2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <va/va_enc_hevc.h>
22 #include "libavutil/avassert.h"
23 #include "libavutil/internal.h"
24 #include "libavutil/opt.h"
25 #include "libavutil/pixfmt.h"
31 #include "vaapi_encode.h"
32 #include "vaapi_encode_h26x.h"
35 #define MAX_ST_REF_PIC_SETS 32
36 #define MAX_DPB_PICS 16
40 typedef struct VAAPIEncodeH265STRPS {
41 char inter_ref_pic_set_prediction_flag;
43 unsigned int num_negative_pics;
44 unsigned int num_positive_pics;
46 unsigned int delta_poc_s0_minus1[MAX_DPB_PICS];
47 char used_by_curr_pic_s0_flag[MAX_DPB_PICS];
49 unsigned int delta_poc_s1_minus1[MAX_DPB_PICS];
50 char used_by_curr_pic_s1_flag[MAX_DPB_PICS];
51 } VAAPIEncodeH265STRPS;
53 // This structure contains all possibly-useful per-sequence syntax elements
54 // which are not already contained in the various VAAPI structures.
55 typedef struct VAAPIEncodeH265MiscSequenceParams {
58 unsigned int video_parameter_set_id;
59 unsigned int seq_parameter_set_id;
62 unsigned int vps_max_layers_minus1;
63 unsigned int vps_max_sub_layers_minus1;
64 char vps_temporal_id_nesting_flag;
65 unsigned int vps_max_layer_id;
66 unsigned int vps_num_layer_sets_minus1;
67 unsigned int sps_max_sub_layers_minus1;
68 char sps_temporal_id_nesting_flag;
69 char layer_id_included_flag[MAX_LAYERS][64];
71 // Profile/tier/level parameters.
72 char general_profile_compatibility_flag[32];
73 char general_progressive_source_flag;
74 char general_interlaced_source_flag;
75 char general_non_packed_constraint_flag;
76 char general_frame_only_constraint_flag;
77 char general_inbld_flag;
79 // Decode/display ordering parameters.
80 unsigned int log2_max_pic_order_cnt_lsb_minus4;
81 char vps_sub_layer_ordering_info_present_flag;
82 unsigned int vps_max_dec_pic_buffering_minus1[MAX_LAYERS];
83 unsigned int vps_max_num_reorder_pics[MAX_LAYERS];
84 unsigned int vps_max_latency_increase_plus1[MAX_LAYERS];
85 char sps_sub_layer_ordering_info_present_flag;
86 unsigned int sps_max_dec_pic_buffering_minus1[MAX_LAYERS];
87 unsigned int sps_max_num_reorder_pics[MAX_LAYERS];
88 unsigned int sps_max_latency_increase_plus1[MAX_LAYERS];
90 // Timing information.
91 char vps_timing_info_present_flag;
92 unsigned int vps_num_units_in_tick;
93 unsigned int vps_time_scale;
94 char vps_poc_proportional_to_timing_flag;
95 unsigned int vps_num_ticks_poc_diff_minus1;
97 // Cropping information.
98 char conformance_window_flag;
99 unsigned int conf_win_left_offset;
100 unsigned int conf_win_right_offset;
101 unsigned int conf_win_top_offset;
102 unsigned int conf_win_bottom_offset;
104 // Short-term reference picture sets.
105 unsigned int num_short_term_ref_pic_sets;
106 VAAPIEncodeH265STRPS st_ref_pic_set[MAX_ST_REF_PIC_SETS];
108 // Long-term reference pictures.
109 char long_term_ref_pics_present_flag;
110 unsigned int num_long_term_ref_pics_sps;
112 unsigned int lt_ref_pic_poc_lsb_sps;
113 char used_by_curr_pic_lt_sps_flag;
116 // Deblocking filter control.
117 char deblocking_filter_control_present_flag;
118 char deblocking_filter_override_enabled_flag;
119 char pps_deblocking_filter_disabled_flag;
120 int pps_beta_offset_div2;
121 int pps_tc_offset_div2;
123 // Video Usability Information.
124 char vui_parameters_present_flag;
125 char aspect_ratio_info_present_flag;
126 unsigned int aspect_ratio_idc;
127 unsigned int sar_width;
128 unsigned int sar_height;
129 char video_signal_type_present_flag;
130 unsigned int video_format;
131 char video_full_range_flag;
132 char colour_description_present_flag;
133 unsigned int colour_primaries;
134 unsigned int transfer_characteristics;
135 unsigned int matrix_coeffs;
138 char uniform_spacing_flag;
139 char output_flag_present_flag;
140 char cabac_init_present_flag;
141 unsigned int num_extra_slice_header_bits;
142 char lists_modification_present_flag;
143 char pps_slice_chroma_qp_offsets_present_flag;
144 char pps_slice_chroma_offset_list_enabled_flag;
145 } VAAPIEncodeH265MiscSequenceParams;
147 // This structure contains all possibly-useful per-slice syntax elements
148 // which are not already contained in the various VAAPI structures.
149 typedef struct VAAPIEncodeH265MiscSliceParams {
151 char first_slice_segment_in_pic_flag;
152 unsigned int slice_segment_address;
154 // Short-term reference picture sets.
155 char short_term_ref_pic_set_sps_flag;
156 unsigned int short_term_ref_pic_idx;
157 VAAPIEncodeH265STRPS st_ref_pic_set;
159 // Deblocking filter.
160 char deblocking_filter_override_flag;
163 char slice_reserved_flag[8];
164 char no_output_of_prior_pics_flag;
165 char pic_output_flag;
166 } VAAPIEncodeH265MiscSliceParams;
168 typedef struct VAAPIEncodeH265Slice {
169 VAAPIEncodeH265MiscSliceParams misc_slice_params;
171 int64_t pic_order_cnt;
172 } VAAPIEncodeH265Slice;
174 typedef struct VAAPIEncodeH265Context {
175 VAAPIEncodeH265MiscSequenceParams misc_sequence_params;
177 unsigned int ctu_width;
178 unsigned int ctu_height;
184 int64_t last_idr_frame;
186 // Rate control configuration.
