Merge commit '31fe1f2577f8208f79a4b3ab59465e78dd497555'
authorDerek Buitenhuis <derek.buitenhuis@gmail.com>
Sun, 8 May 2016 21:45:39 +0000 (22:45 +0100)
committerDerek Buitenhuis <derek.buitenhuis@gmail.com>
Sun, 8 May 2016 21:45:39 +0000 (22:45 +0100)
* commit '31fe1f2577f8208f79a4b3ab59465e78dd497555':
  lavc: VAAPI H.265 encoder

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
1  2 
Changelog
configure
libavcodec/Makefile
libavcodec/allcodecs.c
libavcodec/vaapi_encode_h265.c

diff --cc Changelog
+++ b/Changelog
@@@ -2,201 -2,17 +2,201 @@@ Entries are sorted chronologically fro
  releases are sorted from youngest to oldest.
  
  version <next>:
 -- aliases and defaults for Ogg subtypes (opus, spx)
 -- HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
 -- avplay now exits by default at the end of playback
 -- XCB-based screen-grabber
 -- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
 -- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
 +- DXVA2-accelerated HEVC Main10 decoding
 +- fieldhint filter
 +- loop video filter and aloop audio filter
 +- Bob Weaver deinterlacing filter
 +- firequalizer filter
 +- datascope filter
 +- bench and abench filters
 +- ciescope filter
 +- protocol blacklisting API
 +- MediaCodec H264 decoding
 +- VC-2 HQ RTP payload format (draft v1) depacketizer and packetizer
 +- AudioToolbox audio decoders
 +- AudioToolbox audio encoders
 +- coreimage filter (GPU based image filtering on OSX)
 +- libdcadec removed
 +- bitstream filter for extracting DTS core
 +- ADPCM IMA DAT4 decoder
 +- musx demuxer
 +- aix demuxer
 +- remap filter
 +- hash and framehash muxers
 +- colorspace filter
 +- hdcd filter
 +- readvitc filter
 +- VAAPI-accelerated format conversion and scaling
 +- libnpp/CUDA-accelerated format conversion and scaling
 +- Duck TrueMotion 2.0 Real Time decoder
 +- Wideband Single-bit Data (WSD) demuxer
- - VAAPI-accelerate H.264 encoding
++- VAAPI-accelerated H.264/HEVC encoding
 +
 +version 3.0:
 +- Common Encryption (CENC) MP4 encoding and decoding support
 +- DXV decoding
 +- extrastereo filter
 +- ocr filter
 +- alimiter filter
 +- stereowiden filter
 +- stereotools filter
 +- rubberband filter
 +- tremolo filter
 +- agate filter
 +- chromakey filter
 +- maskedmerge filter
 +- Screenpresso SPV1 decoding
 +- chromaprint fingerprinting muxer
 +- ffplay dynamic volume control
 +- displace filter
 +- selectivecolor filter
 +- extensive native AAC encoder improvements and removal of experimental flag
 +- ADPCM PSX decoder
 +- 3dostr, dcstr, fsb, genh, vag, xvag, ads, msf, svag & vpk demuxer
 +- zscale filter
 +- wve demuxer
 +- zero-copy Intel QSV transcoding in ffmpeg
 +- shuffleframes filter
 +- SDX2 DPCM decoder
 +- vibrato filter
 +- innoHeim/Rsupport Screen Capture Codec decoder
 +- ADPCM AICA decoder
 +- Interplay ACM demuxer and audio decoder
 +- XMA1 & XMA2 decoder
 +- realtime filter
 +- anoisesrc audio filter source
 +- IVR demuxer
 +- compensationdelay filter
 +- acompressor filter
 +- support encoding 16-bit RLE SGI images
 +- apulsator filter
 +- sidechaingate audio filter
 +- mipsdspr1 option has been renamed to mipsdsp
 +- aemphasis filter
 +- mips32r5 option has been removed
 +- mips64r6 option has been removed
 +- DXVA2-accelerated VP9 decoding
 +- SOFAlizer: virtual binaural acoustics filter
 +- VAAPI VP9 hwaccel
 +- audio high-order multiband parametric equalizer
 +- automatic bitstream filtering
 +- showspectrumpic filter
 +- libstagefright support removed
 +- spectrumsynth filter
 +- ahistogram filter
 +- only seek with the right mouse button in ffplay
 +- toggle full screen when double-clicking with the left mouse button in ffplay
 +- afftfilt filter
 +- convolution filter
 +- libquvi support removed
 +- support for dvaudio in wav and avi
 +- libaacplus and libvo-aacenc support removed
 +- Cineform HD decoder
 +- new DCA decoder with full support for DTS-HD extensions
 +- significant performance improvements in Windows Television (WTV) demuxer
 +- nnedi deinterlacer
 +- streamselect video and astreamselect audio filter
 +- swaprect filter
 +- metadata video and ametadata audio filter
 +- SMPTE VC-2 HQ profile support for the Dirac decoder
 +- SMPTE VC-2 native encoder supporting the HQ profile
 +
 +
 +version 2.8:
 +- colorkey video filter
 +- BFSTM/BCSTM demuxer
 +- little-endian ADPCM_THP decoder
 +- Hap decoder and encoder
 +- DirectDraw Surface image/texture decoder
 +- ssim filter
 +- optional new ASF demuxer
 +- showvolume filter
 +- Many improvements to the JPEG 2000 decoder
 +- Go2Meeting decoding support
 +- adrawgraph audio and drawgraph video filter
 +- removegrain video filter
 +- Intel QSV-accelerated MPEG-2 video and HEVC encoding
 +- Intel QSV-accelerated MPEG-2 video and HEVC decoding
 +- Intel QSV-accelerated VC-1 video decoding
 +- libkvazaar HEVC encoder
 +- erosion, dilation, deflate and inflate video filters
 +- Dynamic Audio Normalizer as dynaudnorm filter
 +- Reverse video and areverse audio filter
 +- Random filter
 +- deband filter
 +- AAC fixed-point decoding
 +- sidechaincompress audio filter
 +- bitstream filter for converting HEVC from MP4 to Annex B
 +- acrossfade audio filter
 +- allyuv and allrgb video sources
 +- atadenoise video filter
 +- OS X VideoToolbox support
 +- aphasemeter filter
 +- showfreqs filter
 +- vectorscope filter
 +- waveform filter
 +- hstack and vstack filter
 +- Support DNx100 (1440x1080@8)
 +- VAAPI hevc hwaccel
 +- VDPAU hevc hwaccel
 +- framerate filter
 +- Switched default encoders for webm to VP9 and Opus
 +- Removed experimental flag from the JPEG 2000 encoder
 +
 +
 +version 2.7:
 +- FFT video filter
 +- TDSC decoder
 +- DTS lossless extension (XLL) decoding (not lossless, disabled by default)
 +- showwavespic filter
 +- DTS decoding through libdcadec
 +- Drop support for nvenc API before 5.0
 +- nvenc HEVC encoder
 +- Detelecine filter
 +- Intel QSV-accelerated H.264 encoding
 +- MMAL-accelerated H.264 decoding
 +- basic APNG encoder and muxer with default extension "apng"
 +- unpack DivX-style packed B-frames in MPEG-4 bitstream filter
 +- WebM Live Chunk Muxer
 +- nvenc level and tier options
 +- chorus filter
 +- Canopus HQ/HQA decoder
 +- Automatically rotate videos based on metadata in ffmpeg
 +- improved Quickdraw compatibility
 +- VP9 high bit-depth and extended colorspaces decoding support
 +- WebPAnimEncoder API when available for encoding and muxing WebP
 +- Direct3D11-accelerated decoding
 +- Support Secure Transport
 +- Multipart JPEG demuxer
 +
 +
 +version 2.6:
 +- nvenc encoder
 +- 10bit spp filter
 +- colorlevels filter
 +- RIFX format for *.wav files
  - RTP/mpegts muxer
 -- VP8 in Ogg demuxing
 +- non continuous cache protocol support
 +- tblend filter
 +- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
 +- Camellia symmetric block cipher
  - OpenH264 encoder wrapper
 +- VOC seeking support
 +- Closed caption Decoder
 +- fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
 +- showpalette filter
 +- Twofish symmetric block cipher
  - Support DNx100 (960x720@8)
 -- Direct3D11-accelerated decoding
 +- eq2 filter ported from libmpcodecs as eq filter
 +- removed libmpcodecs
 +- Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
 +- ported softpulldown filter from libmpcodecs as repeatfields filter
 +- dcshift filter
 +- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
