1358 lines
		
	
	
		
			48 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1358 lines
		
	
	
		
			48 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * This file is part of FFmpeg.
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|  *
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|  * FFmpeg is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU Lesser General Public
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|  * License as published by the Free Software Foundation; either
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|  * version 2.1 of the License, or (at your option) any later version.
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|  *
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|  * FFmpeg is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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|  * Lesser General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU Lesser General Public
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|  * License along with FFmpeg; if not, write to the Free Software
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|  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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|  */
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| 
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| #include <va/va.h>
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| #include <va/va_enc_h264.h>
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| 
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| #include "libavutil/avassert.h"
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| #include "libavutil/internal.h"
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| #include "libavutil/opt.h"
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| #include "libavutil/pixfmt.h"
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| 
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| #include "avcodec.h"
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| #include "h264.h"
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| #include "h264_sei.h"
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| #include "internal.h"
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| #include "vaapi_encode.h"
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| #include "vaapi_encode_h26x.h"
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| 
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| enum {
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|     SLICE_TYPE_P  = 0,
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|     SLICE_TYPE_B  = 1,
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|     SLICE_TYPE_I  = 2,
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|     SLICE_TYPE_SP = 3,
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|     SLICE_TYPE_SI = 4,
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| };
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| 
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| // This structure contains all possibly-useful per-sequence syntax elements
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| // which are not already contained in the various VAAPI structures.
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| typedef struct VAAPIEncodeH264MiscSequenceParams {
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|     unsigned int profile_idc;
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|     char constraint_set0_flag;
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|     char constraint_set1_flag;
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|     char constraint_set2_flag;
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|     char constraint_set3_flag;
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|     char constraint_set4_flag;
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|     char constraint_set5_flag;
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| 
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|     char separate_colour_plane_flag;
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|     char qpprime_y_zero_transform_bypass_flag;
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| 
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|     char gaps_in_frame_num_allowed_flag;
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|     char delta_pic_order_always_zero_flag;
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|     char bottom_field_pic_order_in_frame_present_flag;
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| 
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|     unsigned int num_slice_groups_minus1;
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|     unsigned int slice_group_map_type;
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| 
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|     int pic_init_qs_minus26;
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| 
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|     char overscan_info_present_flag;
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|     char overscan_appropriate_flag;
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| 
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|     char video_signal_type_present_flag;
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|     unsigned int video_format;
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|     char video_full_range_flag;
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|     char colour_description_present_flag;
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|     unsigned int colour_primaries;
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|     unsigned int transfer_characteristics;
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|     unsigned int matrix_coefficients;
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| 
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|     char chroma_loc_info_present_flag;
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|     unsigned int chroma_sample_loc_type_top_field;
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|     unsigned int chroma_sample_loc_type_bottom_field;
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| 
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|     // Some timing elements are in VAEncSequenceParameterBufferH264.
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|     char fixed_frame_rate_flag;
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| 
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|     char nal_hrd_parameters_present_flag;
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|     char vcl_hrd_parameters_present_flag;
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|     char low_delay_hrd_flag;
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|     char pic_struct_present_flag;
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|     char bitstream_restriction_flag;
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| 
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|     unsigned int cpb_cnt_minus1;
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|     unsigned int bit_rate_scale;
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|     unsigned int cpb_size_scale;
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|     unsigned int bit_rate_value_minus1[32];
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|     unsigned int cpb_size_value_minus1[32];
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|     char cbr_flag[32];
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|     unsigned int initial_cpb_removal_delay_length_minus1;
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|     unsigned int cpb_removal_delay_length_minus1;
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|     unsigned int dpb_output_delay_length_minus1;
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|     unsigned int time_offset_length;
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| 
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|     unsigned int initial_cpb_removal_delay;
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|     unsigned int initial_cpb_removal_delay_offset;
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| 
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|     unsigned int pic_struct;
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| } VAAPIEncodeH264MiscSequenceParams;
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| 
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| // This structure contains all possibly-useful per-slice syntax elements
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| // which are not already contained in the various VAAPI structures.
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| typedef struct VAAPIEncodeH264MiscSliceParams {
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|     unsigned int nal_unit_type;
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|     unsigned int nal_ref_idc;
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| 
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|     unsigned int colour_plane_id;
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|     char field_pic_flag;
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|     char bottom_field_flag;
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| 
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|     unsigned int redundant_pic_cnt;
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| 
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|     char sp_for_switch_flag;
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|     int slice_qs_delta;
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| 
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|     char ref_pic_list_modification_flag_l0;
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|     char ref_pic_list_modification_flag_l1;
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| 
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|     char no_output_of_prior_pics_flag;
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|     char long_term_reference_flag;
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|     char adaptive_ref_pic_marking_mode_flag;
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| } VAAPIEncodeH264MiscSliceParams;
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| 
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| typedef struct VAAPIEncodeH264Slice {
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|     VAAPIEncodeH264MiscSliceParams misc_slice_params;
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| } VAAPIEncodeH264Slice;
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| 
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| typedef struct VAAPIEncodeH264Context {
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|     VAAPIEncodeH264MiscSequenceParams misc_sequence_params;
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| 
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|     int mb_width;
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|     int mb_height;
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| 
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|     int fixed_qp_idr;
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|     int fixed_qp_p;
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|     int fixed_qp_b;
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| 
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|     int next_frame_num;
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|     int64_t idr_pic_count;
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| 
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|     int cpb_delay;
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|     int dpb_delay;
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| 
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|     // Rate control configuration.
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|     int send_timing_sei;
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|     struct {
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|         VAEncMiscParameterBuffer misc;
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|         VAEncMiscParameterRateControl rc;
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|     } rc_params;
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|     struct {
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|         VAEncMiscParameterBuffer misc;
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|         VAEncMiscParameterHRD hrd;
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|     } hrd_params;
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| 
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| #if VA_CHECK_VERSION(0, 36, 0)
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|     // Speed-quality tradeoff setting.