188 VAEncMiscParameterBuffer misc;
189 VAEncMiscParameterRateControl rc;
192 VAEncMiscParameterBuffer misc;
193 VAEncMiscParameterHRD hrd;
195 } VAAPIEncodeH265Context;
197 typedef struct VAAPIEncodeH265Options {
199 } VAAPIEncodeH265Options;
202 #define vseq_var(name) vseq->name, name
203 #define vseq_field(name) vseq->seq_fields.bits.name, name
204 #define vpic_var(name) vpic->name, name
205 #define vpic_field(name) vpic->pic_fields.bits.name, name
206 #define vslice_var(name) vslice->name, name
207 #define vslice_field(name) vslice->slice_fields.bits.name, name
208 #define mseq_var(name) mseq->name, name
209 #define mslice_var(name) mslice->name, name
210 #define mstrps_var(name) mstrps->name, name
212 static void vaapi_encode_h265_write_nal_unit_header(PutBitContext *pbc,
215 u(1, 0, forbidden_zero_bit);
216 u(6, nal_unit_type, nal_unit_type);
217 u(6, 0, nuh_layer_id);
218 u(3, 1, nuh_temporal_id_plus1);
221 static void vaapi_encode_h265_write_rbsp_trailing_bits(PutBitContext *pbc)
223 u(1, 1, rbsp_stop_one_bit);
224 while (put_bits_count(pbc) & 7)
225 u(1, 0, rbsp_alignment_zero_bit);
228 static void vaapi_encode_h265_write_profile_tier_level(PutBitContext *pbc,
229 VAAPIEncodeContext *ctx)
231 VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
232 VAAPIEncodeH265Context *priv = ctx->priv_data;
233 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
237 u(2, 0, general_profile_space);
238 u(1, vseq_var(general_tier_flag));
239 u(5, vseq_var(general_profile_idc));
241 for (j = 0; j < 32; j++) {
242 u(1, mseq_var(general_profile_compatibility_flag[j]));
245 u(1, mseq_var(general_progressive_source_flag));
246 u(1, mseq_var(general_interlaced_source_flag));
247 u(1, mseq_var(general_non_packed_constraint_flag));
248 u(1, mseq_var(general_frame_only_constraint_flag));
252 // Lots of extra constraint flags.
254 // put_bits only handles up to 31 bits.
255 u(23, 0, general_reserved_zero_43bits);
256 u(20, 0, general_reserved_zero_43bits);
259 if (vseq->general_profile_idc >= 1 && vseq->general_profile_idc <= 5) {
260 u(1, mseq_var(general_inbld_flag));
262 u(1, 0, general_reserved_zero_bit);
266 u(8, vseq_var(general_level_idc));
271 static void vaapi_encode_h265_write_vps(PutBitContext *pbc,
272 VAAPIEncodeContext *ctx)
274 VAAPIEncodeH265Context *priv = ctx->priv_data;
275 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
278 vaapi_encode_h265_write_nal_unit_header(pbc, NAL_VPS);
280 u(4, mseq->video_parameter_set_id, vps_video_parameter_set_id);
282 u(1, 1, vps_base_layer_internal_flag);
283 u(1, 1, vps_base_layer_available_flag);
284 u(6, mseq_var(vps_max_layers_minus1));
285 u(3, mseq_var(vps_max_sub_layers_minus1));
286 u(1, mseq_var(vps_temporal_id_nesting_flag));
288 u(16, 0xffff, vps_reserved_0xffff_16bits);
290 vaapi_encode_h265_write_profile_tier_level(pbc, ctx);
292 u(1, mseq_var(vps_sub_layer_ordering_info_present_flag));
293 for (i = (mseq->vps_sub_layer_ordering_info_present_flag ?
294 0 : mseq->vps_max_sub_layers_minus1);
295 i <= mseq->vps_max_sub_layers_minus1; i++) {
296 ue(mseq_var(vps_max_dec_pic_buffering_minus1[i]));
297 ue(mseq_var(vps_max_num_reorder_pics[i]));
298 ue(mseq_var(vps_max_latency_increase_plus1[i]));
301 u(6, mseq_var(vps_max_layer_id));
302 ue(mseq_var(vps_num_layer_sets_minus1));
303 for (i = 1; i <= mseq->vps_num_layer_sets_minus1; i++) {
304 for (j = 0; j < mseq->vps_max_layer_id; j++)
305 u(1, mseq_var(layer_id_included_flag[i][j]));
308 u(1, mseq_var(vps_timing_info_present_flag));
309 if (mseq->vps_timing_info_present_flag) {
310 u(1, 0, put_bits_hack_zero_bit);
311 u(31, mseq_var(vps_num_units_in_tick));
312 u(1, 0, put_bits_hack_zero_bit);
313 u(31, mseq_var(vps_time_scale));
314 u(1, mseq_var(vps_poc_proportional_to_timing_flag));
315 if (mseq->vps_poc_proportional_to_timing_flag) {
316 ue(mseq_var(vps_num_ticks_poc_diff_minus1));
318 ue(0, vps_num_hrd_parameters);
321 u(1, 0, vps_extension_flag);
323 vaapi_encode_h265_write_rbsp_trailing_bits(pbc);
326 static void vaapi_encode_h265_write_st_ref_pic_set(PutBitContext *pbc,
328 VAAPIEncodeH265STRPS *mstrps)
333 u(1, mstrps_var(inter_ref_pic_set_prediction_flag));
335 if (mstrps->inter_ref_pic_set_prediction_flag) {
336 av_assert0(0 && "inter ref pic set prediction not supported");
338 ue(mstrps_var(num_negative_pics));
339 ue(mstrps_var(num_positive_pics));
341 for (i = 0; i < mstrps->num_negative_pics; i++) {
342 ue(mstrps_var(delta_poc_s0_minus1[i]));
343 u(1, mstrps_var(used_by_curr_pic_s0_flag[i]));
345 for (i = 0; i < mstrps->num_positive_pics; i++) {
346 ue(mstrps_var(delta_poc_s1_minus1[i]));
347 u(1, mstrps_var(used_by_curr_pic_s1_flag[i]));
352 static void vaapi_encode_h265_write_vui_parameters(PutBitContext *pbc,
353 VAAPIEncodeContext *ctx)
355 VAAPIEncodeH265Context *priv = ctx->priv_data;
356 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
358 u(1, mseq_var(aspect_ratio_info_present_flag));
359 if (mseq->aspect_ratio_info_present_flag) {
360 u(8, mseq_var(aspect_ratio_idc));
361 if (mseq->aspect_ratio_idc == 255) {
362 u(16, mseq_var(sar_width));
363 u(16, mseq_var(sar_height));
367 u(1, 0, overscan_info_present_flag);
369 u(1, mseq_var(video_signal_type_present_flag));
370 if (mseq->video_signal_type_present_flag) {
371 u(3, mseq_var(video_format));
372 u(1, mseq_var(video_full_range_flag));
373 u(1, mseq_var(colour_description_present_flag));
374 if (mseq->colour_description_present_flag) {
375 u(8, mseq_var(colour_primaries));
376 u(8, mseq_var(transfer_characteristics));
377 u(8, mseq_var(matrix_coeffs));
381 u(1, 0, chroma_loc_info_present_flag);
382 u(1, 0, neutral_chroma_indication_flag);
383 u(1, 0, field_seq_flag);
384 u(1, 0, frame_field_info_present_flag);
385 u(1, 0, default_display_window_flag);
386 u(1, 0, vui_timing_info_present_flag);
387 u(1, 0, bitstream_restriction_flag_flag);
