err = AVERROR(ENOMEM);
327  goto fail;
328  }
329  for (i = 0; i < pic->nb_slices; i++) {
330  slice = &pic->slices[i];
331  slice->index = i;
332 
333  if (ctx->codec->slice_params_size > 0) {
335  if (!slice->codec_slice_params) {
336  err = AVERROR(ENOMEM);
337  goto fail;
338  }
339  }
340 
341  if (ctx->codec->init_slice_params) {
342  err = ctx->codec->init_slice_params(avctx, pic, slice);
343  if (err < 0) {
344  av_log(avctx, AV_LOG_ERROR, "Failed to initialise slice "
345  "parameters: %d.\n", err);
346  goto fail;
347  }
348  }
349 
350  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SLICE &&
351  ctx->codec->write_slice_header) {
352  bit_len = 8 * sizeof(data);
353  err = ctx->codec->write_slice_header(avctx, pic, slice,
354  data, &bit_len);
355  if (err < 0) {
356  av_log(avctx, AV_LOG_ERROR, "Failed to write per-slice "
357  "header: %d.\n", err);
358  goto fail;
359  }
360  err = vaapi_encode_make_packed_header(avctx, pic,
361  ctx->codec->slice_header_type,
362  data, bit_len);
363  if (err < 0)
364  goto fail;
365  }
366 
367  if (ctx->codec->init_slice_params) {
368  err = vaapi_encode_make_param_buffer(avctx, pic,
369  VAEncSliceParameterBufferType,
370  slice->codec_slice_params,
371  ctx->codec->slice_params_size);
372  if (err < 0)
373  goto fail;
374  }
375  }
376 
377  vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
378  pic->input_surface);
379  if (vas != VA_STATUS_SUCCESS) {
380  av_log(avctx, AV_LOG_ERROR, "Failed to begin picture encode issue: "
381  "%d (%s).\n", vas, vaErrorStr(vas));
382  err = AVERROR(EIO);
383  goto fail_with_picture;
384  }
385 
386  vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
387  pic->param_buffers, pic->nb_param_buffers);
388  if (vas != VA_STATUS_SUCCESS) {
389  av_log(avctx, AV_LOG_ERROR, "Failed to upload encode parameters: "
390  "%d (%s).\n", vas, vaErrorStr(vas));
391  err = AVERROR(EIO);
392  goto fail_with_picture;
393  }
394 
395  vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
396  if (vas != VA_STATUS_SUCCESS) {
397  av_log(avctx, AV_LOG_ERROR, "Failed to end picture encode issue: "
398  "%d (%s).\n", vas, vaErrorStr(vas));
399  err = AVERROR(EIO);
400  // vaRenderPicture() has been called here, so we should not destroy
401  // the parameter buffers unless separate destruction is required.
402  if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
404  goto fail;
405  else
406  goto fail_at_end;
407  }
408 
409  if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
411  for (i = 0; i < pic->nb_param_buffers; i++) {
412  vas = vaDestroyBuffer(ctx->hwctx->display,
413  pic->param_buffers[i]);
414  if (vas != VA_STATUS_SUCCESS) {
415  av_log(avctx, AV_LOG_ERROR, "Failed to destroy "
416  "param buffer %#x: %d (%s).\n",
417  pic->param_buffers[i], vas, vaErrorStr(vas));
418  // And ignore.
419  }
420  }
421  }
422 
423  pic->encode_issued = 1;
424 
425  if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
426  return vaapi_encode_wait(avctx, pic);
427  else
428  return 0;
429 
430 fail_with_picture:
431  vaEndPicture(ctx->hwctx->display, ctx->va_context);
432 fail:
433  for(i = 0; i < pic->nb_param_buffers; i++)
434  vaDestroyBuffer(ctx->hwctx->display, pic->param_buffers[i]);
435  for (i = 0; i < pic->nb_slices; i++) {
436  if (pic->slices) {
437  av_freep(&pic->slices[i].priv_data);
439  }
440  }
441 fail_at_end:
443  av_freep(&pic->param_buffers);
444  av_freep(&pic->slices);
445  av_frame_free(&pic->recon_image);
447  pic->output_buffer = VA_INVALID_ID;
448  return err;
449 }
450 
453 {
454  VAAPIEncodeContext *ctx = avctx->priv_data;
455  VACodedBufferSegment *buf_list, *buf;
456  VAStatus vas;
457  int err;
458 
459  err = vaapi_encode_wait(avctx, pic);
460  if (err < 0)
461  return err;
462 
463  buf_list = NULL;
464  vas = vaMapBuffer(ctx->hwctx->display, pic->output_buffer,
465  (void**)&buf_list);
466  if (vas != VA_STATUS_SUCCESS) {
467  av_log(avctx, AV_LOG_ERROR, "Failed to map output buffers: "
468  "%d (%s).\n", vas, vaErrorStr(vas));
469  err = AVERROR(EIO);
470  goto fail;
471  }
472 
473  for (buf = buf_list; buf; buf = buf->next) {
474  av_log(avctx, AV_LOG_DEBUG, "Output buffer: %u bytes "
475  "(status %08x).\n", buf->size, buf->status);
476 
477  err = av_new_packet(pkt, buf->size);
478  if (err < 0)
479  goto fail_mapped;
480 
481  memcpy(pkt->data, buf->buf, buf->size);
482  }
483 
484  if (pic->type == PICTURE_TYPE_IDR)
485  pkt->flags |= AV_PKT_FLAG_KEY;
486 
487  pkt->pts = pic->pts;
488 
489  vas = vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
490  if (vas != VA_STATUS_SUCCESS) {
491  av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
492  "%d (%s).\n", vas, vaErrorStr(vas));
493  err = AVERROR(EIO);
494  goto fail;
495  }
496 
498  pic->output_buffer = VA_INVALID_ID;
499 
500  av_log(avctx, AV_LOG_DEBUG, "Output read for pic %"PRId64"/%"PRId64".\n",
501  pic->display_order, pic->encode_order);
502  return 0;
503 
504 fail_mapped:
505  vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
506 fail:
508  pic->output_buffer = VA_INVALID_ID;
509  return err;
510 }
511 
513  VAAPIEncodePicture *pic)
514 {
515  vaapi_encode_wait(avctx, pic);
516 
517  if (pic->output_buffer_ref) {
518  av_log(avctx, AV_LOG_DEBUG, "Discard output for pic "
519  "%"PRId64"/%"PRId64".\n",
520  pic->display_order, pic->encode_order);
521 
523  pic->output_buffer = VA_INVALID_ID;
524  }
525 
526  return 0;
527 }
528 
530 {
531  VAAPIEncodePicture *pic;
532 
533  pic = av_mallocz(sizeof(*pic));
534  if (!pic)
535  return NULL;
536 
537  pic->input_surface = VA_INVALID_ID;
538  pic->recon_surface = VA_INVALID_ID;
539  pic->output_buffer = VA_INVALID_ID;
540 
541  return pic;
542 }
543 
545  VAAPIEncodePicture *pic)
546 {
547  int i;
548 
549  if (pic->encode_issued)
550  vaapi_encode_discard(avctx, pic);
551 
552  for (i = 0; i < pic->nb_slices; i++) {
553  if (pic->slices) {
554  av_freep(&pic->slices[i].priv_data);
556  }
557  }
559 
560  av_frame_free(&pic->input_image);
561  av_frame_free(&pic->recon_image);
562 
563  av_freep(&pic->param_buffers);
564  av_freep(&pic->slices);
565  // Output buffer should already be destroyed.
