git.sesse.net Git - vlc/blob - src/input/input_ext-intf.c

   1 /*****************************************************************************
   2  * input_ext-intf.c: services to the interface
   3  *****************************************************************************
   4  * Copyright (C) 1998, 1999, 2000 VideoLAN
   5  * $Id: input_ext-intf.c,v 1.17 2001/03/21 13:42:34 sam Exp $
   6  *
   7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
   8  *
   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.
  13  *
  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.
  18  *
  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  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include "defs.h"
  28
  29 #include "config.h"
  30 #include "common.h"
  31 #include "threads.h"
  32 #include "mtime.h"
  33
  34 #include "intf_msg.h"
  35
  36 #include "stream_control.h"
  37 #include "input_ext-dec.h"
  38 #include "input_ext-intf.h"
  39
  40 #include "input.h"
  41
  42 /*****************************************************************************
  43  * input_SetStatus: change the reading status
  44  *****************************************************************************/
  45 void input_SetStatus( input_thread_t * p_input, int i_mode )
  46 {
  47     vlc_mutex_lock( &p_input->stream.stream_lock );
  48
  49     switch( i_mode )
  50     {
  51     case INPUT_STATUS_END:
  52         p_input->stream.i_new_status = PLAYING_S;
  53         p_input->b_eof = 1;
  54         intf_Msg( "input: end of stream" );
  55         break;
  56
  57     case INPUT_STATUS_PLAY:
  58         p_input->stream.i_new_status = PLAYING_S;
  59         intf_Msg( "input: playing at normal rate" );
  60         break;
  61
  62     case INPUT_STATUS_PAUSE:
  63         /* XXX: we don't need to check i_status, because input_clock.c
  64          * does it for us */
  65         p_input->stream.i_new_status = PAUSE_S;
  66         intf_Msg( "input: toggling pause" );
  67         break;
  68
  69     case INPUT_STATUS_FASTER:
  70         /* If we are already going too fast, go back to default rate */
  71         if( p_input->stream.control.i_rate * 8 <= DEFAULT_RATE )
  72         {
  73             p_input->stream.i_new_status = PLAYING_S;
  74             intf_Msg( "input: playing at normal rate" );
  75         }
  76         else
  77         {
  78             p_input->stream.i_new_status = FORWARD_S;
  79
  80             if( p_input->stream.control.i_rate < DEFAULT_RATE
  81                     && p_input->stream.control.i_status == FORWARD_S )
  82             {
  83                 p_input->stream.i_new_rate =
  84                                     p_input->stream.control.i_rate / 2;
  85             }
  86             else
  87             {
  88                 p_input->stream.i_new_rate = DEFAULT_RATE / 2;
  89             }
  90             intf_Msg( "input: playing at %i:1 fast forward",
  91                       DEFAULT_RATE / p_input->stream.i_new_rate );
  92         }
  93         break;
  94
  95     case INPUT_STATUS_SLOWER:
  96         /* If we are already going too slow, go back to default rate */
  97         if( p_input->stream.control.i_rate >= 8 * DEFAULT_RATE )
  98         {
  99             p_input->stream.i_new_status = PLAYING_S;
 100             intf_Msg( "input: playing at normal rate" );
 101         }
 102         else
 103         {
 104             p_input->stream.i_new_status = FORWARD_S;
 105
 106             if( p_input->stream.control.i_rate > DEFAULT_RATE
 107                     && p_input->stream.control.i_status == FORWARD_S )
 108             {
 109                 p_input->stream.i_new_rate =
 110                                     p_input->stream.control.i_rate * 2;
 111             }
 112             else
 113             {
 114                 p_input->stream.i_new_rate = DEFAULT_RATE * 2;
 115             }
 116             intf_Msg( "input: playing at 1:%i slow motion",
 117                       p_input->stream.i_new_rate / DEFAULT_RATE );
 118         }
 119         break;
 120
 121     default:
 122     }
 123
 124     vlc_cond_signal( &p_input->stream.stream_wait );
 125     vlc_mutex_unlock( &p_input->stream.stream_lock );
 126 }
 127
 128 /*****************************************************************************
 129  * input_SetRate: change the reading rate
 130  *****************************************************************************/
 131 void input_SetRate( input_thread_t * p_input, int i_mode )
 132 {
 133     ; /* FIXME: stub */
 134 }
 135
 136 /*****************************************************************************
 137  * input_Seek: changes the stream postion
 138  *****************************************************************************/
 139 void input_Seek( input_thread_t * p_input, off_t i_position )
 140 {
 141     char        psz_time1[OFFSETTOTIME_MAX_SIZE];
 142     char        psz_time2[OFFSETTOTIME_MAX_SIZE];
 143
 144     vlc_mutex_lock( &p_input->stream.stream_lock );
 145     p_input->stream.p_selected_area->i_seek = i_position;
 146
 147     intf_Msg( "input: seeking position %lld/%lld (%s/%s)", i_position,
 148                     p_input->stream.p_selected_area->i_size,
 149                     input_OffsetToTime( p_input, psz_time1, i_position ),
 150                     input_OffsetToTime( p_input, psz_time2,
 151                                 p_input->stream.p_selected_area->i_size ) );
 152
 153     vlc_cond_signal( &p_input->stream.stream_wait );
 154     vlc_mutex_unlock( &p_input->stream.stream_lock );
 155 }
 156
 157 /*****************************************************************************
