/* * gstvaapiencoder_h264.c - H.264 encoder * * Copyright (C) 2012-2014 Intel Corporation * Author: Wind Yuan * Author: Gwenole Beauchesne * * This library 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. * * This library 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 this library; if not, write to the Free * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301 USA */ /* GValueArray has deprecated without providing an alternative in glib >= 2.32 * See https://bugzilla.gnome.org/show_bug.cgi?id=667228 */ #define GLIB_DISABLE_DEPRECATION_WARNINGS #include "sysdeps.h" #include #include #include #include #include "gstvaapicompat.h" #include "gstvaapiencoder_priv.h" #include "gstvaapiencoder_h264.h" #include "gstvaapiutils_h264.h" #include "gstvaapiutils_h264_priv.h" #include "gstvaapicodedbufferproxy_priv.h" #include "gstvaapisurface.h" #define DEBUG 1 #include "gstvaapidebug.h" /* Define the maximum number of views supported */ #define MAX_NUM_VIEWS 10 /* Define the maximum value for view-id */ #define MAX_VIEW_ID 1023 /* Define the maximum IDR period */ #define MAX_IDR_PERIOD 512 /* Default CPB length (in milliseconds) */ #define DEFAULT_CPB_LENGTH 1500 /* Scale factor for CPB size (HRD cpb_size_scale: min = 4) */ #define SX_CPB_SIZE 4 /* Scale factor for bitrate (HRD bit_rate_scale: min = 6) */ #define SX_BITRATE 6 /* Define default rate control mode ("constant-qp") */ #define DEFAULT_RATECONTROL GST_VAAPI_RATECONTROL_CQP /* Supported set of VA rate controls, within this implementation */ #define SUPPORTED_RATECONTROLS \ (GST_VAAPI_RATECONTROL_MASK (CQP) | \ GST_VAAPI_RATECONTROL_MASK (CBR) | \ GST_VAAPI_RATECONTROL_MASK (VBR) | \ GST_VAAPI_RATECONTROL_MASK (VBR_CONSTRAINED)) /* Supported set of tuning options, within this implementation */ #define SUPPORTED_TUNE_OPTIONS \ (GST_VAAPI_ENCODER_TUNE_MASK (NONE) | \ GST_VAAPI_ENCODER_TUNE_MASK (HIGH_COMPRESSION) | \ GST_VAAPI_ENCODER_TUNE_MASK (LOW_POWER)) /* Supported set of VA packed headers, within this implementation */ #define SUPPORTED_PACKED_HEADERS \ (VA_ENC_PACKED_HEADER_SEQUENCE | \ VA_ENC_PACKED_HEADER_PICTURE | \ VA_ENC_PACKED_HEADER_SLICE | \ VA_ENC_PACKED_HEADER_RAW_DATA | \ VA_ENC_PACKED_HEADER_MISC) #define GST_H264_NAL_REF_IDC_NONE 0 #define GST_H264_NAL_REF_IDC_LOW 1 #define GST_H264_NAL_REF_IDC_MEDIUM 2 #define GST_H264_NAL_REF_IDC_HIGH 3 /* only for internal usage, values won't be equal to actual payload type */ typedef enum { GST_VAAPI_H264_SEI_UNKNOWN = 0, GST_VAAPI_H264_SEI_BUF_PERIOD = (1 << 0), GST_VAAPI_H264_SEI_PIC_TIMING = (1 << 1) } GstVaapiH264SeiPayloadType; typedef struct { GstVaapiSurfaceProxy *pic; guint poc; guint frame_num; } GstVaapiEncoderH264Ref; typedef enum { GST_VAAPI_ENC_H264_REORD_NONE = 0, GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES = 1, GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES = 2 } GstVaapiEncH264ReorderState; typedef struct _GstVaapiH264ViewRefPool { GQueue ref_list; guint max_ref_frames; guint max_reflist0_count; guint max_reflist1_count; } GstVaapiH264ViewRefPool; typedef struct _GstVaapiH264ViewReorderPool { GQueue reorder_frame_list; guint reorder_state; guint frame_index; guint frame_count; /* monotonically increasing with in every idr period */ guint cur_frame_num; guint cur_present_index; } GstVaapiH264ViewReorderPool; static inline gboolean _poc_greater_than (guint poc1, guint poc2, guint max_poc) { return (((poc1 - poc2) & (max_poc - 1)) < max_poc / 2); } /* Get slice_type value for H.264 specification */ static guint8 h264_get_slice_type (GstVaapiPictureType type) { switch (type) { case GST_VAAPI_PICTURE_TYPE_I: return GST_H264_I_SLICE; case GST_VAAPI_PICTURE_TYPE_P: return GST_H264_P_SLICE; case GST_VAAPI_PICTURE_TYPE_B: return GST_H264_B_SLICE; default: break; } return -1; } /* Get log2_max_frame_num value for H.264 specification */ static guint h264_get_log2_max_frame_num (guint num) { guint ret = 0; while (num) { ++ret; num >>= 1; } if (ret <= 4) ret = 4; else if (ret > 10) ret = 10; /* must be greater than 4 */ return ret; } /* Determines the cpbBrNalFactor based on the supplied profile */ static guint h264_get_cpb_nal_factor (GstVaapiProfile profile) { guint f; /* Table A-2 */ switch (profile) { case GST_VAAPI_PROFILE_H264_HIGH: f = 1500; break; case GST_VAAPI_PROFILE_H264_HIGH10: f = 3600; break; case GST_VAAPI_PROFILE_H264_HIGH_422: case GST_VAAPI_PROFILE_H264_HIGH_444: f = 4800; break; case GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH: case GST_VAAPI_PROFILE_H264_STEREO_HIGH: f = 1500; /* H.10.2.1 (r) */ break; default: f = 1200; break; } return f; } /* ------------------------------------------------------------------------- */ /* --- H.264 Bitstream Writer --- */ /* ------------------------------------------------------------------------- */ #define WRITE_UINT32(bs, val, nbits) do { \ if (!gst_bit_writer_put_bits_uint32 (bs, val, nbits)) { \ GST_WARNING ("failed to write uint32, nbits: %d", nbits); \ goto bs_error; \ } \ } while (0) #define WRITE_UE(bs, val) do { \ if (!bs_write_ue (bs, val)) { \ GST_WARNING ("failed to write ue(v)"); \ goto bs_error; \ } \ } while (0) #define WRITE_SE(bs, val) do { \ if (!bs_write_se (bs, val)) { \ GST_WARNING ("failed to write se(v)"); \ goto bs_error; \ } \ } while (0) /* Write an unsigned integer Exp-Golomb-coded syntax element. i.e. ue(v) */ static gboolean bs_write_ue (GstBitWriter * bs, guint32 value) { guint32 size_in_bits = 0; guint32 tmp_value = ++value; while (tmp_value) { ++size_in_bits; tmp_value >>= 1; } if (size_in_bits > 1 && !gst_bit_writer_put_bits_uint32 (bs, 0, size_in_bits - 1)) return FALSE; if (!gst_bit_writer_put_bits_uint32 (bs, value, size_in_bits)) return FALSE; return TRUE; } /* Write a signed integer Exp-Golomb-coded syntax element. i.e. se(v) */ static gboolean bs_write_se (GstBitWriter * bs, gint32 value) { guint32 new_val; if (value <= 0) new_val = -(value << 1); else new_val = (value << 1) - 1; if (!bs_write_ue (bs, new_val)) return FALSE; return TRUE; } /* Write the NAL unit header */ static gboolean bs_write_nal_header (GstBitWriter * bs, guint32 nal_ref_idc, guint32 nal_unit_type) { WRITE_UINT32 (bs, 0, 1); WRITE_UINT32 (bs, nal_ref_idc, 2); WRITE_UINT32 (bs, nal_unit_type, 5); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write NAL unit header"); return FALSE; } } /* Write the MVC NAL unit header extension */ static gboolean bs_write_nal_header_mvc_extension (GstBitWriter * bs, GstVaapiEncPicture * picture, guint32 view_id) { guint32 svc_extension_flag = 0; guint32 non_idr_flag = 1; guint32 priority_id = 0; guint32 temporal_id = 0; guint32 anchor_pic_flag = 0; guint32 inter_view_flag = 0; if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) non_idr_flag = 0; if (picture->type == GST_VAAPI_PICTURE_TYPE_I) anchor_pic_flag = 1; /* svc_extension_flag == 0 for mvc stream */ WRITE_UINT32 (bs, svc_extension_flag, 1); WRITE_UINT32 (bs, non_idr_flag, 1); WRITE_UINT32 (bs, priority_id, 6); WRITE_UINT32 (bs, view_id, 10); WRITE_UINT32 (bs, temporal_id, 3); WRITE_UINT32 (bs, anchor_pic_flag, 1); WRITE_UINT32 (bs, inter_view_flag, 1); WRITE_UINT32 (bs, 1, 1); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write NAL unit header"); return FALSE; } } /* Write the NAL unit trailing bits */ static gboolean bs_write_trailing_bits (GstBitWriter * bs) { if (!gst_bit_writer_put_bits_uint32 (bs, 1, 1)) goto bs_error; gst_bit_writer_align_bytes_unchecked (bs, 0); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write NAL unit trailing bits"); return FALSE; } } /* Write an SPS NAL unit */ static gboolean bs_write_sps_data (GstBitWriter * bs, const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile, const VAEncMiscParameterHRD * hrd_params) { guint8 profile_idc; guint32 constraint_set0_flag, constraint_set1_flag; guint32 constraint_set2_flag, constraint_set3_flag; guint32 gaps_in_frame_num_value_allowed_flag = 0; // ?? gboolean nal_hrd_parameters_present_flag; guint32 b_qpprime_y_zero_transform_bypass = 0; guint32 residual_color_transform_flag = 0; guint32 pic_height_in_map_units = (seq_param->seq_fields.bits.frame_mbs_only_flag ? seq_param->picture_height_in_mbs : seq_param->picture_height_in_mbs / 2); guint32 mb_adaptive_frame_field = !seq_param->seq_fields.bits.frame_mbs_only_flag; guint32 i = 0; profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile); constraint_set0_flag = /* A.2.1 (baseline profile constraints) */ profile == GST_VAAPI_PROFILE_H264_BASELINE || profile == GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE; constraint_set1_flag = /* A.2.2 (main profile constraints) */ profile == GST_VAAPI_PROFILE_H264_MAIN || profile == GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE; constraint_set2_flag = 0; constraint_set3_flag = 0; /* profile_idc */ WRITE_UINT32 (bs, profile_idc, 8); /* constraint_set0_flag */ WRITE_UINT32 (bs, constraint_set0_flag, 1); /* constraint_set1_flag */ WRITE_UINT32 (bs, constraint_set1_flag, 1); /* constraint_set2_flag */ WRITE_UINT32 (bs, constraint_set2_flag, 1); /* constraint_set3_flag */ WRITE_UINT32 (bs, constraint_set3_flag, 1); /* reserved_zero_4bits */ WRITE_UINT32 (bs, 0, 4); /* level_idc */ WRITE_UINT32 (bs, seq_param->level_idc, 8); /* seq_parameter_set_id */ WRITE_UE (bs, seq_param->seq_parameter_set_id); if (profile == GST_VAAPI_PROFILE_H264_HIGH || profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH || profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH) { /* for high profile */ /* chroma_format_idc = 1, 4:2:0 */ WRITE_UE (bs, seq_param->seq_fields.bits.chroma_format_idc); if (3 == seq_param->seq_fields.bits.chroma_format_idc) { WRITE_UINT32 (bs, residual_color_transform_flag, 1); } /* bit_depth_luma_minus8 */ WRITE_UE (bs, seq_param->bit_depth_luma_minus8); /* bit_depth_chroma_minus8 */ WRITE_UE (bs, seq_param->bit_depth_chroma_minus8); /* b_qpprime_y_zero_transform_bypass */ WRITE_UINT32 (bs, b_qpprime_y_zero_transform_bypass, 1); /* seq_scaling_matrix_present_flag */ g_assert (seq_param->seq_fields.bits.seq_scaling_matrix_present_flag == 0); WRITE_UINT32 (bs, seq_param->seq_fields.bits.seq_scaling_matrix_present_flag, 1); #if 0 if (seq_param->seq_fields.bits.seq_scaling_matrix_present_flag) { for (i = 0; i < (seq_param->seq_fields.bits.chroma_format_idc != 3 ? 