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_h264.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"
42 // This structure contains all possibly-useful per-sequence syntax elements
43 // which are not already contained in the various VAAPI structures.
44 typedef 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;
53 char separate_colour_plane_flag;
54 char qpprime_y_zero_transform_bypass_flag;
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;
60 unsigned int num_slice_groups_minus1;
61 unsigned int slice_group_map_type;
63 int pic_init_qs_minus26;
65 char overscan_info_present_flag;
66 char overscan_appropriate_flag;
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;
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;
80 // Some timing elements are in VAEncSequenceParameterBufferH264.
81 char fixed_frame_rate_flag;
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;
88 char motion_vectors_over_pic_boundaries_flag;
89 unsigned int max_bytes_per_pic_denom;
90 unsigned int max_bits_per_mb_denom;
91 unsigned int max_num_reorder_frames;
92 unsigned int max_dec_pic_buffering;
94 unsigned int cpb_cnt_minus1;
95 unsigned int bit_rate_scale;
96 unsigned int cpb_size_scale;
97 unsigned int bit_rate_value_minus1[32];
98 unsigned int cpb_size_value_minus1[32];
100 unsigned int initial_cpb_removal_delay_length_minus1;
101 unsigned int cpb_removal_delay_length_minus1;
102 unsigned int dpb_output_delay_length_minus1;
103 unsigned int time_offset_length;
105 unsigned int initial_cpb_removal_delay;
106 unsigned int initial_cpb_removal_delay_offset;
108 unsigned int pic_struct;
109 } VAAPIEncodeH264MiscSequenceParams;
111 // This structure contains all possibly-useful per-slice syntax elements
112 // which are not already contained in the various VAAPI structures.
113 typedef struct VAAPIEncodeH264MiscSliceParams {
114 unsigned int nal_unit_type;
115 unsigned int nal_ref_idc;
117 unsigned int colour_plane_id;
119 char bottom_field_flag;
121 unsigned int redundant_pic_cnt;
123 char sp_for_switch_flag;
126 char ref_pic_list_modification_flag_l0;
127 char ref_pic_list_modification_flag_l1;
129 char no_output_of_prior_pics_flag;
130 char long_term_reference_flag;
131 char adaptive_ref_pic_marking_mode_flag;
132 } VAAPIEncodeH264MiscSliceParams;
134 typedef struct VAAPIEncodeH264Slice {
135 VAAPIEncodeH264MiscSliceParams misc_slice_params;
136 } VAAPIEncodeH264Slice;
138 typedef struct VAAPIEncodeH264Context {
139 VAAPIEncodeH264MiscSequenceParams misc_sequence_params;
149 int64_t last_idr_frame;
150 int64_t idr_pic_count;
155 // Rate control configuration.
157 } VAAPIEncodeH264Context;
159 typedef struct VAAPIEncodeH264Options {
163 // Entropy encoder type.
165 } VAAPIEncodeH264Options;
168 #define vseq_var(name) vseq->name, name
169 #define vseq_field(name) vseq->seq_fields.bits.name, name
170 #define vvui_field(name) vseq->vui_fields.bits.name, name
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
178 static void vaapi_encode_h264_write_nal_header(PutBitContext *pbc,
179 int nal_unit_type, int nal_ref_idc)
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);
186 static void vaapi_encode_h264_write_trailing_rbsp(PutBitContext *pbc)
188 u(1, 1, rbsp_stop_one_bit);
189 while (put_bits_count(pbc) & 7)
190 u(1, 0, rbsp_alignment_zero_bit);
193 static void vaapi_encode_h264_write_vui(PutBitContext *pbc,
194 VAAPIEncodeContext *ctx)
196 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
197 VAAPIEncodeH264Context *priv = ctx->priv_data;
198 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
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));
210 u(1, mseq_var(overscan_info_present_flag));
211 if (mseq->overscan_info_present_flag)
212 u(1, mseq_var(overscan_appropriate_flag));
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));
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));
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));
239 u(1, mseq_var(nal_hrd_parameters_present_flag));
240 if (mseq->nal_hrd_parameters_present_flag) {
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]));
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));
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");
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));
264 u(1, vvui_field(bitstream_restriction_flag));
265 if (vseq->vui_fields.bits.bitstream_restriction_flag) {
266 u(1, mseq_var(motion_vectors_over_pic_boundaries_flag));
267 ue(mseq_var(max_bytes_per_pic_denom));
268 ue(mseq_var(max_bits_per_mb_denom));
269 ue(vvui_field(log2_max_mv_length_horizontal));
