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examples/output: switch to the new encoding API
[libav.git] / libavcodec / vaapi_encode_h264.c
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2c62fcdf
MT		 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 <va/va.h>
20#include <va/va_enc_h264.h>
21
22#include "libavutil/avassert.h"
23#include "libavutil/internal.h"
24#include "libavutil/opt.h"
25#include "libavutil/pixfmt.h"
26
27#include "avcodec.h"
251cbb44 28#include "h264.h"
48e2967c 29#include "h264_sei.h"
2c62fcdf
MT		 30#include "internal.h"
31#include "vaapi_encode.h"
32#include "vaapi_encode_h26x.h"
33
34enum {
35 SLICE_TYPE_P = 0,
36 SLICE_TYPE_B = 1,
37 SLICE_TYPE_I = 2,
38 SLICE_TYPE_SP = 3,
39 SLICE_TYPE_SI = 4,
40};
41
42// This structure contains all possibly-useful per-sequence syntax elements
43// which are not already contained in the various VAAPI structures.
44typedef struct VAAPIEncodeH264MiscSequenceParams {
45 unsigned int profile_idc;
46 char constraint_set0_flag;
47 char constraint_set1_flag;
48 char constraint_set2_flag;
49 char constraint_set3_flag;
50 char constraint_set4_flag;
51 char constraint_set5_flag;
52
53 char separate_colour_plane_flag;
54 char qpprime_y_zero_transform_bypass_flag;
55
56 char gaps_in_frame_num_allowed_flag;
57 char delta_pic_order_always_zero_flag;
58 char bottom_field_pic_order_in_frame_present_flag;
59
60 unsigned int num_slice_groups_minus1;
61 unsigned int slice_group_map_type;
62
63 int pic_init_qs_minus26;
64
081961f8
MT		 65 char overscan_info_present_flag;
66 char overscan_appropriate_flag;
67
68 char video_signal_type_present_flag;
69 unsigned int video_format;
70 char video_full_range_flag;
71 char colour_description_present_flag;
72 unsigned int colour_primaries;
73 unsigned int transfer_characteristics;
74 unsigned int matrix_coefficients;
75
76 char chroma_loc_info_present_flag;
77 unsigned int chroma_sample_loc_type_top_field;
78 unsigned int chroma_sample_loc_type_bottom_field;
79
80 // Some timing elements are in VAEncSequenceParameterBufferH264.
81 char fixed_frame_rate_flag;
82
83 char nal_hrd_parameters_present_flag;
84 char vcl_hrd_parameters_present_flag;
85 char low_delay_hrd_flag;
86 char pic_struct_present_flag;
87 char bitstream_restriction_flag;
48e2967c
MT		 88
89 unsigned int cpb_cnt_minus1;
90 unsigned int bit_rate_scale;
91 unsigned int cpb_size_scale;
92 unsigned int bit_rate_value_minus1[32];
93 unsigned int cpb_size_value_minus1[32];
94 char cbr_flag[32];
95 unsigned int initial_cpb_removal_delay_length_minus1;
96 unsigned int cpb_removal_delay_length_minus1;
97 unsigned int dpb_output_delay_length_minus1;
98 unsigned int time_offset_length;
99
100 unsigned int initial_cpb_removal_delay;
101 unsigned int initial_cpb_removal_delay_offset;
102
103 unsigned int pic_struct;
2c62fcdf
MT		 104} VAAPIEncodeH264MiscSequenceParams;
105
106// This structure contains all possibly-useful per-slice syntax elements
107// which are not already contained in the various VAAPI structures.
108typedef struct VAAPIEncodeH264MiscSliceParams {
109 unsigned int nal_unit_type;
110 unsigned int nal_ref_idc;
111
112 unsigned int colour_plane_id;
113 char field_pic_flag;
114 char bottom_field_flag;
115
116 unsigned int redundant_pic_cnt;
117
118 char sp_for_switch_flag;
119 int slice_qs_delta;
120
121 char ref_pic_list_modification_flag_l0;
122 char ref_pic_list_modification_flag_l1;
123
124 char no_output_of_prior_pics_flag;
125 char long_term_reference_flag;
126 char adaptive_ref_pic_marking_mode_flag;
127} VAAPIEncodeH264MiscSliceParams;
128
129typedef struct VAAPIEncodeH264Slice {
130 VAAPIEncodeH264MiscSliceParams misc_slice_params;
131} VAAPIEncodeH264Slice;
132
133typedef struct VAAPIEncodeH264Context {
134 VAAPIEncodeH264MiscSequenceParams misc_sequence_params;
135
136 int mb_width;
137 int mb_height;
138
139 int fixed_qp_idr;
140 int fixed_qp_p;
141 int fixed_qp_b;
142
b51c7c6b 143 int next_frame_num;
2c62fcdf 144 int64_t idr_pic_count;
2c62fcdf 145
48e2967c
MT		 146 int cpb_delay;
147 int dpb_delay;
148
6e8f66fc 149 // Rate control configuration.
48e2967c 150 int send_timing_sei;
6e8f66fc
MT		 151 struct {
152 VAEncMiscParameterBuffer misc;
153 VAEncMiscParameterRateControl rc;
154 } rc_params;
155 struct {
156 VAEncMiscParameterBuffer misc;
157 VAEncMiscParameterHRD hrd;
158 } hrd_params;
fcf536b1
MT		 159
160#if VA_CHECK_VERSION(0, 36, 0)
161 // Speed-quality tradeoff setting.
