codecs.h
上传用户:riyaled888
上传日期:2009-03-27
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文件大小:10k
- /*****************************************************************************
- * codecs.h: codec related structures needed by the demuxers and decoders
- *****************************************************************************
- * Copyright (C) 1999-2001 VideoLAN
- * $Id: codecs.h 8401 2004-08-08 01:36:56Z fenrir $
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #ifndef _VLC_CODECS_H
- #define _VLC_CODECS_H 1
- /* 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
- #ifdef HAVE_ATTRIBUTE_PACKED
- __attribute__((__packed__))
- #endif
- _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
- #ifdef HAVE_ATTRIBUTE_PACKED
- __attribute__((__packed__))
- #endif
- _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
- #ifdef HAVE_ATTRIBUTE_PACKED
- __attribute__((__packed__))
- #endif
- _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
- #ifdef HAVE_ATTRIBUTE_PACKED
- __attribute__((__packed__))
- #endif
- {
- 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 {
- BITMAPINFOHEADER bmiHeader;
- int bmiColors[1];
- } BITMAPINFO, *LPBITMAPINFO;
- #endif
- #ifndef _RECT32_
- #define _RECT32_
- typedef struct
- #ifdef HAVE_ATTRIBUTE_PACKED
- __attribute__((__packed__))
- #endif
- {
- 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
- #ifdef HAVE_ATTRIBUTE_PACKED
- __attribute__((__packed__))
- #endif
- {
- RECT32 rcSource;
- RECT32 rcTarget;
- uint32_t dwBitRate;
- uint32_t dwBitErrorRate;
- REFERENCE_TIME AvgTimePerFrame;
- BITMAPINFOHEADER bmiHeader;
- //int reserved[3];
- } VIDEOINFOHEADER;
- #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_IMA_ADPCM 0x0011 /* Intel Corporation */
- #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
- #define WAVE_FORMAT_WMA2 0x0161
- #define WAVE_FORMAT_WMA3 0x0162
- #define WAVE_FORMAT_DIVIO_AAC 0x4143
- /* Need to check these */
- #define WAVE_FORMAT_DK3 0x0061
- #define WAVE_FORMAT_DK4 0x0062
- #if !defined(WAVE_FORMAT_EXTENSIBLE)
- #define WAVE_FORMAT_EXTENSIBLE 0xFFFE /* Microsoft */
- #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 struct
- {
- uint16_t i_tag;
- vlc_fourcc_t i_fourcc;
- 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_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 1" },
- { WAVE_FORMAT_WMA2, VLC_FOURCC( 'w', 'm', 'a', '2' ), "Window Media Audio 2" },
- { WAVE_FORMAT_WMA3, VLC_FOURCC( 'w', 'm', 'a', '3' ), "Window Media Audio 3" },
- { 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_UNKNOWN, VLC_FOURCC( 'u', 'n', 'd', 'f' ), "Unknown" }
- };
- static inline void wf_tag_to_fourcc( uint16_t i_tag, vlc_fourcc_t *fcc,
- 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;
- }
- /**
- * 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;
- vlc_bool_t b_smooth;
- mtime_t i_fade_in;
- mtime_t i_fade_out;
- unsigned int i_align;
- mtime_t i_time_offset;
- vlc_bool_t b_forced_subs;
- unsigned int palette[16];
- unsigned int colors[4];
- } subtitle_data_t;
- #endif /* "codecs.h" */