270 ue(vvui_field(log2_max_mv_length_vertical));
271 ue(mseq_var(max_num_reorder_frames));
272 ue(mseq_var(max_dec_pic_buffering));
276 static void vaapi_encode_h264_write_sps(PutBitContext *pbc,
277 VAAPIEncodeContext *ctx)
279 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
280 VAAPIEncodeH264Context *priv = ctx->priv_data;
281 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
284 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SPS, 3);
286 u(8, mseq_var(profile_idc));
287 u(1, mseq_var(constraint_set0_flag));
288 u(1, mseq_var(constraint_set1_flag));
289 u(1, mseq_var(constraint_set2_flag));
290 u(1, mseq_var(constraint_set3_flag));
291 u(1, mseq_var(constraint_set4_flag));
292 u(1, mseq_var(constraint_set5_flag));
293 u(2, 0, reserved_zero_2bits);
295 u(8, vseq_var(level_idc));
297 ue(vseq_var(seq_parameter_set_id));
299 if (mseq->profile_idc == 100 || mseq->profile_idc == 110 ||
300 mseq->profile_idc == 122 || mseq->profile_idc == 244 ||
301 mseq->profile_idc == 44 || mseq->profile_idc == 83 ||
302 mseq->profile_idc == 86 || mseq->profile_idc == 118 ||
303 mseq->profile_idc == 128 || mseq->profile_idc == 138) {
304 ue(vseq_field(chroma_format_idc));
306 if (vseq->seq_fields.bits.chroma_format_idc == 3)
307 u(1, mseq_var(separate_colour_plane_flag));
309 ue(vseq_var(bit_depth_luma_minus8));
310 ue(vseq_var(bit_depth_chroma_minus8));
312 u(1, mseq_var(qpprime_y_zero_transform_bypass_flag));
314 u(1, vseq_field(seq_scaling_matrix_present_flag));
315 if (vseq->seq_fields.bits.seq_scaling_matrix_present_flag) {
316 av_assert0(0 && "scaling matrices not supported");
320 ue(vseq_field(log2_max_frame_num_minus4));
321 ue(vseq_field(pic_order_cnt_type));
323 if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
324 ue(vseq_field(log2_max_pic_order_cnt_lsb_minus4));
325 } else if (vseq->seq_fields.bits.pic_order_cnt_type == 1) {
326 u(1, mseq_var(delta_pic_order_always_zero_flag));
327 se(vseq_var(offset_for_non_ref_pic));
328 se(vseq_var(offset_for_top_to_bottom_field));
329 ue(vseq_var(num_ref_frames_in_pic_order_cnt_cycle));
331 for (i = 0; i < vseq->num_ref_frames_in_pic_order_cnt_cycle; i++)
332 se(vseq_var(offset_for_ref_frame[i]));
335 ue(vseq_var(max_num_ref_frames));
336 u(1, mseq_var(gaps_in_frame_num_allowed_flag));
338 ue(vseq->picture_width_in_mbs - 1, pic_width_in_mbs_minus1);
339 ue(vseq->picture_height_in_mbs - 1, pic_height_in_mbs_minus1);
341 u(1, vseq_field(frame_mbs_only_flag));
342 if (!vseq->seq_fields.bits.frame_mbs_only_flag)
343 u(1, vseq_field(mb_adaptive_frame_field_flag));
345 u(1, vseq_field(direct_8x8_inference_flag));
347 u(1, vseq_var(frame_cropping_flag));
348 if (vseq->frame_cropping_flag) {
349 ue(vseq_var(frame_crop_left_offset));
350 ue(vseq_var(frame_crop_right_offset));
351 ue(vseq_var(frame_crop_top_offset));
352 ue(vseq_var(frame_crop_bottom_offset));
355 u(1, vseq_var(vui_parameters_present_flag));
356 if (vseq->vui_parameters_present_flag)
357 vaapi_encode_h264_write_vui(pbc, ctx);
359 vaapi_encode_h264_write_trailing_rbsp(pbc);
362 static void vaapi_encode_h264_write_pps(PutBitContext *pbc,
363 VAAPIEncodeContext *ctx)
365 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
366 VAAPIEncodeH264Context *priv = ctx->priv_data;
367 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
369 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_PPS, 3);
371 ue(vpic_var(pic_parameter_set_id));
372 ue(vpic_var(seq_parameter_set_id));
374 u(1, vpic_field(entropy_coding_mode_flag));
375 u(1, mseq_var(bottom_field_pic_order_in_frame_present_flag));
377 ue(mseq_var(num_slice_groups_minus1));
378 if (mseq->num_slice_groups_minus1 > 0) {
379 ue(mseq_var(slice_group_map_type));
380 av_assert0(0 && "slice groups not supported");
383 ue(vpic_var(num_ref_idx_l0_active_minus1));
384 ue(vpic_var(num_ref_idx_l1_active_minus1));
386 u(1, vpic_field(weighted_pred_flag));
387 u(2, vpic_field(weighted_bipred_idc));
389 se(vpic->pic_init_qp - 26, pic_init_qp_minus26);
390 se(mseq_var(pic_init_qs_minus26));
391 se(vpic_var(chroma_qp_index_offset));
393 u(1, vpic_field(deblocking_filter_control_present_flag));
394 u(1, vpic_field(constrained_intra_pred_flag));
395 u(1, vpic_field(redundant_pic_cnt_present_flag));
396 u(1, vpic_field(transform_8x8_mode_flag));
398 u(1, vpic_field(pic_scaling_matrix_present_flag));
399 if (vpic->pic_fields.bits.pic_scaling_matrix_present_flag) {
400 av_assert0(0 && "scaling matrices not supported");
403 se(vpic_var(second_chroma_qp_index_offset));
405 vaapi_encode_h264_write_trailing_rbsp(pbc);
