cosmetics: Fix spelling mistakes
[libav.git] / libavcodec / vaapi_encode.c
1 /*
2 * This file is part of Libav.
3 *
4 * Libav 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 * Libav 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 Libav; 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/log.h"
24 #include "libavutil/pixdesc.h"
25
26 #include "vaapi_encode.h"
27 #include "avcodec.h"
28
29 static const char *picture_type_name[] = { "IDR", "I", "P", "B" };
30
31 static int vaapi_encode_make_packed_header(AVCodecContext *avctx,
32 VAAPIEncodePicture *pic,
33 int type, char *data, size_t bit_len)
34 {
35 VAAPIEncodeContext *ctx = avctx->priv_data;
36 VAStatus vas;
37 VABufferID param_buffer, data_buffer;
38 VAEncPackedHeaderParameterBuffer params = {
39 .type = type,
40 .bit_length = bit_len,
41 .has_emulation_bytes = 1,
42 };
43
44 av_assert0(pic->nb_param_buffers + 2 <= MAX_PARAM_BUFFERS);
45
46 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
47 VAEncPackedHeaderParameterBufferType,
48 sizeof(params), 1, &params, &param_buffer);
49 if (vas != VA_STATUS_SUCCESS) {
50 av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
51 "for packed header (type %d): %d (%s).\n",
52 type, vas, vaErrorStr(vas));
53 return AVERROR(EIO);
54 }
55 pic->param_buffers[pic->nb_param_buffers++] = param_buffer;
56
57 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
58 VAEncPackedHeaderDataBufferType,
59 (bit_len + 7) / 8, 1, data, &data_buffer);
60 if (vas != VA_STATUS_SUCCESS) {
61 av_log(avctx, AV_LOG_ERROR, "Failed to create data buffer "
62 "for packed header (type %d): %d (%s).\n",
63 type, vas, vaErrorStr(vas));
64 return AVERROR(EIO);
65 }
66 pic->param_buffers[pic->nb_param_buffers++] = data_buffer;
67
68 av_log(avctx, AV_LOG_DEBUG, "Packed header buffer (%d) is %#x/%#x "
69 "(%zu bits).\n", type, param_buffer, data_buffer, bit_len);
70 return 0;
71 }
72
73 static int vaapi_encode_make_param_buffer(AVCodecContext *avctx,
74 VAAPIEncodePicture *pic,
75 int type, char *data, size_t len)
76 {
77 VAAPIEncodeContext *ctx = avctx->priv_data;
78 VAStatus vas;
79 VABufferID buffer;
80
81 av_assert0(pic->nb_param_buffers + 1 <= MAX_PARAM_BUFFERS);
82
83 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
84 type, len, 1, data, &buffer);
85 if (vas != VA_STATUS_SUCCESS) {
86 av_log(avctx, AV_LOG_ERROR, "Failed to create parameter buffer "
87 "(type %d): %d (%s).\n", type, vas, vaErrorStr(vas));
88 return AVERROR(EIO);
89 }
90 pic->param_buffers[pic->nb_param_buffers++] = buffer;
91
92 av_log(avctx, AV_LOG_DEBUG, "Param buffer (%d) is %#x.\n",
93 type, buffer);
94 return 0;
95 }
96
97 static int vaapi_encode_wait(AVCodecContext *avctx,
98 VAAPIEncodePicture *pic)
99 {
100 VAAPIEncodeContext *ctx = avctx->priv_data;
101 VAStatus vas;
102
103 av_assert0(pic->encode_issued);
104
105 if (pic->encode_complete) {
106 // Already waited for this picture.
107 return 0;
108 }
109
110 av_log(avctx, AV_LOG_DEBUG, "Sync to pic %"PRId64"/%"PRId64" "
111 "(recon surface %#x).\n", pic->display_order,
112 pic->encode_order, pic->recon_surface);
113
114 vas = vaSyncSurface(ctx->hwctx->display, pic->recon_surface);
115 if (vas != VA_STATUS_SUCCESS) {
116 av_log(avctx, AV_LOG_ERROR, "Failed to sync to picture completion: "
117 "%d (%s).\n", vas, vaErrorStr(vas));
118 return AVERROR(EIO);
119 }
120
121 // Input is definitely finished with now.
122 av_frame_free(&pic->input_image);
123
124 pic->encode_complete = 1;
125 return 0;
126 }
127
128 static int vaapi_encode_issue(AVCodecContext *avctx,
129 VAAPIEncodePicture *pic)
130 {
131 VAAPIEncodeContext *ctx = avctx->priv_data;
132 VAAPIEncodeSlice *slice;
133 VAStatus vas;
134 int err, i;
135 char data[MAX_PARAM_BUFFER_SIZE];
136 size_t bit_len;
137
138 av_log(avctx, AV_LOG_DEBUG, "Issuing encode for pic %"PRId64"/%"PRId64" "
139 "as type %s.\n", pic->display_order, pic->encode_order,
140 picture_type_name[pic->type]);
141 if (pic->nb_refs == 0) {
142 av_log(avctx, AV_LOG_DEBUG, "No reference pictures.\n");
143 } else {
144 av_log(avctx, AV_LOG_DEBUG, "Refers to:");
145 for (i = 0; i < pic->nb_refs; i++) {
146 av_log(avctx, AV_LOG_DEBUG, " %"PRId64"/%"PRId64,
147 pic->refs[i]->display_order, pic->refs[i]->encode_order);
148 }
149 av_log(avctx, AV_LOG_DEBUG, ".\n");
150 }
151
152 av_assert0(pic->input_available && !pic->encode_issued);
153 for (i = 0; i < pic->nb_refs; i++) {
154 av_assert0(pic->refs[i]);
155 // If we are serialised then the references must have already
156 // completed. If not, they must have been issued but need not
157 // have completed yet.
