/***************************************************************************** * Copyright © 2010-2014 VideoLAN * * Authors: Jean-Baptiste Kempf * * This program 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 program 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 program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ #ifndef H264_NAL_H # define H264_NAL_H # include # include #define PROFILE_H264_BASELINE 66 #define PROFILE_H264_MAIN 77 #define PROFILE_H264_EXTENDED 88 #define PROFILE_H264_HIGH 100 #define PROFILE_H264_HIGH_10 110 #define PROFILE_H264_HIGH_422 122 #define PROFILE_H264_HIGH_444 144 #define PROFILE_H264_HIGH_444_PREDICTIVE 244 #define PROFILE_H264_CAVLC_INTRA 44 #define PROFILE_H264_SVC_BASELINE 83 #define PROFILE_H264_SVC_HIGH 86 #define PROFILE_H264_MVC_STEREO_HIGH 128 #define PROFILE_H264_MVC_MULTIVIEW_HIGH 118 #define PROFILE_H264_MFC_HIGH 134 #define PROFILE_H264_MVC_MULTIVIEW_DEPTH_HIGH 138 #define PROFILE_H264_MVC_ENHANCED_MULTIVIEW_DEPTH_HIGH 139 #define H264_SPS_ID_MAX (31) #define H264_PPS_ID_MAX (255) #define H264_SPSEXT_ID_MAX H264_SPS_ID_MAX enum h264_nal_unit_type_e { H264_NAL_UNKNOWN = 0, H264_NAL_SLICE = 1, H264_NAL_SLICE_DPA = 2, H264_NAL_SLICE_DPB = 3, H264_NAL_SLICE_DPC = 4, H264_NAL_SLICE_IDR = 5, /* ref_idc != 0 */ H264_NAL_SEI = 6, /* ref_idc == 0 */ H264_NAL_SPS = 7, H264_NAL_PPS = 8, H264_NAL_AU_DELIMITER= 9, /* ref_idc == 0 for 6,9,10,11,12 */ H264_NAL_END_OF_SEQ = 10, H264_NAL_END_OF_STREAM = 11, H264_NAL_FILLER_DATA = 12, H264_NAL_SPS_EXT = 13, H264_NAL_PREFIX = 14, H264_NAL_SUBSET_SPS = 15, H264_NAL_DEPTH_PS = 16, H264_NAL_RESERVED_17 = 17, H264_NAL_RESERVED_18 = 18, H264_NAL_SLICE_WP = 19, H264_NAL_SLICE_EXT = 20, H264_NAL_SLICE_3D_EXT= 21, H264_NAL_RESERVED_22 = 22, H264_NAL_RESERVED_23 = 23, }; typedef struct h264_sequence_parameter_set_t h264_sequence_parameter_set_t; typedef struct h264_picture_parameter_set_t h264_picture_parameter_set_t; typedef struct h264_sequence_parameter_set_extension_t h264_sequence_parameter_set_extension_t; h264_sequence_parameter_set_t * h264_decode_sps( const uint8_t *, size_t, bool ); h264_picture_parameter_set_t * h264_decode_pps( const uint8_t *, size_t, bool ); h264_sequence_parameter_set_extension_t * h264_decode_sps_extension( const uint8_t *, size_t, bool ); void h264_release_sps( h264_sequence_parameter_set_t * ); void h264_release_pps( h264_picture_parameter_set_t * ); void h264_release_sps_extension( h264_sequence_parameter_set_extension_t * ); struct h264_sequence_parameter_set_t { uint8_t i_id; uint8_t i_profile, i_level; uint8_t i_constraint_set_flags; /* according to avcC, 3 bits max for those */ uint8_t i_chroma_idc; uint8_t i_bit_depth_luma; uint8_t i_bit_depth_chroma; uint8_t b_separate_colour_planes_flag; uint32_t pic_width_in_mbs_minus1; uint32_t pic_height_in_map_units_minus1; struct { uint32_t left_offset; uint32_t right_offset; uint32_t top_offset; uint32_t bottom_offset; } frame_crop; uint8_t frame_mbs_only_flag; uint8_t mb_adaptive_frame_field_flag; int i_log2_max_frame_num; int i_pic_order_cnt_type; int i_delta_pic_order_always_zero_flag; int32_t offset_for_non_ref_pic; int32_t offset_for_top_to_bottom_field; int i_num_ref_frames_in_pic_order_cnt_cycle; int32_t offset_for_ref_frame[255]; int i_log2_max_pic_order_cnt_lsb; struct { bool b_valid; int i_sar_num, i_sar_den; struct { bool b_full_range; uint8_t i_colour_primaries; uint8_t i_transfer_characteristics; uint8_t i_matrix_coefficients; } colour; bool b_timing_info_present_flag; uint32_t i_num_units_in_tick; uint32_t i_time_scale; bool b_fixed_frame_rate; bool b_pic_struct_present_flag; bool b_hrd_parameters_present_flag; /* CpbDpbDelaysPresentFlag */ uint8_t i_cpb_removal_delay_length_minus1; uint8_t i_dpb_output_delay_length_minus1; /* restrictions */ uint8_t b_bitstream_restriction_flag; uint8_t i_max_num_reorder_frames; } vui; }; struct h264_picture_parameter_set_t { uint8_t i_id; uint8_t i_sps_id; uint8_t i_pic_order_present_flag; uint8_t i_redundant_pic_present_flag; uint8_t weighted_pred_flag; uint8_t weighted_bipred_idc; }; struct h264_sequence_parameter_set_extension_t { uint8_t i_sps_id; }; /* AnnexB : [\x00] \x00 \x00 \x01 Prefixed NAL AVC Sample format : NalLengthSize encoded size prefixed NAL avcC: AVCDecoderConfigurationRecord combining SPS & PPS in AVC Sample Format */ #define H264_MIN_AVCC_SIZE 7 bool h264_isavcC( const uint8_t *, size_t ); /* Convert AVC Sample format to Annex B in-place */ void h264_AVC_to_AnnexB( uint8_t *p_buf, uint32_t i_len, uint8_t i_nal_length_size ); /* Get the First SPS/PPS NAL pointers from an Annex B buffer * Returns TRUE if a SPS and/or a PPS is found */ bool h264_AnnexB_get_spspps( const uint8_t *p_buf, size_t i_buf, const uint8_t **pp_sps, size_t *p_sps_size, const uint8_t **pp_pps, size_t *p_pps_size, const uint8_t **pp_ext, size_t *p_ext_size ); /* Create a AVCDecoderConfigurationRecord from non prefixed SPS/PPS * Returns a valid block_t on success, must be freed with block_Release */ block_t *h264_NAL_to_avcC( uint8_t i_nal_length_size, const uint8_t **pp_sps_buf, const size_t *p_sps_size, uint8_t i_sps_count, const uint8_t **pp_pps_buf, const size_t *p_pps_size, uint8_t i_pps_count, const uint8_t **pp_sps_ext_buf, const size_t *p_sps_ext_size, uint8_t i_sps_ext_count); /* Convert AVCDecoderConfigurationRecord SPS/PPS to Annex B format */ uint8_t * h264_avcC_to_AnnexB_NAL( const uint8_t *p_buf, size_t i_buf, size_t *pi_result, uint8_t *pi_nal_length_size ); bool h264_get_dpb_values( const h264_sequence_parameter_set_t *, uint8_t *pi_depth, unsigned *pi_delay ); bool h264_get_picture_size( const h264_sequence_parameter_set_t *, unsigned *p_w, unsigned *p_h, unsigned *p_vw, unsigned *p_vh ); bool h264_get_chroma_luma( const h264_sequence_parameter_set_t *, uint8_t *pi_chroma_format, uint8_t *pi_depth_luma, uint8_t *pi_depth_chroma ); bool h264_get_colorimetry( const h264_sequence_parameter_set_t *p_sps, video_color_primaries_t *p_primaries, video_transfer_func_t *p_transfer, video_color_space_t *p_colorspace, bool *p_full_range ); /* Get level and Profile from DecoderConfigurationRecord */ bool h264_get_profile_level(const es_format_t *p_fmt, uint8_t *pi_profile, uint8_t *pi_level, uint8_t *p_nal_length_size); #endif /* H264_NAL_H */