自学教程：C++ Get_SB函数代码示例

//---------------------------------------------------------------------------void File_Mpeg4_Descriptors::Descriptor_03(){    //Parsing    bool streamDependenceFlag, URL_Flag, OCRstreamFlag;    Get_B2 (ES_ID,                                              "ES_ID");    BS_Begin();    Get_SB (   streamDependenceFlag,                            "streamDependenceFlag");    Get_SB (   URL_Flag,                                        "URL_Flag");    Get_SB (   OCRstreamFlag,                                   "OCRstreamFlag");    Skip_S1(5,                                                  "streamPriority");    BS_End();    if (streamDependenceFlag)        Skip_B2(                                                "dependsOn_ES_ID");    if (URL_Flag)    {        int8u URLlength;        Get_B1 (URLlength,                                      "URLlength");        Skip_UTF8(URLlength,                                    "URLstring");    }    if (OCRstreamFlag)        Skip_B2(                                                "OCR_ES_Id");    FILLING_BEGIN();        Element_ThisIsAList();    FILLING_END();}

//---------------------------------------------------------------------------void File_Aac::ErrorResilientCelpSpecificConfig (){    Element_Begin1("ErrorResilientCelpSpecificConfig");    bool isBaseLayer;    Get_SB(isBaseLayer,                                         "isBaseLayer");    if (isBaseLayer)    {        ER_SC_CelpHeader ();    }    else    {        bool isBWSLayer;        Get_SB(isBWSLayer,                                      "isBWSLayer");        if (isBWSLayer)        {            //~ CelpBWSenhHeader ()            //~ {            Skip_S1(2,                                          "BWS_configuration");            //~ }        }        else        {            Skip_S1(2,                                          "CELP-BRS-id");        }    }    Element_End0();}

//---------------------------------------------------------------------------void File_Dts::Header_Parse(){    //Parsing    int16u Primary_Frame_Byte_Size_minus_1;    int8u  EncoderSoftwareRevision;    bool   crc_present;    Skip_B4(                                                    "Sync");    BS_Begin();    Info_SB(    FrameType,                                      "Frame Type"); Param_Info(DTS_FrameType[FrameType]);    Skip_S1( 5,                                                 "Deficit Sample Count");    Get_SB (    crc_present,                                    "CRC Present");    Skip_S1( 7,                                                 "Number of PCM Sample Blocks");    Get_S2 (14, Primary_Frame_Byte_Size_minus_1,                "Primary Frame Byte Size minus 1");    Primary_Frame_Byte_Size_minus_1+=1;    if (!Word) Primary_Frame_Byte_Size_minus_1=Primary_Frame_Byte_Size_minus_1*8/14*2; Param_Info(Ztring::ToZtring(Primary_Frame_Byte_Size_minus_1)+_T(" bytes")); //Word is on 14 bits!    Get_S1 ( 6, channel_arrangement,                            "Audio Channel Arrangement"); Param_Info(Ztring::ToZtring(DTS_Channels[channel_arrangement])+_T(" channels"));    Get_S1 ( 4, sample_frequency,                               "Core Audio Sampling Frequency"); Param_Info(Ztring::ToZtring(DTS_SamplingRate[sample_frequency])+_T(" Hz"));    Get_S1 ( 5, bit_rate,                                       "Transmission Bit Rate"); Param_Info(Ztring::ToZtring(DTS_BitRate[bit_rate])+_T(" bps"));    Skip_SB(                                                    "Embedded Down Mix Enabled");    Skip_SB(                                                    "Embedded Dynamic Range");    Skip_SB(                                                    "Embedded Time Stamp");    Skip_SB(                                                    "Auxiliary Data");    Skip_SB(                                                    "HDCD");    Get_S1 ( 3, ExtensionAudioDescriptor,                       "Extension Audio Descriptor"); Param_Info(DTS_ExtensionAudioDescriptor[ExtensionAudioDescriptor]);    Get_SB (    ExtendedCoding,                                 "Extended Coding");    Skip_SB(                                                    "Audio Sync Word Insertion");    Get_S1 ( 2, lfe_effects,                                    "Low Frequency Effects");    Skip_SB(                                                    "Predictor History");    if (crc_present)        Skip_S2(16,                                             "Header CRC Check");    Skip_SB(                                                    "Multirate Interpolator");    Get_S1 ( 4, EncoderSoftwareRevision,                        "Encoder Software Revision");    Skip_S1( 2,                                                 "Copy History");    Get_S1 ( 2, bits_per_sample,                                "Source PCM Resolution"); Param_Info(Ztring::ToZtring(DTS_Resolution[bits_per_sample])+_T(" bits"));    Skip_SB(                                                    "ES");    Skip_SB(                                                    "Front Sum/Difference");    Skip_SB(                                                    "Surrounds Sum/Difference");    Skip_S1( 4,                                                 "Dialog Normalisation Parameter");    switch (EncoderSoftwareRevision)    {        case 6 :                Skip_S1( 4,                                     "Dialog Normalisation Parameter");                break;        case 7 :                Skip_S1( 4,                                     "Dialog Normalisation Parameter");                break;        default :                Skip_S1( 4,                                     "Unspecified");                break;    }    BS_End();    //Filling    Header_Fill_Size(Primary_Frame_Byte_Size_minus_1+DTS_HD_Unknown_Size); //TODO: change this, for DTS-HD    Header_Fill_Code(0, "Frame");}

