1 /*****************************************************************************
2 * demux.c: demux functions for dvdplay.
3 *****************************************************************************
4 * Copyright (C) 1998-2001 VideoLAN
5 * $Id: demux.c,v 1.1 2002/07/23 19:56:19 stef Exp $
7 * Author: Stéphane Borel <stef@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc/input.h>
39 #include <sys/types.h>
44 #ifdef STRNCASECMP_IN_STRINGS_H
48 #include "interface.h"
53 /* how many packets dvdplay_Demux will read in each loop */
54 #define dvdplay_READ_ONCE 64
56 /*****************************************************************************
58 *****************************************************************************/
60 /* called from outside */
61 static int dvdplay_Rewind ( struct input_thread_t * );
62 static int dvdplay_Demux ( struct input_thread_t * );
63 static int dvdplay_Init ( struct input_thread_t * );
64 static void dvdplay_End ( struct input_thread_t * );
66 /*****************************************************************************
67 * Functions exported as capabilities. They are declared as static so that
68 * we don't pollute the namespace too much.
69 *****************************************************************************/
70 void _M( demux_getfunctions)( function_list_t * p_function_list )
72 #define demux p_function_list->functions.demux
73 demux.pf_init = dvdplay_Init;
74 demux.pf_end = dvdplay_End;
75 demux.pf_demux = dvdplay_Demux;
76 demux.pf_rewind = dvdplay_Rewind;
81 * Data demux functions
84 /*****************************************************************************
85 * dvdplay_Init: initializes dvdplay structures
86 *****************************************************************************/
87 static int dvdplay_Init( input_thread_t * p_input )
90 char * psz_intf = NULL;
92 if( p_input->stream.i_method != INPUT_METHOD_DVD )
97 p_input->p_demux_data = (void*)p_input->p_access_data;
98 p_dvd = (dvd_data_t *)p_input->p_demux_data;
100 psz_intf = config_GetPsz( p_input, "intf" );
101 config_PutPsz( p_input, "intf", "dvdplay" );
102 p_dvd->p_intf = intf_Create( p_input );
103 p_dvd->p_intf->b_block = VLC_FALSE;
104 intf_RunThread( p_dvd->p_intf );
106 if( psz_intf != NULL )
108 config_PutPsz( p_input, "intf", psz_intf );
114 /*****************************************************************************
115 * dvdplay_End: frees unused data
116 *****************************************************************************/
117 static void dvdplay_End( input_thread_t * p_input )
120 intf_thread_t * p_intf = NULL;
122 p_intf = vlc_object_find( p_input, VLC_OBJECT_INTF, FIND_CHILD );
125 intf_StopThread( p_intf );
126 vlc_object_detach_all( p_intf );
127 vlc_object_release( p_intf );
128 intf_Destroy( p_intf );
131 p_dvd = (dvd_data_t *)p_input->p_demux_data;
132 p_dvd->p_intf = NULL;
135 /*****************************************************************************
137 *****************************************************************************/
138 static int dvdplay_Demux( input_thread_t * p_input )
141 data_packet_t * p_data;
146 p_dvd = (dvd_data_t *)p_input->p_demux_data;
148 /* Read headers to compute payload length */
151 if( ( i_result = input_ReadPS( p_input, &p_data ) ) <= 0)
156 i_remains = p_input->p_last_data - p_input->p_current_data;
158 input_DemuxPS( p_input, p_data );
167 // if( p_dvd->b_still && p_dvd->b_end_of_cell && p_dvd->p_intf != NULL )
168 if( p_dvd->i_still_time && p_dvd->b_end_of_cell && p_dvd->p_intf != NULL )
170 pgrm_descriptor_t * p_pgrm;
172 /* when we receive still_time flag, we have to pause immediately */
173 input_SetStatus( p_input, INPUT_STATUS_PAUSE );
175 dvdIntfStillTime( p_dvd->p_intf, p_dvd->i_still_time );
176 p_dvd->i_still_time = 0;
178 vlc_mutex_lock( &p_input->stream.stream_lock );
180 p_pgrm = p_input->stream.p_selected_program;
181 p_pgrm->i_synchro_state = SYNCHRO_REINIT;
183 vlc_mutex_unlock( &p_input->stream.stream_lock );
185 input_ClockManageControl( p_input, p_pgrm, 0 );
191 /*****************************************************************************
192 * dvdplay_Rewind : reads a stream backward
193 *****************************************************************************/
194 static int dvdplay_Rewind( input_thread_t * p_input )