390 static void vaapi_encode_h265_write_sps(PutBitContext *pbc,
391 VAAPIEncodeContext *ctx)
393 VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
394 VAAPIEncodeH265Context *priv = ctx->priv_data;
395 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
398 vaapi_encode_h265_write_nal_unit_header(pbc, NAL_SPS);
400 u(4, mseq->video_parameter_set_id, sps_video_parameter_set_id);
402 u(3, mseq_var(sps_max_sub_layers_minus1));
403 u(1, mseq_var(sps_temporal_id_nesting_flag));
405 vaapi_encode_h265_write_profile_tier_level(pbc, ctx);
407 ue(mseq->seq_parameter_set_id, sps_seq_parameter_set_id);
408 ue(vseq_field(chroma_format_idc));
409 if (vseq->seq_fields.bits.chroma_format_idc == 3)
410 u(1, 0, separate_colour_plane_flag);
412 ue(vseq_var(pic_width_in_luma_samples));
413 ue(vseq_var(pic_height_in_luma_samples));
415 u(1, mseq_var(conformance_window_flag));
416 if (mseq->conformance_window_flag) {
417 ue(mseq_var(conf_win_left_offset));
418 ue(mseq_var(conf_win_right_offset));
419 ue(mseq_var(conf_win_top_offset));
420 ue(mseq_var(conf_win_bottom_offset));
423 ue(vseq_field(bit_depth_luma_minus8));
424 ue(vseq_field(bit_depth_chroma_minus8));
426 ue(mseq_var(log2_max_pic_order_cnt_lsb_minus4));
428 u(1, mseq_var(sps_sub_layer_ordering_info_present_flag));
429 for (i = (mseq->sps_sub_layer_ordering_info_present_flag ?
430 0 : mseq->sps_max_sub_layers_minus1);
431 i <= mseq->sps_max_sub_layers_minus1; i++) {
432 ue(mseq_var(sps_max_dec_pic_buffering_minus1[i]));
433 ue(mseq_var(sps_max_num_reorder_pics[i]));
434 ue(mseq_var(sps_max_latency_increase_plus1[i]));
437 ue(vseq_var(log2_min_luma_coding_block_size_minus3));
438 ue(vseq_var(log2_diff_max_min_luma_coding_block_size));
439 ue(vseq_var(log2_min_transform_block_size_minus2));
440 ue(vseq_var(log2_diff_max_min_transform_block_size));
441 ue(vseq_var(max_transform_hierarchy_depth_inter));
442 ue(vseq_var(max_transform_hierarchy_depth_intra));
444 u(1, vseq_field(scaling_list_enabled_flag));
445 if (vseq->seq_fields.bits.scaling_list_enabled_flag) {
446 u(1, 0, sps_scaling_list_data_present_flag);
449 u(1, vseq_field(amp_enabled_flag));
450 u(1, vseq_field(sample_adaptive_offset_enabled_flag));
452 u(1, vseq_field(pcm_enabled_flag));
453 if (vseq->seq_fields.bits.pcm_enabled_flag) {
454 u(4, vseq_var(pcm_sample_bit_depth_luma_minus1));
455 u(4, vseq_var(pcm_sample_bit_depth_chroma_minus1));
456 ue(vseq_var(log2_min_pcm_luma_coding_block_size_minus3));
457 ue(vseq->log2_max_pcm_luma_coding_block_size_minus3 -
458 vseq->log2_min_pcm_luma_coding_block_size_minus3,
459 log2_diff_max_min_pcm_luma_coding_block_size);
460 u(1, vseq_field(pcm_loop_filter_disabled_flag));
463 ue(mseq_var(num_short_term_ref_pic_sets));
464 for (i = 0; i < mseq->num_short_term_ref_pic_sets; i++)
465 vaapi_encode_h265_write_st_ref_pic_set(pbc, i,
466 &mseq->st_ref_pic_set[i]);
468 u(1, mseq_var(long_term_ref_pics_present_flag));
469 if (mseq->long_term_ref_pics_present_flag) {
470 ue(0, num_long_term_ref_pics_sps);
473 u(1, vseq_field(sps_temporal_mvp_enabled_flag));
474 u(1, vseq_field(strong_intra_smoothing_enabled_flag));
476 u(1, mseq_var(vui_parameters_present_flag));
477 if (mseq->vui_parameters_present_flag) {
478 vaapi_encode_h265_write_vui_parameters(pbc, ctx);
481 u(1, 0, sps_extension_present_flag);
483 vaapi_encode_h265_write_rbsp_trailing_bits(pbc);
486 static void vaapi_encode_h265_write_pps(PutBitContext *pbc,
487 VAAPIEncodeContext *ctx)
489 VAEncPictureParameterBufferHEVC *vpic = ctx->codec_picture_params;
490 VAAPIEncodeH265Context *priv = ctx->priv_data;
491 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
494 vaapi_encode_h265_write_nal_unit_header(pbc, NAL_PPS);
496 ue(vpic->slice_pic_parameter_set_id, pps_pic_parameter_set_id);
497 ue(mseq->seq_parameter_set_id, pps_seq_parameter_set_id);
499 u(1, vpic_field(dependent_slice_segments_enabled_flag));
500 u(1, mseq_var(output_flag_present_flag));
501 u(3, mseq_var(num_extra_slice_header_bits));
502 u(1, vpic_field(sign_data_hiding_enabled_flag));
503 u(1, mseq_var(cabac_init_present_flag));
505 ue(vpic_var(num_ref_idx_l0_default_active_minus1));
506 ue(vpic_var(num_ref_idx_l1_default_active_minus1));
508 se(vpic->pic_init_qp - 26, init_qp_minus26);
510 u(1, vpic_field(constrained_intra_pred_flag));
511 u(1, vpic_field(transform_skip_enabled_flag));
513 u(1, vpic_field(cu_qp_delta_enabled_flag));
514 if (vpic->pic_fields.bits.cu_qp_delta_enabled_flag)
515 ue(vpic_var(diff_cu_qp_delta_depth));
517 se(vpic_var(pps_cb_qp_offset));
518 se(vpic_var(pps_cr_qp_offset));
520 u(1, mseq_var(pps_slice_chroma_qp_offsets_present_flag));
521 u(1, vpic_field(weighted_pred_flag));
522 u(1, vpic_field(weighted_bipred_flag));
523 u(1, vpic_field(transquant_bypass_enabled_flag));
524 u(1, vpic_field(tiles_enabled_flag));
525 u(1, vpic_field(entropy_coding_sync_enabled_flag));
527 if (vpic->pic_fields.bits.tiles_enabled_flag) {
528 ue(vpic_var(num_tile_columns_minus1));
529 ue(vpic_var(num_tile_rows_minus1));
530 u(1, mseq_var(uniform_spacing_flag));
531 if (!mseq->uniform_spacing_flag) {
532 for (i = 0; i < vpic->num_tile_columns_minus1; i++)
533 ue(vpic_var(column_width_minus1[i]));
534 for (i = 0; i < vpic->num_tile_rows_minus1; i++)
535 ue(vpic_var(row_height_minus1[i]));
537 u(1, vpic_field(loop_filter_across_tiles_enabled_flag));
540 u(1, vpic_field(pps_loop_filter_across_slices_enabled_flag));
541 u(1, mseq_var(deblocking_filter_control_present_flag));
542 if (mseq->deblocking_filter_control_present_flag) {
543 u(1, mseq_var(deblocking_filter_override_enabled_flag));
544 u(1, mseq_var(pps_deblocking_filter_disabled_flag));
545 if (!mseq->pps_deblocking_filter_disabled_flag) {
546 se(mseq_var(pps_beta_offset_div2));
547 se(mseq_var(pps_tc_offset_div2));
551 u(1, 0, pps_scaling_list_data_present_flag);
552 // No scaling list data.