162 struct {
163 VAEncMiscParameterBuffer misc;
164 VAEncMiscParameterBufferQualityLevel quality;
165 } quality_params;
166#endif
2c62fcdf
MT		 167} VAAPIEncodeH264Context;
168
9629701c
MT		 169typedef struct VAAPIEncodeH264Options {
170 int qp;
fcf536b1 171 int quality;
a86aa160 172 int low_power;
9629701c
MT		 173} VAAPIEncodeH264Options;
174
2c62fcdf
MT		 175
176#define vseq_var(name) vseq->name, name
177#define vseq_field(name) vseq->seq_fields.bits.name, name
081961f8 178#define vvui_field(name) vseq->vui_fields.bits.name, name
2c62fcdf
MT		 179#define vpic_var(name) vpic->name, name
180#define vpic_field(name) vpic->pic_fields.bits.name, name
181#define vslice_var(name) vslice->name, name
182#define vslice_field(name) vslice->slice_fields.bits.name, name
183#define mseq_var(name) mseq->name, name
184#define mslice_var(name) mslice->name, name
185
186static void vaapi_encode_h264_write_nal_header(PutBitContext *pbc,
187 int nal_unit_type, int nal_ref_idc)
188{
189 u(1, 0, forbidden_zero_bit);
190 u(2, nal_ref_idc, nal_ref_idc);
191 u(5, nal_unit_type, nal_unit_type);
192}
193
194static void vaapi_encode_h264_write_trailing_rbsp(PutBitContext *pbc)
195{
196 u(1, 1, rbsp_stop_one_bit);
197 while (put_bits_count(pbc) & 7)
198 u(1, 0, rbsp_alignment_zero_bit);
199}
200
081961f8
MT		 201static void vaapi_encode_h264_write_vui(PutBitContext *pbc,
202 VAAPIEncodeContext *ctx)
203{
204 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
205 VAAPIEncodeH264Context *priv = ctx->priv_data;
206 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
48e2967c 207 int i;
081961f8
MT		 208
209 u(1, vvui_field(aspect_ratio_info_present_flag));
210 if (vseq->vui_fields.bits.aspect_ratio_info_present_flag) {
211 u(8, vseq_var(aspect_ratio_idc));
212 if (vseq->aspect_ratio_idc == 255) {
213 u(16, vseq_var(sar_width));
214 u(16, vseq_var(sar_height));
215 }
216 }
217
218 u(1, mseq_var(overscan_info_present_flag));
219 if (mseq->overscan_info_present_flag)
220 u(1, mseq_var(overscan_appropriate_flag));
221
222 u(1, mseq_var(video_signal_type_present_flag));
223 if (mseq->video_signal_type_present_flag) {
224 u(3, mseq_var(video_format));
225 u(1, mseq_var(video_full_range_flag));
226 u(1, mseq_var(colour_description_present_flag));
227 if (mseq->colour_description_present_flag) {
228 u(8, mseq_var(colour_primaries));
229 u(8, mseq_var(transfer_characteristics));
230 u(8, mseq_var(matrix_coefficients));
231 }
232 }
233
234 u(1, mseq_var(chroma_loc_info_present_flag));
235 if (mseq->chroma_loc_info_present_flag) {
236 ue(mseq_var(chroma_sample_loc_type_top_field));
237 ue(mseq_var(chroma_sample_loc_type_bottom_field));
238 }
239
240 u(1, vvui_field(timing_info_present_flag));
241 if (vseq->vui_fields.bits.timing_info_present_flag) {
242 u(32, vseq_var(num_units_in_tick));
243 u(32, vseq_var(time_scale));
244 u(1, mseq_var(fixed_frame_rate_flag));
245 }
246
247 u(1, mseq_var(nal_hrd_parameters_present_flag));
248 if (mseq->nal_hrd_parameters_present_flag) {
48e2967c
MT		 249 ue(mseq_var(cpb_cnt_minus1));
250 u(4, mseq_var(bit_rate_scale));
251 u(4, mseq_var(cpb_size_scale));
252 for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
253 ue(mseq_var(bit_rate_value_minus1[i]));
254 ue(mseq_var(cpb_size_value_minus1[i]));
255 u(1, mseq_var(cbr_flag[i]));
256 }
257 u(5, mseq_var(initial_cpb_removal_delay_length_minus1));
258 u(5, mseq_var(cpb_removal_delay_length_minus1));
259 u(5, mseq_var(dpb_output_delay_length_minus1));
260 u(5, mseq_var(time_offset_length));
081961f8
MT		 261 }
262 u(1, mseq_var(vcl_hrd_parameters_present_flag));
263 if (mseq->vcl_hrd_parameters_present_flag) {
264 av_assert0(0 && "vcl hrd parameters not supported");
265 }
266
267 if (mseq->nal_hrd_parameters_present_flag ||
268 mseq->vcl_hrd_parameters_present_flag)
269 u(1, mseq_var(low_delay_hrd_flag));
270 u(1, mseq_var(pic_struct_present_flag));
271
272 u(1, vvui_field(bitstream_restriction_flag));
273 if (vseq->vui_fields.bits.bitstream_restriction_flag) {
274 av_assert0(0 && "bitstream restrictions not supported");
275 }
276}
277
2c62fcdf
MT		 278static void vaapi_encode_h264_write_sps(PutBitContext *pbc,
279 VAAPIEncodeContext *ctx)
280{
281 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
282 VAAPIEncodeH264Context *priv = ctx->priv_data;
283 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
284 int i;
285
5c2fb561 286 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SPS, 3);
2c62fcdf
MT		 287
288 u(8, mseq_var(profile_idc));
289 u(1, mseq_var(constraint_set0_flag));
290 u(1, mseq_var(constraint_set1_flag));
291 u(1, mseq_var(constraint_set2_flag));
292 u(1, mseq_var(constraint_set3_flag));
293 u(1, mseq_var(constraint_set4_flag));
294 u(1, mseq_var(constraint_set5_flag));
295 u(2, 0, reserved_zero_2bits);
296
297 u(8, vseq_var(level_idc));
298
299 ue(vseq_var(seq_parameter_set_id));
300
301 if (mseq->profile_idc == 100 || mseq->profile_idc == 110 ||
302 mseq->profile_idc == 122 || mseq->profile_idc == 244 ||
303 mseq->profile_idc == 44 || mseq->profile_idc == 83 ||
304 mseq->profile_idc == 86 || mseq->profile_idc == 118 ||
305 mseq->profile_idc == 128 || mseq->profile_idc == 138) {
306 ue(vseq_field(chroma_format_idc));
307
308 if (vseq->seq_fields.bits.chroma_format_idc == 3)
309 u(1, mseq_var(separate_colour_plane_flag));
310
311 ue(vseq_var(bit_depth_luma_minus8));
312 ue(vseq_var(bit_depth_chroma_minus8));
313
314 u(1, mseq_var(qpprime_y_zero_transform_bypass_flag));
315
316 u(1, vseq_field(seq_scaling_matrix_present_flag));
317 if (vseq->seq_fields.bits.seq_scaling_matrix_present_flag) {
318 av_assert0(0 && "scaling matrices not supported");
319 }
320 }
321
322 ue(vseq_field(log2_max_frame_num_minus4));
323 ue(vseq_field(pic_order_cnt_type));
324
325 if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
326 ue(vseq_field(log2_max_pic_order_cnt_lsb_minus4));
327 } else if (vseq->seq_fields.bits.pic_order_cnt_type == 1) {
328 u(1, mseq_var(delta_pic_order_always_zero_flag));
329 se(vseq_var(offset_for_non_ref_pic));
330 se(vseq_var(offset_for_top_to_bottom_field));
331 ue(vseq_var(num_ref_frames_in_pic_order_cnt_cycle));
332
333 for (i = 0; i < vseq->num_ref_frames_in_pic_order_cnt_cycle; i++)
334 se(vseq_var(offset_for_ref_frame[i]));
335 }
336
337 ue(vseq_var(max_num_ref_frames));
338 u(1, mseq_var(gaps_in_frame_num_allowed_flag));
339
340 ue(vseq->picture_width_in_mbs - 1, pic_width_in_mbs_minus1);
341 ue(vseq->picture_height_in_mbs - 1, pic_height_in_mbs_minus1);
342
343 u(1, vseq_field(frame_mbs_only_flag));
344 if (!vseq->seq_fields.bits.frame_mbs_only_flag)
345 u(1, vseq_field(mb_adaptive_frame_field_flag));
346
347 u(1, vseq_field(direct_8x8_inference_flag));
348
349 u(1, vseq_var(frame_cropping_flag));
350 if (vseq->frame_cropping_flag) {
351 ue(vseq_var(frame_crop_left_offset));
352 ue(vseq_var(frame_crop_right_offset));
353 ue(vseq_var(frame_crop_top_offset));
354 ue(vseq_var(frame_crop_bottom_offset));
355 }
356
081961f8
MT		 357 u(1, vseq_var(vui_parameters_present_flag));
358 if (vseq->vui_parameters_present_flag)
359 vaapi_encode_h264_write_vui(pbc, ctx);
2c62fcdf
MT		 360
361 vaapi_encode_h264_write_trailing_rbsp(pbc);
362}
363
364static void vaapi_encode_h264_write_pps(PutBitContext *pbc,
365 VAAPIEncodeContext *ctx)
366{
367 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
368 VAAPIEncodeH264Context *priv = ctx->priv_data;
369 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
370
5c2fb561 371 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_PPS, 3);
2c62fcdf
MT		 372
373 ue(vpic_var(pic_parameter_set_id));
374 ue(vpic_var(seq_parameter_set_id));
375
376 u(1, vpic_field(entropy_coding_mode_flag));
377 u(1, mseq_var(bottom_field_pic_order_in_frame_present_flag));
378
379 ue(mseq_var(num_slice_groups_minus1));
380 if (mseq->num_slice_groups_minus1 > 0) {
381 ue(mseq_var(slice_group_map_type));
382 av_assert0(0 && "slice groups not supported");
383 }
384
385 ue(vpic_var(num_ref_idx_l0_active_minus1));
386 ue(vpic_var(num_ref_idx_l1_active_minus1));
387
388 u(1, vpic_field(weighted_pred_flag));
389 u(2, vpic_field(weighted_bipred_idc));
390
391 se(vpic->pic_init_qp - 26, pic_init_qp_minus26);
392 se(mseq_var(pic_init_qs_minus26));
393 se(vpic_var(chroma_qp_index_offset));
394
395 u(1, vpic_field(deblocking_filter_control_present_flag));
396 u(1, vpic_field(constrained_intra_pred_flag));
397 u(1, vpic_field(redundant_pic_cnt_present_flag));
398 u(1, vpic_field(transform_8x8_mode_flag));
399
400 u(1, vpic_field(pic_scaling_matrix_present_flag));
401 if (vpic->pic_fields.bits.pic_scaling_matrix_present_flag) {
402 av_assert0(0 && "scaling matrices not supported");
403 }
404
405 se(vpic_var(second_chroma_qp_index_offset));
406
407 vaapi_encode_h264_write_trailing_rbsp(pbc);
408}
409
410static void vaapi_encode_h264_write_slice_header2(PutBitContext *pbc,
411 VAAPIEncodeContext *ctx,
412 VAAPIEncodePicture *pic,
413 VAAPIEncodeSlice *slice)
414{
415 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
416 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
417 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
418 VAAPIEncodeH264Context *priv = ctx->priv_data;
419 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
420 VAAPIEncodeH264Slice *pslice = slice->priv_data;
421 VAAPIEncodeH264MiscSliceParams *mslice = &pslice->misc_slice_params;
422
423 vaapi_encode_h264_write_nal_header(pbc, mslice->nal_unit_type,
424 mslice->nal_ref_idc);
425
426 ue(vslice->macroblock_address, first_mb_in_slice);
427 ue(vslice_var(slice_type));
428 ue(vpic_var(pic_parameter_set_id));
429
430 if (mseq->separate_colour_plane_flag) {
431 u(2, mslice_var(colour_plane_id));
432 }
433
434 u(4 + vseq->seq_fields.bits.log2_max_frame_num_minus4,
435 (vpic->frame_num &
436 ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1)),
437 frame_num);
438
439 if (!vseq->seq_fields.bits.frame_mbs_only_flag) {
440 u(1, mslice_var(field_pic_flag));
441 if (mslice->field_pic_flag)
442 u(1, mslice_var(bottom_field_flag));
443 }
444
445 if (vpic->pic_fields.bits.idr_pic_flag) {
446 ue(vslice_var(idr_pic_id));
447 }
448
449 if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
450 u(4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4,
451 vslice_var(pic_order_cnt_lsb));
452 if (mseq->bottom_field_pic_order_in_frame_present_flag &&
453 !mslice->field_pic_flag) {
454 se(vslice_var(delta_pic_order_cnt_bottom));
455 }
456 }
457
458 if (vseq->seq_fields.bits.pic_order_cnt_type == 1 &&
459 !vseq->seq_fields.bits.delta_pic_order_always_zero_flag) {
460 se(vslice_var(delta_pic_order_cnt[0]));
461 if (mseq->bottom_field_pic_order_in_frame_present_flag &&
462 !mslice->field_pic_flag) {
463 se(vslice_var(delta_pic_order_cnt[1]));
464 }
465 }
466
467 if (vpic->pic_fields.bits.redundant_pic_cnt_present_flag) {
468 ue(mslice_var(redundant_pic_cnt));
469 }
470
471 if (vslice->slice_type == SLICE_TYPE_B) {
472 u(1, vslice_var(direct_spatial_mv_pred_flag));
473 }
474
475 if (vslice->slice_type == SLICE_TYPE_P ||
476 vslice->slice_type == SLICE_TYPE_SP ||
477 vslice->slice_type == SLICE_TYPE_B) {
478 u(1, vslice_var(num_ref_idx_active_override_flag));
479 if (vslice->num_ref_idx_active_override_flag) {
480 ue(vslice_var(num_ref_idx_l0_active_minus1));
481 if (vslice->slice_type == SLICE_TYPE_B)
482 ue(vslice_var(num_ref_idx_l1_active_minus1));
483 }
484 }
485
486 if (mslice->nal_unit_type == 20 || mslice->nal_unit_type == 21) {
487 av_assert0(0 && "no MVC support");
488 } else {
489 if (vslice->slice_type % 5 != 2 && vslice->slice_type % 5 != 4) {
490 u(1, mslice_var(ref_pic_list_modification_flag_l0));
491 if (mslice->ref_pic_list_modification_flag_l0) {
492 av_assert0(0 && "ref pic list modification");
493 }
494 }
495 if (vslice->slice_type % 5 == 1) {
496 u(1, mslice_var(ref_pic_list_modification_flag_l1));
497 if (mslice->ref_pic_list_modification_flag_l1) {
498 av_assert0(0 && "ref pic list modification");
499 }
500 }
501 }
502
503 if ((vpic->pic_fields.bits.weighted_pred_flag &&
504 (vslice->slice_type == SLICE_TYPE_P ||
505 vslice->slice_type == SLICE_TYPE_SP)) ||
506 (vpic->pic_fields.bits.weighted_bipred_idc == 1 &&
507 vslice->slice_type == SLICE_TYPE_B)) {
508 av_assert0(0 && "prediction weights not supported");
509 }
510
511 av_assert0(mslice->nal_ref_idc > 0 ==
512 vpic->pic_fields.bits.reference_pic_flag);
513 if (mslice->nal_ref_idc != 0) {
514 if (vpic->pic_fields.bits.idr_pic_flag) {
515 u(1, mslice_var(no_output_of_prior_pics_flag));
516 u(1, mslice_var(long_term_reference_flag));
517 } else {
518 u(1, mslice_var(adaptive_ref_pic_marking_mode_flag));
519 if (mslice->adaptive_ref_pic_marking_mode_flag) {
520 av_assert0(0 && "MMCOs not supported");
521 }
522 }
523 }
524
525 if (vpic->pic_fields.bits.entropy_coding_mode_flag &&
526 vslice->slice_type != SLICE_TYPE_I &&
527 vslice->slice_type != SLICE_TYPE_SI) {
528 ue(vslice_var(cabac_init_idc));
529 }
530
531 se(vslice_var(slice_qp_delta));
532 if (vslice->slice_type == SLICE_TYPE_SP ||
533 vslice->slice_type == SLICE_TYPE_SI) {
534 if (vslice->slice_type == SLICE_TYPE_SP)
535 u(1, mslice_var(sp_for_switch_flag));
536 se(mslice_var(slice_qs_delta));
537 }
538
539 if (vpic->pic_fields.bits.deblocking_filter_control_present_flag) {
540 ue(vslice_var(disable_deblocking_filter_idc));
541 if (vslice->disable_deblocking_filter_idc != 1) {
542 se(vslice_var(slice_alpha_c0_offset_div2));
543 se(vslice_var(slice_beta_offset_div2));
544 }
545 }
546
547 if (mseq->num_slice_groups_minus1 > 0 &&
548 mseq->slice_group_map_type >= 3 && mseq->slice_group_map_type <= 5) {
549 av_assert0(0 && "slice groups not supported");
550 }
551
552 // No alignment - this need not be a byte boundary.
