/***************************************************************************** * vlc_codecs.h: codec related structures needed by the demuxers and decoders ***************************************************************************** * Copyright (C) 1999-2001 VLC authors and VideoLAN * $Id$ * * Author: Gildas Bazin * * 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 VLC_CODECS_H #define VLC_CODECS_H 1 #include /** * \file * This file defines codec related structures needed by the demuxers and decoders */ /* Structures exported to the demuxers and decoders */ #if !(defined _GUID_DEFINED || defined GUID_DEFINED) #define GUID_DEFINED typedef struct _GUID { uint32_t Data1; uint16_t Data2; uint16_t Data3; uint8_t Data4[8]; } GUID, *REFGUID, *LPGUID; #endif /* GUID_DEFINED */ typedef GUID guid_t; #ifdef HAVE_ATTRIBUTE_PACKED # define ATTR_PACKED __attribute__((__packed__)) #elif defined(__SUNPRO_C) || defined(_MSC_VER) # pragma pack(1) # define ATTR_PACKED #elif defined(__APPLE__) # pragma pack(push, 1) # define ATTR_PACKED #else # error FIXME #endif #ifndef _WAVEFORMATEX_ #define _WAVEFORMATEX_ typedef struct ATTR_PACKED _WAVEFORMATEX { uint16_t wFormatTag; uint16_t nChannels; uint32_t nSamplesPerSec; uint32_t nAvgBytesPerSec; uint16_t nBlockAlign; uint16_t wBitsPerSample; uint16_t cbSize; } WAVEFORMATEX, *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX; #endif /* _WAVEFORMATEX_ */ #ifndef _WAVEFORMATEXTENSIBLE_ #define _WAVEFORMATEXTENSIBLE_ typedef struct ATTR_PACKED _WAVEFORMATEXTENSIBLE { WAVEFORMATEX Format; union { uint16_t wValidBitsPerSample; /* bits of precision */ uint16_t wSamplesPerBlock; /* valid if wBitsPerSample==0 */ uint16_t wReserved; /* If neither applies, set to zero. */ } Samples; uint32_t dwChannelMask; /* Channels present */ GUID SubFormat; } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE; #endif /* _WAVEFORMATEXTENSIBLE_ */ #ifndef _WAVEFORMATEXTENSIBLE_IEC61937_ #define _WAVEFORMATEXTENSIBLE_IEC61937_ typedef struct ATTR_PACKED _WAVEFORMATEXTENSIBLE_IEC61937 { WAVEFORMATEXTENSIBLE FormatExt; uint32_t dwEncodedSamplesPerSec; uint32_t dwEncodedChannelCount; uint32_t dwAverageBytesPerSec; } WAVEFORMATEXTENSIBLE_IEC61937, *PWAVEFORMATEXTENSIBLE_IEC61937; #endif /* _WAVEFORMATEXTENSIBLE_IEC61937_ */ #ifndef _WAVEHEADER_ #define _WAVEHEADER_ typedef struct ATTR_PACKED _WAVEHEADER { uint32_t MainChunkID; uint32_t Length; uint32_t ChunkTypeID; uint32_t SubChunkID; uint32_t SubChunkLength; uint16_t Format; uint16_t Modus; uint32_t SampleFreq; uint32_t BytesPerSec; uint16_t BytesPerSample; uint16_t BitsPerSample; uint32_t DataChunkID; uint32_t DataLength; } WAVEHEADER; #endif /* _WAVEHEADER_ */ #ifndef _VLC_BITMAPINFOHEADER_ #define _VLC_BITMAPINFOHEADER_ typedef struct ATTR_PACKED { uint32_t biSize; uint32_t