vlc_codecs.h
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:15k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * codecs.h: codec related structures needed by the demuxers and decoders
- *****************************************************************************
- * Copyright (C) 1999-2001 the VideoLAN team
- * $Id: 2a668cd7d4147bf38fc8341518665834e98f50ab $
- *
- * Author: Gildas Bazin <gbazin@videolan.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 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 General Public License for more details.
- *
- * You should have received a copy of the GNU 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
- /**
- * file
- * This file defines codec related structures needed by the demuxers and decoders
- */
- #ifdef HAVE_ATTRIBUTE_PACKED
- # define ATTR_PACKED __attribute__((__packed__))
- #else
- # error FIXME
- #endif
- /* 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 */
- #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;
- uint16_t wSamplesPerBlock;
- uint16_t wReserved;
- } Samples;
- uint32_t dwChannelMask;
- GUID SubFormat;
- } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE;
- #endif /* _WAVEFORMATEXTENSIBLE_ */
- #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_ */
- #if !defined(_BITMAPINFOHEADER_) && !defined(WIN32)
- #define _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;
- } BITMAPINFOHEADER, *PBITMAPINFOHEADER, *LPBITMAPINFOHEADER;
- typedef struct
- ATTR_PACKED
- {
- BITMAPINFOHEADER bmiHeader;
- int bmiColors[1];
- } BITMAPINFO, *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;
- BITMAPINFOHEADER bmiHeader;
- } VIDEOINFOHEADER;
- #endif
- #ifndef _RGBQUAD_
- #define _RGBQUAD_
- typedef struct
- ATTR_PACKED
- {
- uint8_t rgbBlue;
- uint8_t rgbGreen;
- uint8_t rgbRed;
- uint8_t rgbReserved;
- } RGBQUAD1;
- #endif
- #ifndef _TRUECOLORINFO_
- #define _TRUECOLORINFO_
- typedef struct
- ATTR_PACKED
- {
- uint32_t dwBitMasks[3];
- RGBQUAD1 bmiColors[256];
- } TRUECOLORINFO;
- #endif
- #ifndef _VIDEOINFO_
- #define _VIDEOINFO_
- typedef struct
- ATTR_PACKED
- {
- RECT32 rcSource;
- RECT32 rcTarget;
- uint32_t dwBitRate;
- uint32_t dwBitErrorRate;
- REFERENCE_TIME AvgTimePerFrame;
- BITMAPINFOHEADER bmiHeader;
- union
- {
- RGBQUAD1 bmiColors[256]; /* Colour palette */
- uint32_t dwBitMasks[3]; /* True colour masks */
- TRUECOLORINFO TrueColorInfo; /* Both of the above */
- };
- } VIDEOINFO;
- #endif
- /* WAVE format wFormatTag IDs */
- #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_TRUESPEECH 0x0022 /* TrueSpeech */
- #define WAVE_FORMAT_GSM610 0x0031 /* Microsoft Corporation */
- #define WAVE_FORMAT_MSNAUDIO 0x0032 /* Microsoft Corporation */
- #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_DOLBY_AC3_SPDIF 0x0092 /* Sonic Foundry */
- #define WAVE_FORMAT_A52 0x2000
- #define WAVE_FORMAT_DTS 0x2001
- #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_DIVIO_AAC 0x4143
- #define WAVE_FORMAT_AAC 0x00FF
- #define WAVE_FORMAT_FFMPEG_AAC 0x706D
- /* Need to check these */
- #define WAVE_FORMAT_DK3 0x0061
- #define WAVE_FORMAT_DK4 0x0062
- /* At least FFmpeg 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_SPEEX 0xa109 /* Speex audio */
- #if !defined(WAVE_FORMAT_EXTENSIBLE)
- #define WAVE_FORMAT_EXTENSIBLE 0xFFFE /* Microsoft */
- #endif
- /* GUID SubFormat IDs */
- /* We need both b/c const variables are not compile-time constants in C, giving
- * us an error if we use the const GUID in an enum */
- #ifndef _KSDATAFORMAT_SUBTYPE_PCM_
- #define _KSDATAFORMAT_SUBTYPE_PCM_ {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}
- static const GUID VLC_KSDATAFORMAT_SUBTYPE_PCM = {0xE923AABF, 0xCB58, 0x4471, {0xA1, 0x19, 0xFF, 0xFA, 0x01, 0xE4, 0xCE, 0x62}};
- #define KSDATAFORMAT_SUBTYPE_PCM VLC_KSDATAFORMAT_SUBTYPE_PCM
- #endif
- #ifndef _KSDATAFORMAT_SUBTYPE_UNKNOWN_
- #define _KSDATAFORMAT_SUBTYPE_UNKNOWN_ {0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}}
