falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43067 Commits
32 Branches
850MB
Tree: b5f47d95c6
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'b5f47d95c6'
${ noResults }
FFmpeg/libavcodec/vaapi_encode_h265.c

1258 lines
46KB
Raw Blame History 

  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_hevc.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"

  28. #include "hevc.h"

  29. #include "internal.h"

  30. #include "put_bits.h"

  31. #include "vaapi_encode.h"

  32. #include "vaapi_encode_h26x.h"

  33. 

  34. 

  35. #define MAX_ST_REF_PIC_SETS  32

  36. #define MAX_DPB_PICS         16

  37. #define MAX_LAYERS            1

  38. 

  39. 

  40. typedef struct VAAPIEncodeH265STRPS {

  41.     char inter_ref_pic_set_prediction_flag;

  42. 

  43.     unsigned int num_negative_pics;

  44.     unsigned int num_positive_pics;

  45. 

  46.     unsigned int delta_poc_s0_minus1[MAX_DPB_PICS];

  47.     char used_by_curr_pic_s0_flag[MAX_DPB_PICS];

  48. 

  49.     unsigned int delta_poc_s1_minus1[MAX_DPB_PICS];

  50.     char used_by_curr_pic_s1_flag[MAX_DPB_PICS];

  51. } VAAPIEncodeH265STRPS;

  52. 

  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 {

  56. 

  57.     // Parameter set IDs.

  58.     unsigned int video_parameter_set_id;

  59.     unsigned int seq_parameter_set_id;

  60. 

  61.     // Layering.

  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];

  70. 

  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;

  78. 

  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];

  89. 

  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;

  96. 

  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;

  103. 

  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];

  107. 

  108.     // Long-term reference pictures.

  109.     char long_term_ref_pics_present_flag;

  110.     unsigned int num_long_term_ref_pics_sps;

  111.     struct {

  112.         unsigned int lt_ref_pic_poc_lsb_sps;

  113.         char used_by_curr_pic_lt_sps_flag;

  114.     } lt_ref_pic;

  115. 

  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;

  122. 

  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;

  136. 

  137.     // Oddments.

  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;

  146. 

  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 {

  150.     // Slice segments.

  151.     char first_slice_segment_in_pic_flag;

  152.     unsigned int slice_segment_address;

  153. 

  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;

  158. 

  159.     // Deblocking filter.

  160.     char deblocking_filter_override_flag;

  161. 

  162.     // Oddments.

  163.     char slice_reserved_flag[8];

  164.     char no_output_of_prior_pics_flag;

  165.     char pic_output_flag;

  166. } VAAPIEncodeH265MiscSliceParams;

  167. 

  168. typedef struct VAAPIEncodeH265Slice {

  169.     VAAPIEncodeH265MiscSliceParams misc_slice_params;

  170. 

  171.     int64_t pic_order_cnt;

  172. } VAAPIEncodeH265Slice;

  173. 

  174. typedef struct VAAPIEncodeH265Context {

  175.     VAAPIEncodeH265MiscSequenceParams misc_sequence_params;

  176. 

  177.     unsigned int ctu_width;

  178.     unsigned int ctu_height;

  179. 

  180.     int fixed_qp_idr;

  181.     int fixed_qp_p;

  182.     int fixed_qp_b;

  183. 

  184.     int64_t last_idr_frame;

  185. } VAAPIEncodeH265Context;

  186. 

  187. 

  188. #define vseq_var(name)     vseq->name, name

  189. #define vseq_field(name)   vseq->seq_fields.bits.name, name

  190. #define vpic_var(name)     vpic->name, name

  191. #define vpic_field(name)   vpic->pic_fields.bits.name, name

  192. #define vslice_var(name)   vslice->name, name

  193. #define vslice_field(name) vslice->slice_fields.bits.name, name

  194. #define mseq_var(name)     mseq->name, name

  195. #define mslice_var(name)   mslice->name, name

  196. #define mstrps_var(name)   mstrps->name, name

  197. 

  198. static void vaapi_encode_h265_write_nal_unit_header(PutBitContext *pbc,

  199.                                                     int nal_unit_type)

  200. {

  201.     u(1, 0, forbidden_zero_bit);

  202.     u(6, nal_unit_type, nal_unit_type);

  203.     u(6, 0, nuh_layer_id);

  204.     u(3, 1, nuh_temporal_id_plus1);

  205. }

  206. 

  207. static void vaapi_encode_h265_write_rbsp_trailing_bits(PutBitContext *pbc)

  208. {

  209.     u(1, 1, rbsp_stop_one_bit);

  210.     while (put_bits_count(pbc) & 7)

  211.         u(1, 0, rbsp_alignment_zero_bit);

  212. }

  213. 

  214. static void vaapi_encode_h265_write_profile_tier_level(PutBitContext *pbc,

  215.                                                        VAAPIEncodeContext *ctx)

  216. {

  217.     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;

  218.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  219.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  220.     int j;

  221. 

  222.     if (1) {

  223.         u(2, 0, general_profile_space);

  224.         u(1, vseq_var(general_tier_flag));

  225.         u(5, vseq_var(general_profile_idc));

  226. 

  227.         for (j = 0; j < 32; j++) {

  228.             u(1, mseq_var(general_profile_compatibility_flag[j]));

  229.         }

  230. 

  231.         u(1, mseq_var(general_progressive_source_flag));

  232.         u(1, mseq_var(general_interlaced_source_flag));

  233.         u(1, mseq_var(general_non_packed_constraint_flag));

  234.         u(1, mseq_var(general_frame_only_constraint_flag));

  235. 

  236.         if (0) {

  237.             // Not main profile.

  238.             // Lots of extra constraint flags.

  239.         } else {

  240.             // put_bits only handles up to 31 bits.

  241.             u(23, 0, general_reserved_zero_43bits);

  242.             u(20, 0, general_reserved_zero_43bits);

  243.         }

  244. 

  245.         if (vseq->general_profile_idc >= 1 && vseq->general_profile_idc <= 5) {

  246.             u(1, mseq_var(general_inbld_flag));

  247.         } else {

  248.             u(1, 0, general_reserved_zero_bit);

  249.         }

  250.     }

  251. 

  252.     u(8, vseq_var(general_level_idc));

  253. 

  254.     // No sublayers.

  255. }

  256. 

  257. static void vaapi_encode_h265_write_vps(PutBitContext *pbc,

  258.                                         VAAPIEncodeContext *ctx)

  259. {

  260.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  261.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  262.     int i, j;

  263. 

  264.     vaapi_encode_h265_write_nal_unit_header(pbc, NAL_VPS);

  265. 

  266.     u(4, mseq->video_parameter_set_id, vps_video_parameter_set_id);

  267. 

  268.     u(1, 1, vps_base_layer_internal_flag);

  269.     u(1, 1, vps_base_layer_available_flag);

  270.     u(6, mseq_var(vps_max_layers_minus1));

  271.     u(3, mseq_var(vps_max_sub_layers_minus1));

  272.     u(1, mseq_var(vps_temporal_id_nesting_flag));

  273. 