553}
554
48e2967c
MT		 555static void vaapi_encode_h264_write_buffering_period(PutBitContext *pbc,
556 VAAPIEncodeContext *ctx,
557 VAAPIEncodePicture *pic)
558{
559 VAAPIEncodeH264Context *priv = ctx->priv_data;
560 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
561 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
562 int i;
563
564 ue(vpic_var(seq_parameter_set_id));
565
566 if (mseq->nal_hrd_parameters_present_flag) {
567 for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
568 u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
569 mseq_var(initial_cpb_removal_delay));
570 u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
571 mseq_var(initial_cpb_removal_delay_offset));
572 }
573 }
574 if (mseq->vcl_hrd_parameters_present_flag) {
575 av_assert0(0 && "vcl hrd parameters not supported");
576 }
577}
578
579static void vaapi_encode_h264_write_pic_timing(PutBitContext *pbc,
580 VAAPIEncodeContext *ctx,
581 VAAPIEncodePicture *pic)
582{
583 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
584 VAAPIEncodeH264Context *priv = ctx->priv_data;
585 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
586 int i, num_clock_ts;
587
588 if (mseq->nal_hrd_parameters_present_flag ||
589 mseq->vcl_hrd_parameters_present_flag) {
590 u(mseq->cpb_removal_delay_length_minus1 + 1,
591 2 * vseq->num_units_in_tick * priv->cpb_delay,
592 cpb_removal_delay);
593 u(mseq->dpb_output_delay_length_minus1 + 1,
594 2 * vseq->num_units_in_tick * priv->dpb_delay,
595 dpb_output_delay);
596 }
597 if (mseq->pic_struct_present_flag) {
598 u(4, mseq_var(pic_struct));
599 num_clock_ts = (mseq->pic_struct <= 2 ? 1 :
600 mseq->pic_struct <= 4 ? 2 :
601 mseq->pic_struct <= 8 ? 3 : 0);
602 for (i = 0; i < num_clock_ts; i++) {
603 u(1, 0, clock_timestamp_flag[i]);
604 // No full timestamp information.
605 }
606 }
607}
608
02fa1ad9
MT		 609static void vaapi_encode_h264_write_identifier(PutBitContext *pbc,
610 VAAPIEncodeContext *ctx,
611 VAAPIEncodePicture *pic)
612{
613 const char *lavc = LIBAVCODEC_IDENT;
614 const char *vaapi = VA_VERSION_S;
615 const char *driver = vaQueryVendorString(ctx->hwctx->display);
616 char tmp[256];
617 int i;
618
619 // Random (version 4) ISO 11578 UUID.
620 uint8_t uuid[16] = {
621 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
622 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
623 };
624
625 for (i = 0; i < 16; i++)
626 u(8, uuid[i], uuid_iso_iec_11578);
627
628 snprintf(tmp, sizeof(tmp), "%s / VAAPI %s / %s", lavc, vaapi, driver);
629 for (i = 0; i < sizeof(tmp) && tmp[i]; i++)
630 u(8, tmp[i], user_data_payload_byte);
631}
632
48e2967c
MT		 633static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
634 VAAPIEncodeContext *ctx,
635 VAAPIEncodePicture *pic)
636{
637 VAAPIEncodeH264Context *priv = ctx->priv_data;
638 PutBitContext payload_bits;
639 char payload[256];
640 int payload_type, payload_size, i;
641 void (*write_payload)(PutBitContext *pbc,
642 VAAPIEncodeContext *ctx,
643 VAAPIEncodePicture *pic) = NULL;
644
5c2fb561 645 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SEI, 0);
48e2967c
MT		 646
647 for (payload_type = 0; payload_type < 64; payload_type++) {
648 switch (payload_type) {
649 case SEI_TYPE_BUFFERING_PERIOD:
650 if (!priv->send_timing_sei ||
651 pic->type != PICTURE_TYPE_IDR)
652 continue;
653 write_payload = &vaapi_encode_h264_write_buffering_period;
654 break;
655 case SEI_TYPE_PIC_TIMING:
656 if (!priv->send_timing_sei)
657 continue;
658 write_payload = &vaapi_encode_h264_write_pic_timing;
659 break;
02fa1ad9
MT		 660 case SEI_TYPE_USER_DATA_UNREGISTERED:
661 if (pic->encode_order != 0)
662 continue;
663 write_payload = &vaapi_encode_h264_write_identifier;
664 break;
48e2967c
MT		 665 default:
666 continue;
667 }
668
669 init_put_bits(&payload_bits, payload, sizeof(payload));
670 write_payload(&payload_bits, ctx, pic);
671 if (put_bits_count(&payload_bits) & 7) {
672 write_u(&payload_bits, 1, 1, bit_equal_to_one);
673 while (put_bits_count(&payload_bits) & 7)
674 write_u(&payload_bits, 1, 0, bit_equal_to_zero);
675 }
676 payload_size = put_bits_count(&payload_bits) / 8;
677 flush_put_bits(&payload_bits);
678
679 u(8, payload_type, last_payload_type_byte);
680 u(8, payload_size, last_payload_size_byte);
681 for (i = 0; i < payload_size; i++)
682 u(8, payload[i] & 0xff, sei_payload);
683 }
684
685 vaapi_encode_h264_write_trailing_rbsp(pbc);
686}
687
2c62fcdf
MT		 688static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
689 char *data, size_t *data_len)
690{
691 VAAPIEncodeContext *ctx = avctx->priv_data;
692 PutBitContext pbc;
693 char tmp[256];
694 int err;
695 size_t nal_len, bit_len, bit_pos, next_len;
696
697 bit_len = *data_len;
698 bit_pos = 0;
699
700 init_put_bits(&pbc, tmp, sizeof(tmp));
701 vaapi_encode_h264_write_sps(&pbc, ctx);
702 nal_len = put_bits_count(&pbc);
703 flush_put_bits(&pbc);
704
705 next_len = bit_len - bit_pos;
706 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
707 &next_len,
708 tmp, nal_len);
709 if (err < 0)