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|     struct {
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|         VAEncMiscParameterBuffer misc;
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|         VAEncMiscParameterBufferQualityLevel quality;
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|     } quality_params;
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| #endif
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| } VAAPIEncodeH264Context;
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| 
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| typedef struct VAAPIEncodeH264Options {
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|     int qp;
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|     int quality;
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|     int low_power;
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| } VAAPIEncodeH264Options;
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| 
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| 
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| #define vseq_var(name)     vseq->name, name
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| #define vseq_field(name)   vseq->seq_fields.bits.name, name
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| #define vvui_field(name)   vseq->vui_fields.bits.name, name
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| #define vpic_var(name)     vpic->name, name
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| #define vpic_field(name)   vpic->pic_fields.bits.name, name
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| #define vslice_var(name)   vslice->name, name
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| #define vslice_field(name) vslice->slice_fields.bits.name, name
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| #define mseq_var(name)     mseq->name, name
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| #define mslice_var(name)   mslice->name, name
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| 
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| static void vaapi_encode_h264_write_nal_header(PutBitContext *pbc,
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|                                                int nal_unit_type, int nal_ref_idc)
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| {
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|     u(1, 0, forbidden_zero_bit);
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|     u(2, nal_ref_idc, nal_ref_idc);
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|     u(5, nal_unit_type, nal_unit_type);
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| }
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| 
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| static void vaapi_encode_h264_write_trailing_rbsp(PutBitContext *pbc)
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| {
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|     u(1, 1, rbsp_stop_one_bit);
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|     while (put_bits_count(pbc) & 7)
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|         u(1, 0, rbsp_alignment_zero_bit);
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| }
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| 
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| static void vaapi_encode_h264_write_vui(PutBitContext *pbc,
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|                                         VAAPIEncodeContext *ctx)
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| {
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|     VAEncSequenceParameterBufferH264  *vseq = ctx->codec_sequence_params;
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|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
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|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
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|     int i;
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| 
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|     u(1, vvui_field(aspect_ratio_info_present_flag));
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|     if (vseq->vui_fields.bits.aspect_ratio_info_present_flag) {
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|         u(8, vseq_var(aspect_ratio_idc));
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|         if (vseq->aspect_ratio_idc == 255) {
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|             u(16, vseq_var(sar_width));
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|             u(16, vseq_var(sar_height));
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|         }
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|     }
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| 
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|     u(1, mseq_var(overscan_info_present_flag));
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|     if (mseq->overscan_info_present_flag)
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|         u(1, mseq_var(overscan_appropriate_flag));
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| 
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|     u(1, mseq_var(video_signal_type_present_flag));
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|     if (mseq->video_signal_type_present_flag) {
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|         u(3, mseq_var(video_format));
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|         u(1, mseq_var(video_full_range_flag));
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|         u(1, mseq_var(colour_description_present_flag));
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|         if (mseq->colour_description_present_flag) {
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|             u(8, mseq_var(colour_primaries));
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|             u(8, mseq_var(transfer_characteristics));
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|             u(8, mseq_var(matrix_coefficients));
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|         }
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|     }
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| 
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|     u(1, mseq_var(chroma_loc_info_present_flag));
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|     if (mseq->chroma_loc_info_present_flag) {
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|         ue(mseq_var(chroma_sample_loc_type_top_field));
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|         ue(mseq_var(chroma_sample_loc_type_bottom_field));
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|     }
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| 
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|     u(1, vvui_field(timing_info_present_flag));
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|     if (vseq->vui_fields.bits.timing_info_present_flag) {
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|         u(32, vseq_var(num_units_in_tick));
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|         u(32, vseq_var(time_scale));
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|         u(1, mseq_var(fixed_frame_rate_flag));
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|     }
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| 
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|     u(1, mseq_var(nal_hrd_parameters_present_flag));
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|     if (mseq->nal_hrd_parameters_present_flag) {
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|         ue(mseq_var(cpb_cnt_minus1));
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|         u(4, mseq_var(bit_rate_scale));
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|         u(4, mseq_var(cpb_size_scale));
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|         for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
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|             ue(mseq_var(bit_rate_value_minus1[i]));
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|             ue(mseq_var(cpb_size_value_minus1[i]));
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|             u(1, mseq_var(cbr_flag[i]));
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|         }
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|         u(5, mseq_var(initial_cpb_removal_delay_length_minus1));
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|         u(5, mseq_var(cpb_removal_delay_length_minus1));
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|         u(5, mseq_var(dpb_output_delay_length_minus1));
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|         u(5, mseq_var(time_offset_length));
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|     }
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|     u(1, mseq_var(vcl_hrd_parameters_present_flag));
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|     if (mseq->vcl_hrd_parameters_present_flag) {
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|         av_assert0(0 && "vcl hrd parameters not supported");
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|     }
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| 
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|     if (mseq->nal_hrd_parameters_present_flag ||
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|         mseq->vcl_hrd_parameters_present_flag)
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|         u(1, mseq_var(low_delay_hrd_flag));
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|     u(1, mseq_var(pic_struct_present_flag));
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| 
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|     u(1, vvui_field(bitstream_restriction_flag));
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|     if (vseq->vui_fields.bits.bitstream_restriction_flag) {
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|         av_assert0(0 && "bitstream restrictions not supported");
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|     }
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| }
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| 
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| static void vaapi_encode_h264_write_sps(PutBitContext *pbc,
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|                                         VAAPIEncodeContext *ctx)
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| {
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|     VAEncSequenceParameterBufferH264  *vseq = ctx->codec_sequence_params;
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|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
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|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
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|     int i;
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| 
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|     vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SPS, 3);
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| 
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|     u(8, mseq_var(profile_idc));
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|     u(1, mseq_var(constraint_set0_flag));
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|     u(1, mseq_var(constraint_set1_flag));
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|     u(1, mseq_var(constraint_set2_flag));
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|     u(1, mseq_var(constraint_set3_flag));
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|     u(1, mseq_var(constraint_set4_flag));
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|     u(1, mseq_var(constraint_set5_flag));
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|     u(2, 0, reserved_zero_2bits);
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| 
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|     u(8, vseq_var(level_idc));
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| 
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|     ue(vseq_var(seq_parameter_set_id));
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| 
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|     if (mseq->profile_idc == 100 || mseq->profile_idc == 110 ||
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|         mseq->profile_idc == 122 || mseq->profile_idc == 244 ||
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|         mseq->profile_idc ==  44 || mseq->profile_idc ==  83 ||
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|         mseq->profile_idc ==  86 || mseq->profile_idc == 118 ||
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|         mseq->profile_idc == 128 || mseq->profile_idc == 138) {