biWidth; uint32_t biHeight; uint16_t biPlanes; uint16_t biBitCount; uint32_t biCompression; uint32_t biSizeImage; uint32_t biXPelsPerMeter; uint32_t biYPelsPerMeter; uint32_t biClrUsed; uint32_t biClrImportant; } VLC_BITMAPINFOHEADER, *VLC_PBITMAPINFOHEADER, *VLC_LPBITMAPINFOHEADER; typedef struct ATTR_PACKED { VLC_BITMAPINFOHEADER bmiHeader; int bmiColors[1]; } VLC_BITMAPINFO, *VLC_LPBITMAPINFO; #endif #ifndef _RECT32_ #define _RECT32_ typedef struct ATTR_PACKED { int left, top, right, bottom; } RECT32; #endif #ifndef _REFERENCE_TIME_ #define _REFERENCE_TIME_ typedef int64_t REFERENCE_TIME; #endif #ifndef _VIDEOINFOHEADER_ #define _VIDEOINFOHEADER_ typedef struct ATTR_PACKED { RECT32 rcSource; RECT32 rcTarget; uint32_t dwBitRate; uint32_t dwBitErrorRate; REFERENCE_TIME AvgTimePerFrame; VLC_BITMAPINFOHEADER bmiHeader; } VIDEOINFOHEADER; #endif #if defined(__SUNPRO_C) || defined(_MSC_VER) # pragma pack() #elif defined(__APPLE__) && !HAVE_ATTRIBUTE_PACKED # pragma pack(pop) #endif /* WAVE format wFormatTag IDs */ /* See http://msdn.microsoft.com/en-us/library/aa904731%28v=vs.80%29.aspx */ #define WAVE_FORMAT_UNKNOWN 0x0000 /* Microsoft Corporation */ #define WAVE_FORMAT_PCM 0x0001 /* Microsoft Corporation */ #define WAVE_FORMAT_ADPCM 0x0002 /* Microsoft Corporation */ #define WAVE_FORMAT_IEEE_FLOAT 0x0003 /* Microsoft Corporation */ #define WAVE_FORMAT_ALAW 0x0006 /* Microsoft Corporation */ #define WAVE_FORMAT_MULAW 0x0007 /* Microsoft Corporation */ #define WAVE_FORMAT_DTS_MS 0x0008 /* Microsoft Corporation */ #define WAVE_FORMAT_WMAS 0x000a /* WMA 9 Speech */ #define WAVE_FORMAT_IMA_ADPCM 0x0011 /* Intel Corporation */ #define WAVE_FORMAT_YAMAHA_ADPCM 0x0020 /* Yamaha */ #define WAVE_FORMAT_TRUESPEECH 0x0022 /* TrueSpeech */ #define WAVE_FORMAT_GSM610 0x0031 /* Microsoft Corporation */ #define WAVE_FORMAT_MSNAUDIO 0x0032 /* Microsoft Corporation */ #define WAVE_FORMAT_AMR_NB_2 0x0038 /* AMR NB rogue */ #define WAVE_FORMAT_MSG723 0x0042 /* Microsoft G.723 [G723.1] */ #define WAVE_FORMAT_G726 0x0045 /* ITU-T standard */ #define WAVE_FORMAT_MPEG 0x0050 /* Microsoft Corporation */ #define WAVE_FORMAT_MPEGLAYER3 0x0055 /* ISO/MPEG Layer3 Format Tag */ #define WAVE_FORMAT_AMR_NB 0x0057 /* AMR NB */ #define WAVE_FORMAT_AMR_WB 0x0058 /* AMR Wideband */ #define WAVE_FORMAT_G726_ADPCM 0x0064 /* G.726 ADPCM */ #define WAVE_FORMAT_VOXWARE_RT29 0x0075 /* VoxWare MetaSound */ #define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092 /* Sonic Foundry */ #define WAVE_FORMAT_VIVOG723 0x0111 /* Vivo G.723.1 */ #define WAVE_FORMAT_AAC 0x00FF /* */ #define WAVE_FORMAT_AAC_MS 0xa106 /* Microsoft AAC */ #define WAVE_FORMAT_SIPRO 0x0130 /* Sipro Lab Telecom Inc. */ #define WAVE_FORMAT_WMA1 0x0160 /* WMA version 1 */ #define WAVE_FORMAT_WMA2 0x0161 /* WMA (v2) 