avmedia/source/vlc/wrapper/Media.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <rtl/ustring.h>
  11 #include "Media.hxx"
  12 #include "SymbolLoader.hxx"
  13 #include "Instance.hxx"
  14 #include "Types.hxx"
  15 #include "Common.hxx"
  16
  17 struct libvlc_instance_t;
  18
  19 namespace avmedia
  20 {
  21 namespace vlc
  22 {
  23 namespace wrapper
  24 {
  25 namespace
  26 {
  27     libvlc_media_t* ( *libvlc_media_new_path ) ( libvlc_instance_t *p_instance, const char *path );
  28     libvlc_media_t* ( *libvlc_media_new_location ) (libvlc_instance_t *p_instance, const char *psz_mrl);
  29     void ( *libvlc_media_release ) ( libvlc_media_t *p_md );
  30     void ( *libvlc_media_retain ) ( libvlc_media_t *p_md );
  31     libvlc_time_t ( *libvlc_media_get_duration ) ( libvlc_media_t *p_md );
  32     void ( *libvlc_media_parse ) ( libvlc_media_t *p_md );
  33     int ( *libvlc_media_is_parsed ) ( libvlc_media_t *p_md );
  34     char* ( *libvlc_media_get_mrl )(libvlc_media_t *p_md);
  35
  36
  37     libvlc_media_t* InitMedia( const rtl::OUString& url, Instance& instance )
  38     {
  39         rtl::OString dest;
  40         url.convertToString(&dest, RTL_TEXTENCODING_UTF8, 0);
  41
  42         return libvlc_media_new_location(instance, dest.getStr());
  43     }
  44 }
  45
  46 bool Media::LoadSymbols()
  47 {
  48     ApiMap VLC_MEDIA_API[] =
  49     {
  50         SYM_MAP( libvlc_media_new_path ),
  51         SYM_MAP( libvlc_media_release ),
  52         SYM_MAP( libvlc_media_retain ),
  53         SYM_MAP( libvlc_media_get_duration ),
  54         SYM_MAP( libvlc_media_parse ),
  55         SYM_MAP( libvlc_media_is_parsed ),
  56         SYM_MAP( libvlc_media_get_mrl ),
  57         SYM_MAP( libvlc_media_new_location )
  58     };
  59
  60     return InitApiMap( VLC_MEDIA_API );
  61 }
  62
  63 Media::Media( const rtl::OUString& url, Instance& instance )
  64     : mMedia( InitMedia( url, instance ) )
  65 {
  66     if (mMedia == NULL)
  67     {
  68         // TODO: Error
  69     }
  70 }
  71
  72 Media::Media( const Media& other )
  73 {
  74     operator=( other );
  75 }
  76
  77 Media& Media::operator=( const Media& other )
  78 {
  79     libvlc_media_release( mMedia );
  80     mMedia = other.mMedia;
  81
  82     libvlc_media_retain( mMedia );
  83     return *this;
  84 }
  85
  86 int Media::getDuration() const
  87 {
  88     if ( !libvlc_media_is_parsed( mMedia ) )
  89         libvlc_media_parse( mMedia );
  90
  91     const int duration = libvlc_media_get_duration( mMedia );
  92     if (duration == -1)
  93     {
  94         SAL_WARN("avmedia", Common::LastErrorMessage());
  95         return 0;
  96     }
  97     else if (duration == 0)
  98     {
  99         // A duration must be greater than 0
 100         return 1;
 101     }
 102
 103     return duration;
 104 }
 105
 106 Media::~Media()
 107 {
 108     libvlc_media_release( mMedia );
 109 }
 110 }
 111 }
 112 }
 113
 114 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */