File_Ac4.h

/* Copyright (c) MediaArea.net SARL. All Rights Reserved. * * Use of this source code is governed by a BSD-style license that can * be found in the License.html file in the root of the source tree. */ //--------------------------------------------------------------------------- #ifndef MediaInfo_Ac4H #define MediaInfo_Ac4H //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- #include "MediaInfo/File__Analyze.h" #include "MediaInfo/TimeCode.h" //--------------------------------------------------------------------------- namespace MediaInfoLib { typedef const int8s (*ac4_huffman)[2]; struct variable_size { int8u AddedSize; int16u Value; }; //*************************************************************************** // Class File_Ac4 //*************************************************************************** class File_Ac4 : public File__Analyze { public : //In int64u Frame_Count_Valid; bool MustParse_dac4; struct loudness_info { int8u dialnorm_bits; int8u loud_prac_type; int8u loud_dialgate_prac_type; int16u max_truepk; bool b_loudcorr_type; int16u loudrelgat; int16u loudspchgat; int8u loudspchgat_dialgate_prac_type; int16u lra; int8u lra_prac_type; int16u max_loudmntry; loudness_info() : dialnorm_bits((int8u)-1), loud_prac_type((int8u)-1), loud_dialgate_prac_type((int8u)-1), max_truepk((int16u)-1), loudrelgat((int16u)-1), loudspchgat((int16u)-1), lra((int16u)-1), max_loudmntry((int16u)-1) {} }; struct preprocessing { int8u pre_dmixtyp_2ch; int8u phase90_info_2ch; int8u pre_dmixtyp_5ch; int8u phase90_info_mc; bool b_surround_attenuation_known; bool b_lfe_attenuation_known; preprocessing() : pre_dmixtyp_2ch((int8u)-1), pre_dmixtyp_5ch((int8u)-1), phase90_info_mc((int8u)-1) {} }; struct drc_decoder_config_curve { int8u drc_lev_nullband_low; int8u drc_lev_nullband_high; int8u drc_gain_max_boost; int8u drc_gain_max_cut; int8u drc_lev_max_cut; int8u drc_gain_section_cut; int8u drc_lev_section_cut; int8u drc_tc_attack; int8u drc_tc_release; int8u drc_tc_attack_fast; int8u drc_tc_release_fast; int8u drc_attack_threshold; int8u drc_release_threshold; bool operator==(const drc_decoder_config_curve& C) { return !memcmp(this, &C, sizeof(drc_decoder_config_curve)); } }; struct drc_decoder_config { int8u drc_repeat_id; bool drc_default_profile_flag; int8u drc_decoder_mode_id; bool drc_compression_curve_flag; drc_decoder_config_curve drc_compression_curve; int8u drc_gains_config; drc_decoder_config() : drc_repeat_id((int8u)-1) {} }; struct drc_info { vector<drc_decoder_config> Decoders; int8u drc_eac3_profile; drc_info() : drc_eac3_profile((int8u)-1) {} }; struct de_config { int8u de_method; int8u de_max_gain; int8u de_channel_config; de_config() : de_max_gain((int8u)-1) {} }; struct de_info { bool b_de_data_present; de_config Config; de_info() : b_de_data_present(false) {} }; struct dmx { int8u loro_centre_mixgain; int8u loro_surround_mixgain; int8u ltrt_centre_mixgain; int8u ltrt_surround_mixgain; int8u lfe_mixgain; int8u preferred_dmx_method; dmx() : loro_centre_mixgain((int8u)-1), loro_surround_mixgain((int8u)-1), ltrt_centre_mixgain((int8u)-1), ltrt_surround_mixgain((int8u)-1), lfe_mixgain((int8u)-1), preferred_dmx_method((int8u)-1) {} }; struct content_info { int8u content_classifier; string language_tag_bytes; content_info() : content_classifier((int8u)-1) {} }; //Constructor/Destructor File_Ac4(); ~File_Ac4(); private : enum substream_type_t { Type_Unknown, Type_Ac4_Substream, Type_Ac4_Hsf_Ext_Substream, Type_Emdf_Payloads_Substream, Type_Ac4_Presentation_Substream, Type_Oamd_Substream, Type_Max, }; //Presentations struct presentation_substream { substream_type_t substream_type; int8u substream_index; }; struct presentation { vector<size_t> substream_group_info_specifiers; vector<presentation_substream> Substreams; int8u presentation_version; int32u presentation_id; bool b_pres_ndot; bool b_alternative; bool dolby_atmos_indicator; int8u substream_index; int8u presentation_config; int8u n_substream_groups; int8u b_multi_pid_PresentAndValue; int8u frame_rate_fraction_minus1; loudness_info LoudnessInfo; drc_info DrcInfo; dmx Dmx; //Computed int8u pres_ch_mode; int8u pres_ch_mode_core; int8u pres_immersive_stereo; int8u n_substreams_in_presentation; bool b_pres_4_back_channels_present; bool b_pres_centre_present; int8u pres_top_channel_pairs; string Language; presentation() : presentation_config((int8u)-1), presentation_id((int32u)-1), frame_rate_fraction_minus1(0), dolby_atmos_indicator(false), substream_index((int8u)-1), b_multi_pid_PresentAndValue((int8u)-1), pres_ch_mode((int8u)-1), pres_ch_mode_core((int8u)-1), pres_immersive_stereo((int8u)-1), n_substreams_in_presentation(0), b_pres_4_back_channels_present(false), b_pres_centre_present(false), pres_top_channel_pairs(0) {} void reset_cumulative() { substream_group_info_specifiers.clear(); Substreams.clear(); frame_rate_fraction_minus1=0; } }; vector<presentation> Presentations; vector<presentation> Presentations_IFrame; vector<presentation> Presentations_dac4; //Groups struct group_substream { substream_type_t substream_type; int8u substream_index; bool b_iframe; bool sus_ver; // b_channel_coded int8u ch_mode; bool b_4_back_channels_present; bool b_centre_present; int8u top_channels_present; int8u hsf_substream_index; // b_ajoc bool b_ajoc; bool b_static_dmx; int8u n_fullband_upmix_signals; int8u n_fullband_dmx_signals; // !b_ajoc int8u n_objects_code; bool b_dynamic_objects; bool b_lfe; int32u nonstd_bed_channel_assignment_mask; // Computed int8u ch_mode_core; int8u immersive_stereo; int8u top_channel_pairs; group_substream() : substream_index((int8u)-1), sus_ver(false), ch_mode((int8u)-1), ch_mode_core((int8u)-1), immersive_stereo((int8u)-1), top_channels_present((int8u)-1), hsf_substream_index((int8u)-1), nonstd_bed_channel_assignment_mask((int32u)-1) {} }; struct group { vector<group_substream> Substreams; content_info ContentInfo; bool b_channel_coded; bool b_hsf_ext; }; vector<group> Groups; vector<group> Groups_IFrame; vector<group> Groups_dac4; //Audio substreams struct buffer { int8u* Data; size_t Offset; size_t Size; void Create(size_t NewSize) { delete[] Data; Size=NewSize; Data=new int8u[Size]; Offset=0; } void Clear() { delete[] Data; Data=NULL; } void Append(const uint8_t* BufferToAdd, size_t SizeToAdd) { if (!Data) Create(SizeToAdd); size_t NewOffset=Offset+SizeToAdd; if (NewOffset>Size) { uint8_t* Data_ToDelete=Data; Size=NewOffset; Data=new int8u[Size]; memcpy(Data, Data_ToDelete, Offset); delete[] Data_ToDelete; } memcpy(Data+Offset, BufferToAdd, SizeToAdd); Offset=NewOffset; } buffer() : Data(NULL) {} ~buffer() { delete[] Data; } }; struct audio_substream { loudness_info LoudnessInfo; int8u dialog_max_gain; drc_info DrcInfo; de_info DeInfo; preprocessing Preprocessing; buffer Buffer; int8u Buffer_Index; bool b_dialog; bool b_iframe; audio_substream(bool b_iframe_=true) : dialog_max_gain((int8u)-1), Buffer_Index(0), b_dialog(false), b_iframe(b_iframe_) {} }; std::map<int8u, audio_substream> AudioSubstreams; std::map<int8u, audio_substream> AudioSubstreams_IFrame; //Streams management void Streams_Fill(); void Streams_Finish(); //Buffer - Synchro bool Synchronize(); void Synched_Init(); bool Synched_Test(); //Buffer - Global void Read_Buffer_Continue (); void Read_Buffer_Unsynched(); //Buffer - Per element void Header_Parse(); void Data_Parse(); //Elements void raw_ac4_frame(); void raw_ac4_frame_substreams(); void ac4_toc(); void ac4_presentation_info(presentation& P); void ac4_presentation_v1_info(presentation& P); void ac4_sgi_specifier(presentation& P); void ac4_substream_info(presentation& P); void ac4_substream_group_info(group& G); void ac4_hsf_ext_substream_info(group_substream& G, bool b_substreams_present); void ac4_substream_info_chan(group_substream& G, size_t Pos, bool b_substreams_present); void ac4_substream_info_ajoc(group_substream& G, bool b_substreams_present); void ac4_substream_info_obj(group_substream& G, bool b_substreams_present); void ac4_presentation_substream_info(presentation& P); void presentation_config_ext_info(presentation& P); void bed_dyn_obj_assignment(group_substream& G, int8u n_signals); void