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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  if (pic->nb_slices > 0) {
325  pic->slices = av_mallocz_array(pic->nb_slices, sizeof(*pic->slices));
326  if (!pic->slices) {
327  err = AVERROR(ENOMEM);
328  goto fail;
329  }
330  }
331  for (i = 0; i < pic->nb_slices; i++) {
332  slice = &pic->slices[i];
333  slice->index = i;
334 
335  if (ctx->codec->slice_params_size > 0) {
337  if (!slice->codec_slice_params) {
338  err = AVERROR(ENOMEM);
339  goto fail;
340  }
341  }
342 
343  if (ctx->codec->init_slice_params) {
344  err = ctx->codec->init_slice_params(avctx, pic, slice);
345  if (err < 0) {
346  av_log(avctx, AV_LOG_ERROR, "Failed to initialise slice "
347  "parameters: %d.\n", err);
348  goto fail;
349  }
350  }
351 
352  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SLICE &&
353  ctx->codec->write_slice_header) {
354  bit_len = 8 * sizeof(data);
355  err = ctx->codec->write_slice_header(avctx, pic, slice,
356  data, &bit_len);
357  if (err < 0) {
358  av_log(avctx, AV_LOG_ERROR, "Failed to write per-slice "
359  "header: %d.\n", err);
360  goto fail;
361  }
362  err = vaapi_encode_make_packed_header(avctx, pic,
363  ctx->codec->slice_header_type,
364  data, bit_len);
365  if (err < 0)
366  goto fail;
367  }
368 
369  if (ctx->codec->init_slice_params) {
370  err = vaapi_encode_make_param_buffer(avctx, pic,
371  VAEncSliceParameterBufferType,
372  slice->codec_slice_params,
373  ctx->codec->slice_params_size);
374  if (err < 0)
375  goto fail;
376  }
377  }
378 
379  vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
380  pic->input_surface);
381  if (vas != VA_STATUS_SUCCESS) {
382  av_log(avctx, AV_LOG_ERROR, "Failed to begin picture encode issue: "
383  "%d (%s).\n", vas, vaErrorStr(vas));
384  err = AVERROR(EIO);
385  goto fail_with_picture;
386  }
387 
388  vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
389  pic->param_buffers, pic->nb_param_buffers);
390  if (vas != VA_STATUS_SUCCESS) {
391  av_log(avctx, AV_LOG_ERROR, "Failed to upload encode parameters: "
392  "%d (%s).\n", vas, vaErrorStr(vas));
393  err = AVERROR(EIO);
394  goto fail_with_picture;
395  }
396 
397  vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
398  if (vas != VA_STATUS_SUCCESS) {
399  av_log(avctx, AV_LOG_ERROR, "Failed to end picture encode issue: "
400  "%d (%s).\n", vas, vaErrorStr(vas));
401  err = AVERROR(EIO);
402  // vaRenderPicture() has been called here, so we should not destroy
403  // the parameter buffers unless separate destruction is required.
404  if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
406  goto fail;
407  else
408  goto fail_at_end;
409  }
410 
411  if (CONFIG_VAAPI_1 || ctx->hwctx->driver_quirks &
413  for (i = 0; i < pic->nb_param_buffers; i++) {
414  vas = vaDestroyBuffer(ctx->hwctx->display,
415  pic->param_buffers[i]);
416  if (vas != VA_STATUS_SUCCESS) {
417  av_log(avctx, AV_LOG_ERROR, "Failed to destroy "
418  "param buffer %#x: %d (%s).\n",
419  pic->param_buffers[i], vas, vaErrorStr(vas));
420  // And ignore.
421  }
422  }
423  }
424 
425  pic->encode_issued = 1;
426 
427  if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
428  return vaapi_encode_wait(avctx, pic);
429  else
430  return 0;
431 
432 fail_with_picture:
433  vaEndPicture(ctx->hwctx->display, ctx->va_context);
434 fail:
435  for(i = 0; i < pic->nb_param_buffers; i++)
436  vaDestroyBuffer(ctx->hwctx->display, pic->param_buffers[i]);
437  for (i = 0; i < pic->nb_slices; i++) {
438  if (pic->slices) {
439  av_freep(&pic->slices[i].priv_data);
441  }
442  }
443 fail_at_end:
445  av_freep(&pic->param_buffers);
446  av_freep(&pic->slices);
447  av_frame_free(&pic->recon_image);
449  pic->output_buffer = VA_INVALID_ID;
450  return err;
451 }
452 
455 {
456  VAAPIEncodeContext *ctx = avctx->priv_data;
457  VACodedBufferSegment *buf_list, *buf;
458  VAStatus vas;
459  int err;
460 
461  err = vaapi_encode_wait(avctx, pic);
462  if (err < 0)
463  return err;
464 
465  buf_list = NULL;
466  vas = vaMapBuffer(ctx->hwctx->display, pic->output_buffer,
467  (void**)&buf_list);
468  if (vas != VA_STATUS_SUCCESS) {
469  av_log(avctx, AV_LOG_ERROR, "Failed to map output buffers: "
470  "%d (%s).\n", vas, vaErrorStr(vas));
471  err = AVERROR(EIO);
472  goto fail;
473  }
474 
475  for (buf = buf_list; buf; buf = buf->next) {
476  av_log(avctx, AV_LOG_DEBUG, "Output buffer: %u bytes "
477  "(status %08x).\n", buf->size, buf->status);
478 
479  err = av_new_packet(pkt, buf->size);
480  if (err < 0)
481  goto fail_mapped;
482 
483  memcpy(pkt->data, buf->buf, buf->size);
484  }
485 
486  if (pic->type == PICTURE_TYPE_IDR)
487  pkt->flags |= AV_PKT_FLAG_KEY;
488 
489  pkt->pts = pic->pts;
490 
491  vas = vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
492  if (vas != VA_STATUS_SUCCESS) {
493  av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
494  "%d (%s).\n", vas, vaErrorStr(vas));
495  err = AVERROR(EIO);
496  goto fail;
497  }
498 
500  pic->output_buffer = VA_INVALID_ID;
501 
502  av_log(avctx, AV_LOG_DEBUG, "Output read for pic %"PRId64"/%"PRId64".\n",
503  pic->display_order, pic->encode_order);
504  return 0;
505 
506 fail_mapped:
507  vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
508 fail:
510  pic->output_buffer = VA_INVALID_ID;
511  return err;
512 }
513 
515  VAAPIEncodePicture *pic)
516 {
517  vaapi_encode_wait(avctx, pic);
518 
519  if (pic->output_buffer_ref) {
520  av_log(avctx, AV_LOG_DEBUG, "Discard output for pic "
521  "%"PRId64"/%"PRId64".\n",
522  pic->display_order, pic->encode_order);
523 
525  pic->output_buffer = VA_INVALID_ID;
526  }
527 
528  return 0;
529 }
530 
532 {
533  VAAPIEncodePicture *pic;
534 
535  pic = av_mallocz(sizeof(*pic));
536  if (!pic)
537  return NULL;
538 
539  pic->input_surface = VA_INVALID_ID;
540  pic->recon_surface = VA_INVALID_ID;
541  pic->output_buffer = VA_INVALID_ID;
542 
543  return pic;
544 }
545 
547  VAAPIEncodePicture *pic)
548 {
549  int i;
550 
551  if (pic->encode_issued)
552  vaapi_encode_discard(avctx, pic);
553 
554  for (i = 0; i < pic->nb_slices; i++) {
555  if (pic->slices) {
556  av_freep(&pic->slices[i].priv_data);
558  }
559  }
561 
562  av_frame_free(&pic->input_image);
563  av_frame_free(&pic->recon_image);
564 
565  av_freep(&pic->param_buffers);
566  av_freep(&pic->slices);
567  // Output buffer should already be destroyed.