 158  * input_OffsetToTime : converts an off_t value to a time indicator, using
 159  *                      mux_rate
 160  *****************************************************************************
 161  * BEWARE : this function assumes that you already own the lock on
 162  * p_input->stream.stream_lock
 163  *****************************************************************************/
 164 char * input_OffsetToTime( input_thread_t * p_input, char * psz_buffer,
 165                            off_t i_offset )
 166 {
 167     mtime_t         i_seconds;
 168
 169     if( p_input->stream.i_mux_rate )
 170     {
 171         i_seconds = i_offset / 50 / p_input->stream.i_mux_rate;
 172         snprintf( psz_buffer, OFFSETTOTIME_MAX_SIZE, "%d:%02d:%02d",
 173                  (int) (i_seconds / (60 * 60)),
 174                  (int) (i_seconds / 60 % 60),
 175                  (int) (i_seconds % 60) );
 176         return( psz_buffer );
 177     }
 178     else
 179     {
 180         /* Divide by zero is not my friend. */
 181         sprintf( psz_buffer, "-:--:--" );
 182         return( psz_buffer );
 183     }
 184 }
 185
 186 /*****************************************************************************
 187  * input_DumpStream: dumps the contents of a stream descriptor
 188  *****************************************************************************
 189  * BEWARE : this function assumes that you already own the lock on
 190  * p_input->stream.stream_lock
 191  *****************************************************************************/
 192 void input_DumpStream( input_thread_t * p_input )
 193 {
 194     int         i, j;
 195     char        psz_time1[OFFSETTOTIME_MAX_SIZE];
 196     char        psz_time2[OFFSETTOTIME_MAX_SIZE];
 197
 198 #define S   p_input->stream
 199     intf_Msg( "input info: Dumping stream ID 0x%x", S.i_stream_id );
 200     if( S.b_seekable )
 201         intf_Msg( "input info: seekable stream, position: %lld/%lld (%s/%s)",
 202                   S.p_selected_area->i_tell, S.p_selected_area->i_size,
 203                   input_OffsetToTime( p_input, psz_time1,
 204                                       S.p_selected_area->i_tell ),
 205                   input_OffsetToTime( p_input, psz_time2,
 206                                       S.p_selected_area->i_size ) );
 207     else
 208         intf_Msg( "input info: %s", S.b_pace_control ? "pace controlled" :
 209                   "pace un-controlled" );
 210 #undef S
 211     for( i = 0; i < p_input->stream.i_pgrm_number; i++ )
 212     {
 213 #define P   p_input->stream.pp_programs[i]
 214         intf_Msg( "input info: Dumping program 0x%x, version %d (%s)",
 215                   P->i_number, P->i_version,
 216                   P->b_is_ok ? "complete" : "partial" );
 217 #undef P
 218         for( j = 0; j < p_input->stream.pp_programs[i]->i_es_number; j++ )
 219         {
 220 #define ES  p_input->stream.pp_programs[i]->pp_es[j]
 221             intf_Msg( "input info: ES 0x%x, stream 0x%x, type 0x%x, %s",
 222                       ES->i_id, ES->i_stream_id, ES->i_type,
 223                       ES->p_decoder_fifo != NULL ? "selected" : "not selected");
 224 #undef ES
 225         }
 226     }
 227 }
 228
 229 /*****************************************************************************
 230  * input_ChangeES: answers to a user request with calls to (Un)SelectES
 231  * ---
 232  * Useful since the interface plugins know p_es
 233  *****************************************************************************/
 234 int input_ChangeES( input_thread_t * p_input, es_descriptor_t * p_es,
 235                     int i_type )
 236 {
 237     boolean_t               b_audio;
 238     boolean_t               b_spu;
 239     int                     i_index;
 240     int                     i;
 241
 242     i_index = -1;
 243     b_audio = ( i_type == 1 ) ? 1 : 0;
 244     b_spu   = ( i_type == 2 ) ? 1 : 0;
 245
 246     vlc_mutex_lock( &p_input->stream.stream_lock );
 247
 248     for( i = 0 ; i < p_input->stream.i_selected_es_number ; i++ )
 249     {
 250         if( ( b_audio && p_input->stream.pp_selected_es[i]->b_audio )
 251          || ( b_spu   && p_input->stream.pp_selected_es[i]->b_spu ) )
 252         {
 253             i_index = i;
 254             break;
 255         }
 256     }
 257
 258
 259     if( p_es != NULL )
 260     {
 261
 262
 263         if( i_index != -1 )
 264         {
 265
 266             if( p_input->stream.pp_selected_es[i_index] != p_es )
 267             {
 268                 input_UnselectES( p_input,
 269                                   p_input->stream.pp_selected_es[i_index] );
 270                 input_SelectES( p_input, p_es );
 271                 intf_WarnMsg( 1, "input info: es selected -> %s (0x%x)",
 272                                                 p_es->psz_desc, p_es->i_id );
 273             }
 274         }
 275         else
 276         {
 277             input_SelectES( p_input, p_es );
 278             intf_WarnMsg( 1, "input info: es selected -> %s (0x%x)",
 279                           p_es->psz_desc, p_es->i_id );
 280         }
 281     }
 282     else
 283     {
 284         if( i_index != -1 )
 285         {
 286             intf_WarnMsg( 1, "input info: es unselected -> %s (0x%x)",
 287                           p_input->stream.pp_selected_es[i_index]->psz_desc,
 288                           p_input->stream.pp_selected_es[i_index]->i_id );
 289
 290             input_UnselectES( p_input,
 291                               p_input->stream.pp_selected_es[i_index] );
 292         }
 293     }
 294
 295     vlc_mutex_unlock( &p_input->stream.stream_lock );
 296
 297     return 0;
 298 }