566  av_assert0(pic->output_buffer == VA_INVALID_ID);
567 
568  av_freep(&pic->priv_data);
570 
571  av_free(pic);
572 
573  return 0;
574 }
575 
577  VAAPIEncodePicture *target)
578 {
579  VAAPIEncodeContext *ctx = avctx->priv_data;
580  VAAPIEncodePicture *pic;
581  int i, err;
582 
583  if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING ||
584  ctx->issue_mode == ISSUE_MODE_MINIMISE_LATENCY) {
585  // These two modes are equivalent, except that we wait for
586  // immediate completion on each operation if serialised.
587 
588  if (!target) {
589  // No target, nothing to do yet.
590  return 0;
591  }
592 
593  if (target->encode_complete) {
594  // Already done.
595  return 0;
596  }
597 
598  pic = target;
599  for (i = 0; i < pic->nb_refs; i++) {
600  if (!pic->refs[i]->encode_complete) {
601  err = vaapi_encode_step(avctx, pic->refs[i]);
602  if (err < 0)
603  return err;
604  }
605  }
606 
607  err = vaapi_encode_issue(avctx, pic);
608  if (err < 0)
609  return err;
610 
611  } else if (ctx->issue_mode == ISSUE_MODE_MAXIMISE_THROUGHPUT) {
612  int activity;
613 
614  // Run through the list of all available pictures repeatedly
615  // and issue the first one found which has all dependencies
616  // available (including previously-issued but not necessarily
617  // completed pictures).
618  do {
619  activity = 0;
620  for (pic = ctx->pic_start; pic; pic = pic->next) {
621  if (!pic->input_available || pic->encode_issued)
622  continue;
623  for (i = 0; i < pic->nb_refs; i++) {
624  if (!pic->refs[i]->encode_issued)
625  break;
626  }
627  if (i < pic->nb_refs)
628  continue;
629  err = vaapi_encode_issue(avctx, pic);
630  if (err < 0)
631  return err;
632  activity = 1;
633  // Start again from the beginning of the list,
634  // because issuing this picture may have satisfied
635  // forward dependencies of earlier ones.
636  break;
637  }
638  } while(activity);
639 
640  // If we had a defined target for this step then it will
641  // always have been issued by now.
642  if (target) {
643  av_assert0(target->encode_issued && "broken dependencies?");
644  }
645 
646  } else {
647  av_assert0(0);
648  }
649 
650  return 0;
651 }
652 
654  VAAPIEncodePicture **pic_out)
655 {
656  VAAPIEncodeContext *ctx = avctx->priv_data;
657  VAAPIEncodePicture *start, *end, *pic;
658  int i;
659 
660  for (pic = ctx->pic_start; pic; pic = pic->next) {
661  if (pic->next)
662  av_assert0(pic->display_order + 1 == pic->next->display_order);
663  if (pic->display_order == ctx->input_order) {
664  *pic_out = pic;
665  return 0;
666  }
667  }
668 
669  pic = vaapi_encode_alloc();
670  if (!pic)
671  return AVERROR(ENOMEM);
672 
673  if (ctx->input_order == 0 || ctx->force_idr ||
674  ctx->gop_counter >= avctx->gop_size) {
675  pic->type = PICTURE_TYPE_IDR;
676  ctx->force_idr = 0;
677  ctx->gop_counter = 1;
678  ctx->p_counter = 0;
679  } else if (ctx->p_counter >= ctx->p_per_i) {
680  pic->type = PICTURE_TYPE_I;
681  ++ctx->gop_counter;
682  ctx->p_counter = 0;
683  } else {
684  pic->type = PICTURE_TYPE_P;
685  pic->refs[0] = ctx->pic_end;
686  pic->nb_refs = 1;
687  ++ctx->gop_counter;
688  ++ctx->p_counter;
689  }
690  start = end = pic;
691 
692  if (pic->type != PICTURE_TYPE_IDR) {
693  // If that was not an IDR frame, add B-frames display-before and
694  // encode-after it, but not exceeding the GOP size.
695 
696  for (i = 0; i < ctx->b_per_p &&
697  ctx->gop_counter < avctx->gop_size; i++) {
698  pic = vaapi_encode_alloc();
699  if (!pic)
700  goto fail;
701 
702  pic->type = PICTURE_TYPE_B;
703  pic->refs[0] = ctx->pic_end;
704  pic->refs[1] = end;
705  pic->nb_refs = 2;
706 
707  pic->next = start;
708  pic->display_order = ctx->input_order + ctx->b_per_p - i - 1;
709  pic->encode_order = pic->display_order + 1;
710  start = pic;
711 
712  ++ctx->gop_counter;
713  }
714  }
715 
716  if (ctx->input_order == 0) {
717  pic->display_order = 0;
718  pic->encode_order = 0;
719 
720  ctx->pic_start = ctx->pic_end = pic;
721 
722  } else {
723  for (i = 0, pic = start; pic; i++, pic = pic->next) {
724  pic->display_order = ctx->input_order + i;
725  if (end->type == PICTURE_TYPE_IDR)
726  pic->encode_order = ctx->input_order + i;
727  else if (pic == end)
728  pic->encode_order = ctx->input_order;
729  else
730  pic->encode_order = ctx->input_order + i + 1;
731  }
732 
733  av_assert0(ctx->pic_end);
734  ctx->pic_end->next = start;
735  ctx->pic_end = end;
736  }
737  *pic_out = start;
738 
739  av_log(avctx, AV_LOG_DEBUG, "Pictures:");
740  for (pic = ctx->pic_start; pic; pic = pic->next) {
741  av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
742  picture_type_name[pic->type],
743  pic->display_order, pic->encode_order);
744  }
745  av_log(avctx, AV_LOG_DEBUG, "\n");
746 
747  return 0;
748 
749 fail:
750  while (start) {
751  pic = start->next;
752  vaapi_encode_free(avctx, start);
753  start = pic;
754  }
755  return AVERROR(ENOMEM);
756 }
757 
759 {
760  VAAPIEncodeContext *ctx = avctx->priv_data;
761  VAAPIEncodePicture *pic, *last_pic, *next;
762 
763  // Find the last picture we actually have input for.
764  for (pic = ctx->pic_start; pic; pic = pic->next) {
765  if (!pic->input_available)
766  break;
767  last_pic = pic;
768  }
769 
770  if (pic) {
771  av_assert0(last_pic);
772 
773  if (last_pic->type == PICTURE_TYPE_B) {
774  // Some fixing up is required. Change the type of this
775  // picture to P, then modify preceding B references which
776  // point beyond it to point at it instead.
