vaapi_h264: Fix CFR mode with frame_rate set in AVCodecContext
[libav.git] / libavcodec / vaapi_encode_h264.c
CommitLineData
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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"
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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
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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;
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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;
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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
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146 int cpb_delay;
147 int dpb_delay;
148
6e8f66fc 149 // Rate control configuration.
48e2967c 150 int send_timing_sei;
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151
152#if VA_CHECK_VERSION(0, 36, 0)
153 // Speed-quality tradeoff setting.
154 struct {
155 VAEncMiscParameterBuffer misc;
156 VAEncMiscParameterBufferQualityLevel quality;
157 } quality_params;
158#endif
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159} VAAPIEncodeH264Context;
160
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161typedef struct VAAPIEncodeH264Options {
162 int qp;
fcf536b1 163 int quality;
a86aa160 164 int low_power;
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165} VAAPIEncodeH264Options;
166
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167
168#define vseq_var(name) vseq->name, name
169#define vseq_field(name) vseq->seq_fields.bits.name, name
081961f8 170#define vvui_field(name) vseq->vui_fields.bits.name, name
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171#define vpic_var(name) vpic->name, name
172#define vpic_field(name) vpic->pic_fields.bits.name, name
173#define vslice_var(name) vslice->name, name
174#define vslice_field(name) vslice->slice_fields.bits.name, name
175#define mseq_var(name) mseq->name, name
176#define mslice_var(name) mslice->name, name
177
178static void vaapi_encode_h264_write_nal_header(PutBitContext *pbc,
179 int nal_unit_type, int nal_ref_idc)
180{
181 u(1, 0, forbidden_zero_bit);
182 u(2, nal_ref_idc, nal_ref_idc);
183 u(5, nal_unit_type, nal_unit_type);
184}
185
186static void vaapi_encode_h264_write_trailing_rbsp(PutBitContext *pbc)
187{
188 u(1, 1, rbsp_stop_one_bit);
189 while (put_bits_count(pbc) & 7)
190 u(1, 0, rbsp_alignment_zero_bit);
191}
192
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193static void vaapi_encode_h264_write_vui(PutBitContext *pbc,
194 VAAPIEncodeContext *ctx)
195{
196 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
197 VAAPIEncodeH264Context *priv = ctx->priv_data;
198 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
48e2967c 199 int i;
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200
201 u(1, vvui_field(aspect_ratio_info_present_flag));
202 if (vseq->vui_fields.bits.aspect_ratio_info_present_flag) {
203 u(8, vseq_var(aspect_ratio_idc));
204 if (vseq->aspect_ratio_idc == 255) {
205 u(16, vseq_var(sar_width));
206 u(16, vseq_var(sar_height));
207 }
208 }
209
210 u(1, mseq_var(overscan_info_present_flag));
211 if (mseq->overscan_info_present_flag)
212 u(1, mseq_var(overscan_appropriate_flag));
213
214 u(1, mseq_var(video_signal_type_present_flag));
215 if (mseq->video_signal_type_present_flag) {
216 u(3, mseq_var(video_format));
217 u(1, mseq_var(video_full_range_flag));
218 u(1, mseq_var(colour_description_present_flag));
219 if (mseq->colour_description_present_flag) {
220 u(8, mseq_var(colour_primaries));
221 u(8, mseq_var(transfer_characteristics));
222 u(8, mseq_var(matrix_coefficients));
223 }
224 }
225
226 u(1, mseq_var(chroma_loc_info_present_flag));
227 if (mseq->chroma_loc_info_present_flag) {
228 ue(mseq_var(chroma_sample_loc_type_top_field));
229 ue(mseq_var(chroma_sample_loc_type_bottom_field));
230 }
231
232 u(1, vvui_field(timing_info_present_flag));
233 if (vseq->vui_fields.bits.timing_info_present_flag) {
234 u(32, vseq_var(num_units_in_tick));
235 u(32, vseq_var(time_scale));
236 u(1, mseq_var(fixed_frame_rate_flag));
237 }
238
239 u(1, mseq_var(nal_hrd_parameters_present_flag));
240 if (mseq->nal_hrd_parameters_present_flag) {
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241 ue(mseq_var(cpb_cnt_minus1));
242 u(4, mseq_var(bit_rate_scale));
243 u(4, mseq_var(cpb_size_scale));
244 for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
245 ue(mseq_var(bit_rate_value_minus1[i]));
246 ue(mseq_var(cpb_size_value_minus1[i]));
247 u(1, mseq_var(cbr_flag[i]));
248 }
249 u(5, mseq_var(initial_cpb_removal_delay_length_minus1));
250 u(5, mseq_var(cpb_removal_delay_length_minus1));
251 u(5, mseq_var(dpb_output_delay_length_minus1));
252 u(5, mseq_var(time_offset_length));
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253 }
254 u(1, mseq_var(vcl_hrd_parameters_present_flag));
255 if (mseq->vcl_hrd_parameters_present_flag) {
256 av_assert0(0 && "vcl hrd parameters not supported");
257 }
258
259 if (mseq->nal_hrd_parameters_present_flag ||
