开通博客赚积分
发布资源赚积分
分类

源码开发语言/平台
当前位置：首页 > 源码/资料 > 多媒体 > midi > 查看源码
libasf.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：13k
源码类别：

midi

开发平台：

Unix_Linux

libasf.h：源码内容
  1. /*****************************************************************************
  2.  * libasf.h :
  3.  *****************************************************************************
  4.  * Copyright (C) 2001-2003 the VideoLAN team
  5.  * $Id: ebd16604913c109438204c9be174201a805b8fba $
  6.  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  7.  *
  8.  * This program is free software; you can redistribute it and/or modify
  9.  * it under the terms of the GNU General Public License as published by
  10.  * the Free Software Foundation; either version 2 of the License, or
  11.  * (at your option) any later version.
  12.  *
  13.  * This program is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16.  * GNU General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU General Public License
  19.  * along with this program; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21.  *****************************************************************************/
  24. /*****************************************************************************
  25.  * Structure needed for decoder
  26.  *****************************************************************************/
  27. typedef struct guid_s
  28. {
  29.     uint32_t v1; /* le */
  30.     uint16_t v2; /* le */
  31.     uint16_t v3; /* le */
  32.     uint8_t  v4[8];
  33. } guid_t;
  35. enum
  36. {
  37.     ASF_OBJECT_NULL = 0,
  38.     ASF_OBJECT_ROOT,
  39.     ASF_OBJECT_HEADER,
  40.     ASF_OBJECT_DATA,
  41.     ASF_OBJECT_INDEX,
  42.     ASF_OBJECT_FILE_PROPERTIES,
  43.     ASF_OBJECT_STREAM_PROPERTIES,
  44.     ASF_OBJECT_HEADER_EXTENSION,
  45.     ASF_OBJECT_CODEC_LIST,
  46.     ASF_OBJECT_MARKER,
  47.     ASF_OBJECT_CONTENT_DESCRIPTION,
  48.     ASF_OBJECT_METADATA,
  49.     ASF_OBJECT_PADDING,
  50.     ASF_OBJECT_OTHER,
  51. };
  53. static const guid_t asf_object_null_guid =
  54. {
  55.     0x00000000,
  56.     0x0000,
  57.     0x0000,
  58.     { 0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00 }
  59. };
  61. static const guid_t asf_object_header_guid =
  62. {0x75B22630, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
  64. static const guid_t asf_object_data_guid =
  65. {0x75B22636, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
  67. static const guid_t asf_object_index_guid =
  68. {0x33000890, 0xE5B1, 0x11CF, {0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB}};
  70. static const guid_t asf_object_file_properties_guid =
  71. {0x8cabdca1, 0xa947, 0x11cf, {0x8e, 0xe4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
  73. static const guid_t asf_object_stream_properties_guid =
  74. {0xB7DC0791, 0xA9B7, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
  76. static const guid_t asf_object_content_description_guid =
  77. {0x75B22633, 0x668E, 0x11CF, {0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}};
  79. static const guid_t asf_object_header_extension_guid =
  80. {0x5FBF03B5, 0xA92E, 0x11CF, {0x8E, 0xE3, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
  82. static const guid_t asf_object_metadata_guid =
  83. {0xC5F8CBEA, 0x5BAF, 0x4877, {0x84, 0x67, 0xAA, 0x8C, 0x44, 0xFA, 0x4C, 0xCA}};
  85. static const guid_t asf_object_codec_list_guid =
  86. {0x86D15240, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
  88. static const guid_t asf_object_marker_guid =
  89. {0xF487CD01, 0xA951, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
  91. static const guid_t asf_object_stream_type_audio =
  92. {0xF8699E40, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
  94. static const guid_t asf_object_stream_type_video =
  95. {0xbc19efc0, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