  274.     u(16, 0xffff, vps_reserved_0xffff_16bits);

  275. 

  276.     vaapi_encode_h265_write_profile_tier_level(pbc, ctx);

  277. 

  278.     u(1, mseq_var(vps_sub_layer_ordering_info_present_flag));

  279.     for (i = (mseq->vps_sub_layer_ordering_info_present_flag ?

  280.               0 : mseq->vps_max_sub_layers_minus1);

  281.          i <= mseq->vps_max_sub_layers_minus1; i++) {

  282.         ue(mseq_var(vps_max_dec_pic_buffering_minus1[i]));

  283.         ue(mseq_var(vps_max_num_reorder_pics[i]));

  284.         ue(mseq_var(vps_max_latency_increase_plus1[i]));

  285.     }

  286. 

  287.     u(6, mseq_var(vps_max_layer_id));

  288.     ue(mseq_var(vps_num_layer_sets_minus1));

  289.     for (i = 1; i <= mseq->vps_num_layer_sets_minus1; i++) {

  290.         for (j = 0; j < mseq->vps_max_layer_id; j++)

  291.             u(1, mseq_var(layer_id_included_flag[i][j]));

  292.     }

  293. 

  294.     u(1, mseq_var(vps_timing_info_present_flag));

  295.     if (mseq->vps_timing_info_present_flag) {

  296.         u(1, 0, put_bits_hack_zero_bit);

  297.         u(31, mseq_var(vps_num_units_in_tick));

  298.         u(1, 0, put_bits_hack_zero_bit);

  299.         u(31, mseq_var(vps_time_scale));

  300.         u(1, mseq_var(vps_poc_proportional_to_timing_flag));

  301.         if (mseq->vps_poc_proportional_to_timing_flag) {

  302.             ue(mseq_var(vps_num_ticks_poc_diff_minus1));

  303.         }

  304.         ue(0, vps_num_hrd_parameters);

  305.     }

  306. 

  307.     u(1, 0, vps_extension_flag);

  308. 

  309.     vaapi_encode_h265_write_rbsp_trailing_bits(pbc);

  310. }

  311. 

  312. static void vaapi_encode_h265_write_st_ref_pic_set(PutBitContext *pbc,

  313.                                                    int st_rps_idx,

  314.                                                    VAAPIEncodeH265STRPS *mstrps)

  315. {

  316.     int i;

  317. 

  318.     if (st_rps_idx != 0)

  319.        u(1, mstrps_var(inter_ref_pic_set_prediction_flag));

  320. 

  321.     if (mstrps->inter_ref_pic_set_prediction_flag) {

  322.         av_assert0(0 && "inter ref pic set prediction not supported");

  323.     } else {

  324.         ue(mstrps_var(num_negative_pics));

  325.         ue(mstrps_var(num_positive_pics));

  326. 

  327.         for (i = 0; i < mstrps->num_negative_pics; i++) {

  328.             ue(mstrps_var(delta_poc_s0_minus1[i]));

  329.             u(1, mstrps_var(used_by_curr_pic_s0_flag[i]));

  330.         }

  331.         for (i = 0; i < mstrps->num_positive_pics; i++) {

  332.             ue(mstrps_var(delta_poc_s1_minus1[i]));

  333.             u(1, mstrps_var(used_by_curr_pic_s1_flag[i]));

  334.         }

  335.     }

  336. }

  337. 

  338. static void vaapi_encode_h265_write_vui_parameters(PutBitContext *pbc,

  339.                                                    VAAPIEncodeContext *ctx)

  340. {

  341.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  342.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  343. 

  344.     u(1, mseq_var(aspect_ratio_info_present_flag));

  345.     if (mseq->aspect_ratio_info_present_flag) {

  346.         u(8, mseq_var(aspect_ratio_idc));

  347.         if (mseq->aspect_ratio_idc == 255) {

  348.             u(16, mseq_var(sar_width));

  349.             u(16, mseq_var(sar_height));

  350.         }

  351.     }

  352. 

  353.     u(1, 0, overscan_info_present_flag);

  354. 

  355.     u(1, mseq_var(video_signal_type_present_flag));

  356.     if (mseq->video_signal_type_present_flag) {

  357.         u(3, mseq_var(video_format));

  358.         u(1, mseq_var(video_full_range_flag));

  359.         u(1, mseq_var(colour_description_present_flag));

  360.         if (mseq->colour_description_present_flag) {

  361.             u(8, mseq_var(colour_primaries));

  362.             u(8, mseq_var(transfer_characteristics));

  363.             u(8, mseq_var(matrix_coeffs));

  364.         }

  365.     }

  366. 

  367.     u(1, 0, chroma_loc_info_present_flag);

  368.     u(1, 0, neutral_chroma_indication_flag);

  369.     u(1, 0, field_seq_flag);

  370.     u(1, 0, frame_field_info_present_flag);

  371.     u(1, 0, default_display_window_flag);

  372.     u(1, 0, vui_timing_info_present_flag);

  373.     u(1, 0, bitstream_restriction_flag_flag);

  374. }

  375. 

  376. static void vaapi_encode_h265_write_sps(PutBitContext *pbc,

  377.                                         VAAPIEncodeContext *ctx)

  378. {

  379.     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;

  380.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  381.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  382.     int i;

  383. 

  384.     vaapi_encode_h265_write_nal_unit_header(pbc, NAL_SPS);

  385. 

  386.     u(4, mseq->video_parameter_set_id, sps_video_parameter_set_id);

  387. 

  388.     u(3, mseq_var(sps_max_sub_layers_minus1));

  389.     u(1, mseq_var(sps_temporal_id_nesting_flag));

  390. 

  391.     vaapi_encode_h265_write_profile_tier_level(pbc, ctx);

  392. 

  393.     ue(mseq->seq_parameter_set_id, sps_seq_parameter_set_id);

  394.     ue(vseq_field(chroma_format_idc));

  395.     if (vseq->seq_fields.bits.chroma_format_idc == 3)

  396.         u(1, 0, separate_colour_plane_flag);

  397. 

  398.     ue(vseq_var(pic_width_in_luma_samples));

  399.     ue(vseq_var(pic_height_in_luma_samples));

  400. 

  401.     u(1, mseq_var(conformance_window_flag));

  402.     if (mseq->conformance_window_flag) {

  403.         ue(mseq_var(conf_win_left_offset));

  404.         ue(mseq_var(conf_win_right_offset));

  405.         ue(mseq_var(conf_win_top_offset));

  406.         ue(mseq_var(conf_win_bottom_offset));

  407.     }

  408. 

  409.     ue(vseq_field(bit_depth_luma_minus8));

  410.     ue(vseq_field(bit_depth_chroma_minus8));

  411. 

  412.     ue(mseq_var(log2_max_pic_order_cnt_lsb_minus4));

  413. 

  414.     u(1, mseq_var(sps_sub_layer_ordering_info_present_flag));

  415.     for (i = (mseq->sps_sub_layer_ordering_info_present_flag ?

  416.               0 : mseq->sps_max_sub_layers_minus1);

  417.          i <= mseq->sps_max_sub_layers_minus1; i++) {

  418.         ue(mseq_var(sps_max_dec_pic_buffering_minus1[i]));

  419.         ue(mseq_var(sps_max_num_reorder_pics[i]));

  420.         ue(mseq_var(sps_max_latency_increase_plus1[i]));

  421.     }

  422. 

  423.     ue(vseq_var(log2_min_luma_coding_block_size_minus3));

  424.     ue(vseq_var(log2_diff_max_min_luma_coding_block_size));

  425.     ue(vseq_var(log2_min_transform_block_size_minus2));

  426.     ue(vseq_var(log2_diff_max_min_transform_block_size));

  427.     ue(vseq_var(max_transform_hierarchy_depth_inter));

  428.     ue(vseq_var(max_transform_hierarchy_depth_intra));

  429. 

  430.     u(1, vseq_field(scaling_list_enabled_flag));

  431.     if (vseq->seq_fields.bits.scaling_list_enabled_flag) {

  432.         u(1, 0, sps_scaling_list_data_present_flag);

  433.     }

  434. 

  435.     u(1, vseq_field(amp_enabled_flag));

  436.     u(1, vseq_field(sample_adaptive_offset_enabled_flag));

  437. 

  438.     u(1, vseq_field(pcm_enabled_flag));

  439.     if (vseq->seq_fields.bits.pcm_enabled_flag) {

  440.         u(4, vseq_var(pcm_sample_bit_depth_luma_minus1));

  441.         u(4, vseq_var(pcm_sample_bit_depth_chroma_minus1));

  442.         ue(vseq_var(log2_min_pcm_luma_coding_block_size_minus3));

  443.         ue(vseq->log2_max_pcm_luma_coding_block_size_minus3 -

  444.            vseq->log2_min_pcm_luma_coding_block_size_minus3,

  445.            log2_diff_max_min_pcm_luma_coding_block_size);

  446.         u(1, vseq_field(pcm_loop_filter_disabled_flag));

  447.     }

  448. 

  449.     ue(mseq_var(num_short_term_ref_pic_sets));

  450.     for (i = 0; i < mseq->num_short_term_ref_pic_sets; i++)

  451.         vaapi_encode_h265_write_st_ref_pic_set(pbc, i,

  452.                                                &mseq->st_ref_pic_set[i]);

  453. 

  454.     u(1, mseq_var(long_term_ref_pics_present_flag));

  455.     if (mseq->long_term_ref_pics_present_flag) {

  456.         ue(0, num_long_term_ref_pics_sps);

  457.     }

  458. 

  459.     u(1, vseq_field(sps_temporal_mvp_enabled_flag));

  460.     u(1, vseq_field(strong_intra_smoothing_enabled_flag));

  461. 

  462.     u(1, mseq_var(vui_parameters_present_flag));

  463.     if (mseq->vui_parameters_present_flag) {

  464.         vaapi_encode_h265_write_vui_parameters(pbc, ctx);

  465.     }

  466. 

  467.     u(1, 0, sps_extension_present_flag);

  468. 

  469.     vaapi_encode_h265_write_rbsp_trailing_bits(pbc);

  470. }

  471. 

  472. static void vaapi_encode_h265_write_pps(PutBitContext *pbc,

  473.                                         VAAPIEncodeContext *ctx)

  474. {

  475.     VAEncPictureParameterBufferHEVC   *vpic = ctx->codec_picture_params;

  476.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  477.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  478.     int i;

  479. 

  480.     vaapi_encode_h265_write_nal_unit_header(pbc, NAL_PPS);

  481. 

  482.     ue(vpic->slice_pic_parameter_set_id, pps_pic_parameter_set_id);

  483.     ue(mseq->seq_parameter_set_id, pps_seq_parameter_set_id);

  484. 

  485.     u(1, vpic_field(dependent_slice_segments_enabled_flag));

  486.     u(1, mseq_var(output_flag_present_flag));

  487.     u(3, mseq_var(num_extra_slice_header_bits));

  488.     u(1, vpic_field(sign_data_hiding_enabled_flag));

  489.     u(1, mseq_var(cabac_init_present_flag));

  490. 

  491.     ue(vpic_var(num_ref_idx_l0_default_active_minus1));

  492.     ue(vpic_var(num_ref_idx_l1_default_active_minus1));

  493. 

  494.     se(vpic->pic_init_qp - 26, init_qp_minus26);

  495. 

  496.     u(1, vpic_field(constrained_intra_pred_flag));

  497.     u(1, vpic_field(transform_skip_enabled_flag));

  498. 

  499.     u(1, vpic_field(cu_qp_delta_enabled_flag));

  500.     if (vpic->pic_fields.bits.cu_qp_delta_enabled_flag)

  501.         ue(vpic_var(diff_cu_qp_delta_depth));

  502. 

  503.     se(vpic_var(pps_cb_qp_offset));

  504.     se(vpic_var(pps_cr_qp_offset));

  505. 

  506.     u(1, mseq_var(pps_slice_chroma_qp_offsets_present_flag));

  507.     u(1, vpic_field(weighted_pred_flag));

  508.     u(1, vpic_field(weighted_bipred_flag));

  509.     u(1, vpic_field(transquant_bypass_enabled_flag));

  510.     u(1, vpic_field(tiles_enabled_flag));

  511.     u(1, vpic_field(entropy_coding_sync_enabled_flag));

  512. 

  513.     if (vpic->pic_fields.bits.tiles_enabled_flag) {

  514.         ue(vpic_var(num_tile_columns_minus1));

  515.         ue(vpic_var(num_tile_rows_minus1));

  516.         u(1, mseq_var(uniform_spacing_flag));

  517.         if (!mseq->uniform_spacing_flag) {

  518.             for (i = 0; i < vpic->num_tile_columns_minus1; i++)

  519.                 ue(vpic_var(column_width_minus1[i]));

  520.             for (i = 0; i < vpic->num_tile_rows_minus1; i++)

  521.                 ue(vpic_var(row_height_minus1[i]));

  522.         }

  523.         u(1, vpic_field(loop_filter_across_tiles_enabled_flag));

  524.     }

  525. 

  526.     u(1, vpic_field(pps_loop_filter_across_slices_enabled_flag));

  527.     u(1, mseq_var(deblocking_filter_control_present_flag));

  528.     if (mseq->deblocking_filter_control_present_flag) {

  529.         u(1, mseq_var(deblocking_filter_override_enabled_flag));

  530.         u(1, mseq_var(pps_deblocking_filter_disabled_flag));

  531.         if (!mseq->pps_deblocking_filter_disabled_flag) {

  532.             se(mseq_var(pps_beta_offset_div2));

  533.             se(mseq_var(pps_tc_offset_div2));

  534.         }

  535.     }

  536. 