777 
778  last_pic->type = PICTURE_TYPE_P;
779  last_pic->encode_order = last_pic->refs[1]->encode_order;
780 
781  for (pic = ctx->pic_start; pic != last_pic; pic = pic->next) {
782  if (pic->type == PICTURE_TYPE_B &&
783  pic->refs[1] == last_pic->refs[1])
784  pic->refs[1] = last_pic;
785  }
786 
787  last_pic->nb_refs = 1;
788  last_pic->refs[1] = NULL;
789  } else {
790  // We can use the current structure (no references point
791  // beyond the end), but there are unused pics to discard.
792  }
793 
794  // Discard all following pics, they will never be used.
795  for (pic = last_pic->next; pic; pic = next) {
796  next = pic->next;
797  vaapi_encode_free(avctx, pic);
798  }
799 
800  last_pic->next = NULL;
801  ctx->pic_end = last_pic;
802 
803  } else {
804  // Input is available for all pictures, so we don't need to
805  // mangle anything.
806  }
807 
808  av_log(avctx, AV_LOG_DEBUG, "Pictures ending truncated GOP:");
809  for (pic = ctx->pic_start; pic; pic = pic->next) {
810  av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
811  picture_type_name[pic->type],
812  pic->display_order, pic->encode_order);
813  }
814  av_log(avctx, AV_LOG_DEBUG, "\n");
815 
816  return 0;
817 }
818 
820 {
821  VAAPIEncodeContext *ctx = avctx->priv_data;
822  VAAPIEncodePicture *pic, *old;
823  int i;
824 
825  while (ctx->pic_start != ctx->pic_end) {
826  old = ctx->pic_start;
827  if (old->encode_order > ctx->output_order)
828  break;
829 
830  for (pic = old->next; pic; pic = pic->next) {
831  if (pic->encode_complete)
832  continue;
833  for (i = 0; i < pic->nb_refs; i++) {
834  if (pic->refs[i] == old) {
835  // We still need this picture because it's referred to
836  // directly by a later one, so it and all following
837  // pictures have to stay.
838  return 0;
839  }
840  }
841  }
842 
843  pic = ctx->pic_start;
844  ctx->pic_start = pic->next;
845  vaapi_encode_free(avctx, pic);
846  }
847 
848  return 0;
849 }
850 
852  const AVFrame *input_image, int *got_packet)
853 {
854  VAAPIEncodeContext *ctx = avctx->priv_data;
855  VAAPIEncodePicture *pic;
856  int err;
857 
858  if (input_image) {
859  av_log(avctx, AV_LOG_DEBUG, "Encode frame: %ux%u (%"PRId64").\n",
860  input_image->width, input_image->height, input_image->pts);
861 
862  if (input_image->pict_type == AV_PICTURE_TYPE_I) {
863  err = vaapi_encode_truncate_gop(avctx);
864  if (err < 0)
865  goto fail;
866  ctx->force_idr = 1;
867  }
868 
869  err = vaapi_encode_get_next(avctx, &pic);
870  if (err) {
871  av_log(avctx, AV_LOG_ERROR, "Input setup failed: %d.\n", err);
872  return err;
873  }
874 
875  pic->input_image = av_frame_alloc();
876  if (!pic->input_image) {
877  err = AVERROR(ENOMEM);
878  goto fail;
879  }
880  err = av_frame_ref(pic->input_image, input_image);
881  if (err < 0)
882  goto fail;
883  pic->input_surface = (VASurfaceID)(uintptr_t)input_image->data[3];
884  pic->pts = input_image->pts;
885 
886  if (ctx->input_order == 0)
887  ctx->first_pts = pic->pts;
888  if (ctx->input_order == ctx->decode_delay)
889  ctx->dts_pts_diff = pic->pts - ctx->first_pts;
890  if (ctx->output_delay > 0)
891  ctx->ts_ring[ctx->input_order % (3 * ctx->output_delay)] = pic->pts;
892 
893  pic->input_available = 1;
894 
895  } else {
896  if (!ctx->end_of_stream) {
897  err = vaapi_encode_truncate_gop(avctx);
898  if (err < 0)
899  goto fail;
900  ctx->end_of_stream = 1;
901  }
902  }
903 
904  ++ctx->input_order;
905  ++ctx->output_order;
906  av_assert0(ctx->output_order + ctx->output_delay + 1 == ctx->input_order);
907 
908  for (pic = ctx->pic_start; pic; pic = pic->next)
909  if (pic->encode_order == ctx->output_order)
910  break;
911 
912  // pic can be null here if we don't have a specific target in this
913  // iteration. We might still issue encodes if things can be overlapped,
914  // even though we don't intend to output anything.
915 
916  err = vaapi_encode_step(avctx, pic);
917  if (err < 0) {
918  av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
919  goto fail;
920  }
921 
922  if (!pic) {
923  *got_packet = 0;
924  } else {
925  err = vaapi_encode_output(avctx, pic, pkt);
926  if (err < 0) {
927  av_log(avctx, AV_LOG_ERROR, "Output failed: %d.\n", err);
928  goto fail;
929  }
930 
931  if (ctx->output_delay == 0) {
932  pkt->dts = pkt->pts;
933  } else if (ctx->output_order < ctx->decode_delay) {
934  if (ctx->ts_ring[ctx->output_order] < INT64_MIN + ctx->dts_pts_diff)
935  pkt->dts = INT64_MIN;
936  else
937  pkt->dts = ctx->ts_ring[ctx->output_order] - ctx->dts_pts_diff;
938  } else {
939  pkt->dts = ctx->ts_ring[(ctx->output_order - ctx->decode_delay) %
940  (3 * ctx->output_delay)];
941  }
942 
943  *got_packet = 1;
944  }
945 
946  err = vaapi_encode_clear_old(avctx);
947  if (err < 0) {
948  av_log(avctx, AV_LOG_ERROR, "List clearing failed: %d.\n", err);
949  goto fail;
950  }
951 
952  return 0;
953 
954 fail:
955  // Unclear what to clean up on failure. There are probably some things we
956  // could do usefully clean up here, but for now just leave them for uninit()
957  // to do instead.
958  return err;
959 }
960 
962 {
963  VAAPIEncodeContext *ctx = avctx->priv_data;
964  VAStatus vas;
965  int i, n, err;
966  VAProfile *profiles = NULL;
967  VAEntrypoint *entrypoints = NULL;
968  VAConfigAttrib attr[] = {
969  { VAConfigAttribRTFormat },
970  { VAConfigAttribRateControl },
971  { VAConfigAttribEncMaxRefFrames },
972  { VAConfigAttribEncPackedHeaders },
973  };
974 
975  n = vaMaxNumProfiles(ctx->hwctx->display);
976  profiles = av_malloc_array(n, sizeof(VAProfile));
977  if (!profiles) {
978  err = AVERROR(ENOMEM);
979  goto fail;
980  }
981  vas = vaQueryConfigProfiles(ctx->hwctx->display, profiles, &n);
982  if (vas != VA_STATUS_SUCCESS) {
983  av_log(ctx, AV_LOG_ERROR, "Failed to query profiles: %d (%s).\n",
984  vas, vaErrorStr(vas));
985  err = AVERROR(ENOSYS);
986  goto fail;
987  }
988  for (i = 0; i < n; i++) {
989  if (profiles[i] == ctx->va_profile)
990  break;
991  }
992  if (i >= n) {
993  av_log(ctx, AV_LOG_ERROR, "Encoding profile not found (%d).\n",
994  ctx->va_profile);
995  err = AVERROR(ENOSYS);
996  goto fail;
997  }
998 
999  n = vaMaxNumEntrypoints(ctx->hwctx->display);
1000  entrypoints = av_malloc_array(n, sizeof(VAEntrypoint));
1001  if (!entrypoints) {
1002  err = AVERROR(ENOMEM);
1003  goto fail;
1004  }
1005  vas = vaQueryConfigEntrypoints(ctx->hwctx->display, ctx->va_profile,
1006  entrypoints, &n);
1007  if (vas != VA_STATUS_SUCCESS) {
1008  av_log(ctx, AV_LOG_ERROR, "Failed to query entrypoints for "
1009  "profile %u: %d (%s).\n", ctx->va_profile,
1010  vas, vaErrorStr(vas));
1011  err = AVERROR(ENOSYS);
1012  goto fail;
1013  }
1014  for (i = 0; i < n; i++) {
1015  if (entrypoints[i] == ctx->va_entrypoint)
1016  break;
1017  }
1018  if (i >= n) {
1019  av_log(ctx, AV_LOG_ERROR, "Encoding entrypoint not found "
1020  "(%d / %d).\n", ctx->va_profile, ctx->va_entrypoint);
1021  err = AVERROR(ENOSYS);
1022  goto fail;
1023  }
1024 
1025  vas = vaGetConfigAttributes(ctx->hwctx->display,
1026  ctx->va_profile, ctx->va_entrypoint,
1027  attr, FF_ARRAY_ELEMS(attr));
1028  if (vas != VA_STATUS_SUCCESS) {
1029  av_log(avctx, AV_LOG_ERROR, "Failed to fetch config "
1030  "attributes: %d (%s).\n", vas, vaErrorStr(vas));
1031  return AVERROR(EINVAL);
1032  }
1033 
1034  for (i = 0; i < FF_ARRAY_ELEMS(attr); i++) {
1035  if (attr[i].value == VA_ATTRIB_NOT_SUPPORTED) {
1036  // Unfortunately we have to treat this as "don't know" and hope
1037  // for the best, because the Intel MJPEG encoder returns this
1038  // for all the interesting attributes.
1039  continue;
1040  }
1041  switch (attr[i].type) {
1042  case VAConfigAttribRTFormat:
1043  if (!(ctx->va_rt_format & attr[i].value)) {
1044  av_log(avctx, AV_LOG_ERROR, "Surface RT format %#x "
1045  "is not supported (mask %#x).\n",
1046  ctx->va_rt_format, attr[i].value);
1047  err = AVERROR(EINVAL);
1048  goto fail;
1049  }
1051  (VAConfigAttrib) {
1052  .type = VAConfigAttribRTFormat,
1053  .value = ctx->va_rt_format,
1054  };
1055  break;
1056  case VAConfigAttribRateControl:
1057  // Hack for backward compatibility: CBR was the only
1058  // usable RC mode for a long time, so old drivers will
1059  // only have it. Normal default options may now choose
1060  // VBR and then fail, however, so override it here with
1061  // CBR if that is the only supported mode.
1062  if (ctx->va_rc_mode == VA_RC_VBR &&
1063  !(attr[i].value & VA_RC_VBR) &&
1064  (attr[i].value & VA_RC_CBR)) {
1065  av_log(avctx, AV_LOG_WARNING, "VBR rate control is "
1066  "not supported with this driver version; "
1067  "using CBR instead.\n");
1068  ctx->va_rc_mode = VA_RC_CBR;
1069  }
1070  if (!(ctx->va_rc_mode & attr[i].value)) {
1071  av_log(avctx, AV_LOG_ERROR, "Rate control mode %#x "
1072  "is not supported (mask: %#x).\n",
1073  ctx->va_rc_mode, attr[i].value);
1074  err = AVERROR(EINVAL);
1075  goto fail;
1076  }
1078  (VAConfigAttrib) {
1079  .type = VAConfigAttribRateControl,
1080  .value = ctx->va_rc_mode,
1081  };
1082  break;
1083  case VAConfigAttribEncMaxRefFrames:
1084  {
1085  unsigned int ref_l0 = attr[i].value & 0xffff;
1086  unsigned int ref_l1 = (attr[i].value >> 16) & 0xffff;
1087 
1088  if (avctx->gop_size > 1 && ref_l0 < 1) {
1089  av_log(avctx, AV_LOG_ERROR, "P frames are not "
1090  "supported (%#x).\n", attr[i].value);
1091  err = AVERROR(EINVAL);
1092  goto fail;
1093  }
1094  if (avctx->max_b_frames > 0 && ref_l1 < 1) {
1095  av_log(avctx, AV_LOG_ERROR, "B frames are not "
1096  "supported (%#x).\n", attr[i].value);
1097  err = AVERROR(EINVAL);
1098  goto fail;
1099  }
1100  }
1101  break;
1102  case VAConfigAttribEncPackedHeaders:
1103  if (ctx->va_packed_headers & ~attr[i].value) {
1104  // This isn't fatal, but packed headers are always
1105  // preferable because they are under our control.
1106  // When absent, the driver is generating them and some
1107  // features may not work (e.g. VUI or SEI in H.264).
1108  av_log(avctx, AV_LOG_WARNING, "Warning: some packed "
1109  "headers are not supported (want %#x, got %#x).\n",
1110  ctx->va_packed_headers, attr[i].value);
1111  ctx->va_packed_headers &= attr[i].value;
1112  }
1114  (VAConfigAttrib) {
1115  .type = VAConfigAttribEncPackedHeaders,
1116  .value = ctx->va_packed_headers,
1117  };
1118  break;
1119  default:
1120  av_assert0(0 && "Unexpected config attribute.");
1121  }
1122  }
1123 
1124  err = 0;
1125 fail:
1126  av_freep(&profiles);
1127  av_freep(&entrypoints);
1128  return err;
1129 }
1130 
1132 {
1133  VAAPIEncodeContext *ctx = avctx->priv_data;
1134  int rc_bits_per_second;
1135  int rc_target_percentage;
1136  int rc_window_size;
1137  int hrd_buffer_size;
1138  int hrd_initial_buffer_fullness;
1139  int fr_num, fr_den;
1140 
1141  if (avctx->bit_rate > INT32_MAX) {
1142  av_log(avctx, AV_LOG_ERROR, "Target bitrate of 2^31 bps or "
1143  "higher is not supported.\n");
1144  return AVERROR(EINVAL);
1145  }
1146 
1147  if (avctx->rc_buffer_size)
1148  hrd_buffer_size = avctx->rc_buffer_size;
1149  else
1150  hrd_buffer_size = avctx->bit_rate;
1151  if (avctx->rc_initial_buffer_occupancy)
1152  hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
1153  else
1154  hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
1155 
1156  if (ctx->va_rc_mode == VA_RC_CBR) {
1157  rc_bits_per_second = avctx->bit_rate;
1158  rc_target_percentage = 100;
1159  rc_window_size = 1000;
1160  } else {
1161  if (avctx->rc_max_rate < avctx->bit_rate) {
1162  // Max rate is unset or invalid, just use the normal bitrate.