260 mseq->vcl_hrd_parameters_present_flag)
261 u(1, mseq_var(low_delay_hrd_flag));
262 u(1, mseq_var(pic_struct_present_flag));
263
264 u(1, vvui_field(bitstream_restriction_flag));
265 if (vseq->vui_fields.bits.bitstream_restriction_flag) {
266 av_assert0(0 && "bitstream restrictions not supported");
267 }
268}
269
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270static void vaapi_encode_h264_write_sps(PutBitContext *pbc,
271 VAAPIEncodeContext *ctx)
272{
273 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
274 VAAPIEncodeH264Context *priv = ctx->priv_data;
275 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
276 int i;
277
5c2fb561 278 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SPS, 3);
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279
280 u(8, mseq_var(profile_idc));
281 u(1, mseq_var(constraint_set0_flag));
282 u(1, mseq_var(constraint_set1_flag));
283 u(1, mseq_var(constraint_set2_flag));
284 u(1, mseq_var(constraint_set3_flag));
285 u(1, mseq_var(constraint_set4_flag));
286 u(1, mseq_var(constraint_set5_flag));
287 u(2, 0, reserved_zero_2bits);
288
289 u(8, vseq_var(level_idc));
290
291 ue(vseq_var(seq_parameter_set_id));
292
293 if (mseq->profile_idc == 100 || mseq->profile_idc == 110 ||
294 mseq->profile_idc == 122 || mseq->profile_idc == 244 ||
295 mseq->profile_idc == 44 || mseq->profile_idc == 83 ||
296 mseq->profile_idc == 86 || mseq->profile_idc == 118 ||
297 mseq->profile_idc == 128 || mseq->profile_idc == 138) {
298 ue(vseq_field(chroma_format_idc));
299
300 if (vseq->seq_fields.bits.chroma_format_idc == 3)
301 u(1, mseq_var(separate_colour_plane_flag));
302
303 ue(vseq_var(bit_depth_luma_minus8));
304 ue(vseq_var(bit_depth_chroma_minus8));
305
306 u(1, mseq_var(qpprime_y_zero_transform_bypass_flag));
307
308 u(1, vseq_field(seq_scaling_matrix_present_flag));
309 if (vseq->seq_fields.bits.seq_scaling_matrix_present_flag) {
310 av_assert0(0 && "scaling matrices not supported");
311 }
312 }
313
314 ue(vseq_field(log2_max_frame_num_minus4));
315 ue(vseq_field(pic_order_cnt_type));
316
317 if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
318 ue(vseq_field(log2_max_pic_order_cnt_lsb_minus4));
319 } else if (vseq->seq_fields.bits.pic_order_cnt_type == 1) {
320 u(1, mseq_var(delta_pic_order_always_zero_flag));
321 se(vseq_var(offset_for_non_ref_pic));
322 se(vseq_var(offset_for_top_to_bottom_field));
323 ue(vseq_var(num_ref_frames_in_pic_order_cnt_cycle));
324
325 for (i = 0; i < vseq->num_ref_frames_in_pic_order_cnt_cycle; i++)
326 se(vseq_var(offset_for_ref_frame[i]));
327 }
328
329 ue(vseq_var(max_num_ref_frames));
330 u(1, mseq_var(gaps_in_frame_num_allowed_flag));
331
332 ue(vseq->picture_width_in_mbs - 1, pic_width_in_mbs_minus1);
333 ue(vseq->picture_height_in_mbs - 1, pic_height_in_mbs_minus1);
334
335 u(1, vseq_field(frame_mbs_only_flag));
336 if (!vseq->seq_fields.bits.frame_mbs_only_flag)
337 u(1, vseq_field(mb_adaptive_frame_field_flag));
338
339 u(1, vseq_field(direct_8x8_inference_flag));
340
341 u(1, vseq_var(frame_cropping_flag));
342 if (vseq->frame_cropping_flag) {
343 ue(vseq_var(frame_crop_left_offset));
344 ue(vseq_var(frame_crop_right_offset));
345 ue(vseq_var(frame_crop_top_offset));
346 ue(vseq_var(frame_crop_bottom_offset));
347 }
348
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349 u(1, vseq_var(vui_parameters_present_flag));
350 if (vseq->vui_parameters_present_flag)
351 vaapi_encode_h264_write_vui(pbc, ctx);
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352
353 vaapi_encode_h264_write_trailing_rbsp(pbc);
354}
355
356static void vaapi_encode_h264_write_pps(PutBitContext *pbc,
357 VAAPIEncodeContext *ctx)
358{
359 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
360 VAAPIEncodeH264Context *priv = ctx->priv_data;
361 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
362
5c2fb561 363 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_PPS, 3);
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364
365 ue(vpic_var(pic_parameter_set_id));
366 ue(vpic_var(seq_parameter_set_id));
367
368 u(1, vpic_field(entropy_coding_mode_flag));
369 u(1, mseq_var(bottom_field_pic_order_in_frame_present_flag));
370
371 ue(mseq_var(num_slice_groups_minus1));
372 if (mseq->num_slice_groups_minus1 > 0) {
373 ue(mseq_var(slice_group_map_type));
374 av_assert0(0 && "slice groups not supported");
375 }
376
377 ue(vpic_var(num_ref_idx_l0_active_minus1));
378 ue(vpic_var(num_ref_idx_l1_active_minus1));
379
380 u(1, vpic_field(weighted_pred_flag));
381 u(2, vpic_field(weighted_bipred_idc));
382
383 se(vpic->pic_init_qp - 26, pic_init_qp_minus26);
384 se(mseq_var(pic_init_qs_minus26));
385 se(vpic_var(chroma_qp_index_offset));
386
387 u(1, vpic_field(deblocking_filter_control_present_flag));
388 u(1, vpic_field(constrained_intra_pred_flag));
389 u(1, vpic_field(redundant_pic_cnt_present_flag));
390 u(1, vpic_field(transform_8x8_mode_flag));
391
392 u(1, vpic_field(pic_scaling_matrix_present_flag));
393 if (vpic->pic_fields.bits.pic_scaling_matrix_present_flag) {