408 static void vaapi_encode_h264_write_slice_header2(PutBitContext *pbc,
409 VAAPIEncodeContext *ctx,
410 VAAPIEncodePicture *pic,
411 VAAPIEncodeSlice *slice)
413 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
414 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
415 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
416 VAAPIEncodeH264Context *priv = ctx->priv_data;
417 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
418 VAAPIEncodeH264Slice *pslice = slice->priv_data;
419 VAAPIEncodeH264MiscSliceParams *mslice = &pslice->misc_slice_params;
421 vaapi_encode_h264_write_nal_header(pbc, mslice->nal_unit_type,
422 mslice->nal_ref_idc);
424 ue(vslice->macroblock_address, first_mb_in_slice);
425 ue(vslice_var(slice_type));
426 ue(vpic_var(pic_parameter_set_id));
428 if (mseq->separate_colour_plane_flag) {
429 u(2, mslice_var(colour_plane_id));
432 u(4 + vseq->seq_fields.bits.log2_max_frame_num_minus4,
434 ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1)),
437 if (!vseq->seq_fields.bits.frame_mbs_only_flag) {
438 u(1, mslice_var(field_pic_flag));
439 if (mslice->field_pic_flag)
440 u(1, mslice_var(bottom_field_flag));
443 if (vpic->pic_fields.bits.idr_pic_flag) {
444 ue(vslice_var(idr_pic_id));
447 if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
448 u(4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4,
449 vslice_var(pic_order_cnt_lsb));
450 if (mseq->bottom_field_pic_order_in_frame_present_flag &&
451 !mslice->field_pic_flag) {
452 se(vslice_var(delta_pic_order_cnt_bottom));
456 if (vseq->seq_fields.bits.pic_order_cnt_type == 1 &&
457 !vseq->seq_fields.bits.delta_pic_order_always_zero_flag) {
458 se(vslice_var(delta_pic_order_cnt[0]));
459 if (mseq->bottom_field_pic_order_in_frame_present_flag &&
460 !mslice->field_pic_flag) {
461 se(vslice_var(delta_pic_order_cnt[1]));
465 if (vpic->pic_fields.bits.redundant_pic_cnt_present_flag) {
466 ue(mslice_var(redundant_pic_cnt));
469 if (vslice->slice_type == SLICE_TYPE_B) {
470 u(1, vslice_var(direct_spatial_mv_pred_flag));
473 if (vslice->slice_type == SLICE_TYPE_P ||
474 vslice->slice_type == SLICE_TYPE_SP ||
475 vslice->slice_type == SLICE_TYPE_B) {
476 u(1, vslice_var(num_ref_idx_active_override_flag));
477 if (vslice->num_ref_idx_active_override_flag) {
478 ue(vslice_var(num_ref_idx_l0_active_minus1));
479 if (vslice->slice_type == SLICE_TYPE_B)
480 ue(vslice_var(num_ref_idx_l1_active_minus1));
484 if (mslice->nal_unit_type == 20 || mslice->nal_unit_type == 21) {
485 av_assert0(0 && "no MVC support");
487 if (vslice->slice_type % 5 != 2 && vslice->slice_type % 5 != 4) {
488 u(1, mslice_var(ref_pic_list_modification_flag_l0));
489 if (mslice->ref_pic_list_modification_flag_l0) {
490 av_assert0(0 && "ref pic list modification");
493 if (vslice->slice_type % 5 == 1) {
494 u(1, mslice_var(ref_pic_list_modification_flag_l1));
495 if (mslice->ref_pic_list_modification_flag_l1) {
496 av_assert0(0 && "ref pic list modification");
501 if ((vpic->pic_fields.bits.weighted_pred_flag &&
502 (vslice->slice_type == SLICE_TYPE_P ||
503 vslice->slice_type == SLICE_TYPE_SP)) ||
504 (vpic->pic_fields.bits.weighted_bipred_idc == 1 &&
505 vslice->slice_type == SLICE_TYPE_B)) {
506 av_assert0(0 && "prediction weights not supported");
509 av_assert0(mslice->nal_ref_idc > 0 ==
510 vpic->pic_fields.bits.reference_pic_flag);
511 if (mslice->nal_ref_idc != 0) {
512 if (vpic->pic_fields.bits.idr_pic_flag) {
513 u(1, mslice_var(no_output_of_prior_pics_flag));
514 u(1, mslice_var(long_term_reference_flag));
516 u(1, mslice_var(adaptive_ref_pic_marking_mode_flag));
517 if (mslice->adaptive_ref_pic_marking_mode_flag) {
518 av_assert0(0 && "MMCOs not supported");
523 if (vpic->pic_fields.bits.entropy_coding_mode_flag &&
524 vslice->slice_type != SLICE_TYPE_I &&
525 vslice->slice_type != SLICE_TYPE_SI) {
526 ue(vslice_var(cabac_init_idc));
529 se(vslice_var(slice_qp_delta));
530 if (vslice->slice_type == SLICE_TYPE_SP ||
531 vslice->slice_type == SLICE_TYPE_SI) {
532 if (vslice->slice_type == SLICE_TYPE_SP)
533 u(1, mslice_var(sp_for_switch_flag));
534 se(mslice_var(slice_qs_delta));
537 if (vpic->pic_fields.bits.deblocking_filter_control_present_flag) {
538 ue(vslice_var(disable_deblocking_filter_idc));
539 if (vslice->disable_deblocking_filter_idc != 1) {
540 se(vslice_var(slice_alpha_c0_offset_div2));
541 se(vslice_var(slice_beta_offset_div2));
545 if (mseq->num_slice_groups_minus1 > 0 &&
546 mseq->slice_group_map_type >= 3 && mseq->slice_group_map_type <= 5) {
547 av_assert0(0 && "slice groups not supported");
550 // No alignment - this need not be a byte boundary.