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|         ue(vseq_field(chroma_format_idc));
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| 
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|         if (vseq->seq_fields.bits.chroma_format_idc == 3)
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|             u(1, mseq_var(separate_colour_plane_flag));
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| 
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|         ue(vseq_var(bit_depth_luma_minus8));
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|         ue(vseq_var(bit_depth_chroma_minus8));
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| 
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|         u(1, mseq_var(qpprime_y_zero_transform_bypass_flag));
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| 
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|         u(1, vseq_field(seq_scaling_matrix_present_flag));
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|         if (vseq->seq_fields.bits.seq_scaling_matrix_present_flag) {
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|             av_assert0(0 && "scaling matrices not supported");
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|         }
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|     }
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| 
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|     ue(vseq_field(log2_max_frame_num_minus4));
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|     ue(vseq_field(pic_order_cnt_type));
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| 
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|     if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
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|         ue(vseq_field(log2_max_pic_order_cnt_lsb_minus4));
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|     } else if (vseq->seq_fields.bits.pic_order_cnt_type == 1) {
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|         u(1, mseq_var(delta_pic_order_always_zero_flag));
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|         se(vseq_var(offset_for_non_ref_pic));
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|         se(vseq_var(offset_for_top_to_bottom_field));
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|         ue(vseq_var(num_ref_frames_in_pic_order_cnt_cycle));
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| 
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|         for (i = 0; i < vseq->num_ref_frames_in_pic_order_cnt_cycle; i++)
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|             se(vseq_var(offset_for_ref_frame[i]));
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|     }
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| 
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|     ue(vseq_var(max_num_ref_frames));
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|     u(1, mseq_var(gaps_in_frame_num_allowed_flag));
 | |
| 
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|     ue(vseq->picture_width_in_mbs  - 1, pic_width_in_mbs_minus1);
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|     ue(vseq->picture_height_in_mbs - 1, pic_height_in_mbs_minus1);
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| 
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|     u(1, vseq_field(frame_mbs_only_flag));
 | |
|     if (!vseq->seq_fields.bits.frame_mbs_only_flag)
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|         u(1, vseq_field(mb_adaptive_frame_field_flag));
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| 
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|     u(1, vseq_field(direct_8x8_inference_flag));
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| 
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|     u(1, vseq_var(frame_cropping_flag));
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|     if (vseq->frame_cropping_flag) {
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|         ue(vseq_var(frame_crop_left_offset));
 | |
|         ue(vseq_var(frame_crop_right_offset));
 | |
|         ue(vseq_var(frame_crop_top_offset));
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|         ue(vseq_var(frame_crop_bottom_offset));
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|     }
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| 
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|     u(1, vseq_var(vui_parameters_present_flag));
 | |
|     if (vseq->vui_parameters_present_flag)
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|         vaapi_encode_h264_write_vui(pbc, ctx);
 | |
| 
 | |
|     vaapi_encode_h264_write_trailing_rbsp(pbc);
 | |
| }
 | |
| 
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| static void vaapi_encode_h264_write_pps(PutBitContext *pbc,
 | |
|                                         VAAPIEncodeContext *ctx)
 | |
| {
 | |
|     VAEncPictureParameterBufferH264   *vpic = ctx->codec_picture_params;
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|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
 | |
| 
 | |
|     vaapi_encode_h264_write_nal_header(pbc, H264_NAL_PPS, 3);
 | |
| 
 | |
|     ue(vpic_var(pic_parameter_set_id));
 | |
|     ue(vpic_var(seq_parameter_set_id));
 | |
| 
 | |
|     u(1, vpic_field(entropy_coding_mode_flag));
 | |
|     u(1, mseq_var(bottom_field_pic_order_in_frame_present_flag));
 | |
| 
 | |
|     ue(mseq_var(num_slice_groups_minus1));
 | |
|     if (mseq->num_slice_groups_minus1 > 0) {
 | |
|         ue(mseq_var(slice_group_map_type));
 | |
|         av_assert0(0 && "slice groups not supported");
 | |
|     }
 | |
| 
 | |
|     ue(vpic_var(num_ref_idx_l0_active_minus1));
 | |
|     ue(vpic_var(num_ref_idx_l1_active_minus1));
 | |
| 
 | |
|     u(1, vpic_field(weighted_pred_flag));
 | |
|     u(2, vpic_field(weighted_bipred_idc));
 | |
| 
 | |
|     se(vpic->pic_init_qp - 26, pic_init_qp_minus26);
 | |
|     se(mseq_var(pic_init_qs_minus26));
 | |
|     se(vpic_var(chroma_qp_index_offset));
 | |
| 
 | |
|     u(1, vpic_field(deblocking_filter_control_present_flag));
 | |
|     u(1, vpic_field(constrained_intra_pred_flag));
 | |
|     u(1, vpic_field(redundant_pic_cnt_present_flag));
 | |
|     u(1, vpic_field(transform_8x8_mode_flag));
 | |
| 
 | |
|     u(1, vpic_field(pic_scaling_matrix_present_flag));
 | |
|     if (vpic->pic_fields.bits.pic_scaling_matrix_present_flag) {
 | |
|         av_assert0(0 && "scaling matrices not supported");
 | |
|     }
 | |
| 
 | |
|     se(vpic_var(second_chroma_qp_index_offset));
 | |
| 
 | |
|     vaapi_encode_h264_write_trailing_rbsp(pbc);
 | |
| }
 | |
| 
 | |
| static void vaapi_encode_h264_write_slice_header2(PutBitContext *pbc,
 | |
|                                                   VAAPIEncodeContext *ctx,
 | |
|                                                   VAAPIEncodePicture *pic,
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|                                                   VAAPIEncodeSlice *slice)
 | |
| {
 | |
|     VAEncSequenceParameterBufferH264  *vseq = ctx->codec_sequence_params;
 | |
|     VAEncPictureParameterBufferH264   *vpic = pic->codec_picture_params;
 | |
|     VAEncSliceParameterBufferH264   *vslice = slice->codec_slice_params;
 | |
|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
 | |
|     VAAPIEncodeH264Slice            *pslice = slice->priv_data;
 | |
|     VAAPIEncodeH264MiscSliceParams  *mslice = &pslice->misc_slice_params;
 | |
| 
 | |
|     vaapi_encode_h264_write_nal_header(pbc, mslice->nal_unit_type,
 | |
|                                        mslice->nal_ref_idc);
 | |
| 
 | |
|     ue(vslice->macroblock_address, first_mb_in_slice);
 | |
|     ue(vslice_var(slice_type));
 | |
|     ue(vpic_var(pic_parameter_set_id));
 | |
| 
 | |
|     if (mseq->separate_colour_plane_flag) {
 | |
|         u(2, mslice_var(colour_plane_id));
 | |
|     }
 | |
| 
 | |
|     u(4 + vseq->seq_fields.bits.log2_max_frame_num_minus4,
 | |
|       (vpic->frame_num &
 | |
|        ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1)),
 | |
|       frame_num);
 | |
| 
 | |
|     if (!vseq->seq_fields.bits.frame_mbs_only_flag) {
 | |
|         u(1, mslice_var(field_pic_flag));
 | |
|         if (mslice->field_pic_flag)
 | |
|             u(1, mslice_var(bottom_field_flag));
 | |
|     }
 | |
| 
 | |
|     if (vpic->pic_fields.bits.idr_pic_flag) {
 | |
|         ue(vslice_var(idr_pic_id));
 | |
|     }
 | |
| 
 | |
|     if (vseq->seq_fields.bits.pic_order_cnt_type == 0) {
 | |
|         u(4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4,
 | |
|           vslice_var(pic_order_cnt_lsb));
 | |
|         if (mseq->bottom_field_pic_order_in_frame_present_flag &&
 | |
|             !mslice->field_pic_flag) {
 | |
|             se(vslice_var(delta_pic_order_cnt_bottom));
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (vseq->seq_fields.bits.pic_order_cnt_type == 1 &&
 | |
|         !vseq->seq_fields.bits.delta_pic_order_always_zero_flag) {
 | |
|         se(vslice_var(delta_pic_order_cnt[0]));
 | |
|         if (mseq->bottom_field_pic_order_in_frame_present_flag &&
 | |
|             !mslice->field_pic_flag) {
 | |
|             se(vslice_var(delta_pic_order_cnt[1]));
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (vpic->pic_fields.bits.redundant_pic_cnt_present_flag) {
 | |
|         ue(mslice_var(redundant_pic_cnt));
 | |
|     }
 | |
| 
 | |
|     if (vslice->slice_type == SLICE_TYPE_B) {
 | |
|         u(1, vslice_var(direct_spatial_mv_pred_flag));
 | |
|     }
 | |
| 
 | |
|     if (vslice->slice_type == SLICE_TYPE_P ||
 | |
|         vslice->slice_type == SLICE_TYPE_SP ||
 | |
|         vslice->slice_type == SLICE_TYPE_B) {
 | |
|         u(1, vslice_var(num_ref_idx_active_override_flag));
 | |
|         if (vslice->num_ref_idx_active_override_flag) {
 | |
|             ue(vslice_var(num_ref_idx_l0_active_minus1));
 | |
|             if (vslice->slice_type == SLICE_TYPE_B)
 | |
|                 ue(vslice_var(num_ref_idx_l1_active_minus1));
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (mslice->nal_unit_type == 20 || mslice->nal_unit_type == 21) {
 | |
|         av_assert0(0 && "no MVC support");
 | |
|     } else {
 | |
|         if (vslice->slice_type % 5 != 2 && vslice->slice_type % 5 != 4) {
 | |
|             u(1, mslice_var(ref_pic_list_modification_flag_l0));
 | |
|             if (mslice->ref_pic_list_modification_flag_l0) {
 | |
|                 av_assert0(0 && "ref pic list modification");
 | |
|             }
 | |
|         }
 | |
|         if (vslice->slice_type % 5 == 1) {
 | |
|             u(1, mslice_var(ref_pic_list_modification_flag_l1));
 | |
|             if (mslice->ref_pic_list_modification_flag_l1) {
 | |
|                 av_assert0(0 && "ref pic list modification");
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if ((vpic->pic_fields.bits.weighted_pred_flag &&
 | |
|          (vslice->slice_type == SLICE_TYPE_P ||
 | |
|           vslice->slice_type == SLICE_TYPE_SP)) ||
 | |
|         (vpic->pic_fields.bits.weighted_bipred_idc == 1 &&
 | |
|          vslice->slice_type == SLICE_TYPE_B)) {
 | |
|         av_assert0(0 && "prediction weights not supported");
 | |
|     }
 | |
| 
 | |
|     av_assert0(mslice->nal_ref_idc > 0 ==
 | |
|                vpic->pic_fields.bits.reference_pic_flag);
 | |
|     if (mslice->nal_ref_idc != 0) {
 | |
|         if (vpic->pic_fields.bits.idr_pic_flag) {
 | |
|             u(1, mslice_var(no_output_of_prior_pics_flag));
 | |
|             u(1, mslice_var(long_term_reference_flag));
 | |
|         } else {
 | |
|             u(1, mslice_var(adaptive_ref_pic_marking_mode_flag));
 | |
|             if (mslice->adaptive_ref_pic_marking_mode_flag) {
 | |
|                 av_assert0(0 && "MMCOs not supported");
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (vpic->pic_fields.bits.entropy_coding_mode_flag &&
 | |
|         vslice->slice_type != SLICE_TYPE_I &&
 | |
|         vslice->slice_type != SLICE_TYPE_SI) {
 | |
|         ue(vslice_var(cabac_init_idc));
 | |
|     }
 | |
| 
 | |
|     se(vslice_var(slice_qp_delta));
 | |
|     if (vslice->slice_type == SLICE_TYPE_SP ||
 | |
|         vslice->slice_type == SLICE_TYPE_SI) {
 | |
|         if (vslice->slice_type == SLICE_TYPE_SP)
 | |
|             u(1, mslice_var(sp_for_switch_flag));
 | |
|         se(mslice_var(slice_qs_delta));
 | |
|     }
 | |
| 
 | |
|     if (vpic->pic_fields.bits.deblocking_filter_control_present_flag) {
 | |
|         ue(vslice_var(disable_deblocking_filter_idc));
 | |
|         if (vslice->disable_deblocking_filter_idc != 1) {
 | |
|             se(vslice_var(slice_alpha_c0_offset_div2));
 | |
|             se(vslice_var(slice_beta_offset_div2));
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (mseq->num_slice_groups_minus1 > 0 &&
 | |
|         mseq->slice_group_map_type >= 3 && mseq->slice_group_map_type <= 5) {
 | |
|         av_assert0(0 && "slice groups not supported");
 | |
|     }
 | |
| 
 | |
|     // No alignment - this need not be a byte boundary.