394 av_assert0(0 && "scaling matrices not supported");
395 }
396
397 se(vpic_var(second_chroma_qp_index_offset));
398
399 vaapi_encode_h264_write_trailing_rbsp(pbc);
400}
401
402static void vaapi_encode_h264_write_slice_header2(PutBitContext *pbc,
403 VAAPIEncodeContext *ctx,
404 VAAPIEncodePicture *pic,
405 VAAPIEncodeSlice *slice)
406{
407 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
408 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
409 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
410 VAAPIEncodeH264Context *priv = ctx->priv_data;
411 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
412 VAAPIEncodeH264Slice *pslice = slice->priv_data;
413 VAAPIEncodeH264MiscSliceParams *mslice = &pslice->misc_slice_params;
414
415 vaapi_encode_h264_write_nal_header(pbc, mslice->nal_unit_type,
416 mslice->nal_ref_idc);
417
418 ue(vslice->macroblock_address, first_mb_in_slice);
419 ue(vslice_var(slice_type));
420 ue(vpic_var(pic_parameter_set_id));
421
422 if (mseq->separate_colour_plane_flag) {
423 u(2, mslice_var(colour_plane_id));
424 }
425
426 u(4 + vseq->seq_fields.bits.log2_max_frame_num_minus4,
427 (vpic->frame_num &
428 ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1)),
429 frame_num);
430
431 if (!vseq->seq_fields.bits.frame_mbs_only_flag) {
432 u(1, mslice_var(field_pic_flag));
433 if (mslice->field_pic_flag)
434 u(1, mslice_var(bottom_field_flag));
435 }
436
437 if (vpic->pic_fields.bits.idr_pic_flag) {
438 ue(vslice_var(idr_pic_id));
439 }
440
441 if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
442 u(4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4,
443 vslice_var(pic_order_cnt_lsb));
444 if (mseq->bottom_field_pic_order_in_frame_present_flag &&
445 !mslice->field_pic_flag) {
446 se(vslice_var(delta_pic_order_cnt_bottom));
447 }
448 }
449
450 if (vseq->seq_fields.bits.pic_order_cnt_type == 1 &&
451 !vseq->seq_fields.bits.delta_pic_order_always_zero_flag) {
452 se(vslice_var(delta_pic_order_cnt[0]));
453 if (mseq->bottom_field_pic_order_in_frame_present_flag &&
454 !mslice->field_pic_flag) {
455 se(vslice_var(delta_pic_order_cnt[1]));
456 }
457 }
458
459 if (vpic->pic_fields.bits.redundant_pic_cnt_present_flag) {
460 ue(mslice_var(redundant_pic_cnt));
461 }
462
463 if (vslice->slice_type == SLICE_TYPE_B) {
464 u(1, vslice_var(direct_spatial_mv_pred_flag));
465 }
466
467 if (vslice->slice_type == SLICE_TYPE_P ||
468 vslice->slice_type == SLICE_TYPE_SP ||
469 vslice->slice_type == SLICE_TYPE_B) {
470 u(1, vslice_var(num_ref_idx_active_override_flag));
471 if (vslice->num_ref_idx_active_override_flag) {
472 ue(vslice_var(num_ref_idx_l0_active_minus1));
473 if (vslice->slice_type == SLICE_TYPE_B)
474 ue(vslice_var(num_ref_idx_l1_active_minus1));
475 }
476 }
477
478 if (mslice->nal_unit_type == 20 || mslice->nal_unit_type == 21) {
479 av_assert0(0 && "no MVC support");
480 } else {
481 if (vslice->slice_type % 5 != 2 && vslice->slice_type % 5 != 4) {
482 u(1, mslice_var(ref_pic_list_modification_flag_l0));
483 if (mslice->ref_pic_list_modification_flag_l0) {
484 av_assert0(0 && "ref pic list modification");
485 }
486 }
487 if (vslice->slice_type % 5 == 1) {
488 u(1, mslice_var(ref_pic_list_modification_flag_l1));
489 if (mslice->ref_pic_list_modification_flag_l1) {
490 av_assert0(0 && "ref pic list modification");
491 }
492 }
493 }
494
495 if ((vpic->pic_fields.bits.weighted_pred_flag &&
496 (vslice->slice_type == SLICE_TYPE_P ||
497 vslice->slice_type == SLICE_TYPE_SP)) ||
498 (vpic->pic_fields.bits.weighted_bipred_idc == 1 &&
499 vslice->slice_type == SLICE_TYPE_B)) {
500 av_assert0(0 && "prediction weights not supported");
501 }
502
503 av_assert0(mslice->nal_ref_idc > 0 ==
504 vpic->pic_fields.bits.reference_pic_flag);
505 if (mslice->nal_ref_idc != 0) {
506 if (vpic->pic_fields.bits.idr_pic_flag) {
507 u(1, mslice_var(no_output_of_prior_pics_flag));
508 u(1, mslice_var(long_term_reference_flag));
509 } else {
510 u(1, mslice_var(adaptive_ref_pic_marking_mode_flag));
511 if (mslice->adaptive_ref_pic_marking_mode_flag) {
512 av_assert0(0 && "MMCOs not supported");
513 }
514 }
515 }
516
517 if (vpic->pic_fields.bits.entropy_coding_mode_flag &&
518 vslice->slice_type != SLICE_TYPE_I &&
519 vslice->slice_type != SLICE_TYPE_SI) {
520 ue(vslice_var(cabac_init_idc));
521 }
522
523 se(vslice_var(slice_qp_delta));
524 if (vslice->slice_type == SLICE_TYPE_SP ||
525 vslice->slice_type == SLICE_TYPE_SI) {
526 if (vslice->slice_type == SLICE_TYPE_SP)
527 u(1, mslice_var(sp_for_switch_flag));
528 se(mslice_var(slice_qs_delta));
529 }
530
531 if (vpic->pic_fields.bits.deblocking_filter_control_present_flag) {
532 ue(vslice_var(disable_deblocking_filter_idc));
533 if (vslice->disable_deblocking_filter_idc != 1) {
534 se(vslice_var(slice_alpha_c0_offset_div2));
535 se(vslice_var(slice_beta_offset_div2));
536 }
537 }
538
539 if (mseq->num_slice_groups_minus1 > 0 &&
540 mseq->slice_group_map_type >= 3 && mseq->slice_group_map_type <= 5) {
541 av_assert0(0 && "slice groups not supported");
542 }
543
544 // No alignment - this need not be a byte boundary.