553 static void vaapi_encode_h264_write_buffering_period(PutBitContext *pbc,
554 VAAPIEncodeContext *ctx,
555 VAAPIEncodePicture *pic)
557 VAAPIEncodeH264Context *priv = ctx->priv_data;
558 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
559 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
562 ue(vpic_var(seq_parameter_set_id));
564 if (mseq->nal_hrd_parameters_present_flag) {
565 for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
566 u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
567 mseq_var(initial_cpb_removal_delay));
568 u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
569 mseq_var(initial_cpb_removal_delay_offset));
572 if (mseq->vcl_hrd_parameters_present_flag) {
573 av_assert0(0 && "vcl hrd parameters not supported");
577 static void vaapi_encode_h264_write_pic_timing(PutBitContext *pbc,
578 VAAPIEncodeContext *ctx,
579 VAAPIEncodePicture *pic)
581 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
582 VAAPIEncodeH264Context *priv = ctx->priv_data;
583 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
586 if (mseq->nal_hrd_parameters_present_flag ||
587 mseq->vcl_hrd_parameters_present_flag) {
588 u(mseq->cpb_removal_delay_length_minus1 + 1,
589 2 * vseq->num_units_in_tick * priv->cpb_delay,
591 u(mseq->dpb_output_delay_length_minus1 + 1,
592 2 * vseq->num_units_in_tick * priv->dpb_delay,
595 if (mseq->pic_struct_present_flag) {
596 u(4, mseq_var(pic_struct));
597 num_clock_ts = (mseq->pic_struct <= 2 ? 1 :
598 mseq->pic_struct <= 4 ? 2 :
599 mseq->pic_struct <= 8 ? 3 : 0);
600 for (i = 0; i < num_clock_ts; i++) {
601 u(1, 0, clock_timestamp_flag[i]);
602 // No full timestamp information.
607 static void vaapi_encode_h264_write_identifier(PutBitContext *pbc,
608 VAAPIEncodeContext *ctx,
609 VAAPIEncodePicture *pic)
611 const char *lavc = LIBAVCODEC_IDENT;
612 const char *vaapi = VA_VERSION_S;
613 const char *driver = vaQueryVendorString(ctx->hwctx->display);
617 // Random (version 4) ISO 11578 UUID.
619 0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
620 0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
623 for (i = 0; i < 16; i++)
624 u(8, uuid[i], uuid_iso_iec_11578);
626 snprintf(tmp, sizeof(tmp), "%s / VAAPI %s / %s", lavc, vaapi, driver);
627 for (i = 0; i < sizeof(tmp) && tmp[i]; i++)
628 u(8, tmp[i], user_data_payload_byte);
631 static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
632 VAAPIEncodeContext *ctx,
633 VAAPIEncodePicture *pic)
635 VAAPIEncodeH264Context *priv = ctx->priv_data;
636 PutBitContext payload_bits;
638 int payload_type, payload_size, i;
639 void (*write_payload)(PutBitContext *pbc,
640 VAAPIEncodeContext *ctx,
641 VAAPIEncodePicture *pic) = NULL;
643 vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SEI, 0);
645 for (payload_type = 0; payload_type < 64; payload_type++) {
646 switch (payload_type) {
647 case H264_SEI_TYPE_BUFFERING_PERIOD:
648 if (!priv->send_timing_sei ||
649 pic->type != PICTURE_TYPE_IDR)
651 write_payload = &vaapi_encode_h264_write_buffering_period;
653 case H264_SEI_TYPE_PIC_TIMING:
654 if (!priv->send_timing_sei)
656 write_payload = &vaapi_encode_h264_write_pic_timing;
658 case H264_SEI_TYPE_USER_DATA_UNREGISTERED:
659 if (pic->encode_order != 0)
661 write_payload = &vaapi_encode_h264_write_identifier;
667 init_put_bits(&payload_bits, payload, sizeof(payload));
668 write_payload(&payload_bits, ctx, pic);
669 if (put_bits_count(&payload_bits) & 7) {
670 write_u(&payload_bits, 1, 1, bit_equal_to_one);
671 while (put_bits_count(&payload_bits) & 7)
672 write_u(&payload_bits, 1, 0, bit_equal_to_zero);
674 payload_size = put_bits_count(&payload_bits) / 8;
675 flush_put_bits(&payload_bits);
677 u(8, payload_type, last_payload_type_byte);
678 u(8, payload_size, last_payload_size_byte);
679 for (i = 0; i < payload_size; i++)
680 u(8, payload[i] & 0xff, sei_payload);
683 vaapi_encode_h264_write_trailing_rbsp(pbc);
686 static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx,
687 char *data, size_t *data_len)
689 VAAPIEncodeContext *ctx = avctx->priv_data;
693 size_t nal_len, bit_len, bit_pos, next_len;
698 init_put_bits(&pbc, tmp, sizeof(tmp));
699 vaapi_encode_h264_write_sps(&pbc, ctx);
700 nal_len = put_bits_count(&pbc);
701 flush_put_bits(&pbc);
703 next_len = bit_len - bit_pos;
704 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
711 init_put_bits(&pbc, tmp, sizeof(tmp));
712 vaapi_encode_h264_write_pps(&pbc, ctx);
713 nal_len = put_bits_count(&pbc);
714 flush_put_bits(&pbc);
716 next_len = bit_len - bit_pos;
717 err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
728 static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx,
729 VAAPIEncodePicture *pic,
730 VAAPIEncodeSlice *slice,
731 char *data, size_t *data_len)
733 VAAPIEncodeContext *ctx = avctx->priv_data;
738 init_put_bits(&pbc, tmp, sizeof(tmp));
739 vaapi_encode_h264_write_slice_header2(&pbc, ctx, pic, slice);
740 header_len = put_bits_count(&pbc);
741 flush_put_bits(&pbc);
743 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
747 static int vaapi_encode_h264_write_extra_header(AVCodecContext *avctx,
748 VAAPIEncodePicture *pic,
749 int index, int *type,
750 char *data, size_t *data_len)
752 VAAPIEncodeContext *ctx = avctx->priv_data;
757 if (index == 0 && ctx->va_rc_mode == VA_RC_CBR) {
758 *type = VAEncPackedHeaderH264_SEI;
760 init_put_bits(&pbc, tmp, sizeof(tmp));
761 vaapi_encode_h264_write_sei(&pbc, ctx, pic);
762 header_len = put_bits_count(&pbc);
763 flush_put_bits(&pbc);
765 return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
773 static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
775 VAAPIEncodeContext *ctx = avctx->priv_data;
776 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
777 VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params;
778 VAAPIEncodeH264Context *priv = ctx->priv_data;
779 VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
780 VAAPIEncodeH264Options *opt =
781 (VAAPIEncodeH264Options*)ctx->codec_options_data;
785 vseq->seq_parameter_set_id = 0;
787 vseq->level_idc = avctx->level;
789 vseq->max_num_ref_frames = 1 + (avctx->max_b_frames > 0);
791 vseq->picture_width_in_mbs = priv->mb_width;
792 vseq->picture_height_in_mbs = priv->mb_height;
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 vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 =
800 av_clip(av_log2(avctx->max_b_frames + 1) - 2, 0, 12);
802 if (avctx->width != ctx->surface_width ||
803 avctx->height != ctx->surface_height) {
804 vseq->frame_cropping_flag = 1;
806 vseq->frame_crop_left_offset = 0;
807 vseq->frame_crop_right_offset =
808 (ctx->surface_width - avctx->width) / 2;
809 vseq->frame_crop_top_offset = 0;
810 vseq->frame_crop_bottom_offset =
811 (ctx->surface_height - avctx->height) / 2;
813 vseq->frame_cropping_flag = 0;
816 vseq->vui_parameters_present_flag = 1;
817 if (avctx->sample_aspect_ratio.num != 0) {
818 vseq->vui_fields.bits.aspect_ratio_info_present_flag = 1;
819 // There is a large enum of these which we could support
820 // individually rather than using the generic X/Y form?
821 if (avctx->sample_aspect_ratio.num ==
822 avctx->sample_aspect_ratio.den) {
823 vseq->aspect_ratio_idc = 1;
825 vseq->aspect_ratio_idc = 255; // Extended SAR.
826 vseq->sar_width = avctx->sample_aspect_ratio.num;
827 vseq->sar_height = avctx->sample_aspect_ratio.den;
830 if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
831 avctx->color_trc != AVCOL_TRC_UNSPECIFIED ||
832 avctx->colorspace != AVCOL_SPC_UNSPECIFIED) {
833 mseq->video_signal_type_present_flag = 1;
834 mseq->video_format = 5; // Unspecified.
835 mseq->video_full_range_flag = 0;
836 mseq->colour_description_present_flag = 1;
837 // These enums are derived from the standard and hence
838 // we can just use the values directly.
839 mseq->colour_primaries = avctx->color_primaries;
840 mseq->transfer_characteristics = avctx->color_trc;
841 mseq->matrix_coefficients = avctx->colorspace;
844 vseq->vui_fields.bits.bitstream_restriction_flag = 1;
845 mseq->motion_vectors_over_pic_boundaries_flag = 1;
846 mseq->max_bytes_per_pic_denom = 0;
847 mseq->max_bits_per_mb_denom = 0;
848 vseq->vui_fields.bits.log2_max_mv_length_horizontal = 16;
849 vseq->vui_fields.bits.log2_max_mv_length_vertical = 16;
851 mseq->max_num_reorder_frames = (avctx->max_b_frames > 0);
852 mseq->max_dec_pic_buffering = vseq->max_num_ref_frames;
854 vseq->bits_per_second = avctx->bit_rate;
856 vseq->vui_fields.bits.timing_info_present_flag = 1;
857 if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
858 vseq->num_units_in_tick = avctx->framerate.den;
859 vseq->time_scale = 2 * avctx->framerate.num;
860 mseq->fixed_frame_rate_flag = 1;
862 vseq->num_units_in_tick = avctx->time_base.num;
863 vseq->time_scale = 2 * avctx->time_base.den;
864 mseq->fixed_frame_rate_flag = 0;
867 if (ctx->va_rc_mode == VA_RC_CBR) {
868 priv->send_timing_sei = 1;
869 mseq->nal_hrd_parameters_present_flag = 1;
871 mseq->cpb_cnt_minus1 = 0;
873 // Try to scale these to a sensible range so that the
874 // golomb encode of the value is not overlong.
875 mseq->bit_rate_scale =
876 av_clip_uintp2(av_log2(avctx->bit_rate) - 15 - 6, 4);
877 mseq->bit_rate_value_minus1[0] =
878 (avctx->bit_rate >> mseq->bit_rate_scale + 6) - 1;
880 mseq->cpb_size_scale =
881 av_clip_uintp2(av_log2(ctx->hrd_params.hrd.buffer_size) - 15 - 4, 4);
882 mseq->cpb_size_value_minus1[0] =
883 (ctx->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale + 4) - 1;
885 // CBR mode isn't actually available here, despite naming.
886 mseq->cbr_flag[0] = 0;
888 mseq->initial_cpb_removal_delay_length_minus1 = 23;
889 mseq->cpb_removal_delay_length_minus1 = 23;
890 mseq->dpb_output_delay_length_minus1 = 7;
891 mseq->time_offset_length = 0;
893 // This calculation can easily overflow 32 bits.
894 mseq->initial_cpb_removal_delay = 90000 *
895 (uint64_t)ctx->hrd_params.hrd.initial_buffer_fullness /
896 ctx->hrd_params.hrd.buffer_size;
898 mseq->initial_cpb_removal_delay_offset = 0;
900 priv->send_timing_sei = 0;
901 mseq->nal_hrd_parameters_present_flag = 0;
904 vseq->intra_period = avctx->gop_size;
905 vseq->intra_idr_period = avctx->gop_size;
906 vseq->ip_period = ctx->b_per_p + 1;
910 vpic->CurrPic.picture_id = VA_INVALID_ID;
911 vpic->CurrPic.flags = VA_PICTURE_H264_INVALID;
913 for (i = 0; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
914 vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
915 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
918 vpic->coded_buf = VA_INVALID_ID;
920 vpic->pic_parameter_set_id = 0;
921 vpic->seq_parameter_set_id = 0;
923 vpic->num_ref_idx_l0_active_minus1 = 0;
924 vpic->num_ref_idx_l1_active_minus1 = 0;
926 vpic->pic_fields.bits.entropy_coding_mode_flag =
927 opt->coder ? ((avctx->profile & 0xff) != 66) : 0;
928 vpic->pic_fields.bits.weighted_pred_flag = 0;
929 vpic->pic_fields.bits.weighted_bipred_idc = 0;
930 vpic->pic_fields.bits.transform_8x8_mode_flag =
931 ((avctx->profile & 0xff) >= 100);
933 vpic->pic_init_qp = priv->fixed_qp_idr;
937 mseq->profile_idc = avctx->profile & 0xff;
939 if (avctx->profile & FF_PROFILE_H264_CONSTRAINED)
940 mseq->constraint_set1_flag = 1;
941 if (avctx->profile & FF_PROFILE_H264_INTRA)
942 mseq->constraint_set3_flag = 1;
948 static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
949 VAAPIEncodePicture *pic)
951 VAAPIEncodeContext *ctx = avctx->priv_data;
952 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
953 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
954 VAAPIEncodeH264Context *priv = ctx->priv_data;
957 if (pic->type == PICTURE_TYPE_IDR) {
958 av_assert0(pic->display_order == pic->encode_order);
960 priv->next_frame_num = 1;
962 priv->last_idr_frame = pic->display_order;
964 vpic->frame_num = priv->next_frame_num;
965 if (pic->type != PICTURE_TYPE_B) {
967 ++priv->next_frame_num;
971 priv->dpb_delay = pic->display_order - pic->encode_order + 1;
973 vpic->frame_num = vpic->frame_num &
974 ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1);
976 vpic->CurrPic.picture_id = pic->recon_surface;
977 vpic->CurrPic.frame_idx = vpic->frame_num;
978 vpic->CurrPic.flags = 0;
979 vpic->CurrPic.TopFieldOrderCnt = pic->display_order - priv->last_idr_frame;
980 vpic->CurrPic.BottomFieldOrderCnt = pic->display_order - priv->last_idr_frame;
982 for (i = 0; i < pic->nb_refs; i++) {
983 VAAPIEncodePicture *ref = pic->refs[i];
984 av_assert0(ref && ref->encode_order < pic->encode_order);
985 vpic->ReferenceFrames[i].picture_id = ref->recon_surface;
986 vpic->ReferenceFrames[i].frame_idx = ref->encode_order;
987 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
988 vpic->ReferenceFrames[i].TopFieldOrderCnt = ref->display_order - priv->last_idr_frame;
989 vpic->ReferenceFrames[i].BottomFieldOrderCnt = ref->display_order - priv->last_idr_frame;
991 for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
992 vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
993 vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
996 vpic->coded_buf = pic->output_buffer;
998 vpic->pic_fields.bits.idr_pic_flag = (pic->type == PICTURE_TYPE_IDR);
999 vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
1006 static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
1007 VAAPIEncodePicture *pic,
1008 VAAPIEncodeSlice *slice)
1010 VAAPIEncodeContext *ctx = avctx->priv_data;
1011 VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
1012 VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params;
1013 VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params;
1014 VAAPIEncodeH264Context *priv = ctx->priv_data;
1015 VAAPIEncodeH264Slice *pslice;
1016 VAAPIEncodeH264MiscSliceParams *mslice;
1019 slice->priv_data = av_mallocz(sizeof(*pslice));
1020 if (!slice->priv_data)
1021 return AVERROR(ENOMEM);
1022 pslice = slice->priv_data;
1023 mslice = &pslice->misc_slice_params;
1025 if (pic->type == PICTURE_TYPE_IDR)
1026 mslice->nal_unit_type = H264_NAL_IDR_SLICE;
1028 mslice->nal_unit_type = H264_NAL_SLICE;
1030 switch (pic->type) {
1031 case PICTURE_TYPE_IDR:
1032 vslice->slice_type = SLICE_TYPE_I;
1033 mslice->nal_ref_idc = 3;
1035 case PICTURE_TYPE_I:
1036 vslice->slice_type = SLICE_TYPE_I;
1037 mslice->nal_ref_idc = 2;
1039 case PICTURE_TYPE_P:
1040 vslice->slice_type = SLICE_TYPE_P;
1041 mslice->nal_ref_idc = 1;
1043 case PICTURE_TYPE_B:
1044 vslice->slice_type = SLICE_TYPE_B;
1045 mslice->nal_ref_idc = 0;
1048 av_assert0(0 && "invalid picture type");
1051 // Only one slice per frame.