1163  rc_bits_per_second = avctx->bit_rate;
1164  rc_target_percentage = 100;
1165  } else {
1166  rc_bits_per_second = avctx->rc_max_rate;
1167  rc_target_percentage = (avctx->bit_rate * 100) / rc_bits_per_second;
1168  }
1169  rc_window_size = (hrd_buffer_size * 1000) / avctx->bit_rate;
1170  }
1171 
1172  ctx->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
1173  ctx->rc_params.rc = (VAEncMiscParameterRateControl) {
1174  .bits_per_second = rc_bits_per_second,
1175  .target_percentage = rc_target_percentage,
1176  .window_size = rc_window_size,
1177  .initial_qp = 0,
1178  .min_qp = (avctx->qmin > 0 ? avctx->qmin : 0),
1179  .basic_unit_size = 0,
1180  };
1181  ctx->global_params[ctx->nb_global_params] =
1182  &ctx->rc_params.misc;
1183  ctx->global_params_size[ctx->nb_global_params++] =
1184  sizeof(ctx->rc_params);
1185 
1186  ctx->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
1187  ctx->hrd_params.hrd = (VAEncMiscParameterHRD) {
1188  .initial_buffer_fullness = hrd_initial_buffer_fullness,
1189  .buffer_size = hrd_buffer_size,
1190  };
1191  ctx->global_params[ctx->nb_global_params] =
1192  &ctx->hrd_params.misc;
1193  ctx->global_params_size[ctx->nb_global_params++] =
1194  sizeof(ctx->hrd_params);
1195 
1196  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1197  av_reduce(&fr_num, &fr_den,
1198  avctx->framerate.num, avctx->framerate.den, 65535);
1199  else
1200  av_reduce(&fr_num, &fr_den,
1201  avctx->time_base.den, avctx->time_base.num, 65535);
1202 
1203  ctx->fr_params.misc.type = VAEncMiscParameterTypeFrameRate;
1204  ctx->fr_params.fr.framerate = (unsigned int)fr_den << 16 | fr_num;
1205 
1206 #if VA_CHECK_VERSION(0, 40, 0)
1207  ctx->global_params[ctx->nb_global_params] =
1208  &ctx->fr_params.misc;
1209  ctx->global_params_size[ctx->nb_global_params++] =
1210  sizeof(ctx->fr_params);
1211 #endif
1212 
1213  return 0;
1214 }
1215 
1216 static void vaapi_encode_free_output_buffer(void *opaque,
1217  uint8_t *data)
1218 {
1219  AVCodecContext *avctx = opaque;
1220  VAAPIEncodeContext *ctx = avctx->priv_data;
1221  VABufferID buffer_id;
1222 
1223  buffer_id = (VABufferID)(uintptr_t)data;
1224 
1225  vaDestroyBuffer(ctx->hwctx->display, buffer_id);
1226 
1227  av_log(avctx, AV_LOG_DEBUG, "Freed output buffer %#x\n", buffer_id);
1228 }
1229 
1231  int size)
1232 {
1233  AVCodecContext *avctx = opaque;
1234  VAAPIEncodeContext *ctx = avctx->priv_data;
1235  VABufferID buffer_id;
1236  VAStatus vas;
1237  AVBufferRef *ref;
1238 
1239  // The output buffer size is fixed, so it needs to be large enough
1240  // to hold the largest possible compressed frame. We assume here
1241  // that the uncompressed frame plus some header data is an upper
1242  // bound on that.
1243  vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
1244  VAEncCodedBufferType,
1245  3 * ctx->surface_width * ctx->surface_height +
1246  (1 << 16), 1, 0, &buffer_id);
1247  if (vas != VA_STATUS_SUCCESS) {
1248  av_log(avctx, AV_LOG_ERROR, "Failed to create bitstream "
1249  "output buffer: %d (%s).\n", vas, vaErrorStr(vas));
1250  return NULL;
1251  }
1252 
1253  av_log(avctx, AV_LOG_DEBUG, "Allocated output buffer %#x\n", buffer_id);
1254 
1255  ref = av_buffer_create((uint8_t*)(uintptr_t)buffer_id,
1256  sizeof(buffer_id),
1258  avctx, AV_BUFFER_FLAG_READONLY);
1259  if (!ref) {
1260  vaDestroyBuffer(ctx->hwctx->display, buffer_id);
1261  return NULL;
1262  }
1263 
1264  return ref;
1265 }
1266 
1268 {
1269  VAAPIEncodeContext *ctx = avctx->priv_data;
1270  AVVAAPIHWConfig *hwconfig = NULL;
1271  AVHWFramesConstraints *constraints = NULL;
1272  enum AVPixelFormat recon_format;
1273  int err, i;
1274 
1275  hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
1276  if (!hwconfig) {
1277  err = AVERROR(ENOMEM);
1278  goto fail;
1279  }
1280  hwconfig->config_id = ctx->va_config;
1281 
1283  hwconfig);
1284  if (!constraints) {
1285  err = AVERROR(ENOMEM);
1286  goto fail;
1287  }
1288 
1289  // Probably we can use the input surface format as the surface format
1290  // of the reconstructed frames. If not, we just pick the first (only?)
1291  // format in the valid list and hope that it all works.
1292  recon_format = AV_PIX_FMT_NONE;
1293  if (constraints->valid_sw_formats) {
1294  for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
1295  if (ctx->input_frames->sw_format ==
1296  constraints->valid_sw_formats[i]) {
1297  recon_format = ctx->input_frames->sw_format;
1298  break;
1299  }
1300  }
1301  if (recon_format == AV_PIX_FMT_NONE) {
1302  // No match. Just use the first in the supported list and
1303  // hope for the best.
1304  recon_format = constraints->valid_sw_formats[0];
1305  }
1306  } else {
1307  // No idea what to use; copy input format.