710 return err;
711 bit_pos += next_len;
712
713 init_put_bits(&pbc, tmp, sizeof(tmp));
714 vaapi_encode_h264_write_pps(&pbc, ctx);
715 nal_len = put_bits_count(&pbc);
716 flush_put_bits(&pbc);
717
718 next_len = bit_len - bit_pos;
719 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
720 &next_len,
721 tmp, nal_len);
722 if (err < 0)
723 return err;
724 bit_pos += next_len;
725
726 *data_len = bit_pos;
727 return 0;
728}
729
730static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
731 VAAPIEncodePicture *pic,
732 VAAPIEncodeSlice *slice,
733 char *data, size_t *data_len)
734{
735 VAAPIEncodeContext *ctx = avctx->priv_data;
736 PutBitContext pbc;
737 char tmp[256];
738 size_t header_len;
739
740 init_put_bits(&pbc, tmp, sizeof(tmp));
741 vaapi_encode_h264_write_slice_header2(&pbc, ctx, pic, slice);
742 header_len = put_bits_count(&pbc);
743 flush_put_bits(&pbc);
744
745 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
746 tmp, header_len);
747}
748
48e2967c
MT		 749static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
750 VAAPIEncodePicture *pic,
751 int index, int *type,
752 char *data, size_t *data_len)
753{
754 VAAPIEncodeContext *ctx = avctx->priv_data;
755 PutBitContext pbc;
756 char tmp[256];
757 size_t header_len;
758
759 if (index == 0 && ctx->va_rc_mode == VA_RC_CBR) {
760 *type = VAEncPackedHeaderH264_SEI;
761
762 init_put_bits(&pbc, tmp, sizeof(tmp));
763 vaapi_encode_h264_write_sei(&pbc, ctx, pic);
764 header_len = put_bits_count(&pbc);
765 flush_put_bits(&pbc);
766
767 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
768 tmp, header_len);
769
770 } else {
771 return AVERROR_EOF;
772 }
773}
774
2c62fcdf
MT		 775static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
776{
777 VAAPIEncodeContext *ctx = avctx->priv_data;
778 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
779 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
780 VAAPIEncodeH264Context *priv = ctx->priv_data;
781 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
782 int i;
783
784 {
785 vseq->seq_parameter_set_id = 0;
786
787 vseq->level_idc = avctx->level;
788
789 vseq->max_num_ref_frames = 2;
790
791 vseq->picture_width_in_mbs = priv->mb_width;
792 vseq->picture_height_in_mbs = priv->mb_height;
793
794 vseq->seq_fields.bits.chroma_format_idc = 1;
795 vseq->seq_fields.bits.frame_mbs_only_flag = 1;
796 vseq->seq_fields.bits.direct_8x8_inference_flag = 1;
797 vseq->seq_fields.bits.log2_max_frame_num_minus4 = 4;
798 vseq->seq_fields.bits.pic_order_cnt_type = 0;
799
800 if (ctx->input_width != ctx->aligned_width ||
801 ctx->input_height != ctx->aligned_height) {
802 vseq->frame_cropping_flag = 1;
803
804 vseq->frame_crop_left_offset = 0;
805 vseq->frame_crop_right_offset =
806 (ctx->aligned_width - ctx->input_width) / 2;
807 vseq->frame_crop_top_offset = 0;
808 vseq->frame_crop_bottom_offset =
809 (ctx->aligned_height - ctx->input_height) / 2;
810 } else {
811 vseq->frame_cropping_flag = 0;
812 }
6e8f66fc 813
081961f8
MT		 814 vseq->vui_parameters_present_flag = 1;
815 if (avctx->sample_aspect_ratio.num != 0) {
816 vseq->vui_fields.bits.aspect_ratio_info_present_flag = 1;
817 // There is a large enum of these which we could support
818 // individually rather than using the generic X/Y form?
819 if (avctx->sample_aspect_ratio.num ==
820 avctx->sample_aspect_ratio.den) {
821 vseq->aspect_ratio_idc = 1;
822 } else {
823 vseq->aspect_ratio_idc = 255; // Extended SAR.
824 vseq->sar_width = avctx->sample_aspect_ratio.num;
825 vseq->sar_height = avctx->sample_aspect_ratio.den;
826 }
827 }
828 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
829 avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
830 avctx->colorspace != AVCOL_SPC_UNSPECIFIED) {
831 mseq->video_signal_type_present_flag = 1;
832 mseq->video_format = 5; // Unspecified.
833 mseq->video_full_range_flag = 0;
834 mseq->colour_description_present_flag = 1;
835 // These enums are derived from the standard and hence
836 // we can just use the values directly.
837 mseq->colour_primaries = avctx->color_primaries;
838 mseq->transfer_characteristics = avctx->color_trc;
839 mseq->matrix_coefficients = avctx->colorspace;
840 }
841
6e8f66fc 842 vseq->bits_per_second = avctx->bit_rate;
081961f8
MT		 843
844 vseq->vui_fields.bits.timing_info_present_flag = 1;
6e8f66fc
MT		 845 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
846 vseq->num_units_in_tick = avctx->framerate.num;
847 vseq->time_scale = 2 * avctx->framerate.den;
081961f8 848 mseq->fixed_frame_rate_flag = 1;
6e8f66fc
MT		 849 } else {
850 vseq->num_units_in_tick = avctx->time_base.num;
851 vseq->time_scale = 2 * avctx->time_base.den;
081961f8 852 mseq->fixed_frame_rate_flag = 0;
6e8f66fc
MT		 853 }
854
48e2967c
MT		 855 if (ctx->va_rc_mode == VA_RC_CBR) {
856 priv->send_timing_sei = 1;
857 mseq->nal_hrd_parameters_present_flag = 1;
858
859 mseq->cpb_cnt_minus1 = 0;
860
861 // Try to scale these to a sensible range so that the
862 // golomb encode of the value is not overlong.