554 u(1, mseq_var(lists_modification_present_flag));
555 ue(vpic_var(log2_parallel_merge_level_minus2));
556 u(1, 0, slice_segment_header_extension_present_flag);
557 u(1, 0, pps_extension_present_flag);
559 vaapi_encode_h265_write_rbsp_trailing_bits(pbc);
562 static void vaapi_encode_h265_write_slice_header2(PutBitContext *pbc,
563 VAAPIEncodeContext *ctx,
564 VAAPIEncodePicture *pic,
565 VAAPIEncodeSlice *slice)
567 VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
568 VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
569 VAEncSliceParameterBufferHEVC *vslice = slice->codec_slice_params;
570 VAAPIEncodeH265Context *priv = ctx->priv_data;
571 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
572 VAAPIEncodeH265Slice *pslice = slice->priv_data;
573 VAAPIEncodeH265MiscSliceParams *mslice = &pslice->misc_slice_params;
576 vaapi_encode_h265_write_nal_unit_header(pbc, vpic->nal_unit_type);
578 u(1, mslice_var(first_slice_segment_in_pic_flag));
579 if (vpic->nal_unit_type >= NAL_BLA_W_LP &&
580 vpic->nal_unit_type <= 23)
581 u(1, mslice_var(no_output_of_prior_pics_flag));
583 ue(vslice_var(slice_pic_parameter_set_id));
585 if (!mslice->first_slice_segment_in_pic_flag) {
586 if (vpic->pic_fields.bits.dependent_slice_segments_enabled_flag)
587 u(1, vslice_field(dependent_slice_segment_flag));
588 u(av_log2((priv->ctu_width * priv->ctu_height) - 1) + 1,
589 mslice_var(slice_segment_address));
591 if (!vslice->slice_fields.bits.dependent_slice_segment_flag) {
592 for (i = 0; i < mseq->num_extra_slice_header_bits; i++)
593 u(1, mslice_var(slice_reserved_flag[i]));
595 ue(vslice_var(slice_type));
596 if (mseq->output_flag_present_flag)
597 u(1, 1, pic_output_flag);
598 if (vseq->seq_fields.bits.separate_colour_plane_flag)
599 u(2, vslice_field(colour_plane_id));
600 if (vpic->nal_unit_type != NAL_IDR_W_RADL &&
601 vpic->nal_unit_type != NAL_IDR_N_LP) {
602 u(4 + mseq->log2_max_pic_order_cnt_lsb_minus4,
603 (pslice->pic_order_cnt &
604 ((1 << (mseq->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1)),
605 slice_pic_order_cnt_lsb);
607 u(1, mslice_var(short_term_ref_pic_set_sps_flag));
608 if (!mslice->short_term_ref_pic_set_sps_flag) {
609 vaapi_encode_h265_write_st_ref_pic_set(pbc, mseq->num_short_term_ref_pic_sets,
610 &mslice->st_ref_pic_set);
611 } else if (mseq->num_short_term_ref_pic_sets > 1) {
612 u(av_log2(mseq->num_short_term_ref_pic_sets - 1) + 1,
613 mslice_var(short_term_ref_pic_idx));
616 if (mseq->long_term_ref_pics_present_flag) {
620 if (vseq->seq_fields.bits.sps_temporal_mvp_enabled_flag) {
621 u(1, vslice_field(slice_temporal_mvp_enabled_flag));
624 if (vseq->seq_fields.bits.sample_adaptive_offset_enabled_flag) {
625 u(1, vslice_field(slice_sao_luma_flag));
626 if (!vseq->seq_fields.bits.separate_colour_plane_flag &&
627 vseq->seq_fields.bits.chroma_format_idc != 0) {
628 u(1, vslice_field(slice_sao_chroma_flag));
632 if (vslice->slice_type == P_SLICE || vslice->slice_type == B_SLICE) {
633 u(1, vslice_field(num_ref_idx_active_override_flag));
634 if (vslice->slice_fields.bits.num_ref_idx_active_override_flag) {
635 ue(vslice_var(num_ref_idx_l0_active_minus1));
636 if (vslice->slice_type == B_SLICE) {
637 ue(vslice_var(num_ref_idx_l1_active_minus1));
641 if (mseq->lists_modification_present_flag) {
643 // ref_pic_lists_modification()
645 if (vslice->slice_type == B_SLICE) {
646 u(1, vslice_field(mvd_l1_zero_flag));
648 if (mseq->cabac_init_present_flag) {
649 u(1, vslice_field(cabac_init_flag));
651 if (vslice->slice_fields.bits.slice_temporal_mvp_enabled_flag) {
652 if (vslice->slice_type == B_SLICE)
653 u(1, vslice_field(collocated_from_l0_flag));
654 ue(vpic->collocated_ref_pic_index, collocated_ref_idx);
656 if ((vpic->pic_fields.bits.weighted_pred_flag &&
657 vslice->slice_type == P_SLICE) ||
658 (vpic->pic_fields.bits.weighted_bipred_flag &&
659 vslice->slice_type == B_SLICE)) {
661 // pred_weight_table()
663 ue(5 - vslice->max_num_merge_cand, five_minus_max_num_merge_cand);
666 se(vslice_var(slice_qp_delta));
667 if (mseq->pps_slice_chroma_qp_offsets_present_flag) {
668 se(vslice_var(slice_cb_qp_offset));
669 se(vslice_var(slice_cr_qp_offset));
671 if (mseq->pps_slice_chroma_offset_list_enabled_flag) {
672 u(1, 0, cu_chroma_qp_offset_enabled_flag);
674 if (mseq->deblocking_filter_override_enabled_flag) {
675 u(1, mslice_var(deblocking_filter_override_flag));
677 if (mslice->deblocking_filter_override_flag) {
678 u(1, vslice_field(slice_deblocking_filter_disabled_flag));
679 if (!vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag) {
680 se(vslice_var(slice_beta_offset_div2));
681 se(vslice_var(slice_tc_offset_div2));
684 if (vpic->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag &&
685 (vslice->slice_fields.bits.slice_sao_luma_flag ||
686 vslice->slice_fields.bits.slice_sao_chroma_flag ||
687 vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag)) {