  537.     u(1, 0, pps_scaling_list_data_present_flag);

  538.     // No scaling list data.

  539. 

  540.     u(1, mseq_var(lists_modification_present_flag));

  541.     ue(vpic_var(log2_parallel_merge_level_minus2));

  542.     u(1, 0, slice_segment_header_extension_present_flag);

  543.     u(1, 0, pps_extension_present_flag);

  544. 

  545.     vaapi_encode_h265_write_rbsp_trailing_bits(pbc);

  546. }

  547. 

  548. static void vaapi_encode_h265_write_slice_header2(PutBitContext *pbc,

  549.                                                   VAAPIEncodeContext *ctx,

  550.                                                   VAAPIEncodePicture *pic,

  551.                                                   VAAPIEncodeSlice *slice)

  552. {

  553.     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;

  554.     VAEncPictureParameterBufferHEVC   *vpic = pic->codec_picture_params;

  555.     VAEncSliceParameterBufferHEVC   *vslice = slice->codec_slice_params;

  556.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  557.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  558.     VAAPIEncodeH265Slice            *pslice = slice->priv_data;

  559.     VAAPIEncodeH265MiscSliceParams  *mslice = &pslice->misc_slice_params;

  560.     int i;

  561. 

  562.     vaapi_encode_h265_write_nal_unit_header(pbc, vpic->nal_unit_type);

  563. 

  564.     u(1, mslice_var(first_slice_segment_in_pic_flag));

  565.     if (vpic->nal_unit_type >= NAL_BLA_W_LP &&

  566.        vpic->nal_unit_type <= 23)

  567.         u(1, mslice_var(no_output_of_prior_pics_flag));

  568. 

  569.     ue(vslice_var(slice_pic_parameter_set_id));

  570. 

  571.     if (!mslice->first_slice_segment_in_pic_flag) {

  572.         if (vpic->pic_fields.bits.dependent_slice_segments_enabled_flag)

  573.             u(1, vslice_field(dependent_slice_segment_flag));

  574.         u(av_log2((priv->ctu_width * priv->ctu_height) - 1) + 1,

  575.           mslice_var(slice_segment_address));

  576.     }

  577.     if (!vslice->slice_fields.bits.dependent_slice_segment_flag) {

  578.         for (i = 0; i < mseq->num_extra_slice_header_bits; i++)

  579.             u(1, mslice_var(slice_reserved_flag[i]));

  580. 

  581.         ue(vslice_var(slice_type));

  582.         if (mseq->output_flag_present_flag)

  583.             u(1, 1, pic_output_flag);

  584.         if (vseq->seq_fields.bits.separate_colour_plane_flag)

  585.             u(2, vslice_field(colour_plane_id));

  586.         if (vpic->nal_unit_type != NAL_IDR_W_RADL &&

  587.            vpic->nal_unit_type != NAL_IDR_N_LP) {

  588.             u(4 + mseq->log2_max_pic_order_cnt_lsb_minus4,

  589.               (pslice->pic_order_cnt &

  590.                ((1 << (mseq->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1)),

  591.               slice_pic_order_cnt_lsb);

  592. 

  593.             u(1, mslice_var(short_term_ref_pic_set_sps_flag));

  594.             if (!mslice->short_term_ref_pic_set_sps_flag) {

  595.                 vaapi_encode_h265_write_st_ref_pic_set(pbc, mseq->num_short_term_ref_pic_sets,

  596.                                                        &mslice->st_ref_pic_set);

  597.             } else if (mseq->num_short_term_ref_pic_sets > 1) {

  598.                 u(av_log2(mseq->num_short_term_ref_pic_sets - 1) + 1,

  599.                   mslice_var(short_term_ref_pic_idx));

  600.             }

  601. 

  602.             if (mseq->long_term_ref_pics_present_flag) {

  603.                 av_assert0(0);

  604.             }

  605. 

  606.             if (vseq->seq_fields.bits.sps_temporal_mvp_enabled_flag) {

  607.                 u(1, vslice_field(slice_temporal_mvp_enabled_flag));

  608.             }

  609. 

  610.             if (vseq->seq_fields.bits.sample_adaptive_offset_enabled_flag) {

  611.                 u(1, vslice_field(slice_sao_luma_flag));

  612.                 if (!vseq->seq_fields.bits.separate_colour_plane_flag &&

  613.                    vseq->seq_fields.bits.chroma_format_idc != 0) {

  614.                     u(1, vslice_field(slice_sao_chroma_flag));

  615.                 }

  616.             }

  617. 

  618.             if (vslice->slice_type == P_SLICE || vslice->slice_type == B_SLICE) {

  619.                 u(1, vslice_field(num_ref_idx_active_override_flag));

  620.                 if (vslice->slice_fields.bits.num_ref_idx_active_override_flag) {

  621.                     ue(vslice_var(num_ref_idx_l0_active_minus1));

  622.                     if (vslice->slice_type == B_SLICE) {

  623.                         ue(vslice_var(num_ref_idx_l1_active_minus1));

  624.                     }

  625.                 }

  626. 

  627.                 if (mseq->lists_modification_present_flag) {

  628.                     av_assert0(0);

  629.                     // ref_pic_lists_modification()

  630.                 }

  631.                 if (vslice->slice_type == B_SLICE) {

  632.                     u(1, vslice_field(mvd_l1_zero_flag));

  633.                 }

  634.                 if (mseq->cabac_init_present_flag) {

  635.                     u(1, vslice_field(cabac_init_flag));

  636.                 }

  637.                 if (vslice->slice_fields.bits.slice_temporal_mvp_enabled_flag) {

  638.                     if (vslice->slice_type == B_SLICE)

  639.                         u(1, vslice_field(collocated_from_l0_flag));

  640.                     ue(vpic->collocated_ref_pic_index, collocated_ref_idx);

  641.                 }

  642.                 if ((vpic->pic_fields.bits.weighted_pred_flag &&

  643.                      vslice->slice_type == P_SLICE) ||

  644.                     (vpic->pic_fields.bits.weighted_bipred_flag &&

  645.                      vslice->slice_type == B_SLICE)) {

  646.                     av_assert0(0);

  647.                     // pred_weight_table()

  648.                 }

  649.                 ue(5 - vslice->max_num_merge_cand, five_minus_max_num_merge_cand);

  650.             }

  651. 

