chapters.cpp
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:11k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * mkv.cpp : matroska demuxer
- *****************************************************************************
- * Copyright (C) 2003-2004 the VideoLAN team
- * $Id: eb359baf78b4f67a1ce476edfaf09785c598396a $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- * Steve Lhomme <steve.lhomme@free.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #include "chapters.hpp"
- #include "chapter_command.hpp"
- chapter_item_c::~chapter_item_c()
- {
- std::vector<chapter_codec_cmds_c*>::iterator index = codecs.begin();
- while ( index != codecs.end() )
- {
- delete (*index);
- index++;
- }
- std::vector<chapter_item_c*>::iterator index_ = sub_chapters.begin();
- while ( index_ != sub_chapters.end() )
- {
- delete (*index_);
- index_++;
- }
- }
- int chapter_item_c::PublishChapters( input_title_t & title, int & i_user_chapters, int i_level )
- {
- // add support for meta-elements from codec like DVD Titles
- if ( !b_display_seekpoint || psz_name == "" )
- {
- psz_name = GetCodecName();
- if ( psz_name != "" )
- b_display_seekpoint = true;
- }
- if (b_display_seekpoint)
- {
- seekpoint_t *sk = vlc_seekpoint_New();
- sk->i_level = i_level;
- sk->i_time_offset = i_start_time;
- sk->psz_name = strdup( psz_name.c_str() );
- // A start time of '0' is ok. A missing ChapterTime element is ok, too, because '0' is its default value.
- title.i_seekpoint++;
- title.seekpoint = (seekpoint_t**)realloc( title.seekpoint, title.i_seekpoint * sizeof( seekpoint_t* ) );
- title.seekpoint[title.i_seekpoint-1] = sk;
- if ( b_user_display )
- i_user_chapters++;
- }
- for ( size_t i=0; i<sub_chapters.size() ; i++)
- {
- sub_chapters[i]->PublishChapters( title, i_user_chapters, i_level+1 );
- }
- i_seekpoint_num = i_user_chapters;
- return i_user_chapters;
- }
- chapter_item_c *chapter_item_c::BrowseCodecPrivate( unsigned int codec_id,
- bool (*match)(const chapter_codec_cmds_c &data, const void *p_cookie, size_t i_cookie_size ),
- const void *p_cookie,
- size_t i_cookie_size )
- {
- // this chapter
- std::vector<chapter_codec_cmds_c*>::const_iterator index = codecs.begin();
- while ( index != codecs.end() )
- {
- if ( match( **index ,p_cookie, i_cookie_size ) )
- return this;
- index++;
- }
- // sub-chapters
- chapter_item_c *p_result = NULL;
- std::vector<chapter_item_c*>::const_iterator index2 = sub_chapters.begin();
- while ( index2 != sub_chapters.end() )
- {
- p_result = (*index2)->BrowseCodecPrivate( codec_id, match, p_cookie, i_cookie_size );
- if ( p_result != NULL )
- return p_result;
- index2++;
- }
- return p_result;
- }
- void chapter_item_c::Append( const chapter_item_c & chapter )
- {
- // we are appending content for the same chapter UID
- size_t i;
- chapter_item_c *p_chapter;
- for ( i=0; i<chapter.sub_chapters.size(); i++ )
- {
- p_chapter = FindChapter( chapter.sub_chapters[i]->i_uid );
- if ( p_chapter != NULL )
- {
- p_chapter->Append( *chapter.sub_chapters[i] );
- }
- else
- {
- sub_chapters.push_back( chapter.sub_chapters[i] );
- }
- }
- i_user_start_time = min( i_user_start_time, chapter.i_user_start_time );
- i_user_end_time = max( i_user_end_time, chapter.i_user_end_time );
- }
- chapter_item_c * chapter_item_c::FindChapter( int64_t i_find_uid )
- {
- size_t i;
- chapter_item_c *p_result = NULL;
- if ( i_uid == i_find_uid )
- return this;
- for ( i=0; i<sub_chapters.size(); i++)
- {
- p_result = sub_chapters[i]->FindChapter( i_find_uid );
- if ( p_result != NULL )
- break;
- }
- return p_result;
- }
- std::string chapter_item_c::GetCodecName( bool f_for_title ) const
- {
- std::string result;
- std::vector<chapter_codec_cmds_c*>::const_iterator index = codecs.begin();
- while ( index != codecs.end() )
- {
- result = (*index)->GetCodecName( f_for_title );
- if ( result != "" )
- break;
- index++;
- }
- return result;
- }
- int16 chapter_item_c::GetTitleNumber( ) const
- {
- int result = -1;
- std::vector<chapter_codec_cmds_c*>::const_iterator index = codecs.begin();
- while ( index != codecs.end() )
- {
- result = (*index)->GetTitleNumber( );
- if ( result >= 0 )
- break;
- index++;
- }
- return result;
- }
- int64_t chapter_item_c::RefreshChapters( bool b_ordered, int64_t i_prev_user_time )
- {
- int64_t i_user_time = i_prev_user_time;
- // first the sub-chapters, and then ourself
- std::vector<chapter_item_c*>::iterator index = sub_chapters.begin();
- while ( index != sub_chapters.end() )
- {
- i_user_time = (*index)->RefreshChapters( b_ordered, i_user_time );
- index++;
- }
- if ( b_ordered )
- {