688 u(1, vslice_field(slice_loop_filter_across_slices_enabled_flag));
692 if (vpic->pic_fields.bits.tiles_enabled_flag ||
693 vpic->pic_fields.bits.entropy_coding_sync_enabled_flag) {
694 // num_entry_point_offsets
698 // slice_segment_header_extension_length
702 u(1, 1, alignment_bit_equal_to_one);
703 while (put_bits_count(pbc) & 7)
704 u(1, 0, alignment_bit_equal_to_zero);
707 static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,
708 char *data, size_t *data_len)
710 VAAPIEncodeContext *ctx = avctx->priv_data;
714 size_t nal_len, bit_len, bit_pos, next_len;
719 init_put_bits(&pbc, tmp, sizeof(tmp));
720 vaapi_encode_h265_write_vps(&pbc, ctx);
721 nal_len = put_bits_count(&pbc);
722 flush_put_bits(&pbc);
724 next_len = bit_len - bit_pos;
725 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
732 init_put_bits(&pbc, tmp, sizeof(tmp));
733 vaapi_encode_h265_write_sps(&pbc, ctx);
734 nal_len = put_bits_count(&pbc);
735 flush_put_bits(&pbc);
737 next_len = bit_len - bit_pos;
738 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
745 init_put_bits(&pbc, tmp, sizeof(tmp));
746 vaapi_encode_h265_write_pps(&pbc, ctx);
747 nal_len = put_bits_count(&pbc);
748 flush_put_bits(&pbc);
750 next_len = bit_len - bit_pos;
751 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
762 static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,
763 VAAPIEncodePicture *pic,
764 VAAPIEncodeSlice *slice,
765 char *data, size_t *data_len)
767 VAAPIEncodeContext *ctx = avctx->priv_data;
772 init_put_bits(&pbc, tmp, sizeof(tmp));
773 vaapi_encode_h265_write_slice_header2(&pbc, ctx, pic, slice);
774 header_len = put_bits_count(&pbc);
775 flush_put_bits(&pbc);
777 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
781 static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
783 VAAPIEncodeContext *ctx = avctx->priv_data;
784 VAEncSequenceParameterBufferHEVC *vseq = ctx->codec_sequence_params;
785 VAEncPictureParameterBufferHEVC *vpic = ctx->codec_picture_params;
786 VAAPIEncodeH265Context *priv = ctx->priv_data;
787 VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
791 // general_profile_space == 0.
792 vseq->general_profile_idc = 1; // Main profile (ctx->codec_profile?)
793 vseq->general_tier_flag = 0;
795 vseq->general_level_idc = avctx->level * 3;
797 vseq->intra_period = 0;
798 vseq->intra_idr_period = 0;
801 vseq->pic_width_in_luma_samples = ctx->aligned_width;
802 vseq->pic_height_in_luma_samples = ctx->aligned_height;
804 vseq->seq_fields.bits.chroma_format_idc = 1; // 4:2:0.
805 vseq->seq_fields.bits.separate_colour_plane_flag = 0;
806 vseq->seq_fields.bits.bit_depth_luma_minus8 = 0; // 8-bit luma.
807 vseq->seq_fields.bits.bit_depth_chroma_minus8 = 0; // 8-bit chroma.
808 // Other misc flags all zero.
810 // These have to come from the capabilities of the encoder. We have
811 // no way to query it, so just hardcode ones which worked for me...
812 // CTB size from 8x8 to 32x32.
813 vseq->log2_min_luma_coding_block_size_minus3 = 0;
814 vseq->log2_diff_max_min_luma_coding_block_size = 2;
815 // Transform size from 4x4 to 32x32.
816 vseq->log2_min_transform_block_size_minus2 = 0;
817 vseq->log2_diff_max_min_transform_block_size = 3;
818 // Full transform hierarchy allowed (2-5).
819 vseq->max_transform_hierarchy_depth_inter = 3;
820 vseq->max_transform_hierarchy_depth_intra = 3;
822 vseq->vui_parameters_present_flag = 0;
824 vseq->bits_per_second = avctx->bit_rate;
825 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
826 vseq->vui_num_units_in_tick = avctx->framerate.num;
827 vseq->vui_time_scale = avctx->framerate.den;
829 vseq->vui_num_units_in_tick = avctx->time_base.num;
830 vseq->vui_time_scale = avctx->time_base.den;
833 vseq->intra_period = ctx->p_per_i * (ctx->b_per_p + 1);
834 vseq->intra_idr_period = vseq->intra_period;
835 vseq->ip_period = ctx->b_per_p + 1;
839 vpic->decoded_curr_pic.picture_id = VA_INVALID_ID;
840 vpic->decoded_curr_pic.flags = VA_PICTURE_HEVC_INVALID;
842 for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
843 vpic->reference_frames[i].picture_id = VA_INVALID_ID;
844 vpic->reference_frames[i].flags = VA_PICTURE_HEVC_INVALID;
847 vpic->collocated_ref_pic_index = 0xff;
849 vpic->last_picture = 0;
851 vpic->pic_init_qp = priv->fixed_qp_idr;
853 vpic->diff_cu_qp_delta_depth = 0;
854 vpic->pps_cb_qp_offset = 0;
855 vpic->pps_cr_qp_offset = 0;
857 // tiles_enabled_flag == 0, so ignore num_tile_(rows|columns)_minus1.
859 vpic->log2_parallel_merge_level_minus2 = 0;
862 vpic->ctu_max_bitsize_allowed = 0;
864 vpic->num_ref_idx_l0_default_active_minus1 = 0;
865 vpic->num_ref_idx_l1_default_active_minus1 = 0;
867 vpic->slice_pic_parameter_set_id = 0;
869 vpic->pic_fields.bits.screen_content_flag = 0;
870 vpic->pic_fields.bits.enable_gpu_weighted_prediction = 0;
872 // Per-CU QP changes are required for non-constant-QP modes.
873 vpic->pic_fields.bits.cu_qp_delta_enabled_flag =
874 ctx->va_rc_mode != VA_RC_CQP;
878 mseq->video_parameter_set_id = 5;
879 mseq->seq_parameter_set_id = 5;
881 mseq->vps_max_layers_minus1 = 0;
882 mseq->vps_max_sub_layers_minus1 = 0;
883 mseq->vps_temporal_id_nesting_flag = 1;
884 mseq->sps_max_sub_layers_minus1 = 0;
885 mseq->sps_temporal_id_nesting_flag = 1;
887 for (i = 0; i < 32; i++) {
888 mseq->general_profile_compatibility_flag[i] =
889 (i == vseq->general_profile_idc);
892 mseq->general_progressive_source_flag = 1;
893 mseq->general_interlaced_source_flag = 0;
894 mseq->general_non_packed_constraint_flag = 0;
895 mseq->general_frame_only_constraint_flag = 1;
896 mseq->general_inbld_flag = 0;
898 mseq->log2_max_pic_order_cnt_lsb_minus4 = 8;
899 mseq->vps_sub_layer_ordering_info_present_flag = 0;
900 mseq->vps_max_dec_pic_buffering_minus1[0] = 1;
901 mseq->vps_max_num_reorder_pics[0] = ctx->b_per_p;
902 mseq->vps_max_latency_increase_plus1[0] = 0;
903 mseq->sps_sub_layer_ordering_info_present_flag = 0;
904 mseq->sps_max_dec_pic_buffering_minus1[0] = 1;
905 mseq->sps_max_num_reorder_pics[0] = ctx->b_per_p;
906 mseq->sps_max_latency_increase_plus1[0] = 0;
908 mseq->vps_timing_info_present_flag = 1;
909 mseq->vps_num_units_in_tick = avctx->time_base.num;
910 mseq->vps_time_scale = avctx->time_base.den;
911 mseq->vps_poc_proportional_to_timing_flag = 1;
912 mseq->vps_num_ticks_poc_diff_minus1 = 0;
914 if (ctx->input_width != ctx->aligned_width ||
915 ctx->input_height != ctx->aligned_height) {
916 mseq->conformance_window_flag = 1;
917 mseq->conf_win_left_offset = 0;
918 mseq->conf_win_right_offset =
919 (ctx->aligned_width - ctx->input_width) / 2;
920 mseq->conf_win_top_offset = 0;
921 mseq->conf_win_bottom_offset =
922 (ctx->aligned_height - ctx->input_height) / 2;
924 mseq->conformance_window_flag = 0;
927 mseq->num_short_term_ref_pic_sets = 0;
928 // STRPSs should ideally be here rather than repeated in each slice.
930 mseq->vui_parameters_present_flag = 1;
931 if (avctx->sample_aspect_ratio.num != 0) {
932 mseq->aspect_ratio_info_present_flag = 1;
933 if (avctx->sample_aspect_ratio.num ==
934 avctx->sample_aspect_ratio.den) {
935 mseq->aspect_ratio_idc = 1;
937 mseq->aspect_ratio_idc = 255; // Extended SAR.
938 mseq->sar_width = avctx->sample_aspect_ratio.num;
939 mseq->sar_height = avctx->sample_aspect_ratio.den;
943 // Should this be conditional on some of these being set?
944 mseq->video_signal_type_present_flag = 1;
945 mseq->video_format = 5; // Unspecified.
946 mseq->video_full_range_flag = 0;
947 mseq->colour_description_present_flag = 1;
948 mseq->colour_primaries = avctx->color_primaries;
949 mseq->transfer_characteristics = avctx->color_trc;
950 mseq->matrix_coeffs = avctx->colorspace;
957 static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,
958 VAAPIEncodePicture *pic)
960 VAAPIEncodeContext *ctx = avctx->priv_data;
961 VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
962 VAAPIEncodeH265Context *priv = ctx->priv_data;
965 if (pic->type == PICTURE_TYPE_IDR) {
966 av_assert0(pic->display_order == pic->encode_order);
967 priv->last_idr_frame = pic->display_order;
969 av_assert0(pic->encode_order > priv->last_idr_frame);
970 // Display order need not be if we have RA[SD]L pictures, though.
973 vpic->decoded_curr_pic.picture_id = pic->recon_surface;
974 vpic->decoded_curr_pic.pic_order_cnt =
975 pic->display_order - priv->last_idr_frame;
976 vpic->decoded_curr_pic.flags = 0;
978 for (i = 0; i < pic->nb_refs; i++) {
979 VAAPIEncodePicture *ref = pic->refs[i];
981 vpic->reference_frames[i].picture_id = ref->recon_surface;
982 vpic->reference_frames[i].pic_order_cnt =
983 ref->display_order - priv->last_idr_frame;
984 vpic->reference_frames[i].flags =
985 (ref->display_order < pic->display_order ?
986 VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |
987 (ref->display_order > pic->display_order ?
988 VA_PICTURE_HEVC_RPS_ST_CURR_AFTER : 0);
990 for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
991 vpic->reference_frames[i].picture_id = VA_INVALID_ID;
992 vpic->reference_frames[i].flags = VA_PICTURE_HEVC_INVALID;
995 vpic->coded_buf = pic->output_buffer;
998 case PICTURE_TYPE_IDR:
999 vpic->nal_unit_type = NAL_IDR_W_RADL;
1000 vpic->pic_fields.bits.idr_pic_flag = 1;
1001 vpic->pic_fields.bits.coding_type = 1;
1002 vpic->pic_fields.bits.reference_pic_flag = 1;
1004 case PICTURE_TYPE_I:
1005 vpic->nal_unit_type = NAL_TRAIL_R;
1006 vpic->pic_fields.bits.idr_pic_flag = 0;
1007 vpic->pic_fields.bits.coding_type = 1;
1008 vpic->pic_fields.bits.reference_pic_flag = 1;
1010 case PICTURE_TYPE_P:
1011 vpic->nal_unit_type = NAL_TRAIL_R;
1012 vpic->pic_fields.bits.idr_pic_flag = 0;
1013 vpic->pic_fields.bits.coding_type = 2;
1014 vpic->pic_fields.bits.reference_pic_flag = 1;
1016 case PICTURE_TYPE_B:
1017 vpic->nal_unit_type = NAL_TRAIL_R;
1018 vpic->pic_fields.bits.idr_pic_flag = 0;
1019 vpic->pic_fields.bits.coding_type = 3;
1020 vpic->pic_fields.bits.reference_pic_flag = 0;
1023 av_assert0(0 && "invalid picture type");
1031 static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
1032 VAAPIEncodePicture *pic,
1033 VAAPIEncodeSlice *slice)
1035 VAAPIEncodeContext *ctx = avctx->priv_data;
1036 VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
1037 VAEncSliceParameterBufferHEVC *vslice = slice->codec_slice_params;
1038 VAAPIEncodeH265Context *priv = ctx->priv_data;
1039 VAAPIEncodeH265Slice *pslice;
1040 VAAPIEncodeH265MiscSliceParams *mslice;
1043 slice->priv_data = av_mallocz(sizeof(*pslice));
1044 if (!slice->priv_data)
1045 return AVERROR(ENOMEM);
1046 pslice = slice->priv_data;
1047 mslice = &pslice->misc_slice_params;
1049 // Currently we only support one slice per frame.