568  av_assert0(pic->output_buffer == VA_INVALID_ID);
569 
570  av_freep(&pic->priv_data);
572 
573  av_free(pic);
574 
575  return 0;
576 }
577 
579  VAAPIEncodePicture *target)
580 {
581  VAAPIEncodeContext *ctx = avctx->priv_data;
582  VAAPIEncodePicture *pic;
583  int i, err;
584 
585  if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING ||
586  ctx->issue_mode == ISSUE_MODE_MINIMISE_LATENCY) {
587  // These two modes are equivalent, except that we wait for
588  // immediate completion on each operation if serialised.
589 
590  if (!target) {
591  // No target, nothing to do yet.
592  return 0;
593  }
594 
595  if (target->encode_complete) {
596  // Already done.
597  return 0;
598  }
599 
600  pic = target;
601  for (i = 0; i < pic->nb_refs; i++) {
602  if (!pic->refs[i]->encode_complete) {
603  err = vaapi_encode_step(avctx, pic->refs[i]);
604  if (err < 0)
605  return err;
606  }
607  }
608 
609  err = vaapi_encode_issue(avctx, pic);
610  if (err < 0)
611  return err;
612 
613  } else if (ctx->issue_mode == ISSUE_MODE_MAXIMISE_THROUGHPUT) {
614  int activity;
615 
616  // Run through the list of all available pictures repeatedly
617  // and issue the first one found which has all dependencies
618  // available (including previously-issued but not necessarily
619  // completed pictures).
620  do {
621  activity = 0;
622  for (pic = ctx->pic_start; pic; pic = pic->next) {
623  if (!pic->input_available || pic->encode_issued)
624  continue;
625  for (i = 0; i < pic->nb_refs; i++) {
626  if (!pic->refs[i]->encode_issued)
627  break;
628  }
629  if (i < pic->nb_refs)
630  continue;
631  err = vaapi_encode_issue(avctx, pic);
632  if (err < 0)
633  return err;
634  activity = 1;
635  // Start again from the beginning of the list,
636  // because issuing this picture may have satisfied
637  // forward dependencies of earlier ones.
638  break;
639  }
640  } while(activity);
641 
642  // If we had a defined target for this step then it will
643  // always have been issued by now.
644  if (target) {
645  av_assert0(target->encode_issued && "broken dependencies?");
646  }
647 
648  } else {
649  av_assert0(0);
650  }
651 
652  return 0;
653 }
654 
656  VAAPIEncodePicture **pic_out)
657 {
658  VAAPIEncodeContext *ctx = avctx->priv_data;
659  VAAPIEncodePicture *start, *end, *pic;
660  int i;
661 
662  for (pic = ctx->pic_start; pic; pic = pic->next) {
663  if (pic->next)
664  av_assert0(pic->display_order + 1 == pic->next->display_order);
665  if (pic->display_order == ctx->input_order) {
666  *pic_out = pic;
667  return 0;
668  }
669  }
670 
671  pic = vaapi_encode_alloc();
672  if (!pic)
673  return AVERROR(ENOMEM);
674 
675  if (ctx->input_order == 0 || ctx->force_idr ||
676  ctx->gop_counter >= avctx->gop_size) {
677  pic->type = PICTURE_TYPE_IDR;
678  ctx->force_idr = 0;
679  ctx->gop_counter = 1;
680  ctx->p_counter = 0;
681  } else if (ctx->p_counter >= ctx->p_per_i) {
682  pic->type = PICTURE_TYPE_I;
683  ++ctx->gop_counter;
684  ctx->p_counter = 0;
685  } else {
686  pic->type = PICTURE_TYPE_P;
687  pic->refs[0] = ctx->pic_end;
688  pic->nb_refs = 1;
689  ++ctx->gop_counter;
690  ++ctx->p_counter;
691  }
692  start = end = pic;
693 
694  if (pic->type != PICTURE_TYPE_IDR) {
695  // If that was not an IDR frame, add B-frames display-before and
696  // encode-after it, but not exceeding the GOP size.