863 mseq->bit_rate_scale =
3a9662af 864 av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);
48e2967c 865 mseq->bit_rate_value_minus1[0] =
3a9662af 866 (avctx->bit_rate >> mseq->bit_rate_scale + 6) - 1;
48e2967c
MT		 867
868 mseq->cpb_size_scale =
3a9662af 869 av_clip_uintp2(av_log2(priv->hrd_params.hrd.buffer_size) - 15 - 4, 4);
48e2967c 870 mseq->cpb_size_value_minus1[0] =
3a9662af 871 (priv->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale + 4) - 1;
48e2967c
MT		 872
873 // CBR mode isn't actually available here, despite naming.
874 mseq->cbr_flag[0] = 0;
875
876 mseq->initial_cpb_removal_delay_length_minus1 = 23;
877 mseq->cpb_removal_delay_length_minus1 = 23;
878 mseq->dpb_output_delay_length_minus1 = 7;
879 mseq->time_offset_length = 0;
880
881 // This calculation can easily overflow 32 bits.
882 mseq->initial_cpb_removal_delay = 90000 *
883 (uint64_t)priv->hrd_params.hrd.initial_buffer_fullness /
884 priv->hrd_params.hrd.buffer_size;
885
886 mseq->initial_cpb_removal_delay_offset = 0;
887 } else {
888 priv->send_timing_sei = 0;
889 mseq->nal_hrd_parameters_present_flag = 0;
890 }
891
6e8f66fc
MT		 892 vseq->intra_period = ctx->p_per_i * (ctx->b_per_p + 1);
893 vseq->intra_idr_period = vseq->intra_period;
894 vseq->ip_period = ctx->b_per_p + 1;
2c62fcdf
MT		 895 }
896
897 {
898 vpic->CurrPic.picture_id = VA_INVALID_ID;
899 vpic->CurrPic.flags = VA_PICTURE_H264_INVALID;
900
901 for (i = 0; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
902 vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
903 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
904 }
905
906 vpic->coded_buf = VA_INVALID_ID;
907
908 vpic->pic_parameter_set_id = 0;
909 vpic->seq_parameter_set_id = 0;
910
911 vpic->num_ref_idx_l0_active_minus1 = 0;
912 vpic->num_ref_idx_l1_active_minus1 = 0;
913
914 vpic->pic_fields.bits.entropy_coding_mode_flag =
915 ((avctx->profile & 0xff) != 66);
916 vpic->pic_fields.bits.weighted_pred_flag = 0;
917 vpic->pic_fields.bits.weighted_bipred_idc = 0;
918 vpic->pic_fields.bits.transform_8x8_mode_flag =
919 ((avctx->profile & 0xff) >= 100);
920
921 vpic->pic_init_qp = priv->fixed_qp_idr;
922 }
923
924 {
925 mseq->profile_idc = avctx->profile & 0xff;
926
927 if (avctx->profile & FF_PROFILE_H264_CONSTRAINED)
928 mseq->constraint_set1_flag = 1;
929 if (avctx->profile & FF_PROFILE_H264_INTRA)
930 mseq->constraint_set3_flag = 1;
931 }
932
933 return 0;
934}
935
936static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
937 VAAPIEncodePicture *pic)
938{
939 VAAPIEncodeContext *ctx = avctx->priv_data;
940 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
941 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
942 VAAPIEncodeH264Context *priv = ctx->priv_data;
943 int i;
944
945 if (pic->type == PICTURE_TYPE_IDR) {
946 av_assert0(pic->display_order == pic->encode_order);
b51c7c6b
MT		 947 vpic->frame_num = 0;
948 priv->next_frame_num = 1;
48e2967c 949 priv->cpb_delay = 0;
2c62fcdf 950 } else {
b51c7c6b
MT		 951 vpic->frame_num = priv->next_frame_num;
952 if (pic->type != PICTURE_TYPE_B) {
953 // nal_ref_idc != 0
954 ++priv->next_frame_num;
955 }
48e2967c 956 ++priv->cpb_delay;
2c62fcdf 957 }
48e2967c 958 priv->dpb_delay = pic->display_order - pic->encode_order + 1;
2c62fcdf 959
b51c7c6b 960 vpic->frame_num = vpic->frame_num &
2c62fcdf
MT		 961 ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1);
962
963 vpic->CurrPic.picture_id = pic->recon_surface;
964 vpic->CurrPic.frame_idx = vpic->frame_num;
965 vpic->CurrPic.flags = 0;
966 vpic->CurrPic.TopFieldOrderCnt = pic->display_order;
967 vpic->CurrPic.BottomFieldOrderCnt = pic->display_order;
968
969 for (i = 0; i < pic->nb_refs; i++) {
970 VAAPIEncodePicture *ref = pic->refs[i];
b51c7c6b 971 av_assert0(ref && ref->encode_order < pic->encode_order);
2c62fcdf 972 vpic->ReferenceFrames[i].picture_id = ref->recon_surface;
b51c7c6b 973 vpic->ReferenceFrames[i].frame_idx = ref->encode_order;
2c62fcdf
MT		 974 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
975 vpic->ReferenceFrames[i].TopFieldOrderCnt = ref->display_order;
976 vpic->ReferenceFrames[i].BottomFieldOrderCnt = ref->display_order;
977 }
978 for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
979 vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
980 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
981 }
982
983 vpic->coded_buf = pic->output_buffer;
984
985 vpic->pic_fields.bits.idr_pic_flag = (pic->type == PICTURE_TYPE_IDR);
986 vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
987
988 pic->nb_slices = 1;
989
990 return 0;
991}
992
993static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
994 VAAPIEncodePicture *pic,
995 VAAPIEncodeSlice *slice)
996{
997 VAAPIEncodeContext *ctx = avctx->priv_data;
998 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
999 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
1000 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
1001 VAAPIEncodeH264Context *priv = ctx->priv_data;
1002 VAAPIEncodeH264Slice *pslice;
1003 VAAPIEncodeH264MiscSliceParams *mslice;
1004 int i;
1005
1006 slice->priv_data = av_mallocz(sizeof(*pslice));
1007 if (!slice->priv_data)
1008 return AVERROR(ENOMEM);
1009 pslice = slice->priv_data;
1010 mslice = &pslice->misc_slice_params;
1011
1012 if (pic->type == PICTURE_TYPE_IDR)
5c2fb561 1013 mslice->nal_unit_type = H264_NAL_IDR_SLICE;
2c62fcdf 1014 else
5c2fb561 1015 mslice->nal_unit_type = H264_NAL_SLICE;
2c62fcdf
MT		 1016
1017 switch (pic->type) {
1018 case PICTURE_TYPE_IDR:
1019 vslice->slice_type = SLICE_TYPE_I;
1020 mslice->nal_ref_idc = 3;
1021 break;
1022 case PICTURE_TYPE_I:
1023 vslice->slice_type = SLICE_TYPE_I;
1024 mslice->nal_ref_idc = 2;
1025 break;
1026 case PICTURE_TYPE_P:
1027 vslice->slice_type = SLICE_TYPE_P;
1028 mslice->nal_ref_idc = 1;
1029 break;
1030 case PICTURE_TYPE_B:
1031 vslice->slice_type = SLICE_TYPE_B;
1032 mslice->nal_ref_idc = 0;
1033 break;
1034 default:
1035 av_assert0(0 && "invalid picture type");
1036 }
1037
1038 // Only one slice per frame.