1308  recon_format = ctx->input_frames->sw_format;
1309  }
1310  av_log(avctx, AV_LOG_DEBUG, "Using %s as format of "
1311  "reconstructed frames.\n", av_get_pix_fmt_name(recon_format));
1312 
1313  if (ctx->surface_width < constraints->min_width ||
1314  ctx->surface_height < constraints->min_height ||
1315  ctx->surface_width > constraints->max_width ||
1316  ctx->surface_height > constraints->max_height) {
1317  av_log(avctx, AV_LOG_ERROR, "Hardware does not support encoding at "
1318  "size %dx%d (constraints: width %d-%d height %d-%d).\n",
1319  ctx->surface_width, ctx->surface_height,
1320  constraints->min_width, constraints->max_width,
1321  constraints->min_height, constraints->max_height);
1322  err = AVERROR(EINVAL);
1323  goto fail;
1324  }
1325 
1326  av_freep(&hwconfig);
1327  av_hwframe_constraints_free(&constraints);
1328 
1330  if (!ctx->recon_frames_ref) {
1331  err = AVERROR(ENOMEM);
1332  goto fail;
1333  }
1335 
1337  ctx->recon_frames->sw_format = recon_format;
1338  ctx->recon_frames->width = ctx->surface_width;
1339  ctx->recon_frames->height = ctx->surface_height;
1340  // At most three IDR/I/P frames and two runs of B frames can be in
1341  // flight at any one time.
1342  ctx->recon_frames->initial_pool_size = 3 + 2 * avctx->max_b_frames;
1343 
1345  if (err < 0) {
1346  av_log(avctx, AV_LOG_ERROR, "Failed to initialise reconstructed "
1347  "frame context: %d.\n", err);
1348  goto fail;
1349  }
1350 
1351  err = 0;
1352  fail:
1353  av_freep(&hwconfig);
1354  av_hwframe_constraints_free(&constraints);
1355  return err;
1356 }
1357 
1359 {
1360  VAAPIEncodeContext *ctx = avctx->priv_data;
1361  AVVAAPIFramesContext *recon_hwctx = NULL;
1362  VAStatus vas;
1363  int err;
1364 
1365  if (!avctx->hw_frames_ctx) {
1366  av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
1367  "required to associate the encoding device.\n");
1368  return AVERROR(EINVAL);
1369  }
1370 
1371  ctx->codec_options = ctx->codec_options_data;
1372 
1373  ctx->va_config = VA_INVALID_ID;
1374  ctx->va_context = VA_INVALID_ID;
1375 
1376  ctx->priv_data = av_mallocz(ctx->codec->priv_data_size);
1377  if (!ctx->priv_data) {
1378  err = AVERROR(ENOMEM);
1379  goto fail;
1380  }
1381 
1383  if (!ctx->input_frames_ref) {
1384  err = AVERROR(ENOMEM);
1385  goto fail;
1386  }
1388 
1390  if (!ctx->device_ref) {
1391  err = AVERROR(ENOMEM);
1392  goto fail;
1393  }
1394  ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
1395  ctx->hwctx = ctx->device->hwctx;
1396 
1397  err = vaapi_encode_config_attributes(avctx);
1398  if (err < 0)
1399  goto fail;
1400 
1401  vas = vaCreateConfig(ctx->hwctx->display,
1402  ctx->va_profile, ctx->va_entrypoint,
1404  &ctx->va_config);
1405  if (vas != VA_STATUS_SUCCESS) {
1406  av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1407  "configuration: %d (%s).\n", vas, vaErrorStr(vas));
1408  err = AVERROR(EIO);
1409  goto fail;
1410  }
1411 
1412  err = vaapi_encode_create_recon_frames(avctx);
1413  if (err < 0)
1414  goto fail;
1415 
1416  recon_hwctx = ctx->recon_frames->hwctx;
1417  vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
1418  ctx->surface_width, ctx->surface_height,
1419  VA_PROGRESSIVE,
1420  recon_hwctx->surface_ids,
1421  recon_hwctx->nb_surfaces,
1422  &ctx->va_context);
1423  if (vas != VA_STATUS_SUCCESS) {
1424  av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1425  "context: %d (%s).\n", vas, vaErrorStr(vas));
1426  err = AVERROR(EIO);
1427  goto fail;
1428  }
1429 
1430  ctx->output_buffer_pool =
1431  av_buffer_pool_init2(sizeof(VABufferID), avctx,
1433  if (!ctx->output_buffer_pool) {
1434  err = AVERROR(ENOMEM);
1435  goto fail;
1436  }
1437 
1438  if (ctx->va_rc_mode & ~VA_RC_CQP) {
1439  err = vaapi_encode_init_rate_control(avctx);
1440  if (err < 0)
1441  goto fail;
1442  }
1443 
1444  if (ctx->codec->configure) {
1445  err = ctx->codec->configure(avctx);
1446  if (err < 0)
1447  goto fail;
1448  }
1449 
1450  if (avctx->compression_level >= 0) {
1451 #if VA_CHECK_VERSION(0, 36, 0)
1452  VAConfigAttrib attr = { VAConfigAttribEncQualityRange };
1453 
1454  vas = vaGetConfigAttributes(ctx->hwctx->display,
1455  ctx->va_profile,
1456  ctx->va_entrypoint,
1457  &attr, 1);
1458  if (vas != VA_STATUS_SUCCESS) {
1459  av_log(avctx, AV_LOG_WARNING, "Failed to query quality "
1460  "attribute: will use default compression level.\n");
1461  } else {
1462  if (avctx->compression_level > attr.value) {
1463  av_log(avctx, AV_LOG_WARNING, "Invalid compression "
1464  "level: valid range is 0-%d, using %d.\n",
1465  attr.value, attr.value);
1466  avctx->compression_level = attr.value;
1467  }
1468 
1469  ctx->quality_params.misc.type =
1470  VAEncMiscParameterTypeQualityLevel;
1471  ctx->quality_params.quality.quality_level =
1472  avctx->compression_level;
1473 
1474  ctx->global_params[ctx->nb_global_params] =
1475  &ctx->quality_params.misc;
1476  ctx->global_params_size[ctx->nb_global_params++] =
1477  sizeof(ctx->quality_params);
1478  }
1479 #else
1480  av_log(avctx, AV_LOG_WARNING, "The encode compression level "
1481  "option is not supported with this VAAPI version.\n");
1482 #endif
1483  }
1484 
1485  ctx->input_order = 0;
1486  ctx->output_delay = avctx->max_b_frames;
1487  ctx->decode_delay = 1;
1488  ctx->output_order = - ctx->output_delay - 1;
1489 
1490  // Currently we never generate I frames, only IDR.
1491  ctx->p_per_i = INT_MAX;
1492  ctx->b_per_p = avctx->max_b_frames;
1493 
1494  if (ctx->codec->sequence_params_size > 0) {
1495  ctx->codec_sequence_params =
1497  if (!ctx->codec_sequence_params) {
1498  err = AVERROR(ENOMEM);
1499  goto fail;
1500  }
1501  }
1502  if (ctx->codec->picture_params_size > 0) {
1503  ctx->codec_picture_params =
1505  if (!ctx->codec_picture_params) {
1506  err = AVERROR(ENOMEM);
1507  goto fail;
1508  }
1509  }
1510 
1511  if (ctx->codec->init_sequence_params) {
1512  err = ctx->codec->init_sequence_params(avctx);
1513  if (err < 0) {
1514  av_log(avctx, AV_LOG_ERROR, "Codec sequence initialisation "
1515  "failed: %d.\n", err);
1516  goto fail;
1517  }
1518  }
1519 
1520  // This should be configurable somehow. (Needs testing on a machine
1521  // where it actually overlaps properly, though.)