content_type(content_info& ContentInfo); void frame_rate_multiply_info(); void frame_rate_fractions_info(presentation& P); void emdf_info(presentation_substream& P); void emdf_payloads_substream_info(presentation_substream& P); void emdf_protection(); void substream_index_table(); void oamd_substream_info(group_substream& G, bool b_substreams_present); void oamd_common_data(); void ac4_substream(size_t substream_index); void ac4_presentation_substream(size_t substream_index, size_t Substream_Index); void metadata(audio_substream& AudioSubstream, size_t Substream_Index); void basic_metadata(loudness_info& LoudnessInfo, preprocessing& Preprocessing, int8u ch_mode, bool sus_ver); void extended_metadata(audio_substream& AudioSubstream, bool b_associated, int8u ch_mode, bool sus_ver); void dialog_enhancement(de_info& Info, int8u ch_mode, bool b_iframe); void dialog_enhancement_config(de_info& Info); void dialog_enhancement_data(de_info& Info, bool b_iframe, bool b_de_simulcast); void custom_dmx_data(dmx& Dmx, int8u pres_ch_mode, int8u pres_ch_mode_core, bool b_pres_4_back_channels_present, int8u pres_top_channel_pairs, bool b_pres_has_lfe); void cdmx_parameters(int8u bs_ch_config, int8u out_ch_config); void tool_scr_to_c_l(); void tool_b4_to_b2(); void tool_t4_to_t2(); void tool_t4_to_f_s_b(); void tool_t4_to_f_s(); void tool_t2_to_f_s_b(); void tool_t2_to_f_s(); void loud_corr(int8u pres_ch_mode, int8u pres_ch_mode_core, bool b_objects); void drc_frame(drc_info& DrcInfo, bool b_iframe); void drc_config(drc_info& DrcInfo); void drc_data(drc_info& DrcInfo); void drc_gains(drc_decoder_config& Decoder); void drc_decoder_mode_config(drc_decoder_config& Decoder); void drc_compression_curve(drc_decoder_config_curve& Curve); void further_loudness_info(loudness_info& LoudnessInfo, bool sus_ver, bool b_presentation_ldn); void dac4(); void alternative_info(); void ac4_bitrate_dsi(); void ac4_presentation_v1_dsi(presentation& P); void ac4_substream_group_dsi(presentation& P); //Parsing void Get_V4 (int8u Bits, int32u &Info, const char* Name); void Skip_V4(int8u Bits, const char* Name); void Get_V4(int8u Bits1, int8u Bits2, int8u Flag_Value, int32u &Info, const char* Name); void Skip_V4(int8u Bits1, int8u Bits2, int8u Flag_Value, const char* Name); void Get_V4(int8u Bits1, int8u Bits2, int8u Bits3, int8u Bits4, int32u &Info, const char* Name); void Get_V4(const variable_size* Bits, int8u &Info, const char* Name); void Get_VB (int8u &Info, const char* Name); void Skip_VB(const char* Name); //Utils bool CRC_Compute(size_t Size); void ac4_toc_Compute(vector<presentation>& Ps, vector<group>& Gs, bool FromDac4); int8u Superset(int8u Ch_Mode1, int8u Ch_Mode2); int16u Huffman_Decode(const ac4_huffman& Table, const char* Name); //Temp int32u frame_size; int32u payload_base; int16u sync_word; int8u bitstream_version; int8u frame_rate_index; bool fs_index; int8u frame_rate_factor; int8u frame_rate_fraction; int8u max_group_index; int8u n_substreams; vector<size_t> IFrames; std::vector<size_t> Substream_Size; std::map<int8u, substream_type_t> Substream_Type; }; } //NameSpace #endif

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: b_loudcorr_type, loudspchgat_dialgate_prac_type, lra_prac_type.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: phase90_info_2ch, b_surround_attenuation_known, b_lfe_attenuation_known.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: presentation_version, b_pres_ndot, b_alternative, n_substream_groups.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: drc_default_profile_flag, drc_decoder_mode_id, drc_compression_curve_flag, drc_compression_curve, drc_gains_config.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: de_method, de_channel_config.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: Offset, Size.

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: substream_type, b_iframe, b_4_back_channels_present, b_centre_present, b_ajoc, b_static_dmx, ...

↑ V802 On 64-bit platform, structure size can be reduced from 20 to 16 bytes by rearranging the fields according to their sizes in decreasing order.