| /* |
| * 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 <va/va.h> |
| #include <va/va_enc_h264.h> |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/internal.h" |
| #include "libavutil/opt.h" |
| #include "libavutil/pixfmt.h" |
| |
| #include "avcodec.h" |
| #include "h264.h" |
| #include "internal.h" |
| #include "vaapi_encode.h" |
| #include "vaapi_encode_h26x.h" |
| |
| enum { |
| SLICE_TYPE_P = 0, |
| SLICE_TYPE_B = 1, |
| SLICE_TYPE_I = 2, |
| SLICE_TYPE_SP = 3, |
| SLICE_TYPE_SI = 4, |
| }; |
| |
| // This structure contains all possibly-useful per-sequence syntax elements |
| // which are not already contained in the various VAAPI structures. |
| typedef struct VAAPIEncodeH264MiscSequenceParams { |
| unsigned int profile_idc; |
| char constraint_set0_flag; |
| char constraint_set1_flag; |
| char constraint_set2_flag; |
| char constraint_set3_flag; |
| char constraint_set4_flag; |
| char constraint_set5_flag; |
| |
| char separate_colour_plane_flag; |
| char qpprime_y_zero_transform_bypass_flag; |
| |
| char gaps_in_frame_num_allowed_flag; |
| char delta_pic_order_always_zero_flag; |
| char bottom_field_pic_order_in_frame_present_flag; |
| |
| unsigned int num_slice_groups_minus1; |
| unsigned int slice_group_map_type; |
| |
| int pic_init_qs_minus26; |
| |
| char vui_parameters_present_flag; |
| } VAAPIEncodeH264MiscSequenceParams; |
| |
| // This structure contains all possibly-useful per-slice syntax elements |
| // which are not already contained in the various VAAPI structures. |
| typedef struct VAAPIEncodeH264MiscSliceParams { |
| unsigned int nal_unit_type; |
| unsigned int nal_ref_idc; |
| |
| unsigned int colour_plane_id; |
| char field_pic_flag; |
| char bottom_field_flag; |
| |
| unsigned int redundant_pic_cnt; |
| |
| char sp_for_switch_flag; |
| int slice_qs_delta; |
| |
| char ref_pic_list_modification_flag_l0; |
| char ref_pic_list_modification_flag_l1; |
| |
| char no_output_of_prior_pics_flag; |
| char long_term_reference_flag; |
| char adaptive_ref_pic_marking_mode_flag; |
| } VAAPIEncodeH264MiscSliceParams; |
| |
| typedef struct VAAPIEncodeH264Slice { |
| VAAPIEncodeH264MiscSliceParams misc_slice_params; |
| } VAAPIEncodeH264Slice; |
| |
| typedef struct VAAPIEncodeH264Context { |
| VAAPIEncodeH264MiscSequenceParams misc_sequence_params; |
| |
| int mb_width; |
| int mb_height; |
| |
| int fixed_qp_idr; |
| int fixed_qp_p; |
| int fixed_qp_b; |
| |
| int next_frame_num; |
| int64_t idr_pic_count; |
| |
| // Rate control configuration. |
| struct { |
| VAEncMiscParameterBuffer misc; |
| VAEncMiscParameterRateControl rc; |
| } rc_params; |
| struct { |
| VAEncMiscParameterBuffer misc; |
| VAEncMiscParameterHRD hrd; |
| } hrd_params; |
| |
| #if VA_CHECK_VERSION(0, 36, 0) |
| // Speed-quality tradeoff setting. |
| struct { |
| VAEncMiscParameterBuffer misc; |
| VAEncMiscParameterBufferQualityLevel quality; |
| } quality_params; |
| #endif |
| } VAAPIEncodeH264Context; |
| |
| typedef struct VAAPIEncodeH264Options { |
| int qp; |
| int quality; |
| int low_power; |
| } VAAPIEncodeH264Options; |
| |
| |
| #define vseq_var(name) vseq->name, name |