1522  ctx->issue_mode = ISSUE_MODE_MAXIMISE_THROUGHPUT;
1523 
1524  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
1525  ctx->codec->write_sequence_header) {
1527  size_t bit_len = 8 * sizeof(data);
1528 
1529  err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
1530  if (err < 0) {
1531  av_log(avctx, AV_LOG_ERROR, "Failed to write sequence header "
1532  "for extradata: %d.\n", err);
1533  goto fail;
1534  } else {
1535  avctx->extradata_size = (bit_len + 7) / 8;
1536  avctx->extradata = av_mallocz(avctx->extradata_size +
1538  if (!avctx->extradata) {
1539  err = AVERROR(ENOMEM);
1540  goto fail;
1541  }
1542  memcpy(avctx->extradata, data, avctx->extradata_size);
1543  }
1544  }
1545 
1546  return 0;
1547 
1548 fail:
1549  ff_vaapi_encode_close(avctx);
1550  return err;
1551 }
1552 
1554 {
1555  VAAPIEncodeContext *ctx = avctx->priv_data;
1556  VAAPIEncodePicture *pic, *next;
1557 
1558  for (pic = ctx->pic_start; pic; pic = next) {
1559  next = pic->next;
1560  vaapi_encode_free(avctx, pic);
1561  }
1562 
1563  if (ctx->va_context != VA_INVALID_ID) {
1564  vaDestroyContext(ctx->hwctx->display, ctx->va_context);
1565  ctx->va_context = VA_INVALID_ID;
1566  }
1567 
1568  if (ctx->va_config != VA_INVALID_ID) {
1569  vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
1570  ctx->va_config = VA_INVALID_ID;
1571  }
1572 
1574 
1577 
1580  av_buffer_unref(&ctx->device_ref);
1581 
1582  av_freep(&ctx->priv_data);
1583 
1584  return 0;
1585 }
This struct aggregates all the (hardware/vendor-specific) "high-level" state, i.e.
Definition: hwcontext.h:59
#define NULL
Definition: coverity.c:32
AVRational framerate
Definition: avcodec.h:2992
static av_cold int vaapi_encode_config_attributes(AVCodecContext *avctx)
Definition: vaapi_encode.c:961
VASurfaceID input_surface
Definition: vaapi_encode.h:68
VAProfile va_profile
Definition: vaapi_encode.h:96
VAEncMiscParameterBuffer misc
Definition: vaapi_encode.h:149
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
VAAPI-specific data associated with a frame pool.
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
VAEntrypoint va_entrypoint
Definition: vaapi_encode.h:98
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
static int vaapi_encode_free(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:544
char codec_options_data[0]
Definition: vaapi_encode.h:213
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1532
av_cold int ff_vaapi_encode_init(AVCodecContext *avctx)
int max_b_frames
maximum number of B-frames between non-B-frames Note: The output will be delayed by max_b_frames+1 re...
Definition: avcodec.h:1741
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2383
av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
int num
Numerator.
Definition: rational.h:59
int size
Definition: avcodec.h:1401
size_t priv_data_size
Definition: vaapi_encode.h:218
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:227
void * av_hwdevice_hwconfig_alloc(AVBufferRef *ref)
Allocate a HW-specific configuration structure for a given HW device.
Definition: hwcontext.c:520
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:207
static void vaapi_encode_free_output_buffer(void *opaque, uint8_t *data)
int(* write_slice_header)(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice, char *data, size_t *data_len)
Definition: vaapi_encode.h:253
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
void * codec_sequence_params
Definition: vaapi_encode.h:168
AVBufferRef * input_frames_ref
Definition: vaapi_encode.h:131
static AVPacket pkt
VAEncMiscParameterHRD hrd
Definition: vaapi_encode.h:154
size_t picture_params_size
Definition: vaapi_encode.h:228
AVHWDeviceContext * device
Definition: vaapi_encode.h:127
int max_width
The maximum size of frames in this hw_frames_ctx.
Definition: hwcontext.h:456
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1604
void av_hwframe_constraints_free(AVHWFramesConstraints **constraints)
Free an AVHWFrameConstraints structure.
Definition: hwcontext.c:556
unsigned int va_packed_headers
Definition: vaapi_encode.h:105
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
VAEncMiscParameterFrameRate fr
Definition: vaapi_encode.h:158
uint8_t
#define av_cold
Definition: attributes.h:82
#define av_malloc(s)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:150
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
int(* write_picture_header)(AVCodecContext *avctx, VAAPIEncodePicture *pic, char *data, size_t *data_len)
Definition: vaapi_encode.h:250
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
Definition: frame.c:400
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:294
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1582
AVBufferRef * output_buffer_ref
Definition: vaapi_encode.h:76
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:90
VABufferID * param_buffers
Definition: vaapi_encode.h:74
uint8_t * data
Definition: avcodec.h:1400
VAContextID va_context
Definition: vaapi_encode.h:124
#define AVERROR_EOF
End of file.
Definition: error.h:55
enum VAAPIEncodeContext::@147 issue_mode
VASurfaceID recon_surface
Definition: vaapi_encode.h:71
#define AV_BUFFER_FLAG_READONLY
Always treat the buffer as read-only, even when it has only one reference.
Definition: buffer.h:113
ptrdiff_t size
Definition: opengl_enc.c:101
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 int vaapi_encode_truncate_gop(AVCodecContext *avctx)
Definition: vaapi_encode.c:758
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
Definition: mem.c:198
#define av_log(a,...)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1432
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
Definition: avpacket.c:86
unsigned int va_rc_mode
Definition: vaapi_encode.h:102
VAConfigAttrib config_attributes[MAX_CONFIG_ATTRIBUTES]
Definition: vaapi_encode.h:120
AVHWFramesContext * input_frames
Definition: vaapi_encode.h:132
int width
Definition: frame.h:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
The driver does not destroy parameter buffers when they are used by vaRenderPicture().
VAAPI hardware pipeline configuration details.
#define AVERROR(e)
Definition: error.h:43
static int vaapi_encode_step(AVCodecContext *avctx, VAAPIEncodePicture *target)
Definition: vaapi_encode.c:576
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:163
int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *input_image, int *got_packet)
Definition: vaapi_encode.c:851
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
VAEncMiscParameterBuffer * global_params[MAX_GLOBAL_PARAMS]
Definition: vaapi_encode.h:143
int(* configure)(AVCodecContext *avctx)
Definition: vaapi_encode.h:223
GLenum GLint * params
Definition: opengl_enc.c:114
simple assert() macros that are a bit more flexible than ISO C assert().