545}
546
48e2967c
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547static void vaapi_encode_h264_write_buffering_period(PutBitContext *pbc,
548 VAAPIEncodeContext *ctx,
549 VAAPIEncodePicture *pic)
550{
551 VAAPIEncodeH264Context *priv = ctx->priv_data;
552 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
553 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
554 int i;
555
556 ue(vpic_var(seq_parameter_set_id));
557
558 if (mseq->nal_hrd_parameters_present_flag) {
559 for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
560 u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
561 mseq_var(initial_cpb_removal_delay));
562 u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
563 mseq_var(initial_cpb_removal_delay_offset));
564 }
565 }
566 if (mseq->vcl_hrd_parameters_present_flag) {
567 av_assert0(0 && "vcl hrd parameters not supported");
568 }
569}
570
571static void vaapi_encode_h264_write_pic_timing(PutBitContext *pbc,
572 VAAPIEncodeContext *ctx,
573 VAAPIEncodePicture *pic)
574{
575 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
576 VAAPIEncodeH264Context *priv = ctx->priv_data;
577 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
578 int i, num_clock_ts;
579
580 if (mseq->nal_hrd_parameters_present_flag ||
581 mseq->vcl_hrd_parameters_present_flag) {
582 u(mseq->cpb_removal_delay_length_minus1 + 1,
583 2 * vseq->num_units_in_tick * priv->cpb_delay,
584 cpb_removal_delay);
585 u(mseq->dpb_output_delay_length_minus1 + 1,
586 2 * vseq->num_units_in_tick * priv->dpb_delay,
587 dpb_output_delay);
588 }
589 if (mseq->pic_struct_present_flag) {
590 u(4, mseq_var(pic_struct));
591 num_clock_ts = (mseq->pic_struct <= 2 ? 1 :
592 mseq->pic_struct <= 4 ? 2 :
593 mseq->pic_struct <= 8 ? 3 : 0);
594 for (i = 0; i < num_clock_ts; i++) {
595 u(1, 0, clock_timestamp_flag[i]);
596 // No full timestamp information.
597 }
598 }
599}
600
02fa1ad9
MT
601static void vaapi_encode_h264_write_identifier(PutBitContext *pbc,
602 VAAPIEncodeContext *ctx,
603 VAAPIEncodePicture *pic)
604{
605 const char *lavc = LIBAVCODEC_IDENT;
606 const char *vaapi = VA_VERSION_S;
607 const char *driver = vaQueryVendorString(ctx->hwctx->display);
608 char tmp[256];
609 int i;
610
611 // Random (version 4) ISO 11578 UUID.
612 uint8_t uuid[16] = {
613 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
614 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
615 };
616
617 for (i = 0; i < 16; i++)
618 u(8, uuid[i], uuid_iso_iec_11578);
619
620 snprintf(tmp, sizeof(tmp), "%s / VAAPI %s / %s", lavc, vaapi, driver);
621 for (i = 0; i < sizeof(tmp) && tmp[i]; i++)
622 u(8, tmp[i], user_data_payload_byte);
623}
624
48e2967c
MT
625static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
626 VAAPIEncodeContext *ctx,
627 VAAPIEncodePicture *pic)
628{
629 VAAPIEncodeH264Context *priv = ctx->priv_data;
630 PutBitContext payload_bits;
631 char payload[256];
632 int payload_type, payload_size, i;
633 void (*write_payload)(PutBitContext *pbc,
634 VAAPIEncodeContext *ctx,
635 VAAPIEncodePicture *pic) = NULL;
636
5c2fb561 637 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SEI, 0);
48e2967c
MT
638
639 for (payload_type = 0; payload_type < 64; payload_type++) {
640 switch (payload_type) {
641 case SEI_TYPE_BUFFERING_PERIOD:
642 if (!priv->send_timing_sei ||
643 pic->type != PICTURE_TYPE_IDR)
644 continue;
645 write_payload = &vaapi_encode_h264_write_buffering_period;
646 break;
647 case SEI_TYPE_PIC_TIMING:
648 if (!priv->send_timing_sei)
649 continue;
650 write_payload = &vaapi_encode_h264_write_pic_timing;
651 break;
02fa1ad9
MT
652 case SEI_TYPE_USER_DATA_UNREGISTERED:
653 if (pic->encode_order != 0)
654 continue;
655 write_payload = &vaapi_encode_h264_write_identifier;
656 break;
48e2967c
MT
657 default:
658 continue;
659 }
660
661 init_put_bits(&payload_bits, payload, sizeof(payload));
662 write_payload(&payload_bits, ctx, pic);
663 if (put_bits_count(&payload_bits) & 7) {
664 write_u(&payload_bits, 1, 1, bit_equal_to_one);
665 while (put_bits_count(&payload_bits) & 7)
666 write_u(&payload_bits, 1, 0, bit_equal_to_zero);
667 }
668 payload_size = put_bits_count(&payload_bits) / 8;
669 flush_put_bits(&payload_bits);
670
671 u(8, payload_type, last_payload_type_byte);
672 u(8, payload_size, last_payload_size_byte);
673 for (i = 0; i < payload_size; i++)
674 u(8, payload[i] & 0xff, sei_payload);
675 }
676
677 vaapi_encode_h264_write_trailing_rbsp(pbc);
678}
679
2c62fcdf
MT
680static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
681 char *data, size_t *data_len)
682{
683 VAAPIEncodeContext *ctx = avctx->priv_data;
684 PutBitContext pbc;
685 char tmp[256];
686 int err;
687 size_t nal_len, bit_len, bit_pos, next_len;
688
689 bit_len = *data_len;
690 bit_pos = 0;
691
692 init_put_bits(&pbc, tmp, sizeof(tmp));
693 vaapi_encode_h264_write_sps(&pbc, ctx);
694 nal_len = put_bits_count(&pbc);
695 flush_put_bits(&pbc);
696
697 next_len = bit_len - bit_pos;
698 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
699 &next_len,
700 tmp, nal_len);
701 if (err < 0)
702 return err;
703 bit_pos += next_len;
704
705 init_put_bits(&pbc, tmp, sizeof(tmp));
706 vaapi_encode_h264_write_pps(&pbc, ctx);
707 nal_len = put_bits_count(&pbc);
708 flush_put_bits(&pbc);
709
710 next_len = bit_len - bit_pos;
711 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
