mirror of https://github.com/FFmpeg/FFmpeg.git
* commit '2c62fcdf5d617791a653d7957d449f75569eede0': lavc: VAAPI H.264 encoder Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>pull/212/head
commit
b975aeec02
8 changed files with 967 additions and 1 deletions
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/*
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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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#include <va/va.h> |
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#include <va/va_enc_h264.h> |
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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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#include "avcodec.h" |
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#include "h264.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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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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// 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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char separate_colour_plane_flag; |
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char qpprime_y_zero_transform_bypass_flag; |
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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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unsigned int num_slice_groups_minus1; |
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unsigned int slice_group_map_type; |
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int pic_init_qs_minus26; |
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char vui_parameters_present_flag; |
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} VAAPIEncodeH264MiscSequenceParams; |
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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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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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unsigned int redundant_pic_cnt; |
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char sp_for_switch_flag; |
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int slice_qs_delta; |
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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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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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typedef struct VAAPIEncodeH264Slice { |
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VAAPIEncodeH264MiscSliceParams misc_slice_params; |
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} VAAPIEncodeH264Slice; |
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typedef struct VAAPIEncodeH264Context { |
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VAAPIEncodeH264MiscSequenceParams misc_sequence_params; |
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int mb_width; |
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int mb_height; |
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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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int64_t idr_pic_count; |
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int64_t last_idr_frame; |
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// RefPicList management.
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} VAAPIEncodeH264Context; |
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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 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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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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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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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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vaapi_encode_h264_write_nal_header(pbc, NAL_SPS, 3); |
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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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u(8, vseq_var(level_idc)); |
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ue(vseq_var(seq_parameter_set_id)); |
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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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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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ue(vseq_var(bit_depth_luma_minus8)); |
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ue(vseq_var(bit_depth_chroma_minus8)); |
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u(1, mseq_var(qpprime_y_zero_transform_bypass_flag)); |
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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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ue(vseq_field(log2_max_frame_num_minus4)); |
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ue(vseq_field(pic_order_cnt_type)); |
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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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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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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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u(1, vseq_field(frame_mbs_only_flag)); |
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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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u(1, vseq_field(direct_8x8_inference_flag)); |
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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)); |
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ue(vseq_var(frame_crop_right_offset)); |
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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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u(1, mseq_var(vui_parameters_present_flag)); |
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vaapi_encode_h264_write_trailing_rbsp(pbc); |
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} |
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static void vaapi_encode_h264_write_pps(PutBitContext *pbc, |
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VAAPIEncodeContext *ctx) |
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{ |
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VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params; |
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VAAPIEncodeH264Context *priv = ctx->priv_data; |
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VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params; |