1052 vslice->macroblock_address = 0;
1053 vslice->num_macroblocks = priv->mb_width * priv->mb_height;
1055 vslice->macroblock_info = VA_INVALID_ID;
1057 vslice->pic_parameter_set_id = vpic->pic_parameter_set_id;
1058 vslice->idr_pic_id = priv->idr_pic_count++;
1060 vslice->pic_order_cnt_lsb = (pic->display_order - priv->last_idr_frame) &
1061 ((1 << (4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4)) - 1);
1063 for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
1064 vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
1065 vslice->RefPicList0[i].flags = VA_PICTURE_H264_INVALID;
1066 vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
1067 vslice->RefPicList1[i].flags = VA_PICTURE_H264_INVALID;
1070 av_assert0(pic->nb_refs <= 2);
1071 if (pic->nb_refs >= 1) {
1072 // Backward reference for P- or B-frame.
1073 av_assert0(pic->type == PICTURE_TYPE_P ||
1074 pic->type == PICTURE_TYPE_B);
1076 vslice->num_ref_idx_l0_active_minus1 = 0;
1077 vslice->RefPicList0[0] = vpic->ReferenceFrames[0];
1079 if (pic->nb_refs >= 2) {
1080 // Forward reference for B-frame.
1081 av_assert0(pic->type == PICTURE_TYPE_B);
1083 vslice->num_ref_idx_l1_active_minus1 = 0;
1084 vslice->RefPicList1[0] = vpic->ReferenceFrames[1];
1087 if (pic->type == PICTURE_TYPE_B)
1088 vslice->slice_qp_delta = priv->fixed_qp_b - vpic->pic_init_qp;
1089 else if (pic->type == PICTURE_TYPE_P)
1090 vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp;
1092 vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp;
1094 vslice->direct_spatial_mv_pred_flag = 1;
1099 static av_cold int vaapi_encode_h264_configure(AVCodecContext *avctx)
1101 VAAPIEncodeContext *ctx = avctx->priv_data;
1102 VAAPIEncodeH264Context *priv = ctx->priv_data;
1103 VAAPIEncodeH264Options *opt = ctx->codec_options;
1105 priv->mb_width = FFALIGN(avctx->width, 16) / 16;
1106 priv->mb_height = FFALIGN(avctx->height, 16) / 16;
1108 if (ctx->va_rc_mode == VA_RC_CQP) {
1109 priv->fixed_qp_p = opt->qp;
1110 if (avctx->i_quant_factor > 0.0)
1111 priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
1112 avctx->i_quant_offset) + 0.5);
1114 priv->fixed_qp_idr = priv->fixed_qp_p;
1115 if (avctx->b_quant_factor > 0.0)
1116 priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
1117 avctx->b_quant_offset) + 0.5);
1119 priv->fixed_qp_b = priv->fixed_qp_p;
1121 av_log(avctx, AV_LOG_DEBUG, "Using fixed QP = "
1122 "%d / %d / %d for IDR- / P- / B-frames.\n",
1123 priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
1125 } else if (ctx->va_rc_mode == VA_RC_CBR ||
1126 ctx->va_rc_mode == VA_RC_VBR) {
1127 // These still need to be set for pic_init_qp/slice_qp_delta.
1128 priv->fixed_qp_idr = 26;
1129 priv->fixed_qp_p = 26;
1130 priv->fixed_qp_b = 26;
1132 av_log(avctx, AV_LOG_DEBUG, "Using %s-bitrate = %"PRId64" bps.\n",
1133 ctx->va_rc_mode == VA_RC_CBR ? "constant" : "variable",
1137 av_assert0(0 && "Invalid RC mode.");
1140 if (avctx->compression_level == FF_COMPRESSION_DEFAULT)
1141 avctx->compression_level = opt->quality;
1146 static const VAAPIEncodeType vaapi_encode_type_h264 = {
1147 .priv_data_size = sizeof(VAAPIEncodeH264Context),
1149 .configure = &vaapi_encode_h264_configure,
1151 .sequence_params_size = sizeof(VAEncSequenceParameterBufferH264),
1152 .init_sequence_params = &vaapi_encode_h264_init_sequence_params,
1154 .picture_params_size = sizeof(VAEncPictureParameterBufferH264),
1155 .init_picture_params = &vaapi_encode_h264_init_picture_params,
1157 .slice_params_size = sizeof(VAEncSliceParameterBufferH264),
1158 .init_slice_params = &vaapi_encode_h264_init_slice_params,
1160 .sequence_header_type = VAEncPackedHeaderSequence,
1161 .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
1163 .slice_header_type = VAEncPackedHeaderH264_Slice,
1164 .write_slice_header = &vaapi_encode_h264_write_slice_header,
1166 .write_extra_header = &vaapi_encode_h264_write_extra_header,
1169 static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
1171 VAAPIEncodeContext *ctx = avctx->priv_data;
1172 VAAPIEncodeH264Options *opt =
1173 (VAAPIEncodeH264Options*)ctx->codec_options_data;
1175 ctx->codec = &vaapi_encode_type_h264;
1177 switch (avctx->profile) {
1178 case FF_PROFILE_H264_CONSTRAINED_BASELINE:
1179 ctx->va_profile = VAProfileH264ConstrainedBaseline;
1180 if (avctx->max_b_frames != 0) {
1181 avctx->max_b_frames = 0;