 +- RTP depacketizer for AC3 payload format (RFC 4184)
 +- palettegen and paletteuse filters
 +- VP9 RTP payload format (draft 0) experimental depacketizer
 +- RTP depacketizer for DV (RFC 6469)
  - DXVA2-accelerated HEVC decoding
  - AAC ELD 480 decoding
  - Intel QSV-accelerated H.264 decoding
diff --cc configure
+++ b/configure
@@@ -2369,12 -1962,15 +2369,14 @@@ hap_decoder_select="snappy texturedsp
  hap_encoder_deps="libsnappy"
  hap_encoder_select="texturedspenc"
  hevc_decoder_select="bswapdsp cabac golomb videodsp"
 -hevc_nvenc_encoder_deps="nvenc"
 -hevc_qsv_encoder_deps="libmfx"
  hevc_qsv_decoder_deps="libmfx"
  hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
 +hevc_qsv_encoder_deps="libmfx"
  hevc_qsv_encoder_select="qsvenc"
 -huffyuv_decoder_select="bswapdsp huffyuvdsp"
 -huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
 +huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
 +huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
+ hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
+ hevc_vaapi_encoder_select="vaapi_encode golomb"
  iac_decoder_select="imc_decoder"
  imc_decoder_select="bswapdsp fft mdct sinewin"
  indeo3_decoder_select="hpeldsp"
@@@ -5465,15 -4467,12 +5467,16 @@@ check_lib "CoreServices/CoreServices.h
  check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
  
  check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
 +check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
  check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
 +check_type "windows.h d3d11.h" "ID3D11VideoContext"
  check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
  
 +check_type "va/va.h" "VAPictureParameterBufferHEVC"
 +check_type "va/va.h" "VADecPictureParameterBufferVP9"
  check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
  check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
+ check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
  
  check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
  
@@@ -323,8 -265,10 +323,9 @@@ OBJS-$(CONFIG_HAP_ENCODER)             
  OBJS-$(CONFIG_HEVC_DECODER)            += hevc.o hevc_mvs.o hevc_ps.o hevc_sei.o \
                                            hevc_cabac.o hevc_refs.o hevcpred.o    \
                                            hevcdsp.o hevc_filter.o h2645_parse.o hevc_data.o
 -OBJS-$(CONFIG_HEVC_NVENC_ENCODER)      += nvenc_hevc.o
  OBJS-$(CONFIG_HEVC_QSV_DECODER)        += qsvdec_h2645.o
  OBJS-$(CONFIG_HEVC_QSV_ENCODER)        += qsvenc_hevc.o hevc_ps_enc.o h2645_parse.o
+ OBJS-$(CONFIG_HEVC_VAAPI_ENCODER)      += vaapi_encode_h265.o vaapi_encode_h26x.o
  OBJS-$(CONFIG_HNM4_VIDEO_DECODER)      += hnm4video.o
  OBJS-$(CONFIG_HQ_HQA_DECODER)          += hq_hqa.o hq_hqadata.o hq_hqadsp.o \
                                            canopus.o
Simple merge
index 0000000,0aa40e3..87ebd57
mode 000000,100644..100644
--- /dev/null
@@@ -1,0 -1,1257 +1,1257 @@@
 - * This file is part of Libav.
+ /*
 - * Libav is free software; you can redistribute it and/or
++ * This file is part of FFmpeg.
+  *
 - * Libav is distributed in the hope that it will be useful,
++ * FFmpeg is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Lesser General Public
+  * License as published by the Free Software Foundation; either
+  * version 2.1 of the License, or (at your option) any later version.
+  *
 - * License along with Libav; if not, write to the Free Software
++ * FFmpeg is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  * Lesser General Public License for more details.
+  *
+  * You should have received a copy of the GNU Lesser General Public
++ * License along with FFmpeg; if not, write to the Free Software
+  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+  */
+ #include <va/va.h>
+ #include <va/va_enc_hevc.h>
+ #include "libavutil/avassert.h"
+ #include "libavutil/internal.h"
+ #include "libavutil/opt.h"
+ #include "libavutil/pixfmt.h"
+ #include "avcodec.h"
+ #include "hevc.h"
+ #include "internal.h"
+ #include "put_bits.h"
+ #include "vaapi_encode.h"
+ #include "vaapi_encode_h26x.h"
+ #define MAX_ST_REF_PIC_SETS  32
+ #define MAX_DPB_PICS         16
+ #define MAX_LAYERS            1
+ typedef struct VAAPIEncodeH265STRPS {
+     char inter_ref_pic_set_prediction_flag;
+     unsigned int num_negative_pics;
+     unsigned int num_positive_pics;
+     unsigned int delta_poc_s0_minus1[MAX_DPB_PICS];
+     char used_by_curr_pic_s0_flag[MAX_DPB_PICS];
+     unsigned int delta_poc_s1_minus1[MAX_DPB_PICS];
+     char used_by_curr_pic_s1_flag[MAX_DPB_PICS];
+ } VAAPIEncodeH265STRPS;
+ // This structure contains all possibly-useful per-sequence syntax elements
+ // which are not already contained in the various VAAPI structures.
+ typedef struct VAAPIEncodeH265MiscSequenceParams {
+     // Parameter set IDs.
+     unsigned int video_parameter_set_id;
+     unsigned int seq_parameter_set_id;
+     // Layering.
+     unsigned int vps_max_layers_minus1;
+     unsigned int vps_max_sub_layers_minus1;
+     char vps_temporal_id_nesting_flag;
+     unsigned int vps_max_layer_id;
+     unsigned int vps_num_layer_sets_minus1;
+     unsigned int sps_max_sub_layers_minus1;
+     char sps_temporal_id_nesting_flag;
+     char layer_id_included_flag[MAX_LAYERS][64];
+     // Profile/tier/level parameters.
+     char general_profile_compatibility_flag[32];
+     char general_progressive_source_flag;
+     char general_interlaced_source_flag;
+     char general_non_packed_constraint_flag;
+     char general_frame_only_constraint_flag;
+     char general_inbld_flag;
+     // Decode/display ordering parameters.
+     unsigned int log2_max_pic_order_cnt_lsb_minus4;
+     char vps_sub_layer_ordering_info_present_flag;
+     unsigned int vps_max_dec_pic_buffering_minus1[MAX_LAYERS];
+     unsigned int vps_max_num_reorder_pics[MAX_LAYERS];
+     unsigned int vps_max_latency_increase_plus1[MAX_LAYERS];
+     char sps_sub_layer_ordering_info_present_flag;
+     unsigned int sps_max_dec_pic_buffering_minus1[MAX_LAYERS];
+     unsigned int sps_max_num_reorder_pics[MAX_LAYERS];
+     unsigned int sps_max_latency_increase_plus1[MAX_LAYERS];
+     // Timing information.
+     char vps_timing_info_present_flag;
+     unsigned int vps_num_units_in_tick;
+     unsigned int vps_time_scale;
+     char vps_poc_proportional_to_timing_flag;
+     unsigned int vps_num_ticks_poc_diff_minus1;
+     // Cropping information.
+     char conformance_window_flag;
+     unsigned int conf_win_left_offset;
+     unsigned int conf_win_right_offset;
+     unsigned int conf_win_top_offset;
+     unsigned int conf_win_bottom_offset;
+     // Short-term reference picture sets.
+     unsigned int num_short_term_ref_pic_sets;
+     VAAPIEncodeH265STRPS st_ref_pic_set[MAX_ST_REF_PIC_SETS];
+     // Long-term reference pictures.
+     char long_term_ref_pics_present_flag;
+     unsigned int num_long_term_ref_pics_sps;
+     struct {
+         unsigned int lt_ref_pic_poc_lsb_sps;
+         char used_by_curr_pic_lt_sps_flag;
+     } lt_ref_pic;
+     // Deblocking filter control.
+     char deblocking_filter_control_present_flag;
+     char deblocking_filter_override_enabled_flag;
+     char pps_deblocking_filter_disabled_flag;
+     int pps_beta_offset_div2;
+     int pps_tc_offset_div2;
+     // Video Usability Information.