  97. static const guid_t asf_object_stream_type_command =
  98. {0x59DACFC0, 0x59E6, 0x11D0, {0xA3, 0xAC, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
  100. /* TODO */
  101. static const guid_t asf_object_stream_bitrate_properties =
  102. {0x7BF875CE, 0x468D, 0x11D1, {0x8D, 0x82, 0x00, 0x60, 0x97, 0xC9, 0xA2, 0xB2}};
  104. static const guid_t asf_object_language_list =
  105. {0x7C4346A9, 0xEFE0, 0x4BFC, {0xB2, 0x29, 0x39, 0x3E, 0xDE, 0x41, 0x5C, 0x85}};
  107. static const guid_t asf_object_extended_stream_properties =
  108. {0x14E6A5CB, 0xC672, 0x4332, {0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A}};
  110. static const guid_t asf_object_advanced_mutual_exclusion =
  111. {0xA08649CF, 0x4775, 0x4670, {0x8A, 0x16, 0x6E, 0x35, 0x35, 0x75, 0x66, 0xCD}};
  113. static const guid_t asf_object_padding =
  114. {0x1806D474, 0xCADF, 0x4509, {0xA4, 0xBA, 0x9A, 0xAB, 0xCB, 0x96, 0xAA, 0xE8}};
  116. static const guid_t asf_object_stream_prioritization =
  117. {0xD4FED15B, 0x88D3, 0x454F, {0x81, 0xF0, 0xED, 0x5C, 0x45, 0x99, 0x9E, 0x24}};
  119. static const guid_t asf_object_extended_content_description =
  120. {0xD2D0A440, 0xE307, 0x11D2, {0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50}};
  122. static const guid_t asf_object_extended_stream_header =
  123. {0x3afb65e2, 0x47ef, 0x40f2, { 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43}};
  125. static const guid_t asf_object_extended_stream_type_audio =
  126. {0x31178c9d, 0x03e1, 0x4528, { 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03}};
  128. #define ASF_OBJECT_COMMON          
  129.     int          i_type;           
  130.     guid_t       i_object_id;      
  131.     uint64_t     i_object_size;    
  132.     uint64_t     i_object_pos;     
  133.     union asf_object_u *p_father;  
  134.     union asf_object_u *p_first;   
  135.     union asf_object_u *p_last;    
  136.     union asf_object_u *p_next;
  138. typedef struct
  139. {
  140.     ASF_OBJECT_COMMON
  142. } asf_object_common_t;
  144. typedef struct
  145. {
  146.     uint32_t i_packet_number;
  147.     uint16_t i_packet_count;
  149. } asf_index_entry_t;
  151. /****************************************************************************
  152.  * High level asf object
  153.  ****************************************************************************/
  154. /* This is the first header found in an asf file
  155.  * It's the only object that has subobjects */
  156. typedef struct
  157. {
  158.     ASF_OBJECT_COMMON
  159.     uint32_t i_sub_object_count;
  160.     uint8_t  i_reserved1; /* 0x01, but could be safely ignored */
  161.     uint8_t  i_reserved2; /* 0x02, if not must failed to source the contain */
  163. } asf_object_header_t;
  165. typedef struct
  166. {
  167.     ASF_OBJECT_COMMON
  168.     guid_t      i_file_id;
  169.     uint64_t    i_total_data_packets;
  170.     uint16_t    i_reserved;
  172. } asf_object_data_t;
  175. typedef struct
  176. {
  177.     ASF_OBJECT_COMMON
  178.     guid_t      i_file_id;
  179.     uint64_t    i_index_entry_time_interval;
  180.     uint32_t    i_max_packet_count;
  181.     uint32_t    i_index_entry_count;
  183.     asf_index_entry_t *index_entry;
  185. } asf_object_index_t;
  187. /****************************************************************************
  188.  * Sub level asf object
  189.  ****************************************************************************/
  190. #define ASF_FILE_PROPERTIES_BROADCAST   0x01
  191. #define ASF_FILE_PROPERTIES_SEEKABLE    0x02
  193. typedef struct
  194. {
  195.     ASF_OBJECT_COMMON
  197.     guid_t  i_file_id;
  198.     uint64_t     i_file_size;
  199.     uint64_t     i_creation_date;
  200.     uint64_t     i_data_packets_count;
  201.     uint64_t     i_play_duration;
  202.     uint64_t     i_send_duration;
  203.     uint64_t     i_preroll;
  204.     uint32_t     i_flags;