712 &next_len,
713 tmp, nal_len);
714 if (err < 0)
715 return err;
716 bit_pos += next_len;
717
718 *data_len = bit_pos;
719 return 0;
720}
721
722static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
723 VAAPIEncodePicture *pic,
724 VAAPIEncodeSlice *slice,
725 char *data, size_t *data_len)
726{
727 VAAPIEncodeContext *ctx = avctx->priv_data;
728 PutBitContext pbc;
729 char tmp[256];
730 size_t header_len;
731
732 init_put_bits(&pbc, tmp, sizeof(tmp));
733 vaapi_encode_h264_write_slice_header2(&pbc, ctx, pic, slice);
734 header_len = put_bits_count(&pbc);
735 flush_put_bits(&pbc);
736
737 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
738 tmp, header_len);
739}
740
48e2967c
MT
741static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
742 VAAPIEncodePicture *pic,
743 int index, int *type,
744 char *data, size_t *data_len)
745{
746 VAAPIEncodeContext *ctx = avctx->priv_data;
747 PutBitContext pbc;
748 char tmp[256];
749 size_t header_len;
750
751 if (index == 0 && ctx->va_rc_mode == VA_RC_CBR) {
752 *type = VAEncPackedHeaderH264_SEI;
753
754 init_put_bits(&pbc, tmp, sizeof(tmp));
755 vaapi_encode_h264_write_sei(&pbc, ctx, pic);
756 header_len = put_bits_count(&pbc);
757 flush_put_bits(&pbc);
758
759 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
760 tmp, header_len);
761
762 } else {
763 return AVERROR_EOF;
764 }
765}
766
2c62fcdf
MT
767static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
768{
769 VAAPIEncodeContext *ctx = avctx->priv_data;
770 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
771 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
772 VAAPIEncodeH264Context *priv = ctx->priv_data;
773 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
774 int i;
775
776 {
777 vseq->seq_parameter_set_id = 0;
778
779 vseq->level_idc = avctx->level;
780
956a5412 781 vseq->max_num_ref_frames = 1 + (avctx->max_b_frames > 0);
2c62fcdf
MT
782
783 vseq->picture_width_in_mbs = priv->mb_width;
784 vseq->picture_height_in_mbs = priv->mb_height;
785
786 vseq->seq_fields.bits.chroma_format_idc = 1;
787 vseq->seq_fields.bits.frame_mbs_only_flag = 1;
788 vseq->seq_fields.bits.direct_8x8_inference_flag = 1;
789 vseq->seq_fields.bits.log2_max_frame_num_minus4 = 4;
790 vseq->seq_fields.bits.pic_order_cnt_type = 0;
791
80a5d051
MT
792 if (avctx->width != ctx->surface_width ||
793 avctx->height != ctx->surface_height) {
2c62fcdf
MT
794 vseq->frame_cropping_flag = 1;
795
796 vseq->frame_crop_left_offset = 0;
797 vseq->frame_crop_right_offset =
80a5d051 798 (ctx->surface_width - avctx->width) / 2;
2c62fcdf
MT
799 vseq->frame_crop_top_offset = 0;
800 vseq->frame_crop_bottom_offset =
80a5d051 801 (ctx->surface_height - avctx->height) / 2;
2c62fcdf
MT
802 } else {
803 vseq->frame_cropping_flag = 0;
804 }
6e8f66fc 805
081961f8
MT
806 vseq->vui_parameters_present_flag = 1;
807 if (avctx->sample_aspect_ratio.num != 0) {
808 vseq->vui_fields.bits.aspect_ratio_info_present_flag = 1;
809 // There is a large enum of these which we could support
810 // individually rather than using the generic X/Y form?
811 if (avctx->sample_aspect_ratio.num ==
812 avctx->sample_aspect_ratio.den) {
813 vseq->aspect_ratio_idc = 1;
814 } else {
815 vseq->aspect_ratio_idc = 255; // Extended SAR.
816 vseq->sar_width = avctx->sample_aspect_ratio.num;
817 vseq->sar_height = avctx->sample_aspect_ratio.den;
818 }
819 }
820 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
821 avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
822 avctx->colorspace != AVCOL_SPC_UNSPECIFIED) {
823 mseq->video_signal_type_present_flag = 1;
824 mseq->video_format = 5; // Unspecified.
825 mseq->video_full_range_flag = 0;
826 mseq->colour_description_present_flag = 1;
827 // These enums are derived from the standard and hence
828 // we can just use the values directly.
829 mseq->colour_primaries = avctx->color_primaries;
830 mseq->transfer_characteristics = avctx->color_trc;
831 mseq->matrix_coefficients = avctx->colorspace;
832 }
833
6e8f66fc 834 vseq->bits_per_second = avctx->bit_rate;
081961f8
MT
835
836 vseq->vui_fields.bits.timing_info_present_flag = 1;
6e8f66fc 837 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
17a0f948
MT
838 vseq->num_units_in_tick = avctx->framerate.den;
839 vseq->time_scale = 2 * avctx->framerate.num;
081961f8 840 mseq->fixed_frame_rate_flag = 1;
6e8f66fc
MT
841 } else {
842 vseq->num_units_in_tick = avctx->time_base.num;
843 vseq->time_scale = 2 * avctx->time_base.den;
081961f8 844 mseq->fixed_frame_rate_flag = 0;
6e8f66fc
MT
845 }
846
48e2967c
MT
847 if (ctx->va_rc_mode == VA_RC_CBR) {
848 priv->send_timing_sei = 1;
849 mseq->nal_hrd_parameters_present_flag = 1;
850
851 mseq->cpb_cnt_minus1 = 0;
852
853 // Try to scale these to a sensible range so that the
854 // golomb encode of the value is not overlong.
855 mseq->bit_rate_scale =
3a9662af 856 av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);
48e2967c 857 mseq->bit_rate_value_minus1[0] =
3a9662af 858 (avctx->bit_rate >> mseq->bit_rate_scale + 6) - 1;
48e2967c
MT
859
860 mseq->cpb_size_scale =
80a5d051 861 av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);
48e2967c 862 mseq->cpb_size_value_minus1[0] =
80a5d051 863 (ctx->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale + 4) - 1;
48e2967c
MT
864
865 // CBR mode isn't actually available here, despite naming.
866 mseq->cbr_flag[0] = 0;
867
868 mseq->initial_cpb_removal_delay_length_minus1 = 23;
869 mseq->cpb_removal_delay_length_minus1 = 23;
870 mseq->dpb_output_delay_length_minus1 = 7;
871 mseq->time_offset_length = 0;
872
873 // This calculation can easily overflow 32 bits.
874 mseq->initial_cpb_removal_delay = 90000 *
80a5d051
MT
875 (uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /
876 ctx->hrd_params.hrd.buffer_size;
48e2967c
MT
877
878 mseq->initial_cpb_removal_delay_offset = 0;
879 } else {
880 priv->send_timing_sei = 0;
881 mseq->nal_hrd_parameters_present_flag = 0;
882 }
883
6e8f66fc
MT
884 vseq->intra_period = ctx->p_per_i * (ctx->b_per_p + 1);
885 vseq->intra_idr_period = vseq->intra_period;
886 vseq->ip_period = ctx->b_per_p + 1;
2c62fcdf
MT
887 }
888
889 {
890 vpic->CurrPic.picture_id = VA_INVALID_ID;
891 vpic->CurrPic.flags = VA_PICTURE_H264_INVALID;
892
893 for (i = 0; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
894 vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
895 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
896 }
897
898 vpic->coded_buf = VA_INVALID_ID;
899
900 vpic->pic_parameter_set_id = 0;
901 vpic->seq_parameter_set_id = 0;
902
903 vpic->num_ref_idx_l0_active_minus1 = 0;
904 vpic->num_ref_idx_l1_active_minus1 = 0;
905
906 vpic->pic_fields.bits.entropy_coding_mode_flag =
907 ((avctx->profile & 0xff) != 66);
908 vpic->pic_fields.bits.weighted_pred_flag = 0;
909 vpic->pic_fields.bits.weighted_bipred_idc = 0;
910 vpic->pic_fields.bits.transform_8x8_mode_flag =
911 ((avctx->profile & 0xff) >= 100);
912
913 vpic->pic_init_qp = priv->fixed_qp_idr;
914 }
915
916 {
917 mseq->profile_idc = avctx->profile & 0xff;
918
919 if (avctx->profile & FF_PROFILE_H264_CONSTRAINED)
920 mseq->constraint_set1_flag = 1;
921 if (avctx->profile & FF_PROFILE_H264_INTRA)
922 mseq->constraint_set3_flag = 1;
923 }
924
925 return 0;
926}
927
928static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
929 VAAPIEncodePicture *pic)
930{
931 VAAPIEncodeContext *ctx = avctx->priv_data;
932 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
933 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
934 VAAPIEncodeH264Context *priv = ctx->priv_data;
935 int i;
936
937 if (pic->type == PICTURE_TYPE_IDR) {
938 av_assert0(pic->display_order == pic->encode_order);
b51c7c6b
MT
939 vpic->frame_num = 0;
940 priv->next_frame_num = 1;
48e2967c 941 priv->cpb_delay = 0;
2c62fcdf 942 } else {
b51c7c6b
MT
943 vpic->frame_num = priv->next_frame_num;
944 if (pic->type != PICTURE_TYPE_B) {
945 // nal_ref_idc != 0
946 ++priv->next_frame_num;
947 }
48e2967c 948 ++priv->cpb_delay;
2c62fcdf 949 }
48e2967c 950 priv->dpb_delay = pic->display_order - pic->encode_order + 1;
2c62fcdf 951
b51c7c6b 952 vpic->frame_num = vpic->frame_num &
2c62fcdf
MT
953 ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1);
954
955 vpic->CurrPic.picture_id = pic->recon_surface;
956 vpic->CurrPic.frame_idx = vpic->frame_num;
957 vpic->CurrPic.flags = 0;
958 vpic->CurrPic.TopFieldOrderCnt = pic->display_order;
959 vpic->CurrPic.BottomFieldOrderCnt = pic->display_order;
960
961 for (i = 0; i < pic->nb_refs; i++) {
962 VAAPIEncodePicture *ref = pic->refs[i];
b51c7c6b 963 av_assert0(ref && ref->encode_order < pic->encode_order);
2c62fcdf 964 vpic->ReferenceFrames[i].picture_id = ref->recon_surface;
b51c7c6b 965 vpic->ReferenceFrames[i].frame_idx = ref->encode_order;
2c62fcdf
MT
966 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
967 vpic->ReferenceFrames[i].TopFieldOrderCnt = ref->display_order;
968 vpic->ReferenceFrames[i].BottomFieldOrderCnt = ref->display_order;
969 }
970 for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
971 vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
972 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
973 }
974
975 vpic->coded_buf = pic->output_buffer;
976
977 vpic->pic_fields.bits.idr_pic_flag = (pic->type == PICTURE_TYPE_IDR);
978 vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
979
980 pic->nb_slices = 1;
981
982 return 0;
983}
984
985static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
986 VAAPIEncodePicture *pic,
987 VAAPIEncodeSlice *slice)
988{
989 VAAPIEncodeContext *ctx = avctx->priv_data;
990 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
991 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
992 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
993 VAAPIEncodeH264Context *priv = ctx->priv_data;
994 VAAPIEncodeH264Slice *pslice;
995 VAAPIEncodeH264MiscSliceParams *mslice;
996 int i;
997
998 slice->priv_data = av_mallocz(sizeof(*pslice));
999 if (!slice->priv_data)
1000 return AVERROR(ENOMEM);
1001 pslice = slice->priv_data;
1002 mslice = &pslice->misc_slice_params;
1003
1004 if (pic->type == PICTURE_TYPE_IDR)
5c2fb561 1005 mslice->nal_unit_type = H264_NAL_IDR_SLICE;
2c62fcdf 1006 else
5c2fb561 1007 mslice->nal_unit_type = H264_NAL_SLICE;
2c62fcdf
MT
1008
1009 switch (pic->type) {
1010 case PICTURE_TYPE_IDR:
1011 vslice->slice_type = SLICE_TYPE_I;
1012 mslice->nal_ref_idc = 3;
1013 break;
1014 case PICTURE_TYPE_I:
1015 vslice->slice_type = SLICE_TYPE_I;
1016 mslice->nal_ref_idc = 2;
1017 break;
1018 case PICTURE_TYPE_P:
1019 vslice->slice_type = SLICE_TYPE_P;
1020 mslice->nal_ref_idc = 1;
1021 break;
1022 case PICTURE_TYPE_B:
1023 vslice->slice_type = SLICE_TYPE_B;
1024 mslice->nal_ref_idc = 0;
1025 break;
1026 default:
1027 av_assert0(0 && "invalid picture type");
1028 }
1029
1030 // Only one slice per frame.
1031 vslice->macroblock_address = 0;
1032 vslice->num_macroblocks = priv->mb_width * priv->mb_height;
1033
1034 vslice->macroblock_info = VA_INVALID_ID;
1035
1036 vslice->pic_parameter_set_id = vpic->pic_parameter_set_id;
1037 vslice->idr_pic_id = priv->idr_pic_count++;
1038
1039 vslice->pic_order_cnt_lsb = pic->display_order &
1040 ((1 << (4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4)) - 1);
1041
1042 for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
1043 vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
1044 vslice->RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1045 vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
1046 vslice->RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1047 }
1048
1049 av_assert0(pic->nb_refs <= 2);
1050 if (pic->nb_refs >= 1) {
41ed7ab4 1051 // Backward reference for P- or B-frame.
2c62fcdf
MT
1052 av_assert0(pic->type == PICTURE_TYPE_P ||
1053 pic->type == PICTURE_TYPE_B);
1054
1055 vslice->num_ref_idx_l0_active_minus1 = 0;
1056 vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
1057 }
1058 if (pic->nb_refs >= 2) {
41ed7ab4 1059 // Forward reference for B-frame.
2c62fcdf
MT
1060 av_assert0(pic->type == PICTURE_TYPE_B);
1061
1062 vslice->num_ref_idx_l1_active_minus1 = 0;
1063 vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
1064 }
1065
1066 if (pic->type == PICTURE_TYPE_B)
1067 vslice->slice_qp_delta = priv->fixed_qp_b - vpic->pic_init_qp;
1068 else if (pic->type == PICTURE_TYPE_P)
1069 vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp;
1070 else
1071 vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp;
1072
1073 vslice->direct_spatial_mv_pred_flag = 1;
1074
1075 return 0;
1076}
1077
80a5d051 1078static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
6e8f66fc
MT
1079{
1080 VAAPIEncodeContext *ctx = avctx->priv_data;
1081 VAAPIEncodeH264Context *priv = ctx->priv_data;
80a5d051 1082 VAAPIEncodeH264Options *opt = ctx->codec_options;
6e8f66fc 1083
80a5d051
MT
1084 priv->mb_width = FFALIGN(avctx->width, 16) / 16;
1085 priv->mb_height = FFALIGN(avctx->height, 16) / 16;
1086
1087 if (ctx->va_rc_mode == VA_RC_CQP) {
1088 priv->fixed_qp_p = opt->qp;
1089 if (avctx->i_quant_factor > 0.0)
1090 priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
1091 avctx->i_quant_offset) + 0.5);
1092 else
1093 priv->fixed_qp_idr = priv->fixed_qp_p;
1094 if (avctx->b_quant_factor > 0.0)
1095 priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
1096 avctx->b_quant_offset) + 0.5);
1097 else
1098 priv->fixed_qp_b = priv->fixed_qp_p;
1099
1100 av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1101 "%d / %d / %d for IDR- / P- / B-frames.\n",
1102 priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1103
1104 } else if (ctx->va_rc_mode == VA_RC_CBR) {
1105 // These still need to be set for pic_init_qp/slice_qp_delta.
1106 priv->fixed_qp_idr = 26;
1107 priv->fixed_qp_p = 26;
1108 priv->fixed_qp_b = 26;
1109
1110 av_log(avctx, AV_LOG_DEBUG, "Using constant-bitrate = %d bps.\n",
1111 avctx->bit_rate);
6e8f66fc 1112
80a5d051
MT
1113 } else {
1114 av_assert0(0 && "Invalid RC mode.");
1115 }
6e8f66fc 1116
80a5d051
MT
1117 if (opt->quality > 0) {
1118#if VA_CHECK_VERSION(0, 36, 0)
1119 priv->quality_params.misc.type =
1120 VAEncMiscParameterTypeQualityLevel;
1121 priv->quality_params.quality.quality_level = opt->quality;
1122
1123 ctx->global_params[ctx->nb_global_params] =
1124 &priv->quality_params.misc;
1125 ctx->global_params_size[ctx->nb_global_params++] =
1126 sizeof(priv->quality_params);
1127#else
1128 av_log(avctx, AV_LOG_WARNING, "The encode quality option is not "
1129 "supported with this VAAPI version.\n");
1130#endif
1131 }
6e8f66fc 1132
6e8f66fc
MT
1133 return 0;
1134}
1135
80a5d051
MT
1136static const VAAPIEncodeType vaapi_encode_type_h264 = {
1137 .priv_data_size = sizeof(VAAPIEncodeH264Context),
1138
1139 .configure = &vaapi_encode_h264_configure,
1140
1141 .sequence_params_size = sizeof(VAEncSequenceParameterBufferH264),
1142 .init_sequence_params = &vaapi_encode_h264_init_sequence_params,
1143
1144 .picture_params_size = sizeof(VAEncPictureParameterBufferH264),
1145 .init_picture_params = &vaapi_encode_h264_init_picture_params,
1146
1147 .slice_params_size = sizeof(VAEncSliceParameterBufferH264),
1148 .init_slice_params = &vaapi_encode_h264_init_slice_params,
1149
1150 .sequence_header_type = VAEncPackedHeaderSequence,
1151 .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
1152
1153 .slice_header_type = VAEncPackedHeaderH264_Slice,
1154 .write_slice_header = &vaapi_encode_h264_write_slice_header,
1155
1156 .write_extra_header = &vaapi_encode_h264_write_extra_header,
1157};
1158