7, 8, 9 Series */ #define WAVE_FORMAT_WMAP 0x0162 /* WMA 9 Professional */ #define WAVE_FORMAT_WMAL 0x0163 /* WMA 9 Lossless */ #define WAVE_FORMAT_CREATIVE_ADPCM 0x0200 /* Creative */ #define WAVE_FORMAT_ULEAD_DV_AUDIO_NTSC 0x0215 /* Ulead */ #define WAVE_FORMAT_ULEAD_DV_AUDIO_PAL 0x0216 /* Ulead */ #define WAVE_FORMAT_ATRAC3 0x0270 /* Atrac3, != from MSDN doc */ #define WAVE_FORMAT_SONY_ATRAC3 0x0272 /* Atrac3, != from MSDN doc */ #define WAVE_FORMAT_IMC 0x0401 #define WAVE_FORMAT_INDEO_AUDIO 0x0402 /* Indeo Audio Coder */ #define WAVE_FORMAT_ON2_AVC 0x0500 /* VP7 */ #define WAVE_FORMAT_ON2_AVC_2 0x0501 /* VP6 */ #define WAVE_FORMAT_QNAP_ADTS 0x0AAC /* Qnap ADTS */ #define WAVE_FORMAT_AAC_ADTS 0x1600 /* AAC/ADTS */ #define WAVE_FORMAT_AAC_2 0x1601 /* Other AAC */ #define WAVE_FORMAT_AAC_LATM 0x1602 /* AAC/LATM */ #define WAVE_FORMAT_HEAAC 0x1610 /* Raw AAC or ADTS */ #define WAVE_FORMAT_A52 0x2000 /* a52 */ #define WAVE_FORMAT_DTS 0x2001 /* DTS */ #define WAVE_FORMAT_ALAC 0x6c61 #define WAVE_FORMAT_OPUS 0x704f #define WAVE_FORMAT_AVCODEC_AAC 0x706D #define WAVE_FORMAT_DIVIO_AAC 0x4143 /* Divio's AAC */ #define WAVE_FORMAT_GSM_AMR_FIXED 0x7A21 /* Fixed bitrate, no SID */ #define WAVE_FORMAT_GSM_AMR 0x7A22 /* Variable bitrate, including SID */ #define WAVE_FORMAT_DK3 0x0062 #define WAVE_FORMAT_DK4 0x0061 /* At least libavformat use that ID: from libavformat/riff.c ('Vo' == 0x566f) * { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id? */ #define WAVE_FORMAT_VORBIS 0x566f /* It seems that these IDs are used by braindead & obsolete VorbisACM encoder * (Windows only) * A few info is available except VorbisACM source (remember, Windows only) * (available on http://svn.xiph.org), but it seems that vo3+ at least is * made of Vorbis data encapsulated in Ogg container... */ #define WAVE_FORMAT_VORB_1 0x674f #define WAVE_FORMAT_VORB_2 0x6750 #define WAVE_FORMAT_VORB_3 0x6751 #define WAVE_FORMAT_VORB_1PLUS 0x676f #define WAVE_FORMAT_VORB_2PLUS 0x6770 #define WAVE_FORMAT_VORB_3PLUS 0x6771 #define WAVE_FORMAT_G723_1 0xa100 #define WAVE_FORMAT_AAC_3 0xa106 #define WAVE_FORMAT_SPEEX 0xa109 /* Speex audio */ #define WAVE_FORMAT_FLAC 0xf1ac /* Xiph Flac */ #if !defined(WAVE_FORMAT_EXTENSIBLE) #define WAVE_FORMAT_EXTENSIBLE 0xFFFE /* Microsoft */ #endif /* GUID SubFormat IDs */ #define VLC_KSDATAFORMAT_SUBTYPE_ATRAC3P {0xE923AABF, 0xCB58, 0x4471, {0xA1, 0x19, 0xFF, 0xFA, 0x01, 0xE4, 0xCE, 0x62}} /* Undocumented */ #define VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN {0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}} #define VLC_WAVEFORMATEX_GUIDBASE {0x00000000, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} /* Generated from Wave Format */ #define VLC_AMBISONIC_SUBTYPE_PCM {0x00000001, 0x0721, 