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vaapi_encode_h264_write_nal_header(pbc, NAL_PPS, 3); |
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ue(vpic_var(pic_parameter_set_id)); |
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ue(vpic_var(seq_parameter_set_id)); |
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u(1, vpic_field(entropy_coding_mode_flag)); |
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u(1, mseq_var(bottom_field_pic_order_in_frame_present_flag)); |
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ue(mseq_var(num_slice_groups_minus1)); |
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if (mseq->num_slice_groups_minus1 > 0) { |
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ue(mseq_var(slice_group_map_type)); |
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av_assert0(0 && "slice groups not supported"); |
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} |
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ue(vpic_var(num_ref_idx_l0_active_minus1)); |
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ue(vpic_var(num_ref_idx_l1_active_minus1)); |
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u(1, vpic_field(weighted_pred_flag)); |
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u(2, vpic_field(weighted_bipred_idc)); |
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se(vpic->pic_init_qp - 26, pic_init_qp_minus26); |
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se(mseq_var(pic_init_qs_minus26)); |
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se(vpic_var(chroma_qp_index_offset)); |
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u(1, vpic_field(deblocking_filter_control_present_flag)); |
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u(1, vpic_field(constrained_intra_pred_flag)); |
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u(1, vpic_field(redundant_pic_cnt_present_flag)); |
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u(1, vpic_field(transform_8x8_mode_flag)); |
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u(1, vpic_field(pic_scaling_matrix_present_flag)); |
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if (vpic->pic_fields.bits.pic_scaling_matrix_present_flag) { |
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av_assert0(0 && "scaling matrices not supported"); |
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} |
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se(vpic_var(second_chroma_qp_index_offset)); |
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vaapi_encode_h264_write_trailing_rbsp(pbc); |
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} |
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static void vaapi_encode_h264_write_slice_header2(PutBitContext *pbc, |
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VAAPIEncodeContext *ctx, |
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VAAPIEncodePicture *pic, |
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VAAPIEncodeSlice *slice) |
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{ |
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VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params; |
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VAEncPictureParameterBufferH264 *vpic = pic->codec_picture_params; |
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VAEncSliceParameterBufferH264 *vslice = slice->codec_slice_params; |
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VAAPIEncodeH264Context *priv = ctx->priv_data; |
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VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params; |
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VAAPIEncodeH264Slice *pslice = slice->priv_data; |
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VAAPIEncodeH264MiscSliceParams *mslice = &pslice->misc_slice_params; |
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vaapi_encode_h264_write_nal_header(pbc, mslice->nal_unit_type, |
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mslice->nal_ref_idc); |
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ue(vslice->macroblock_address, first_mb_in_slice); |
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ue(vslice_var(slice_type)); |
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ue(vpic_var(pic_parameter_set_id)); |
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if (mseq->separate_colour_plane_flag) { |
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u(2, mslice_var(colour_plane_id)); |
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} |
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u(4 + vseq->seq_fields.bits.log2_max_frame_num_minus4, |
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(vpic->frame_num & |
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((1 << (4 + vseq->seq_fields.bits.log2_max_frame_num_minus4)) - 1)), |
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frame_num); |
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if (!vseq->seq_fields.bits.frame_mbs_only_flag) { |
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u(1, mslice_var(field_pic_flag)); |
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if (mslice->field_pic_flag) |
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u(1, mslice_var(bottom_field_flag)); |
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} |
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if (vpic->pic_fields.bits.idr_pic_flag) { |
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ue(vslice_var(idr_pic_id)); |
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} |
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if (vseq->seq_fields.bits.pic_order_cnt_type == 0) { |
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u(4 + vseq->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4, |
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vslice_var(pic_order_cnt_lsb)); |
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if (mseq->bottom_field_pic_order_in_frame_present_flag && |
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!mslice->field_pic_flag) { |
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se(vslice_var(delta_pic_order_cnt_bottom)); |
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} |
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} |
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if (vseq->seq_fields.bits.pic_order_cnt_type == 1 && |
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!vseq->seq_fields.bits.delta_pic_order_always_zero_flag) { |
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se(vslice_var(delta_pic_order_cnt[0])); |
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if (mseq->bottom_field_pic_order_in_frame_present_flag && |
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!mslice->field_pic_flag) { |
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se(vslice_var(delta_pic_order_cnt[1])); |