//---------------------------------------------------------------------------// Packet "B0"void File_AvsV::video_sequence_start(){    Element_Name("video_sequence_start");    //Parsing    int32u bit_rate_upper, bit_rate_lower;    Get_B1 (    profile_id,                                     "profile_id");    Get_B1 (    level_id,                                       "level_id");    BS_Begin();    Get_SB (    progressive_sequence,                           "progressive_sequence");    Get_S2 (14, horizontal_size,                                "horizontal_size");    Get_S2 (14, vertical_size,                                  "vertical_size");    Get_S1 ( 2, chroma_format,                                  "chroma_format");    Skip_S1( 3,                                                 "sample_precision");    Get_S1 ( 4, aspect_ratio,                                   "aspect_ratio"); Param_Info(AvsV_aspect_ratio[aspect_ratio]);    Get_S1 ( 4, frame_rate_code,                                "frame_rate_code"); Param_Info(AvsV_frame_rate[frame_rate_code]);    Get_S3 (18, bit_rate_lower,                                 "bit_rate_lower");    Mark_1 ();    Get_S3 (12, bit_rate_upper,                                 "bit_rate_upper");    bit_rate=(bit_rate_upper<<18)+bit_rate_lower; Param_Info(bit_rate*8, " bps");    Get_SB (    low_delay,                                      "low_delay");    Mark_1 ();    Skip_S3(18,                                                 "bbv_buffer_size");    Skip_SB(                                                    "reserved");    Skip_SB(                                                    "reserved");    Skip_SB(                                                    "reserved");    BS_End();    //Not sure, but the 3 first official files have this    if (Element_Size-Element_Offset)    {        BS_Begin();        Mark_1();        BS_End();    }    FILLING_BEGIN();        //NextCode        NextCode_Clear();        NextCode_Add(0xB2); //user_data_start        NextCode_Add(0xB3); //picture_start (I)        NextCode_Add(0xB5); //extension_start        //Autorisation of other streams        Streams[0xB1].Searching_Payload=true, //video_sequence_end        Streams[0xB2].Searching_Payload=true; //user_data_start        Streams[0xB3].Searching_Payload=true, //picture_start (I)        Streams[0xB4].Searching_Payload=true, //reserved        Streams[0xB5].Searching_Payload=true; //extension_start        Streams[0xB6].Searching_Payload=true, //picture_start (P or B)        Streams[0xB7].Searching_Payload=true; //video_edit        Streams[0xB8].Searching_Payload=true, //reserved        video_sequence_start_IsParsed=true;    FILLING_END();}