  652.             se(vslice_var(slice_qp_delta));

  653.             if (mseq->pps_slice_chroma_qp_offsets_present_flag) {

  654.                 se(vslice_var(slice_cb_qp_offset));

  655.                 se(vslice_var(slice_cr_qp_offset));

  656.             }

  657.             if (mseq->pps_slice_chroma_offset_list_enabled_flag) {

  658.                 u(1, 0, cu_chroma_qp_offset_enabled_flag);

  659.             }

  660.             if (mseq->deblocking_filter_override_enabled_flag) {

  661.                 u(1, mslice_var(deblocking_filter_override_flag));

  662.             }

  663.             if (mslice->deblocking_filter_override_flag) {

  664.                 u(1, vslice_field(slice_deblocking_filter_disabled_flag));

  665.                 if (!vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag) {

  666.                     se(vslice_var(slice_beta_offset_div2));

  667.                     se(vslice_var(slice_tc_offset_div2));

  668.                 }

  669.             }

  670.             if (vpic->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag &&

  671.                 (vslice->slice_fields.bits.slice_sao_luma_flag ||

  672.                  vslice->slice_fields.bits.slice_sao_chroma_flag ||

  673.                  vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag)) {

  674.                 u(1, vslice_field(slice_loop_filter_across_slices_enabled_flag));

  675.             }

  676.         }

  677. 

  678.         if (vpic->pic_fields.bits.tiles_enabled_flag ||

  679.             vpic->pic_fields.bits.entropy_coding_sync_enabled_flag) {

  680.             // num_entry_point_offsets

  681.         }

  682. 

  683.         if (0) {

  684.             // slice_segment_header_extension_length

  685.         }

  686.     }

  687. 

  688.     u(1, 1, alignment_bit_equal_to_one);

  689.     while (put_bits_count(pbc) & 7)

  690.         u(1, 0, alignment_bit_equal_to_zero);

  691. }

  692. 

  693. static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,

  694.                                                    char *data, size_t *data_len)

  695. {

  696.     VAAPIEncodeContext *ctx = avctx->priv_data;

  697.     PutBitContext pbc;

  698.     char tmp[256];

  699.     int err;

  700.     size_t nal_len, bit_len, bit_pos, next_len;

  701. 

  702.     bit_len = *data_len;

  703.     bit_pos = 0;

  704. 

  705.     init_put_bits(&pbc, tmp, sizeof(tmp));

  706.     vaapi_encode_h265_write_vps(&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.     init_put_bits(&pbc, tmp, sizeof(tmp));

  719.     vaapi_encode_h265_write_sps(&pbc, ctx);

  720.     nal_len = put_bits_count(&pbc);

  721.     flush_put_bits(&pbc);

  722. 

  723.     next_len = bit_len - bit_pos;

  724.     err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,

  725.                                                        &next_len,

  726.                                                        tmp, nal_len);

  727.     if (err < 0)

  728.         return err;

  729.     bit_pos += next_len;

  730. 

  731.     init_put_bits(&pbc, tmp, sizeof(tmp));

  732.     vaapi_encode_h265_write_pps(&pbc, ctx);

  733.     nal_len = put_bits_count(&pbc);

  734.     flush_put_bits(&pbc);

  735. 

  736.     next_len = bit_len - bit_pos;

  737.     err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,

  738.                                                        &next_len,

  739.                                                        tmp, nal_len);

  740.     if (err < 0)

  741.         return err;

  742.     bit_pos += next_len;

  743. 

  744.     *data_len = bit_pos;

  745.     return 0;

  746. }

  747. 

  748. static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,

  749.                                                 VAAPIEncodePicture *pic,

  750.                                                 VAAPIEncodeSlice *slice,

  751.                                                 char *data, size_t *data_len)

  752. {

  753.     VAAPIEncodeContext *ctx = avctx->priv_data;

  754.     PutBitContext pbc;

  755.     char tmp[256];

  756.     size_t header_len;

  757. 

  758.     init_put_bits(&pbc, tmp, sizeof(tmp));

  759.     vaapi_encode_h265_write_slice_header2(&pbc, ctx, pic, slice);

  760.     header_len = put_bits_count(&pbc);

  761.     flush_put_bits(&pbc);

  762. 

  763.     return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,

  764.                                                         tmp, header_len);

  765. }

  766. 

  767. static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)

  768. {

  769.     VAAPIEncodeContext                 *ctx = avctx->priv_data;

  770.     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;

  771.     VAEncPictureParameterBufferHEVC   *vpic = ctx->codec_picture_params;

  772.     VAAPIEncodeH265Context            *priv = ctx->priv_data;

  773.     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;

  774.     int i;

  775. 

  776.     {

  777.         // general_profile_space == 0.

  778.         vseq->general_profile_idc = 1; // Main profile (ctx->codec_profile?)

  779.         vseq->general_tier_flag = 0;

  780. 

  781.         vseq->general_level_idc = avctx->level * 3;

  782. 

  783.         vseq->intra_period = 0;

  784.         vseq->intra_idr_period = 0;

  785.         vseq->ip_period = 0;

  786. 

  787.         vseq->pic_width_in_luma_samples  = ctx->aligned_width;

  788.         vseq->pic_height_in_luma_samples = ctx->aligned_height;

  789. 

  790.         vseq->seq_fields.bits.chroma_format_idc = 1; // 4:2:0.

  791.         vseq->seq_fields.bits.separate_colour_plane_flag = 0;

  792.         vseq->seq_fields.bits.bit_depth_luma_minus8 = 0; // 8-bit luma.

  793.         vseq->seq_fields.bits.bit_depth_chroma_minus8 = 0; // 8-bit chroma.

  794.         // Other misc flags all zero.

  795. 

  796.         // These have to come from the capabilities of the encoder.  We have

  797.         // no way to query it, so just hardcode ones which worked for me...

  798.         // CTB size from 8x8 to 32x32.

  799.         vseq->log2_min_luma_coding_block_size_minus3 = 0;

  800.         vseq->log2_diff_max_min_luma_coding_block_size = 2;

  801.         // Transform size from 4x4 to 32x32.

  802.         vseq->log2_min_transform_block_size_minus2 = 0;

  803.         vseq->log2_diff_max_min_transform_block_size = 3;

  804.         // Full transform hierarchy allowed (2-5).

  805.         vseq->max_transform_hierarchy_depth_inter = 3;

  806.         vseq->max_transform_hierarchy_depth_intra = 3;

  807. 

  808.         vseq->vui_parameters_present_flag = 0;

  809.     }

  810. 

  811.     {

  812.         vpic->decoded_curr_pic.picture_id = VA_INVALID_ID;

  813.         vpic->decoded_curr_pic.flags      = VA_PICTURE_HEVC_INVALID;

  814. 

  815.         for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {

  816.             vpic->reference_frames[i].picture_id = VA_INVALID_ID;

  817.             vpic->reference_frames[i].flags      = VA_PICTURE_HEVC_INVALID;

  818.         }

  819. 

  820.         vpic->collocated_ref_pic_index = 0xff;

  821. 

  822.         vpic->last_picture = 0;

  823. 

  824.         vpic->pic_init_qp = priv->fixed_qp_idr;

  825. 

  826.         vpic->diff_cu_qp_delta_depth = 0;

  827.         vpic->pps_cb_qp_offset = 0;

  828.         vpic->pps_cr_qp_offset = 0;

  829. 