1182 av_log(avctx, AV_LOG_WARNING, "H.264 constrained baseline profile "
1183 "doesn't support encoding with B frames, disabling them.\n");
1186 case FF_PROFILE_H264_BASELINE:
1187 ctx->va_profile = VAProfileH264Baseline;
1188 if (avctx->max_b_frames != 0) {
1189 avctx->max_b_frames = 0;
1190 av_log(avctx, AV_LOG_WARNING, "H.264 baseline profile "
1191 "doesn't support encoding with B frames, disabling them.\n");
1194 case FF_PROFILE_H264_MAIN:
1195 ctx->va_profile = VAProfileH264Main;
1197 case FF_PROFILE_H264_EXTENDED:
1198 av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
1199 "is not supported.\n");
1200 return AVERROR_PATCHWELCOME;
1201 case FF_PROFILE_UNKNOWN:
1202 case FF_PROFILE_H264_HIGH:
1203 ctx->va_profile = VAProfileH264High;
1205 case FF_PROFILE_H264_HIGH_10:
1206 case FF_PROFILE_H264_HIGH_10_INTRA:
1207 av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
1208 "are not supported.\n");
1209 return AVERROR_PATCHWELCOME;
1210 case FF_PROFILE_H264_HIGH_422:
1211 case FF_PROFILE_H264_HIGH_422_INTRA:
1212 case FF_PROFILE_H264_HIGH_444:
1213 case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
1214 case FF_PROFILE_H264_HIGH_444_INTRA:
1215 case FF_PROFILE_H264_CAVLC_444:
1216 av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
1217 "are not supported.\n");
1218 return AVERROR_PATCHWELCOME;
1220 av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
1222 return AVERROR(EINVAL);
1224 if (opt->low_power) {
1225 #if VA_CHECK_VERSION(0, 39, 2)
1226 ctx->va_entrypoint = VAEntrypointEncSliceLP;
1228 av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
1229 "supported with this VAAPI version.\n");
1230 return AVERROR(EINVAL);
1233 ctx->va_entrypoint = VAEntrypointEncSlice;
1236 // Only 8-bit encode is supported.
1237 ctx->va_rt_format = VA_RT_FORMAT_YUV420;
1239 if (avctx->bit_rate > 0) {
1240 if (avctx->rc_max_rate == avctx->bit_rate)
1241 ctx->va_rc_mode = VA_RC_CBR;
1243 ctx->va_rc_mode = VA_RC_VBR;
1245 ctx->va_rc_mode = VA_RC_CQP;
1247 ctx->va_packed_headers =
1248 VA_ENC_PACKED_HEADER_SEQUENCE | // SPS and PPS.
1249 VA_ENC_PACKED_HEADER_SLICE | // Slice headers.
1250 VA_ENC_PACKED_HEADER_MISC; // SEI.
1252 ctx->surface_width = FFALIGN(avctx->width, 16);
1253 ctx->surface_height = FFALIGN(avctx->height, 16);
1255 return ff_vaapi_encode_init(avctx);
1258 #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
1259 offsetof(VAAPIEncodeH264Options, x))
1260 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
1261 static const AVOption vaapi_encode_h264_options[] = {
1262 { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
1263 OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
1264 { "quality", "Set encode quality (trades off against speed, higher is faster)",
1265 OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
1266 { "low_power", "Use low-power encoding mode (experimental: only supported "
1267 "on some platforms, does not support all features)",
1268 OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
1269 { "coder", "Entropy coder type",
1270 OFFSET(coder), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS, "coder" },
1271 { "cavlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1272 { "cabac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1273 { "vlc", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1274 { "ac", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, FLAGS, "coder" },
1278 static const AVCodecDefault vaapi_encode_h264_defaults[] = {
1279 { "profile", "100" },
1284 { "i_qfactor", "1" },
1285 { "i_qoffset", "0" },
1286 { "b_qfactor", "6/5" },
1287 { "b_qoffset", "0" },
1292 static const AVClass vaapi_encode_h264_class = {
1293 .class_name = "h264_vaapi",
1294 .item_name = av_default_item_name,
1295 .option = vaapi_encode_h264_options,
1296 .version = LIBAVUTIL_VERSION_INT,
1299 AVCodec ff_h264_vaapi_encoder = {
1300 .name = "h264_vaapi",
1301 .long_name = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
1302 .type = AVMEDIA_TYPE_VIDEO,
1303 .id = AV_CODEC_ID_H264,
1304 .priv_data_size = (sizeof(VAAPIEncodeContext) +
1305 sizeof(VAAPIEncodeH264Options)),
1306 .init = &vaapi_encode_h264_init,
1307 .encode2 = &ff_vaapi_encode2,
1308 .close = &ff_vaapi_encode_close,
1309 .priv_class = &vaapi_encode_h264_class,
1310 .capabilities = AV_CODEC_CAP_DELAY,
1311 .defaults = vaapi_encode_h264_defaults,
1312 .pix_fmts = (const enum AVPixelFormat[]) {