158 if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
159 av_assert0(pic->refs[i]->encode_complete);
160 else
161 av_assert0(pic->refs[i]->encode_issued);
162 }
163
164 av_log(avctx, AV_LOG_DEBUG, "Input surface is %#x.\n", pic->input_surface);
165
166 pic->recon_image = av_frame_alloc();
167 if (!pic->recon_image) {
168 err = AVERROR(ENOMEM);
169 goto fail;
170 }
171
172 err = av_hwframe_get_buffer(ctx->recon_frames_ref, pic->recon_image, 0);
173 if (err < 0) {
174 err = AVERROR(ENOMEM);
175 goto fail;
176 }
177 pic->recon_surface = (VASurfaceID)(uintptr_t)pic->recon_image->data[3];
178 av_log(avctx, AV_LOG_DEBUG, "Recon surface is %#x.\n", pic->recon_surface);
179
180 vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
181 VAEncCodedBufferType,
182 MAX_OUTPUT_BUFFER_SIZE, 1, 0,
183 &pic->output_buffer);
184 if (vas != VA_STATUS_SUCCESS) {
185 av_log(avctx, AV_LOG_ERROR, "Failed to create bitstream "
186 "output buffer: %d (%s).\n", vas, vaErrorStr(vas));
187 err = AVERROR(ENOMEM);
188 goto fail;
189 }
190 av_log(avctx, AV_LOG_DEBUG, "Output buffer is %#x.\n",
191 pic->output_buffer);
192
193 if (ctx->codec->picture_params_size > 0) {
194 pic->codec_picture_params = av_malloc(ctx->codec->picture_params_size);
195 if (!pic->codec_picture_params)
196 goto fail;
197 memcpy(pic->codec_picture_params, ctx->codec_picture_params,
198 ctx->codec->picture_params_size);
199 } else {
200 av_assert0(!ctx->codec_picture_params);
201 }
202
203 pic->nb_param_buffers = 0;
204
205 if (pic->encode_order == 0) {
206 // Global parameter buffers are set on the first picture only.
207
208 for (i = 0; i < ctx->nb_global_params; i++) {
209 err = vaapi_encode_make_param_buffer(avctx, pic,
210 VAEncMiscParameterBufferType,
211 (char*)ctx->global_params[i],
212 ctx->global_params_size[i]);
213 if (err < 0)
214 goto fail;
215 }
216 }
217
218 if (pic->type == PICTURE_TYPE_IDR && ctx->codec->init_sequence_params) {
219 err = vaapi_encode_make_param_buffer(avctx, pic,
220 VAEncSequenceParameterBufferType,
221 ctx->codec_sequence_params,
222 ctx->codec->sequence_params_size);
223 if (err < 0)
224 goto fail;
225 }
226
227 if (ctx->codec->init_picture_params) {
228 err = ctx->codec->init_picture_params(avctx, pic);
229 if (err < 0) {
230 av_log(avctx, AV_LOG_ERROR, "Failed to initialise picture "
231 "parameters: %d.\n", err);
232 goto fail;
233 }
234 err = vaapi_encode_make_param_buffer(avctx, pic,
235 VAEncPictureParameterBufferType,
236 pic->codec_picture_params,
237 ctx->codec->picture_params_size);
238 if (err < 0)
239 goto fail;
240 }
241
242 if (pic->type == PICTURE_TYPE_IDR) {
243 if (ctx->codec->write_sequence_header) {
244 bit_len = 8 * sizeof(data);
245 err = ctx->codec->write_sequence_header(avctx, data, &bit_len);
246 if (err < 0) {
247 av_log(avctx, AV_LOG_ERROR, "Failed to write per-sequence "
248 "header: %d.\n", err);
249 goto fail;
250 }
251 err = vaapi_encode_make_packed_header(avctx, pic,
252 ctx->codec->sequence_header_type,
253 data, bit_len);
254 if (err < 0)
255 goto fail;
256 }
257 }
258
259 if (ctx->codec->write_picture_header) {
260 bit_len = 8 * sizeof(data);
261 err = ctx->codec->write_picture_header(avctx, pic, data, &bit_len);
262 if (err < 0) {
263 av_log(avctx, AV_LOG_ERROR, "Failed to write per-picture "
264 "header: %d.\n", err);
265 goto fail;
266 }
267 err = vaapi_encode_make_packed_header(avctx, pic,
268 ctx->codec->picture_header_type,
269 data, bit_len);
270 if (err < 0)
271 goto fail;
272 }
273
274 if (ctx->codec->write_extra_buffer) {