  830.         // tiles_enabled_flag == 0, so ignore num_tile_(rows|columns)_minus1.

  831. 

  832.         vpic->log2_parallel_merge_level_minus2 = 0;

  833. 

  834.         // No limit on size.

  835.         vpic->ctu_max_bitsize_allowed = 0;

  836. 

  837.         vpic->num_ref_idx_l0_default_active_minus1 = 0;

  838.         vpic->num_ref_idx_l1_default_active_minus1 = 0;

  839. 

  840.         vpic->slice_pic_parameter_set_id = 0;

  841. 

  842.         vpic->pic_fields.bits.screen_content_flag = 0;

  843.         vpic->pic_fields.bits.enable_gpu_weighted_prediction = 0;

  844. 

  845.         //vpic->pic_fields.bits.cu_qp_delta_enabled_flag = 1;

  846.     }

  847. 

  848.     {

  849.         mseq->video_parameter_set_id = 5;

  850.         mseq->seq_parameter_set_id = 5;

  851. 

  852.         mseq->vps_max_layers_minus1 = 0;

  853.         mseq->vps_max_sub_layers_minus1 = 0;

  854.         mseq->vps_temporal_id_nesting_flag = 1;

  855.         mseq->sps_max_sub_layers_minus1 = 0;

  856.         mseq->sps_temporal_id_nesting_flag = 1;

  857. 

  858.         for (i = 0; i < 32; i++) {

  859.             mseq->general_profile_compatibility_flag[i] =

  860.                 (i == vseq->general_profile_idc);

  861.         }

  862. 

  863.         mseq->general_progressive_source_flag    = 1;

  864.         mseq->general_interlaced_source_flag     = 0;

  865.         mseq->general_non_packed_constraint_flag = 0;

  866.         mseq->general_frame_only_constraint_flag = 1;

  867.         mseq->general_inbld_flag = 0;

  868. 

  869.         mseq->log2_max_pic_order_cnt_lsb_minus4 = 8;

  870.         mseq->vps_sub_layer_ordering_info_present_flag = 0;

  871.         mseq->vps_max_dec_pic_buffering_minus1[0] = 1;

  872.         mseq->vps_max_num_reorder_pics[0]         = ctx->b_per_p;

  873.         mseq->vps_max_latency_increase_plus1[0]   = 0;

  874.         mseq->sps_sub_layer_ordering_info_present_flag = 0;

  875.         mseq->sps_max_dec_pic_buffering_minus1[0] = 1;

  876.         mseq->sps_max_num_reorder_pics[0]         = ctx->b_per_p;

  877.         mseq->sps_max_latency_increase_plus1[0]   = 0;

  878. 

  879.         mseq->vps_timing_info_present_flag = 1;

  880.         mseq->vps_num_units_in_tick = avctx->time_base.num;

  881.         mseq->vps_time_scale        = avctx->time_base.den;

  882.         mseq->vps_poc_proportional_to_timing_flag = 1;

  883.         mseq->vps_num_ticks_poc_diff_minus1 = 0;

  884. 

  885.         if (ctx->input_width  != ctx->aligned_width ||

  886.             ctx->input_height != ctx->aligned_height) {

  887.             mseq->conformance_window_flag = 1;

  888.             mseq->conf_win_left_offset   = 0;

  889.             mseq->conf_win_right_offset  =

  890.                 (ctx->aligned_width - ctx->input_width) / 2;

  891.             mseq->conf_win_top_offset    = 0;

  892.             mseq->conf_win_bottom_offset =

  893.                 (ctx->aligned_height - ctx->input_height) / 2;

  894.         } else {

  895.             mseq->conformance_window_flag = 0;

  896.         }

  897. 

  898.         mseq->num_short_term_ref_pic_sets = 0;

  899.         // STRPSs should ideally be here rather than repeated in each slice.

  900. 

  901.         mseq->vui_parameters_present_flag = 1;

  902.         if (avctx->sample_aspect_ratio.num != 0) {

  903.             mseq->aspect_ratio_info_present_flag = 1;

  904.             if (avctx->sample_aspect_ratio.num ==

  905.                 avctx->sample_aspect_ratio.den) {

  906.                 mseq->aspect_ratio_idc = 1;

  907.             } else {

  908.                 mseq->aspect_ratio_idc = 255; // Extended SAR.

  909.                 mseq->sar_width  = avctx->sample_aspect_ratio.num;

  910.                 mseq->sar_height = avctx->sample_aspect_ratio.den;

  911.             }

  912.         }

  913.         if (1) {

  914.             // Should this be conditional on some of these being set?

  915.             mseq->video_signal_type_present_flag = 1;

  916.             mseq->video_format = 5; // Unspecified.

  917.             mseq->video_full_range_flag = 0;

  918.             mseq->colour_description_present_flag = 1;

  919.             mseq->colour_primaries = avctx->color_primaries;

  920.             mseq->transfer_characteristics = avctx->color_trc;

  921.             mseq->matrix_coeffs = avctx->colorspace;

  922.         }

  923.     }

  924. 

  925.     return 0;

  926. }

  927. 

  928. static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,

  929.                                                  VAAPIEncodePicture *pic)

  930. {

  931.     VAAPIEncodeContext               *ctx = avctx->priv_data;

  932.     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;

  933.     VAAPIEncodeH265Context          *priv = ctx->priv_data;

  934.     int i;

  935. 

  936.     if (pic->type == PICTURE_TYPE_IDR) {

  937.         av_assert0(pic->display_order == pic->encode_order);

  938.         priv->last_idr_frame = pic->display_order;

  939.     } else {

  940.         av_assert0(pic->encode_order > priv->last_idr_frame);

  941.         // Display order need not be if we have RA[SD]L pictures, though.

  942.     }

  943. 

  944.     vpic->decoded_curr_pic.picture_id    = pic->recon_surface;

  945.     vpic->decoded_curr_pic.pic_order_cnt =

  946.         pic->display_order - priv->last_idr_frame;

  947.     vpic->decoded_curr_pic.flags         = 0;

  948. 

  949.     for (i = 0; i < pic->nb_refs; i++) {

  950.         VAAPIEncodePicture *ref = pic->refs[i];

  951.         av_assert0(ref);

  952.         vpic->reference_frames[i].picture_id    = ref->recon_surface;

  953.         vpic->reference_frames[i].pic_order_cnt =

  954.             ref->display_order - priv->last_idr_frame;

  955.         vpic->reference_frames[i].flags =

  956.             (ref->display_order < pic->display_order ?

  957.              VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |

  958.             (ref->display_order > pic->display_order ?

  959.              VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0);

  960.     }

  961.     for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {

  962.         vpic->reference_frames[i].picture_id = VA_INVALID_ID;

  963.         vpic->reference_frames[i].flags      = VA_PICTURE_HEVC_INVALID;

  964.     }

  965. 

  966.     vpic->coded_buf = pic->output_buffer;

  967. 