+     char vui_parameters_present_flag;
+     char aspect_ratio_info_present_flag;
+     unsigned int aspect_ratio_idc;
+     unsigned int sar_width;
+     unsigned int sar_height;
+     char video_signal_type_present_flag;
+     unsigned int video_format;
+     char video_full_range_flag;
+     char colour_description_present_flag;
+     unsigned int colour_primaries;
+     unsigned int transfer_characteristics;
+     unsigned int matrix_coeffs;
+     // Oddments.
+     char uniform_spacing_flag;
+     char output_flag_present_flag;
+     char cabac_init_present_flag;
+     unsigned int num_extra_slice_header_bits;
+     char lists_modification_present_flag;
+     char pps_slice_chroma_qp_offsets_present_flag;
+     char pps_slice_chroma_offset_list_enabled_flag;
+ } VAAPIEncodeH265MiscSequenceParams;
+ // This structure contains all possibly-useful per-slice syntax elements
+ // which are not already contained in the various VAAPI structures.
+ typedef struct VAAPIEncodeH265MiscSliceParams {
+     // Slice segments.
+     char first_slice_segment_in_pic_flag;
+     unsigned int slice_segment_address;
+     // Short-term reference picture sets.
+     char short_term_ref_pic_set_sps_flag;
+     unsigned int short_term_ref_pic_idx;
+     VAAPIEncodeH265STRPS st_ref_pic_set;
+     // Deblocking filter.
+     char deblocking_filter_override_flag;
+     // Oddments.
+     char slice_reserved_flag[8];
+     char no_output_of_prior_pics_flag;
+     char pic_output_flag;
+ } VAAPIEncodeH265MiscSliceParams;
+ typedef struct VAAPIEncodeH265Slice {
+     VAAPIEncodeH265MiscSliceParams misc_slice_params;
+     int64_t pic_order_cnt;
+ } VAAPIEncodeH265Slice;
+ typedef struct VAAPIEncodeH265Context {
+     VAAPIEncodeH265MiscSequenceParams misc_sequence_params;
+     unsigned int ctu_width;
+     unsigned int ctu_height;
+     int fixed_qp_idr;
+     int fixed_qp_p;
+     int fixed_qp_b;
+     int64_t last_idr_frame;
+ } VAAPIEncodeH265Context;
+ #define vseq_var(name)     vseq->name, name
+ #define vseq_field(name)   vseq->seq_fields.bits.name, name
+ #define vpic_var(name)     vpic->name, name
+ #define vpic_field(name)   vpic->pic_fields.bits.name, name
+ #define vslice_var(name)   vslice->name, name
+ #define vslice_field(name) vslice->slice_fields.bits.name, name
+ #define mseq_var(name)     mseq->name, name
+ #define mslice_var(name)   mslice->name, name
+ #define mstrps_var(name)   mstrps->name, name
+ static void vaapi_encode_h265_write_nal_unit_header(PutBitContext *pbc,
+                                                     int nal_unit_type)
+ {
+     u(1, 0, forbidden_zero_bit);
+     u(6, nal_unit_type, nal_unit_type);
+     u(6, 0, nuh_layer_id);
+     u(3, 1, nuh_temporal_id_plus1);
+ }
+ static void vaapi_encode_h265_write_rbsp_trailing_bits(PutBitContext *pbc)
+ {
+     u(1, 1, rbsp_stop_one_bit);
+     while (put_bits_count(pbc) & 7)
+         u(1, 0, rbsp_alignment_zero_bit);
+ }
+ static void vaapi_encode_h265_write_profile_tier_level(PutBitContext *pbc,
+                                                        VAAPIEncodeContext *ctx)
+ {
+     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     int j;
+     if (1) {
+         u(2, 0, general_profile_space);
+         u(1, vseq_var(general_tier_flag));
+         u(5, vseq_var(general_profile_idc));
+         for (j = 0; j < 32; j++) {
+             u(1, mseq_var(general_profile_compatibility_flag[j]));
+         }
+         u(1, mseq_var(general_progressive_source_flag));
+         u(1, mseq_var(general_interlaced_source_flag));
+         u(1, mseq_var(general_non_packed_constraint_flag));
+         u(1, mseq_var(general_frame_only_constraint_flag));
+         if (0) {
+             // Not main profile.
+             // Lots of extra constraint flags.
+         } else {
+             // put_bits only handles up to 31 bits.
+             u(23, 0, general_reserved_zero_43bits);
+             u(20, 0, general_reserved_zero_43bits);
+         }
+         if (vseq->general_profile_idc >= 1 && vseq->general_profile_idc <= 5) {
+             u(1, mseq_var(general_inbld_flag));
+         } else {
+             u(1, 0, general_reserved_zero_bit);
+         }
+     }
+     u(8, vseq_var(general_level_idc));
+     // No sublayers.
+ }
+ static void vaapi_encode_h265_write_vps(PutBitContext *pbc,
+                                         VAAPIEncodeContext *ctx)
+ {
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     int i, j;
+     vaapi_encode_h265_write_nal_unit_header(pbc, NAL_VPS);
+     u(4, mseq->video_parameter_set_id, vps_video_parameter_set_id);
+     u(1, 1, vps_base_layer_internal_flag);
+     u(1, 1, vps_base_layer_available_flag);
+     u(6, mseq_var(vps_max_layers_minus1));
+     u(3, mseq_var(vps_max_sub_layers_minus1));
+     u(1, mseq_var(vps_temporal_id_nesting_flag));
+     u(16, 0xffff, vps_reserved_0xffff_16bits);
+     vaapi_encode_h265_write_profile_tier_level(pbc, ctx);
+     u(1, mseq_var(vps_sub_layer_ordering_info_present_flag));
+     for (i = (mseq->vps_sub_layer_ordering_info_present_flag ?