- static const GUID VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN = {0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}};
- #define KSDATAFORMAT_SUBTYPE_UNKNOWN VLC_KSDATAFORMAT_SUBTYPE_UNKNOWN
- #endif
- /* 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_ADPCM, VLC_FOURCC( 'm', 's', 0x00,0x02), "ADPCM" },
- { WAVE_FORMAT_IEEE_FLOAT, VLC_FOURCC( 'a', 'f', 'l', 't' ), "IEEE Float audio" },
- { WAVE_FORMAT_ALAW, VLC_FOURCC( 'a', 'l', 'a', 'w' ), "A-Law" },
- { WAVE_FORMAT_MULAW, VLC_FOURCC( 'm', 'l', 'a', 'w' ), "Mu-Law" },
- { WAVE_FORMAT_IMA_ADPCM, VLC_FOURCC( 'm', 's', 0x00,0x11), "Ima-ADPCM" },
- { WAVE_FORMAT_TRUESPEECH, VLC_FOURCC(0x22, 0x0, 0x0, 0x0 ), "Truespeech" },
- { WAVE_FORMAT_GSM610, VLC_FOURCC( 'a', 'g', 's', 'm' ), "Microsoft WAV GSM" },
- { WAVE_FORMAT_G726, VLC_FOURCC( 'g', '7', '2', '6' ), "G.726 ADPCM" },
- { WAVE_FORMAT_MPEGLAYER3, VLC_FOURCC( 'm', 'p', 'g', 'a' ), "Mpeg Audio" },
- { WAVE_FORMAT_MPEG, VLC_FOURCC( 'm', 'p', 'g', 'a' ), "Mpeg Audio" },
- { WAVE_FORMAT_A52, VLC_FOURCC( 'a', '5', '2', ' ' ), "A/52" },
- { WAVE_FORMAT_WMA1, VLC_FOURCC( 'w', 'm', 'a', '1' ), "Window Media Audio v1" },
- { WAVE_FORMAT_WMA2, VLC_FOURCC( 'w', 'm', 'a', '2' ), "Window Media Audio v2" },
- { WAVE_FORMAT_WMA2, VLC_FOURCC( 'w', 'm', 'a', ' ' ), "Window Media Audio v2" },
- { WAVE_FORMAT_WMAP, VLC_FOURCC( 'w', 'm', 'a', 'p' ), "Window Media Audio 9 Professional" },
- { WAVE_FORMAT_WMAL, VLC_FOURCC( 'w', 'm', 'a', 'l' ), "Window Media Audio 9 Lossless" },
- { WAVE_FORMAT_WMAS, VLC_FOURCC( 'w', 'm', 'a', 's' ), "Window Media Audio 9 Speech" },
- { WAVE_FORMAT_DK3, VLC_FOURCC( 'm', 's', 0x00,0x61), "Duck DK3" },
- { WAVE_FORMAT_DK4, VLC_FOURCC( 'm', 's', 0x00,0x62), "Duck DK4" },
- { WAVE_FORMAT_DTS, VLC_FOURCC( 'd', 't', 's', ' ' ), "DTS Coherent Acoustics" },
- { WAVE_FORMAT_DTS_MS, VLC_FOURCC( 'd', 't', 's', ' ' ), "DTS Coherent Acoustics" },
- { WAVE_FORMAT_DIVIO_AAC, VLC_FOURCC( 'm', 'p', '4', 'a' ), "MPEG-4 Audio (Divio)" },
- { WAVE_FORMAT_AAC, VLC_FOURCC( 'm', 'p', '4', 'a' ), "MPEG-4 Audio" },
- { WAVE_FORMAT_FFMPEG_AAC, VLC_FOURCC( 'm', 'p', '4', 'a' ), "MPEG-4 Audio" },
- { WAVE_FORMAT_VORBIS, VLC_FOURCC( 'v', 'o', 'r', 'b' ), "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_FOURCC( 's', 'p', 'x', ' ' ), "Speex Audio" },
- { WAVE_FORMAT_UNKNOWN, VLC_FOURCC( 'u', 'n', 'd', 'f' ), "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
- {
- GUID guid_tag;
- vlc_fourcc_t i_fourcc;
- const char *psz_name;
- }
- sub_format_tag_to_fourcc[] =
- {
- { _KSDATAFORMAT_SUBTYPE_PCM_, VLC_FOURCC( 'p', 'c', 'm', ' ' ), "PCM" },
- { _KSDATAFORMAT_SUBTYPE_UNKNOWN_, VLC_FOURCC( 'u', 'n', 'd', 'f' ), "Unknown" }
- };
- /* compares two GUIDs, returns 1 if identical, 0 otherwise */
- static inline int guidcmp( const GUID *s1, const GUID *s2 )
- {
- return( s1->Data1 == s2->Data1 && s1->Data2 == s2->Data2 &&
- s1->Data3 == s2->Data3 && !memcmp( s1->Data4, s2->Data4, 8 ) );
- }
- static inline void sf_tag_to_fourcc( GUID *guid_tag,
- vlc_fourcc_t *fcc, const char **ppsz_name )
- {
- int i;
- for( i = 0; !guidcmp( &sub_format_tag_to_fourcc[i].guid_tag,
- &KSDATAFORMAT_SUBTYPE_UNKNOWN ); i++ )
- {
- if( guidcmp( &sub_format_tag_to_fourcc[i].guid_tag, guid_tag ) ) break;
- }
- if( fcc ) *fcc = sub_format_tag_to_fourcc[i].i_fourcc;
- if( ppsz_name ) *ppsz_name = sub_format_tag_to_fourcc[i].psz_name;
- }
- /**
- * Structure to hold information concerning subtitles.
- * Used between demuxers and decoders of subtitles.
- */
- typedef struct es_sys_t
- {
- char *psz_header; /* for 'ssa ' and 'subt' */
- /* for spudec */
- unsigned int i_orig_height;
- unsigned int i_orig_width;
- unsigned int i_origin_x;
- unsigned int i_origin_y;
- unsigned int i_scale_h;
- unsigned int i_scale_v;
- unsigned int i_alpha;
- bool b_smooth;
- mtime_t i_fade_in;
- mtime_t i_fade_out;
- unsigned int i_align;
- mtime_t i_time_offset;
- bool b_forced_subs;
- unsigned int palette[16];
- unsigned int colors[4];
- } subtitle_data_t;
- #endif /* "codecs.h" */