  968.     switch (pic->type) {

  969.     case PICTURE_TYPE_IDR:

  970.         vpic->nal_unit_type = NAL_IDR_W_RADL;

  971.         vpic->pic_fields.bits.idr_pic_flag = 1;

  972.         vpic->pic_fields.bits.coding_type  = 1;

  973.         vpic->pic_fields.bits.reference_pic_flag = 1;

  974.         break;

  975.     case PICTURE_TYPE_I:

  976.         vpic->nal_unit_type = NAL_TRAIL_R;

  977.         vpic->pic_fields.bits.idr_pic_flag = 0;

  978.         vpic->pic_fields.bits.coding_type  = 1;

  979.         vpic->pic_fields.bits.reference_pic_flag = 1;

  980.         break;

  981.     case PICTURE_TYPE_P:

  982.         vpic->nal_unit_type = NAL_TRAIL_R;

  983.         vpic->pic_fields.bits.idr_pic_flag = 0;

  984.         vpic->pic_fields.bits.coding_type  = 2;

  985.         vpic->pic_fields.bits.reference_pic_flag = 1;

  986.         break;

  987.     case PICTURE_TYPE_B:

  988.         vpic->nal_unit_type = NAL_TRAIL_R;

  989.         vpic->pic_fields.bits.idr_pic_flag = 0;

  990.         vpic->pic_fields.bits.coding_type  = 3;

  991.         vpic->pic_fields.bits.reference_pic_flag = 0;

  992.         break;

  993.     default:

  994.         av_assert0(0 && "invalid picture type");

  995.     }

  996. 

  997.     pic->nb_slices = 1;

  998. 

  999.     return 0;

  1000. }

  1001. 

  1002. static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,

  1003.                                                VAAPIEncodePicture *pic,

  1004.                                                VAAPIEncodeSlice *slice)

  1005. {

  1006.     VAAPIEncodeContext                *ctx = avctx->priv_data;

  1007.     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;

  1008.     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;

  1009.     VAAPIEncodeH265Context           *priv = ctx->priv_data;

  1010.     VAAPIEncodeH265Slice           *pslice;

  1011.     VAAPIEncodeH265MiscSliceParams *mslice;

  1012.     int i;

  1013. 

  1014.     slice->priv_data = av_mallocz(sizeof(*pslice));

  1015.     if (!slice->priv_data)

  1016.         return AVERROR(ENOMEM);

  1017.     pslice = slice->priv_data;

  1018.     mslice = &pslice->misc_slice_params;

  1019. 

  1020.     // Currently we only support one slice per frame.

  1021.     vslice->slice_segment_address = 0;

  1022.     vslice->num_ctu_in_slice = priv->ctu_width * priv->ctu_height;

  1023. 

  1024.     switch (pic->type) {

  1025.     case PICTURE_TYPE_IDR:

  1026.     case PICTURE_TYPE_I:

  1027.         vslice->slice_type = I_SLICE;

  1028.         break;

  1029.     case PICTURE_TYPE_P:

  1030.         vslice->slice_type = P_SLICE;

  1031.         break;

  1032.     case PICTURE_TYPE_B:

  1033.         vslice->slice_type = B_SLICE;

  1034.         break;

  1035.     default:

  1036.         av_assert0(0 && "invalid picture type");

  1037.     }

  1038. 

  1039.     vslice->slice_pic_parameter_set_id = vpic->slice_pic_parameter_set_id;

  1040. 

  1041.     pslice->pic_order_cnt = pic->display_order - priv->last_idr_frame;

  1042. 

  1043.     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {

  1044.         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;

  1045.         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;

  1046.         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;

  1047.         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;

  1048.     }

  1049. 

  1050.     av_assert0(pic->nb_refs <= 2);

  1051.     if (pic->nb_refs >= 1) {

  1052.         // Backward reference for P or B frame.

  1053.         av_assert0(pic->type == PICTURE_TYPE_P ||

  1054.                    pic->type == PICTURE_TYPE_B);

  1055. 

  1056.         vslice->num_ref_idx_l0_active_minus1 = 0;

  1057.         vslice->ref_pic_list0[0] = vpic->reference_frames[0];

  1058.     }

  1059.     if (pic->nb_refs >= 2) {

  1060.         // Forward reference for B frame.

  1061.         av_assert0(pic->type == PICTURE_TYPE_B);

  1062. 

  1063.         vslice->num_ref_idx_l1_active_minus1 = 0;

  1064.         vslice->ref_pic_list1[0] = vpic->reference_frames[1];

  1065.     }

  1066. 

  1067.     vslice->max_num_merge_cand = 5;

  1068. 

  1069.     if (pic->type == PICTURE_TYPE_B)

  1070.         vslice->slice_qp_delta = priv->fixed_qp_b  - vpic->pic_init_qp;

  1071.     else if (pic->type == PICTURE_TYPE_P)

  1072.         vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp;

  1073.     else

  1074.         vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp;

  1075. 

  1076.     vslice->slice_fields.bits.last_slice_of_pic_flag = 1;

  1077. 

  1078.     mslice->first_slice_segment_in_pic_flag = 1;

  1079. 

  1080.     if (pic->type == PICTURE_TYPE_IDR) {

  1081.         // No reference pictures.

  1082.     } else if (0) {

  1083.         mslice->short_term_ref_pic_set_sps_flag = 1;

  1084.         mslice->short_term_ref_pic_idx = 0;

  1085.     } else {

  1086.         VAAPIEncodePicture *st;

  1087.         int used;

  1088. 

  1089.         mslice->short_term_ref_pic_set_sps_flag = 0;

  1090.         mslice->st_ref_pic_set.inter_ref_pic_set_prediction_flag = 0;

  1091. 

  1092.         for (st = ctx->pic_start; st; st = st->next) {

  1093.             if (st->encode_order >= pic->encode_order) {

  1094.                 // Not yet in DPB.

  1095.                 continue;

  1096.             }

  1097.             used = 0;

  1098.             for (i = 0; i < pic->nb_refs; i++) {

  1099.                 if (pic->refs[i] == st)

  1100.                     used = 1;

  1101.             }

  1102.             if (!used) {

  1103.                 // Currently true, but need not be.

  1104.                 continue;

  1105.             }

  1106.             // This only works for one instance of each (delta_poc_sN_minus1

  1107.             // is relative to the previous frame in the list, not relative to

  1108.             // the current frame directly).

  1109.             if (st->display_order < pic->display_order) {

  1110.                 i = mslice->st_ref_pic_set.num_negative_pics;

  1111.                 mslice->st_ref_pic_set.delta_poc_s0_minus1[i] =

  1112.                     pic->display_order - st->display_order - 1;

  1113.                 mslice->st_ref_pic_set.used_by_curr_pic_s0_flag[i] = used;

  1114.                 ++mslice->st_ref_pic_set.num_negative_pics;

  1115.             } else {

  1116.                 i = mslice->st_ref_pic_set.num_positive_pics;

  1117.                 mslice->st_ref_pic_set.delta_poc_s1_minus1[i] =

  1118.                     st->display_order - pic->display_order - 1;

  1119.                 mslice->st_ref_pic_set.used_by_curr_pic_s1_flag[i] = used;

  1120.                 ++mslice->st_ref_pic_set.num_positive_pics;

  1121.             }

  1122.         }

  1123.     }

  1124. 