697 
698  for (i = 0; i < ctx->b_per_p &&
699  ctx->gop_counter < avctx->gop_size; i++) {
700  pic = vaapi_encode_alloc();
701  if (!pic)
702  goto fail;
703 
704  pic->type = PICTURE_TYPE_B;
705  pic->refs[0] = ctx->pic_end;
706  pic->refs[1] = end;
707  pic->nb_refs = 2;
708 
709  pic->next = start;
710  pic->display_order = ctx->input_order + ctx->b_per_p - i - 1;
711  pic->encode_order = pic->display_order + 1;
712  start = pic;
713 
714  ++ctx->gop_counter;
715  }
716  }
717 
718  if (ctx->input_order == 0) {
719  pic->display_order = 0;
720  pic->encode_order = 0;
721 
722  ctx->pic_start = ctx->pic_end = pic;
723 
724  } else {
725  for (i = 0, pic = start; pic; i++, pic = pic->next) {
726  pic->display_order = ctx->input_order + i;
727  if (end->type == PICTURE_TYPE_IDR)
728  pic->encode_order = ctx->input_order + i;
729  else if (pic == end)
730  pic->encode_order = ctx->input_order;
731  else
732  pic->encode_order = ctx->input_order + i + 1;
733  }
734 
735  av_assert0(ctx->pic_end);
736  ctx->pic_end->next = start;
737  ctx->pic_end = end;
738  }
739  *pic_out = start;
740 
741  av_log(avctx, AV_LOG_DEBUG, "Pictures:");
742  for (pic = ctx->pic_start; pic; pic = pic->next) {
743  av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
744  picture_type_name[pic->type],
745  pic->display_order, pic->encode_order);
746  }
747  av_log(avctx, AV_LOG_DEBUG, "\n");
748 
749  return 0;
750 
751 fail:
752  while (start) {
753  pic = start->next;
754  vaapi_encode_free(avctx, start);
755  start = pic;
756  }
757  return AVERROR(ENOMEM);
758 }
759 
761 {
762  VAAPIEncodeContext *ctx = avctx->priv_data;
763  VAAPIEncodePicture *pic, *last_pic, *next;
764 
766 
767  // Find the last picture we actually have input for.
768  for (pic = ctx->pic_start; pic; pic = pic->next) {
769  if (!pic->input_available)
770  break;
771  last_pic = pic;
772  }
773 
774  if (pic) {
775  if (last_pic->type == PICTURE_TYPE_B) {
776  // Some fixing up is required. Change the type of this
777  // picture to P, then modify preceding B references which
778  // point beyond it to point at it instead.
779 
780  last_pic->type = PICTURE_TYPE_P;
781  last_pic->encode_order = last_pic->refs[1]->encode_order;
782 
783  for (pic = ctx->pic_start; pic != last_pic; pic = pic->next) {
784  if (pic->type == PICTURE_TYPE_B &&
785  pic->refs[1] == last_pic->refs[1])
786  pic->refs[1] = last_pic;
787  }
788 
789  last_pic->nb_refs = 1;
790  last_pic->refs[1] = NULL;
791  } else {
792  // We can use the current structure (no references point
793  // beyond the end), but there are unused pics to discard.
794  }
795 
796  // Discard all following pics, they will never be used.
797  for (pic = last_pic->next; pic; pic = next) {
798  next = pic->next;
799  vaapi_encode_free(avctx, pic);
800  }
801 
802  last_pic->next = NULL;
803  ctx->pic_end = last_pic;
804 
805  } else {
806  // Input is available for all pictures, so we don't need to
807  // mangle anything.
808  }
809 
810  av_log(avctx, AV_LOG_DEBUG, "Pictures ending truncated GOP:");
811  for (pic = ctx->pic_start; pic; pic = pic->next) {
812  av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
813  picture_type_name[pic->type],
814  pic->display_order, pic->encode_order);
815  }
816  av_log(avctx, AV_LOG_DEBUG, "\n");
817 
818  return 0;
819 }
820 
822 {
823  VAAPIEncodeContext *ctx = avctx->priv_data;
824  VAAPIEncodePicture *pic, *old;
825  int i;
826 
827  while (ctx->pic_start != ctx->pic_end) {
828  old = ctx->pic_start;
829  if (old->encode_order > ctx->output_order)
830  break;
831 
832  for (pic = old->next; pic; pic = pic->next) {
833  if (pic->encode_complete)
834  continue;
835  for (i = 0; i < pic->nb_refs; i++) {
836  if (pic->refs[i] == old) {
837  // We still need this picture because it's referred to
838  // directly by a later one, so it and all following
839  // pictures have to stay.
840  return 0;
841  }
842  }
843  }
844 
845  pic = ctx->pic_start;
846  ctx->pic_start = pic->next;
847  vaapi_encode_free(avctx, pic);
848  }
849 
850  return 0;
851 }
852 
854  const AVFrame *input_image, int *got_packet)
855 {
856  VAAPIEncodeContext *ctx = avctx->priv_data;
857  VAAPIEncodePicture *pic;
858  int err;
859 
860  if (input_image) {
861  av_log(avctx, AV_LOG_DEBUG, "Encode frame: %ux%u (%"PRId64").\n",
862  input_image->width, input_image->height, input_image->pts);
863 
864  if (input_image->pict_type == AV_PICTURE_TYPE_I) {
865  err = vaapi_encode_truncate_gop(avctx);
866  if (err < 0)
867  goto fail;
868  ctx->force_idr = 1;
869  }
870 
871  err = vaapi_encode_get_next(avctx, &pic);
872  if (err) {
873  av_log(avctx, AV_LOG_ERROR, "Input setup failed: %d.\n", err);
874  return err;
875  }
876 
877  pic->input_image = av_frame_alloc();
878  if (!pic->input_image) {
879  err = AVERROR(ENOMEM);
880  goto fail;
881  }
882  err = av_frame_ref(pic->input_image, input_image);
883  if (err < 0)
884  goto fail;
885  pic->input_surface = (VASurfaceID)(uintptr_t)input_image->data[3];
886  pic->pts = input_image->pts;
887 
888  if (ctx->input_order == 0)
889  ctx->first_pts = pic->pts;
890  if (ctx->input_order == ctx->decode_delay)
891  ctx->dts_pts_diff = pic->pts - ctx->first_pts;
892  if (ctx->output_delay > 0)
893  ctx->ts_ring[ctx->input_order % (3 * ctx->output_delay)] = pic->pts;
894 
895  pic->input_available = 1;
896 
897  } else {
898  if (!ctx->end_of_stream) {
899  err = vaapi_encode_truncate_gop(avctx);
900  if (err < 0)
901  goto fail;
902  ctx->end_of_stream = 1;
903  }
904  }
905 
906  ++ctx->input_order;
907  ++ctx->output_order;
908  av_assert0(ctx->output_order + ctx->output_delay + 1 == ctx->input_order);
909 
910  for (pic = ctx->pic_start; pic; pic = pic->next)
911  if (pic->encode_order == ctx->output_order)
912  break;
913 
914  // pic can be null here if we don't have a specific target in this
915  // iteration. We might still issue encodes if things can be overlapped,
916  // even though we don't intend to output anything.