 | |
| }
 | |
| 
 | |
| static void vaapi_encode_h264_write_buffering_period(PutBitContext *pbc,
 | |
|                                                      VAAPIEncodeContext *ctx,
 | |
|                                                      VAAPIEncodePicture *pic)
 | |
| {
 | |
|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
 | |
|     VAEncPictureParameterBufferH264   *vpic = pic->codec_picture_params;
 | |
|     int i;
 | |
| 
 | |
|     ue(vpic_var(seq_parameter_set_id));
 | |
| 
 | |
|     if (mseq->nal_hrd_parameters_present_flag) {
 | |
|         for (i = 0; i <= mseq->cpb_cnt_minus1; i++) {
 | |
|             u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
 | |
|               mseq_var(initial_cpb_removal_delay));
 | |
|             u(mseq->initial_cpb_removal_delay_length_minus1 + 1,
 | |
|               mseq_var(initial_cpb_removal_delay_offset));
 | |
|         }
 | |
|     }
 | |
|     if (mseq->vcl_hrd_parameters_present_flag) {
 | |
|         av_assert0(0 && "vcl hrd parameters not supported");
 | |
|     }
 | |
| }
 | |
| 
 | |
| static void vaapi_encode_h264_write_pic_timing(PutBitContext *pbc,
 | |
|                                                VAAPIEncodeContext *ctx,
 | |
|                                                VAAPIEncodePicture *pic)
 | |
| {
 | |
|     VAEncSequenceParameterBufferH264  *vseq = ctx->codec_sequence_params;
 | |
|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
 | |
|     int i, num_clock_ts;
 | |
| 
 | |
|     if (mseq->nal_hrd_parameters_present_flag ||
 | |
|         mseq->vcl_hrd_parameters_present_flag) {
 | |
|         u(mseq->cpb_removal_delay_length_minus1 + 1,
 | |
|           2 * vseq->num_units_in_tick * priv->cpb_delay,
 | |
|           cpb_removal_delay);
 | |
|         u(mseq->dpb_output_delay_length_minus1 + 1,
 | |
|           2 * vseq->num_units_in_tick * priv->dpb_delay,
 | |
|           dpb_output_delay);
 | |
|     }
 | |
|     if (mseq->pic_struct_present_flag) {
 | |
|         u(4, mseq_var(pic_struct));
 | |
|         num_clock_ts = (mseq->pic_struct <= 2 ? 1 :
 | |
|                         mseq->pic_struct <= 4 ? 2 :
 | |
|                         mseq->pic_struct <= 8 ? 3 : 0);
 | |
|         for (i = 0; i < num_clock_ts; i++) {
 | |
|             u(1, 0, clock_timestamp_flag[i]);
 | |
|             // No full timestamp information.
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| static void vaapi_encode_h264_write_identifier(PutBitContext *pbc,
 | |
|                                                VAAPIEncodeContext *ctx,
 | |
|                                                VAAPIEncodePicture *pic)
 | |
| {
 | |
|     const char *lavc   = LIBAVCODEC_IDENT;
 | |
|     const char *vaapi  = VA_VERSION_S;
 | |
|     const char *driver = vaQueryVendorString(ctx->hwctx->display);
 | |
|     char tmp[256];
 | |
|     int i;
 | |
| 
 | |
|     // Random (version 4) ISO 11578 UUID.