0x11D3, {0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00}} /* AMBISONIC_B_FORMAT_PCM */ #define VLC_AMBISONIC_SUBTYPE_IEEE_FLOAT {0x00000003, 0x0721, 0x11D3, {0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00}} /* AMBISONIC_B_FORMAT_IEEE_FLOAT */ /* Microsoft speaker definitions */ #define WAVE_SPEAKER_FRONT_LEFT 0x1 #define WAVE_SPEAKER_FRONT_RIGHT 0x2 #define WAVE_SPEAKER_FRONT_CENTER 0x4 #define WAVE_SPEAKER_LOW_FREQUENCY 0x8 #define WAVE_SPEAKER_BACK_LEFT 0x10 #define WAVE_SPEAKER_BACK_RIGHT 0x20 #define WAVE_SPEAKER_FRONT_LEFT_OF_CENTER 0x40 #define WAVE_SPEAKER_FRONT_RIGHT_OF_CENTER 0x80 #define WAVE_SPEAKER_BACK_CENTER 0x100 #define WAVE_SPEAKER_SIDE_LEFT 0x200 #define WAVE_SPEAKER_SIDE_RIGHT 0x400 #define WAVE_SPEAKER_TOP_CENTER 0x800 #define WAVE_SPEAKER_TOP_FRONT_LEFT 0x1000 #define WAVE_SPEAKER_TOP_FRONT_CENTER 0x2000 #define WAVE_SPEAKER_TOP_FRONT_RIGHT 0x4000 #define WAVE_SPEAKER_TOP_BACK_LEFT 0x8000 #define WAVE_SPEAKER_TOP_BACK_CENTER 0x10000 #define WAVE_SPEAKER_TOP_BACK_RIGHT 0x20000 #define WAVE_SPEAKER_RESERVED 0x80000000 static const struct { uint16_t i_tag; vlc_fourcc_t i_fourcc; const char *psz_name; } wave_format_tag_to_fourcc[] = { { WAVE_FORMAT_PCM, VLC_FOURCC( 'a', 'r', 'a', 'w' ), "Raw audio" }, { WAVE_FORMAT_PCM, VLC_CODEC_S8, "PCM S8 audio" }, { WAVE_FORMAT_PCM, VLC_CODEC_S16L, "PCM S16L audio" }, { WAVE_FORMAT_PCM, VLC_CODEC_S24L, "PCM S24L audio" }, { WAVE_FORMAT_PCM, VLC_CODEC_S32L, "PCM S32L audio" }, { WAVE_FORMAT_ADPCM, VLC_CODEC_ADPCM_MS, "ADPCM" }, { WAVE_FORMAT_IEEE_FLOAT, VLC_FOURCC( 'a', 'f', 'l', 't' ), "IEEE Float audio" }, { WAVE_FORMAT_IEEE_FLOAT, VLC_CODEC_F32L, "PCM 32 (Float) audio" }, { WAVE_FORMAT_IEEE_FLOAT, VLC_CODEC_F64L, "PCM 64 (Float) audio" }, { WAVE_FORMAT_ALAW, VLC_CODEC_ALAW, "A-Law" }, { WAVE_FORMAT_MULAW, VLC_CODEC_MULAW, "Mu-Law" }, { WAVE_FORMAT_IMA_ADPCM, VLC_CODEC_ADPCM_IMA_WAV, "Ima-ADPCM" }, { WAVE_FORMAT_CREATIVE_ADPCM, VLC_CODEC_ADPCM_CREATIVE, "Creative ADPCM" }, { WAVE_FORMAT_YAMAHA_ADPCM, VLC_CODEC_ADPCM_YAMAHA, "Yamaha ADPCM" }, { WAVE_FORMAT_TRUESPEECH, VLC_CODEC_TRUESPEECH, "Truespeech" }, { WAVE_FORMAT_GSM610, VLC_CODEC_GSM_MS, "Microsoft WAV GSM" }, { WAVE_FORMAT_MSNAUDIO, VLC_CODEC_GSM_MS, "Microsoft MSN Audio" }, { WAVE_FORMAT_G726, VLC_CODEC_ADPCM_G726, "G.726 ADPCM" }, { WAVE_FORMAT_G726_ADPCM, VLC_CODEC_ADPCM_G726, "G.726 ADPCM" }, { WAVE_FORMAT_G723_1, VLC_CODEC_G723_1, "G.723.1" }, { WAVE_FORMAT_MSG723, VLC_CODEC_G723_1, "Microsoft G.723 [G723.1]" }, { WAVE_FORMAT_VIVOG723, VLC_CODEC_G723_1, "Vivo G.723.1" }, { WAVE_FORMAT_MPEGLAYER3, VLC_CODEC_MP3, "Mpeg Audio Layer 3" }, { WAVE_FORMAT_MPEG, VLC_CODEC_MPGA, "Mpeg Audio" }, { WAVE_FORMAT_AMR_NB, VLC_CODEC_AMR_NB, "AMR NB" }, { WAVE_FORMAT_AMR_NB_2, VLC_CODEC_AMR_NB, "AMR NB" }, { WAVE_FORMAT_AMR_WB, VLC_CODEC_AMR_WB, "AMR