917 
918  err = vaapi_encode_step(avctx, pic);
919  if (err < 0) {
920  av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
921  goto fail;
922  }
923 
924  if (!pic) {
925  *got_packet = 0;
926  } else {
927  err = vaapi_encode_output(avctx, pic, pkt);
928  if (err < 0) {
929  av_log(avctx, AV_LOG_ERROR, "Output failed: %d.\n", err);
930  goto fail;
931  }
932 
933  if (ctx->output_delay == 0) {
934  pkt->dts = pkt->pts;
935  } else if (ctx->output_order < ctx->decode_delay) {
936  if (ctx->ts_ring[ctx->output_order] < INT64_MIN + ctx->dts_pts_diff)
937  pkt->dts = INT64_MIN;
938  else
939  pkt->dts = ctx->ts_ring[ctx->output_order] - ctx->dts_pts_diff;
940  } else {
941  pkt->dts = ctx->ts_ring[(ctx->output_order - ctx->decode_delay) %
942  (3 * ctx->output_delay)];
943  }
944 
945  *got_packet = 1;
946  }
947 
948  err = vaapi_encode_clear_old(avctx);
949  if (err < 0) {
950  av_log(avctx, AV_LOG_ERROR, "List clearing failed: %d.\n", err);
951  goto fail;
952  }
953 
954  return 0;
955 
956 fail:
957  // Unclear what to clean up on failure. There are probably some things we
958  // could do usefully clean up here, but for now just leave them for uninit()
959  // to do instead.
960  return err;
961 }
962 
964 {
965  VAAPIEncodeContext *ctx = avctx->priv_data;
966  VAStatus vas;
967  int i, n, err;
968  VAProfile *profiles = NULL;
969  VAEntrypoint *entrypoints = NULL;
970  VAConfigAttrib attr[] = {
971  { VAConfigAttribRTFormat },
972  { VAConfigAttribRateControl },
973  { VAConfigAttribEncMaxRefFrames },
974  { VAConfigAttribEncPackedHeaders },
975  };
976 
977  n = vaMaxNumProfiles(ctx->hwctx->display);
978  profiles = av_malloc_array(n, sizeof(VAProfile));
979  if (!profiles) {
980  err = AVERROR(ENOMEM);
981  goto fail;
982  }
983  vas = vaQueryConfigProfiles(ctx->hwctx->display, profiles, &n);
984  if (vas != VA_STATUS_SUCCESS) {
985  av_log(ctx, AV_LOG_ERROR, "Failed to query profiles: %d (%s).\n",
986  vas, vaErrorStr(vas));
987  err = AVERROR(ENOSYS);
988  goto fail;
989  }
990  for (i = 0; i < n; i++) {
991  if (profiles[i] == ctx->va_profile)
992  break;
993  }
994  if (i >= n) {
995  av_log(ctx, AV_LOG_ERROR, "Encoding profile not found (%d).\n",
996  ctx->va_profile);
997  err = AVERROR(ENOSYS);
998  goto fail;
999  }
1000 
1001  n = vaMaxNumEntrypoints(ctx->hwctx->display);
1002  entrypoints = av_malloc_array(n, sizeof(VAEntrypoint));
1003  if (!entrypoints) {
1004  err = AVERROR(ENOMEM);
1005  goto fail;
1006  }
1007  vas = vaQueryConfigEntrypoints(ctx->hwctx->display, ctx->va_profile,
1008  entrypoints, &n);
1009  if (vas != VA_STATUS_SUCCESS) {
1010  av_log(ctx, AV_LOG_ERROR, "Failed to query entrypoints for "
1011  "profile %u: %d (%s).\n", ctx->va_profile,
1012  vas, vaErrorStr(vas));
1013  err = AVERROR(ENOSYS);
1014  goto fail;
1015  }
1016  for (i = 0; i < n; i++) {
1017  if (entrypoints[i] == ctx->va_entrypoint)
1018  break;
1019  }
1020  if (i >= n) {
1021  av_log(ctx, AV_LOG_ERROR, "Encoding entrypoint not found "
1022  "(%d / %d).\n", ctx->va_profile, ctx->va_entrypoint);
1023  err = AVERROR(ENOSYS);
1024  goto fail;
1025  }
1026 
1027  vas = vaGetConfigAttributes(ctx->hwctx->display,
1028  ctx->va_profile, ctx->va_entrypoint,
1029  attr, FF_ARRAY_ELEMS(attr));
1030  if (vas != VA_STATUS_SUCCESS) {
1031  av_log(avctx, AV_LOG_ERROR, "Failed to fetch config "
1032  "attributes: %d (%s).\n", vas, vaErrorStr(vas));
1033  return AVERROR(EINVAL);
1034  }
1035 
1036  for (i = 0; i < FF_ARRAY_ELEMS(attr); i++) {
1037  if (attr[i].value == VA_ATTRIB_NOT_SUPPORTED) {
1038  // Unfortunately we have to treat this as "don't know" and hope
1039  // for the best, because the Intel MJPEG encoder returns this
1040  // for all the interesting attributes.
1041  av_log(avctx, AV_LOG_DEBUG, "Attribute (%d) is not supported.\n",
1042  attr[i].type);
1043  continue;
1044  }
1045  switch (attr[i].type) {
1046  case VAConfigAttribRTFormat:
1047  if (!(ctx->va_rt_format & attr[i].value)) {
1048  av_log(avctx, AV_LOG_ERROR, "Surface RT format %#x "
1049  "is not supported (mask %#x).\n",
1050  ctx->va_rt_format, attr[i].value);
1051  err = AVERROR(EINVAL);
1052  goto fail;
1053  }
1055  (VAConfigAttrib) {
1056  .type = VAConfigAttribRTFormat,
1057  .value = ctx->va_rt_format,
1058  };
1059  break;
1060  case VAConfigAttribRateControl:
1061  // Hack for backward compatibility: CBR was the only
1062  // usable RC mode for a long time, so old drivers will
1063  // only have it. Normal default options may now choose
1064  // VBR and then fail, however, so override it here with
1065  // CBR if that is the only supported mode.