- // the ordered chapters always start at zero
- if ( i_prev_user_time == -1 )
- {
- if ( i_user_time == -1 )
- i_user_time = 0;
- i_prev_user_time = 0;
- }
- i_user_start_time = i_prev_user_time;
- if ( i_end_time != -1 && i_user_time == i_prev_user_time )
- {
- i_user_end_time = i_user_start_time - i_start_time + i_end_time;
- }
- else
- {
- i_user_end_time = i_user_time;
- }
- }
- else
- {
- if ( sub_chapters.begin() != sub_chapters.end() )
- std::sort( sub_chapters.begin(), sub_chapters.end(), chapter_item_c::CompareTimecode );
- i_user_start_time = i_start_time;
- if ( i_end_time != -1 )
- i_user_end_time = i_end_time;
- else if ( i_user_time != -1 )
- i_user_end_time = i_user_time;
- else
- i_user_end_time = i_user_start_time;
- }
- return i_user_end_time;
- }
- chapter_item_c *chapter_item_c::FindTimecode( mtime_t i_user_timecode, const chapter_item_c * p_current, bool & b_found )
- {
- chapter_item_c *psz_result = NULL;
- if ( p_current == this )
- b_found = true;
- if ( i_user_timecode >= i_user_start_time &&
- ( i_user_timecode < i_user_end_time ||
- ( i_user_start_time == i_user_end_time && i_user_timecode == i_user_end_time )))
- {
- std::vector<chapter_item_c*>::iterator index = sub_chapters.begin();
- while ( index != sub_chapters.end() && ((p_current == NULL && psz_result == NULL) || (p_current != NULL && (!b_found || psz_result == NULL))))
- {
- psz_result = (*index)->FindTimecode( i_user_timecode, p_current, b_found );
- index++;
- }
- if ( psz_result == NULL )
- psz_result = this;
- }
- return psz_result;
- }
- bool chapter_item_c::ParentOf( const chapter_item_c & item ) const
- {
- if ( &item == this )
- return true;
- std::vector<chapter_item_c*>::const_iterator index = sub_chapters.begin();
- while ( index != sub_chapters.end() )
- {
- if ( (*index)->ParentOf( item ) )
- return true;
- index++;
- }
- return false;
- }
- bool chapter_item_c::Enter( bool b_do_subs )
- {
- bool f_result = false;
- std::vector<chapter_codec_cmds_c*>::iterator index = codecs.begin();
- while ( index != codecs.end() )
- {
- f_result |= (*index)->Enter();
- index++;
- }
- if ( b_do_subs )
- {
- // sub chapters
- std::vector<chapter_item_c*>::iterator index_ = sub_chapters.begin();
- while ( index_ != sub_chapters.end() )
- {
- f_result |= (*index_)->Enter( true );
- index_++;
- }
- }
- return f_result;
- }
- bool chapter_item_c::Leave( bool b_do_subs )
- {
- bool f_result = false;
- b_is_leaving = true;
- std::vector<chapter_codec_cmds_c*>::iterator index = codecs.begin();
- while ( index != codecs.end() )
- {
- f_result |= (*index)->Leave();
- index++;
- }
- if ( b_do_subs )
- {
- // sub chapters
- std::vector<chapter_item_c*>::iterator index_ = sub_chapters.begin();
- while ( index_ != sub_chapters.end() )
- {
- f_result |= (*index_)->Leave( true );
- index_++;
- }
- }
- b_is_leaving = false;
- return f_result;
- }
- bool chapter_item_c::EnterAndLeave( chapter_item_c *p_item, bool b_final_enter )
- {
- chapter_item_c *p_common_parent = p_item;
- // leave, up to a common parent
- while ( p_common_parent != NULL && !p_common_parent->ParentOf( *this ) )
- {
- if ( !p_common_parent->b_is_leaving && p_common_parent->Leave( false ) )
- return true;
- p_common_parent = p_common_parent->psz_parent;
- }
- // enter from the parent to <this>
- if ( p_common_parent != NULL )
- {
- do
- {
- if ( p_common_parent == this )
- return Enter( true );
- for ( size_t i = 0; i<p_common_parent->sub_chapters.size(); i++ )
- {
- if ( p_common_parent->sub_chapters[i]->ParentOf( *this ) )
- {
- p_common_parent = p_common_parent->sub_chapters[i];
- if ( p_common_parent != this )
- if ( p_common_parent->Enter( false ) )
- return true;
- break;
- }
- }
- } while ( 1 );
- }
- if ( b_final_enter )
- return Enter( true );
- else
- return false;
- }
- /* Chapter Edition Class */
- std::string chapter_edition_c::GetMainName() const
- {
- if ( sub_chapters.size() )
- {
- return sub_chapters[0]->GetCodecName( true );
- }
- return "";
- }
- void chapter_edition_c::RefreshChapters( )
- {
- chapter_item_c::RefreshChapters( b_ordered, -1 );
- b_display_seekpoint = false;
- }
- mtime_t chapter_edition_c::Duration() const
- {
- mtime_t i_result = 0;
- if ( sub_chapters.size() )
- {
- std::vector<chapter_item_c*>::const_iterator index = sub_chapters.end();
- index--;
- i_result = (*index)->i_user_end_time;
- }
- return i_result;
- }
- chapter_item_c * chapter_edition_c::FindTimecode( mtime_t i_timecode, const chapter_item_c * p_current )
- {
- if ( !b_ordered )
- p_current = NULL;
- bool b_found_current = false;
- return chapter_item_c::FindTimecode( i_timecode, p_current, b_found_current );
- }