 | |
|     uint8_t uuid[16] = {
 | |
|         0x59, 0x94, 0x8b, 0x28, 0x11, 0xec, 0x45, 0xaf,
 | |
|         0x96, 0x75, 0x19, 0xd4, 0x1f, 0xea, 0xa9, 0x4d,
 | |
|     };
 | |
| 
 | |
|     for (i = 0; i < 16; i++)
 | |
|         u(8, uuid[i], uuid_iso_iec_11578);
 | |
| 
 | |
|     snprintf(tmp, sizeof(tmp), "%s / VAAPI %s / %s", lavc, vaapi, driver);
 | |
|     for (i = 0; i < sizeof(tmp) && tmp[i]; i++)
 | |
|         u(8, tmp[i], user_data_payload_byte);
 | |
| }
 | |
| 
 | |
| static void vaapi_encode_h264_write_sei(PutBitContext *pbc,
 | |
|                                         VAAPIEncodeContext *ctx,
 | |
|                                         VAAPIEncodePicture *pic)
 | |
| {
 | |
|     VAAPIEncodeH264Context *priv = ctx->priv_data;
 | |
|     PutBitContext payload_bits;
 | |
|     char payload[256];
 | |
|     int payload_type, payload_size, i;
 | |
|     void (*write_payload)(PutBitContext *pbc,
 | |
|                           VAAPIEncodeContext *ctx,
 | |
|                           VAAPIEncodePicture *pic) = NULL;
 | |
| 
 | |
|     vaapi_encode_h264_write_nal_header(pbc, H264_NAL_SEI, 0);
 | |
| 
 | |
|     for (payload_type = 0; payload_type < 64; payload_type++) {
 | |
|         switch (payload_type) {
 | |
|         case SEI_TYPE_BUFFERING_PERIOD:
 | |
|             if (!priv->send_timing_sei ||
 | |
|                 pic->type != PICTURE_TYPE_IDR)
 | |
|                 continue;
 | |
|             write_payload = &vaapi_encode_h264_write_buffering_period;
 | |
|             break;
 | |
|         case SEI_TYPE_PIC_TIMING:
 | |
|             if (!priv->send_timing_sei)
 | |
|                 continue;
 | |
|             write_payload = &vaapi_encode_h264_write_pic_timing;
 | |
|             break;
 | |
|         case SEI_TYPE_USER_DATA_UNREGISTERED:
 | |
|             if (pic->encode_order != 0)
 | |
|                 continue;
 | |
|             write_payload = &vaapi_encode_h264_write_identifier;
 | |
|             break;
 | |
|         default:
 | |
|             continue;
 | |
|         }
 | |
| 
 | |
|         init_put_bits(&payload_bits, payload, sizeof(payload));
 | |
|         write_payload(&payload_bits, ctx, pic);
 | |
|         if (put_bits_count(&payload_bits) & 7) {
 | |
|             write_u(&payload_bits, 1, 1, bit_equal_to_one);
 | |
|             while (put_bits_count(&payload_bits) & 7)
 | |
|                 write_u(&payload_bits, 1, 0, bit_equal_to_zero);
 | |
|         }
 | |
|         payload_size = put_bits_count(&payload_bits) / 8;
 | |
|         flush_put_bits(&payload_bits);
 | |
| 
 | |
|         u(8, payload_type, last_payload_type_byte);
 | |
|         u(8, payload_size, last_payload_size_byte);
 | |
|         for (i = 0; i < payload_size; i++)
 | |
|             u(8, payload[i] & 0xff, sei_payload);
 | |
|     }
 | |
| 
 | |
|     vaapi_encode_h264_write_trailing_rbsp(pbc);
 | |
| }
 | |
| 
 | |
| static int vaapi_encode_h264_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_h264_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_h264_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_h264_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_h264_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_h264_write_extra_header(AVCodecContext *avctx,
 | |
|                                                 VAAPIEncodePicture *pic,
 | |
|                                                 int index, int *type,
 | |
|                                                 char *data, size_t *data_len)
 | |
| {
 | |
|     VAAPIEncodeContext *ctx = avctx->priv_data;
 | |
|     PutBitContext pbc;
 | |
|     char tmp[256];
 | |
|     size_t header_len;
 | |
| 
 | |
|     if (index == 0 && ctx->va_rc_mode == VA_RC_CBR) {
 | |
|         *type = VAEncPackedHeaderH264_SEI;
 | |
| 
 | |
|         init_put_bits(&pbc, tmp, sizeof(tmp));
 | |
|         vaapi_encode_h264_write_sei(&pbc, ctx, pic);
 | |
|         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);
 | |
| 
 | |
|     } else {
 | |
|         return AVERROR_EOF;
 | |
|     }
 | |
| }
 | |
| 
 | |
| static int vaapi_encode_h264_init_sequence_params(AVCodecContext *avctx)
 | |
| {
 | |
|     VAAPIEncodeContext                 *ctx = avctx->priv_data;
 | |
|     VAEncSequenceParameterBufferH264  *vseq = ctx->codec_sequence_params;
 | |
|     VAEncPictureParameterBufferH264   *vpic = ctx->codec_picture_params;
 | |
|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params;
 | |
|     int i;
 | |
| 
 | |
|     {
 | |
|         vseq->seq_parameter_set_id = 0;
 | |
| 
 | |
|         vseq->level_idc = avctx->level;
 | |
| 
 | |
|         vseq->max_num_ref_frames = 2;
 | |
| 
 | |
|         vseq->picture_width_in_mbs  = priv->mb_width;
 | |
|         vseq->picture_height_in_mbs = priv->mb_height;
 | |
| 
 | |
|         vseq->seq_fields.bits.chroma_format_idc = 1;
 | |
|         vseq->seq_fields.bits.frame_mbs_only_flag = 1;
 | |
|         vseq->seq_fields.bits.direct_8x8_inference_flag = 1;
 | |
|         vseq->seq_fields.bits.log2_max_frame_num_minus4 = 4;
 | |
|         vseq->seq_fields.bits.pic_order_cnt_type = 0;
 | |
| 
 | |
|         if (ctx->input_width  != ctx->aligned_width ||
 | |
|             ctx->input_height != ctx->aligned_height) {
 | |
|             vseq->frame_cropping_flag = 1;
 | |
| 
 | |
|             vseq->frame_crop_left_offset   = 0;
 | |
|             vseq->frame_crop_right_offset  =
 | |
|                 (ctx->aligned_width - ctx->input_width) / 2;
 | |
|             vseq->frame_crop_top_offset    = 0;
 | |
|             vseq->frame_crop_bottom_offset =
 | |
|                 (ctx->aligned_height - ctx->input_height) / 2;
 | |
|         } else {
 | |
|             vseq->frame_cropping_flag = 0;
 | |
|         }
 | |
| 
 | |
|         vseq->vui_parameters_present_flag = 1;
 | |
|         if (avctx->sample_aspect_ratio.num != 0) {
 | |
|             vseq->vui_fields.bits.aspect_ratio_info_present_flag = 1;
 | |
|             // There is a large enum of these which we could support
 | |
|             // individually rather than using the generic X/Y form?
 | |
|             if (avctx->sample_aspect_ratio.num ==
 | |
|                 avctx->sample_aspect_ratio.den) {
 | |
|                 vseq->aspect_ratio_idc = 1;
 | |
|             } else {
 | |
|                 vseq->aspect_ratio_idc = 255; // Extended SAR.
 | |
|                 vseq->sar_width  = avctx->sample_aspect_ratio.num;
 | |
|                 vseq->sar_height = avctx->sample_aspect_ratio.den;
 | |
|             }
 | |
|         }
 | |
|         if (avctx->color_primaries != AVCOL_PRI_UNSPECIFIED ||
 | |
|             avctx->color_trc       != AVCOL_TRC_UNSPECIFIED ||
 | |
|             avctx->colorspace      != AVCOL_SPC_UNSPECIFIED) {
 | |
|             mseq->video_signal_type_present_flag = 1;
 | |
|             mseq->video_format             = 5; // Unspecified.
 | |
|             mseq->video_full_range_flag    = 0;
 | |
|             mseq->colour_description_present_flag = 1;
 | |
|             // These enums are derived from the standard and hence
 | |
|             // we can just use the values directly.
 | |
|             mseq->colour_primaries         = avctx->color_primaries;
 | |
|             mseq->transfer_characteristics = avctx->color_trc;
 | |
|             mseq->matrix_coefficients      = avctx->colorspace;
 | |
|         }
 | |
| 
 | |
|         vseq->bits_per_second = avctx->bit_rate;
 | |
| 
 | |
|         vseq->vui_fields.bits.timing_info_present_flag = 1;
 | |
|         if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
 | |
|             vseq->num_units_in_tick = avctx->framerate.num;
 | |
|             vseq->time_scale        = 2 * avctx->framerate.den;
 | |
|             mseq->fixed_frame_rate_flag = 1;
 | |
|         } else {
 | |
|             vseq->num_units_in_tick = avctx->time_base.num;
 | |
|             vseq->time_scale        = 2 * avctx->time_base.den;
 | |
|             mseq->fixed_frame_rate_flag = 0;
 | |
|         }
 | |
| 
 | |
|         if (ctx->va_rc_mode == VA_RC_CBR) {
 | |
|             priv->send_timing_sei = 1;
 | |
|             mseq->nal_hrd_parameters_present_flag = 1;
 | |
| 
 | |
|             mseq->cpb_cnt_minus1 = 0;
 | |
| 
 | |
|             // Try to scale these to a sensible range so that the
 | |
|             // golomb encode of the value is not overlong.
 | |
|             mseq->bit_rate_scale =
 | |
|                 av_clip_uintp2(av_log2(avctx->bit_rate) - 15, 4);
 | |
|             mseq->bit_rate_value_minus1[0] =
 | |
|                 (avctx->bit_rate >> mseq->bit_rate_scale) - 1;
 | |
| 
 | |
|             mseq->cpb_size_scale =
 | |
|                 av_clip_uintp2(av_log2(priv->hrd_params.hrd.buffer_size) - 15, 4);
 | |
|             mseq->cpb_size_value_minus1[0] =
 | |
|                 (priv->hrd_params.hrd.buffer_size >> mseq->cpb_size_scale) - 1;
 | |
| 
 | |
|             // CBR mode isn't actually available here, despite naming.
 | |
|             mseq->cbr_flag[0] = 0;
 | |
| 
 | |
|             mseq->initial_cpb_removal_delay_length_minus1 = 23;
 | |
|             mseq->cpb_removal_delay_length_minus1         = 23;
 | |
|             mseq->dpb_output_delay_length_minus1          = 7;
 | |
|             mseq->time_offset_length = 0;
 | |
| 
 | |
|             // This calculation can easily overflow 32 bits.
 | |
|             mseq->initial_cpb_removal_delay = 90000 *
 | |
|                 (uint64_t)priv->hrd_params.hrd.initial_buffer_fullness /
 | |
|                 priv->hrd_params.hrd.buffer_size;
 | |
| 
 | |
|             mseq->initial_cpb_removal_delay_offset = 0;
 | |
|         } else {
 | |
|             priv->send_timing_sei = 0;
 | |
|             mseq->nal_hrd_parameters_present_flag = 0;
 | |
|         }
 | |
| 
 | |
|         vseq->intra_period     = ctx->p_per_i * (ctx->b_per_p + 1);
 | |
|         vseq->intra_idr_period = vseq->intra_period;
 | |
|         vseq->ip_period        = ctx->b_per_p + 1;
 | |
|     }
 | |
| 
 | |
|     {
 | |
|         vpic->CurrPic.picture_id = VA_INVALID_ID;
 | |
|         vpic->CurrPic.flags      = VA_PICTURE_H264_INVALID;
 | |
| 
 | |
|         for (i = 0; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
 | |
|             vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
 | |
|             vpic->ReferenceFrames[i].flags      = VA_PICTURE_H264_INVALID;
 | |
|         }
 | |
| 
 | |
|         vpic->coded_buf = VA_INVALID_ID;
 | |
| 
 | |
|         vpic->pic_parameter_set_id = 0;
 | |
|         vpic->seq_parameter_set_id = 0;
 | |
| 
 | |
|         vpic->num_ref_idx_l0_active_minus1 = 0;
 | |
|         vpic->num_ref_idx_l1_active_minus1 = 0;
 | |
| 
 | |
|         vpic->pic_fields.bits.entropy_coding_mode_flag =
 | |
|             ((avctx->profile & 0xff) != 66);
 | |
|         vpic->pic_fields.bits.weighted_pred_flag = 0;
 | |
|         vpic->pic_fields.bits.weighted_bipred_idc = 0;
 | |
|         vpic->pic_fields.bits.transform_8x8_mode_flag =
 | |
|             ((avctx->profile & 0xff) >= 100);
 | |
| 
 | |
|         vpic->pic_init_qp = priv->fixed_qp_idr;
 | |
|     }
 | |
| 
 | |
|     {
 | |
|         mseq->profile_idc = avctx->profile & 0xff;
 | |
| 
 | |
|         if (avctx->profile & FF_PROFILE_H264_CONSTRAINED)
 | |
|             mseq->constraint_set1_flag = 1;
 | |
|         if (avctx->profile & FF_PROFILE_H264_INTRA)
 | |
|             mseq->constraint_set3_flag = 1;
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int vaapi_encode_h264_init_picture_params(AVCodecContext *avctx,
 | |
|                                                  VAAPIEncodePicture *pic)
 | |
| {
 | |
|     VAAPIEncodeContext                *ctx = avctx->priv_data;
 | |
|     VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params;
 | |
|     VAEncPictureParameterBufferH264  *vpic = pic->codec_picture_params;
 | |
|     VAAPIEncodeH264Context           *priv = ctx->priv_data;
 | |
|     int i;
 | |
| 
 | |
|     if (pic->type == PICTURE_TYPE_IDR) {
 | |
|         av_assert0(pic->display_order == pic->encode_order);
 | |
|         vpic->frame_num = 0;
 | |
|         priv->next_frame_num = 1;
 | |
|         priv->cpb_delay = 0;
 | |
|     } else {
 | |
|         vpic->frame_num = priv->next_frame_num;
 | |
|         if (pic->type != PICTURE_TYPE_B) {
 | |
|             // nal_ref_idc != 0
 | |
|             ++priv->next_frame_num;
 | |
|         }
 | |
|         ++priv->cpb_delay;
 | |
|     }
 | |
|     priv->dpb_delay = pic->display_order - pic->encode_order + 1;
 | |
| 
 | |
|     vpic->frame_num = vpic->frame_num &
 | |
|         ((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1);
 | |
| 
 | |
|     vpic->CurrPic.picture_id          = pic->recon_surface;
 | |
|     vpic->CurrPic.frame_idx           = vpic->frame_num;
 | |
|     vpic->CurrPic.flags               = 0;
 | |
|     vpic->CurrPic.TopFieldOrderCnt    = pic->display_order;
 | |
|     vpic->CurrPic.BottomFieldOrderCnt = pic->display_order;
 | |
| 
 | |
|     for (i = 0; i < pic->nb_refs; i++) {
 | |
|         VAAPIEncodePicture *ref = pic->refs[i];
 | |
|         av_assert0(ref && ref->encode_order < pic->encode_order);
 | |
|         vpic->ReferenceFrames[i].picture_id = ref->recon_surface;
 | |
|         vpic->ReferenceFrames[i].frame_idx  = ref->encode_order;
 | |
|         vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_SHORT_TERM_REFERENCE;
 | |
|         vpic->ReferenceFrames[i].TopFieldOrderCnt    = ref->display_order;
 | |
|         vpic->ReferenceFrames[i].BottomFieldOrderCnt = ref->display_order;
 | |
|     }
 | |
|     for (; i < FF_ARRAY_ELEMS(vpic->ReferenceFrames); i++) {
 | |
|         vpic->ReferenceFrames[i].picture_id = VA_INVALID_ID;
 | |
|         vpic->ReferenceFrames[i].flags = VA_PICTURE_H264_INVALID;
 | |
|     }
 | |
| 
 | |
|     vpic->coded_buf = pic->output_buffer;
 | |
| 
 | |
|     vpic->pic_fields.bits.idr_pic_flag = (pic->type == PICTURE_TYPE_IDR);
 | |
|     vpic->pic_fields.bits.reference_pic_flag = (pic->type != PICTURE_TYPE_B);
 | |
| 
 | |
|     pic->nb_slices = 1;
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int vaapi_encode_h264_init_slice_params(AVCodecContext *avctx,
 | |
|                                                VAAPIEncodePicture *pic,
 | |
|                                                VAAPIEncodeSlice *slice)
 | |
| {
 | |
|     VAAPIEncodeContext                 *ctx = avctx->priv_data;
 | |
|     VAEncSequenceParameterBufferH264  *vseq = ctx->codec_sequence_params;
 | |
|     VAEncPictureParameterBufferH264   *vpic = pic->codec_picture_params;
 | |
|     VAEncSliceParameterBufferH264   *vslice = slice->codec_slice_params;
 | |
|     VAAPIEncodeH264Context            *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264Slice            *pslice;
 | |
|     VAAPIEncodeH264MiscSliceParams  *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;
 | |
| 
 | |
|     if (pic->type == PICTURE_TYPE_IDR)
 | |
|         mslice->nal_unit_type = H264_NAL_IDR_SLICE;
 | |
|     else
 | |
|         mslice->nal_unit_type = H264_NAL_SLICE;
 | |
| 
 | |
|     switch (pic->type) {
 | |
|     case PICTURE_TYPE_IDR:
 | |
|         vslice->slice_type  = SLICE_TYPE_I;
 | |
|         mslice->nal_ref_idc = 3;
 | |
|         break;
 | |
|     case PICTURE_TYPE_I:
 | |
|         vslice->slice_type  = SLICE_TYPE_I;
 | |
|         mslice->nal_ref_idc = 2;
 | |
|         break;
 | |
|     case PICTURE_TYPE_P:
 | |
|         vslice->slice_type  = SLICE_TYPE_P;
 | |
|         mslice->nal_ref_idc = 1;
 | |
|         break;
 | |
|     case PICTURE_TYPE_B:
 | |
|         vslice->slice_type  = SLICE_TYPE_B;
 | |
|         mslice->nal_ref_idc = 0;
 | |
|         break;
 | |
|     default:
 | |
|         av_assert0(0 && "invalid picture type");
 | |
|     }
 | |
| 
 | |
|     // Only one slice per frame.
 | |
|     vslice->macroblock_address = 0;
 | |
|     vslice->num_macroblocks = priv->mb_width * priv->mb_height;
 | |
| 
 | |
|     vslice->macroblock_info = VA_INVALID_ID;
 | |
| 
 | |
|     vslice->pic_parameter_set_id = vpic->pic_parameter_set_id;
 | |
|     vslice->idr_pic_id = priv->idr_pic_count++;
 | |
| 
 | |
|     vslice->pic_order_cnt_lsb = pic->display_order &
 | |
|         ((1 << (4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4)) - 1);
 | |
| 
 | |
|     for (i = 0; i < FF_ARRAY_ELEMS(vslice->RefPicList0); i++) {
 | |
|         vslice->RefPicList0[i].picture_id = VA_INVALID_ID;
 | |
|         vslice->RefPicList0[i].flags      = VA_PICTURE_H264_INVALID;
 | |
|         vslice->RefPicList1[i].picture_id = VA_INVALID_ID;
 | |
|         vslice->RefPicList1[i].flags      = VA_PICTURE_H264_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->RefPicList0[0] = vpic->ReferenceFrames[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->RefPicList1[0] = vpic->ReferenceFrames[1];
 | |
|     }
 | |
| 
 | |
|     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->direct_spatial_mv_pred_flag = 1;
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static av_cold int vaapi_encode_h264_init_constant_bitrate(AVCodecContext *avctx)
 | |
| {
 | |
|     VAAPIEncodeContext      *ctx = avctx->priv_data;
 | |
|     VAAPIEncodeH264Context *priv = ctx->priv_data;
 | |
|     int hrd_buffer_size;
 | |
|     int hrd_initial_buffer_fullness;
 | |
| 
 | |
|     if (avctx->bit_rate > INT32_MAX) {
 | |
|         av_log(avctx, AV_LOG_ERROR, "Target bitrate of 2^31 bps or "
 | |
|                "higher is not supported.\n");
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
| 
 | |
|     if (avctx->rc_buffer_size)
 | |
|         hrd_buffer_size = avctx->rc_buffer_size;
 | |
|     else
 | |
|         hrd_buffer_size = avctx->bit_rate;
 | |
|     if (avctx->rc_initial_buffer_occupancy)
 | |
|         hrd_initial_buffer_fullness = avctx->rc_initial_buffer_occupancy;
 | |
|     else
 | |
|         hrd_initial_buffer_fullness = hrd_buffer_size * 3 / 4;
 | |
| 
 | |
|     priv->rc_params.misc.type = VAEncMiscParameterTypeRateControl;
 | |
|     priv->rc_params.rc = (VAEncMiscParameterRateControl) {
 | |
|         .bits_per_second   = avctx->bit_rate,
 | |
|         .target_percentage = 66,
 | |
|         .window_size       = 1000,
 | |
|         .initial_qp        = (avctx->qmax >= 0 ? avctx->qmax : 40),
 | |
|         .min_qp            = (avctx->qmin >= 0 ? avctx->qmin : 18),
 | |
|         .basic_unit_size   = 0,
 | |
|     };
 | |
|     ctx->global_params[ctx->nb_global_params] =
 | |
|         &priv->rc_params.misc;
 | |
|     ctx->global_params_size[ctx->nb_global_params++] =
 | |
|         sizeof(priv->rc_params);
 | |
| 
 | |
|     priv->hrd_params.misc.type = VAEncMiscParameterTypeHRD;
 | |
|     priv->hrd_params.hrd = (VAEncMiscParameterHRD) {
 | |
|         .initial_buffer_fullness = hrd_initial_buffer_fullness,
 | |
|         .buffer_size             = hrd_buffer_size,
 | |
|     };
 | |
|     ctx->global_params[ctx->nb_global_params] =
 | |
|         &priv->hrd_params.misc;
 | |
|     ctx->global_params_size[ctx->nb_global_params++] =
 | |
|         sizeof(priv->hrd_params);
 | |
| 
 | |
|     // These still need to be  set for pic_init_qp/slice_qp_delta.
 | |
|     priv->fixed_qp_idr = 26;
 | |
|     priv->fixed_qp_p   = 26;
 | |
|     priv->fixed_qp_b   = 26;
 | |
| 
 | |
|     av_log(avctx, AV_LOG_DEBUG, "Using constant-bitrate = %"PRId64" bps.\n",
 | |
|            avctx->bit_rate);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static av_cold int vaapi_encode_h264_init_fixed_qp(AVCodecContext *avctx)
 | |
| {
 | |
|     VAAPIEncodeContext      *ctx = avctx->priv_data;
 | |
|     VAAPIEncodeH264Context *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264Options  *opt = ctx->codec_options;
 | |
| 
 | |
|     priv->fixed_qp_p = opt->qp;
 | |
|     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, "Using fixed QP = "
 | |
|            "%d / %d / %d for IDR- / P- / B-frames.\n",
 | |
|            priv->fixed_qp_idr, priv->fixed_qp_p, priv->fixed_qp_b);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static av_cold int vaapi_encode_h264_init_internal(AVCodecContext *avctx)
 | |
| {
 | |
|     static const VAConfigAttrib default_config_attributes[] = {
 | |
|         { .type  = VAConfigAttribRTFormat,
 | |
|           .value = VA_RT_FORMAT_YUV420 },
 | |
|         { .type  = VAConfigAttribEncPackedHeaders,
 | |
|           .value = (VA_ENC_PACKED_HEADER_SEQUENCE |
 | |
|                     VA_ENC_PACKED_HEADER_SLICE) },
 | |
|     };
 | |
| 
 | |
|     VAAPIEncodeContext      *ctx = avctx->priv_data;
 | |
|     VAAPIEncodeH264Context *priv = ctx->priv_data;
 | |
|     VAAPIEncodeH264Options  *opt = ctx->codec_options;
 | |
|     int i, err;
 | |
| 
 | |
|     switch (avctx->profile) {
 | |
|     case FF_PROFILE_H264_CONSTRAINED_BASELINE:
 | |
|         ctx->va_profile = VAProfileH264ConstrainedBaseline;
 | |
|         break;
 | |
|     case FF_PROFILE_H264_BASELINE:
 | |
|         ctx->va_profile = VAProfileH264Baseline;
 | |
|         break;
 | |
|     case FF_PROFILE_H264_MAIN:
 | |
|         ctx->va_profile = VAProfileH264Main;
 | |
|         break;
 | |
|     case FF_PROFILE_H264_EXTENDED:
 | |
|         av_log(avctx, AV_LOG_ERROR, "H.264 extended profile "
 | |
|                "is not supported.\n");
 | |
|         return AVERROR_PATCHWELCOME;
 | |
|     case FF_PROFILE_UNKNOWN:
 | |
|     case FF_PROFILE_H264_HIGH:
 | |
|         ctx->va_profile = VAProfileH264High;
 | |
|         break;
 | |
|     case FF_PROFILE_H264_HIGH_10:
 | |
|     case FF_PROFILE_H264_HIGH_10_INTRA:
 | |
|         av_log(avctx, AV_LOG_ERROR, "H.264 10-bit profiles "
 | |
|                "are not supported.\n");
 | |
|         return AVERROR_PATCHWELCOME;
 | |
|     case FF_PROFILE_H264_HIGH_422:
 | |
|     case FF_PROFILE_H264_HIGH_422_INTRA:
 | |
|     case FF_PROFILE_H264_HIGH_444:
 | |
|     case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
 | |
|     case FF_PROFILE_H264_HIGH_444_INTRA:
 | |
|     case FF_PROFILE_H264_CAVLC_444:
 | |
|         av_log(avctx, AV_LOG_ERROR, "H.264 non-4:2:0 profiles "
 | |
|                "are not supported.\n");
 | |
|         return AVERROR_PATCHWELCOME;
 | |
|     default:
 | |
|         av_log(avctx, AV_LOG_ERROR, "Unknown H.264 profile %d.\n",
 | |
|                avctx->profile);
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
|     if (opt->low_power) {
 | |
| #if VA_CHECK_VERSION(0, 39, 1)
 | |
|         ctx->va_entrypoint = VAEntrypointEncSliceLP;
 | |
| #else
 | |
|         av_log(avctx, AV_LOG_ERROR, "Low-power encoding is not "
 | |
|                "supported with this VAAPI version.\n");
 | |
|         return AVERROR(EINVAL);
 | |
| #endif
 | |
|     } else {
 | |
|         ctx->va_entrypoint = VAEntrypointEncSlice;
 | |
|     }
 | |
| 
 | |
|     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->mb_width      = ctx->aligned_width  / 16;
 | |
|     priv->mb_height     = ctx->aligned_height / 16;
 | |
| 
 | |
|     for (i = 0; i < FF_ARRAY_ELEMS(default_config_attributes); i++) {
 | |
|         ctx->config_attributes[ctx->nb_config_attributes++] =
 | |