1066  if (ctx->va_rc_mode == VA_RC_VBR &&
1067  !(attr[i].value & VA_RC_VBR) &&
1068  (attr[i].value & VA_RC_CBR)) {
1069  av_log(avctx, AV_LOG_WARNING, "VBR rate control is "
1070  "not supported with this driver version; "
1071  "using CBR instead.\n");
1072  ctx->va_rc_mode = VA_RC_CBR;
1073  }
1074  if (!(ctx->va_rc_mode & attr[i].value)) {
1075  av_log(avctx, AV_LOG_ERROR, "Rate control mode %#x "
1076  "is not supported (mask: %#x).\n",
1077  ctx->va_rc_mode, attr[i].value);
1078  err = AVERROR(EINVAL);
1079  goto fail;
1080  }
1082  (VAConfigAttrib) {
1083  .type = VAConfigAttribRateControl,
1084  .value = ctx->va_rc_mode,
1085  };
1086  break;
1087  case VAConfigAttribEncMaxRefFrames:
1088  {
1089  unsigned int ref_l0 = attr[i].value & 0xffff;
1090  unsigned int ref_l1 = (attr[i].value >> 16) & 0xffff;
1091 
1092  if (avctx->gop_size > 1 && ref_l0 < 1) {
1093  av_log(avctx, AV_LOG_ERROR, "P frames are not "
1094  "supported (%#x).\n", attr[i].value);
1095  err = AVERROR(EINVAL);
1096  goto fail;
1097  }
1098  if (avctx->max_b_frames > 0 && ref_l1 < 1) {
1099  av_log(avctx, AV_LOG_WARNING, "B frames are not "
1100  "supported (%#x) by the underlying driver.\n",
1101  attr[i].value);
1102  avctx->max_b_frames = 0;
1103  }
1104  }
1105  break;
1106  case VAConfigAttribEncPackedHeaders:
1107  if (ctx->va_packed_headers & ~attr[i].value) {
1108  // This isn't fatal, but packed headers are always
1109  // preferable because they are under our control.
1110  // When absent, the driver is generating them and some
1111  // features may not work (e.g. VUI or SEI in H.264).
1112  av_log(avctx, AV_LOG_WARNING, "Warning: some packed "
1113  "headers are not supported (want %#x, got %#x).\n",
1114  ctx->va_packed_headers, attr[i].value);
1115  ctx->va_packed_headers &= attr[i].value;
1116  }
1118  (VAConfigAttrib) {
1119  .type = VAConfigAttribEncPackedHeaders,
1120  .value = ctx->va_packed_headers,
1121  };
1122  break;
1123  default:
1124  av_assert0(0 && "Unexpected config attribute.");
1125  }
1126  }
1127 
1128  err = 0;
1129 fail:
1130  av_freep(&profiles);
1131  av_freep(&entrypoints);
1132  return err;
1133 }
1134 
1136 {
1137  VAAPIEncodeContext *ctx = avctx->priv_data;
1138  int rc_bits_per_second;
1139  int rc_target_percentage;
1140  int rc_window_size;
1141  int hrd_buffer_size;
1142  int hrd_initial_buffer_fullness;
1143  int fr_num, fr_den;
1144 
1145  if (avctx->bit_rate > INT32_MAX) {
1146  av_log(avctx, AV_LOG_ERROR, "Target bitrate of 2^31 bps or "
1147  "higher is not supported.\n");
1148  return AVERROR(EINVAL);
1149  }
1150 
1151  if (avctx->rc_buffer_size)
1152  hrd_buffer_size = avctx->rc_buffer_size;
1153  else
1154  hrd_buffer_size = avctx->bit_rate;
1155  if (avctx->rc_initial_buffer_occupancy)
1156  hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
1157  else
1158  hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
1159 
1160  if (ctx->va_rc_mode == VA_RC_CBR) {
1161  rc_bits_per_second = avctx->bit_rate;
1162  rc_target_percentage = 100;
1163  rc_window_size = 1000;
1164  } else {
1165  if (avctx->rc_max_rate < avctx->bit_rate) {
1166  // Max rate is unset or invalid, just use the normal bitrate.
1167  rc_bits_per_second = avctx->bit_rate;
1168  rc_target_percentage = 100;
1169  } else {
1170  rc_bits_per_second = avctx->rc_max_rate;
1171  rc_target_percentage = (avctx->bit_rate * 100) / rc_bits_per_second;
1172  }
1173  rc_window_size = (hrd_buffer_size * 1000) / avctx->bit_rate;
1174  }
1175 
1176  ctx->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
1177  ctx->rc_params.rc = (VAEncMiscParameterRateControl) {
1178  .bits_per_second = rc_bits_per_second,
1179  .target_percentage = rc_target_percentage,
1180  .window_size = rc_window_size,
1181  .initial_qp = 0,
1182  .min_qp = (avctx->qmin > 0 ? avctx->qmin : 0),
1183  .basic_unit_size = 0,
1184  };
1185  ctx->global_params[ctx->nb_global_params] =
1186  &ctx->rc_params.misc;
1187  ctx->global_params_size[ctx->nb_global_params++] =
1188  sizeof(ctx->rc_params);
1189 
1190  ctx->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
1191  ctx->hrd_params.hrd = (VAEncMiscParameterHRD) {
1192  .initial_buffer_fullness = hrd_initial_buffer_fullness,
1193  .buffer_size = hrd_buffer_size,
1194  };
1195  ctx->global_params[ctx->nb_global_params] =
1196  &ctx->hrd_params.misc;
1197  ctx->global_params_size[ctx->nb_global_params++] =
1198  sizeof(ctx->hrd_params);
1199 
1200  if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
1201  av_reduce(&fr_num, &fr_den,
1202  avctx->framerate.num, avctx->framerate.den, 65535);
1203  else
1204  av_reduce(&fr_num, &fr_den,
1205  avctx->time_base.den, avctx->time_base.num, 65535);
1206 
1207  ctx->fr_params.misc.type = VAEncMiscParameterTypeFrameRate;
1208  ctx->fr_params.fr.framerate = (unsigned int)fr_den << 16 | fr_num;
1209 
1210 #if VA_CHECK_VERSION(0, 40, 0)
1211  ctx->global_params[ctx->nb_global_params] =
1212  &ctx->fr_params.misc;
1213  ctx->global_params_size[ctx->nb_global_params++] =
1214  sizeof(ctx->fr_params);
1215 #endif
1216 
1217  return 0;
1218 }
1219 
1220 static void vaapi_encode_free_output_buffer(void *opaque,
1221  uint8_t *data)
1222 {
1223  AVCodecContext *avctx = opaque;
1224  VAAPIEncodeContext *ctx = avctx->priv_data;
1225  VABufferID buffer_id;
1226 
1227  buffer_id = (VABufferID)(uintptr_t)data;
1228 
1229  vaDestroyBuffer(ctx->hwctx->display, buffer_id);
1230 
1231  av_log(avctx, AV_LOG_DEBUG, "Freed output buffer %#x\n", buffer_id);
1232 }
1233 
1235  int size)
1236 {
1237  AVCodecContext *avctx = opaque;
1238  VAAPIEncodeContext *ctx = avctx->priv_data;
1239  VABufferID buffer_id;
1240  VAStatus vas;
1241  AVBufferRef *ref;
1242 
1243  // The output buffer size is fixed, so it needs to be large enough
1244  // to hold the largest possible compressed frame. We assume here
1245  // that the uncompressed frame plus some header data is an upper
1246  // bound on that.
