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  *
   6  * Authors: Christophe Massiot <massiot@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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26 #include "defs.h"
  27
  28 #include "config.h"
  29 #include "common.h"
  30 #include "threads.h"
  31 #include "mtime.h"
  32
  33 #include "intf_msg.h"
  34
  35 #include "stream_control.h"
  36 #include "input_ext-dec.h"
  37 #include "input_ext-intf.h"
  38
  39 #include "input.h"
  40
  41 /*****************************************************************************
  42  * input_SetStatus: change the reading status
  43  *****************************************************************************/
  44 void input_SetStatus( input_thread_t * p_input, int i_mode )
  45 {
  46     vlc_mutex_lock( &p_input->stream.stream_lock );
  47
  48     switch( i_mode )
  49     {
  50     case INPUT_STATUS_END:
  51         p_input->stream.i_new_status = PLAYING_S;
  52         p_input->b_eof = 1;
  53         intf_Msg( "input: end of stream" );
  54         break;
  55
  56     case INPUT_STATUS_PLAY:
  57         p_input->stream.i_new_status = PLAYING_S;
  58         intf_Msg( "input: playing at normal rate" );
  59         break;
  60
  61     case INPUT_STATUS_PAUSE:
  62         /* XXX: we don't need to check i_status, because input_clock.c
  63          * does it for us */
  64         p_input->stream.i_new_status = PAUSE_S;
  65         intf_Msg( "input: toggling pause" );
  66         break;
  67
  68     case INPUT_STATUS_FASTER:
  69         /* If we are already going too fast, go back to default rate */
  70         if( p_input->stream.control.i_rate * 8 <= DEFAULT_RATE )
  71         {
  72             p_input->stream.i_new_status = PLAYING_S;
  73             intf_Msg( "input: playing at normal rate" );
  74         }
  75         else
  76         {
  77             p_input->stream.i_new_status = FORWARD_S;
  78
  79             if( p_input->stream.control.i_rate < DEFAULT_RATE
  80                     && p_input->stream.control.i_status == FORWARD_S )
  81             {
  82                 p_input->stream.i_new_rate =
  83                                     p_input->stream.control.i_rate / 2;
  84             }
  85             else
  86             {
  87                 p_input->stream.i_new_rate = DEFAULT_RATE / 2;
  88             }
  89             intf_Msg( "input: playing at %i:1 fast forward",
  90                       DEFAULT_RATE / p_input->stream.i_new_rate );
  91         }
  92         break;
  93
  94     case INPUT_STATUS_SLOWER:
  95         /* If we are already going too slow, go back to default rate */
  96         if( p_input->stream.control.i_rate >= 8 * DEFAULT_RATE )
  97         {
  98             p_input->stream.i_new_status = PLAYING_S;
  99             intf_Msg( "input: playing at normal rate" );
 100         }
 101         else
 102         {
 103             p_input->stream.i_new_status = FORWARD_S;
 104
 105             if( p_input->stream.control.i_rate > DEFAULT_RATE
 106                     && p_input->stream.control.i_status == FORWARD_S )
 107             {
 108                 p_input->stream.i_new_rate =
 109                                     p_input->stream.control.i_rate * 2;
 110             }
 111             else
 112             {
 113                 p_input->stream.i_new_rate = DEFAULT_RATE * 2;
 114             }
 115             intf_Msg( "input: playing at 1:%i slow motion",
 116                       p_input->stream.i_new_rate / DEFAULT_RATE );
 117         }
 118         break;
 119
 120     default:
 121     }
 122
 123     vlc_cond_signal( &p_input->stream.stream_wait );
 124     vlc_mutex_unlock( &p_input->stream.stream_lock );
 125 }
 126
 127 /*****************************************************************************
 128  * input_SetRate: change the reading rate
 129  *****************************************************************************/
 130 void input_SetRate( input_thread_t * p_input, int i_mode )
 131 {
 132     ; /* FIXME: stub */
 133 }
 134
 135 /*****************************************************************************
 136  * input_Seek: changes the stream postion
 137  *****************************************************************************/
 138 void input_Seek( input_thread_t * p_input, off_t i_position )
 139 {
 140     vlc_mutex_lock( &p_input->stream.stream_lock );
 141     p_input->stream.i_seek = i_position;
 142
 143     intf_Msg( "input: seeking position %lld/%lld", i_position,
 144                                                    p_input->stream.i_size );
 145
 146     vlc_cond_signal( &p_input->stream.stream_wait );
 147     vlc_mutex_unlock( &p_input->stream.stream_lock );
 148 }
 149