1159static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
2c62fcdf 1160{
80a5d051
MT
1161 VAAPIEncodeContext *ctx = avctx->priv_data;
1162 VAAPIEncodeH264Options *opt =
1163 (VAAPIEncodeH264Options*)ctx->codec_options_data;
f6b85523 1164
80a5d051 1165 ctx->codec = &vaapi_encode_type_h264;
2c62fcdf
MT
1166
1167 switch (avctx->profile) {
1168 case FF_PROFILE_H264_CONSTRAINED_BASELINE:
1169 ctx->va_profile = VAProfileH264ConstrainedBaseline;
1170 break;
1171 case FF_PROFILE_H264_BASELINE:
1172 ctx->va_profile = VAProfileH264Baseline;
1173 break;
1174 case FF_PROFILE_H264_MAIN:
1175 ctx->va_profile = VAProfileH264Main;
1176 break;
1177 case FF_PROFILE_H264_EXTENDED:
1178 av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
1179 "is not supported.\n");
1180 return AVERROR_PATCHWELCOME;
1181 case FF_PROFILE_UNKNOWN:
1182 case FF_PROFILE_H264_HIGH:
1183 ctx->va_profile = VAProfileH264High;
1184 break;
1185 case FF_PROFILE_H264_HIGH_10:
1186 case FF_PROFILE_H264_HIGH_10_INTRA:
1187 av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
1188 "are not supported.\n");
1189 return AVERROR_PATCHWELCOME;
1190 case FF_PROFILE_H264_HIGH_422:
1191 case FF_PROFILE_H264_HIGH_422_INTRA:
1192 case FF_PROFILE_H264_HIGH_444:
1193 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
1194 case FF_PROFILE_H264_HIGH_444_INTRA:
1195 case FF_PROFILE_H264_CAVLC_444:
1196 av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
1197 "are not supported.\n");
1198 return AVERROR_PATCHWELCOME;
1199 default:
1200 av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
1201 avctx->profile);
1202 return AVERROR(EINVAL);
1203 }
a86aa160 1204 if (opt->low_power) {
80a5d051 1205#if VA_CHECK_VERSION(0, 39, 2)
a86aa160
MT
1206 ctx->va_entrypoint = VAEntrypointEncSliceLP;
1207#else
1208 av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
1209 "supported with this VAAPI version.\n");
1210 return AVERROR(EINVAL);
1211#endif
1212 } else {
1213 ctx->va_entrypoint = VAEntrypointEncSlice;
1214 }
2c62fcdf 1215
80a5d051
MT
1216 // Only 8-bit encode is supported.
1217 ctx->va_rt_format = VA_RT_FORMAT_YUV420;
f6b85523 1218
80a5d051 1219 if (avctx->bit_rate > 0)
6e8f66fc 1220 ctx->va_rc_mode = VA_RC_CBR;
80a5d051 1221 else
6e8f66fc 1222 ctx->va_rc_mode = VA_RC_CQP;
2c62fcdf 1223
892bbbcd
MT
1224 ctx->va_packed_headers =
1225 VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
1226 VA_ENC_PACKED_HEADER_SLICE | // Slice headers.
1227 VA_ENC_PACKED_HEADER_MISC; // SEI.
fcf536b1 1228
80a5d051
MT
1229 ctx->surface_width = FFALIGN(avctx->width, 16);
1230 ctx->surface_height = FFALIGN(avctx->height, 16);
fcf536b1 1231
80a5d051 1232 return ff_vaapi_encode_init(avctx);
2c62fcdf
MT
1233}
1234
9629701c
MT
1235#define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
1236 offsetof(VAAPIEncodeH264Options, x))
1237#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1238static const AVOption vaapi_encode_h264_options[] = {
41ed7ab4 1239 { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
9629701c 1240 OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
fcf536b1 1241 { "quality", "Set encode quality (trades off against speed, higher is faster)",
a86aa160
MT
1242 OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
1243 { "low_power", "Use low-power encoding mode (experimental: only supported "
1244 "on some platforms, does not support all features)",
1245 OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
9629701c
MT
1246 { NULL },
1247};
1248
2c62fcdf
MT
1249static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1250 { "profile", "100" },
1251 { "level", "51" },
1252 { "b", "0" },
1253 { "bf", "2" },
1254 { "g", "120" },
2c62fcdf
MT
1255 { "i_qfactor", "1.0" },
1256 { "i_qoffset", "0.0" },
1257 { "b_qfactor", "1.2" },
1258 { "b_qoffset", "0.0" },
1259 { NULL },
1260};
1261
1262static const AVClass vaapi_encode_h264_class = {
1263 .class_name = "h264_vaapi",
1264 .item_name = av_default_item_name,
9629701c 1265 .option = vaapi_encode_h264_options,
2c62fcdf
MT
1266 .version = LIBAVUTIL_VERSION_INT,
1267};
1268
1269AVCodec ff_h264_vaapi_encoder = {
1270 .name = "h264_vaapi",
1271 .long_name = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1272 .type = AVMEDIA_TYPE_VIDEO,
1273 .id = AV_CODEC_ID_H264,
9629701c
MT
1274 .priv_data_size = (sizeof(VAAPIEncodeContext) +
1275 sizeof(VAAPIEncodeH264Options)),
2c62fcdf
MT
1276 .init = &vaapi_encode_h264_init,
1277 .encode2 = &ff_vaapi_encode2,
1278 .close = &ff_vaapi_encode_close,
1279 .priv_class = &vaapi_encode_h264_class,
1280 .capabilities = AV_CODEC_CAP_DELAY,
1281 .defaults = vaapi_encode_h264_defaults,
1282 .pix_fmts = (const enum AVPixelFormat[]) {
1283 AV_PIX_FMT_VAAPI,
1284 AV_PIX_FMT_NONE,
1285 },
1286};