1050 vslice->slice_segment_address = 0;
1051 vslice->num_ctu_in_slice = priv->ctu_width * priv->ctu_height;
1053 switch (pic->type) {
1054 case PICTURE_TYPE_IDR:
1055 case PICTURE_TYPE_I:
1056 vslice->slice_type = I_SLICE;
1058 case PICTURE_TYPE_P:
1059 vslice->slice_type = P_SLICE;
1061 case PICTURE_TYPE_B:
1062 vslice->slice_type = B_SLICE;
1065 av_assert0(0 && "invalid picture type");
1068 vslice->slice_pic_parameter_set_id = vpic->slice_pic_parameter_set_id;
1070 pslice->pic_order_cnt = pic->display_order - priv->last_idr_frame;
1072 for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {
1073 vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;
1074 vslice->ref_pic_list0[i].flags = VA_PICTURE_HEVC_INVALID;
1075 vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;
1076 vslice->ref_pic_list1[i].flags = VA_PICTURE_HEVC_INVALID;
1079 av_assert0(pic->nb_refs <= 2);
1080 if (pic->nb_refs >= 1) {
1081 // Backward reference for P- or B-frame.
1082 av_assert0(pic->type == PICTURE_TYPE_P ||
1083 pic->type == PICTURE_TYPE_B);
1085 vslice->num_ref_idx_l0_active_minus1 = 0;
1086 vslice->ref_pic_list0[0] = vpic->reference_frames[0];
1088 if (pic->nb_refs >= 2) {
1089 // Forward reference for B-frame.
1090 av_assert0(pic->type == PICTURE_TYPE_B);
1092 vslice->num_ref_idx_l1_active_minus1 = 0;
1093 vslice->ref_pic_list1[0] = vpic->reference_frames[1];
1096 vslice->max_num_merge_cand = 5;
1098 if (pic->type == PICTURE_TYPE_B)
1099 vslice->slice_qp_delta = priv->fixed_qp_b - vpic->pic_init_qp;
1100 else if (pic->type == PICTURE_TYPE_P)
1101 vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp;
1103 vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp;
1105 vslice->slice_fields.bits.last_slice_of_pic_flag = 1;
1107 mslice->first_slice_segment_in_pic_flag = 1;
1109 if (pic->type == PICTURE_TYPE_IDR) {
1110 // No reference pictures.
1112 mslice->short_term_ref_pic_set_sps_flag = 1;
1113 mslice->short_term_ref_pic_idx = 0;
1115 VAAPIEncodePicture *st;
1118 mslice->short_term_ref_pic_set_sps_flag = 0;
1119 mslice->st_ref_pic_set.inter_ref_pic_set_prediction_flag = 0;
1121 for (st = ctx->pic_start; st; st = st->next) {
1122 if (st->encode_order >= pic->encode_order) {
1127 for (i = 0; i < pic->nb_refs; i++) {
1128 if (pic->refs[i] == st)
1132 // Currently true, but need not be.
1135 // This only works for one instance of each (delta_poc_sN_minus1
1136 // is relative to the previous frame in the list, not relative to
1137 // the current frame directly).
1138 if (st->display_order < pic->display_order) {
1139 i = mslice->st_ref_pic_set.num_negative_pics;
1140 mslice->st_ref_pic_set.delta_poc_s0_minus1[i] =
1141 pic->display_order - st->display_order - 1;
1142 mslice->st_ref_pic_set.used_by_curr_pic_s0_flag[i] = used;
1143 ++mslice->st_ref_pic_set.num_negative_pics;
1145 i = mslice->st_ref_pic_set.num_positive_pics;
1146 mslice->st_ref_pic_set.delta_poc_s1_minus1[i] =
1147 st->display_order - pic->display_order - 1;
1148 mslice->st_ref_pic_set.used_by_curr_pic_s1_flag[i] = used;
1149 ++mslice->st_ref_pic_set.num_positive_pics;
1157 static av_cold int vaapi_encode_h265_init_constant_bitrate(AVCodecContext *avctx)
1159 VAAPIEncodeContext *ctx = avctx->priv_data;
1160 VAAPIEncodeH265Context *priv = ctx->priv_data;
1161 int hrd_buffer_size;
1162 int hrd_initial_buffer_fullness;
1164 if (avctx->bit_rate > INT32_MAX) {
1165 av_log(avctx, AV_LOG_ERROR, "Target bitrate of 2^31 bps or "
1166 "higher is not supported.\n");
1167 return AVERROR(EINVAL);
1170 if (avctx->rc_buffer_size)
1171 hrd_buffer_size = avctx->rc_buffer_size;
1173 hrd_buffer_size = avctx->bit_rate;
1174 if (avctx->rc_initial_buffer_occupancy)
1175 hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
1177 hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
1179 priv->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
1180 priv->rc_params.rc = (VAEncMiscParameterRateControl) {
1181 .bits_per_second = avctx->bit_rate,
1182 .target_percentage = 66,
1183 .window_size = 1000,
1184 .initial_qp = (avctx->qmax >= 0 ? avctx->qmax : 40),
1185 .min_qp = (avctx->qmin >= 0 ? avctx->qmin : 20),
1186 .basic_unit_size = 0,
1188 ctx->global_params[ctx->nb_global_params] =
1189 &priv->rc_params.misc;
1190 ctx->global_params_size[ctx->nb_global_params++] =
1191 sizeof(priv->rc_params);
1193 priv->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
1194 priv->hrd_params.hrd = (VAEncMiscParameterHRD) {
1195 .initial_buffer_fullness = hrd_initial_buffer_fullness,
1196 .buffer_size = hrd_buffer_size,
1198 ctx->global_params[ctx->nb_global_params] =
1199 &priv->hrd_params.misc;
1200 ctx->global_params_size[ctx->nb_global_params++] =
1201 sizeof(priv->hrd_params);
1203 // These still need to be set for pic_init_qp/slice_qp_delta.