//---------------------------------------------------------------------------void File_Cdp::ccsvcinfo_section(){    //Parsing    int8u svc_count;    Element_Begin1("ccsvcinfo_section");    Skip_B1(                                                    "ccsvcinfo_id");    BS_Begin();    Skip_SB(                                                    "reserved");    Skip_SB(                                                    "svc_info_start");    Skip_SB(                                                    "svc_info_change");    Skip_SB(                                                    "svc_info_complete");    Get_S1 (4, svc_count,                                       "svc_count");    BS_End();    for (int8u Pos=0; Pos<svc_count; Pos++)    {        Element_Begin1("svc");        bool  csn_size;        BS_Begin();        Skip_SB(                                                "reserved");        Get_SB (   csn_size,                                    "csn_size");        if (csn_size)        {            Skip_SB(                                            "reserved");            Skip_S1(5,                                          "caption_service_number");        }        else            Skip_S1(6,                                          "caption_service_number");        BS_End();        //svc_data_byte - caption_service_descriptor        Element_Begin1("service");        Ztring language;        bool digital_cc;        Get_Local(3, language,                                  "language");        BS_Begin();        Get_SB (digital_cc,                                     "digital_cc");        Skip_SB(                                                "reserved");        if (digital_cc) //line21        {            Skip_S1(5,                                          "reserved");            Skip_SB(                                            "line21_field");        }        else            Skip_S1(6,                                          "caption_service_number");        Skip_SB(                                                "easy_reader");        Skip_SB(                                                "wide_aspect_ratio");        Skip_S2(14,                                             "reserved");        BS_End();        Element_End0();        Element_End0();    }    Element_End0();}

//---------------------------------------------------------------------------// Packet "0E"void File_Vc1::EntryPointHeader(){    Element_Name("EntryPointHeader");    //Parsing    bool extended_mv;    BS_Begin();    Skip_SB(                                                    "broken_link");    Skip_SB(                                                    "closed_entry");    Get_SB (    panscan_flag,                                   "panscan_flag");    Skip_SB(                                                    "refdist_flag");    Skip_SB(                                                    "loopfilter");    Skip_SB(                                                    "fastuvmc");    Get_SB (    extended_mv,                                    "extended_mv");    Skip_S1( 2,                                                 "dquant");    Skip_SB(                                                    "vstransform");    Skip_SB(                                                    "overlap");    Skip_S1( 2,                                                 "quantizer");    if (hrd_param_flag)        for (int8u Pos=0; Pos<hrd_num_leaky_buckets; Pos++)        {            Element_Begin("leaky_bucket");            Skip_S2( 8,                                         "hrd_full");            Element_End();        }    TEST_SB_SKIP(                                               "coded_size_flag");        Info_S2(12, coded_width,                                "coded_width"); Param_Info((coded_width+1)*2, " pixels");        Info_S2(12, coded_height,                               "coded_height"); Param_Info((coded_height+1)*2, " pixels");    TEST_SB_END();    if (extended_mv)        Skip_SB(                                                "extended_dmv");    TEST_SB_SKIP(                                               "luma_sampling");        Skip_S1( 3,                                             "y_range");    TEST_SB_END();    TEST_SB_SKIP(                                               "chroma_sampling");        Skip_S1( 3,                                             "uv_range");    TEST_SB_END();    BS_End();        FILLING_BEGIN();        //NextCode        NextCode_Test();        NextCode_Clear();        NextCode_Add(0x0D);        //Autorisation of other streams        Streams[0x0D].Searching_Payload=true;        EntryPoint_Parsed=true;    FILLING_END();}

//---------------------------------------------------------------------------// AAC in ES, SBR part, 3+ bytesvoid File_Mpeg4_AudioSpecificConfig::SBR (){    //Parsing    int16u syncExtensionType;    int8u  samplingFrequencyIndex;    Element_Begin("SBR");    Get_S2 (11, syncExtensionType,                             "syncExtensionType");    if (syncExtensionType!=0x2B7)    {        Element_End();        return;    }    Get_S1 (5, extensionAudioObjectType,                        "extensionAudioObjectType");    if (extensionAudioObjectType==0x05)    {        Get_SB (   sbrPresentFlag,                              "sbrPresentFlag");        if (sbrPresentFlag)        {            Get_S1 (4, samplingFrequencyIndex,                  "extensionSamplingFrequencyIndex"); Param_Info(MP4_SamplingRate[samplingFrequencyIndex]);            if (samplingFrequencyIndex>=0xF)            {                Get_S3 (24, samplingFrequency,                  "extensionSamplingFrequency");            }            else                samplingFrequency=MP4_SamplingRate[samplingFrequencyIndex];        }    }    Element_End();    //PS stuff    if (Data_Remain())        PS();}