+               0 : mseq->vps_max_sub_layers_minus1);
+          i <= mseq->vps_max_sub_layers_minus1; i++) {
+         ue(mseq_var(vps_max_dec_pic_buffering_minus1[i]));
+         ue(mseq_var(vps_max_num_reorder_pics[i]));
+         ue(mseq_var(vps_max_latency_increase_plus1[i]));
+     }
+     u(6, mseq_var(vps_max_layer_id));
+     ue(mseq_var(vps_num_layer_sets_minus1));
+     for (i = 1; i <= mseq->vps_num_layer_sets_minus1; i++) {
+         for (j = 0; j < mseq->vps_max_layer_id; j++)
+             u(1, mseq_var(layer_id_included_flag[i][j]));
+     }
+     u(1, mseq_var(vps_timing_info_present_flag));
+     if (mseq->vps_timing_info_present_flag) {
+         u(1, 0, put_bits_hack_zero_bit);
+         u(31, mseq_var(vps_num_units_in_tick));
+         u(1, 0, put_bits_hack_zero_bit);
+         u(31, mseq_var(vps_time_scale));
+         u(1, mseq_var(vps_poc_proportional_to_timing_flag));
+         if (mseq->vps_poc_proportional_to_timing_flag) {
+             ue(mseq_var(vps_num_ticks_poc_diff_minus1));
+         }
+         ue(0, vps_num_hrd_parameters);
+     }
+     u(1, 0, vps_extension_flag);
+     vaapi_encode_h265_write_rbsp_trailing_bits(pbc);
+ }
+ static void vaapi_encode_h265_write_st_ref_pic_set(PutBitContext *pbc,
+                                                    int st_rps_idx,
+                                                    VAAPIEncodeH265STRPS *mstrps)
+ {
+     int i;
+     if (st_rps_idx != 0)
+        u(1, mstrps_var(inter_ref_pic_set_prediction_flag));
+     if (mstrps->inter_ref_pic_set_prediction_flag) {
+         av_assert0(0 && "inter ref pic set prediction not supported");
+     } else {
+         ue(mstrps_var(num_negative_pics));
+         ue(mstrps_var(num_positive_pics));
+         for (i = 0; i < mstrps->num_negative_pics; i++) {
+             ue(mstrps_var(delta_poc_s0_minus1[i]));
+             u(1, mstrps_var(used_by_curr_pic_s0_flag[i]));
+         }
+         for (i = 0; i < mstrps->num_positive_pics; i++) {
+             ue(mstrps_var(delta_poc_s1_minus1[i]));
+             u(1, mstrps_var(used_by_curr_pic_s1_flag[i]));
+         }
+     }
+ }
+ static void vaapi_encode_h265_write_vui_parameters(PutBitContext *pbc,
+                                                    VAAPIEncodeContext *ctx)
+ {
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     u(1, mseq_var(aspect_ratio_info_present_flag));
+     if (mseq->aspect_ratio_info_present_flag) {
+         u(8, mseq_var(aspect_ratio_idc));
+         if (mseq->aspect_ratio_idc == 255) {
+             u(16, mseq_var(sar_width));
+             u(16, mseq_var(sar_height));
+         }
+     }
+     u(1, 0, overscan_info_present_flag);
+     u(1, mseq_var(video_signal_type_present_flag));
+     if (mseq->video_signal_type_present_flag) {
+         u(3, mseq_var(video_format));
+         u(1, mseq_var(video_full_range_flag));
+         u(1, mseq_var(colour_description_present_flag));
+         if (mseq->colour_description_present_flag) {
+             u(8, mseq_var(colour_primaries));
+             u(8, mseq_var(transfer_characteristics));
+             u(8, mseq_var(matrix_coeffs));
+         }
+     }
+     u(1, 0, chroma_loc_info_present_flag);
+     u(1, 0, neutral_chroma_indication_flag);
+     u(1, 0, field_seq_flag);
+     u(1, 0, frame_field_info_present_flag);
+     u(1, 0, default_display_window_flag);
+     u(1, 0, vui_timing_info_present_flag);
+     u(1, 0, bitstream_restriction_flag_flag);
+ }
+ static void vaapi_encode_h265_write_sps(PutBitContext *pbc,
+                                         VAAPIEncodeContext *ctx)
+ {
+     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     int i;
+     vaapi_encode_h265_write_nal_unit_header(pbc, NAL_SPS);
+     u(4, mseq->video_parameter_set_id, sps_video_parameter_set_id);
+     u(3, mseq_var(sps_max_sub_layers_minus1));
+     u(1, mseq_var(sps_temporal_id_nesting_flag));
+     vaapi_encode_h265_write_profile_tier_level(pbc, ctx);
+     ue(mseq->seq_parameter_set_id, sps_seq_parameter_set_id);
+     ue(vseq_field(chroma_format_idc));
+     if (vseq->seq_fields.bits.chroma_format_idc == 3)
+         u(1, 0, separate_colour_plane_flag);
+     ue(vseq_var(pic_width_in_luma_samples));
+     ue(vseq_var(pic_height_in_luma_samples));
+     u(1, mseq_var(conformance_window_flag));
+     if (mseq->conformance_window_flag) {
+         ue(mseq_var(conf_win_left_offset));
+         ue(mseq_var(conf_win_right_offset));
+         ue(mseq_var(conf_win_top_offset));
+         ue(mseq_var(conf_win_bottom_offset));
+     }
+     ue(vseq_field(bit_depth_luma_minus8));
+     ue(vseq_field(bit_depth_chroma_minus8));
+     ue(mseq_var(log2_max_pic_order_cnt_lsb_minus4));
+     u(1, mseq_var(sps_sub_layer_ordering_info_present_flag));
+     for (i = (mseq->sps_sub_layer_ordering_info_present_flag ?
+               0 : mseq->sps_max_sub_layers_minus1);
+          i <= mseq->sps_max_sub_layers_minus1; i++) {
+         ue(mseq_var(sps_max_dec_pic_buffering_minus1[i]));
+         ue(mseq_var(sps_max_num_reorder_pics[i]));
+         ue(mseq_var(sps_max_latency_increase_plus1[i]));
+     }
+     ue(vseq_var(log2_min_luma_coding_block_size_minus3));
+     ue(vseq_var(log2_diff_max_min_luma_coding_block_size));
+     ue(vseq_var(log2_min_transform_block_size_minus2));
+     ue(vseq_var(log2_diff_max_min_transform_block_size));
+     ue(vseq_var(max_transform_hierarchy_depth_inter));
+     ue(vseq_var(max_transform_hierarchy_depth_intra));
+     u(1, vseq_field(scaling_list_enabled_flag));
+     if (vseq->seq_fields.bits.scaling_list_enabled_flag) {
+         u(1, 0, sps_scaling_list_data_present_flag);
+     }
+     u(1, vseq_field(amp_enabled_flag));
+     u(1, vseq_field(sample_adaptive_offset_enabled_flag));
+     u(1, vseq_field(pcm_enabled_flag));
+     if (vseq->seq_fields.bits.pcm_enabled_flag) {
+         u(4, vseq_var(pcm_sample_bit_depth_luma_minus1));
+         u(4, vseq_var(pcm_sample_bit_depth_chroma_minus1));
+         ue(vseq_var(log2_min_pcm_luma_coding_block_size_minus3));
+         ue(vseq->log2_max_pcm_luma_coding_block_size_minus3 -
+            vseq->log2_min_pcm_luma_coding_block_size_minus3,
+            log2_diff_max_min_pcm_luma_coding_block_size);
+         u(1, vseq_field(pcm_loop_filter_disabled_flag));
+     }
+     ue(mseq_var(num_short_term_ref_pic_sets));
+     for (i = 0; i < mseq->num_short_term_ref_pic_sets; i++)
+         vaapi_encode_h265_write_st_ref_pic_set(pbc, i,
+                                                &mseq->st_ref_pic_set[i]);
+     u(1, mseq_var(long_term_ref_pics_present_flag));
+     if (mseq->long_term_ref_pics_present_flag) {
+         ue(0, num_long_term_ref_pics_sps);
+     }
+     u(1, vseq_field(sps_temporal_mvp_enabled_flag));
+     u(1, vseq_field(strong_intra_smoothing_enabled_flag));
+     u(1, mseq_var(vui_parameters_present_flag));
+     if (mseq->vui_parameters_present_flag) {
+         vaapi_encode_h265_write_vui_parameters(pbc, ctx);
+     }
+     u(1, 0, sps_extension_present_flag);
+     vaapi_encode_h265_write_rbsp_trailing_bits(pbc);
+ }
+ static void vaapi_encode_h265_write_pps(PutBitContext *pbc,
+                                         VAAPIEncodeContext *ctx)
+ {
+     VAEncPictureParameterBufferHEVC   *vpic = ctx->codec_picture_params;
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     int i;
+     vaapi_encode_h265_write_nal_unit_header(pbc, NAL_PPS);
+     ue(vpic->slice_pic_parameter_set_id, pps_pic_parameter_set_id);
+     ue(mseq->seq_parameter_set_id, pps_seq_parameter_set_id);
+     u(1, vpic_field(dependent_slice_segments_enabled_flag));
+     u(1, mseq_var(output_flag_present_flag));
+     u(3, mseq_var(num_extra_slice_header_bits));
+     u(1, vpic_field(sign_data_hiding_enabled_flag));
+     u(1, mseq_var(cabac_init_present_flag));
+     ue(vpic_var(num_ref_idx_l0_default_active_minus1));
+     ue(vpic_var(num_ref_idx_l1_default_active_minus1));
+     se(vpic->pic_init_qp - 26, init_qp_minus26);
+     u(1, vpic_field(constrained_intra_pred_flag));
+     u(1, vpic_field(transform_skip_enabled_flag));
+     u(1, vpic_field(cu_qp_delta_enabled_flag));
+     if (vpic->pic_fields.bits.cu_qp_delta_enabled_flag)
+         ue(vpic_var(diff_cu_qp_delta_depth));
+     se(vpic_var(pps_cb_qp_offset));
+     se(vpic_var(pps_cr_qp_offset));
+     u(1, mseq_var(pps_slice_chroma_qp_offsets_present_flag));
+     u(1, vpic_field(weighted_pred_flag));
+     u(1, vpic_field(weighted_bipred_flag));
+     u(1, vpic_field(transquant_bypass_enabled_flag));
+     u(1, vpic_field(tiles_enabled_flag));
+     u(1, vpic_field(entropy_coding_sync_enabled_flag));
+     if (vpic->pic_fields.bits.tiles_enabled_flag) {
+         ue(vpic_var(num_tile_columns_minus1));
+         ue(vpic_var(num_tile_rows_minus1));
+         u(1, mseq_var(uniform_spacing_flag));
+         if (!mseq->uniform_spacing_flag) {
+             for (i = 0; i < vpic->num_tile_columns_minus1; i++)
+                 ue(vpic_var(column_width_minus1[i]));
+             for (i = 0; i < vpic->num_tile_rows_minus1; i++)
+                 ue(vpic_var(row_height_minus1[i]));
+         }
+         u(1, vpic_field(loop_filter_across_tiles_enabled_flag));
+     }
+     u(1, vpic_field(pps_loop_filter_across_slices_enabled_flag));
+     u(1, mseq_var(deblocking_filter_control_present_flag));
+     if (mseq->deblocking_filter_control_present_flag) {
+         u(1, mseq_var(deblocking_filter_override_enabled_flag));
+         u(1, mseq_var(pps_deblocking_filter_disabled_flag));
+         if (!mseq->pps_deblocking_filter_disabled_flag) {
+             se(mseq_var(pps_beta_offset_div2));
+             se(mseq_var(pps_tc_offset_div2));
+         }
+     }
+     u(1, 0, pps_scaling_list_data_present_flag);
+     // No scaling list data.