1247  vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
1248  VAEncCodedBufferType,
1249  3 * ctx->surface_width * ctx->surface_height +
1250  (1 << 16), 1, 0, &buffer_id);
1251  if (vas != VA_STATUS_SUCCESS) {
1252  av_log(avctx, AV_LOG_ERROR, "Failed to create bitstream "
1253  "output buffer: %d (%s).\n", vas, vaErrorStr(vas));
1254  return NULL;
1255  }
1256 
1257  av_log(avctx, AV_LOG_DEBUG, "Allocated output buffer %#x\n", buffer_id);
1258 
1259  ref = av_buffer_create((uint8_t*)(uintptr_t)buffer_id,
1260  sizeof(buffer_id),
1262  avctx, AV_BUFFER_FLAG_READONLY);
1263  if (!ref) {
1264  vaDestroyBuffer(ctx->hwctx->display, buffer_id);
1265  return NULL;
1266  }
1267 
1268  return ref;
1269 }
1270 
1272 {
1273  VAAPIEncodeContext *ctx = avctx->priv_data;
1274  AVVAAPIHWConfig *hwconfig = NULL;
1275  AVHWFramesConstraints *constraints = NULL;
1276  enum AVPixelFormat recon_format;
1277  int err, i;
1278 
1279  hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
1280  if (!hwconfig) {
1281  err = AVERROR(ENOMEM);
1282  goto fail;
1283  }
1284  hwconfig->config_id = ctx->va_config;
1285 
1287  hwconfig);
1288  if (!constraints) {
1289  err = AVERROR(ENOMEM);
1290  goto fail;
1291  }
1292 
1293  // Probably we can use the input surface format as the surface format
1294  // of the reconstructed frames. If not, we just pick the first (only?)
1295  // format in the valid list and hope that it all works.
1296  recon_format = AV_PIX_FMT_NONE;
1297  if (constraints->valid_sw_formats) {
1298  for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
1299  if (ctx->input_frames->sw_format ==
1300  constraints->valid_sw_formats[i]) {
1301  recon_format = ctx->input_frames->sw_format;
1302  break;
1303  }
1304  }
1305  if (recon_format == AV_PIX_FMT_NONE) {
1306  // No match. Just use the first in the supported list and
1307  // hope for the best.
1308  recon_format = constraints->valid_sw_formats[0];
1309  }
1310  } else {
1311  // No idea what to use; copy input format.
1312  recon_format = ctx->input_frames->sw_format;
1313  }
1314  av_log(avctx, AV_LOG_DEBUG, "Using %s as format of "
1315  "reconstructed frames.\n", av_get_pix_fmt_name(recon_format));
1316 
1317  if (ctx->surface_width < constraints->min_width ||
1318  ctx->surface_height < constraints->min_height ||
1319  ctx->surface_width > constraints->max_width ||
1320  ctx->surface_height > constraints->max_height) {
1321  av_log(avctx, AV_LOG_ERROR, "Hardware does not support encoding at "
1322  "size %dx%d (constraints: width %d-%d height %d-%d).\n",
1323  ctx->surface_width, ctx->surface_height,
1324  constraints->min_width, constraints->max_width,
1325  constraints->min_height, constraints->max_height);
1326  err = AVERROR(EINVAL);
1327  goto fail;
1328  }
1329 
1330  av_freep(&hwconfig);
1331  av_hwframe_constraints_free(&constraints);
1332 
1334  if (!ctx->recon_frames_ref) {
1335  err = AVERROR(ENOMEM);
1336  goto fail;
1337  }
1339 
1341  ctx->recon_frames->sw_format = recon_format;
1342  ctx->recon_frames->width = ctx->surface_width;
1343  ctx->recon_frames->height = ctx->surface_height;
1344  // At most three IDR/I/P frames and two runs of B frames can be in
1345  // flight at any one time.