275 for (i = 0;; i++) {
276 size_t len = sizeof(data);
277 int type;
278 err = ctx->codec->write_extra_buffer(avctx, pic, i, &type,
279 data, &len);
280 if (err == AVERROR_EOF)
281 break;
282 if (err < 0) {
283 av_log(avctx, AV_LOG_ERROR, "Failed to write extra "
284 "buffer %d: %d.\n", i, err);
285 goto fail;
286 }
287
288 err = vaapi_encode_make_param_buffer(avctx, pic, type,
289 data, len);
290 if (err < 0)
291 goto fail;
292 }
293 }
294
295 av_assert0(pic->nb_slices <= MAX_PICTURE_SLICES);
296 for (i = 0; i < pic->nb_slices; i++) {
297 slice = av_mallocz(sizeof(*slice));
298 if (!slice) {
299 err = AVERROR(ENOMEM);
300 goto fail;
301 }
302 pic->slices[i] = slice;
303
304 if (ctx->codec->slice_params_size > 0) {
305 slice->codec_slice_params = av_mallocz(ctx->codec->slice_params_size);
306 if (!slice->codec_slice_params) {
307 err = AVERROR(ENOMEM);
308 goto fail;
309 }
310 }
311
312 if (ctx->codec->init_slice_params) {
313 err = ctx->codec->init_slice_params(avctx, pic, slice);
314 if (err < 0) {
315 av_log(avctx, AV_LOG_ERROR, "Failed to initalise slice "
316 "parameters: %d.\n", err);
317 goto fail;
318 }
319 }
320
321 if (ctx->codec->write_slice_header) {
322 bit_len = 8 * sizeof(data);
323 err = ctx->codec->write_slice_header(avctx, pic, slice,
324 data, &bit_len);
325 if (err < 0) {
326 av_log(avctx, AV_LOG_ERROR, "Failed to write per-slice "
327 "header: %d.\n", err);
328 goto fail;
329 }
330 err = vaapi_encode_make_packed_header(avctx, pic,
331 ctx->codec->slice_header_type,
332 data, bit_len);
333 if (err < 0)
334 goto fail;
335 }
336
337 if (ctx->codec->init_slice_params) {
338 err = vaapi_encode_make_param_buffer(avctx, pic,
339 VAEncSliceParameterBufferType,
340 slice->codec_slice_params,
341 ctx->codec->slice_params_size);
342 if (err < 0)
343 goto fail;
344 }
345 }
346
347 vas = vaBeginPicture(ctx->hwctx->display, ctx->va_context,
348 pic->input_surface);
349 if (vas != VA_STATUS_SUCCESS) {
350 av_log(avctx, AV_LOG_ERROR, "Failed to begin picture encode issue: "
351 "%d (%s).\n", vas, vaErrorStr(vas));
352 err = AVERROR(EIO);
353 goto fail_with_picture;
354 }
355
356 vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context,
357 pic->param_buffers, pic->nb_param_buffers);
358 if (vas != VA_STATUS_SUCCESS) {
359 av_log(avctx, AV_LOG_ERROR, "Failed to upload encode parameters: "
360 "%d (%s).\n", vas, vaErrorStr(vas));
361 err = AVERROR(EIO);
362 goto fail_with_picture;
363 }
364
365 vas = vaEndPicture(ctx->hwctx->display, ctx->va_context);
366 if (vas != VA_STATUS_SUCCESS) {
367 av_log(avctx, AV_LOG_ERROR, "Failed to end picture encode issue: "
368 "%d (%s).\n", vas, vaErrorStr(vas));
369 err = AVERROR(EIO);
370 goto fail_at_end;
371 }
372
373 pic->encode_issued = 1;
374
375 if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING)
376 return vaapi_encode_wait(avctx, pic);
377 else
378 return 0;
379
380 fail_with_picture:
381 vaEndPicture(ctx->hwctx->display, ctx->va_context);
382 fail:
383 for(i = 0; i < pic->nb_param_buffers; i++)
384 vaDestroyBuffer(ctx->hwctx->display, pic->param_buffers[i]);
385 fail_at_end:
386 av_freep(&pic->codec_picture_params);
387 av_frame_free(&pic->recon_image);
388 return err;
389 }
390
391 static int vaapi_encode_output(AVCodecContext *avctx,
392 VAAPIEncodePicture *pic, AVPacket *pkt)
393 {
394 VAAPIEncodeContext *ctx = avctx->priv_data;
395 VACodedBufferSegment *buf_list, *buf;
396 VAStatus vas;
397 int err;
398
399 err = vaapi_encode_wait(avctx, pic);
400 if (err < 0)
401 return err;
402
403 buf_list = NULL;