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 av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
Definition: hwcontext.c:325
int(* init_picture_params)(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.h:233
void * codec_picture_params
Definition: vaapi_encode.h:80
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
#define fail()
Definition: checkasm.h:111
int(* write_extra_header)(AVCodecContext *avctx, VAAPIEncodePicture *pic, int index, int *type, char *data, size_t *data_len)
Definition: vaapi_encode.h:270
VAConfigID va_config
Definition: vaapi_encode.h:123
AVHWFramesContext * recon_frames
Definition: vaapi_encode.h:136
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1406
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2340
VAAPIEncodeSlice * slices
Definition: vaapi_encode.h:86
int initial_pool_size
Initial size of the frame pool.
Definition: hwcontext.h:197
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:284
static int vaapi_encode_get_next(AVCodecContext *avctx, VAAPIEncodePicture **pic_out)
Definition: vaapi_encode.c:653
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3148
static int vaapi_encode_make_param_buffer(AVCodecContext *avctx, VAAPIEncodePicture *pic, int type, char *data, size_t len)
Definition: vaapi_encode.c:78
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
AVFormatContext * ctx
Definition: movenc.c:48
unsigned int va_rt_format
Definition: vaapi_encode.h:100
struct VAAPIEncodePicture * next
Definition: vaapi_encode.h:56
static int vaapi_encode_discard(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:512
AVFrame * input_image
Definition: vaapi_encode.h:67
void * codec_picture_params
Definition: vaapi_encode.h:172
int n
Definition: avisynth_c.h:684
int64_t ts_ring[MAX_REORDER_DELAY *3]
Definition: vaapi_encode.h:199
AVBufferPool * output_buffer_pool
Definition: vaapi_encode.h:139
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
#define FF_ARRAY_ELEMS(a)
static av_cold int vaapi_encode_create_recon_frames(AVCodecContext *avctx)
VADisplay display
The VADisplay handle, to be filled by the user.
int(* write_sequence_header)(AVCodecContext *avctx, char *data, size_t *data_len)
Definition: vaapi_encode.h:248
struct VAAPIEncodePicture * refs[MAX_PICTURE_REFERENCES]
Definition: vaapi_encode.h:83
int min_width
The minimum size of frames in this hw_frames_ctx.
Definition: hwcontext.h:449
const struct VAAPIEncodeType * codec
Definition: vaapi_encode.h:93
Libavcodec external API header.
This struct describes the constraints on hardware frames attached to a given device with a hardware-s...
Definition: hwcontext.h:431
int compression_level
Definition: avcodec.h:1554
VAAPIEncodePicture * pic_start
Definition: vaapi_encode.h:175
main external API structure.
Definition: avcodec.h:1482
AVHWFramesConstraints * av_hwdevice_get_hwframe_constraints(AVBufferRef *ref, const void *hwconfig)
Get the constraints on HW frames given a device and the HW-specific configuration to be used with tha...
Definition: hwcontext.c:531
uint8_t * data
The data buffer.
Definition: buffer.h:89
int(* write_extra_buffer)(AVCodecContext *avctx, VAAPIEncodePicture *pic, int index, int *type, char *data, size_t *data_len)
Definition: vaapi_encode.h:262
int qmin
minimum quantizer
Definition: avcodec.h:2319
static VAAPIEncodePicture * vaapi_encode_alloc(void)
Definition: vaapi_encode.c:529
void * hwctx
The format-specific data, allocated and freed automatically along with this context.
Definition: hwcontext.h:160
size_t slice_params_size
Definition: vaapi_encode.h:229
unsigned int driver_quirks
Driver quirks to apply - this is filled by av_hwdevice_ctx_init(), with reference to a table of known...
void * buf
Definition: avisynth_c.h:690
GLint GLenum type
Definition: opengl_enc.c:105
int extradata_size
Definition: avcodec.h:1583
static const char *const picture_type_name[]
Definition: vaapi_encode.c:30
static const AVProfile profiles[]
void av_buffer_pool_uninit(AVBufferPool **ppool)
Mark the pool as being available for freeing.
Definition: buffer.c:275
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:122
AVBufferRef * recon_frames_ref
Definition: vaapi_encode.h:135
struct VAAPIEncodeContext::@144 rc_params
AVBufferRef * device_ref
Definition: vaapi_encode.h:126
VAAPIEncodePicture * pic_end
Definition: vaapi_encode.h:175
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
size_t global_params_size[MAX_GLOBAL_PARAMS]
Definition: vaapi_encode.h:144
static int vaapi_encode_issue(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:137
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1676
VAEncMiscParameterRateControl rc
Definition: vaapi_encode.h:150
A reference to a data buffer.
Definition: buffer.h:81
size_t sequence_params_size
Definition: vaapi_encode.h:227
int
static int vaapi_encode_clear_old(AVCodecContext *avctx)
Definition: vaapi_encode.c:819
common internal and external API header
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
static int vaapi_encode_output(AVCodecContext *avctx, VAAPIEncodePicture *pic, AVPacket *pkt)
Definition: vaapi_encode.c:451
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:239
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
int den
Denominator.
Definition: rational.h:60
#define AV_INPUT_BUFFER_PADDING_SIZE
Required number of additionally allocated bytes at the end of the input bitstream for decoding...
Definition: avcodec.h:770
void * priv_data
Definition: avcodec.h:1509
#define av_free(p)
static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx)
int len
enum AVPixelFormat * valid_sw_formats
A list of possible values for sw_format in the hw_frames_ctx, terminated by AV_PIX_FMT_NONE.
Definition: hwcontext.h:443
void * codec_slice_params
Definition: vaapi_encode.h:52
AVFrame * recon_image
Definition: vaapi_encode.h:70
int(* init_slice_params)(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice)
Definition: vaapi_encode.h:235
static AVBufferRef * vaapi_encode_alloc_output_buffer(void *opaque, int size)
static int vaapi_encode_wait(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:106
VAConfigID config_id
ID of a VAAPI pipeline configuration.
int(* init_sequence_params)(AVCodecContext *avctx)
Definition: vaapi_encode.h:232
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1399
static int vaapi_encode_make_packed_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, int type, char *data, size_t bit_len)
Definition: vaapi_encode.c:32
struct VAAPIEncodeContext::@145 hrd_params
int height
Definition: frame.h:259
#define av_freep(p)
VASurfaceID * surface_ids
The surfaces IDs of all surfaces in the pool after creation.
void INT64 start
Definition: avisynth_c.h:690
AVBufferRef * av_buffer_pool_get(AVBufferPool *pool)
Allocate a new AVBuffer, reusing an old buffer from the pool when available.
Definition: buffer.c:334
#define av_malloc_array(a, b)
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
VABufferID output_buffer
Definition: vaapi_encode.h:77
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:220
struct VAAPIEncodeContext::@146 fr_params
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1377
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1393
GLuint buffer
Definition: opengl_enc.c:102
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2355
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
AVVAAPIDeviceContext * hwctx
Definition: vaapi_encode.h:128
static uint8_t tmp[11]
Definition: aes_ctr.c:26