1204 priv->fixed_qp_idr = 30;
1205 priv->fixed_qp_p = 30;
1206 priv->fixed_qp_b = 30;
1208 av_log(avctx, AV_LOG_DEBUG, "Using constant-bitrate = %"PRId64" bps.\n",
1213 static av_cold int vaapi_encode_h265_init_fixed_qp(AVCodecContext *avctx)
1215 VAAPIEncodeContext *ctx = avctx->priv_data;
1216 VAAPIEncodeH265Context *priv = ctx->priv_data;
1217 VAAPIEncodeH265Options *opt = ctx->codec_options;
1219 priv->fixed_qp_p = opt->qp;
1220 if (avctx->i_quant_factor > 0.0)
1221 priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
1222 avctx->i_quant_offset) + 0.5);
1224 priv->fixed_qp_idr = priv->fixed_qp_p;
1225 if (avctx->b_quant_factor > 0.0)
1226 priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
1227 avctx->b_quant_offset) + 0.5);
1229 priv->fixed_qp_b = priv->fixed_qp_p;
1231 av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1232 "%d / %d / %d for IDR- / P- / B-frames.\n",
1233 priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1237 static av_cold int vaapi_encode_h265_init_internal(AVCodecContext *avctx)
1239 static const VAConfigAttrib default_config_attributes[] = {
1240 { .type = VAConfigAttribRTFormat,
1241 .value = VA_RT_FORMAT_YUV420 },
1242 { .type = VAConfigAttribEncPackedHeaders,
1243 .value = (VA_ENC_PACKED_HEADER_SEQUENCE |
1244 VA_ENC_PACKED_HEADER_SLICE) },
1247 VAAPIEncodeContext *ctx = avctx->priv_data;
1248 VAAPIEncodeH265Context *priv = ctx->priv_data;
1251 switch (avctx->profile) {
1252 case FF_PROFILE_HEVC_MAIN:
1253 case FF_PROFILE_UNKNOWN:
1254 ctx->va_profile = VAProfileHEVCMain;
1256 case FF_PROFILE_HEVC_MAIN_10:
1257 av_log(avctx, AV_LOG_ERROR, "H.265 main 10-bit profile "
1258 "is not supported.\n");
1259 return AVERROR_PATCHWELCOME;
1261 av_log(avctx, AV_LOG_ERROR, "Unknown H.265 profile %d.\n",
1263 return AVERROR(EINVAL);
1265 ctx->va_entrypoint = VAEntrypointEncSlice;
1267 ctx->input_width = avctx->width;
1268 ctx->input_height = avctx->height;
1269 ctx->aligned_width = FFALIGN(ctx->input_width, 16);
1270 ctx->aligned_height = FFALIGN(ctx->input_height, 16);
1271 priv->ctu_width = FFALIGN(ctx->aligned_width, 32) / 32;
1272 priv->ctu_height = FFALIGN(ctx->aligned_height, 32) / 32;
1274 av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Aligned %ux%u -> CTU %ux%u.\n",
1275 ctx->input_width, ctx->input_height, ctx->aligned_width,
1276 ctx->aligned_height, priv->ctu_width, priv->ctu_height);
1278 for (i = 0; i < FF_ARRAY_ELEMS(default_config_attributes); i++) {
1279 ctx->config_attributes[ctx->nb_config_attributes++] =
1280 default_config_attributes[i];
1283 if (avctx->bit_rate > 0) {
1284 ctx->va_rc_mode = VA_RC_CBR;
1285 err = vaapi_encode_h265_init_constant_bitrate(avctx);
1287 ctx->va_rc_mode = VA_RC_CQP;
1288 err = vaapi_encode_h265_init_fixed_qp(avctx);
1293 ctx->config_attributes[ctx->nb_config_attributes++] = (VAConfigAttrib) {
1294 .type = VAConfigAttribRateControl,
1295 .value = ctx->va_rc_mode,
1298 ctx->nb_recon_frames = 20;
1303 static VAAPIEncodeType vaapi_encode_type_h265 = {
1304 .priv_data_size = sizeof(VAAPIEncodeH265Context),
1306 .init = &vaapi_encode_h265_init_internal,
1308 .sequence_params_size = sizeof(VAEncSequenceParameterBufferHEVC),
1309 .init_sequence_params = &vaapi_encode_h265_init_sequence_params,
1311 .picture_params_size = sizeof(VAEncPictureParameterBufferHEVC),
1312 .init_picture_params = &vaapi_encode_h265_init_picture_params,
1314 .slice_params_size = sizeof(VAEncSliceParameterBufferHEVC),
1315 .init_slice_params = &vaapi_encode_h265_init_slice_params,
1317 .sequence_header_type = VAEncPackedHeaderSequence,
1318 .write_sequence_header = &vaapi_encode_h265_write_sequence_header,
1320 .slice_header_type = VAEncPackedHeaderHEVC_Slice,
1321 .write_slice_header = &vaapi_encode_h265_write_slice_header,
1324 static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
1326 return ff_vaapi_encode_init(avctx, &vaapi_encode_type_h265);
1329 #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
1330 offsetof(VAAPIEncodeH265Options, x))
1331 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1332 static const AVOption vaapi_encode_h265_options[] = {
1333 { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1334 OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 25 }, 0, 52, FLAGS },
1338 static const AVCodecDefault vaapi_encode_h265_defaults[] = {
1344 { "i_qfactor", "1.0" },
1345 { "i_qoffset", "0.0" },
1346 { "b_qfactor", "1.2" },
1347 { "b_qoffset", "0.0" },
1351 static const AVClass vaapi_encode_h265_class = {
1352 .class_name = "h265_vaapi",
1353 .item_name = av_default_item_name,
1354 .option = vaapi_encode_h265_options,
1355 .version = LIBAVUTIL_VERSION_INT,
1358 AVCodec ff_hevc_vaapi_encoder = {
1359 .name = "hevc_vaapi",
1360 .long_name = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),
1361 .type = AVMEDIA_TYPE_VIDEO,
1362 .id = AV_CODEC_ID_HEVC,
1363 .priv_data_size = (sizeof(VAAPIEncodeContext) +
1364 sizeof(VAAPIEncodeH265Options)),
1365 .init = &vaapi_encode_h265_init,
1366 .encode2 = &ff_vaapi_encode2,
1367 .close = &ff_vaapi_encode_close,
1368 .priv_class = &vaapi_encode_h265_class,
1369 .capabilities = AV_CODEC_CAP_DELAY,
1370 .defaults = vaapi_encode_h265_defaults,
1371 .pix_fmts = (const enum AVPixelFormat[]) {