1346  ctx->recon_frames->initial_pool_size = 3 + 2 * avctx->max_b_frames;
1347 
1349  if (err < 0) {
1350  av_log(avctx, AV_LOG_ERROR, "Failed to initialise reconstructed "
1351  "frame context: %d.\n", err);
1352  goto fail;
1353  }
1354 
1355  err = 0;
1356  fail:
1357  av_freep(&hwconfig);
1358  av_hwframe_constraints_free(&constraints);
1359  return err;
1360 }
1361 
1363 {
1364  VAAPIEncodeContext *ctx = avctx->priv_data;
1365  AVVAAPIFramesContext *recon_hwctx = NULL;
1366  VAStatus vas;
1367  int err;
1368 
1369  if (!avctx->hw_frames_ctx) {
1370  av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
1371  "required to associate the encoding device.\n");
1372  return AVERROR(EINVAL);
1373  }
1374 
1375  ctx->codec_options = ctx->codec_options_data;
1376 
1377  ctx->va_config = VA_INVALID_ID;
1378  ctx->va_context = VA_INVALID_ID;
1379 
1380  ctx->priv_data = av_mallocz(ctx->codec->priv_data_size);
1381  if (!ctx->priv_data) {
1382  err = AVERROR(ENOMEM);
1383  goto fail;
1384  }
1385 
1387  if (!ctx->input_frames_ref) {
1388  err = AVERROR(ENOMEM);
1389  goto fail;
1390  }
1392 
1394  if (!ctx->device_ref) {
1395  err = AVERROR(ENOMEM);
1396  goto fail;
1397  }
1398  ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
1399  ctx->hwctx = ctx->device->hwctx;
1400 
1401  err = vaapi_encode_config_attributes(avctx);
1402  if (err < 0)
1403  goto fail;
1404 
1405  vas = vaCreateConfig(ctx->hwctx->display,
1406  ctx->va_profile, ctx->va_entrypoint,
1408  &ctx->va_config);
1409  if (vas != VA_STATUS_SUCCESS) {
1410  av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1411  "configuration: %d (%s).\n", vas, vaErrorStr(vas));
1412  err = AVERROR(EIO);
1413  goto fail;
1414  }
1415 
1416  err = vaapi_encode_create_recon_frames(avctx);
1417  if (err < 0)
1418  goto fail;
1419 
1420  recon_hwctx = ctx->recon_frames->hwctx;
1421  vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
1422  ctx->surface_width, ctx->surface_height,
1423  VA_PROGRESSIVE,
1424  recon_hwctx->surface_ids,
1425  recon_hwctx->nb_surfaces,
1426  &ctx->va_context);
1427  if (vas != VA_STATUS_SUCCESS) {
1428  av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1429  "context: %d (%s).\n", vas, vaErrorStr(vas));
1430  err = AVERROR(EIO);
1431  goto fail;
1432  }
1433 
1434  ctx->output_buffer_pool =
1435  av_buffer_pool_init2(sizeof(VABufferID), avctx,
1437  if (!ctx->output_buffer_pool) {
1438  err = AVERROR(ENOMEM);
1439  goto fail;
1440  }
1441 
1442  if (ctx->va_rc_mode & ~VA_RC_CQP) {
1443  err = vaapi_encode_init_rate_control(avctx);
1444  if (err < 0)
1445  goto fail;
1446  }
1447 
1448  if (ctx->codec->configure) {
1449  err = ctx->codec->configure(avctx);
1450  if (err < 0)
1451  goto fail;
1452  }
1453 
1454  if (avctx->compression_level >= 0) {
1455 #if VA_CHECK_VERSION(0, 36, 0)
1456  VAConfigAttrib attr = { VAConfigAttribEncQualityRange };
1457 
1458  vas = vaGetConfigAttributes(ctx->hwctx->display,
1459  ctx->va_profile,
1460  ctx->va_entrypoint,
1461  &attr, 1);
1462  if (vas != VA_STATUS_SUCCESS) {
1463  av_log(avctx, AV_LOG_WARNING, "Failed to query quality "
1464  "attribute: will use default compression level.\n");
1465  } else {
1466  if (avctx->compression_level > attr.value) {
1467  av_log(avctx, AV_LOG_WARNING, "Invalid compression "
1468  "level: valid range is 0-%d, using %d.\n",
1469  attr.value, attr.value);
1470  avctx->compression_level = attr.value;
1471  }
1472 
1473  ctx->quality_params.misc.type =
1474  VAEncMiscParameterTypeQualityLevel;
1475  ctx->quality_params.quality.quality_level =
1476  avctx->compression_level;
1477 
1478  ctx->global_params[ctx->nb_global_params] =
1479  &ctx->quality_params.misc;
1480  ctx->global_params_size[ctx->nb_global_params++] =
1481  sizeof(ctx->quality_params);
1482  }
1483 #else
1484  av_log(avctx, AV_LOG_WARNING, "The encode compression level "
1485  "option is not supported with this VAAPI version.\n");
1486 #endif
1487  }
1488 
1489  ctx->input_order = 0;
1490  ctx->output_delay = avctx->max_b_frames;
1491  ctx->decode_delay = 1;
1492  ctx->output_order = - ctx->output_delay - 1;
1493 
1494  // Currently we never generate I frames, only IDR.
1495  ctx->p_per_i = INT_MAX;
1496  ctx->b_per_p = avctx->max_b_frames;
1497 
1498  if (ctx->codec->sequence_params_size > 0) {
1499  ctx->codec_sequence_params =
1501  if (!ctx->codec_sequence_params) {
1502  err = AVERROR(ENOMEM);
1503  goto fail;
1504  }
1505  }
1506  if (ctx->codec->picture_params_size > 0) {
1507  ctx->codec_picture_params =
1509  if (!ctx->codec_picture_params) {
1510  err = AVERROR(ENOMEM);
1511  goto fail;
1512  }
1513  }
1514 
1515  if (ctx->codec->init_sequence_params) {
1516  err = ctx->codec->init_sequence_params(avctx);
1517  if (err < 0) {
1518  av_log(avctx, AV_LOG_ERROR, "Codec sequence initialisation "
1519  "failed: %d.\n", err);
1520  goto fail;
1521  }
1522  }
1523 
1524  // This should be configurable somehow. (Needs testing on a machine
1525  // where it actually overlaps properly, though.)
1526  ctx->issue_mode = ISSUE_MODE_MAXIMISE_THROUGHPUT;
1527 
1528  if (ctx->va_packed_headers & VA_ENC_PACKED_HEADER_SEQUENCE &&
1529  ctx->codec->write_sequence_header) {
1531  size_t bit_len = 8 * sizeof(data);
1532 
1533  err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
1534  if (err < 0) {
1535  av_log(avctx, AV_LOG_ERROR, "Failed to write sequence header "
1536  "for extradata: %d.\n", err);
1537  goto fail;
1538  } else {
1539  avctx->extradata_size = (bit_len + 7) / 8;
1540  avctx->extradata = av_mallocz(avctx->extradata_size +
1542  if (!avctx->extradata) {
1543  err = AVERROR(ENOMEM);
1544  goto fail;
1545  }
1546  memcpy(avctx->extradata, data, avctx->extradata_size);
1547  }
1548  }
1549 
1550  return 0;
1551 
1552 fail:
1553  ff_vaapi_encode_close(avctx);
1554  return err;
1555 }
1556 
1558 {
1559  VAAPIEncodeContext *ctx = avctx->priv_data;
1560  VAAPIEncodePicture *pic, *next;
1561 
1562  for (pic = ctx->pic_start; pic; pic = next) {
1563  next = pic->next;
1564  vaapi_encode_free(avctx, pic);
1565  }
1566 
1568 
1569  if (ctx->va_context != VA_INVALID_ID) {
1570  vaDestroyContext(ctx->hwctx->display, ctx->va_context);
1571  ctx->va_context = VA_INVALID_ID;
1572  }
1573 
1574  if (ctx->va_config != VA_INVALID_ID) {
1575  vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
1576  ctx->va_config = VA_INVALID_ID;
1577  }
1578 
1581 
1584  av_buffer_unref(&ctx->device_ref);
1585 
1586  av_freep(&ctx->priv_data);
1587 
1588  return 0;
1589 }
This struct aggregates all the (hardware/vendor-specific) "high-level" state, i.e.