//---------------------------------------------------------------------------void File_MpcSv8::SH(){    //Parsing    int64u SampleCount;    int8u  Version, SampleFrequency, ChannelCount;    bool   MidSideStereo;    Skip_B4(                                                    "CRC32");    Get_B1 (Version,                                            "Version");    Get_VS (SampleCount,                                        "Sample count");    Skip_VS(                                                    "Beginning silence");    BS_Begin();    Get_S1 (3, SampleFrequency,                                 "Sample frequency"); Param_Info(Mpc_SampleFreq[SampleFrequency]);    Skip_S1(5,                                                  "Max used bands");    Get_S1 (4, ChannelCount,                                    "Channel count");    Get_SB (   MidSideStereo,                                   "Mid side stereo used");    Skip_S1(3,                                                  "Audio block frames");    BS_End();    //Filling    FILLING_BEGIN();        Fill(Stream_Audio, 0, Audio_SamplingRate, Mpc_SampleFreq[SampleFrequency]);        if (SampleCount)        {            Fill(Stream_Audio, 0, Audio_SamplingCount, SampleCount);            Fill(Stream_Audio, 0, Audio_Duration, SampleCount*1000/Mpc_SampleFreq[SampleFrequency]);            Fill(Stream_Audio, 0, Audio_BitRate, File_Size*8*Mpc_SampleFreq[SampleFrequency]/SampleCount); //Should be more precise...        }        Fill(Stream_Audio, 0, Audio_Resolution, 16); //MPC support only 16 bits    FILLING_END();}

//---------------------------------------------------------------------------void File_Vc3::CodingControlA(){    //Parsing    Element_Begin("Coding Control A", 3);    BS_Begin();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Info_S1(2, FFC,                                             "Field/Frame Count"); Param_Info(Vc3_FFC[FFC]);    Mark_1();    Mark_0();    Mark_0();    Get_SB (   CRCF,                                             "CRC flag");    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_1();    Mark_0();    Mark_1();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    BS_End();    Element_End();}

//---------------------------------------------------------------------------void File_Mpeg4_Descriptors::Descriptor_02(){    //Parsing    bool URL_Flag;    BS_Begin();    Skip_S2(10,                                                 "ObjectDescriptorID");    Get_SB (    URL_Flag,                                       "URL_Flag");    Skip_SB(                                                    "includeInlineProfileLevelFlag");    Skip_S1( 4,                                                 "reserved");    BS_End();    if (URL_Flag)    {        int8u URLlength;        Get_B1 (URLlength,                                      "URLlength");        Skip_UTF8(URLlength,                                    "URLstring");    }    Info_B1(ODProfileLevel,                                     "ODProfileLevelIndication"); Param_Info(Mpeg4_Descriptors_ODProfileLevelIndication(ODProfileLevel));    Info_B1(SceneProfileLevel,                                  "sceneProfileLevelIndication"); Param_Info(Mpeg4_Descriptors_SceneProfileLevelIndication(SceneProfileLevel));    Info_B1(AudioProfileLevel,                                  "audioProfileLevelIndication"); Param_Info(Mpeg4_Descriptors_AudioProfileLevelIndication(AudioProfileLevel));    Info_B1(VisualProfileLevel,                                 "visualProfileLevelIndication"); Param_Info(Mpeg4_Descriptors_VisualProfileLevelIndication(VisualProfileLevel));    Info_B1(GraphicsProfileLevel,                               "graphicsProfileLevelIndication"); Param_Info(Mpeg4_Descriptors_GraphicsProfileLevelIndication(GraphicsProfileLevel));    FILLING_BEGIN();        Element_ThisIsAList();    FILLING_END();}

//---------------------------------------------------------------------------void File_Vc3::TimeCode(){    //Parsing    Element_Begin1("Time Code");    bool TCP;    BS_Begin();    Get_SB (   TCP,                                             "TCP: Time Code Present");    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    Mark_0();    BS_End();    if (TCP)    {        Skip_B8(                                                "Time Code");    }    else        Skip_B8(                                                "Junk");    Element_End0();}

//---------------------------------------------------------------------------void File_Latm::StreamMuxConfig(){    Element_Begin("StreamMuxConfig");    bool audioMuxVersion;    Get_SB (audioMuxVersion,                                    "audioMuxVersion");    if (audioMuxVersion)        Get_SB (audioMuxVersionA,                               "audioMuxVersionA");    else        audioMuxVersionA=false;    if (!audioMuxVersionA)    {        if (audioMuxVersion==1)        {            //taraBufferFullness=LatmGetValue();        }        Skip_SB(                                                "allStreamsSameTimeFraming");        Skip_S1(6,                                              "numSubFrames");        Skip_S1(4,                                              "numProgram");/*        for (int8u prog=0; prog<=numProgram; prog++)        {            int8u numLayer;            Get_S1(3,                                           "numLayer");            for (lay = 0; lay <= numLayer; lay++) {progSIndx[streamCnt] = prog; laySIndx[streamCnt] = lay;streamID [ prog][ lay] = streamCnt++;if (prog == 0 && lay == 0) {useSameConfig = 0;} else {useSameConfig; 1 uimsbf}if (! useSameConfig) {if ( audioMuxVersion == 0 ) {AudioSpecificConfig();}else {ascLen = LatmGetValue();ascLen -= AudioSpecificConfig(); Note 1fillBits; ascLen bslbf}}*/    }    Element_End();}

//---------------------------------------------------------------------------void File_Bpg::Read_Buffer_Continue(){    //Parsing    Ztring Version;    int64u Width, Height;    int8u  pixelformat, BitsDepth, ColorSpace;    bool   Alpha1_flag, Alpha2_flag, ReservedZeros, limited_range_flag, ExtensionPresentFlag;    Element_Begin1("File header");    Skip_C4(                                                    "Magic"); // File Magic    BS_Begin();        Get_S1 (3, pixelformat,                                 "pixel_format"); Param_Info1(Bpg_Pixel_format(pixelformat));        Get_SB (Alpha1_flag,                                    "Alpha1 Present Flag");        Get_S1 (4, BitsDepth,                                   "bit_depth_minus_8");        Get_S1(4, ColorSpace,                                   "color_space"); Param_Info1(Bpg_ColorSpace(ColorSpace)); Param_Info1(Bpg_colour_primaries(ColorSpace));        Get_SB (ExtensionPresentFlag,                           "Extension Present Flag");        Get_SB (Alpha2_flag,                                    "Alpha2 Present Flag");        Get_SB (limited_range_flag,                             "limited_range_flag");        Get_SB (ReservedZeros,                                  "Reserved");    BS_End();    Get_VS(Width,                                               "Picture Width");    Get_VS(Height,                                              "Picture Height");    Element_End0();    FILLING_BEGIN();        Accept("BPG");        Stream_Prepare(Stream_Image);        Fill(Stream_Image, 0, Image_Width, Width);        Fill(Stream_Image, 0, Image_Height, Height);        Fill(Stream_Image, 0, Image_Format, __T("BPG"));        Fill(Stream_Image, 0, Image_ChromaSubsampling, Bpg_Pixel_format(pixelformat));        Fill(Stream_Image, 0, Image_ColorSpace, Bpg_ColorSpace(ColorSpace));        Fill(Stream_Image, 0, Image_colour_primaries, Bpg_colour_primaries(ColorSpace));        Fill(Stream_Image, 0, Image_BitDepth, BitsDepth + 8);        Fill(Stream_Image, 0, Image_Codec, __T("BPG"));    FILLING_END();    Finish("BPG");}

//---------------------------------------------------------------------------void File_OpenMG::FileHeader_Parse(){    //Parsing    int16u Size, FrameSize=0;    int8u  Flags, CodecID, SamplingRate_Code=0, Channels_Code=0;    bool  JointStereo=false;    Skip_C3(                                                    "Code");    Get_B1 (Flags,                                              "Flags");    Get_B2 (Size,                                               "Size");    Skip_XX(26,                                                 "Unknown");    Get_B1 (CodecID,                                            "Coded ID"); Param_Info1(OpenMG_CodecID_Format(CodecID));    if (CodecID<=1) //Atrac3    {        BS_Begin();        Skip_S1(7,                                              "Unknown");        Get_SB (   JointStereo,                                 "Joint Stereo");        Get_S1 (3, SamplingRate_Code,                           "Sampling Rate"); Param_Info2(OpenMG_SamplingRate(SamplingRate_Code), " Hz");        Get_S1 (3, Channels_Code,                               "Channels"); Param_Info2(OpenMG_Channels(Channels_Code), " channel(s)");        Get_S2 (10, FrameSize,                                  "Frame size");        BS_End();    }    Skip_XX(Size-Element_Offset,                                "Unknown");    FILLING_BEGIN();        if (!Status[IsAccepted])        {            File__Tags_Helper::Accept();            Fill(Stream_Audio, 0, Audio_Format, OpenMG_CodecID_Format(CodecID));            Fill(Stream_Audio, 0, Audio_Encryption, OpenMG_CodecID_Encryption(CodecID));            int64u StreamSize=(int64u)-1;            if (File_Size!=(int64u)-1)            {                StreamSize=File_Size-(Buffer_Offset+Element_Size);                Fill(Stream_Audio, 0, Audio_StreamSize, StreamSize);            }            if (CodecID<=1) // Atrac3            {                Fill(Stream_Audio, 0, Audio_Channel_s_, OpenMG_Channels(Channels_Code));                Fill(Stream_Audio, 0, Audio_ChannelPositions, OpenMG_ChannelPositions(Channels_Code));                if (Channels_Code==1 && JointStereo)                    Fill(Stream_Audio, 0, Audio_Format_Settings_Mode, "Joint Stereo");                Fill(Stream_Audio, 0, Audio_SamplingRate, OpenMG_SamplingRate(SamplingRate_Code));                if (CodecID==1) //Protected                    FrameSize++; //Not sure                FrameSize<<=3; //8-byte  blocks                int64u BitRate=OpenMG_SamplingRate(SamplingRate_Code)*FrameSize/256;                Fill(Stream_Audio, 0, Audio_BitRate, BitRate);                if (StreamSize!=(int64u)-1 && BitRate)                    Fill(Stream_Audio, 0, Audio_Duration, StreamSize*8*1000/BitRate);            }        }    FILLING_END();}

//---------------------------------------------------------------------------void File_MpcSv8::EI(){    //Parsing    int8u  Quality, Version1, Version2, Version3;    bool   PNS;    BS_Begin();    Get_S1 (7, Quality,                                         "Quality");    Get_SB (   PNS,                                             "PNS");    BS_End();    Get_B1 (Version1,                                           "Major version");    Get_B1 (Version2,                                           "Minor version");    Get_B1 (Version3,                                           "Build");}

//---------------------------------------------------------------------------void File_Gif::Read_Buffer_Continue(){    //Parsing    Ztring Version;    int16u Width, Height;    int8u  BackgroundColorIndex, PixelAspectRatio, Resolution, GCT_Size;    bool GCT_Flag, Sort;    Skip_Local(3,                                               "Header");    Get_Local (3, Version,                                      "Version");    Get_L2 (Width,                                              "Logical Screen Width");    Get_L2 (Height,                                             "Logical Screen Height");    BS_Begin();    Get_SB (   GCT_Flag,                                        "Global Color Table Flag");    Get_S1 (3, Resolution,                                      "Color Resolution");    Get_SB (   Sort,                                            "Sort Flag to Global Color Table");    Get_S1 (3, GCT_Size,                                        "Size of Global Color Table"); Param_Info(Ztring::ToZtring((int16u)pow(2.0, 1+GCT_Size)));    BS_End();    Get_L1 (BackgroundColorIndex,                               "Background Color Index");    Get_L1 (PixelAspectRatio,                                   "Pixel Aspect Ratio");    if (GCT_Flag)        Skip_XX((int16u)pow(2.0, 1+GCT_Size)*3,                 "Global Color Table");    Element_End();    FILLING_BEGIN();        Accept("GIF");        Stream_Prepare(Stream_Image);        Fill(Stream_Image, 0, Image_Width, Width);        Fill(Stream_Image, 0, Image_Height, Height);        Fill(Stream_Image, 0, Image_Format, _T("GIF"));        Fill(Stream_Image, 0, Image_Format_Profile, Version);        Fill(Stream_Image, 0, Image_Codec, _T("GIF")+Version);        Finish("GIF");    FILLING_END();}

//---------------------------------------------------------------------------void File_Flac::Header_Parse(){    //Parsing    int32u Length;    int8u BLOCK_TYPE;    BS_Begin();    Get_SB (   Last_metadata_block,                             "Last-metadata-block");    Get_S1 (7, BLOCK_TYPE,                                      "BLOCK_TYPE");    BS_End();    Get_B3 (Length,                                             "Length");    //Filling    Header_Fill_Code(BLOCK_TYPE, Ztring().From_CC1(BLOCK_TYPE));    Header_Fill_Size(Element_Offset+Length);}

//---------------------------------------------------------------------------// AAC in ES, SBR part, 3+ bytesvoid File_Mpeg4_AudioSpecificConfig::SBR (){    //Parsing    int16u syncExtensionType;    int8u  samplingFrequencyIndex;    Element_Begin("SBR");    Get_S2 (11, syncExtensionType,                             "syncExtensionType");    if (syncExtensionType!=0x2B7)    {        Element_End();        return;    }    Get_S1 (5, extensionAudioObjectType,                        "extensionAudioObjectType");    if (extensionAudioObjectType==0x05)    {        Get_SB (   sbrPresentFlag,                              "sbrPresentFlag");        if (sbrPresentFlag)        {            Get_S1 (4, samplingFrequencyIndex,                  "extensionSamplingFrequencyIndex"); Param_Info(MP4_SamplingRate[samplingFrequencyIndex]);            if (samplingFrequencyIndex==0xF)            {                Get_S3 (24, samplingFrequency,                  "extensionSamplingFrequency");            }            else                samplingFrequency=MP4_SamplingRate[samplingFrequencyIndex];        }    }    Element_End();    FILLING_BEGIN();        //Filling        if (sbrPresentFlag)        {            Fill(Stream_Audio, StreamPos_Last, Audio_Format_Settings, "SBR");            Fill(Stream_Audio, StreamPos_Last, Audio_Format_Settings_SBR, "Yes", Unlimited, true, true);            Fill(Stream_Audio, StreamPos_Last, Audio_Format_Settings_PS, "No");            Ztring Codec=Retrieve(Stream_Audio, StreamPos_Last, Audio_Codec);            Fill(Stream_Audio, StreamPos_Last, Audio_Codec, Codec+_T("/SBR"), true);            Fill(Stream_Audio, StreamPos_Last, Audio_SamplingRate, samplingFrequency, 10, true);        }        //PS stuff        if (Data_Remain())            PS();    FILLING_END();}

//---------------------------------------------------------------------------void File_Tak::STREAMINFO(){    //Parsing    int32u num_samples_hi, samplerate;    int8u  num_samples_lo, framesizecode, samplesize;    bool   channels;    Skip_L1 (                                                   "unknown");    BS_Begin();    Get_S1 ( 2, num_samples_lo,                                 "num_samples (lo)");    Get_S1 ( 3, framesizecode,                                  "framesizecode");    Skip_S1( 2,                                                 "unknown");    BS_End();    Get_L4 (num_samples_hi,                                     "num_samples (hi)"); Param_Info2((((int64u)num_samples_hi)<<2 | num_samples_lo), " samples");    Get_L3 (samplerate,                                         "samplerate"); Param_Info2((samplerate/16)+6000, " Hz");    BS_Begin();    Skip_S1( 4,                                                 "unknown");    Get_SB (    channels,                                       "channels"); Param_Info1(channels?"Stereo":"Mono");    Get_S1 ( 2, samplesize,                                     "samplesize"); Param_Info1(Tak_samplesize[samplesize]);    Skip_SB(                                                    "unknown");    BS_End();    Skip_L3(                                                    "crc");    FILLING_BEGIN()        //Coherency        if (samplerate==0)            return;        //Computing        int64u Samples=((int64u)num_samples_hi)<<2 | num_samples_lo;        int32u SamplingRate=(samplerate/16)+6000;        //Filling        File__Tags_Helper::Accept("TAK");        File__Tags_Helper::Stream_Prepare(Stream_Audio);        Fill(Stream_Audio, 0, Audio_Format, "TAK");        Fill(Stream_Audio, 0, Audio_Codec, "TAK");        Fill(Stream_Audio, 0, Audio_SamplingRate, SamplingRate);        Fill(Stream_Audio, 0, Audio_Channel_s_, channels?2:1);        if (Tak_samplesize[samplesize])            Fill(Stream_Audio, 0, Audio_BitDepth, Tak_samplesize[samplesize]);        Fill(Stream_Audio, 0, Audio_Duration, Samples*1000/SamplingRate);    FILLING_END();}