| #define vseq_field(name) vseq->seq_fields.bits.name, name |
| #define vpic_var(name) vpic->name, name |
| #define vpic_field(name) vpic->pic_fields.bits.name, name |
| #define vslice_var(name) vslice->name, name |
| #define vslice_field(name) vslice->slice_fields.bits.name, name |
| #define mseq_var(name) mseq->name, name |
| #define mslice_var(name) mslice->name, name |
| |
| static void vaapi_encode_h264_write_nal_header(PutBitContext *pbc, |
| int nal_unit_type, int nal_ref_idc) |
| { |
| u(1, 0, forbidden_zero_bit); |
| u(2, nal_ref_idc, nal_ref_idc); |
| u(5, nal_unit_type, nal_unit_type); |
| } |
| |
| static void vaapi_encode_h264_write_trailing_rbsp(PutBitContext *pbc) |
| { |
| u(1, 1, rbsp_stop_one_bit); |
| while (put_bits_count(pbc) & 7) |
| u(1, 0, rbsp_alignment_zero_bit); |
| } |
| |
| static void vaapi_encode_h264_write_sps(PutBitContext *pbc, |
| VAAPIEncodeContext *ctx) |
| { |
| VAEncSequenceParameterBufferH264 *vseq = ctx->codec_sequence_params; |
| VAAPIEncodeH264Context *priv = ctx->priv_data; |
| VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params; |
| int i; |
| |
| vaapi_encode_h264_write_nal_header(pbc, NAL_SPS, 3); |
| |
| u(8, mseq_var(profile_idc)); |
| u(1, mseq_var(constraint_set0_flag)); |
| u(1, mseq_var(constraint_set1_flag)); |
| u(1, mseq_var(constraint_set2_flag)); |
| u(1, mseq_var(constraint_set3_flag)); |
| u(1, mseq_var(constraint_set4_flag)); |
| u(1, mseq_var(constraint_set5_flag)); |
| u(2, 0, reserved_zero_2bits); |
| |
| u(8, vseq_var(level_idc)); |
| |
| ue(vseq_var(seq_parameter_set_id)); |
| |
| if (mseq->profile_idc == 100 || mseq->profile_idc == 110 || |
| mseq->profile_idc == 122 || mseq->profile_idc == 244 || |
| mseq->profile_idc == 44 || mseq->profile_idc == 83 || |
| mseq->profile_idc == 86 || mseq->profile_idc == 118 || |
| mseq->profile_idc == 128 || mseq->profile_idc == 138) { |
| ue(vseq_field(chroma_format_idc)); |
| |
| if (vseq->seq_fields.bits.chroma_format_idc == 3) |
| u(1, mseq_var(separate_colour_plane_flag)); |
| |
| ue(vseq_var(bit_depth_luma_minus8)); |
| ue(vseq_var(bit_depth_chroma_minus8)); |
| |
| u(1, mseq_var(qpprime_y_zero_transform_bypass_flag)); |
| |
| u(1, vseq_field(seq_scaling_matrix_present_flag)); |
| if (vseq->seq_fields.bits.seq_scaling_matrix_present_flag) { |
| av_assert0(0 && "scaling matrices not supported"); |
| } |
| } |
| |
| ue(vseq_field(log2_max_frame_num_minus4)); |
| ue(vseq_field(pic_order_cnt_type)); |
| |
| if (vseq->seq_fields.bits.pic_order_cnt_type == 0) { |
| ue(vseq_field(log2_max_pic_order_cnt_lsb_minus4)); |
| } else if (vseq->seq_fields.bits.pic_order_cnt_type == 1) { |
| u(1, mseq_var(delta_pic_order_always_zero_flag)); |
| se(vseq_var(offset_for_non_ref_pic)); |
| se(vseq_var(offset_for_top_to_bottom_field)); |
| ue(vseq_var(num_ref_frames_in_pic_order_cnt_cycle)); |
| |
| for (i = 0; i < vseq->num_ref_frames_in_pic_order_cnt_cycle; i++) |
| se(vseq_var(offset_for_ref_frame[i])); |
| } |
| |
| ue(vseq_var(max_num_ref_frames)); |
| u(1, mseq_var(gaps_in_frame_num_allowed_flag)); |
| |
| ue(vseq->picture_width_in_mbs - 1, pic_width_in_mbs_minus1); |
