X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Fvlc_access.h;h=d12953a41c525ff4f1844f65f63f9b490f211e4c;hb=0d1f966a0b3581d3e96423ce34f32b4da7725c31;hp=ce225d03ea5de7d8f0502b093d9d033fdc1c1322;hpb=743711c4d349415b850db1d684299846508ec0e1;p=vlc diff --git a/include/vlc_access.h b/include/vlc_access.h index ce225d03ea..d12953a41c 100644 --- a/include/vlc_access.h +++ b/include/vlc_access.h @@ -1,7 +1,7 @@ /***************************************************************************** - * vlc_access.h + * vlc_access.h: Access descriptor, queries and methods ***************************************************************************** - * Copyright (C) 1999-2004 VideoLAN + * Copyright (C) 1999-2006 the VideoLAN team * $Id$ * * Authors: Laurent Aimar @@ -18,11 +18,18 @@ * * 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. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ -#ifndef _VLC_ACCESS_H -#define _VLC_ACCESS_H 1 +#ifndef VLC_ACCESS_H +#define VLC_ACCESS_H 1 + +/** + * \file + * This file defines functions and definitions for access object + */ + +#include /** * \defgroup access Access @@ -32,21 +39,26 @@ enum access_query_e { /* capabilities */ - ACCESS_CAN_SEEK, /* arg1= vlc_bool_t* cannot fail */ - ACCESS_CAN_FASTSEEK, /* arg1= vlc_bool_t* cannot fail */ - ACCESS_CAN_PAUSE, /* arg1= vlc_bool_t* cannot fail */ - ACCESS_CAN_CONTROL_PACE,/* arg1= vlc_bool_t* cannot fail */ + ACCESS_CAN_SEEK, /* arg1= bool* cannot fail */ + ACCESS_CAN_FASTSEEK, /* arg1= bool* cannot fail */ + ACCESS_CAN_PAUSE, /* arg1= bool* cannot fail */ + ACCESS_CAN_CONTROL_PACE,/* arg1= bool* cannot fail */ /* */ - ACCESS_GET_MTU, /* arg1= int* cannot fail(0 if no sense)*/ - ACCESS_GET_PTS_DELAY, /* arg1= int64_t* cannot fail */ + ACCESS_GET_PTS_DELAY = 0x101,/* arg1= int64_t* cannot fail */ /* */ - ACCESS_GET_TITLE_INFO, /* arg1=input_title_t*** arg2=int* can fail */ + ACCESS_GET_TITLE_INFO, /* arg1=input_title_t*** arg2=int* res=can fail */ /* Meta data */ - ACCESS_GET_META, /* arg1= vlc_meta_t ** res=can fail */ + ACCESS_GET_META, /* arg1= vlc_meta_t ** res=can fail */ /* */ - ACCESS_SET_PAUSE_STATE, /* arg1= vlc_bool_t can fail */ + ACCESS_GET_CONTENT_TYPE,/* arg1=char **ppsz_content_type res=can fail */ + + /* */ + ACCESS_GET_SIGNAL, /* arg1=double *pf_quality, arg2=double *pf_strength res=can fail */ + + /* */ + ACCESS_SET_PAUSE_STATE = 0x200, /* arg1= bool can fail */ /* */ ACCESS_SET_TITLE, /* arg1= int can fail */ @@ -54,7 +66,9 @@ enum access_query_e /* Special mode for access/demux communication * XXX: avoid to use it unless you can't */ - ACCESS_SET_PRIVATE_ID_STATE, /* arg1= int i_private_data, vlc_bool_t b_selected can fail */ + ACCESS_SET_PRIVATE_ID_STATE = 0x1000, /* arg1= int i_private_data, bool b_selected res=can fail */ + ACCESS_SET_PRIVATE_ID_CA, /* arg1= int i_program_number, uint16_t i_vpid, uint16_t i_apid1, uint16_t i_apid2, uint16_t i_apid3, uint8_t i_length, uint8_t *p_data */ + ACCESS_GET_PRIVATE_ID_STATE, /* arg1=int i_private_data arg2=bool * res=can fail */ }; struct access_t @@ -70,13 +84,13 @@ struct access_t char *psz_path; /* Access can fill this entry to force a demuxer - * XXX: fill it once you know for sure you will succed + * XXX: fill it once you know for sure you will succeed * (if you fail, this value won't be reseted */ char *psz_demux; /* pf_read/pf_block is used to read data. * XXX A access should set one and only one of them */ - int (*pf_read) ( access_t *, uint8_t *, int ); /* Return -1 if no data yet, 0 if no more data, else real data read */ + ssize_t (*pf_read) ( access_t *, uint8_t *, size_t ); /* Return -1 if no data yet, 0 if no more data, else real data read */ block_t *(*pf_block)( access_t * ); /* return a block of data in his 'natural' size, NULL if not yet data or eof */ /* Called for each seek. @@ -95,31 +109,66 @@ struct access_t int64_t i_size; /* Write only for access, read only for input */ int64_t i_pos; /* idem */ - vlc_bool_t b_eof; /* idem */ + bool b_eof; /* idem */ int i_title; /* idem, start from 0 (could be menu) */ int i_seekpoint;/* idem, start from 0 */ } info; access_sys_t *p_sys; -}; -#define access2_New( a, b, c, d ) __access2_New(VLC_OBJECT(a), b, c, d ) -VLC_EXPORT( access_t *, __access2_New, ( vlc_object_t *p_obj, char *psz_access, char *psz_demux, char *psz_path ) ); -VLC_EXPORT( void, access2_Delete, ( access_t * ) ); + /* Weak link to parent input */ + input_thread_t *p_input; +}; -static inline int access2_vaControl( access_t *p_access, int i_query, va_list args ) +static inline int access_vaControl( access_t *p_access, int i_query, va_list args ) { + if( !p_access ) return VLC_EGENERIC; return p_access->pf_control( p_access, i_query, args ); } -static inline int access2_Control( access_t *p_access, int i_query, ... ) + +static inline int access_Control( access_t *p_access, int i_query, ... ) { va_list args; int i_result; va_start( args, i_query ); - i_result = access2_vaControl( p_access, i_query, args ); + i_result = access_vaControl( p_access, i_query, args ); va_end( args ); return i_result; } +static inline void access_InitFields( access_t *p_a ) +{ + p_a->info.i_update = 0; + p_a->info.i_size = 0; + p_a->info.i_pos = 0; + p_a->info.b_eof = false; + p_a->info.i_title = 0; + p_a->info.i_seekpoint = 0; +} + +/** + * This function will return the parent input of this access. + * It is retained. It can return NULL. + */ +VLC_EXPORT( input_thread_t *, access_GetParentInput, ( access_t *p_access ) ); + +#define ACCESS_SET_CALLBACKS( read, block, control, seek ) \ + p_access->pf_read = read; \ + p_access->pf_block = block; \ + p_access->pf_control = control; \ + p_access->pf_seek = seek; + +#define STANDARD_READ_ACCESS_INIT \ + access_InitFields( p_access ); \ + ACCESS_SET_CALLBACKS( Read, NULL, Control, Seek ); \ + p_sys = p_access->p_sys = calloc( 1, sizeof( access_sys_t )); \ + if( !p_sys ) return VLC_ENOMEM; + +#define STANDARD_BLOCK_ACCESS_INIT \ + access_InitFields( p_access ); \ + ACCESS_SET_CALLBACKS( NULL, Block, Control, Seek ); \ + p_sys = p_access->p_sys = calloc( 1, sizeof( access_sys_t ) ); \ + if( !p_sys ) return VLC_ENOMEM; + #endif