  1125.     return 0;

  1126. }

  1127. 

  1128. static VAConfigAttrib vaapi_encode_h265_config_attributes[] = {

  1129.     { .type  = VAConfigAttribRTFormat,

  1130.       .value = VA_RT_FORMAT_YUV420 },

  1131.     { .type  = VAConfigAttribRateControl,

  1132.       .value = VA_RC_CQP },

  1133.     { .type  = VAConfigAttribEncPackedHeaders,

  1134.       .value = (VA_ENC_PACKED_HEADER_SEQUENCE |

  1135.                 VA_ENC_PACKED_HEADER_SLICE) },

  1136. };

  1137. 

  1138. static av_cold int vaapi_encode_h265_init_internal(AVCodecContext *avctx)

  1139. {

  1140.     VAAPIEncodeContext      *ctx = avctx->priv_data;

  1141.     VAAPIEncodeH265Context *priv = ctx->priv_data;

  1142. 

  1143.     switch (avctx->profile) {

  1144.     case FF_PROFILE_HEVC_MAIN:

  1145.     case FF_PROFILE_UNKNOWN:

  1146.         ctx->va_profile = VAProfileHEVCMain;

  1147.         break;

  1148.     case FF_PROFILE_HEVC_MAIN_10:

  1149.         av_log(avctx, AV_LOG_ERROR, "H.265 main 10-bit profile "

  1150.                "is not supported.\n");

  1151.         return AVERROR_PATCHWELCOME;

  1152.     default:

  1153.         av_log(avctx, AV_LOG_ERROR, "Unknown H.265 profile %d.\n",

  1154.                avctx->profile);

  1155.         return AVERROR(EINVAL);

  1156.     }

  1157.     ctx->va_entrypoint = VAEntrypointEncSlice;

  1158. 

  1159.     ctx->va_rc_mode  = VA_RC_CQP;

  1160. 

  1161.     ctx->input_width    = avctx->width;

  1162.     ctx->input_height   = avctx->height;

  1163.     ctx->aligned_width  = FFALIGN(ctx->input_width,  16);

  1164.     ctx->aligned_height = FFALIGN(ctx->input_height, 16);

  1165.     priv->ctu_width     = FFALIGN(ctx->aligned_width,  32) / 32;

  1166.     priv->ctu_height    = FFALIGN(ctx->aligned_height, 32) / 32;

  1167. 

  1168.     av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Aligned %ux%u -> CTU %ux%u.\n",

  1169.            ctx->input_width, ctx->input_height, ctx->aligned_width,

  1170.            ctx->aligned_height, priv->ctu_width, priv->ctu_height);

  1171. 

  1172.     priv->fixed_qp_p = avctx->global_quality;

  1173.     if (avctx->i_quant_factor > 0.0)

  1174.         priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +

  1175.                                     avctx->i_quant_offset) + 0.5);

  1176.     else

  1177.         priv->fixed_qp_idr = priv->fixed_qp_p;

  1178.     if (avctx->b_quant_factor > 0.0)

  1179.         priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +

  1180.                                   avctx->b_quant_offset) + 0.5);

  1181.     else

  1182.         priv->fixed_qp_b = priv->fixed_qp_p;

  1183.     av_log(avctx, AV_LOG_DEBUG, "QP = %d / %d / %d for IDR / P / B frames.\n",

  1184.            priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);

  1185. 

  1186.     ctx->config_attributes = vaapi_encode_h265_config_attributes;

  1187.     ctx->nb_config_attributes =

  1188.         FF_ARRAY_ELEMS(vaapi_encode_h265_config_attributes);

  1189. 

  1190.     ctx->nb_recon_frames = 20;

  1191. 

  1192.     return 0;

  1193. }

  1194. 

  1195. static VAAPIEncodeType vaapi_encode_type_h265 = {

  1196.     .priv_data_size        = sizeof(VAAPIEncodeH265Context),

  1197. 

  1198.     .init                  = &vaapi_encode_h265_init_internal,

  1199. 

  1200.     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),

  1201.     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,

  1202. 

  1203.     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),

  1204.     .init_picture_params   = &vaapi_encode_h265_init_picture_params,

  1205. 

  1206.     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),

  1207.     .init_slice_params     = &vaapi_encode_h265_init_slice_params,

  1208. 

  1209.     .sequence_header_type  = VAEncPackedHeaderSequence,

  1210.     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,

  1211. 

  1212.     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,

  1213.     .write_slice_header    = &vaapi_encode_h265_write_slice_header,

  1214. };

  1215. 

  1216. static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)

  1217. {

  1218.     return ff_vaapi_encode_init(avctx, &vaapi_encode_type_h265);

  1219. }

  1220. 

  1221. static const AVCodecDefault vaapi_encode_h265_defaults[] = {

  1222.     { "profile",        "1"   },

  1223.     { "level",          "51"  },

  1224.     { "b",              "0"   },

  1225.     { "bf",             "2"   },

  1226.     { "g",              "120" },

  1227.     { "global_quality", "25"  },

  1228.     { "i_qfactor",      "1.0" },

  1229.     { "i_qoffset",      "0.0" },

  1230.     { "b_qfactor",      "1.2" },

  1231.     { "b_qoffset",      "0.0" },

  1232.     { NULL },

  1233. };

  1234. 

  1235. static const AVClass vaapi_encode_h265_class = {

  1236.     .class_name = "h265_vaapi",

  1237.     .item_name  = av_default_item_name,

  1238.     .version    = LIBAVUTIL_VERSION_INT,

  1239. };

  1240. 

  1241. AVCodec ff_hevc_vaapi_encoder = {

  1242.     .name           = "hevc_vaapi",

  1243.     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),

  1244.     .type           = AVMEDIA_TYPE_VIDEO,

  1245.     .id             = AV_CODEC_ID_HEVC,

  1246.     .priv_data_size = sizeof(VAAPIEncodeContext),

  1247.     .init           = &vaapi_encode_h265_init,

  1248.     .encode2        = &ff_vaapi_encode2,

  1249.     .close          = &ff_vaapi_encode_close,

  1250.     .priv_class     = &vaapi_encode_h265_class,

  1251.     .capabilities   = AV_CODEC_CAP_DELAY,

  1252.     .defaults       = vaapi_encode_h265_defaults,

  1253.     .pix_fmts = (const enum AVPixelFormat[]) {

  1254.         AV_PIX_FMT_VAAPI,

  1255.         AV_PIX_FMT_NONE,

  1256.     },

  1257. };