8 : 12); i++) { gst_bit_writer_put_bits_uint8 (bs, seq_param->seq_fields.bits.seq_scaling_list_present_flag, 1); if (seq_param->seq_fields.bits.seq_scaling_list_present_flag) { g_assert (0); /* FIXME, need write scaling list if seq_scaling_matrix_present_flag ==1 */ } } } #endif } /* log2_max_frame_num_minus4 */ WRITE_UE (bs, seq_param->seq_fields.bits.log2_max_frame_num_minus4); /* pic_order_cnt_type */ WRITE_UE (bs, seq_param->seq_fields.bits.pic_order_cnt_type); if (seq_param->seq_fields.bits.pic_order_cnt_type == 0) { /* log2_max_pic_order_cnt_lsb_minus4 */ WRITE_UE (bs, seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4); } else if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) { g_assert (0 && "only POC type 0 is supported"); WRITE_UINT32 (bs, seq_param->seq_fields.bits.delta_pic_order_always_zero_flag, 1); WRITE_SE (bs, seq_param->offset_for_non_ref_pic); WRITE_SE (bs, seq_param->offset_for_top_to_bottom_field); WRITE_UE (bs, seq_param->num_ref_frames_in_pic_order_cnt_cycle); for (i = 0; i < seq_param->num_ref_frames_in_pic_order_cnt_cycle; i++) { WRITE_SE (bs, seq_param->offset_for_ref_frame[i]); } } /* num_ref_frames */ WRITE_UE (bs, seq_param->max_num_ref_frames); /* gaps_in_frame_num_value_allowed_flag */ WRITE_UINT32 (bs, gaps_in_frame_num_value_allowed_flag, 1); /* pic_width_in_mbs_minus1 */ WRITE_UE (bs, seq_param->picture_width_in_mbs - 1); /* pic_height_in_map_units_minus1 */ WRITE_UE (bs, pic_height_in_map_units - 1); /* frame_mbs_only_flag */ WRITE_UINT32 (bs, seq_param->seq_fields.bits.frame_mbs_only_flag, 1); if (!seq_param->seq_fields.bits.frame_mbs_only_flag) { //ONLY mbs g_assert (0 && "only progressive frames encoding is supported"); WRITE_UINT32 (bs, mb_adaptive_frame_field, 1); } /* direct_8x8_inference_flag */ WRITE_UINT32 (bs, 0, 1); /* frame_cropping_flag */ WRITE_UINT32 (bs, seq_param->frame_cropping_flag, 1); if (seq_param->frame_cropping_flag) { /* frame_crop_left_offset */ WRITE_UE (bs, seq_param->frame_crop_left_offset); /* frame_crop_right_offset */ WRITE_UE (bs, seq_param->frame_crop_right_offset); /* frame_crop_top_offset */ WRITE_UE (bs, seq_param->frame_crop_top_offset); /* frame_crop_bottom_offset */ WRITE_UE (bs, seq_param->frame_crop_bottom_offset); } /* vui_parameters_present_flag */ WRITE_UINT32 (bs, seq_param->vui_parameters_present_flag, 1); if (seq_param->vui_parameters_present_flag) { /* aspect_ratio_info_present_flag */ WRITE_UINT32 (bs, seq_param->vui_fields.bits.aspect_ratio_info_present_flag, 1); if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) { WRITE_UINT32 (bs, seq_param->aspect_ratio_idc, 8); if (seq_param->aspect_ratio_idc == 0xFF) { WRITE_UINT32 (bs, seq_param->sar_width, 16); WRITE_UINT32 (bs, seq_param->sar_height, 16); } } /* overscan_info_present_flag */ WRITE_UINT32 (bs, 0, 1); /* video_signal_type_present_flag */ WRITE_UINT32 (bs, 0, 1); /* chroma_loc_info_present_flag */ WRITE_UINT32 (bs, 0, 1); /* timing_info_present_flag */ WRITE_UINT32 (bs, seq_param->vui_fields.bits.timing_info_present_flag, 1); if (seq_param->vui_fields.bits.timing_info_present_flag) { WRITE_UINT32 (bs, seq_param->num_units_in_tick, 32); WRITE_UINT32 (bs, seq_param->time_scale, 32); WRITE_UINT32 (bs, 1, 1); /* fixed_frame_rate_flag */ } /* nal_hrd_parameters_present_flag */ nal_hrd_parameters_present_flag = seq_param->bits_per_second > 0; WRITE_UINT32 (bs, nal_hrd_parameters_present_flag, 1); if (nal_hrd_parameters_present_flag) { /* hrd_parameters */ /* cpb_cnt_minus1 */ WRITE_UE (bs, 0); WRITE_UINT32 (bs, SX_BITRATE - 6, 4); /* bit_rate_scale */ WRITE_UINT32 (bs, SX_CPB_SIZE - 4, 4); /* cpb_size_scale */ for (i = 0; i < 1; ++i) { /* bit_rate_value_minus1[0] */ WRITE_UE (bs, (seq_param->bits_per_second >> SX_BITRATE) - 1); /* cpb_size_value_minus1[0] */ WRITE_UE (bs, (hrd_params->buffer_size >> SX_CPB_SIZE) - 1); /* cbr_flag[0] */ WRITE_UINT32 (bs, 1, 1); } /* initial_cpb_removal_delay_length_minus1 */ WRITE_UINT32 (bs, 23, 5); /* cpb_removal_delay_length_minus1 */ WRITE_UINT32 (bs, 23, 5); /* dpb_output_delay_length_minus1 */ WRITE_UINT32 (bs, 23, 5); /* time_offset_length */ WRITE_UINT32 (bs, 23, 5); } /* vcl_hrd_parameters_present_flag */ WRITE_UINT32 (bs, 0, 1); if (nal_hrd_parameters_present_flag || 0 /*vcl_hrd_parameters_present_flag */ ) { /* low_delay_hrd_flag */ WRITE_UINT32 (bs, 0, 1); } /* pic_struct_present_flag */ WRITE_UINT32 (bs, 1, 1); /* bs_restriction_flag */ WRITE_UINT32 (bs, 0, 1); } return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write SPS NAL unit"); return FALSE; } } static gboolean bs_write_sps (GstBitWriter * bs, const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile, const VAEncMiscParameterHRD * hrd_params) { if (!bs_write_sps_data (bs, seq_param, profile, hrd_params)) return FALSE; /* rbsp_trailing_bits */ bs_write_trailing_bits (bs); return FALSE; } static gboolean bs_write_subset_sps (GstBitWriter * bs, const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile, guint num_views, guint16 * view_ids, const VAEncMiscParameterHRD * hrd_params) { guint32 i, j, k; if (!bs_write_sps_data (bs, seq_param, profile, hrd_params)) return FALSE; if (profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH || profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH) { guint32 num_views_minus1, num_level_values_signalled_minus1; num_views_minus1 = num_views - 1; g_assert (num_views_minus1 < 1024); /* bit equal to one */ WRITE_UINT32 (bs, 1, 1); WRITE_UE (bs, num_views_minus1); for (i = 0; i <= num_views_minus1; i++) WRITE_UE (bs, view_ids[i]); for (i = 1; i <= num_views_minus1; i++) { guint32 num_anchor_refs_l0 = 0; guint32 num_anchor_refs_l1 = 0; WRITE_UE (bs, num_anchor_refs_l0); for (j = 0; j < num_anchor_refs_l0; j++) WRITE_UE (bs, 0); WRITE_UE (bs, num_anchor_refs_l1); for (j = 0; j < num_anchor_refs_l1; j++) WRITE_UE (bs, 0); } for (i = 1; i <= num_views_minus1; i++) { guint32 num_non_anchor_refs_l0 = 0; guint32 num_non_anchor_refs_l1 = 0; WRITE_UE (bs, num_non_anchor_refs_l0); for (j = 0; j < num_non_anchor_refs_l0; j++) WRITE_UE (bs, 0); WRITE_UE (bs, num_non_anchor_refs_l1); for (j = 0; j < num_non_anchor_refs_l1; j++) WRITE_UE (bs, 0); } /* num level values signalled minus1 */ num_level_values_signalled_minus1 = 0; g_assert (num_level_values_signalled_minus1 < 64); WRITE_UE (bs, num_level_values_signalled_minus1); for (i = 0; i <= num_level_values_signalled_minus1; i++) { guint16 num_applicable_ops_minus1 = 0; g_assert (num_applicable_ops_minus1 < 1024); WRITE_UINT32 (bs, seq_param->level_idc, 8); WRITE_UE (bs, num_applicable_ops_minus1); for (j = 0; j <= num_applicable_ops_minus1; j++) { guint8 temporal_id = 0; guint16 num_target_views_minus1 = 1; WRITE_UINT32 (bs, temporal_id, 3); WRITE_UE (bs, num_target_views_minus1); for (k = 0; k <= num_target_views_minus1; k++) WRITE_UE (bs, k); WRITE_UE (bs, num_views_minus1); } } /* mvc_vui_parameters_present_flag */ WRITE_UINT32 (bs, 0, 1); } /* additional_extension2_flag */ WRITE_UINT32 (bs, 0, 1); /* rbsp_trailing_bits */ bs_write_trailing_bits (bs); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write subset SPS NAL unit"); return FALSE; } return FALSE; } /* Write a PPS NAL unit */ static gboolean bs_write_pps (GstBitWriter * bs, const VAEncPictureParameterBufferH264 * pic_param, GstVaapiProfile profile) { guint32 num_slice_groups_minus1 = 0; guint32 pic_init_qs_minus26 = 0; guint32 redundant_pic_cnt_present_flag = 0; /* pic_parameter_set_id */ WRITE_UE (bs, pic_param->pic_parameter_set_id); /* seq_parameter_set_id */ WRITE_UE (bs, pic_param->seq_parameter_set_id); /* entropy_coding_mode_flag */ WRITE_UINT32 (bs, pic_param->pic_fields.bits.entropy_coding_mode_flag, 1); /* pic_order_present_flag */ WRITE_UINT32 (bs, pic_param->pic_fields.bits.pic_order_present_flag, 1); /* slice_groups-1 */ WRITE_UE (bs, num_slice_groups_minus1); if (num_slice_groups_minus1 > 0) { /*FIXME*/ g_assert (0 && "unsupported arbitrary slice ordering (ASO)"); } WRITE_UE (bs, pic_param->num_ref_idx_l0_active_minus1); WRITE_UE (bs, pic_param->num_ref_idx_l1_active_minus1); WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_pred_flag, 1); WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_bipred_idc, 2); /* pic_init_qp_minus26 */ WRITE_SE (bs, pic_param->pic_init_qp - 26); /* pic_init_qs_minus26 */ WRITE_SE (bs, pic_init_qs_minus26); /* chroma_qp_index_offset */ WRITE_SE (bs, pic_param->chroma_qp_index_offset); WRITE_UINT32 (bs, pic_param->pic_fields.bits.deblocking_filter_control_present_flag, 1); WRITE_UINT32 (bs, pic_param->pic_fields.bits.constrained_intra_pred_flag, 1); WRITE_UINT32 (bs, redundant_pic_cnt_present_flag, 1); /* more_rbsp_data */ if (profile == GST_VAAPI_PROFILE_H264_HIGH || profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH || profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH) { WRITE_UINT32 (bs, pic_param->pic_fields.bits.transform_8x8_mode_flag, 1); WRITE_UINT32 (bs, pic_param->pic_fields.bits.pic_scaling_matrix_present_flag, 1); if (pic_param->pic_fields.bits.pic_scaling_matrix_present_flag) { g_assert (0 && "unsupported scaling lists"); /* FIXME */ /* for (i = 0; i < (6+(-( (chroma_format_idc ! = 3) ? 2 : 6) * -pic_param->pic_fields.bits.transform_8x8_mode_flag)); i++) { gst_bit_writer_put_bits_uint8(bs, pic_param->pic_fields.bits.pic_scaling_list_present_flag, 1); } */ } WRITE_SE (bs, pic_param->second_chroma_qp_index_offset); } /* rbsp_trailing_bits */ bs_write_trailing_bits (bs); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write PPS NAL unit"); return FALSE; } } /* ------------------------------------------------------------------------- */ /* --- H.264 Encoder --- */ /* ------------------------------------------------------------------------- */ #define GST_VAAPI_ENCODER_H264_CAST(encoder) \ ((GstVaapiEncoderH264 *)(encoder)) struct _GstVaapiEncoderH264 { GstVaapiEncoder parent_instance; GstVaapiProfile profile; GstVaapiLevelH264 level; GstVaapiEntrypoint entrypoint; guint8 profile_idc; guint8 max_profile_idc; guint8 hw_max_profile_idc; guint8 level_idc; guint32 idr_period; guint32 init_qp; guint32 min_qp; guint32 num_slices; guint32 num_bframes; guint32 mb_width; guint32 mb_height; gboolean use_cabac; gboolean use_dct8x8; GstClockTime cts_offset; gboolean config_changed; /* frame, poc */ guint32 max_frame_num; guint32 log2_max_frame_num; guint32 max_pic_order_cnt; guint32 log2_max_pic_order_cnt; guint32 idr_num; guint8 pic_order_cnt_type; guint8 delta_pic_order_always_zero_flag; GstBuffer *sps_data; GstBuffer *subset_sps_data; GstBuffer *pps_data; guint bitrate_bits; // bitrate (bits) guint cpb_length; // length of CPB buffer (ms) guint cpb_length_bits; // length of CPB buffer (bits) /* MVC */ gboolean is_mvc; guint32 view_idx; /* View Order Index (VOIdx) */ guint32 num_views; guint16 view_ids[MAX_NUM_VIEWS]; GstVaapiH264ViewRefPool ref_pools[MAX_NUM_VIEWS]; GstVaapiH264ViewReorderPool reorder_pools[MAX_NUM_VIEWS]; }; /* Write a SEI buffering period payload */ static gboolean bs_write_sei_buf_period (GstBitWriter * bs, GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { guint initial_cpb_removal_delay = 0; guint initial_cpb_removal_delay_offset = 0; guint8 initial_cpb_removal_delay_length = 24; /* sequence_parameter_set_id */ WRITE_UE (bs, encoder->view_idx); /* NalHrdBpPresentFlag == TRUE */ /* cpb_cnt_minus1 == 0 */ /* decoding should start when the CPB fullness reaches half of cpb size * initial_cpb_remvoal_delay = (((cpb_length / 2) * 90000) / 1000) */ initial_cpb_removal_delay = encoder->cpb_length * 45; /* initial_cpb_remvoal_dealy */ WRITE_UINT32 (bs, initial_cpb_removal_delay, initial_cpb_removal_delay_length); /* initial_cpb_removal_delay_offset */ WRITE_UINT32 (bs, initial_cpb_removal_delay_offset, initial_cpb_removal_delay_length); /* VclHrdBpPresentFlag == FALSE */ return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write Buffering Period SEI message"); return FALSE; } } /* Write a SEI picture timing payload */ static gboolean bs_write_sei_pic_timing (GstBitWriter * bs, GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { GstVaapiH264ViewReorderPool *reorder_pool = NULL; guint cpb_removal_delay; guint dpb_output_delay; guint8 cpb_removal_delay_length = 24; guint8 dpb_output_delay_length = 24; guint pic_struct = 0; guint clock_timestamp_flag = 0; reorder_pool = &encoder->reorder_pools[encoder->view_idx]; if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) reorder_pool->frame_count = 0; else reorder_pool->frame_count++; /* clock-tick = no_units_in_tick/time_scale (C-1) * time_scale = FPS_N * 2 (E.2.1) * num_units_in_tick = FPS_D (E.2.1) * frame_duration = clock-tick * 2 * so removal time for one frame is 2 clock-ticks. * but adding a tolerance of one frame duration, * which is 2 more clock-ticks */ cpb_removal_delay = (reorder_pool->frame_count * 2 + 2); if (picture->type == GST_VAAPI_PICTURE_TYPE_B) dpb_output_delay = 0; else dpb_output_delay = picture->poc - reorder_pool->frame_count * 2; /* CpbDpbDelaysPresentFlag == 1 */ WRITE_UINT32 (bs, cpb_removal_delay, cpb_removal_delay_length); WRITE_UINT32 (bs, dpb_output_delay, dpb_output_delay_length); /* pic_struct_present_flag == 1 */ /* pic_struct */ WRITE_UINT32 (bs, pic_struct, 4); /* clock_timestamp_flag */ WRITE_UINT32 (bs, clock_timestamp_flag, 1); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write Picture Timing SEI message"); return FALSE; } } /* Write a Slice NAL unit */ static gboolean bs_write_slice (GstBitWriter * bs, const VAEncSliceParameterBufferH264 * slice_param, GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { const VAEncPictureParameterBufferH264 *const pic_param = picture->param; guint32 field_pic_flag = 0; guint32 ref_pic_list_modification_flag_l0 = 0; guint32 ref_pic_list_modification_flag_l1 = 0; guint32 no_output_of_prior_pics_flag = 0; guint32 long_term_reference_flag = 0; guint32 adaptive_ref_pic_marking_mode_flag = 0; /* first_mb_in_slice */ WRITE_UE (bs, slice_param->macroblock_address); /* slice_type */ WRITE_UE (bs, slice_param->slice_type); /* pic_parameter_set_id */ WRITE_UE (bs, slice_param->pic_parameter_set_id); /* frame_num */ WRITE_UINT32 (bs, picture->frame_num, encoder->log2_max_frame_num); /* XXX: only frames (i.e. non-interlaced) are supported for now */ /* frame_mbs_only_flag == 0 */ /* idr_pic_id */ if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) WRITE_UE (bs, slice_param->idr_pic_id); /* XXX: only POC type 0 is supported */ if (!encoder->pic_order_cnt_type) { WRITE_UINT32 (bs, slice_param->pic_order_cnt_lsb, encoder->log2_max_pic_order_cnt); /* bottom_field_pic_order_in_frame_present_flag is FALSE */ if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag) WRITE_SE (bs, slice_param->delta_pic_order_cnt_bottom); } else if (encoder->pic_order_cnt_type == 1 && !encoder->delta_pic_order_always_zero_flag) { WRITE_SE (bs, slice_param->delta_pic_order_cnt[0]); if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag) WRITE_SE (bs, slice_param->delta_pic_order_cnt[1]); } /* redundant_pic_cnt_present_flag is FALSE, no redundant coded pictures */ /* only works for B-frames */ if (slice_param->slice_type == 1) WRITE_UINT32 (bs, slice_param->direct_spatial_mv_pred_flag, 1); /* not supporting SP slices */ if (slice_param->slice_type == 0 || slice_param->slice_type == 1) { WRITE_UINT32 (bs, slice_param->num_ref_idx_active_override_flag, 1); if (slice_param->num_ref_idx_active_override_flag) { WRITE_UE (bs, slice_param->num_ref_idx_l0_active_minus1); if (slice_param->slice_type == 1) WRITE_UE (bs, slice_param->num_ref_idx_l1_active_minus1); } } /* XXX: not supporting custom reference picture list modifications */ if ((slice_param->slice_type != 2) && (slice_param->slice_type != 4)) WRITE_UINT32 (bs, ref_pic_list_modification_flag_l0, 1); if (slice_param->slice_type == 1) WRITE_UINT32 (bs, ref_pic_list_modification_flag_l1, 1); /* we have: weighted_pred_flag == FALSE and */ /* : weighted_bipred_idc == FALSE */ if ((pic_param->pic_fields.bits.weighted_pred_flag && (slice_param->slice_type == 0)) || ((pic_param->pic_fields.bits.weighted_bipred_idc == 1) && (slice_param->slice_type == 1))) { /* XXXX: add pred_weight_table() */ } /* dec_ref_pic_marking() */ if (slice_param->slice_type == 0 || slice_param->slice_type == 2) { if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) { /* no_output_of_prior_pics_flag = 0 */ WRITE_UINT32 (bs, no_output_of_prior_pics_flag, 1); /* long_term_reference_flag = 0 */ WRITE_UINT32 (bs, long_term_reference_flag, 1); } else { /* only sliding_window reference picture marking mode is supported */ /* adpative_ref_pic_marking_mode_flag = 0 */ WRITE_UINT32 (bs, adaptive_ref_pic_marking_mode_flag, 1); } } /* cabac_init_idc */ if (pic_param->pic_fields.bits.entropy_coding_mode_flag && slice_param->slice_type != 2) WRITE_UE (bs, slice_param->cabac_init_idc); /*slice_qp_delta */ WRITE_SE (bs, slice_param->slice_qp_delta); /* XXX: only supporting I, P and B type slices */ /* no sp_for_switch_flag and no slice_qs_delta */ if (pic_param->pic_fields.bits.deblocking_filter_control_present_flag) { /* disable_deblocking_filter_idc */ WRITE_UE (bs, slice_param->disable_deblocking_filter_idc); if (slice_param->disable_deblocking_filter_idc != 1) { WRITE_SE (bs, slice_param->slice_alpha_c0_offset_div2); WRITE_SE (bs, slice_param->slice_beta_offset_div2); } } /* XXX: unsupported arbitrary slice ordering (ASO) */ /* num_slic_groups_minus1 should be zero */ return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write Slice NAL unit"); return FALSE; } } static inline void _check_sps_pps_status (GstVaapiEncoderH264 * encoder, const guint8 * nal, guint32 size) { guint8 nal_type; G_GNUC_UNUSED gsize ret; /* FIXME */ gboolean has_subset_sps; g_assert (size); has_subset_sps = !encoder->is_mvc || (encoder->subset_sps_data != NULL); if (encoder->sps_data && encoder->pps_data && has_subset_sps) return; nal_type = nal[0] & 0x1F; switch (nal_type) { case GST_H264_NAL_SPS: encoder->sps_data = gst_buffer_new_allocate (NULL, size, NULL); ret = gst_buffer_fill (encoder->sps_data, 0, nal, size); g_assert (ret == size); break; case GST_H264_NAL_SUBSET_SPS: encoder->subset_sps_data = gst_buffer_new_allocate (NULL, size, NULL); ret = gst_buffer_fill (encoder->subset_sps_data, 0, nal, size); g_assert (ret == size); break; case GST_H264_NAL_PPS: encoder->pps_data = gst_buffer_new_allocate (NULL, size, NULL); ret = gst_buffer_fill (encoder->pps_data, 0, nal, size); g_assert (ret == size); break; default: break; } } /* Determines the largest supported profile by the underlying hardware */ static gboolean ensure_hw_profile_limits (GstVaapiEncoderH264 * encoder) { GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder); GArray *profiles; guint i, profile_idc, max_profile_idc; if (encoder->hw_max_profile_idc) return TRUE; profiles = gst_vaapi_display_get_encode_profiles (display); if (!profiles) return FALSE; max_profile_idc = 0; for (i = 0; i < profiles->len; i++) { const GstVaapiProfile profile = g_array_index (profiles, GstVaapiProfile, i); profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile); if (!profile_idc) continue; if (max_profile_idc < profile_idc) max_profile_idc = profile_idc; } g_array_unref (profiles); encoder->hw_max_profile_idc = max_profile_idc; return TRUE; } /* Derives the profile supported by the underlying hardware */ static gboolean ensure_hw_profile (GstVaapiEncoderH264 * encoder) { GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder); GstVaapiEntrypoint entrypoint = encoder->entrypoint; GstVaapiProfile profile, profiles[4]; guint i, num_profiles = 0; profiles[num_profiles++] = encoder->profile; switch (encoder->profile) { case GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE: profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_BASELINE; profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_MAIN; // fall-through case GST_VAAPI_PROFILE_H264_MAIN: profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_HIGH; break; default: break; } profile = GST_VAAPI_PROFILE_UNKNOWN; for (i = 0; i < num_profiles; i++) { if (gst_vaapi_display_has_encoder (display, profiles[i], entrypoint)) { profile = profiles[i]; break; } } if (profile == GST_VAAPI_PROFILE_UNKNOWN) goto error_unsupported_profile; GST_VAAPI_ENCODER_CAST (encoder)->profile = profile; return TRUE; /* ERRORS */ error_unsupported_profile: { GST_ERROR ("unsupported HW profile (0x%08x)", encoder->profile); return FALSE; } } /* Check target decoder constraints */ static gboolean ensure_profile_limits (GstVaapiEncoderH264 * encoder) { GstVaapiProfile profile; if (!encoder->max_profile_idc || encoder->profile_idc <= encoder->max_profile_idc) return TRUE; GST_WARNING ("lowering coding tools to meet target decoder constraints"); profile = GST_VAAPI_PROFILE_UNKNOWN; /* Try Main profile coding tools */ if (encoder->max_profile_idc < 100) { encoder->use_dct8x8 = FALSE; profile = GST_VAAPI_PROFILE_H264_MAIN; } /* Try Constrained Baseline profile coding tools */ if (encoder->max_profile_idc < 77) { encoder->num_bframes = 0; encoder->use_cabac = FALSE; profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE; } if (profile) { encoder->profile = profile; encoder->profile_idc = encoder->max_profile_idc; } return TRUE; } /* Derives the minimum profile from the active coding tools */ static gboolean ensure_profile (GstVaapiEncoderH264 * encoder) { GstVaapiProfile profile; /* Always start from "constrained-baseline" profile for maximum compatibility */ profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE; /* Main profile coding tools */ if (encoder->num_bframes > 0 || encoder->use_cabac) profile = GST_VAAPI_PROFILE_H264_MAIN; /* High profile coding tools */ if (encoder->use_dct8x8) profile = GST_VAAPI_PROFILE_H264_HIGH; /* MVC profiles coding tools */ if (encoder->num_views == 2) profile = GST_VAAPI_PROFILE_H264_STEREO_HIGH; else if (encoder->num_views > 2) profile = GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH; encoder->profile = profile; encoder->profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile); return TRUE; } /* Derives the level from the currently set limits */ static gboolean ensure_level (GstVaapiEncoderH264 * encoder) { const guint cpb_factor = h264_get_cpb_nal_factor (encoder->profile); const GstVaapiH264LevelLimits *limits_table; guint i, num_limits, PicSizeMbs, MaxDpbMbs, MaxMBPS; PicSizeMbs = encoder->mb_width * encoder->mb_height; MaxDpbMbs = PicSizeMbs * ((encoder->num_bframes) ? 2 : 1); MaxMBPS = gst_util_uint64_scale_int_ceil (PicSizeMbs, GST_VAAPI_ENCODER_FPS_N (encoder), GST_VAAPI_ENCODER_FPS_D (encoder)); limits_table = gst_vaapi_utils_h264_get_level_limits_table (&num_limits); for (i = 0; i < num_limits; i++) { const GstVaapiH264LevelLimits *const limits = &limits_table[i]; if (PicSizeMbs <= limits->MaxFS && MaxDpbMbs <= limits->MaxDpbMbs && MaxMBPS <= limits->MaxMBPS && (!encoder->bitrate_bits || encoder->bitrate_bits <= (limits->MaxBR * cpb_factor)) && (!encoder->cpb_length_bits || encoder->cpb_length_bits <= (limits->MaxCPB * cpb_factor))) break; } if (i == num_limits) goto error_unsupported_level; encoder->level = limits_table[i].level; encoder->level_idc = limits_table[i].level_idc; return TRUE; /* ERRORS */ error_unsupported_level: { GST_ERROR ("failed to find a suitable level matching codec config"); return FALSE; } } /* Enable "high-compression" tuning options */ static gboolean ensure_tuning_high_compression (GstVaapiEncoderH264 * encoder) { guint8 profile_idc; if (!ensure_hw_profile_limits (encoder)) return FALSE; profile_idc = encoder->hw_max_profile_idc; if (encoder->max_profile_idc && encoder->max_profile_idc < profile_idc) profile_idc = encoder->max_profile_idc; /* Tuning options to enable Main profile */ if (profile_idc >= 77 && profile_idc != 88) { encoder->use_cabac = TRUE; if (!encoder->num_bframes) encoder->num_bframes = 1; } /* Tuning options to enable High profile */ if (profile_idc >= 100) { encoder->use_dct8x8 = TRUE; } return TRUE; } /* Ensure tuning options */ static gboolean ensure_tuning (GstVaapiEncoderH264 * encoder) { gboolean success; switch (GST_VAAPI_ENCODER_TUNE (encoder)) { case GST_VAAPI_ENCODER_TUNE_HIGH_COMPRESSION: success = ensure_tuning_high_compression (encoder); break; case GST_VAAPI_ENCODER_TUNE_LOW_POWER: /* Set low-power encode entry point. If hardware doesn't have * support, it will fail in ensure_hw_profile() in later stage. * So not duplicating the profile/entrypont query mechanism * here as a part of optimization */ encoder->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE_LP; success = TRUE; break; default: success = TRUE; break; } return success; } /* Handle new GOP starts */ static void reset_gop_start (GstVaapiEncoderH264 * encoder) { GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[encoder->view_idx]; reorder_pool->frame_index = 1; reorder_pool->cur_frame_num = 0; reorder_pool->cur_present_index = 0; ++encoder->idr_num; } /* Marks the supplied picture as a B-frame */ static void set_b_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder) { GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[encoder->view_idx]; g_assert (pic && encoder); g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE); pic->type = GST_VAAPI_PICTURE_TYPE_B; pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num); } /* Marks the supplied picture as a P-frame */ static void set_p_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder) { GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[encoder->view_idx]; g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE); pic->type = GST_VAAPI_PICTURE_TYPE_P; pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num); } /* Marks the supplied picture as an I-frame */ static void set_i_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder) { GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[encoder->view_idx]; g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE); pic->type = GST_VAAPI_PICTURE_TYPE_I; pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num); g_assert (pic->frame); GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame); } /* Marks the supplied picture as an IDR frame */ static void set_idr_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder) { g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE); pic->type = GST_VAAPI_PICTURE_TYPE_I; pic->frame_num = 0; pic->poc = 0; GST_VAAPI_ENC_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_IDR); g_assert (pic->frame); GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame); } /* Marks the supplied picture a a key-frame */ static void set_key_frame (GstVaapiEncPicture * picture, GstVaapiEncoderH264 * encoder, gboolean is_idr) { if (is_idr) { reset_gop_start (encoder); set_idr_frame (picture, encoder); } else set_i_frame (picture, encoder); } /* Fills in VA HRD parameters */ static void fill_hrd_params (GstVaapiEncoderH264 * encoder, VAEncMiscParameterHRD * hrd) { if (encoder->bitrate_bits > 0) { hrd->buffer_size = encoder->cpb_length_bits; hrd->initial_buffer_fullness = hrd->buffer_size / 2; } else { hrd->buffer_size = 0; hrd->initial_buffer_fullness = 0; } } /* Adds the supplied sequence header (SPS) to the list of packed headers to pass down as-is to the encoder */ static gboolean add_packed_sequence_header (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence) { GstVaapiEncPackedHeader *packed_seq; GstBitWriter bs; VAEncPackedHeaderParameterBuffer packed_seq_param = { 0 }; const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param; GstVaapiProfile profile = encoder->profile; VAEncMiscParameterHRD hrd_params; guint32 data_bit_size; guint8 *data; fill_hrd_params (encoder, &hrd_params); gst_bit_writer_init (&bs, 128 * 8); WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SPS); /* Set High profile for encoding the MVC base view. Otherwise, some traditional decoder cannot recognize MVC profile streams with only the base view in there */ if (profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH || profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH) profile = GST_VAAPI_PROFILE_H264_HIGH; bs_write_sps (&bs, seq_param, profile, &hrd_params); g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs); data = GST_BIT_WRITER_DATA (&bs); packed_seq_param.type = VAEncPackedHeaderSequence; packed_seq_param.bit_length = data_bit_size; packed_seq_param.has_emulation_bytes = 0; packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder), &packed_seq_param, sizeof (packed_seq_param), data, (data_bit_size + 7) / 8); g_assert (packed_seq); gst_vaapi_enc_picture_add_packed_header (picture, packed_seq); gst_vaapi_codec_object_replace (&packed_seq, NULL); /* store sps data */ _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4); gst_bit_writer_clear (&bs, TRUE); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write SPS NAL unit"); gst_bit_writer_clear (&bs, TRUE); return FALSE; } } static gboolean add_packed_sequence_header_mvc (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence) { GstVaapiEncPackedHeader *packed_seq; GstBitWriter bs; VAEncPackedHeaderParameterBuffer packed_header_param_buffer = { 0 }; const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param; VAEncMiscParameterHRD hrd_params; guint32 data_bit_size; guint8 *data; fill_hrd_params (encoder, &hrd_params); /* non-base layer, pack one subset sps */ gst_bit_writer_init (&bs, 128 * 8); WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SUBSET_SPS); bs_write_subset_sps (&bs, seq_param, encoder->profile, encoder->num_views, encoder->view_ids, &hrd_params); g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs); data = GST_BIT_WRITER_DATA (&bs); packed_header_param_buffer.type = VAEncPackedHeaderSequence; packed_header_param_buffer.bit_length = data_bit_size; packed_header_param_buffer.has_emulation_bytes = 0; packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder), &packed_header_param_buffer, sizeof (packed_header_param_buffer), data, (data_bit_size + 7) / 8); g_assert (packed_seq); gst_vaapi_enc_picture_add_packed_header (picture, packed_seq); gst_vaapi_mini_object_replace ((GstVaapiMiniObject **) & packed_seq, NULL); /* store subset sps data */ _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4); gst_bit_writer_clear (&bs, TRUE); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write SPS NAL unit"); gst_bit_writer_clear (&bs, TRUE); return FALSE; } } /* Adds the supplied picture header (PPS) to the list of packed headers to pass down as-is to the encoder */ static gboolean add_packed_picture_header (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { GstVaapiEncPackedHeader *packed_pic; GstBitWriter bs; VAEncPackedHeaderParameterBuffer packed_pic_param = { 0 }; const VAEncPictureParameterBufferH264 *const pic_param = picture->param; guint32 data_bit_size; guint8 *data; gst_bit_writer_init (&bs, 128 * 8); WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_PPS); bs_write_pps (&bs, pic_param, encoder->profile); g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs); data = GST_BIT_WRITER_DATA (&bs); packed_pic_param.type = VAEncPackedHeaderPicture; packed_pic_param.bit_length = data_bit_size; packed_pic_param.has_emulation_bytes = 0; packed_pic = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder), &packed_pic_param, sizeof (packed_pic_param), data, (data_bit_size + 7) / 8); g_assert (packed_pic); gst_vaapi_enc_picture_add_packed_header (picture, packed_pic); gst_vaapi_codec_object_replace (&packed_pic, NULL); /* store pps data */ _check_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4); gst_bit_writer_clear (&bs, TRUE); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write PPS NAL unit"); gst_bit_writer_clear (&bs, TRUE); return FALSE; } } static gboolean add_packed_sei_header (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiH264SeiPayloadType payloadtype) { GstVaapiEncPackedHeader *packed_sei; GstBitWriter bs, bs_buf_period, bs_pic_timing; VAEncPackedHeaderParameterBuffer packed_sei_param = { 0 }; guint32 data_bit_size; guint8 buf_period_payload_size = 0, pic_timing_payload_size = 0; guint8 *data, *buf_period_payload = NULL, *pic_timing_payload = NULL; gboolean need_buf_period, need_pic_timing; gst_bit_writer_init (&bs_buf_period, 128 * 8); gst_bit_writer_init (&bs_pic_timing, 128 * 8); gst_bit_writer_init (&bs, 128 * 8); need_buf_period = GST_VAAPI_H264_SEI_BUF_PERIOD & payloadtype; need_pic_timing = GST_VAAPI_H264_SEI_PIC_TIMING & payloadtype; if (need_buf_period) { /* Write a Buffering Period SEI message */ bs_write_sei_buf_period (&bs_buf_period, encoder, picture); /* Write byte alignment bits */ if (GST_BIT_WRITER_BIT_SIZE (&bs_buf_period) % 8 != 0) bs_write_trailing_bits (&bs_buf_period); buf_period_payload_size = (GST_BIT_WRITER_BIT_SIZE (&bs_buf_period)) / 8; buf_period_payload = GST_BIT_WRITER_DATA (&bs_buf_period); } if (need_pic_timing) { /* Write a Picture Timing SEI message */ if (GST_VAAPI_H264_SEI_PIC_TIMING & payloadtype) bs_write_sei_pic_timing (&bs_pic_timing, encoder, picture); /* Write byte alignment bits */ if (GST_BIT_WRITER_BIT_SIZE (&bs_pic_timing) % 8 != 0) bs_write_trailing_bits (&bs_pic_timing); pic_timing_payload_size = (GST_BIT_WRITER_BIT_SIZE (&bs_pic_timing)) / 8; pic_timing_payload = GST_BIT_WRITER_DATA (&bs_pic_timing); } /* Write the SEI message */ WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_NONE, GST_H264_NAL_SEI); if (need_buf_period) { WRITE_UINT32 (&bs, GST_H264_SEI_BUF_PERIOD, 8); WRITE_UINT32 (&bs, buf_period_payload_size, 8); /* Add buffering period sei message */ gst_bit_writer_put_bytes (&bs, buf_period_payload, buf_period_payload_size); } if (need_pic_timing) { WRITE_UINT32 (&bs, GST_H264_SEI_PIC_TIMING, 8); WRITE_UINT32 (&bs, pic_timing_payload_size, 8); /* Add picture timing sei message */ gst_bit_writer_put_bytes (&bs, pic_timing_payload, pic_timing_payload_size); } /* rbsp_trailing_bits */ bs_write_trailing_bits (&bs); g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs); data = GST_BIT_WRITER_DATA (&bs); packed_sei_param.type = VAEncPackedHeaderH264_SEI; packed_sei_param.bit_length = data_bit_size; packed_sei_param.has_emulation_bytes = 0; packed_sei = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder), &packed_sei_param, sizeof (packed_sei_param), data, (data_bit_size + 7) / 8); g_assert (packed_sei); gst_vaapi_enc_picture_add_packed_header (picture, packed_sei); gst_vaapi_codec_object_replace (&packed_sei, NULL); gst_bit_writer_clear (&bs_buf_period, TRUE); gst_bit_writer_clear (&bs_pic_timing, TRUE); gst_bit_writer_clear (&bs, TRUE); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write SEI NAL unit"); gst_bit_writer_clear (&bs_buf_period, TRUE); gst_bit_writer_clear (&bs_pic_timing, TRUE); gst_bit_writer_clear (&bs, TRUE); return FALSE; } } static gboolean get_nal_hdr_attributes (GstVaapiEncPicture * picture, guint8 * nal_ref_idc, guint8 * nal_unit_type) { switch (picture->type) { case GST_VAAPI_PICTURE_TYPE_I: *nal_ref_idc = GST_H264_NAL_REF_IDC_HIGH; if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) *nal_unit_type = GST_H264_NAL_SLICE_IDR; else *nal_unit_type = GST_H264_NAL_SLICE; break; case GST_VAAPI_PICTURE_TYPE_P: *nal_ref_idc = GST_H264_NAL_REF_IDC_MEDIUM; *nal_unit_type = GST_H264_NAL_SLICE; break; case GST_VAAPI_PICTURE_TYPE_B: *nal_ref_idc = GST_H264_NAL_REF_IDC_NONE; *nal_unit_type = GST_H264_NAL_SLICE; break; default: return FALSE; } return TRUE; } /* Adds the supplied prefix nal header to the list of packed headers to pass down as-is to the encoder */ static gboolean add_packed_prefix_nal_header (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiEncSlice * slice) { GstVaapiEncPackedHeader *packed_prefix_nal; GstBitWriter bs; VAEncPackedHeaderParameterBuffer packed_prefix_nal_param = { 0 }; guint32 data_bit_size; guint8 *data; guint8 nal_ref_idc, nal_unit_type; gst_bit_writer_init (&bs, 128 * 8); WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type)) goto bs_error; nal_unit_type = GST_H264_NAL_PREFIX_UNIT; bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type); bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx); g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs); data = GST_BIT_WRITER_DATA (&bs); packed_prefix_nal_param.type = VAEncPackedHeaderRawData; packed_prefix_nal_param.bit_length = data_bit_size; packed_prefix_nal_param.has_emulation_bytes = 0; packed_prefix_nal = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder), &packed_prefix_nal_param, sizeof (packed_prefix_nal_param), data, (data_bit_size + 7) / 8); g_assert (packed_prefix_nal); gst_vaapi_enc_slice_add_packed_header (slice, packed_prefix_nal); gst_vaapi_codec_object_replace (&packed_prefix_nal, NULL); gst_bit_writer_clear (&bs, TRUE); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write Prefix NAL unit header"); gst_bit_writer_clear (&bs, TRUE); return FALSE; } } /* Adds the supplied slice header to the list of packed headers to pass down as-is to the encoder */ static gboolean add_packed_slice_header (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiEncSlice * slice) { GstVaapiEncPackedHeader *packed_slice; GstBitWriter bs; VAEncPackedHeaderParameterBuffer packed_slice_param = { 0 }; const VAEncSliceParameterBufferH264 *const slice_param = slice->param; guint32 data_bit_size; guint8 *data; guint8 nal_ref_idc, nal_unit_type; gst_bit_writer_init (&bs, 128 * 8); WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type)) goto bs_error; /* pack nal_unit_header_mvc_extension() for the non base view */ if (encoder->is_mvc && encoder->view_idx) { bs_write_nal_header (&bs, nal_ref_idc, GST_H264_NAL_SLICE_EXT); bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_ids[encoder->view_idx]); } else bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type); bs_write_slice (&bs, slice_param, encoder, picture); data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs); data = GST_BIT_WRITER_DATA (&bs); packed_slice_param.type = VAEncPackedHeaderSlice; packed_slice_param.bit_length = data_bit_size; packed_slice_param.has_emulation_bytes = 0; packed_slice = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder), &packed_slice_param, sizeof (packed_slice_param), data, (data_bit_size + 7) / 8); g_assert (packed_slice); gst_vaapi_enc_slice_add_packed_header (slice, packed_slice); gst_vaapi_codec_object_replace (&packed_slice, NULL); gst_bit_writer_clear (&bs, TRUE); return TRUE; /* ERRORS */ bs_error: { GST_WARNING ("failed to write Slice NAL unit header"); gst_bit_writer_clear (&bs, TRUE); return FALSE; } } /* Reference picture management */ static void reference_pic_free (GstVaapiEncoderH264 * encoder, GstVaapiEncoderH264Ref * ref) { if (!ref) return; if (ref->pic) gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), ref->pic); g_slice_free (GstVaapiEncoderH264Ref, ref); } static inline GstVaapiEncoderH264Ref * reference_pic_create (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface) { GstVaapiEncoderH264Ref *const ref = g_slice_new0 (GstVaapiEncoderH264Ref); ref->pic = surface; ref->frame_num = picture->frame_num; ref->poc = picture->poc; return ref; } static gboolean reference_list_update (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface) { GstVaapiEncoderH264Ref *ref; GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[encoder->view_idx]; if (GST_VAAPI_PICTURE_TYPE_B == picture->type) { gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), surface); return TRUE; } if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) { while (!g_queue_is_empty (&ref_pool->ref_list)) reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list)); } else if (g_queue_get_length (&ref_pool->ref_list) >= ref_pool->max_ref_frames) { reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list)); } ref = reference_pic_create (encoder, picture, surface); g_queue_push_tail (&ref_pool->ref_list, ref); g_assert (g_queue_get_length (&ref_pool->ref_list) <= ref_pool->max_ref_frames); return TRUE; } static gboolean reference_list_init (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiEncoderH264Ref ** reflist_0, guint * reflist_0_count, GstVaapiEncoderH264Ref ** reflist_1, guint * reflist_1_count) { GstVaapiEncoderH264Ref *tmp; GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[encoder->view_idx]; GList *iter, *list_0_start = NULL, *list_1_start = NULL; guint count; *reflist_0_count = 0; *reflist_1_count = 0; if (picture->type == GST_VAAPI_PICTURE_TYPE_I) return TRUE; iter = g_queue_peek_tail_link (&ref_pool->ref_list); for (; iter; iter = g_list_previous (iter)) { tmp = (GstVaapiEncoderH264Ref *) iter->data; g_assert (tmp && tmp->poc != picture->poc); if (_poc_greater_than (picture->poc, tmp->poc, encoder->max_pic_order_cnt)) { list_0_start = iter; list_1_start = g_list_next (iter); break; } } /* order reflist_0 */ g_assert (list_0_start); iter = list_0_start; count = 0; for (; iter; iter = g_list_previous (iter)) { reflist_0[count] = (GstVaapiEncoderH264Ref *) iter->data; ++count; } *reflist_0_count = count; if (picture->type != GST_VAAPI_PICTURE_TYPE_B) return TRUE; /* order reflist_1 */ count = 0; iter = list_1_start; for (; iter; iter = g_list_next (iter)) { reflist_1[count] = (GstVaapiEncoderH264Ref *) iter->data; ++count; } *reflist_1_count = count; return TRUE; } /* Fills in VA sequence parameter buffer */ static gboolean fill_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncSequence * sequence) { VAEncSequenceParameterBufferH264 *const seq_param = sequence->param; GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[encoder->view_idx]; memset (seq_param, 0, sizeof (VAEncSequenceParameterBufferH264)); seq_param->seq_parameter_set_id = encoder->view_idx; seq_param->level_idc = encoder->level_idc; seq_param->intra_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder); seq_param->intra_idr_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder); seq_param->ip_period = 1 + encoder->num_bframes; seq_param->ip_period = seq_param->intra_period > 1 ? (1 + encoder->num_bframes) : 0; seq_param->bits_per_second = encoder->bitrate_bits; seq_param->max_num_ref_frames = ref_pool->max_ref_frames; seq_param->picture_width_in_mbs = encoder->mb_width; seq_param->picture_height_in_mbs = encoder->mb_height; /*sequence field values */ seq_param->seq_fields.value = 0; seq_param->seq_fields.bits.chroma_format_idc = 1; seq_param->seq_fields.bits.frame_mbs_only_flag = 1; seq_param->seq_fields.bits.mb_adaptive_frame_field_flag = FALSE; seq_param->seq_fields.bits.seq_scaling_matrix_present_flag = FALSE; /* direct_8x8_inference_flag default false */ seq_param->seq_fields.bits.direct_8x8_inference_flag = FALSE; g_assert (encoder->log2_max_frame_num >= 4); seq_param->seq_fields.bits.log2_max_frame_num_minus4 = encoder->log2_max_frame_num - 4; /* picture order count */ encoder->pic_order_cnt_type = seq_param->seq_fields.bits.pic_order_cnt_type = 0; g_assert (encoder->log2_max_pic_order_cnt >= 4); seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 = encoder->log2_max_pic_order_cnt - 4; seq_param->bit_depth_luma_minus8 = 0; seq_param->bit_depth_chroma_minus8 = 0; /* not used if pic_order_cnt_type == 0 */ if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) { encoder->delta_pic_order_always_zero_flag = seq_param->seq_fields.bits.delta_pic_order_always_zero_flag = TRUE; seq_param->num_ref_frames_in_pic_order_cnt_cycle = 0; seq_param->offset_for_non_ref_pic = 0; seq_param->offset_for_top_to_bottom_field = 0; memset (seq_param->offset_for_ref_frame, 0, sizeof (seq_param->offset_for_ref_frame)); } /* frame_cropping_flag */ if ((GST_VAAPI_ENCODER_WIDTH (encoder) & 15) || (GST_VAAPI_ENCODER_HEIGHT (encoder) & 15)) { static const guint SubWidthC[] = { 1, 2, 2, 1 }; static const guint SubHeightC[] = { 1, 2, 1, 1 }; const guint CropUnitX = SubWidthC[seq_param->seq_fields.bits.chroma_format_idc]; const guint CropUnitY = SubHeightC[seq_param->seq_fields.bits.chroma_format_idc] * (2 - seq_param->seq_fields.bits.frame_mbs_only_flag); seq_param->frame_cropping_flag = 1; seq_param->frame_crop_left_offset = 0; seq_param->frame_crop_right_offset = (16 * encoder->mb_width - GST_VAAPI_ENCODER_WIDTH (encoder)) / CropUnitX; seq_param->frame_crop_top_offset = 0; seq_param->frame_crop_bottom_offset = (16 * encoder->mb_height - GST_VAAPI_ENCODER_HEIGHT (encoder)) / CropUnitY; } /* VUI parameters are always set, at least for timing_info (framerate) */ seq_param->vui_parameters_present_flag = TRUE; if (seq_param->vui_parameters_present_flag) { seq_param->vui_fields.bits.aspect_ratio_info_present_flag = TRUE; if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) { const GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder); seq_param->aspect_ratio_idc = 0xff; seq_param->sar_width = GST_VIDEO_INFO_PAR_N (vip); seq_param->sar_height = GST_VIDEO_INFO_PAR_D (vip); } seq_param->vui_fields.bits.bitstream_restriction_flag = FALSE; /* if vui_parameters_present_flag is TRUE and sps data belongs to * subset sps, timing_info_preset_flag should be zero (H.7.4.2.1.1) */ seq_param->vui_fields.bits.timing_info_present_flag = !encoder->view_idx; if (seq_param->vui_fields.bits.timing_info_present_flag) { seq_param->num_units_in_tick = GST_VAAPI_ENCODER_FPS_D (encoder); seq_param->time_scale = GST_VAAPI_ENCODER_FPS_N (encoder) * 2; } } return TRUE; } /* Fills in VA picture parameter buffer */ static gboolean fill_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiCodedBuffer * codedbuf, GstVaapiSurfaceProxy * surface) { VAEncPictureParameterBufferH264 *const pic_param = picture->param; GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[encoder->view_idx]; GstVaapiEncoderH264Ref *ref_pic; GList *reflist; guint i; memset (pic_param, 0, sizeof (VAEncPictureParameterBufferH264)); /* reference list, */ pic_param->CurrPic.picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (surface); pic_param->CurrPic.TopFieldOrderCnt = picture->poc; i = 0; if (picture->type != GST_VAAPI_PICTURE_TYPE_I) { for (reflist = g_queue_peek_head_link (&ref_pool->ref_list); reflist; reflist = g_list_next (reflist)) { ref_pic = reflist->data; g_assert (ref_pic && ref_pic->pic && GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic) != VA_INVALID_ID); pic_param->ReferenceFrames[i].picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic); ++i; } g_assert (i <= 16 && i <= ref_pool->max_ref_frames); } for (; i < 16; ++i) { pic_param->ReferenceFrames[i].picture_id = VA_INVALID_ID; } pic_param->coded_buf = GST_VAAPI_OBJECT_ID (codedbuf); pic_param->pic_parameter_set_id = encoder->view_idx; pic_param->seq_parameter_set_id = encoder->view_idx ? 1 : 0; pic_param->last_picture = 0; /* means last encoding picture */ pic_param->frame_num = picture->frame_num; pic_param->pic_init_qp = encoder->init_qp; pic_param->num_ref_idx_l0_active_minus1 = (ref_pool->max_reflist0_count ? (ref_pool->max_reflist0_count - 1) : 0); pic_param->num_ref_idx_l1_active_minus1 = (ref_pool->max_reflist1_count ? (ref_pool->max_reflist1_count - 1) : 0); pic_param->chroma_qp_index_offset = 0; pic_param->second_chroma_qp_index_offset = 0; /* set picture fields */ pic_param->pic_fields.value = 0; pic_param->pic_fields.bits.idr_pic_flag = GST_VAAPI_ENC_PICTURE_IS_IDR (picture); pic_param->pic_fields.bits.reference_pic_flag = (picture->type != GST_VAAPI_PICTURE_TYPE_B); pic_param->pic_fields.bits.entropy_coding_mode_flag = encoder->use_cabac; pic_param->pic_fields.bits.weighted_pred_flag = FALSE; pic_param->pic_fields.bits.weighted_bipred_idc = 0; pic_param->pic_fields.bits.constrained_intra_pred_flag = 0; pic_param->pic_fields.bits.transform_8x8_mode_flag = encoder->use_dct8x8; /* enable debloking */ pic_param->pic_fields.bits.deblocking_filter_control_present_flag = TRUE; pic_param->pic_fields.bits.redundant_pic_cnt_present_flag = FALSE; /* bottom_field_pic_order_in_frame_present_flag */ pic_param->pic_fields.bits.pic_order_present_flag = FALSE; pic_param->pic_fields.bits.pic_scaling_matrix_present_flag = FALSE; return TRUE; } /* Adds slice headers to picture */ static gboolean add_slice_headers (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiEncoderH264Ref ** reflist_0, guint reflist_0_count, GstVaapiEncoderH264Ref ** reflist_1, guint reflist_1_count) { VAEncSliceParameterBufferH264 *slice_param; GstVaapiEncSlice *slice; guint slice_of_mbs, slice_mod_mbs, cur_slice_mbs; guint mb_size; guint last_mb_index; guint i_slice, i_ref; g_assert (picture); mb_size = encoder->mb_width * encoder->mb_height; g_assert (encoder->num_slices && encoder->num_slices < mb_size); slice_of_mbs = mb_size / encoder->num_slices; slice_mod_mbs = mb_size % encoder->num_slices; last_mb_index = 0; for (i_slice = 0; i_slice < encoder->num_slices; ++i_slice) { cur_slice_mbs = slice_of_mbs; if (slice_mod_mbs) { ++cur_slice_mbs; --slice_mod_mbs; } slice = GST_VAAPI_ENC_SLICE_NEW (H264, encoder); g_assert (slice && slice->param_id != VA_INVALID_ID); slice_param = slice->param; memset (slice_param, 0, sizeof (VAEncSliceParameterBufferH264)); slice_param->macroblock_address = last_mb_index; slice_param->num_macroblocks = cur_slice_mbs; slice_param->macroblock_info = VA_INVALID_ID; slice_param->slice_type = h264_get_slice_type (picture->type); g_assert ((gint8) slice_param->slice_type != -1); slice_param->pic_parameter_set_id = encoder->view_idx; slice_param->idr_pic_id = encoder->idr_num; slice_param->pic_order_cnt_lsb = picture->poc; /* not used if pic_order_cnt_type = 0 */ slice_param->delta_pic_order_cnt_bottom = 0; memset (slice_param->delta_pic_order_cnt, 0, sizeof (slice_param->delta_pic_order_cnt)); /* only works for B frames */ slice_param->direct_spatial_mv_pred_flag = FALSE; /* default equal to picture parameters */ slice_param->num_ref_idx_active_override_flag = FALSE; if (picture->type != GST_VAAPI_PICTURE_TYPE_I && reflist_0_count > 0) slice_param->num_ref_idx_l0_active_minus1 = reflist_0_count - 1; else slice_param->num_ref_idx_l0_active_minus1 = 0; if (picture->type == GST_VAAPI_PICTURE_TYPE_B && reflist_1_count > 0) slice_param->num_ref_idx_l1_active_minus1 = reflist_1_count - 1; else slice_param->num_ref_idx_l1_active_minus1 = 0; g_assert (slice_param->num_ref_idx_l0_active_minus1 == 0); g_assert (slice_param->num_ref_idx_l1_active_minus1 == 0); i_ref = 0; if (picture->type != GST_VAAPI_PICTURE_TYPE_I) { for (; i_ref < reflist_0_count; ++i_ref) { slice_param->RefPicList0[i_ref].picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_0[i_ref]->pic); } g_assert (i_ref == 1); } for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList0); ++i_ref) { slice_param->RefPicList0[i_ref].picture_id = VA_INVALID_SURFACE; } i_ref = 0; if (picture->type == GST_VAAPI_PICTURE_TYPE_B) { for (; i_ref < reflist_1_count; ++i_ref) { slice_param->RefPicList1[i_ref].picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_1[i_ref]->pic); } g_assert (i_ref == 1); } for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList1); ++i_ref) { slice_param->RefPicList1[i_ref].picture_id = VA_INVALID_SURFACE; } /* not used if pic_param.pic_fields.bits.weighted_pred_flag == FALSE */ slice_param->luma_log2_weight_denom = 0; slice_param->chroma_log2_weight_denom = 0; slice_param->luma_weight_l0_flag = FALSE; memset (slice_param->luma_weight_l0, 0, sizeof (slice_param->luma_weight_l0)); memset (slice_param->luma_offset_l0, 0, sizeof (slice_param->luma_offset_l0)); slice_param->chroma_weight_l0_flag = FALSE; memset (slice_param->chroma_weight_l0, 0, sizeof (slice_param->chroma_weight_l0)); memset (slice_param->chroma_offset_l0, 0, sizeof (slice_param->chroma_offset_l0)); slice_param->luma_weight_l1_flag = FALSE; memset (slice_param->luma_weight_l1, 0, sizeof (slice_param->luma_weight_l1)); memset (slice_param->luma_offset_l1, 0, sizeof (slice_param->luma_offset_l1)); slice_param->chroma_weight_l1_flag = FALSE; memset (slice_param->chroma_weight_l1, 0, sizeof (slice_param->chroma_weight_l1)); memset (slice_param->chroma_offset_l1, 0, sizeof (slice_param->chroma_offset_l1)); slice_param->cabac_init_idc = 0; slice_param->slice_qp_delta = encoder->init_qp - encoder->min_qp; if (slice_param->slice_qp_delta > 4) slice_param->slice_qp_delta = 4; slice_param->disable_deblocking_filter_idc = 0; slice_param->slice_alpha_c0_offset_div2 = 2; slice_param->slice_beta_offset_div2 = 2; /* set calculation for next slice */ last_mb_index += cur_slice_mbs; /* add packed Prefix NAL unit before each Coded slice NAL in base view */ if (encoder->is_mvc && !encoder->view_idx && (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_RAW_DATA) && !add_packed_prefix_nal_header (encoder, picture, slice)) goto error_create_packed_prefix_nal_hdr; if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_SLICE) && !add_packed_slice_header (encoder, picture, slice)) goto error_create_packed_slice_hdr; gst_vaapi_enc_picture_add_slice (picture, slice); gst_vaapi_codec_object_replace (&slice, NULL); } g_assert (last_mb_index == mb_size); return TRUE; error_create_packed_slice_hdr: { GST_ERROR ("failed to create packed slice header buffer"); gst_vaapi_codec_object_replace (&slice, NULL); return FALSE; } error_create_packed_prefix_nal_hdr: { GST_ERROR ("failed to create packed prefix nal header buffer"); gst_vaapi_codec_object_replace (&slice, NULL); return FALSE; } } /* Generates and submits SPS header accordingly into the bitstream */ static gboolean ensure_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { GstVaapiEncSequence *sequence = NULL; /* submit an SPS header before every new I-frame, if codec config changed */ if (!encoder->config_changed || picture->type != GST_VAAPI_PICTURE_TYPE_I) return TRUE; sequence = GST_VAAPI_ENC_SEQUENCE_NEW (H264, encoder); if (!sequence || !fill_sequence (encoder, sequence)) goto error_create_seq_param; /* add subset sps for non-base view and sps for base view */ if (encoder->is_mvc && encoder->view_idx) { if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_SEQUENCE) && !add_packed_sequence_header_mvc (encoder, picture, sequence)) goto error_create_packed_seq_hdr; } else { if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_SEQUENCE) && !add_packed_sequence_header (encoder, picture, sequence)) goto error_create_packed_seq_hdr; } if (sequence) { gst_vaapi_enc_picture_set_sequence (picture, sequence); gst_vaapi_codec_object_replace (&sequence, NULL); } if (!encoder->is_mvc || encoder->view_idx > 0) encoder->config_changed = FALSE; return TRUE; /* ERRORS */ error_create_seq_param: { GST_ERROR ("failed to create sequence parameter buffer (SPS)"); gst_vaapi_codec_object_replace (&sequence, NULL); return FALSE; } error_create_packed_seq_hdr: { GST_ERROR ("failed to create packed sequence header buffer"); gst_vaapi_codec_object_replace (&sequence, NULL); return FALSE; } } /* Generates additional control parameters */ static gboolean ensure_misc_params (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { GstVaapiEncMiscParam *misc = NULL; VAEncMiscParameterRateControl *rate_control; /* HRD params */ misc = GST_VAAPI_ENC_MISC_PARAM_NEW (HRD, encoder); g_assert (misc); if (!misc) return FALSE; fill_hrd_params (encoder, misc->data); gst_vaapi_enc_picture_add_misc_param (picture, misc); gst_vaapi_codec_object_replace (&misc, NULL); /* RateControl params */ if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CBR || GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_VBR) { misc = GST_VAAPI_ENC_MISC_PARAM_NEW (RateControl, encoder); g_assert (misc); if (!misc) return FALSE; rate_control = misc->data; memset (rate_control, 0, sizeof (VAEncMiscParameterRateControl)); rate_control->bits_per_second = encoder->bitrate_bits; rate_control->target_percentage = 70; rate_control->window_size = encoder->cpb_length; rate_control->initial_qp = encoder->init_qp; rate_control->min_qp = encoder->min_qp; rate_control->basic_unit_size = 0; gst_vaapi_enc_picture_add_misc_param (picture, misc); gst_vaapi_codec_object_replace (&misc, NULL); if (!encoder->view_idx) { if ((GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) && (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_MISC) && !add_packed_sei_header (encoder, picture, GST_VAAPI_H264_SEI_BUF_PERIOD | GST_VAAPI_H264_SEI_PIC_TIMING)) goto error_create_packed_sei_hdr; else if (!GST_VAAPI_ENC_PICTURE_IS_IDR (picture) && (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_MISC) && !add_packed_sei_header (encoder, picture, GST_VAAPI_H264_SEI_PIC_TIMING)) goto error_create_packed_sei_hdr; } } return TRUE; error_create_packed_sei_hdr: { GST_ERROR ("failed to create packed SEI header"); return FALSE; } } /* Generates and submits PPS header accordingly into the bitstream */ static gboolean ensure_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf_proxy, GstVaapiSurfaceProxy * surface) { GstVaapiCodedBuffer *const codedbuf = GST_VAAPI_CODED_BUFFER_PROXY_BUFFER (codedbuf_proxy); gboolean res = FALSE; res = fill_picture (encoder, picture, codedbuf, surface); if (!res) return FALSE; if (picture->type == GST_VAAPI_PICTURE_TYPE_I && (GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VA_ENC_PACKED_HEADER_PICTURE) && !add_packed_picture_header (encoder, picture)) { GST_ERROR ("set picture packed header failed"); return FALSE; } return TRUE; } /* Generates slice headers */ static gboolean ensure_slices (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture) { GstVaapiEncoderH264Ref *reflist_0[16]; GstVaapiEncoderH264Ref *reflist_1[16]; GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[encoder->view_idx]; guint reflist_0_count = 0, reflist_1_count = 0; g_assert (picture); if (picture->type != GST_VAAPI_PICTURE_TYPE_I && !reference_list_init (encoder, picture, reflist_0, &reflist_0_count, reflist_1, &reflist_1_count)) { GST_ERROR ("reference list reorder failed"); return FALSE; } g_assert (reflist_0_count + reflist_1_count <= ref_pool->max_ref_frames); if (reflist_0_count > ref_pool->max_reflist0_count) reflist_0_count = ref_pool->max_reflist0_count; if (reflist_1_count > ref_pool->max_reflist1_count) reflist_1_count = ref_pool->max_reflist1_count; if (!add_slice_headers (encoder, picture, reflist_0, reflist_0_count, reflist_1, reflist_1_count)) return FALSE; return TRUE; } /* Normalizes bitrate (and CPB size) for HRD conformance */ static void ensure_bitrate_hrd (GstVaapiEncoderH264 * encoder) { GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder); guint bitrate, cpb_size; if (!base_encoder->bitrate) { encoder->bitrate_bits = 0; return; } /* Round down bitrate. This is a hard limit mandated by the user */ g_assert (SX_BITRATE >= 6); bitrate = (base_encoder->bitrate * 1000) & ~((1U << SX_BITRATE) - 1); if (bitrate != encoder->bitrate_bits) { GST_DEBUG ("HRD bitrate: %u bits/sec", bitrate); encoder->bitrate_bits = bitrate; encoder->config_changed = TRUE; } /* Round up CPB size. This is an HRD compliance detail */ g_assert (SX_CPB_SIZE >= 4); cpb_size = gst_util_uint64_scale (bitrate, encoder->cpb_length, 1000) & ~((1U << SX_CPB_SIZE) - 1); if (cpb_size != encoder->cpb_length_bits) { GST_DEBUG ("HRD CPB size: %u bits", cpb_size); encoder->cpb_length_bits = cpb_size; encoder->config_changed = TRUE; } } /* Estimates a good enough bitrate if none was supplied */ static void ensure_bitrate (GstVaapiEncoderH264 * encoder) { GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder); /* Default compression: 48 bits per macroblock in "high-compression" mode */ switch (GST_VAAPI_ENCODER_RATE_CONTROL (encoder)) { case GST_VAAPI_RATECONTROL_CBR: case GST_VAAPI_RATECONTROL_VBR: case GST_VAAPI_RATECONTROL_VBR_CONSTRAINED: if (!base_encoder->bitrate) { /* According to the literature and testing, CABAC entropy coding mode could provide for +10% to +18% improvement in general, thus estimating +15% here ; and using adaptive 8x8 transforms in I-frames could bring up to +10% improvement. */ guint bits_per_mb = 48; guint64 factor; if (!encoder->use_cabac) bits_per_mb += (bits_per_mb * 15) / 100; if (!encoder->use_dct8x8) bits_per_mb += (bits_per_mb * 10) / 100; factor = encoder->mb_width * encoder->mb_height * bits_per_mb; base_encoder->bitrate = gst_util_uint64_scale (factor, GST_VAAPI_ENCODER_FPS_N (encoder), GST_VAAPI_ENCODER_FPS_D (encoder)) / 1000; GST_INFO ("target bitrate computed to %u kbps", base_encoder->bitrate); } break; default: base_encoder->bitrate = 0; break; } ensure_bitrate_hrd (encoder); } /* Constructs profile and level information based on user-defined limits */ static GstVaapiEncoderStatus ensure_profile_and_level (GstVaapiEncoderH264 * encoder) { const GstVaapiProfile profile = encoder->profile; const GstVaapiLevelH264 level = encoder->level; if (!ensure_tuning (encoder)) GST_WARNING ("Failed to set some of the tuning option as expected! "); if (!ensure_profile (encoder) || !ensure_profile_limits (encoder)) return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE; /* Check HW constraints */ if (!ensure_hw_profile_limits (encoder)) return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE; if (encoder->profile_idc > encoder->hw_max_profile_idc) return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE; /* Ensure bitrate if not set already and derive the right level to use */ ensure_bitrate (encoder); if (!ensure_level (encoder)) return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED; if (encoder->profile != profile || encoder->level != level) { GST_DEBUG ("selected %s profile at level %s", gst_vaapi_utils_h264_get_profile_string (encoder->profile), gst_vaapi_utils_h264_get_level_string (encoder->level)); encoder->config_changed = TRUE; } return GST_VAAPI_ENCODER_STATUS_SUCCESS; } static void reset_properties (GstVaapiEncoderH264 * encoder) { GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder); guint mb_size, i; if (encoder->idr_period < base_encoder->keyframe_period) encoder->idr_period = base_encoder->keyframe_period; if (encoder->idr_period > MAX_IDR_PERIOD) encoder->idr_period = MAX_IDR_PERIOD; if (encoder->min_qp > encoder->init_qp || (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP && encoder->min_qp < encoder->init_qp)) encoder->min_qp = encoder->init_qp; mb_size = encoder->mb_width * encoder->mb_height; if (encoder->num_slices > (mb_size + 1) / 2) encoder->num_slices = (mb_size + 1) / 2; g_assert (encoder->num_slices); if (encoder->num_bframes > (base_encoder->keyframe_period + 1) / 2) encoder->num_bframes = (base_encoder->keyframe_period + 1) / 2; /* Workaround : vaapi-intel-driver doesn't have support for * B-frame encode when utilizing low-power encode hardware block. * So Disabling b-frame encoding in low-pwer encode. * * Fixme :We should query the VAConfigAttribEncMaxRefFrames * instead of blindly disabling b-frame support and set b/p frame count, * buffer pool size etc based on that.*/ if ((encoder->num_bframes > 0) && (encoder->entrypoint == GST_VAAPI_ENTRYPOINT_SLICE_ENCODE_LP)) { GST_WARNING ("Disabling b-frame since the driver doesn't supporting it in low-power encode"); encoder->num_bframes = 0; } if (encoder->num_bframes > 0 && GST_VAAPI_ENCODER_FPS_N (encoder) > 0) encoder->cts_offset = gst_util_uint64_scale (GST_SECOND, GST_VAAPI_ENCODER_FPS_D (encoder), GST_VAAPI_ENCODER_FPS_N (encoder)); else encoder->cts_offset = 0; /* init max_frame_num, max_poc */ encoder->log2_max_frame_num = h264_get_log2_max_frame_num (encoder->idr_period); g_assert (encoder->log2_max_frame_num >= 4); encoder->max_frame_num = (1 << encoder->log2_max_frame_num); encoder->log2_max_pic_order_cnt = encoder->log2_max_frame_num + 1; encoder->max_pic_order_cnt = (1 << encoder->log2_max_pic_order_cnt); encoder->idr_num = 0; for (i = 0; i < encoder->num_views; i++) { GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i]; GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[i]; ref_pool->max_reflist0_count = 1; ref_pool->max_reflist1_count = encoder->num_bframes > 0; ref_pool->max_ref_frames = ref_pool->max_reflist0_count + ref_pool->max_reflist1_count; reorder_pool->frame_index = 0; } } static GstVaapiEncoderStatus gst_vaapi_encoder_h264_encode (GstVaapiEncoder * base_encoder, GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); GstVaapiEncoderStatus ret = GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN; GstVaapiSurfaceProxy *reconstruct = NULL; reconstruct = gst_vaapi_encoder_create_surface (base_encoder); g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE (reconstruct)); if (!ensure_sequence (encoder, picture)) goto error; if (!ensure_misc_params (encoder, picture)) goto error; if (!ensure_picture (encoder, picture, codedbuf, reconstruct)) goto error; if (!ensure_slices (encoder, picture)) goto error; if (!gst_vaapi_enc_picture_encode (picture)) goto error; if (!reference_list_update (encoder, picture, reconstruct)) goto error; return GST_VAAPI_ENCODER_STATUS_SUCCESS; /* ERRORS */ error: { if (reconstruct) gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), reconstruct); return ret; } } static GstVaapiEncoderStatus gst_vaapi_encoder_h264_flush (GstVaapiEncoder * base_encoder) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); GstVaapiH264ViewReorderPool *reorder_pool; GstVaapiEncPicture *pic; guint i; for (i = 0; i < encoder->num_views; i++) { reorder_pool = &encoder->reorder_pools[i]; reorder_pool->frame_index = 0; reorder_pool->cur_frame_num = 0; reorder_pool->cur_present_index = 0; while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) { pic = (GstVaapiEncPicture *) g_queue_pop_head (&reorder_pool->reorder_frame_list); gst_vaapi_enc_picture_unref (pic); } g_queue_clear (&reorder_pool->reorder_frame_list); } return GST_VAAPI_ENCODER_STATUS_SUCCESS; } /* Generate "codec-data" buffer */ static GstVaapiEncoderStatus gst_vaapi_encoder_h264_get_codec_data (GstVaapiEncoder * base_encoder, GstBuffer ** out_buffer_ptr) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); const guint32 configuration_version = 0x01; const guint32 nal_length_size = 4; guint8 profile_idc, profile_comp, level_idc; GstMapInfo sps_info, pps_info; GstBitWriter bs; GstBuffer *buffer; if (!encoder->sps_data || !encoder->pps_data) return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER; if (gst_buffer_get_size (encoder->sps_data) < 4) return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER; if (!gst_buffer_map (encoder->sps_data, &sps_info, GST_MAP_READ)) goto error_map_sps_buffer; if (!gst_buffer_map (encoder->pps_data, &pps_info, GST_MAP_READ)) goto error_map_pps_buffer; /* skip sps_data[0], which is the nal_unit_type */ profile_idc = sps_info.data[1]; profile_comp = sps_info.data[2]; level_idc = sps_info.data[3]; /* Header */ gst_bit_writer_init (&bs, (sps_info.size + pps_info.size + 64) * 8); WRITE_UINT32 (&bs, configuration_version, 8); WRITE_UINT32 (&bs, profile_idc, 8); WRITE_UINT32 (&bs, profile_comp, 8); WRITE_UINT32 (&bs, level_idc, 8); WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */ WRITE_UINT32 (&bs, nal_length_size - 1, 2); WRITE_UINT32 (&bs, 0x07, 3); /* 111 */ /* Write SPS */ WRITE_UINT32 (&bs, 1, 5); /* SPS count = 1 */ g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); WRITE_UINT32 (&bs, sps_info.size, 16); gst_bit_writer_put_bytes (&bs, sps_info.data, sps_info.size); /* Write PPS */ WRITE_UINT32 (&bs, 1, 8); /* PPS count = 1 */ WRITE_UINT32 (&bs, pps_info.size, 16); gst_bit_writer_put_bytes (&bs, pps_info.data, pps_info.size); gst_buffer_unmap (encoder->pps_data, &pps_info); gst_buffer_unmap (encoder->sps_data, &sps_info); buffer = gst_buffer_new_wrapped (GST_BIT_WRITER_DATA (&bs), GST_BIT_WRITER_BIT_SIZE (&bs) / 8); if (!buffer) goto error_alloc_buffer; *out_buffer_ptr = buffer; gst_bit_writer_clear (&bs, FALSE); return GST_VAAPI_ENCODER_STATUS_SUCCESS; /* ERRORS */ bs_error: { GST_ERROR ("failed to write codec-data"); gst_buffer_unmap (encoder->sps_data, &sps_info); gst_buffer_unmap (encoder->pps_data, &pps_info); gst_bit_writer_clear (&bs, TRUE); return FALSE; } error_map_sps_buffer: { GST_ERROR ("failed to map SPS packed header"); return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED; } error_map_pps_buffer: { GST_ERROR ("failed to map PPS packed header"); gst_buffer_unmap (encoder->sps_data, &sps_info); return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED; } error_alloc_buffer: { GST_ERROR ("failed to allocate codec-data buffer"); gst_bit_writer_clear (&bs, TRUE); return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED; } } static GstVaapiEncoderStatus gst_vaapi_encoder_h264_reordering (GstVaapiEncoder * base_encoder, GstVideoCodecFrame * frame, GstVaapiEncPicture ** output) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); GstVaapiH264ViewReorderPool *reorder_pool = NULL; GstVaapiEncPicture *picture; gboolean is_idr = FALSE; *output = NULL; /* encoding views alternatively for MVC */ if (encoder->is_mvc) { /* FIXME: Use first-in-bundle flag on buffers to reset view idx? */ if (frame) encoder->view_idx = frame->system_frame_number % encoder->num_views; else encoder->view_idx = (encoder->view_idx + 1) % encoder->num_views; } reorder_pool = &encoder->reorder_pools[encoder->view_idx]; if (!frame) { if (reorder_pool->reorder_state != GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES) return GST_VAAPI_ENCODER_STATUS_NO_SURFACE; /* reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES dump B frames from queue, sometime, there may also have P frame or I frame */ g_assert (encoder->num_bframes > 0); g_return_val_if_fail (!g_queue_is_empty (&reorder_pool->reorder_frame_list), GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN); picture = g_queue_pop_head (&reorder_pool->reorder_frame_list); g_assert (picture); if (g_queue_is_empty (&reorder_pool->reorder_frame_list)) { reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES; } goto end; } /* new frame coming */ picture = GST_VAAPI_ENC_PICTURE_NEW (H264, encoder, frame); if (!picture) { GST_WARNING ("create H264 picture failed, frame timestamp:%" GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts)); return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED; } ++reorder_pool->cur_present_index; picture->poc = ((reorder_pool->cur_present_index * 2) % encoder->max_pic_order_cnt); is_idr = (reorder_pool->frame_index == 0 || reorder_pool->frame_index >= encoder->idr_period); /* check key frames */ if (is_idr || GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame) || (reorder_pool->frame_index % GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder)) == 0) { ++reorder_pool->cur_frame_num; ++reorder_pool->frame_index; /* b frame enabled, check queue of reorder_frame_list */ if (encoder->num_bframes && !g_queue_is_empty (&reorder_pool->reorder_frame_list)) { GstVaapiEncPicture *p_pic; p_pic = g_queue_pop_tail (&reorder_pool->reorder_frame_list); set_p_frame (p_pic, encoder); g_queue_foreach (&reorder_pool->reorder_frame_list, (GFunc) set_b_frame, encoder); ++reorder_pool->cur_frame_num; set_key_frame (picture, encoder, is_idr); g_queue_push_tail (&reorder_pool->reorder_frame_list, picture); picture = p_pic; reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES; } else { /* no b frames in queue */ set_key_frame (picture, encoder, is_idr); g_assert (g_queue_is_empty (&reorder_pool->reorder_frame_list)); if (encoder->num_bframes) reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES; } goto end; } /* new p/b frames coming */ ++reorder_pool->frame_index; if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES && g_queue_get_length (&reorder_pool->reorder_frame_list) < encoder->num_bframes) { g_queue_push_tail (&reorder_pool->reorder_frame_list, picture); return GST_VAAPI_ENCODER_STATUS_NO_SURFACE; } ++reorder_pool->cur_frame_num; set_p_frame (picture, encoder); if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES) { g_queue_foreach (&reorder_pool->reorder_frame_list, (GFunc) set_b_frame, encoder); reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES; g_assert (!g_queue_is_empty (&reorder_pool->reorder_frame_list)); } end: g_assert (picture); frame = picture->frame; if (GST_CLOCK_TIME_IS_VALID (frame->pts)) frame->pts += encoder->cts_offset; *output = picture; return GST_VAAPI_ENCODER_STATUS_SUCCESS; } static GstVaapiEncoderStatus set_context_info (GstVaapiEncoder * base_encoder) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder); const guint DEFAULT_SURFACES_COUNT = 3; /* Maximum sizes for common headers (in bits) */ enum { MAX_SPS_HDR_SIZE = 16473, MAX_VUI_PARAMS_SIZE = 210, MAX_HRD_PARAMS_SIZE = 4103, MAX_PPS_HDR_SIZE = 101, MAX_SLICE_HDR_SIZE = 397 + 2572 + 6670 + 2402, }; if (!ensure_hw_profile (encoder)) return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE; base_encoder->num_ref_frames = ((encoder->num_bframes ? 2 : 1) + DEFAULT_SURFACES_COUNT) * encoder->num_views; /* Only YUV 4:2:0 formats are supported for now. This means that we have a limit of 3200 bits per macroblock. */ /* XXX: check profile and compute RawMbBits */ base_encoder->codedbuf_size = (GST_ROUND_UP_16 (vip->width) * GST_ROUND_UP_16 (vip->height) / 256) * 400; /* Account for SPS header */ /* XXX: exclude scaling lists, MVC/SVC extensions */ base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_SPS_HDR_SIZE + MAX_VUI_PARAMS_SIZE + 2 * MAX_HRD_PARAMS_SIZE) / 8; /* Account for PPS header */ /* XXX: exclude slice groups, scaling lists, MVC/SVC extensions */ base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_PPS_HDR_SIZE) / 8; /* Account for slice header */ base_encoder->codedbuf_size += encoder->num_slices * (4 + GST_ROUND_UP_8 (MAX_SLICE_HDR_SIZE) / 8); base_encoder->context_info.entrypoint = encoder->entrypoint; return GST_VAAPI_ENCODER_STATUS_SUCCESS; } static GstVaapiEncoderStatus gst_vaapi_encoder_h264_reconfigure (GstVaapiEncoder * base_encoder) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder); GstVaapiEncoderStatus status; guint mb_width, mb_height; mb_width = (GST_VAAPI_ENCODER_WIDTH (encoder) + 15) / 16; mb_height = (GST_VAAPI_ENCODER_HEIGHT (encoder) + 15) / 16; if (mb_width != encoder->mb_width || mb_height != encoder->mb_height) { GST_DEBUG ("resolution: %dx%d", GST_VAAPI_ENCODER_WIDTH (encoder), GST_VAAPI_ENCODER_HEIGHT (encoder)); encoder->mb_width = mb_width; encoder->mb_height = mb_height; encoder->config_changed = TRUE; } /* Take number of MVC views from input caps if provided */ if (GST_VIDEO_INFO_MULTIVIEW_MODE (vip) == GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME || GST_VIDEO_INFO_MULTIVIEW_MODE (vip) == GST_VIDEO_MULTIVIEW_MODE_MULTIVIEW_FRAME_BY_FRAME) encoder->num_views = GST_VIDEO_INFO_VIEWS (vip); encoder->is_mvc = encoder->num_views > 1; status = ensure_profile_and_level (encoder); if (status != GST_VAAPI_ENCODER_STATUS_SUCCESS) return status; reset_properties (encoder); return set_context_info (base_encoder); } static gboolean gst_vaapi_encoder_h264_init (GstVaapiEncoder * base_encoder) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); guint32 i; /* Default encoding entrypoint */ encoder->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE; /* Multi-view coding information */ encoder->is_mvc = FALSE; encoder->num_views = 1; encoder->view_idx = 0; memset (encoder->view_ids, 0, sizeof (encoder->view_ids)); /* re-ordering list initialize */ for (i = 0; i < MAX_NUM_VIEWS; i++) { GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[i]; g_queue_init (&reorder_pool->reorder_frame_list); reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_NONE; reorder_pool->frame_index = 0; reorder_pool->cur_frame_num = 0; reorder_pool->cur_present_index = 0; } /* reference list info initialize */ for (i = 0; i < MAX_NUM_VIEWS; i++) { GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i]; g_queue_init (&ref_pool->ref_list); ref_pool->max_ref_frames = 0; ref_pool->max_reflist0_count = 1; ref_pool->max_reflist1_count = 1; } return TRUE; } static void gst_vaapi_encoder_h264_finalize (GstVaapiEncoder * base_encoder) { /*free private buffers */ GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); GstVaapiEncPicture *pic; GstVaapiEncoderH264Ref *ref; guint32 i; gst_buffer_replace (&encoder->sps_data, NULL); gst_buffer_replace (&encoder->subset_sps_data, NULL); gst_buffer_replace (&encoder->pps_data, NULL); /* reference list info de-init */ for (i = 0; i < MAX_NUM_VIEWS; i++) { GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i]; while (!g_queue_is_empty (&ref_pool->ref_list)) { ref = (GstVaapiEncoderH264Ref *) g_queue_pop_head (&ref_pool->ref_list); reference_pic_free (encoder, ref); } g_queue_clear (&ref_pool->ref_list); } /* re-ordering list initialize */ for (i = 0; i < MAX_NUM_VIEWS; i++) { GstVaapiH264ViewReorderPool *const reorder_pool = &encoder->reorder_pools[i]; while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) { pic = (GstVaapiEncPicture *) g_queue_pop_head (&reorder_pool->reorder_frame_list); gst_vaapi_enc_picture_unref (pic); } g_queue_clear (&reorder_pool->reorder_frame_list); } } static GstVaapiEncoderStatus gst_vaapi_encoder_h264_set_property (GstVaapiEncoder * base_encoder, gint prop_id, const GValue * value) { GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264_CAST (base_encoder); switch (prop_id) { case GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES: encoder->num_bframes = g_value_get_uint (value); break; case GST_VAAPI_ENCODER_H264_PROP_INIT_QP: encoder->init_qp = g_value_get_uint (value); break; case GST_VAAPI_ENCODER_H264_PROP_MIN_QP: encoder->min_qp = g_value_get_uint (value); break; case GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES: encoder->num_slices = g_value_get_uint (value); break; case GST_VAAPI_ENCODER_H264_PROP_CABAC: encoder->use_cabac = g_value_get_boolean (value); break; case GST_VAAPI_ENCODER_H264_PROP_DCT8X8: encoder->use_dct8x8 = g_value_get_boolean (value); break; case GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH: encoder->cpb_length = g_value_get_uint (value); break; case GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS: encoder->num_views = g_value_get_uint (value); break; case GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS:{ guint i; GValueArray *view_ids = g_value_get_boxed (value); if (view_ids == NULL) { for (i = 0; i < encoder->num_views; i++) encoder->view_ids[i] = i; } else { g_assert (view_ids->n_values <= encoder->num_views); for (i = 0; i < encoder->num_views; i++) { GValue *val = g_value_array_get_nth (view_ids, i); encoder->view_ids[i] = g_value_get_uint (val); } } break; } default: return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER; } return GST_VAAPI_ENCODER_STATUS_SUCCESS; } GST_VAAPI_ENCODER_DEFINE_CLASS_DATA (H264); static inline const GstVaapiEncoderClass * gst_vaapi_encoder_h264_class (void) { static const GstVaapiEncoderClass GstVaapiEncoderH264Class = { GST_VAAPI_ENCODER_CLASS_INIT (H264, h264), .set_property = gst_vaapi_encoder_h264_set_property, .get_codec_data = gst_vaapi_encoder_h264_get_codec_data }; return &GstVaapiEncoderH264Class; } /** * gst_vaapi_encoder_h264_new: * @display: a #GstVaapiDisplay * * Creates a new #GstVaapiEncoder for H.264 encoding. Note that the * only supported output stream format is "byte-stream" format. * * Return value: the newly allocated #GstVaapiEncoder object */ GstVaapiEncoder * gst_vaapi_encoder_h264_new (GstVaapiDisplay * display) { return gst_vaapi_encoder_new (gst_vaapi_encoder_h264_class (), display); } /** * gst_vaapi_encoder_h264_get_default_properties: * * Determines the set of common and H.264 specific encoder properties. * The caller owns an extra reference to the resulting array of * #GstVaapiEncoderPropInfo elements, so it shall be released with * g_ptr_array_unref() after usage. * * Return value: the set of encoder properties for #GstVaapiEncoderH264, * or %NULL if an error occurred. */ GPtrArray * gst_vaapi_encoder_h264_get_default_properties (void) { const GstVaapiEncoderClass *const klass = gst_vaapi_encoder_h264_class (); GPtrArray *props; props = gst_vaapi_encoder_properties_get_default (klass); if (!props) return NULL; /** * GstVaapiEncoderH264:max-bframes: * * The number of B-frames between I and P. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES, g_param_spec_uint ("max-bframes", "Max B-Frames", "Number of B-frames between I and P", 0, 10, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:init-qp: * * The initial quantizer value. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_INIT_QP, g_param_spec_uint ("init-qp", "Initial QP", "Initial quantizer value", 1, 51, 26, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:min-qp: * * The minimum quantizer value. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_MIN_QP, g_param_spec_uint ("min-qp", "Minimum QP", "Minimum quantizer value", 1, 51, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:num-slices: * * The number of slices per frame. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES, g_param_spec_uint ("num-slices", "Number of Slices", "Number of slices per frame", 1, 200, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:cabac: * * Enable CABAC entropy coding mode for improved compression ratio, * at the expense that the minimum target profile is Main. Default * is CAVLC entropy coding mode. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_CABAC, g_param_spec_boolean ("cabac", "Enable CABAC", "Enable CABAC entropy coding mode", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:dct8x8: * * Enable adaptive use of 8x8 transforms in I-frames. This improves * the compression ratio by the minimum target profile is High. * Default is to use 4x4 DCT only. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_DCT8X8, g_param_spec_boolean ("dct8x8", "Enable 8x8 DCT", "Enable adaptive use of 8x8 transforms in I-frames", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:cpb-length: * * The size of the CPB buffer in milliseconds. */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH, g_param_spec_uint ("cpb-length", "CPB Length", "Length of the CPB buffer in milliseconds", 1, 10000, DEFAULT_CPB_LENGTH, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:num-views: * * The number of views for MVC encoding . */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS, g_param_spec_uint ("num-views", "Number of Views", "Number of Views for MVC encoding", 1, MAX_NUM_VIEWS, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstVaapiEncoderH264:view-ids: * * The view ids for MVC encoding . */ GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS, g_param_spec_value_array ("view-ids", "View IDs", "Set of View Ids used for MVC encoding", g_param_spec_uint ("view-id-value", "View id value", "view id values used for mvc encoding", 0, MAX_VIEW_ID, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS), G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); return props; } /** * gst_vaapi_encoder_h264_set_max_profile: * @encoder: a #GstVaapiEncoderH264 * @profile: an H.264 #GstVaapiProfile * * Notifies the @encoder to use coding tools from the supplied * @profile at most. * * This means that if the minimal profile derived to * support the specified coding tools is greater than this @profile, * then an error is returned when the @encoder is configured. * * Return value: %TRUE on success */ gboolean gst_vaapi_encoder_h264_set_max_profile (GstVaapiEncoderH264 * encoder, GstVaapiProfile profile) { guint8 profile_idc; g_return_val_if_fail (encoder != NULL, FALSE); g_return_val_if_fail (profile != GST_VAAPI_PROFILE_UNKNOWN, FALSE); if (gst_vaapi_profile_get_codec (profile) != GST_VAAPI_CODEC_H264) return FALSE; profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile); if (!profile_idc) return FALSE; encoder->max_profile_idc = profile_idc; return TRUE; } /** * gst_vaapi_encoder_h264_get_profile_and_level: * @encoder: a #GstVaapiEncoderH264 * @out_profile_ptr: return location for the #GstVaapiProfile * @out_level_ptr: return location for the #GstVaapiLevelH264 * * Queries the H.264 @encoder for the active profile and level. That * information is only constructed and valid after the encoder is * configured, i.e. after the gst_vaapi_encoder_set_codec_state() * function is called. * * Return value: %TRUE on success */ gboolean gst_vaapi_encoder_h264_get_profile_and_level (GstVaapiEncoderH264 * encoder, GstVaapiProfile * out_profile_ptr, GstVaapiLevelH264 * out_level_ptr) { g_return_val_if_fail (encoder != NULL, FALSE); if (!encoder->profile || !encoder->level) return FALSE; if (out_profile_ptr) *out_profile_ptr = encoder->profile; if (out_level_ptr) *out_level_ptr = encoder->level; return TRUE; }