+     u(1, mseq_var(lists_modification_present_flag));
+     ue(vpic_var(log2_parallel_merge_level_minus2));
+     u(1, 0, slice_segment_header_extension_present_flag);
+     u(1, 0, pps_extension_present_flag);
+     vaapi_encode_h265_write_rbsp_trailing_bits(pbc);
+ }
+ static void vaapi_encode_h265_write_slice_header2(PutBitContext *pbc,
+                                                   VAAPIEncodeContext *ctx,
+                                                   VAAPIEncodePicture *pic,
+                                                   VAAPIEncodeSlice *slice)
+ {
+     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;
+     VAEncPictureParameterBufferHEVC   *vpic = pic->codec_picture_params;
+     VAEncSliceParameterBufferHEVC   *vslice = slice->codec_slice_params;
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     VAAPIEncodeH265Slice            *pslice = slice->priv_data;
+     VAAPIEncodeH265MiscSliceParams  *mslice = &pslice->misc_slice_params;
+     int i;
+     vaapi_encode_h265_write_nal_unit_header(pbc, vpic->nal_unit_type);
+     u(1, mslice_var(first_slice_segment_in_pic_flag));
+     if (vpic->nal_unit_type >= NAL_BLA_W_LP &&
+        vpic->nal_unit_type <= 23)
+         u(1, mslice_var(no_output_of_prior_pics_flag));
+     ue(vslice_var(slice_pic_parameter_set_id));
+     if (!mslice->first_slice_segment_in_pic_flag) {
+         if (vpic->pic_fields.bits.dependent_slice_segments_enabled_flag)
+             u(1, vslice_field(dependent_slice_segment_flag));
+         u(av_log2((priv->ctu_width * priv->ctu_height) - 1) + 1,
+           mslice_var(slice_segment_address));
+     }
+     if (!vslice->slice_fields.bits.dependent_slice_segment_flag) {
+         for (i = 0; i < mseq->num_extra_slice_header_bits; i++)
+             u(1, mslice_var(slice_reserved_flag[i]));
+         ue(vslice_var(slice_type));
+         if (mseq->output_flag_present_flag)
+             u(1, 1, pic_output_flag);
+         if (vseq->seq_fields.bits.separate_colour_plane_flag)
+             u(2, vslice_field(colour_plane_id));
+         if (vpic->nal_unit_type != NAL_IDR_W_RADL &&
+            vpic->nal_unit_type != NAL_IDR_N_LP) {
+             u(4 + mseq->log2_max_pic_order_cnt_lsb_minus4,
+               (pslice->pic_order_cnt &
+                ((1 << (mseq->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1)),
+               slice_pic_order_cnt_lsb);
+             u(1, mslice_var(short_term_ref_pic_set_sps_flag));
+             if (!mslice->short_term_ref_pic_set_sps_flag) {
+                 vaapi_encode_h265_write_st_ref_pic_set(pbc, mseq->num_short_term_ref_pic_sets,
+                                                        &mslice->st_ref_pic_set);
+             } else if (mseq->num_short_term_ref_pic_sets > 1) {
+                 u(av_log2(mseq->num_short_term_ref_pic_sets - 1) + 1,
+                   mslice_var(short_term_ref_pic_idx));
+             }
+             if (mseq->long_term_ref_pics_present_flag) {
+                 av_assert0(0);
+             }
+             if (vseq->seq_fields.bits.sps_temporal_mvp_enabled_flag) {
+                 u(1, vslice_field(slice_temporal_mvp_enabled_flag));
+             }
+             if (vseq->seq_fields.bits.sample_adaptive_offset_enabled_flag) {
+                 u(1, vslice_field(slice_sao_luma_flag));
+                 if (!vseq->seq_fields.bits.separate_colour_plane_flag &&
+                    vseq->seq_fields.bits.chroma_format_idc != 0) {
+                     u(1, vslice_field(slice_sao_chroma_flag));
+                 }
+             }
+             if (vslice->slice_type == P_SLICE || vslice->slice_type == B_SLICE) {
+                 u(1, vslice_field(num_ref_idx_active_override_flag));
+                 if (vslice->slice_fields.bits.num_ref_idx_active_override_flag) {
+                     ue(vslice_var(num_ref_idx_l0_active_minus1));
+                     if (vslice->slice_type == B_SLICE) {
+                         ue(vslice_var(num_ref_idx_l1_active_minus1));
+                     }
+                 }
+                 if (mseq->lists_modification_present_flag) {
+                     av_assert0(0);
+                     // ref_pic_lists_modification()
+                 }
+                 if (vslice->slice_type == B_SLICE) {
+                     u(1, vslice_field(mvd_l1_zero_flag));
+                 }
+                 if (mseq->cabac_init_present_flag) {
+                     u(1, vslice_field(cabac_init_flag));
+                 }
+                 if (vslice->slice_fields.bits.slice_temporal_mvp_enabled_flag) {
+                     if (vslice->slice_type == B_SLICE)
+                         u(1, vslice_field(collocated_from_l0_flag));
+                     ue(vpic->collocated_ref_pic_index, collocated_ref_idx);
+                 }
+                 if ((vpic->pic_fields.bits.weighted_pred_flag &&
+                      vslice->slice_type == P_SLICE) ||
+                     (vpic->pic_fields.bits.weighted_bipred_flag &&
+                      vslice->slice_type == B_SLICE)) {
+                     av_assert0(0);
+                     // pred_weight_table()
+                 }
+                 ue(5 - vslice->max_num_merge_cand, five_minus_max_num_merge_cand);
+             }
+             se(vslice_var(slice_qp_delta));
+             if (mseq->pps_slice_chroma_qp_offsets_present_flag) {
+                 se(vslice_var(slice_cb_qp_offset));
+                 se(vslice_var(slice_cr_qp_offset));
+             }
+             if (mseq->pps_slice_chroma_offset_list_enabled_flag) {
+                 u(1, 0, cu_chroma_qp_offset_enabled_flag);
+             }
+             if (mseq->deblocking_filter_override_enabled_flag) {
+                 u(1, mslice_var(deblocking_filter_override_flag));
+             }
+             if (mslice->deblocking_filter_override_flag) {
+                 u(1, vslice_field(slice_deblocking_filter_disabled_flag));
+                 if (!vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag) {
+                     se(vslice_var(slice_beta_offset_div2));
+                     se(vslice_var(slice_tc_offset_div2));
+                 }
+             }
+             if (vpic->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag &&
+                 (vslice->slice_fields.bits.slice_sao_luma_flag ||
+                  vslice->slice_fields.bits.slice_sao_chroma_flag ||
+                  vslice->slice_fields.bits.slice_deblocking_filter_disabled_flag)) {
+                 u(1, vslice_field(slice_loop_filter_across_slices_enabled_flag));
+             }
+         }
+         if (vpic->pic_fields.bits.tiles_enabled_flag ||
+             vpic->pic_fields.bits.entropy_coding_sync_enabled_flag) {
+             // num_entry_point_offsets
+         }
+         if (0) {
+             // slice_segment_header_extension_length
+         }
+     }
+     u(1, 1, alignment_bit_equal_to_one);
+     while (put_bits_count(pbc) & 7)
+         u(1, 0, alignment_bit_equal_to_zero);
+ }
+ static int vaapi_encode_h265_write_sequence_header(AVCodecContext *avctx,
+                                                    char *data, size_t *data_len)
+ {
+     VAAPIEncodeContext *ctx = avctx->priv_data;
+     PutBitContext pbc;
+     char tmp[256];
+     int err;
+     size_t nal_len, bit_len, bit_pos, next_len;
+     bit_len = *data_len;
+     bit_pos = 0;
+     init_put_bits(&pbc, tmp, sizeof(tmp));
+     vaapi_encode_h265_write_vps(&pbc, ctx);