Definition: hwcontext.h:60
#define NULL
Definition: coverity.c:32
AVRational framerate
Definition: avcodec.h:3040
The driver does not destroy parameter buffers when they are used by vaRenderPicture().
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:218
VAEntrypoint va_entrypoint
Definition: vaapi_encode.h:98
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
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:1568
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:1777
int rc_initial_buffer_occupancy
Number of bits which should be loaded into the rc buffer before decoding starts.
Definition: avcodec.h:2419
int num
Numerator.
Definition: rational.h:59
int size
Definition: avcodec.h:1431
size_t priv_data_size
Definition: vaapi_encode.h:218
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:228
static int vaapi_encode_make_packed_header(AVCodecContext *avctx, VAAPIEncodePicture *pic, int type, char *data, size_t bit_len)
Definition: vaapi_encode.c:32
static const char *const picture_type_name[]
Definition: vaapi_encode.c:30
static av_cold int vaapi_encode_config_attributes(AVCodecContext *avctx)
Definition: vaapi_encode.c:963
void * av_hwdevice_hwconfig_alloc(AVBufferRef *ref)
Allocate a HW-specific configuration structure for a given HW device.
Definition: hwcontext.c:526
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:208
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
static int vaapi_encode_clear_old(AVCodecContext *avctx)
Definition: vaapi_encode.c:821
static int vaapi_encode_wait(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:106
int max_width
The maximum size of frames in this hw_frames_ctx.
Definition: hwcontext.h:457
static int vaapi_encode_discard(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:514
static int vaapi_encode_make_param_buffer(AVCodecContext *avctx, VAAPIEncodePicture *pic, int type, char *data, size_t len)
Definition: vaapi_encode.c:78
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1640
void av_hwframe_constraints_free(AVHWFramesConstraints **constraints)
Free an AVHWFrameConstraints structure.
Definition: hwcontext.c:562
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
static VAAPIEncodePicture * vaapi_encode_alloc(void)
Definition: vaapi_encode.c:531
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:189
static int vaapi_encode_issue(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:137
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:441
static AVBufferRef * vaapi_encode_alloc_output_buffer(void *opaque, int size)
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
Definition: frame.h:311
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1618
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:91
VABufferID * param_buffers
Definition: vaapi_encode.h:74
uint8_t * data
Definition: avcodec.h:1430
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
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:1462
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:276
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
VAAPI hardware pipeline configuration details.
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:202
#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:329
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:465
#define fail()
Definition: checkasm.h:117
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:1436
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2376
VAAPIEncodeSlice * slices
Definition: vaapi_encode.h:86
int initial_pool_size
Initial size of the frame pool.
Definition: hwcontext.h:198
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:301
AVBufferRef * hw_frames_ctx
A reference to the AVHWFramesContext describing the input (for encoding) or output (decoding) frames...
Definition: avcodec.h:3197
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
av_cold int ff_vaapi_encode_init(AVCodecContext *avctx)
AVFormatContext * ctx
Definition: movenc.c:48
unsigned int va_rt_format
Definition: vaapi_encode.h:100
struct VAAPIEncodePicture * next
Definition: vaapi_encode.h:56
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)
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:450
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:432
int compression_level
Definition: avcodec.h:1590
VAAPIEncodePicture * pic_start
Definition: vaapi_encode.h:175
main external API structure.
Definition: avcodec.h:1518
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:537
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:2355
void * hwctx
The format-specific data, allocated and freed automatically along with this context.
Definition: hwcontext.h:161
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:1619
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:123
static int vaapi_encode_step(AVCodecContext *avctx, VAAPIEncodePicture *target)
Definition: vaapi_encode.c:578
AVBufferRef * recon_frames_ref
Definition: vaapi_encode.h:135
static int vaapi_encode_truncate_gop(AVCodecContext *avctx)
Definition: vaapi_encode.c:760
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:232
AVBufferRef * device_ref
A reference to the parent AVHWDeviceContext.
Definition: hwcontext.h:140
size_t global_params_size[MAX_GLOBAL_PARAMS]
Definition: vaapi_encode.h:144
int gop_size
the number of pictures in a group of pictures, or 0 for intra_only
Definition: avcodec.h:1712
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
common internal and external API header
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:243
static int vaapi_encode_get_next(AVCodecContext *avctx, VAAPIEncodePicture **pic_out)
Definition: vaapi_encode.c:655
AVBufferRef * av_buffer_ref(AVBufferRef *buf)
Create a new reference to an AVBuffer.
Definition: buffer.c:93
int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *input_image, int *got_packet)
Definition: vaapi_encode.c:853
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:773
void * priv_data
Definition: avcodec.h:1545
static av_cold int vaapi_encode_create_recon_frames(AVCodecContext *avctx)
#define av_free(p)
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:444
void * codec_slice_params
Definition: vaapi_encode.h:52
AVFrame * recon_image
Definition: vaapi_encode.h:70
static int vaapi_encode_free(AVCodecContext *avctx, VAAPIEncodePicture *pic)
Definition: vaapi_encode.c:546
int(* init_slice_params)(AVCodecContext *avctx, VAAPIEncodePicture *pic, VAAPIEncodeSlice *slice)
Definition: vaapi_encode.h:235
VAConfigID config_id
ID of a VAAPI pipeline configuration.
int(* init_sequence_params)(AVCodecContext *avctx)
Definition: vaapi_encode.h:232
static void vaapi_encode_free_output_buffer(void *opaque, uint8_t *data)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
Definition: avcodec.h:1429
struct VAAPIEncodeContext::@145 hrd_params
int height
Definition: frame.h:276
#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)
static av_cold int vaapi_encode_init_rate_control(AVCodecContext *avctx)
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:2300
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:221
struct VAAPIEncodeContext::@146 fr_params
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1407
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
Definition: avcodec.h:1423
av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
GLuint buffer
Definition: opengl_enc.c:102
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2391
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
static int vaapi_encode_output(AVCodecContext *avctx, VAAPIEncodePicture *pic, AVPacket *pkt)
Definition: vaapi_encode.c:453
AVVAAPIDeviceContext * hwctx
Definition: vaapi_encode.h:128
static uint8_t tmp[11]
Definition: aes_ctr.c:26