  205.     uint32_t     i_min_data_packet_size;
  206.     uint32_t     i_max_data_packet_size;
  207.     uint32_t     i_max_bitrate;
  209. } asf_object_file_properties_t;
  211. #define ASF_STREAM_PROPERTIES_ENCRYPTED 0x8000
  212. typedef struct
  213. {
  214.     ASF_OBJECT_COMMON
  216.     guid_t  i_stream_type;
  217.     guid_t  i_error_correction_type;
  218.     uint64_t     i_time_offset;
  219.     uint32_t     i_type_specific_data_length;
  220.     uint32_t     i_error_correction_data_length;
  221.     uint16_t     i_flags;
  222.         /* extrated from flags */
  223.         uint8_t i_stream_number;
  224.     uint32_t    i_reserved;
  225.     uint8_t     *p_type_specific_data;
  226.     uint8_t     *p_error_correction_data;
  227. } asf_object_stream_properties_t;
  229. typedef struct
  230. {
  231.     ASF_OBJECT_COMMON
  233.     guid_t      i_reserved1;
  234.     uint16_t    i_reserved2;
  235.     uint32_t    i_header_extension_size;
  236.     uint8_t     *p_header_extension_data;
  238. } asf_object_header_extension_t;
  240. #define ASF_METADATA_TYPE_STRING 0x0000
  241. #define ASF_METADATA_TYPE_BYTE   0x0001
  242. #define ASF_METADATA_TYPE_BOOL   0x0002
  243. #define ASF_METADATA_TYPE_DWORD  0x0003
  244. #define ASF_METADATA_TYPE_QWORD  0x0004
  245. #define ASF_METADATA_TYPE_WORD   0x0005
  247. typedef struct
  248. {
  249.     uint16_t    i_stream;
  250.     uint16_t    i_type;
  251.     char        *psz_name;
  253.     int64_t i_val;
  254.     int i_data;
  255.     uint8_t *p_data;
  257. } asf_metadata_record_t;
  259. typedef struct
  260. {
  261.     ASF_OBJECT_COMMON
  263.     uint32_t i_record_entries_count;
  264.     asf_metadata_record_t *record;
  266. } asf_object_metadata_t;
  268. typedef struct
  269. {
  270.     ASF_OBJECT_COMMON
  272.     char *psz_title;
  273.     char *psz_artist;
  274.     char *psz_copyright;
  275.     char *psz_description;
  276.     char *psz_rating;
  278. } asf_object_content_description_t;
  280. typedef struct
  281. {
  282.     uint16_t i_length;
  283.     uint16_t *i_char;
  285. } string16_t;
  287. #define ASF_CODEC_TYPE_VIDEO    0x0001
  288. #define ASF_CODEC_TYPE_AUDIO    0x0002
  289. #define ASF_CODEC_TYPE_UNKNOW   0xffff
  291. typedef struct
  292. {
  293.     uint16_t    i_type;
  294.     char        *psz_name;
  295.     char        *psz_description;
  297.     uint16_t    i_information_length;
  298.     uint8_t     *p_information;
  299. } asf_codec_entry_t;
  301. typedef struct
  302. {
  303.     ASF_OBJECT_COMMON
  304.     guid_t      i_reserved;
  305.     uint32_t    i_codec_entries_count;
  306.     asf_codec_entry_t *codec;
  308. } asf_object_codec_list_t;
  310. typedef struct
  311. {
  312.     uint64_t     i_offset;
  313.     uint64_t     i_presentation_time;
  314.     uint16_t     i_entry_length;
  315.     uint32_t     i_send_time;
  316.     uint32_t     i_flags;
  317.     uint32_t     i_marker_description_length;
  318.     uint8_t      *i_marker_description;
  320. } asf_marker_t;
  322. typedef struct
  323. {
  324.     ASF_OBJECT_COMMON
  325.     guid_t      i_reserved1;
  326.     uint32_t    i_count;
  327.     uint16_t    i_reserved2;
  328.     string16_t name;
  329.     asf_marker_t *marker;
  331. } asf_object_marker_t;
  333. typedef struct
  334. {
  335.     ASF_OBJECT_COMMON
  336.     int  i_language;
  337.     char **ppsz_language;
  339. } asf_object_language_list_t;
  341. typedef struct
  342. {
  343.     ASF_OBJECT_COMMON
  345.     int i_bitrate;
  346.     struct
  347.     {
  348.         int      i_stream_number;
  349.         uint32_t i_avg_bitrate;
  350.     } bitrate[128];
  351. } asf_object_stream_bitrate_properties_t;
  353. typedef struct
  354. {
  355.     ASF_OBJECT_COMMON
  357.     int64_t i_start_time;
  358.     int64_t i_end_time;
  359.     int32_t i_data_bitrate;