| ue(vseq->picture_height_in_mbs - 1, pic_height_in_mbs_minus1); |
| |
| u(1, vseq_field(frame_mbs_only_flag)); |
| if (!vseq->seq_fields.bits.frame_mbs_only_flag) |
| u(1, vseq_field(mb_adaptive_frame_field_flag)); |
| |
| u(1, vseq_field(direct_8x8_inference_flag)); |
| |
| u(1, vseq_var(frame_cropping_flag)); |
| if (vseq->frame_cropping_flag) { |
| ue(vseq_var(frame_crop_left_offset)); |
| ue(vseq_var(frame_crop_right_offset)); |
| ue(vseq_var(frame_crop_top_offset)); |
| ue(vseq_var(frame_crop_bottom_offset)); |
| } |
| |
| u(1, mseq_var(vui_parameters_present_flag)); |
| |
| vaapi_encode_h264_write_trailing_rbsp(pbc); |
| } |
| |
| static void vaapi_encode_h264_write_pps(PutBitContext *pbc, |
| VAAPIEncodeContext *ctx) |
| { |
| VAEncPictureParameterBufferH264 *vpic = ctx->codec_picture_params; |
| VAAPIEncodeH264Context *priv = ctx->priv_data; |
| VAAPIEncodeH264MiscSequenceParams *mseq = &priv->misc_sequence_params; |
| |
| vaapi_encode_h264_write_nal_header(pbc, 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, |
| 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 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_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->bits_per_second = avctx->bit_rate; |
| if (avctx->framerate.num > 0 && avctx->framerate.den > 0) { |
| vseq->num_units_in_tick = avctx->framerate.num; |
| vseq->time_scale = 2 * avctx->framerate.den; |
| } else { |
| vseq->num_units_in_tick = avctx->time_base.num; |
| vseq->time_scale = 2 * avctx->time_base.den; |
| } |
| |
| 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; |
| } else { |
| vpic->frame_num = priv->next_frame_num; |
| if (pic->type != PICTURE_TYPE_B) { |
| // nal_ref_idc != 0 |
| ++priv->next_frame_num; |
| } |
| } |
| |
| 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 = 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 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, |
| }; |
| |
| 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)", |
| OFFSET(qp), AV_OPT_TYPE_INT, { .i64 = 20 }, 0, 52, FLAGS }, |
| { "quality", "Set encode quality (trades off against speed, higher is faster)", |
| OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8, FLAGS }, |
| { "low_power", "Use low-power encoding mode (experimental: only supported " |
| "on some platforms, does not support all features)", |
| OFFSET(low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS }, |
| { NULL }, |
| }; |
| |
| static const AVCodecDefault vaapi_encode_h264_defaults[] = { |
| { "profile", "100" }, |
| { "level", "51" }, |
| { "b", "0" }, |
| { "bf", "2" }, |
| { "g", "120" }, |
| { "i_qfactor", "1" }, |
| { "i_qoffset", "0" }, |
| { "b_qfactor", "6/5" }, |
| { "b_qoffset", "0" }, |
| { NULL }, |
| }; |
| |
| static const AVClass vaapi_encode_h264_class = { |
| .class_name = "h264_vaapi", |
| .item_name = av_default_item_name, |
| .option = vaapi_encode_h264_options, |
| .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) + |
| sizeof(VAAPIEncodeH264Options)), |
| .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, |
| }, |
| }; |