Wideband" }, { WAVE_FORMAT_SIPRO, VLC_CODEC_SIPR, "Sipr Audio" }, { WAVE_FORMAT_A52, VLC_CODEC_A52, "A/52" }, { WAVE_FORMAT_WMA1, VLC_CODEC_WMA1, "Window Media Audio v1" }, { WAVE_FORMAT_WMA2, VLC_CODEC_WMA2, "Window Media Audio v2" }, { WAVE_FORMAT_WMAP, VLC_CODEC_WMAP, "Window Media Audio 9 Professional" }, { WAVE_FORMAT_WMAL, VLC_CODEC_WMAL, "Window Media Audio 9 Lossless" }, { WAVE_FORMAT_WMAS, VLC_CODEC_WMAS, "Window Media Audio 9 Speech" }, { WAVE_FORMAT_ATRAC3, VLC_CODEC_ATRAC3, "Sony Atrac3" }, { WAVE_FORMAT_SONY_ATRAC3, VLC_CODEC_ATRAC3, "Sony Atrac3" }, { WAVE_FORMAT_DK3, VLC_CODEC_ADPCM_DK3, "Duck DK3" }, { WAVE_FORMAT_DK4, VLC_CODEC_ADPCM_DK4, "Duck DK4" }, { WAVE_FORMAT_DTS, VLC_CODEC_DTS, "DTS Coherent Acoustics" }, { WAVE_FORMAT_DTS_MS, VLC_CODEC_DTS, "DTS Coherent Acoustics" }, { WAVE_FORMAT_DIVIO_AAC, VLC_CODEC_MP4A, "MPEG-4 Audio (Divio)" }, { WAVE_FORMAT_AAC, VLC_CODEC_MP4A, "MPEG-4 Audio" }, { WAVE_FORMAT_QNAP_ADTS, VLC_CODEC_MP4A, "MPEG-4 ADTS Audio" }, { WAVE_FORMAT_AAC_ADTS, VLC_CODEC_MP4A, "MPEG-4 ADTS Audio" }, { WAVE_FORMAT_AAC_2, VLC_CODEC_MP4A, "MPEG-4 Audio" }, { WAVE_FORMAT_AAC_3, VLC_CODEC_MP4A, "MPEG-4 Audio" }, { WAVE_FORMAT_AAC_LATM, VLC_CODEC_MP4A, "MPEG-4 LATM Audio" }, { WAVE_FORMAT_HEAAC, VLC_CODEC_MP4A, "MPEG-4 Audio" }, { WAVE_FORMAT_ALAC, VLC_CODEC_ALAC, "Apple Lossless" }, { WAVE_FORMAT_OPUS, VLC_CODEC_OPUS, "Opus Audio" }, { WAVE_FORMAT_AVCODEC_AAC, VLC_CODEC_MP4A, "MPEG-4 Audio" }, { WAVE_FORMAT_AAC_MS, VLC_CODEC_MP4A, "MPEG-4 Audio" }, { WAVE_FORMAT_VORBIS, VLC_CODEC_VORBIS, "Vorbis Audio" }, { WAVE_FORMAT_VORB_1, VLC_FOURCC( 'v', 'o', 'r', '1' ), "Vorbis 1 Audio" }, { WAVE_FORMAT_VORB_1PLUS, VLC_FOURCC( 'v', 'o', '1', '+' ), "Vorbis 1+ Audio" }, { WAVE_FORMAT_VORB_2, VLC_FOURCC( 'v', 'o', 'r', '2' ), "Vorbis 2 Audio" }, { WAVE_FORMAT_VORB_2PLUS, VLC_FOURCC( 'v', 'o', '2', '+' ), "Vorbis 2+ Audio" }, { WAVE_FORMAT_VORB_3, VLC_FOURCC( 'v', 'o', 'r', '3' ), "Vorbis 3 Audio" }, { WAVE_FORMAT_VORB_3PLUS, VLC_FOURCC( 'v', 'o', '3', '+' ), "Vorbis 3+ Audio" }, { WAVE_FORMAT_SPEEX, VLC_CODEC_SPEEX, "Speex Audio" }, { WAVE_FORMAT_FLAC, VLC_CODEC_FLAC, "FLAC Audio" }, { WAVE_FORMAT_GSM_AMR_FIXED, VLC_CODEC_AMR_NB, "GSM-AMR Audio CBR, no SID" }, { WAVE_FORMAT_GSM_AMR, VLC_CODEC_AMR_NB, "GSM-AMR Audio VBR, SID" }, { WAVE_FORMAT_ULEAD_DV_AUDIO_NTSC, VLC_CODEC_ULEAD_DV_AUDIO_NTSC, "Ulead DV audio NTSC" }, { WAVE_FORMAT_ULEAD_DV_AUDIO_PAL, VLC_CODEC_ULEAD_DV_AUDIO_PAL, "Ulead DV audio PAL" }, { WAVE_FORMAT_IMC, VLC_CODEC_IMC, "IMC" }, { WAVE_FORMAT_INDEO_AUDIO, VLC_CODEC_INDEO_AUDIO, "Indeo Audio Coder" }, { WAVE_FORMAT_VOXWARE_RT29, VLC_CODEC_METASOUND, "VoxWare MetaSound" }, { WAVE_FORMAT_ON2_AVC, VLC_CODEC_ON2AVC, "On2 Audio for Video Codec (VP7)" }, { WAVE_FORMAT_ON2_AVC_2, VLC_CODEC_ON2AVC, "On2 Audio for