  360.     int32_t i_buffer_size;
  361.     int32_t i_initial_buffer_fullness;
  362.     int32_t i_alternate_data_bitrate;
  363.     int32_t i_alternate_buffer_size;
  364.     int32_t i_alternate_initial_buffer_fullness;
  365.     int32_t i_maximum_object_size;
  367.     int32_t i_flags;
  368.     int16_t i_stream_number;
  369.     int16_t i_language_index;
  370.     int64_t i_average_time_per_frame;
  372.     int     i_stream_name_count;
  373.     int     i_payload_extension_system_count;
  375.     int     *pi_stream_name_language;
  376.     char    **ppsz_stream_name;
  378.     asf_object_stream_properties_t *p_sp;
  379. } asf_object_extended_stream_properties_t;
  381. typedef struct
  382. {
  383.     ASF_OBJECT_COMMON
  385.     guid_t  type;
  386.     int16_t i_stream_number_count;
  387.     int16_t *pi_stream_number;
  389. } asf_object_advanced_mutual_exclusion_t;
  391. typedef struct
  392. {
  393.     ASF_OBJECT_COMMON
  395.     int i_priority_count;
  396.     int *pi_priority_flag;
  397.     int *pi_priority_stream_number;
  398. } asf_object_stream_prioritization_t;
  400. typedef struct
  401. {
  402.     ASF_OBJECT_COMMON
  404.     int i_count;
  405.     char **ppsz_name;
  406.     char **ppsz_value;
  407. } asf_object_extended_content_description_t;
  409. /****************************************************************************
  410.  * Special Root Object
  411.  ****************************************************************************/
  412. typedef struct
  413. {
  414.     ASF_OBJECT_COMMON
  416.     asf_object_header_t *p_hdr;
  417.     asf_object_data_t   *p_data;
  418.     /* could be NULL if !b_seekable or not-present */
  419.     asf_object_index_t  *p_index;
  421.     /* from asf_object_header_t */
  422.     asf_object_file_properties_t *p_fp;
  424.     /* from asf_object_header_extension_t */
  425.     asf_object_metadata_t *p_metadata;
  427. } asf_object_root_t;
  429. /****************************************************************************
  430.  * asf_object_t: union of all objects.
  431.  ****************************************************************************/
  432. typedef union asf_object_u
  433. {
  434.     asf_object_common_t common;
  435.     asf_object_header_t header;
  436.     asf_object_data_t   data;
  437.     asf_object_index_t  index;
  438.     asf_object_root_t   root;
  439.     asf_object_file_properties_t    file_properties;
  440.     asf_object_stream_properties_t  stream_properties;
  441.     asf_object_header_extension_t   header_extension;
  442.     asf_object_metadata_t           metadata;
  443.     asf_object_codec_list_t         codec_list;
  444.     asf_object_marker_t             marker;
  445.     asf_object_language_list_t      language_list;
  446.     asf_object_stream_bitrate_properties_t stream_bitrate;
  447.     asf_object_extended_stream_properties_t ext_stream;
  448.     asf_object_content_description_t content_description;
  449.     asf_object_advanced_mutual_exclusion_t advanced_mutual_exclusion;
  450.     asf_object_stream_prioritization_t stream_prioritization;
  451.     asf_object_extended_content_description_t extended_content_description;
  453. } asf_object_t;
  456. void ASF_GetGUID( guid_t *p_guid, const uint8_t *p_data );
  457. bool ASF_CmpGUID( const guid_t *p_guid1, const guid_t *p_guid2 );
  459. asf_object_root_t *ASF_ReadObjectRoot( stream_t *, int b_seekable );
  460. void               ASF_FreeObjectRoot( stream_t *, asf_object_root_t *p_root );
  462. #define ASF_CountObject( a, b ) __ASF_CountObject( (asf_object_t*)(a), b )
  463. int  __ASF_CountObject ( asf_object_t *p_obj, const guid_t *p_guid );
  465. #define ASF_FindObject( a, b, c )  __ASF_FindObject( (asf_object_t*)(a), b, c )
  466. void *__ASF_FindObject( asf_object_t *p_obj, const guid_t *p_guid, int i_number );