404 vas = vaMapBuffer(ctx->hwctx->display, pic->output_buffer,
405 (void**)&buf_list);
406 if (vas != VA_STATUS_SUCCESS) {
407 av_log(avctx, AV_LOG_ERROR, "Failed to map output buffers: "
408 "%d (%s).\n", vas, vaErrorStr(vas));
409 err = AVERROR(EIO);
410 goto fail;
411 }
412
413 for (buf = buf_list; buf; buf = buf->next) {
414 av_log(avctx, AV_LOG_DEBUG, "Output buffer: %u bytes "
415 "(status %08x).\n", buf->size, buf->status);
416
417 err = av_new_packet(pkt, buf->size);
418 if (err < 0)
419 goto fail;
420
421 memcpy(pkt->data, buf->buf, buf->size);
422 }
423
424 if (pic->type == PICTURE_TYPE_IDR)
425 pkt->flags |= AV_PKT_FLAG_KEY;
426
427 pkt->pts = pic->pts;
428
429 vas = vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
430 if (vas != VA_STATUS_SUCCESS) {
431 av_log(avctx, AV_LOG_ERROR, "Failed to unmap output buffers: "
432 "%d (%s).\n", vas, vaErrorStr(vas));
433 err = AVERROR(EIO);
434 goto fail;
435 }
436
437 vaDestroyBuffer(ctx->hwctx->display, pic->output_buffer);
438 pic->output_buffer = VA_INVALID_ID;
439
440 av_log(avctx, AV_LOG_DEBUG, "Output read for pic %"PRId64"/%"PRId64".\n",
441 pic->display_order, pic->encode_order);
442 return 0;
443
444 fail:
445 if (pic->output_buffer != VA_INVALID_ID) {
446 vaUnmapBuffer(ctx->hwctx->display, pic->output_buffer);
447 vaDestroyBuffer(ctx->hwctx->display, pic->output_buffer);
448 pic->output_buffer = VA_INVALID_ID;
449 }
450 return err;
451 }
452
453 static int vaapi_encode_discard(AVCodecContext *avctx,
454 VAAPIEncodePicture *pic)
455 {
456 VAAPIEncodeContext *ctx = avctx->priv_data;
457
458 vaapi_encode_wait(avctx, pic);
459
460 if (pic->output_buffer != VA_INVALID_ID) {
461 av_log(avctx, AV_LOG_DEBUG, "Discard output for pic "
462 "%"PRId64"/%"PRId64".\n",
463 pic->display_order, pic->encode_order);
464
465 vaDestroyBuffer(ctx->hwctx->display, pic->output_buffer);
466 pic->output_buffer = VA_INVALID_ID;
467 }
468
469 return 0;
470 }
471
472 static VAAPIEncodePicture *vaapi_encode_alloc(void)
473 {
474 VAAPIEncodePicture *pic;
475
476 pic = av_mallocz(sizeof(*pic));
477 if (!pic)
478 return NULL;
479
480 pic->input_surface = VA_INVALID_ID;
481 pic->recon_surface = VA_INVALID_ID;
482 pic->output_buffer = VA_INVALID_ID;
483
484 return pic;
485 }
486
487 static int vaapi_encode_free(AVCodecContext *avctx,
488 VAAPIEncodePicture *pic)
489 {
490 int i;
491
492 if (pic->encode_issued)
493 vaapi_encode_discard(avctx, pic);
494
495 for (i = 0; i < pic->nb_slices; i++) {
496 av_freep(&pic->slices[i]->priv_data);
497 av_freep(&pic->slices[i]->codec_slice_params);
498 av_freep(&pic->slices[i]);
499 }
500 av_freep(&pic->codec_picture_params);
501
502 av_frame_free(&pic->input_image);
503 av_frame_free(&pic->recon_image);
504
505 // Output buffer should already be destroyed.
506 av_assert0(pic->output_buffer == VA_INVALID_ID);
507
508 av_freep(&pic->priv_data);
509 av_freep(&pic->codec_picture_params);
510
511 av_free(pic);
512
513 return 0;
514 }
515
516 static int vaapi_encode_step(AVCodecContext *avctx,
517 VAAPIEncodePicture *target)
518 {
519 VAAPIEncodeContext *ctx = avctx->priv_data;
520 VAAPIEncodePicture *pic;
521 int i, err;
522
523 if (ctx->issue_mode == ISSUE_MODE_SERIALISE_EVERYTHING ||
524 ctx->issue_mode == ISSUE_MODE_MINIMISE_LATENCY) {
525 // These two modes are equivalent, except that we wait for
526 // immediate completion on each operation if serialised.
527
528 if (!target) {
529 // No target, nothing to do yet.
530 return 0;
531 }
532
533 if (target->encode_complete) {
534 // Already done.
535 return 0;
536 }
537
538 pic = target;
539 for (i = 0; i < pic->nb_refs; i++) {
540 if (!pic->refs[i]->encode_complete) {
541 err = vaapi_encode_step(avctx, pic->refs[i]);
542 if (err < 0)
543 return err;
544 }
545 }
546
547 err = vaapi_encode_issue(avctx, pic);
548 if (err < 0)
549 return err;
550
551 } else if (ctx->issue_mode == ISSUE_MODE_MAXIMISE_THROUGHPUT) {
552 int activity;
553
554 do {
555 activity = 0;
556 for (pic = ctx->pic_start; pic; pic = pic->next) {
557 if (!pic->input_available || pic->encode_issued)
558 continue;
559 for (i = 0; i < pic->nb_refs; i++) {
560 if (!pic->refs[i]->encode_issued)
561 break;
562 }
563 if (i < pic->nb_refs)
564 continue;
565 err = vaapi_encode_issue(avctx, pic);
566 if (err < 0)
567 return err;
568 activity = 1;
569 }
570 } while(activity);
571
572 if (target) {
573 av_assert0(target->encode_issued && "broken dependencies?");
574 }
575
576 } else {
577 av_assert0(0);
578 }
579
580 return 0;
581 }
582
583 static int vaapi_encode_get_next(AVCodecContext *avctx,
584 VAAPIEncodePicture **pic_out)
585 {
586 VAAPIEncodeContext *ctx = avctx->priv_data;
587 VAAPIEncodePicture *start, *end, *pic;
588 int i;
589
590 for (pic = ctx->pic_start; pic; pic = pic->next) {
591 if (pic->next)
592 av_assert0(pic->display_order + 1 == pic->next->display_order);
593 if (pic->display_order == ctx->input_order) {
594 *pic_out = pic;
595 return 0;
596 }
597 }
598
599 if (ctx->input_order == 0) {
600 // First frame is always an IDR frame.
601 av_assert0(!ctx->pic_start && !ctx->pic_end);
602
603 pic = vaapi_encode_alloc();
604 if (!pic)
605 return AVERROR(ENOMEM);
606
607 pic->type = PICTURE_TYPE_IDR;
608 pic->display_order = 0;
609 pic->encode_order = 0;
610
611 ctx->pic_start = ctx->pic_end = pic;
612
613 *pic_out = pic;
614 return 0;
615 }
616
617 pic = vaapi_encode_alloc();
618 if (!pic)
619 return AVERROR(ENOMEM);
620
621 if (ctx->p_per_i == 0 || ctx->p_counter == ctx->p_per_i) {
622 if (ctx->i_per_idr == 0 || ctx->i_counter == ctx->i_per_idr) {
623 pic->type = PICTURE_TYPE_IDR;
624 ctx->i_counter = 0;
625 } else {
626 pic->type = PICTURE_TYPE_I;
627 ++ctx->i_counter;
628 }
629 ctx->p_counter = 0;
630 } else {
631 pic->type = PICTURE_TYPE_P;
632 pic->refs[0] = ctx->pic_end;
633 pic->nb_refs = 1;
634 ++ctx->p_counter;
635 }
636 start = end = pic;
637
638 if (pic->type != PICTURE_TYPE_IDR) {
639 // If that was not an IDR frame, add B-frames display-before and
640 // encode-after it.
641
642 for (i = 0; i < ctx->b_per_p; i++) {
643 pic = vaapi_encode_alloc();
644 if (!pic)
645 goto fail;
646
647 pic->type = PICTURE_TYPE_B;
648 pic->refs[0] = ctx->pic_end;
649 pic->refs[1] = end;
650 pic->nb_refs = 2;
651
652 pic->next = start;
653 pic->display_order = ctx->input_order + ctx->b_per_p - i - 1;
654 pic->encode_order = pic->display_order + 1;
655 start = pic;
656 }
657 }
658
659 for (i = 0, pic = start; pic; i++, pic = pic->next) {
660 pic->display_order = ctx->input_order + i;
661 if (end->type == PICTURE_TYPE_IDR)
662 pic->encode_order = ctx->input_order + i;
663 else if (pic == end)
664 pic->encode_order = ctx->input_order;
665 else
666 pic->encode_order = ctx->input_order + i + 1;
667 }
668
669 av_assert0(ctx->pic_end);
670 ctx->pic_end->next = start;
671 ctx->pic_end = end;
672
673 *pic_out = start;
674
675 av_log(avctx, AV_LOG_DEBUG, "Pictures:");
676 for (pic = ctx->pic_start; pic; pic = pic->next) {
677 av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
678 picture_type_name[pic->type],
679 pic->display_order, pic->encode_order);
680 }
681 av_log(avctx, AV_LOG_DEBUG, "\n");
682
683 return 0;
684
685 fail:
686 while (start) {
687 pic = start->next;
688 vaapi_encode_free(avctx, start);
689 start = pic;
690 }
691 return AVERROR(ENOMEM);
692 }
693
694 static int vaapi_encode_mangle_end(AVCodecContext *avctx)
695 {
696 VAAPIEncodeContext *ctx = avctx->priv_data;
697 VAAPIEncodePicture *pic, *last_pic, *next;
698
699 // Find the last picture we actually have input for.
700 for (pic = ctx->pic_start; pic; pic = pic->next) {
701 if (!pic->input_available)
702 break;
703 last_pic = pic;
704 }
705
706 if (pic) {
707 av_assert0(last_pic);
708
709 if (last_pic->type == PICTURE_TYPE_B) {
710 // Some fixing up is required. Change the type of this
711 // picture to P, then modify preceding B references which
712 // point beyond it to point at it instead.
713
714 last_pic->type = PICTURE_TYPE_P;
715 last_pic->encode_order = last_pic->refs[1]->encode_order;
716
717 for (pic = ctx->pic_start; pic != last_pic; pic = pic->next) {
718 if (pic->type == PICTURE_TYPE_B &&
719 pic->refs[1] == last_pic->refs[1])
720 pic->refs[1] = last_pic;
721 }
722
723 last_pic->nb_refs = 1;
724 last_pic->refs[1] = NULL;
725 } else {
726 // We can use the current structure (no references point
727 // beyond the end), but there are unused pics to discard.
728 }
729
730 // Discard all following pics, they will never be used.
731 for (pic = last_pic->next; pic; pic = next) {
732 next = pic->next;
733 vaapi_encode_free(avctx, pic);
734 }
735
736 last_pic->next = NULL;
737 ctx->pic_end = last_pic;
738
739 } else {
740 // Input is available for all pictures, so we don't need to
741 // mangle anything.
742 }
743
744 av_log(avctx, AV_LOG_DEBUG, "Pictures at end of stream:");
745 for (pic = ctx->pic_start; pic; pic = pic->next) {
746 av_log(avctx, AV_LOG_DEBUG, " %s (%"PRId64"/%"PRId64")",
747 picture_type_name[pic->type],
748 pic->display_order, pic->encode_order);
749 }
750 av_log(avctx, AV_LOG_DEBUG, "\n");
751
752 return 0;
753 }
754
755 static int vaapi_encode_clear_old(AVCodecContext *avctx)
756 {
757 VAAPIEncodeContext *ctx = avctx->priv_data;
758 VAAPIEncodePicture *pic, *old;
759 int i;
760
761 while (ctx->pic_start != ctx->pic_end) {
762 old = ctx->pic_start;
763 if (old->encode_order > ctx->output_order)
764 break;
765
766 for (pic = old->next; pic; pic = pic->next) {
767 if (pic->encode_complete)
768 continue;
769 for (i = 0; i < pic->nb_refs; i++) {
770 if (pic->refs[i] == old) {
771 // We still need this picture because it's referred to
772 // directly by a later one, so it and all following
773 // pictures have to stay.
774 return 0;
775 }
776 }
777 }
778
779 pic = ctx->pic_start;
780 ctx->pic_start = pic->next;
781 vaapi_encode_free(avctx, pic);
782 }
783
784 return 0;
785 }
786
787 int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt,
788 const AVFrame *input_image, int *got_packet)
789 {
790 VAAPIEncodeContext *ctx = avctx->priv_data;
791 VAAPIEncodePicture *pic;
792 int err;
793
794 if (input_image) {
795 av_log(avctx, AV_LOG_DEBUG, "Encode frame: %ux%u (%"PRId64").\n",
796 input_image->width, input_image->height, input_image->pts);
797
798 err = vaapi_encode_get_next(avctx, &pic);
799 if (err) {
800 av_log(avctx, AV_LOG_ERROR, "Input setup failed: %d.\n", err);
801 return err;
802 }
803
804 pic->input_image = av_frame_alloc();
805 if (!pic->input_image) {
806 err = AVERROR(ENOMEM);
807 goto fail;
808 }
809 err = av_frame_ref(pic->input_image, input_image);
810 if (err < 0)
811 goto fail;
812 pic->input_surface = (VASurfaceID)(uintptr_t)input_image->data[3];
813 pic->pts = input_image->pts;
814
815 if (ctx->input_order == 0)
816 ctx->first_pts = pic->pts;
817 if (ctx->input_order == ctx->decode_delay)
818 ctx->dts_pts_diff = pic->pts - ctx->first_pts;
819 if (ctx->output_delay > 0)
820 ctx->ts_ring[ctx->input_order % (3 * ctx->output_delay)] = pic->pts;
821
822 pic->input_available = 1;
823
824 } else {
825 if (!ctx->end_of_stream) {
826 err = vaapi_encode_mangle_end(avctx);
827 if (err < 0)
828 goto fail;
829 ctx->end_of_stream = 1;
830 }
831 }
832
833 ++ctx->input_order;
834 ++ctx->output_order;
835 av_assert0(ctx->output_order + ctx->output_delay + 1 == ctx->input_order);
836
837 for (pic = ctx->pic_start; pic; pic = pic->next)
838 if (pic->encode_order == ctx->output_order)
839 break;
840
841 // pic can be null here if we don't have a specific target in this
842 // iteration. We might still issue encodes if things can be overlapped,
843 // even though we don't intend to output anything.
844
845 err = vaapi_encode_step(avctx, pic);
846 if (err < 0) {
847 av_log(avctx, AV_LOG_ERROR, "Encode failed: %d.\n", err);
848 goto fail;
849 }
850
851 if (!pic) {
852 *got_packet = 0;
853 } else {
854 err = vaapi_encode_output(avctx, pic, pkt);
855 if (err < 0) {
856 av_log(avctx, AV_LOG_ERROR, "Output failed: %d.\n", err);
857 goto fail;
858 }
859
860 if (ctx->output_delay == 0) {
861 pkt->dts = pkt->pts;
862 } else if (ctx->output_order < ctx->decode_delay) {
863 if (ctx->ts_ring[ctx->output_order] < INT64_MIN + ctx->dts_pts_diff)
864 pkt->dts = INT64_MIN;
865 else
866 pkt->dts = ctx->ts_ring[ctx->output_order] - ctx->dts_pts_diff;
867 } else {
868 pkt->dts = ctx->ts_ring[(ctx->output_order - ctx->decode_delay) %
869 (3 * ctx->output_delay)];
870 }
871
872 *got_packet = 1;
873 }
874
875 err = vaapi_encode_clear_old(avctx);
876 if (err < 0) {
877 av_log(avctx, AV_LOG_ERROR, "List clearing failed: %d.\n", err);
878 goto fail;
879 }
880
881 return 0;
882
883 fail:
884 // Unclear what to clean up on failure. There are probably some things we
885 // could do usefully clean up here, but for now just leave them for uninit()
886 // to do instead.
887 return err;
888 }
889
890 av_cold int ff_vaapi_encode_init(AVCodecContext *avctx,
891 const VAAPIEncodeType *type)
892 {
893 VAAPIEncodeContext *ctx = avctx->priv_data;
894 AVVAAPIFramesContext *recon_hwctx = NULL;
895 AVVAAPIHWConfig *hwconfig = NULL;
896 AVHWFramesConstraints *constraints = NULL;
897 enum AVPixelFormat recon_format;
898 VAStatus vas;
899 int err, i;
900
901 if (!avctx->hw_frames_ctx) {
902 av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is "
903 "required to associate the encoding device.\n");
904 return AVERROR(EINVAL);
905 }
906
907 ctx->codec = type;
908 ctx->codec_options = ctx->codec_options_data;
909
910 ctx->priv_data = av_mallocz(type->priv_data_size);
911 if (!ctx->priv_data) {
912 err = AVERROR(ENOMEM);
913 goto fail;
914 }
915
916 ctx->input_frames_ref = av_buffer_ref(avctx->hw_frames_ctx);
917 if (!ctx->input_frames_ref) {
918 err = AVERROR(ENOMEM);
919 goto fail;
920 }
921 ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data;
922
923 ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref);
924 if (!ctx->device_ref) {
925 err = AVERROR(ENOMEM);
926 goto fail;
927 }
928 ctx->device = (AVHWDeviceContext*)ctx->device_ref->data;
929 ctx->hwctx = ctx->device->hwctx;
930
931 err = ctx->codec->init(avctx);
932 if (err < 0)
933 goto fail;
934
935 vas = vaCreateConfig(ctx->hwctx->display,
936 ctx->va_profile, ctx->va_entrypoint,
937 ctx->config_attributes, ctx->nb_config_attributes,
938 &ctx->va_config);
939 if (vas != VA_STATUS_SUCCESS) {
940 av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
941 "configuration: %d (%s).\n", vas, vaErrorStr(vas));
942 err = AVERROR(EIO);
943 goto fail;
944 }
945
946 hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref);
947 if (!hwconfig) {
948 err = AVERROR(ENOMEM);
949 goto fail;
950 }
951 hwconfig->config_id = ctx->va_config;
952
953 constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref,
954 hwconfig);
955 if (!constraints) {
956 err = AVERROR(ENOMEM);
957 goto fail;
958 }
959
960 // Probably we can use the input surface format as the surface format
961 // of the reconstructed frames. If not, we just pick the first (only?)
962 // format in the valid list and hope that it all works.
963 recon_format = AV_PIX_FMT_NONE;
964 if (constraints->valid_sw_formats) {
965 for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) {
966 if (ctx->input_frames->sw_format ==
967 constraints->valid_sw_formats[i]) {
968 recon_format = ctx->input_frames->sw_format;
969 break;
970 }
971 }
972 if (recon_format == AV_PIX_FMT_NONE)
973 recon_format = constraints->valid_sw_formats[i];
974 } else {
975 // No idea what to use; copy input format.