1039 vslice->macroblock_address = 0;
1040 vslice->num_macroblocks = priv->mb_width * priv->mb_height;
1041
1042 vslice->macroblock_info = VA_INVALID_ID;
1043
1044 vslice->pic_parameter_set_id = vpic->pic_parameter_set_id;
1045 vslice->idr_pic_id = priv->idr_pic_count++;
1046
1047 vslice->pic_order_cnt_lsb = pic->display_order &
1048 ((1 << (4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4)) - 1);
1049
1050 for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
1051 vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
1052 vslice->RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1053 vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
1054 vslice->RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1055 }
1056
1057 av_assert0(pic->nb_refs <= 2);
1058 if (pic->nb_refs >= 1) {
41ed7ab4 1059 // Backward reference for P- or B-frame.
2c62fcdf
MT		 1060 av_assert0(pic->type == PICTURE_TYPE_P ||
1061 pic->type == PICTURE_TYPE_B);
1062
1063 vslice->num_ref_idx_l0_active_minus1 = 0;
1064 vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
1065 }
1066 if (pic->nb_refs >= 2) {
41ed7ab4 1067 // Forward reference for B-frame.
2c62fcdf
MT		 1068 av_assert0(pic->type == PICTURE_TYPE_B);
1069
1070 vslice->num_ref_idx_l1_active_minus1 = 0;
1071 vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
1072 }
1073
1074 if (pic->type == PICTURE_TYPE_B)
1075 vslice->slice_qp_delta = priv->fixed_qp_b - vpic->pic_init_qp;
1076 else if (pic->type == PICTURE_TYPE_P)
1077 vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp;
1078 else
1079 vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp;
1080
1081 vslice->direct_spatial_mv_pred_flag = 1;
1082
1083 return 0;
1084}
1085
6e8f66fc
MT		 1086static av_cold int vaapi_encode_h264_init_constant_bitrate(AVCodecContext *avctx)
1087{
1088 VAAPIEncodeContext *ctx = avctx->priv_data;
1089 VAAPIEncodeH264Context *priv = ctx->priv_data;
1090 int hrd_buffer_size;
1091 int hrd_initial_buffer_fullness;
1092
1093 if (avctx->rc_buffer_size)
1094 hrd_buffer_size = avctx->rc_buffer_size;
1095 else
1096 hrd_buffer_size = avctx->bit_rate;
1097 if (avctx->rc_initial_buffer_occupancy)
1098 hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
1099 else
1100 hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
1101
1102 priv->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
1103 priv->rc_params.rc = (VAEncMiscParameterRateControl) {
1104 .bits_per_second = avctx->bit_rate,
1105 .target_percentage = 66,
1106 .window_size = 1000,
1107 .initial_qp = (avctx->qmax >= 0 ? avctx->qmax : 40),
1108 .min_qp = (avctx->qmin >= 0 ? avctx->qmin : 18),
1109 .basic_unit_size = 0,
1110 };
1111 ctx->global_params[ctx->nb_global_params] =
1112 &priv->rc_params.misc;
1113 ctx->global_params_size[ctx->nb_global_params++] =
1114 sizeof(priv->rc_params);
1115
1116 priv->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
1117 priv->hrd_params.hrd = (VAEncMiscParameterHRD) {
1118 .initial_buffer_fullness = hrd_initial_buffer_fullness,
1119 .buffer_size = hrd_buffer_size,
1120 };
1121 ctx->global_params[ctx->nb_global_params] =
1122 &priv->hrd_params.misc;
1123 ctx->global_params_size[ctx->nb_global_params++] =
1124 sizeof(priv->hrd_params);
1125
1126 // These still need to be set for pic_init_qp/slice_qp_delta.
1127 priv->fixed_qp_idr = 26;
1128 priv->fixed_qp_p = 26;
1129 priv->fixed_qp_b = 26;
1130
1131 av_log(avctx, AV_LOG_DEBUG, "Using constant-bitrate = %d bps.\n",
1132 avctx->bit_rate);
1133 return 0;
1134}
1135
1136static av_cold int vaapi_encode_h264_init_fixed_qp(AVCodecContext *avctx)
1137{
1138 VAAPIEncodeContext *ctx = avctx->priv_data;
1139 VAAPIEncodeH264Context *priv = ctx->priv_data;
9629701c 1140 VAAPIEncodeH264Options *opt = ctx->codec_options;
6e8f66fc 1141
9629701c 1142 priv->fixed_qp_p = opt->qp;
6e8f66fc
MT		 1143 if (avctx->i_quant_factor > 0.0)
1144 priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
1145 avctx->i_quant_offset) + 0.5);
1146 else
1147 priv->fixed_qp_idr = priv->fixed_qp_p;
1148 if (avctx->b_quant_factor > 0.0)
1149 priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
1150 avctx->b_quant_offset) + 0.5);
1151 else
1152 priv->fixed_qp_b = priv->fixed_qp_p;
1153
1154 av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
41ed7ab4 1155 "%d / %d / %d for IDR- / P- / B-frames.\n",
6e8f66fc
MT		 1156 priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1157 return 0;
1158}
1159
2c62fcdf
MT		 1160static av_cold int vaapi_encode_h264_init_internal(AVCodecContext *avctx)
1161{
f6b85523
MT		 1162 static const VAConfigAttrib default_config_attributes[] = {
1163 { .type = VAConfigAttribRTFormat,
1164 .value = VA_RT_FORMAT_YUV420 },
f6b85523
MT		 1165 { .type = VAConfigAttribEncPackedHeaders,
1166 .value = (VA_ENC_PACKED_HEADER_SEQUENCE |
1167 VA_ENC_PACKED_HEADER_SLICE) },
1168 };
1169
2c62fcdf
MT		 1170 VAAPIEncodeContext *ctx = avctx->priv_data;
1171 VAAPIEncodeH264Context *priv = ctx->priv_data;
fcf536b1 1172 VAAPIEncodeH264Options *opt = ctx->codec_options;
6e8f66fc 1173 int i, err;
2c62fcdf
MT		 1174
1175 switch (avctx->profile) {
1176 case FF_PROFILE_H264_CONSTRAINED_BASELINE:
1177 ctx->va_profile = VAProfileH264ConstrainedBaseline;
1178 break;
1179 case FF_PROFILE_H264_BASELINE:
1180 ctx->va_profile = VAProfileH264Baseline;
1181 break;
1182 case FF_PROFILE_H264_MAIN:
1183 ctx->va_profile = VAProfileH264Main;
1184 break;
1185 case FF_PROFILE_H264_EXTENDED:
1186 av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
1187 "is not supported.\n");
1188 return AVERROR_PATCHWELCOME;
1189 case FF_PROFILE_UNKNOWN:
1190 case FF_PROFILE_H264_HIGH:
1191 ctx->va_profile = VAProfileH264High;
1192 break;
1193 case FF_PROFILE_H264_HIGH_10:
1194 case FF_PROFILE_H264_HIGH_10_INTRA:
1195 av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
1196 "are not supported.\n");
1197 return AVERROR_PATCHWELCOME;
1198 case FF_PROFILE_H264_HIGH_422:
1199 case FF_PROFILE_H264_HIGH_422_INTRA:
1200 case FF_PROFILE_H264_HIGH_444:
1201 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
1202 case FF_PROFILE_H264_HIGH_444_INTRA:
1203 case FF_PROFILE_H264_CAVLC_444:
1204 av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
1205 "are not supported.\n");
1206 return AVERROR_PATCHWELCOME;
1207 default:
1208 av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
1209 avctx->profile);
1210 return AVERROR(EINVAL);
1211 }
a86aa160
MT		 1212 if (opt->low_power) {
1213#if VA_CHECK_VERSION(0, 39, 1)
1214 ctx->va_entrypoint = VAEntrypointEncSliceLP;
1215#else
1216 av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
1217 "supported with this VAAPI version.\n");
1218 return AVERROR(EINVAL);
1219#endif
1220 } else {
1221 ctx->va_entrypoint = VAEntrypointEncSlice;
1222 }
2c62fcdf 1223
2c62fcdf
MT		 1224 ctx->input_width = avctx->width;
1225 ctx->input_height = avctx->height;
1226 ctx->aligned_width = FFALIGN(ctx->input_width, 16);
1227 ctx->aligned_height = FFALIGN(ctx->input_height, 16);
1228 priv->mb_width = ctx->aligned_width / 16;
1229 priv->mb_height = ctx->aligned_height / 16;
1230
f6b85523
MT		 1231 for (i = 0; i < FF_ARRAY_ELEMS(default_config_attributes); i++) {
1232 ctx->config_attributes[ctx->nb_config_attributes++] =
1233 default_config_attributes[i];
1234 }
1235
6e8f66fc
MT		 1236 if (avctx->bit_rate > 0) {
1237 ctx->va_rc_mode = VA_RC_CBR;
1238 err = vaapi_encode_h264_init_constant_bitrate(avctx);
1239 } else {
1240 ctx->va_rc_mode = VA_RC_CQP;
1241 err = vaapi_encode_h264_init_fixed_qp(avctx);
1242 }
1243 if (err < 0)
1244 return err;
1245
1246 ctx->config_attributes[ctx->nb_config_attributes++] = (VAConfigAttrib) {
1247 .type = VAConfigAttribRateControl,
1248 .value = ctx->va_rc_mode,
1249 };
2c62fcdf 1250
fcf536b1
MT		 1251 if (opt->quality > 0) {
1252#if VA_CHECK_VERSION(0, 36, 0)
1253 priv->quality_params.misc.type =
1254 VAEncMiscParameterTypeQualityLevel;
1255 priv->quality_params.quality.quality_level = opt->quality;
1256
1257 ctx->global_params[ctx->nb_global_params] =
1258 &priv->quality_params.misc;
1259 ctx->global_params_size[ctx->nb_global_params++] =
1260 sizeof(priv->quality_params);
1261#else
1262 av_log(avctx, AV_LOG_WARNING, "The encode quality option is not "
1263 "supported with this VAAPI version.\n");
1264#endif
1265 }
1266
2c62fcdf
MT		 1267 ctx->nb_recon_frames = 20;
1268
1269 return 0;
1270}
1271
1272static VAAPIEncodeType vaapi_encode_type_h264 = {
1273 .priv_data_size = sizeof(VAAPIEncodeH264Context),
1274
1275 .init = &vaapi_encode_h264_init_internal,
1276
1277 .sequence_params_size = sizeof(VAEncSequenceParameterBufferH264),
1278 .init_sequence_params = &vaapi_encode_h264_init_sequence_params,
1279
1280 .picture_params_size = sizeof(VAEncPictureParameterBufferH264),
1281 .init_picture_params = &vaapi_encode_h264_init_picture_params,
1282
1283 .slice_params_size = sizeof(VAEncSliceParameterBufferH264),
1284 .init_slice_params = &vaapi_encode_h264_init_slice_params,
1285
1286 .sequence_header_type = VAEncPackedHeaderSequence,
1287 .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
1288
1289 .slice_header_type = VAEncPackedHeaderH264_Slice,
1290 .write_slice_header = &vaapi_encode_h264_write_slice_header,
48e2967c
MT		 1291
1292 .write_extra_header = &vaapi_encode_h264_write_extra_header,
2c62fcdf
MT		 1293};
1294
1295static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
1296{
1297 return ff_vaapi_encode_init(avctx, &vaapi_encode_type_h264);
1298}
1299
9629701c
MT		 1300#define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
1301 offsetof(VAAPIEncodeH264Options, x))
1302#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1303static const AVOption vaapi_encode_h264_options[] = {
41ed7ab4 1304 { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
9629701c 1305 OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
fcf536b1 1306 { "quality", "Set encode quality (trades off against speed, higher is faster)",
a86aa160
MT		 1307 OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
1308 { "low_power", "Use low-power encoding mode (experimental: only supported "
1309 "on some platforms, does not support all features)",
1310 OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
9629701c
MT		 1311 { NULL },
1312};
1313
2c62fcdf
MT		 1314static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1315 { "profile", "100" },
1316 { "level", "51" },
1317 { "b", "0" },
1318 { "bf", "2" },
1319 { "g", "120" },
2c62fcdf
MT		 1320 { "i_qfactor", "1.0" },
1321 { "i_qoffset", "0.0" },
1322 { "b_qfactor", "1.2" },
1323 { "b_qoffset", "0.0" },
1324 { NULL },
1325};
1326
1327static const AVClass vaapi_encode_h264_class = {
1328 .class_name = "h264_vaapi",
1329 .item_name = av_default_item_name,
9629701c 1330 .option = vaapi_encode_h264_options,
2c62fcdf
MT		 1331 .version = LIBAVUTIL_VERSION_INT,
1332};
1333
1334AVCodec ff_h264_vaapi_encoder = {
1335 .name = "h264_vaapi",
1336 .long_name = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1337 .type = AVMEDIA_TYPE_VIDEO,
1338 .id = AV_CODEC_ID_H264,
9629701c
MT		 1339 .priv_data_size = (sizeof(VAAPIEncodeContext) +
1340 sizeof(VAAPIEncodeH264Options)),
2c62fcdf
MT		 1341 .init = &vaapi_encode_h264_init,
1342 .encode2 = &ff_vaapi_encode2,
1343 .close = &ff_vaapi_encode_close,
1344 .priv_class = &vaapi_encode_h264_class,
1345 .capabilities = AV_CODEC_CAP_DELAY,
1346 .defaults = vaapi_encode_h264_defaults,
1347 .pix_fmts = (const enum AVPixelFormat[]) {
1348 AV_PIX_FMT_VAAPI,
1349 AV_PIX_FMT_NONE,
1350 },
1351};
Libav master