|             default_config_attributes[i];
 | |
|     }
 | |
| 
 | |
|     if (avctx->bit_rate > 0) {
 | |
|         ctx->va_rc_mode = VA_RC_CBR;
 | |
|         err = vaapi_encode_h264_init_constant_bitrate(avctx);
 | |
|     } else {
 | |
|         ctx->va_rc_mode = VA_RC_CQP;
 | |
|         err = vaapi_encode_h264_init_fixed_qp(avctx);
 | |
|     }
 | |
|     if (err < 0)
 | |
|         return err;
 | |
| 
 | |
|     ctx->config_attributes[ctx->nb_config_attributes++] = (VAConfigAttrib) {
 | |
|         .type  = VAConfigAttribRateControl,
 | |
|         .value = ctx->va_rc_mode,
 | |
|     };
 | |
| 
 | |
|     if (opt->quality > 0) {
 | |
| #if VA_CHECK_VERSION(0, 36, 0)
 | |
|         priv->quality_params.misc.type =
 | |
|             VAEncMiscParameterTypeQualityLevel;
 | |
|         priv->quality_params.quality.quality_level = opt->quality;
 | |
| 
 | |
|         ctx->global_params[ctx->nb_global_params] =
 | |
|             &priv->quality_params.misc;
 | |
|         ctx->global_params_size[ctx->nb_global_params++] =
 | |
|             sizeof(priv->quality_params);
 | |
| #else
 | |
|         av_log(avctx, AV_LOG_WARNING, "The encode quality option is not "
 | |
|                "supported with this VAAPI version.\n");
 | |
| #endif
 | |
|     }
 | |
| 
 | |
|     ctx->nb_recon_frames = 20;
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static VAAPIEncodeType vaapi_encode_type_h264 = {
 | |
|     .priv_data_size        = sizeof(VAAPIEncodeH264Context),
 | |
| 
 | |
|     .init                  = &vaapi_encode_h264_init_internal,
 | |
| 
 | |
|     .sequence_params_size  = sizeof(VAEncSequenceParameterBufferH264),
 | |
|     .init_sequence_params  = &vaapi_encode_h264_init_sequence_params,
 | |
| 
 | |
|     .picture_params_size   = sizeof(VAEncPictureParameterBufferH264),
 | |
|     .init_picture_params   = &vaapi_encode_h264_init_picture_params,
 | |
| 
 | |
|     .slice_params_size     = sizeof(VAEncSliceParameterBufferH264),
 | |
|     .init_slice_params     = &vaapi_encode_h264_init_slice_params,
 | |
| 
 | |
|     .sequence_header_type  = VAEncPackedHeaderSequence,
 | |
|     .write_sequence_header = &vaapi_encode_h264_write_sequence_header,
 | |
| 
 | |
|     .slice_header_type     = VAEncPackedHeaderH264_Slice,
 | |
|     .write_slice_header    = &vaapi_encode_h264_write_slice_header,
 | |
| 
 | |
|     .write_extra_header    = &vaapi_encode_h264_write_extra_header,
 | |
| };
 | |
| 
 | |
| static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx)
 | |
| {
 | |
|     return ff_vaapi_encode_init(avctx, &vaapi_encode_type_h264);
 | |
| }
 | |
| 
 | |
| #define OFFSET(x) (offsetof(VAAPIEncodeContext, codec_options_data) + \
 | |
|                    offsetof(VAAPIEncodeH264Options, x))
 | |
| #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
 | |
| static const AVOption vaapi_encode_h264_options[] = {
 | |
|     { "qp", "Constant QP (for P-frames; scaled by qfactor/qoffset for I/B)",
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|       OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS },
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|     { "quality", "Set encode quality (trades off against speed, higher is faster)",
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|       OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS },
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|     { "low_power", "Use low-power encoding mode (experimental: only supported "
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|       "on some platforms, does not support all features)",
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|       OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS },
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|     { NULL },
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| };
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| 
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| static const AVCodecDefault vaapi_encode_h264_defaults[] = {
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|     { "profile",        "100" },
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|     { "level",          "51"  },
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|     { "b",              "0"   },
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|     { "bf",             "2"   },
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|     { "g",              "120" },
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|     { "i_qfactor",      "1"   },
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|     { "i_qoffset",      "0"   },
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|     { "b_qfactor",      "6/5" },
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|     { "b_qoffset",      "0"   },
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|     { NULL },
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| };
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| 
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| static const AVClass vaapi_encode_h264_class = {
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|     .class_name = "h264_vaapi",
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|     .item_name  = av_default_item_name,
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|     .option     = vaapi_encode_h264_options,
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|     .version    = LIBAVUTIL_VERSION_INT,
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| };
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| 
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| AVCodec ff_h264_vaapi_encoder = {
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|     .name           = "h264_vaapi",
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|     .long_name      = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"),
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|     .type           = AVMEDIA_TYPE_VIDEO,
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|     .id             = AV_CODEC_ID_H264,
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|     .priv_data_size = (sizeof(VAAPIEncodeContext) +
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|                        sizeof(VAAPIEncodeH264Options)),
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|     .init           = &vaapi_encode_h264_init,
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|     .encode2        = &ff_vaapi_encode2,
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|     .close          = &ff_vaapi_encode_close,
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|     .priv_class     = &vaapi_encode_h264_class,
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|     .capabilities   = AV_CODEC_CAP_DELAY,
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|     .defaults       = vaapi_encode_h264_defaults,
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|     .pix_fmts = (const enum AVPixelFormat[]) {
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|         AV_PIX_FMT_VAAPI,
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|         AV_PIX_FMT_NONE,
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|     },
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| };
 |