976 recon_format = ctx->input_frames->sw_format;
977 }
978 av_log(avctx, AV_LOG_DEBUG, "Using %s as format of "
979 "reconstructed frames.\n", av_get_pix_fmt_name(recon_format));
980
981 if (ctx->aligned_width < constraints->min_width ||
982 ctx->aligned_height < constraints->min_height ||
983 ctx->aligned_width > constraints->max_width ||
984 ctx->aligned_height > constraints->max_height) {
985 av_log(avctx, AV_LOG_ERROR, "Hardware does not support encoding at "
986 "size %dx%d (constraints: width %d-%d height %d-%d).\n",
987 ctx->aligned_width, ctx->aligned_height,
988 constraints->min_width, constraints->max_width,
989 constraints->min_height, constraints->max_height);
990 err = AVERROR(EINVAL);
991 goto fail;
992 }
993
994 av_freep(&hwconfig);
995 av_hwframe_constraints_free(&constraints);
996
997 ctx->recon_frames_ref = av_hwframe_ctx_alloc(ctx->device_ref);
998 if (!ctx->recon_frames_ref) {
999 err = AVERROR(ENOMEM);
1000 goto fail;
1001 }
1002 ctx->recon_frames = (AVHWFramesContext*)ctx->recon_frames_ref->data;
1003
1004 ctx->recon_frames->format = AV_PIX_FMT_VAAPI;
1005 ctx->recon_frames->sw_format = recon_format;
1006 ctx->recon_frames->width = ctx->aligned_width;
1007 ctx->recon_frames->height = ctx->aligned_height;
1008 ctx->recon_frames->initial_pool_size = ctx->nb_recon_frames;
1009
1010 err = av_hwframe_ctx_init(ctx->recon_frames_ref);
1011 if (err < 0) {
1012 av_log(avctx, AV_LOG_ERROR, "Failed to initialise reconstructed "
1013 "frame context: %d.\n", err);
1014 goto fail;
1015 }
1016 recon_hwctx = ctx->recon_frames->hwctx;
1017
1018 vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
1019 ctx->aligned_width, ctx->aligned_height,
1020 VA_PROGRESSIVE,
1021 recon_hwctx->surface_ids,
1022 recon_hwctx->nb_surfaces,
1023 &ctx->va_context);
1024 if (vas != VA_STATUS_SUCCESS) {
1025 av_log(avctx, AV_LOG_ERROR, "Failed to create encode pipeline "
1026 "context: %d (%s).\n", vas, vaErrorStr(vas));
1027 err = AVERROR(EIO);
1028 goto fail;
1029 }
1030
1031 ctx->input_order = 0;
1032 ctx->output_delay = avctx->max_b_frames;
1033 ctx->decode_delay = 1;
1034 ctx->output_order = - ctx->output_delay - 1;
1035
1036 if (ctx->codec->sequence_params_size > 0) {
1037 ctx->codec_sequence_params =
1038 av_mallocz(ctx->codec->sequence_params_size);
1039 if (!ctx->codec_sequence_params) {
1040 err = AVERROR(ENOMEM);
1041 goto fail;
1042 }
1043 }
1044 if (ctx->codec->picture_params_size > 0) {
1045 ctx->codec_picture_params =
1046 av_mallocz(ctx->codec->picture_params_size);
1047 if (!ctx->codec_picture_params) {
1048 err = AVERROR(ENOMEM);
1049 goto fail;
1050 }
1051 }
1052
1053 if (ctx->codec->init_sequence_params) {
1054 err = ctx->codec->init_sequence_params(avctx);
1055 if (err < 0) {
1056 av_log(avctx, AV_LOG_ERROR, "Codec sequence initialisation "
1057 "failed: %d.\n", err);
1058 goto fail;
1059 }
1060 }
1061
1062 // All I are IDR for now.
1063 ctx->i_per_idr = 0;
1064 ctx->p_per_i = ((avctx->gop_size + avctx->max_b_frames) /
1065 (avctx->max_b_frames + 1));
1066 ctx->b_per_p = avctx->max_b_frames;
1067
1068 // This should be configurable somehow. (Needs testing on a machine
1069 // where it actually overlaps properly, though.)
1070 ctx->issue_mode = ISSUE_MODE_MAXIMISE_THROUGHPUT;
1071
1072 return 0;
1073
1074 fail:
1075 av_freep(&hwconfig);
1076 av_hwframe_constraints_free(&constraints);
1077 ff_vaapi_encode_close(avctx);
1078 return err;
1079 }
1080
1081 av_cold int ff_vaapi_encode_close(AVCodecContext *avctx)
1082 {
1083 VAAPIEncodeContext *ctx = avctx->priv_data;
1084 VAAPIEncodePicture *pic, *next;
1085
1086 for (pic = ctx->pic_start; pic; pic = next) {
1087 next = pic->next;
1088 vaapi_encode_free(avctx, pic);
1089 }
1090
1091 if (ctx->va_context != VA_INVALID_ID)
1092 vaDestroyContext(ctx->hwctx->display, ctx->va_context);
1093
1094 if (ctx->va_config != VA_INVALID_ID)
1095 vaDestroyConfig(ctx->hwctx->display, ctx->va_config);
1096
1097 if (ctx->codec->close)
1098 ctx->codec->close(avctx);
1099
1100 av_freep(&ctx->codec_sequence_params);
1101 av_freep(&ctx->codec_picture_params);
1102
1103 av_buffer_unref(&ctx->recon_frames_ref);
1104 av_buffer_unref(&ctx->input_frames_ref);
1105 av_buffer_unref(&ctx->device_ref);
1106
1107 av_freep(&ctx->priv_data);
1108
1109 return 0;
1110 }