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} |
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} |
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if (vpic->pic_fields.bits.redundant_pic_cnt_present_flag) { |
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ue(mslice_var(redundant_pic_cnt)); |
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} |
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if (vslice->slice_type == SLICE_TYPE_B) { |
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u(1, vslice_var(direct_spatial_mv_pred_flag)); |
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} |
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if (vslice->slice_type == SLICE_TYPE_P || |
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vslice->slice_type == SLICE_TYPE_SP || |
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vslice->slice_type == SLICE_TYPE_B) { |
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u(1, vslice_var(num_ref_idx_active_override_flag)); |
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if (vslice->num_ref_idx_active_override_flag) { |
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ue(vslice_var(num_ref_idx_l0_active_minus1)); |
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if (vslice->slice_type == SLICE_TYPE_B) |
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ue(vslice_var(num_ref_idx_l1_active_minus1)); |
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} |
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} |
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if (mslice->nal_unit_type == 20 || mslice->nal_unit_type == 21) { |
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av_assert0(0 && "no MVC support"); |
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} else { |
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if (vslice->slice_type % 5 != 2 && vslice->slice_type % 5 != 4) { |
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u(1, mslice_var(ref_pic_list_modification_flag_l0)); |
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if (mslice->ref_pic_list_modification_flag_l0) { |
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av_assert0(0 && "ref pic list modification"); |
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} |
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} |
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if (vslice->slice_type % 5 == 1) { |
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u(1, mslice_var(ref_pic_list_modification_flag_l1)); |
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if (mslice->ref_pic_list_modification_flag_l1) { |
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av_assert0(0 && "ref pic list modification"); |
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} |
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} |
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} |
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if ((vpic->pic_fields.bits.weighted_pred_flag && |
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(vslice->slice_type == SLICE_TYPE_P || |
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vslice->slice_type == SLICE_TYPE_SP)) || |
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(vpic->pic_fields.bits.weighted_bipred_idc == 1 && |
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vslice->slice_type == SLICE_TYPE_B)) { |
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av_assert0(0 && "prediction weights not supported"); |
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} |
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av_assert0(mslice->nal_ref_idc > 0 == |
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vpic->pic_fields.bits.reference_pic_flag); |
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if (mslice->nal_ref_idc != 0) { |
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if (vpic->pic_fields.bits.idr_pic_flag) { |
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u(1, mslice_var(no_output_of_prior_pics_flag)); |
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u(1, mslice_var(long_term_reference_flag)); |
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} else { |
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u(1, mslice_var(adaptive_ref_pic_marking_mode_flag)); |
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if (mslice->adaptive_ref_pic_marking_mode_flag) { |
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av_assert0(0 && "MMCOs not supported"); |
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} |
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} |
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} |
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|
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if (vpic->pic_fields.bits.entropy_coding_mode_flag && |
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vslice->slice_type != SLICE_TYPE_I && |
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vslice->slice_type != SLICE_TYPE_SI) { |
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ue(vslice_var(cabac_init_idc)); |
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} |
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|
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se(vslice_var(slice_qp_delta)); |
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if (vslice->slice_type == SLICE_TYPE_SP || |
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vslice->slice_type == SLICE_TYPE_SI) { |
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if (vslice->slice_type == SLICE_TYPE_SP) |
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u(1, mslice_var(sp_for_switch_flag)); |
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se(mslice_var(slice_qs_delta)); |
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} |
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if (vpic->pic_fields.bits.deblocking_filter_control_present_flag) { |
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ue(vslice_var(disable_deblocking_filter_idc)); |
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if (vslice->disable_deblocking_filter_idc != 1) { |
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se(vslice_var(slice_alpha_c0_offset_div2)); |
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se(vslice_var(slice_beta_offset_div2)); |
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} |
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} |
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if (mseq->num_slice_groups_minus1 > 0 && |
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mseq->slice_group_map_type >= 3 && mseq->slice_group_map_type <= 5) { |
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av_assert0(0 && "slice groups not supported"); |
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} |
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// No alignment - this need not be a byte boundary.
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} |
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static int vaapi_encode_h264_write_sequence_header(AVCodecContext *avctx, |
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char *data, size_t *data_len) |
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{ |
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VAAPIEncodeContext *ctx = avctx->priv_data; |
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PutBitContext pbc; |
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char tmp[256]; |
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int err; |
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size_t nal_len, bit_len, bit_pos, next_len; |
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bit_len = *data_len; |
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bit_pos = 0; |
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init_put_bits(&pbc, tmp, sizeof(tmp)); |
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vaapi_encode_h264_write_sps(&pbc, ctx); |
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nal_len = put_bits_count(&pbc); |
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flush_put_bits(&pbc); |
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next_len = bit_len - bit_pos; |
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err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8, |
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&next_len, |
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tmp, nal_len); |
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if (err < 0) |
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return err; |
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bit_pos += next_len; |
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|
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init_put_bits(&pbc, tmp, sizeof(tmp)); |
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vaapi_encode_h264_write_pps(&pbc, ctx); |
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nal_len = put_bits_count(&pbc); |
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flush_put_bits(&pbc); |
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|
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next_len = bit_len - bit_pos; |
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err = ff_vaapi_encode_h26x_nal_unit_to_byte_stream(data + bit_pos / 8, |
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&next_len, |
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tmp, nal_len); |
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if (err < 0) |
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return err; |
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bit_pos += next_len; |
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|
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*data_len = bit_pos; |
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return 0; |
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} |
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|
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static int vaapi_encode_h264_write_slice_header(AVCodecContext *avctx, |
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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_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; |
||||
} |
||||
} |
||||
|
||||
{ |
||||
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); |
||||
priv->last_idr_frame = pic->display_order; |
||||
} else { |
||||
av_assert0(pic->display_order > priv->last_idr_frame); |
||||
} |
||||
|
||||
vpic->frame_num = (pic->encode_order - priv->last_idr_frame) & |
||||
((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 >= priv->last_idr_frame); |
||||
vpic->ReferenceFrames[i].picture_id = ref->recon_surface; |
||||
vpic->ReferenceFrames[i].frame_idx = |
||||
ref->encode_order - priv->last_idr_frame; |
||||
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 = NAL_IDR_SLICE; |
||||
else |
||||
mslice->nal_unit_type = 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 VAConfigAttrib vaapi_encode_h264_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_h264_init_internal(AVCodecContext *avctx) |
||||
{ |
||||
VAAPIEncodeContext *ctx = avctx->priv_data; |
||||
VAAPIEncodeH264Context *priv = ctx->priv_data; |
||||
|
||||
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); |
||||
} |
||||
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->mb_width = ctx->aligned_width / 16; |
||||
