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 <wrapper/Media.hxx>
  12 #include "SymbolLoader.hxx"
  13 #include <wrapper/Instance.hxx>
  14 #include "Types.hxx"
  15 #include <wrapper/Common.hxx>
  16 #include <sal/log.hxx>
  17
  18 struct libvlc_instance_t;
  19
  20 namespace avmedia::vlc::wrapper
  21 {
  22 namespace
  23 {
  24     libvlc_media_t* ( *libvlc_media_new_path ) ( libvlc_instance_t *p_instance, const char *path );
  25     libvlc_media_t* ( *libvlc_media_new_location ) (libvlc_instance_t *p_instance, const char *psz_mrl);
  26     void ( *libvlc_media_release ) ( libvlc_media_t *p_md );
  27     void ( *libvlc_media_retain ) ( libvlc_media_t *p_md );
  28     libvlc_time_t ( *libvlc_media_get_duration ) ( libvlc_media_t *p_md );
  29     void ( *libvlc_media_parse ) ( libvlc_media_t *p_md );
  30     int ( *libvlc_media_is_parsed ) ( libvlc_media_t *p_md );
  31     char* ( *libvlc_media_get_mrl )(libvlc_media_t *p_md);
  32
  33
  34     libvlc_media_t* InitMedia( const OUString& url, Instance& instance )
  35     {
  36         OString dest;
  37         url.convertToString(&dest, RTL_TEXTENCODING_UTF8, 0);
  38
  39         return libvlc_media_new_location(instance, dest.getStr());
  40     }
  41 }
  42
  43 bool Media::LoadSymbols()
  44 {
  45     static ApiMap const VLC_MEDIA_API[] =
  46     {
  47         SYM_MAP( libvlc_media_new_path ),
  48         SYM_MAP( libvlc_media_release ),
  49         SYM_MAP( libvlc_media_retain ),
  50         SYM_MAP( libvlc_media_get_duration ),
  51         SYM_MAP( libvlc_media_parse ),
  52         SYM_MAP( libvlc_media_is_parsed ),
  53         SYM_MAP( libvlc_media_get_mrl ),
  54         SYM_MAP( libvlc_media_new_location )
  55     };
  56
  57     return InitApiMap( VLC_MEDIA_API );
  58 }
  59
  60 Media::Media( const OUString& url, Instance& instance )
  61     : mMedia( InitMedia( url, instance ) )
  62 {
  63     if (mMedia == nullptr)
  64     {
  65         // TODO: Error
  66     }
  67 }
  68
  69 Media::Media( const Media& other )
  70 {
  71     operator=( other );
  72 }
  73
  74 Media& Media::operator=( const Media& other )
  75 {
  76     libvlc_media_release( mMedia );
  77     mMedia = other.mMedia;
  78
  79     libvlc_media_retain( mMedia );
  80     return *this;
  81 }
  82
  83 int Media::getDuration() const
  84 {
  85     if ( !libvlc_media_is_parsed( mMedia ) )
  86         libvlc_media_parse( mMedia );
  87
  88     const int duration = libvlc_media_get_duration( mMedia );
  89     if (duration == -1)
  90     {
  91         SAL_WARN("avmedia", Common::LastErrorMessage());
  92         return 0;
  93     }
  94     else if (duration == 0)
  95     {
  96         // A duration must be greater than 0
  97         return 1;
  98     }
  99
 100     return duration;
 101 }
 102
 103 Media::~Media()
 104 {
 105     libvlc_media_release( mMedia );
 106 }
 107 }
 108
 109 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */