Отображение формата кодирования RIFF Wav файла - C#
Формулировка задачи:
Доброго времени суток!
Возникла такая проблема (простите нуба). При чтении Riff информации из Wav файла нужно чтобы формат кодирования отображался не просто номером(Как на скриншоте), а полноценным текстом, как в представленном файле. () И было бы идеально подключить этот файл, дабы брать информацию для отображения прямо из него.
Авось кто подскажет решение.
Заранее спасибо!
using System; using System.IO; using System.Runtime.InteropServices; namespace WavRiffAnalayzer { [StructLayout(LayoutKind.Sequential)] internal class WavHeader { public UInt32 ChunkId; public UInt32 ChunkSize; public UInt32 Format; public UInt32 Subchunk1Id; public UInt32 Subchunk1Size; public UInt16 AudioFormat; public UInt16 NumChannels; public UInt32 SampleRate; public UInt32 ByteRate; public UInt16 BlockAlign; public UInt16 BitsPerSample; public UInt32 Subchunk2Id; public UInt32 Subchunk2Size; } class Program { static void Main(string[] args) { var header = new WavHeader(); var headerSize = Marshal.SizeOf(header); System.Console.WriteLine("Введите путь к файлу."); string a = Console.ReadLine(); var fileStream = new FileStream(a, FileMode.Open, FileAccess.Read); var buffer = new byte[headerSize]; fileStream.Read(buffer, 0, headerSize); var headerPtr = Marshal.AllocHGlobal(headerSize); Marshal.Copy(buffer, 0, headerPtr, headerSize); Marshal.PtrToStructure(headerPtr, header); ushort wf = header.AudioFormat; //тут я присвоил число из riff файла к переменной wf //Console.WriteLine(wf); //энто я проверял прочиталось ли число Console.WriteLine("Формат Кодирования: {0}", header.AudioFormat); Console.WriteLine("Число каналов: {0}", header.NumChannels); Console.WriteLine("Частота дискретизации: {0}", header.SampleRate); Console.WriteLine("Битность файла: {0}", header.BitsPerSample); var Seconds = 1.0 * header.ChunkSize / (header.BitsPerSample / 8.0) / header.NumChannels / header.SampleRate; var Minutes = (int)Math.Floor(Seconds / 60); Seconds = Seconds - (Minutes * 60); Console.WriteLine("Продолжительность звучания: {0:00}:{1:00}", Minutes, Seconds); Console.ReadKey(); Marshal.FreeHGlobal(headerPtr); } }
Решение задачи: «Отображение формата кодирования RIFF Wav файла»
textual
Листинг программы
using System; using System.IO; using System.Runtime.InteropServices; class Program { public enum WavFormats : UInt16 { WAVE_FORMAT_UNKNOWN = 0x0000, /* Microsoft Corporation */ WAVE_FORMAT_PCM = 0x0001, /* Microsoft Corporation */ WAVE_FORMAT_ADPCM = 0x0002, /* Microsoft Corporation */ WAVE_FORMAT_IEEE_FLOAT = 0x0003, /* Microsoft Corporation */ WAVE_FORMAT_VSELP = 0x0004, /* Compaq Computer Corp. */ WAVE_FORMAT_IBM_CVSD = 0x0005, /* IBM Corporation */ WAVE_FORMAT_ALAW = 0x0006, /* Microsoft Corporation */ WAVE_FORMAT_MULAW = 0x0007, /* Microsoft Corporation */ WAVE_FORMAT_DTS = 0x0008, /* Microsoft Corporation */ WAVE_FORMAT_DRM = 0x0009, /* Microsoft Corporation */ WAVE_FORMAT_OKI_ADPCM = 0x0010, /* OKI */ WAVE_FORMAT_DVI_ADPCM = 0x0011, /* Intel Corporation */ WAVE_FORMAT_IMA_ADPCM = (WAVE_FORMAT_DVI_ADPCM), /* Intel Corporation */ WAVE_FORMAT_MEDIASPACE_ADPCM = 0x0012, /* Videologic */ WAVE_FORMAT_SIERRA_ADPCM = 0x0013, /* Sierra Semiconductor Corp */ WAVE_FORMAT_G723_ADPCM = 0x0014, /* Antex Electronics Corporation */ WAVE_FORMAT_DIGISTD = 0x0015, /* DSP Solutions, Inc. */ WAVE_FORMAT_DIGIFIX = 0x0016, /* DSP Solutions, Inc. */ WAVE_FORMAT_DIALOGIC_OKI_ADPCM = 0x0017, /* Dialogic Corporation */ WAVE_FORMAT_MEDIAVISION_ADPCM = 0x0018, /* Media Vision, Inc. */ WAVE_FORMAT_CU_CODEC = 0x0019, /* Hewlett-Packard Company */ WAVE_FORMAT_YAMAHA_ADPCM = 0x0020, /* Yamaha Corporation of America */ WAVE_FORMAT_SONARC = 0x0021, /* Speech Compression */ WAVE_FORMAT_DSPGROUP_TRUESPEECH = 0x0022, /* DSP Group, Inc */ WAVE_FORMAT_ECHOSC1 = 0x0023, /* Echo Speech Corporation */ WAVE_FORMAT_AUDIOFILE_AF36 = 0x0024, /* Virtual Music, Inc. */ WAVE_FORMAT_APTX = 0x0025, /* Audio Processing Technology */ WAVE_FORMAT_AUDIOFILE_AF10 = 0x0026, /* Virtual Music, Inc. */ WAVE_FORMAT_PROSODY_1612 = 0x0027, /* Aculab plc */ WAVE_FORMAT_LRC = 0x0028, /* Merging Technologies S.A. */ WAVE_FORMAT_DOLBY_AC2 = 0x0030, /* Dolby Laboratories */ WAVE_FORMAT_GSM610 = 0x0031, /* Microsoft Corporation */ WAVE_FORMAT_MSNAUDIO = 0x0032, /* Microsoft Corporation */ WAVE_FORMAT_ANTEX_ADPCME = 0x0033, /* Antex Electronics Corporation */ WAVE_FORMAT_CONTROL_RES_VQLPC = 0x0034, /* Control Resources Limited */ WAVE_FORMAT_DIGIREAL = 0x0035, /* DSP Solutions, Inc. */ WAVE_FORMAT_DIGIADPCM = 0x0036, /* DSP Solutions, Inc. */ WAVE_FORMAT_CONTROL_RES_CR10 = 0x0037, /* Control Resources Limited */ WAVE_FORMAT_NMS_VBXADPCM = 0x0038, /* Natural MicroSystems */ WAVE_FORMAT_CS_IMAADPCM = 0x0039, /* Crystal Semiconductor IMA ADPCM */ WAVE_FORMAT_ECHOSC3 = 0x003A, /* Echo Speech Corporation */ WAVE_FORMAT_ROCKWELL_ADPCM = 0x003B, /* Rockwell International */ WAVE_FORMAT_ROCKWELL_DIGITALK = 0x003C, /* Rockwell International */ WAVE_FORMAT_XEBEC = 0x003D, /* Xebec Multimedia Solutions Limited */ WAVE_FORMAT_G721_ADPCM = 0x0040, /* Antex Electronics Corporation */ WAVE_FORMAT_G728_CELP = 0x0041, /* Antex Electronics Corporation */ WAVE_FORMAT_MSG723 = 0x0042, /* Microsoft Corporation */ WAVE_FORMAT_MPEG = 0x0050, /* Microsoft Corporation */ WAVE_FORMAT_RT24 = 0x0052, /* InSoft, Inc. */ WAVE_FORMAT_PAC = 0x0053, /* InSoft, Inc. */ WAVE_FORMAT_MPEGLAYER3 = 0x0055, /* ISO/MPEG Layer3 Format Tag */ WAVE_FORMAT_LUCENT_G723 = 0x0059, /* Lucent Technologies */ WAVE_FORMAT_CIRRUS = 0x0060, /* Cirrus Logic */ WAVE_FORMAT_ESPCM = 0x0061, /* ESS Technology */ WAVE_FORMAT_VOXWARE = 0x0062, /* Voxware Inc */ WAVE_FORMAT_CANOPUS_ATRAC = 0x0063, /* Canopus, co., Ltd. */ WAVE_FORMAT_G726_ADPCM = 0x0064, /* APICOM */ WAVE_FORMAT_G722_ADPCM = 0x0065, /* APICOM */ WAVE_FORMAT_DSAT_DISPLAY = 0x0067, /* Microsoft Corporation */ WAVE_FORMAT_VOXWARE_BYTE_ALIGNED = 0x0069, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_AC8 = 0x0070, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_AC10 = 0x0071, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_AC16 = 0x0072, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_AC20 = 0x0073, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_RT24 = 0x0074, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_RT29 = 0x0075, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_RT29HW = 0x0076, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_VR12 = 0x0077, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_VR18 = 0x0078, /* Voxware Inc */ WAVE_FORMAT_VOXWARE_TQ40 = 0x0079, /* Voxware Inc */ WAVE_FORMAT_SOFTSOUND = 0x0080, /* Softsound, Ltd. */ WAVE_FORMAT_VOXWARE_TQ60 = 0x0081, /* Voxware Inc */ WAVE_FORMAT_MSRT24 = 0x0082, /* Microsoft Corporation */ WAVE_FORMAT_G729A = 0x0083, /* AT&T Labs, Inc. */ WAVE_FORMAT_MVI_MVI2 = 0x0084, /* Motion Pixels */ WAVE_FORMAT_DF_G726 = 0x0085, /* DataFusion Systems (Pty) (Ltd) */ WAVE_FORMAT_DF_GSM610 = 0x0086, /* DataFusion Systems (Pty) (Ltd) */ WAVE_FORMAT_ISIAUDIO = 0x0088, /* Iterated Systems, Inc. */ WAVE_FORMAT_ONLIVE = 0x0089, /* OnLive! Technologies, Inc. */ WAVE_FORMAT_SBC24 = 0x0091, /* Siemens Business Communications Sys */ WAVE_FORMAT_DOLBY_AC3_SPDIF = 0x0092, /* Sonic Foundry */ WAVE_FORMAT_MEDIASONIC_G723 = 0x0093, /* MediaSonic */ WAVE_FORMAT_PROSODY_8KBPS = 0x0094, /* Aculab plc */ WAVE_FORMAT_ZYXEL_ADPCM = 0x0097, /* ZyXEL Communications, Inc. */ WAVE_FORMAT_PHILIPS_LPCBB = 0x0098, /* Philips Speech Processing */ WAVE_FORMAT_PACKED = 0x0099, /* Studer Professional Audio AG */ WAVE_FORMAT_MALDEN_PHONYTALK = 0x00A0, /* Malden Electronics Ltd. */ WAVE_FORMAT_RHETOREX_ADPCM = 0x0100, /* Rhetorex Inc. */ WAVE_FORMAT_IRAT = 0x0101, /* BeCubed Software Inc. */ WAVE_FORMAT_VIVO_G723 = 0x0111, /* Vivo Software */ WAVE_FORMAT_VIVO_SIREN = 0x0112, /* Vivo Software */ WAVE_FORMAT_DIGITAL_G723 = 0x0123, /* Digital Equipment Corporation */ WAVE_FORMAT_SANYO_LD_ADPCM = 0x0125, /* Sanyo Electric Co., Ltd. */ WAVE_FORMAT_SIPROLAB_ACEPLNET = 0x0130, /* Sipro Lab Telecom Inc. */ WAVE_FORMAT_SIPROLAB_ACELP4800 = 0x0131, /* Sipro Lab Telecom Inc. */ WAVE_FORMAT_SIPROLAB_ACELP8V3 = 0x0132, /* Sipro Lab Telecom Inc. */ WAVE_FORMAT_SIPROLAB_G729 = 0x0133, /* Sipro Lab Telecom Inc. */ WAVE_FORMAT_SIPROLAB_G729A = 0x0134, /* Sipro Lab Telecom Inc. */ WAVE_FORMAT_SIPROLAB_KELVIN = 0x0135, /* Sipro Lab Telecom Inc. */ WAVE_FORMAT_G726ADPCM = 0x0140, /* Dictaphone Corporation */ WAVE_FORMAT_QUALCOMM_PUREVOICE = 0x0150, /* Qualcomm, Inc. */ WAVE_FORMAT_QUALCOMM_HALFRATE = 0x0151, /* Qualcomm, Inc. */ WAVE_FORMAT_TUBGSM = 0x0155, /* Ring Zero Systems, Inc. */ WAVE_FORMAT_MSAUDIO1 = 0x0160, /* Microsoft Corporation */ WAVE_FORMAT_UNISYS_NAP_ADPCM = 0x0170, /* Unisys Corp. */ WAVE_FORMAT_UNISYS_NAP_ULAW = 0x0171, /* Unisys Corp. */ WAVE_FORMAT_UNISYS_NAP_ALAW = 0x0172, /* Unisys Corp. */ WAVE_FORMAT_UNISYS_NAP_16K = 0x0173, /* Unisys Corp. */ WAVE_FORMAT_CREATIVE_ADPCM = 0x0200, /* Creative Labs, Inc */ WAVE_FORMAT_CREATIVE_FASTSPEECH8 = 0x0202, /* Creative Labs, Inc */ WAVE_FORMAT_CREATIVE_FASTSPEECH10 = 0x0203, /* Creative Labs, Inc */ WAVE_FORMAT_UHER_ADPCM = 0x0210, /* UHER informatic GmbH */ WAVE_FORMAT_QUARTERDECK = 0x0220, /* Quarterdeck Corporation */ WAVE_FORMAT_ILINK_VC = 0x0230, /* I-link Worldwide */ WAVE_FORMAT_RAW_SPORT = 0x0240, /* Aureal Semiconductor */ WAVE_FORMAT_ESST_AC3 = 0x0241, /* ESS Technology, Inc. */ WAVE_FORMAT_IPI_HSX = 0x0250, /* Interactive Products, Inc. */ WAVE_FORMAT_IPI_RPELP = 0x0251, /* Interactive Products, Inc. */ WAVE_FORMAT_CS2 = 0x0260, /* Consistent Software */ WAVE_FORMAT_SONY_SCX = 0x0270, /* Sony Corp. */ WAVE_FORMAT_FM_TOWNS_SND = 0x0300, /* Fujitsu Corp. */ WAVE_FORMAT_BTV_DIGITAL = 0x0400, /* Brooktree Corporation */ WAVE_FORMAT_QDESIGN_MUSIC = 0x0450, /* QDesign Corporation */ WAVE_FORMAT_VME_VMPCM = 0x0680, /* AT&T Labs, Inc. */ WAVE_FORMAT_TPC = 0x0681, /* AT&T Labs, Inc. */ WAVE_FORMAT_OLIGSM = 0x1000, /* Ing C. Olivetti & C., S.p.A. */ WAVE_FORMAT_OLIADPCM = 0x1001, /* Ing C. Olivetti & C., S.p.A. */ WAVE_FORMAT_OLICELP = 0x1002, /* Ing C. Olivetti & C., S.p.A. */ WAVE_FORMAT_OLISBC = 0x1003, /* Ing C. Olivetti & C., S.p.A. */ WAVE_FORMAT_OLIOPR = 0x1004, /* Ing C. Olivetti & C., S.p.A. */ WAVE_FORMAT_LH_CODEC = 0x1100, /* Lernout & Hauspie */ WAVE_FORMAT_NORRIS = 0x1400, /* Norris Communications, Inc. */ WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS = 0x1500, /* AT&T Labs, Inc. */ WAVE_FORMAT_DVM = 0x2000 /* FAST Multimedia AG */ } [StructLayout(LayoutKind.Sequential)] public class WavHeader { public UInt32 ChunkId; public UInt32 ChunkSize; public UInt32 Format; public UInt32 Subchunk1Id; public UInt32 Subchunk1Size; public WavFormats AudioFormat; public UInt16 NumChannels; public UInt32 SampleRate; public UInt32 ByteRate; public UInt16 BlockAlign; public UInt16 BitsPerSample; public UInt32 Subchunk2Id; public UInt32 Subchunk2Size; } static void Main(string[] args) { var header = new WavHeader(); var headerSize = Marshal.SizeOf(header); System.Console.WriteLine("Введите путь к файлу."); string a = Console.ReadLine(); var fileStream = new FileStream(a, FileMode.Open, FileAccess.Read); var buffer = new byte[headerSize]; fileStream.Read(buffer, 0, headerSize); var headerPtr = Marshal.AllocHGlobal(headerSize); Marshal.Copy(buffer, 0, headerPtr, headerSize); Marshal.PtrToStructure(headerPtr, header); WavFormats wf = header.AudioFormat; //тут я присвоил число из riff файла к переменной wf //Console.WriteLine(wf); //энто я проверял прочиталось ли число Console.WriteLine("Формат Кодирования: {0}", header.AudioFormat); Console.WriteLine("Число каналов: {0}", header.NumChannels); Console.WriteLine("Частота дискретизации: {0}", header.SampleRate); Console.WriteLine("Битность файла: {0}", header.BitsPerSample); var Seconds = 1.0 * header.ChunkSize / (header.BitsPerSample / 8.0) / header.NumChannels / header.SampleRate; var Minutes = (int)Math.Floor(Seconds / 60); Seconds = Seconds - (Minutes * 60); Console.WriteLine("Продолжительность звучания: {0:00}:{1:00}", Minutes, Seconds); Marshal.FreeHGlobal(headerPtr); Console.ReadKey(true); } }
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