+     nal_len = put_bits_count(&pbc);
+     flush_put_bits(&pbc);
+     next_len = bit_len - bit_pos;
+     err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
+                                                        &next_len,
+                                                        tmp, nal_len);
+     if (err < 0)
+         return err;
+     bit_pos += next_len;
+     init_put_bits(&pbc, tmp, sizeof(tmp));
+     vaapi_encode_h265_write_sps(&pbc, ctx);
+     nal_len = put_bits_count(&pbc);
+     flush_put_bits(&pbc);
+     next_len = bit_len - bit_pos;
+     err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
+                                                        &next_len,
+                                                        tmp, nal_len);
+     if (err < 0)
+         return err;
+     bit_pos += next_len;
+     init_put_bits(&pbc, tmp, sizeof(tmp));
+     vaapi_encode_h265_write_pps(&pbc, ctx);
+     nal_len = put_bits_count(&pbc);
+     flush_put_bits(&pbc);
+     next_len = bit_len - bit_pos;
+     err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8,
+                                                        &next_len,
+                                                        tmp, nal_len);
+     if (err < 0)
+         return err;
+     bit_pos += next_len;
+     *data_len = bit_pos;
+     return 0;
+ }
+ static int vaapi_encode_h265_write_slice_header(AVCodecContext *avctx,
+                                                 VAAPIEncodePicture *pic,
+                                                 VAAPIEncodeSlice *slice,
+                                                 char *data, size_t *data_len)
+ {
+     VAAPIEncodeContext *ctx = avctx->priv_data;
+     PutBitContext pbc;
+     char tmp[256];
+     size_t header_len;
+     init_put_bits(&pbc, tmp, sizeof(tmp));
+     vaapi_encode_h265_write_slice_header2(&pbc, ctx, pic, slice);
+     header_len = put_bits_count(&pbc);
+     flush_put_bits(&pbc);
+     return ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data, data_len,
+                                                         tmp, header_len);
+ }
+ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
+ {
+     VAAPIEncodeContext                 *ctx = avctx->priv_data;
+     VAEncSequenceParameterBufferHEVC  *vseq = ctx->codec_sequence_params;
+     VAEncPictureParameterBufferHEVC   *vpic = ctx->codec_picture_params;
+     VAAPIEncodeH265Context            *priv = ctx->priv_data;
+     VAAPIEncodeH265MiscSequenceParams *mseq = &priv->misc_sequence_params;
+     int i;
+     {
+         // general_profile_space == 0.
+         vseq->general_profile_idc = 1; // Main profile (ctx->codec_profile?)
+         vseq->general_tier_flag = 0;
+         vseq->general_level_idc = avctx->level * 3;
+         vseq->intra_period = 0;
+         vseq->intra_idr_period = 0;
+         vseq->ip_period = 0;
+         vseq->pic_width_in_luma_samples  = ctx->aligned_width;
+         vseq->pic_height_in_luma_samples = ctx->aligned_height;
+         vseq->seq_fields.bits.chroma_format_idc = 1; // 4:2:0.
+         vseq->seq_fields.bits.separate_colour_plane_flag = 0;
+         vseq->seq_fields.bits.bit_depth_luma_minus8 = 0; // 8-bit luma.
+         vseq->seq_fields.bits.bit_depth_chroma_minus8 = 0; // 8-bit chroma.
+         // Other misc flags all zero.
+         // These have to come from the capabilities of the encoder.  We have
+         // no way to query it, so just hardcode ones which worked for me...
+         // CTB size from 8x8 to 32x32.
+         vseq->log2_min_luma_coding_block_size_minus3 = 0;
+         vseq->log2_diff_max_min_luma_coding_block_size = 2;
+         // Transform size from 4x4 to 32x32.
+         vseq->log2_min_transform_block_size_minus2 = 0;
+         vseq->log2_diff_max_min_transform_block_size = 3;
+         // Full transform hierarchy allowed (2-5).
+         vseq->max_transform_hierarchy_depth_inter = 3;
+         vseq->max_transform_hierarchy_depth_intra = 3;
+         vseq->vui_parameters_present_flag = 0;
+     }
+     {
+         vpic->decoded_curr_pic.picture_id = VA_INVALID_ID;
+         vpic->decoded_curr_pic.flags      = VA_PICTURE_HEVC_INVALID;
+         for (i = 0; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
+             vpic->reference_frames[i].picture_id = VA_INVALID_ID;
+             vpic->reference_frames[i].flags      = VA_PICTURE_HEVC_INVALID;
+         }
+         vpic->collocated_ref_pic_index = 0xff;
+         vpic->last_picture = 0;
+         vpic->pic_init_qp = priv->fixed_qp_idr;
+         vpic->diff_cu_qp_delta_depth = 0;
+         vpic->pps_cb_qp_offset = 0;
+         vpic->pps_cr_qp_offset = 0;
+         // tiles_enabled_flag == 0, so ignore num_tile_(rows|columns)_minus1.
+         vpic->log2_parallel_merge_level_minus2 = 0;
+         // No limit on size.
+         vpic->ctu_max_bitsize_allowed = 0;
+         vpic->num_ref_idx_l0_default_active_minus1 = 0;
+         vpic->num_ref_idx_l1_default_active_minus1 = 0;
+         vpic->slice_pic_parameter_set_id = 0;
+         vpic->pic_fields.bits.screen_content_flag = 0;
+         vpic->pic_fields.bits.enable_gpu_weighted_prediction = 0;
+         //vpic->pic_fields.bits.cu_qp_delta_enabled_flag = 1;
+     }
+     {
+         mseq->video_parameter_set_id = 5;
+         mseq->seq_parameter_set_id = 5;
+         mseq->vps_max_layers_minus1 = 0;
+         mseq->vps_max_sub_layers_minus1 = 0;
+         mseq->vps_temporal_id_nesting_flag = 1;
+         mseq->sps_max_sub_layers_minus1 = 0;
+         mseq->sps_temporal_id_nesting_flag = 1;
+         for (i = 0; i < 32; i++) {
+             mseq->general_profile_compatibility_flag[i] =
+                 (i == vseq->general_profile_idc);
+         }
+         mseq->general_progressive_source_flag    = 1;
+         mseq->general_interlaced_source_flag     = 0;
+         mseq->general_non_packed_constraint_flag = 0;
+         mseq->general_frame_only_constraint_flag = 1;
+         mseq->general_inbld_flag = 0;
+         mseq->log2_max_pic_order_cnt_lsb_minus4 = 8;
+         mseq->vps_sub_layer_ordering_info_present_flag = 0;
+         mseq->vps_max_dec_pic_buffering_minus1[0] = 1;
+         mseq->vps_max_num_reorder_pics[0]         = ctx->b_per_p;
+         mseq->vps_max_latency_increase_plus1[0]   = 0;
+         mseq->sps_sub_layer_ordering_info_present_flag = 0;
+         mseq->sps_max_dec_pic_buffering_minus1[0] = 1;
+         mseq->sps_max_num_reorder_pics[0]         = ctx->b_per_p;
+         mseq->sps_max_latency_increase_plus1[0]   = 0;
+         mseq->vps_timing_info_present_flag = 1;
+         mseq->vps_num_units_in_tick = avctx->time_base.num;
+         mseq->vps_time_scale        = avctx->time_base.den;
+         mseq->vps_poc_proportional_to_timing_flag = 1;
+         mseq->vps_num_ticks_poc_diff_minus1 = 0;
+         if (ctx->input_width  != ctx->aligned_width ||
+             ctx->input_height != ctx->aligned_height) {
+             mseq->conformance_window_flag = 1;
+             mseq->conf_win_left_offset   = 0;
+             mseq->conf_win_right_offset  =
+                 (ctx->aligned_width - ctx->input_width) / 2;
+             mseq->conf_win_top_offset    = 0;
+             mseq->conf_win_bottom_offset =
+                 (ctx->aligned_height - ctx->input_height) / 2;
+         } else {
+             mseq->conformance_window_flag = 0;
+         }
+         mseq->num_short_term_ref_pic_sets = 0;
+         // STRPSs should ideally be here rather than repeated in each slice.
+         mseq->vui_parameters_present_flag = 1;
+         if (avctx->sample_aspect_ratio.num != 0) {
+             mseq->aspect_ratio_info_present_flag = 1;
+             if (avctx->sample_aspect_ratio.num ==
+                 avctx->sample_aspect_ratio.den) {
+                 mseq->aspect_ratio_idc = 1;
+             } else {
+                 mseq->aspect_ratio_idc = 255; // Extended SAR.
+                 mseq->sar_width  = avctx->sample_aspect_ratio.num;
+                 mseq->sar_height = avctx->sample_aspect_ratio.den;
+             }
+         }
+         if (1) {
+             // Should this be conditional on some of these being set?
+             mseq->video_signal_type_present_flag = 1;
+             mseq->video_format = 5; // Unspecified.
+             mseq->video_full_range_flag = 0;
+             mseq->colour_description_present_flag = 1;
+             mseq->colour_primaries = avctx->color_primaries;
+             mseq->transfer_characteristics = avctx->color_trc;
+             mseq->matrix_coeffs = avctx->colorspace;
+         }
+     }
+     return 0;
+ }
+ static int vaapi_encode_h265_init_picture_params(AVCodecContext *avctx,
+                                                  VAAPIEncodePicture *pic)
+ {
+     VAAPIEncodeContext               *ctx = avctx->priv_data;
+     VAEncPictureParameterBufferHEVC *vpic = pic->codec_picture_params;
+     VAAPIEncodeH265Context          *priv = ctx->priv_data;
+     int i;
+     if (pic->type == PICTURE_TYPE_IDR) {
+         av_assert0(pic->display_order == pic->encode_order);
+         priv->last_idr_frame = pic->display_order;
+     } else {
+         av_assert0(pic->encode_order > priv->last_idr_frame);
+         // Display order need not be if we have RA[SD]L pictures, though.
+     }
+     vpic->decoded_curr_pic.picture_id    = pic->recon_surface;
+     vpic->decoded_curr_pic.pic_order_cnt =
+         pic->display_order - priv->last_idr_frame;
+     vpic->decoded_curr_pic.flags         = 0;
+     for (i = 0; i < pic->nb_refs; i++) {
+         VAAPIEncodePicture *ref = pic->refs[i];
+         av_assert0(ref);
+         vpic->reference_frames[i].picture_id    = ref->recon_surface;
+         vpic->reference_frames[i].pic_order_cnt =
+             ref->display_order - priv->last_idr_frame;
+         vpic->reference_frames[i].flags =
+             (ref->display_order < pic->display_order ?
+              VA_PICTURE_HEVC_RPS_ST_CURR_BEFORE : 0) |
+             (ref->display_order > pic->display_order ?
+              VA_PICTURE_HEVC_RPS_ST_CURR_AFTER  : 0);
+     }
+     for (; i < FF_ARRAY_ELEMS(vpic->reference_frames); i++) {
+         vpic->reference_frames[i].picture_id = VA_INVALID_ID;
+         vpic->reference_frames[i].flags      = VA_PICTURE_HEVC_INVALID;
+     }
+     vpic->coded_buf = pic->output_buffer;
+     switch (pic->type) {
+     case PICTURE_TYPE_IDR:
+         vpic->nal_unit_type = NAL_IDR_W_RADL;
+         vpic->pic_fields.bits.idr_pic_flag = 1;
+         vpic->pic_fields.bits.coding_type  = 1;
+         vpic->pic_fields.bits.reference_pic_flag = 1;
+         break;
+     case PICTURE_TYPE_I:
+         vpic->nal_unit_type = NAL_TRAIL_R;
+         vpic->pic_fields.bits.idr_pic_flag = 0;
+         vpic->pic_fields.bits.coding_type  = 1;
+         vpic->pic_fields.bits.reference_pic_flag = 1;
+         break;
+     case PICTURE_TYPE_P:
+         vpic->nal_unit_type = NAL_TRAIL_R;
+         vpic->pic_fields.bits.idr_pic_flag = 0;
+         vpic->pic_fields.bits.coding_type  = 2;
+         vpic->pic_fields.bits.reference_pic_flag = 1;
+         break;
+     case PICTURE_TYPE_B:
+         vpic->nal_unit_type = NAL_TRAIL_R;
+         vpic->pic_fields.bits.idr_pic_flag = 0;
+         vpic->pic_fields.bits.coding_type  = 3;
+         vpic->pic_fields.bits.reference_pic_flag = 0;
+         break;
+     default:
+         av_assert0(0 && "invalid picture type");
+     }
+     pic->nb_slices = 1;
+     return 0;
+ }
+ static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
+                                                VAAPIEncodePicture *pic,
+                                                VAAPIEncodeSlice *slice)
+ {
+     VAAPIEncodeContext                *ctx = avctx->priv_data;
+     VAEncPictureParameterBufferHEVC  *vpic = pic->codec_picture_params;
+     VAEncSliceParameterBufferHEVC  *vslice = slice->codec_slice_params;
+     VAAPIEncodeH265Context           *priv = ctx->priv_data;
+     VAAPIEncodeH265Slice           *pslice;
+     VAAPIEncodeH265MiscSliceParams *mslice;
+     int i;
+     slice->priv_data = av_mallocz(sizeof(*pslice));
+     if (!slice->priv_data)
+         return AVERROR(ENOMEM);
+     pslice = slice->priv_data;
+     mslice = &pslice->misc_slice_params;
+     // Currently we only support one slice per frame.
+     vslice->slice_segment_address = 0;
+     vslice->num_ctu_in_slice = priv->ctu_width * priv->ctu_height;
+     switch (pic->type) {
+     case PICTURE_TYPE_IDR:
+     case PICTURE_TYPE_I:
+         vslice->slice_type = I_SLICE;
+         break;
+     case PICTURE_TYPE_P:
+         vslice->slice_type = P_SLICE;
+         break;
+     case PICTURE_TYPE_B:
+         vslice->slice_type = B_SLICE;
+         break;
+     default:
+         av_assert0(0 && "invalid picture type");
+     }
+     vslice->slice_pic_parameter_set_id = vpic->slice_pic_parameter_set_id;
+     pslice->pic_order_cnt = pic->display_order - priv->last_idr_frame;
+     for (i = 0; i < FF_ARRAY_ELEMS(vslice->ref_pic_list0); i++) {
+         vslice->ref_pic_list0[i].picture_id = VA_INVALID_ID;
+         vslice->ref_pic_list0[i].flags      = VA_PICTURE_HEVC_INVALID;
+         vslice->ref_pic_list1[i].picture_id = VA_INVALID_ID;
+         vslice->ref_pic_list1[i].flags      = VA_PICTURE_HEVC_INVALID;
+     }
+     av_assert0(pic->nb_refs <= 2);
+     if (pic->nb_refs >= 1) {
+         // Backward reference for P or B frame.
+         av_assert0(pic->type == PICTURE_TYPE_P ||
+                    pic->type == PICTURE_TYPE_B);
+         vslice->num_ref_idx_l0_active_minus1 = 0;
+         vslice->ref_pic_list0[0] = vpic->reference_frames[0];
+     }
+     if (pic->nb_refs >= 2) {
+         // Forward reference for B frame.
+         av_assert0(pic->type == PICTURE_TYPE_B);
+         vslice->num_ref_idx_l1_active_minus1 = 0;
+         vslice->ref_pic_list1[0] = vpic->reference_frames[1];
+     }
+     vslice->max_num_merge_cand = 5;
+     if (pic->type == PICTURE_TYPE_B)
+         vslice->slice_qp_delta = priv->fixed_qp_b  - vpic->pic_init_qp;
+     else if (pic->type == PICTURE_TYPE_P)
+         vslice->slice_qp_delta = priv->fixed_qp_p - vpic->pic_init_qp;
+     else
+         vslice->slice_qp_delta = priv->fixed_qp_idr - vpic->pic_init_qp;
+     vslice->slice_fields.bits.last_slice_of_pic_flag = 1;
+     mslice->first_slice_segment_in_pic_flag = 1;
+     if (pic->type == PICTURE_TYPE_IDR) {
+         // No reference pictures.