priv->mb_height = ctx->aligned_height / 16; |
||||
|
||||
if (avctx->bit_rate > 0) { |
||||
av_log(avctx, AV_LOG_ERROR, "Constant bitrate encoding is not " |
||||
"supported!\n"); |
||||
return AVERROR_PATCHWELCOME; |
||||
} |
||||
|
||||
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_h264_config_attributes; |
||||
ctx->nb_config_attributes = |
||||
FF_ARRAY_ELEMS(vaapi_encode_h264_config_attributes); |
||||
|
||||
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, |
||||
}; |
||||
|
||||
static av_cold int vaapi_encode_h264_init(AVCodecContext *avctx) |
||||
{ |
||||
return ff_vaapi_encode_init(avctx, &vaapi_encode_type_h264); |
||||
} |
||||
|
||||
static const AVCodecDefault vaapi_encode_h264_defaults[] = { |
||||
{ "profile", "100" }, |
||||
{ "level", "51" }, |
||||
{ "b", "0" }, |
||||
{ "bf", "2" }, |
||||
{ "g", "120" }, |
||||
{ "global_quality", "20" }, |
||||
{ "i_qfactor", "1.0" }, |
||||
{ "i_qoffset", "0.0" }, |
||||
{ "b_qfactor", "1.2" }, |
||||
{ "b_qoffset", "0.0" }, |
||||
{ NULL }, |
||||
}; |
||||
|
||||
static const AVClass vaapi_encode_h264_class = { |
||||
.class_name = "h264_vaapi", |
||||
.item_name = av_default_item_name, |
||||
.version = LIBAVUTIL_VERSION_INT, |
||||
}; |
||||
|
||||
AVCodec ff_h264_vaapi_encoder = { |
||||
.name = "h264_vaapi", |
||||
.long_name = NULL_IF_CONFIG_SMALL("H.264/AVC (VAAPI)"), |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.id = AV_CODEC_ID_H264, |
||||
.priv_data_size = sizeof(VAAPIEncodeContext), |
||||
.init = &vaapi_encode_h264_init, |
||||
.encode2 = &ff_vaapi_encode2, |
||||
.close = &ff_vaapi_encode_close, |
||||
.priv_class = &vaapi_encode_h264_class, |
||||
.capabilities = AV_CODEC_CAP_DELAY, |
||||
.defaults = vaapi_encode_h264_defaults, |
||||
.pix_fmts = (const enum AVPixelFormat[]) { |
||||
AV_PIX_FMT_VAAPI, |
||||
AV_PIX_FMT_NONE, |
||||
}, |
||||
}; |
@ -0,0 +1,68 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* 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. |
||||
* |
||||
* 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 <stdint.h> |
||||
|
||||
#include "vaapi_encode_h26x.h" |
||||
|
||||
int ff_vaapi_encode_h26x_nal_unit_to_byte_stream(uint8_t *dst, size_t *dst_bit_len, |
||||
uint8_t *src, size_t src_bit_len) |
||||
{ |
||||
size_t dp, sp; |
||||
int zero_run = 0; |
||||
size_t dst_len = *dst_bit_len / 8; |
||||
size_t src_len = (src_bit_len + 7) / 8; |
||||
int trailing_zeroes = src_len * 8 - src_bit_len; |
||||
|
||||
if (dst_len < src_len + 4) { |
||||
// Definitely doesn't fit.
|
||||
goto fail; |
||||
} |
||||
|
||||
// Start code.
|
||||
dst[0] = dst[1] = dst[2] = 0; |
||||
dst[3] = 1; |
||||
dp = 4; |
||||
|
||||
for (sp = 0; sp < src_len; sp++) { |
||||
if (dp >= dst_len) |
||||
goto fail; |
||||
if (zero_run < 2) { |
||||
if (src[sp] == 0) |
||||
++zero_run; |
||||
else |
||||
zero_run = 0; |
||||
} else { |
||||
if ((src[sp] & ~3) == 0) { |
||||
// emulation_prevention_three_byte
|
||||
dst[dp++] = 3; |
||||
if (dp >= dst_len) |
||||
goto fail; |
||||
} |
||||
zero_run = src[sp] == 0; |
||||
} |
||||
dst[dp++] = src[sp]; |
||||
} |
||||
|
||||
*dst_bit_len = 8 * dp - trailing_zeroes; |
||||
return 0; |
||||
|
||||
fail: |
||||
*dst_bit_len = 0; |
||||
return AVERROR(ENOSPC); |
||||
} |
@ -0,0 +1,45 @@ |
||||
/*
|
||||
* This file is part of FFmpeg. |
||||
* |
||||
* 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. |
||||
* |
||||
* 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 |
||||
*/ |
||||
|
||||
#ifndef AVCODEC_VAAPI_ENCODE_H26X_H |
||||
#define AVCODEC_VAAPI_ENCODE_H26X_H |
||||
|
||||
#include <stddef.h> |
||||
#include <stdint.h> |
||||
|
||||
#include "golomb.h" |
||||
#include "put_bits.h" |
||||
|
||||
|
||||
// Debug code may be interested in the name of the syntax element being
|
||||
// for tracing purposes. Here, it is just discarded.
|
||||
|
||||
#define write_u(pbc, width, value, name) put_bits(pbc, width, value) |
||||
#define write_ue(pbc, value, name) set_ue_golomb(pbc, value) |
||||
#define write_se(pbc, value, name) set_se_golomb(pbc, value) |
||||
|
||||
#define u(width, ...) write_u(pbc, width, __VA_ARGS__) |
||||
#define ue(...) write_ue(pbc, __VA_ARGS__) |
||||
#define se(...) write_se(pbc, __VA_ARGS__) |
||||
|
||||
|
||||
// Copy from src to dst, applying emulation prevention.
|
||||
int ff_vaapi_encode_h26x_nal_unit_to_byte_stream(uint8_t *dst, size_t *dst_len, |
||||
uint8_t *src, size_t src_len); |
||||
|
||||
#endif /* AVCODEC_VAAPI_ENCODE_H26X_H */ |
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Reference in new issue