Video Codec (VP6)" }, { WAVE_FORMAT_UNKNOWN, VLC_CODEC_UNKNOWN, "Unknown" } }; static inline void wf_tag_to_fourcc( uint16_t i_tag, vlc_fourcc_t *fcc, const char **ppsz_name ) { int i; for( i = 0; wave_format_tag_to_fourcc[i].i_tag != 0; i++ ) { if( wave_format_tag_to_fourcc[i].i_tag == i_tag ) break; } if( fcc ) *fcc = wave_format_tag_to_fourcc[i].i_fourcc; if( ppsz_name ) *ppsz_name = wave_format_tag_to_fourcc[i].psz_name; } static inline void fourcc_to_wf_tag( vlc_fourcc_t fcc, uint16_t *pi_tag ) { int i; for( i = 0; wave_format_tag_to_fourcc[i].i_tag != 0; i++ ) { if( wave_format_tag_to_fourcc[i].i_fourcc == fcc ) break; } if( pi_tag ) *pi_tag = wave_format_tag_to_fourcc[i].i_tag; } /* If wFormatTag is WAVEFORMATEXTENSIBLE, we must look at the SubFormat tag * to determine the actual format. Microsoft has stopped giving out wFormatTag * assignments in lieu of letting 3rd parties generate their own GUIDs */ static const struct { const GUID guid_tag; const vlc_fourcc_t i_fourcc; const char *psz_name; } sub_format_tag_to_fourcc[] = { { VLC_AMBISONIC_SUBTYPE_PCM, VLC_FOURCC( 'a', 'r', 'a', 'w' ), "Ambisonic B format (PCM)" }, { VLC_AMBISONIC_SUBTYPE_IEEE_FLOAT, VLC_FOURCC( 'a', 'f', 'l', 't' ), "Ambisonic B format (IEEE float)" }, { VLC_KSDATAFORMAT_SUBTYPE_ATRAC3P, VLC_CODEC_ATRAC3P, "Sony Atrac3+" }, { VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN, VLC_CODEC_UNKNOWN, "Unknown" } }; static inline int guidcmpbase( const GUID *s1, const GUID *s2 ) { return( s1->Data2 == s2->Data2 && s1->Data3 == s2->Data3 && !memcmp( s1->Data4, s2->Data4, 8 ) ); } /* compares two GUIDs, returns 1 if identical, 0 otherwise */ static inline int guidcmp( const GUID *s1, const GUID *s2 ) { return( s1->Data1 == s2->Data1 && guidcmpbase( s1, s2 ) ); } #define GUID_FMT "0x%8.8x-0x%4.4x-0x%4.4x-0x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x" #define GUID_PRINT( guid ) \ (unsigned)(guid).Data1, \ (guid).Data2, \ (guid).Data3, \ (guid).Data4[0],(guid).Data4[1],(guid).Data4[2],(guid).Data4[3], \ (guid).Data4[4],(guid).Data4[5],(guid).Data4[6],(guid).Data4[7] static inline void sf_tag_to_fourcc( const GUID *guid_tag, vlc_fourcc_t *fcc, const char **ppsz_name ) { int i; bool b_found = false; const GUID unknown = VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN; const GUID waveformatex = VLC_WAVEFORMATEX_GUIDBASE; for( i = 0; !guidcmp( &sub_format_tag_to_fourcc[i].guid_tag, &unknown ); i++ ) { if( guidcmp( &sub_format_tag_to_fourcc[i].guid_tag, guid_tag ) ) { b_found = true; break; } } if( !b_found && guidcmpbase(guid_tag, &waveformatex) ) { wf_tag_to_fourcc(guid_tag->Data1, fcc, ppsz_name); } else { if( fcc ) *fcc = sub_format_tag_to_fourcc[i].i_fourcc; if( ppsz_name ) *ppsz_name = sub_format_tag_to_fourcc[i].psz_name; } } #endif /* "codecs.h" */