+     } else if (0) {
+         mslice->short_term_ref_pic_set_sps_flag = 1;
+         mslice->short_term_ref_pic_idx = 0;
+     } else {
+         VAAPIEncodePicture *st;
+         int used;
+         mslice->short_term_ref_pic_set_sps_flag = 0;
+         mslice->st_ref_pic_set.inter_ref_pic_set_prediction_flag = 0;
+         for (st = ctx->pic_start; st; st = st->next) {
+             if (st->encode_order >= pic->encode_order) {
+                 // Not yet in DPB.
+                 continue;
+             }
+             used = 0;
+             for (i = 0; i < pic->nb_refs; i++) {
+                 if (pic->refs[i] == st)
+                     used = 1;
+             }
+             if (!used) {
+                 // Currently true, but need not be.
+                 continue;
+             }
+             // This only works for one instance of each (delta_poc_sN_minus1
+             // is relative to the previous frame in the list, not relative to
+             // the current frame directly).
+             if (st->display_order < pic->display_order) {
+                 i = mslice->st_ref_pic_set.num_negative_pics;
+                 mslice->st_ref_pic_set.delta_poc_s0_minus1[i] =
+                     pic->display_order - st->display_order - 1;
+                 mslice->st_ref_pic_set.used_by_curr_pic_s0_flag[i] = used;
+                 ++mslice->st_ref_pic_set.num_negative_pics;
+             } else {
+                 i = mslice->st_ref_pic_set.num_positive_pics;
+                 mslice->st_ref_pic_set.delta_poc_s1_minus1[i] =
+                     st->display_order - pic->display_order - 1;
+                 mslice->st_ref_pic_set.used_by_curr_pic_s1_flag[i] = used;
+                 ++mslice->st_ref_pic_set.num_positive_pics;
+             }
+         }
+     }
+     return 0;
+ }
+ static VAConfigAttrib vaapi_encode_h265_config_attributes[] = {
+     { .type  = VAConfigAttribRTFormat,
+       .value = VA_RT_FORMAT_YUV420 },
+     { .type  = VAConfigAttribRateControl,
+       .value = VA_RC_CQP },
+     { .type  = VAConfigAttribEncPackedHeaders,
+       .value = (VA_ENC_PACKED_HEADER_SEQUENCE |
+                 VA_ENC_PACKED_HEADER_SLICE) },
+ };
+ static av_cold int vaapi_encode_h265_init_internal(AVCodecContext *avctx)
+ {
+     VAAPIEncodeContext      *ctx = avctx->priv_data;
+     VAAPIEncodeH265Context *priv = ctx->priv_data;
+     switch (avctx->profile) {
+     case FF_PROFILE_HEVC_MAIN:
+     case FF_PROFILE_UNKNOWN:
+         ctx->va_profile = VAProfileHEVCMain;
+         break;
+     case FF_PROFILE_HEVC_MAIN_10:
+         av_log(avctx, AV_LOG_ERROR, "H.265 main 10-bit profile "
+                "is not supported.\n");
+         return AVERROR_PATCHWELCOME;
+     default:
+         av_log(avctx, AV_LOG_ERROR, "Unknown H.265 profile %d.\n",
+                avctx->profile);
+         return AVERROR(EINVAL);
+     }
+     ctx->va_entrypoint = VAEntrypointEncSlice;
+     ctx->va_rc_mode  = VA_RC_CQP;
+     ctx->input_width    = avctx->width;
+     ctx->input_height   = avctx->height;
+     ctx->aligned_width  = FFALIGN(ctx->input_width,  16);
+     ctx->aligned_height = FFALIGN(ctx->input_height, 16);
+     priv->ctu_width     = FFALIGN(ctx->aligned_width,  32) / 32;
+     priv->ctu_height    = FFALIGN(ctx->aligned_height, 32) / 32;
+     av_log(avctx, AV_LOG_VERBOSE, "Input %ux%u -> Aligned %ux%u -> CTU %ux%u.\n",
+            ctx->input_width, ctx->input_height, ctx->aligned_width,
+            ctx->aligned_height, priv->ctu_width, priv->ctu_height);
+     priv->fixed_qp_p = avctx->global_quality;
+     if (avctx->i_quant_factor > 0.0)
+         priv->fixed_qp_idr = (int)((priv->fixed_qp_p * avctx->i_quant_factor +
+                                     avctx->i_quant_offset) + 0.5);
+     else
+         priv->fixed_qp_idr = priv->fixed_qp_p;
+     if (avctx->b_quant_factor > 0.0)
+         priv->fixed_qp_b = (int)((priv->fixed_qp_p * avctx->b_quant_factor +
+                                   avctx->b_quant_offset) + 0.5);
+     else
+         priv->fixed_qp_b = priv->fixed_qp_p;
+     av_log(avctx, AV_LOG_DEBUG, "QP = %d / %d / %d for IDR / P / B frames.\n",
+            priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
+     ctx->config_attributes = vaapi_encode_h265_config_attributes;
+     ctx->nb_config_attributes =
+         FF_ARRAY_ELEMS(vaapi_encode_h265_config_attributes);
+     ctx->nb_recon_frames = 20;
+     return 0;
+ }
+ static VAAPIEncodeType vaapi_encode_type_h265 = {
+     .priv_data_size        = sizeof(VAAPIEncodeH265Context),
+     .init                  = &vaapi_encode_h265_init_internal,
+     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferHEVC),
+     .init_sequence_params  = &vaapi_encode_h265_init_sequence_params,
+     .picture_params_size   = sizeof(VAEncPictureParameterBufferHEVC),
+     .init_picture_params   = &vaapi_encode_h265_init_picture_params,
+     .slice_params_size     = sizeof(VAEncSliceParameterBufferHEVC),
+     .init_slice_params     = &vaapi_encode_h265_init_slice_params,
+     .sequence_header_type  = VAEncPackedHeaderSequence,
+     .write_sequence_header = &vaapi_encode_h265_write_sequence_header,
+     .slice_header_type     = VAEncPackedHeaderHEVC_Slice,
+     .write_slice_header    = &vaapi_encode_h265_write_slice_header,
+ };
+ static av_cold int vaapi_encode_h265_init(AVCodecContext *avctx)
+ {
+     return ff_vaapi_encode_init(avctx, &vaapi_encode_type_h265);
+ }
+ static const AVCodecDefault vaapi_encode_h265_defaults[] = {
+     { "profile",        "1"   },
+     { "level",          "51"  },
+     { "b",              "0"   },
+     { "bf",             "2"   },
+     { "g",              "120" },
+     { "global_quality", "25"  },
+     { "i_qfactor",      "1.0" },
+     { "i_qoffset",      "0.0" },
+     { "b_qfactor",      "1.2" },
+     { "b_qoffset",      "0.0" },
+     { NULL },
+ };
+ static const AVClass vaapi_encode_h265_class = {
+     .class_name = "h265_vaapi",
+     .item_name  = av_default_item_name,
+     .version    = LIBAVUTIL_VERSION_INT,
+ };
+ AVCodec ff_hevc_vaapi_encoder = {
+     .name           = "hevc_vaapi",
+     .long_name      = NULL_IF_CONFIG_SMALL("H.265/HEVC (VAAPI)"),
+     .type           = AVMEDIA_TYPE_VIDEO,
+     .id             = AV_CODEC_ID_HEVC,
+     .priv_data_size = sizeof(VAAPIEncodeContext),
+     .init           = &vaapi_encode_h265_init,
+     .encode2        = &ff_vaapi_encode2,
+     .close          = &ff_vaapi_encode_close,
+     .priv_class     = &vaapi_encode_h265_class,
+     .capabilities   = AV_CODEC_CAP_DELAY,
+     .defaults       = vaapi_encode_h265_defaults,
+     .pix_fmts = (const enum AVPixelFormat[]) {
+         AV_PIX_FMT_VAAPI,
+         AV_PIX_FMT_NONE,
+     },
+ };