dash: Reworking ProgramInfo parsing.

Information are now computed once at parsing time.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
(cherry picked from commit 5457d477)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/stream_filter/dash/mpd/BasicCMParser.cpp

@@ -116,6 +116,7 @@ bool    BasicCMParser::setMPD()
 
     this->setMPDBaseUrl(this->root);
     this->setPeriods(this->root);
+    this->mpd->setProgramInformation( this->parseProgramInformation() );
     return true;
 }
 void    BasicCMParser::setMPDBaseUrl        (Node *root)
@@ -263,6 +264,29 @@ bool BasicCMParser::parseSegment(Segment *seg, const std::map<std::string, std::
     return true;
 }
 
+ProgramInformation* BasicCMParser::parseProgramInformation()
+{
+    Node*   pInfoNode = DOMHelper::getFirstChildElementByName( this->root, "ProgramInformation" );
+    if ( pInfoNode == NULL )
+        return NULL;
+    ProgramInformation  *pInfo = new ProgramInformation;
+    const std::map<std::string, std::string>    attr = pInfoNode->getAttributes();
+    std::map<std::string, std::string>::const_iterator  it;
+    it = attr.find( "moreInformationURL" );
+    if ( it != attr.end() )
+        pInfo->setMoreInformationUrl( it->second );
+    Node*   title = DOMHelper::getFirstChildElementByName( pInfoNode, "Title" );
+    if ( title )
+        pInfo->setTitle( title->getText() );
+    Node*   source = DOMHelper::getFirstChildElementByName( pInfoNode, "Source" );
+    if ( source )
+        pInfo->setSource( source->getText() );
+    Node*   copyright = DOMHelper::getFirstChildElementByName( pInfoNode, "copyright" );
+    if ( copyright )
+        pInfo->setCopyright( copyright->getText() );
+    return pInfo;
+}
+
 void    BasicCMParser::setInitSegment       (Node *root, SegmentInfo *info)
 {
     const std::vector<Node *> initSeg = DOMHelper::getChildElementByTagName(root, "InitialisationSegmentURL");

modules/stream_filter/dash/mpd/BasicCMParser.h

@@ -66,6 +66,7 @@ namespace dash
                 void    setMPDBaseUrl       (dash::xml::Node *root);
                 bool    parseCommonAttributesElements( dash::xml::Node *node, CommonAttributesElements *common ) const;
                 bool    parseSegment( Segment *seg, const std::map<std::string, std::string> &attr );
+                ProgramInformation*     parseProgramInformation();
         };
     }
 }

modules/stream_filter/dash/mpd/MPD.cpp

@@ -109,13 +109,11 @@ void MPD::setTimeShiftBufferDepth(time_t depth)
         this->timeShiftBufferDepth = depth;
 }
 
-ProgramInformation*     MPD::getProgramInformation  () throw(ElementNotPresentException)
+const ProgramInformation*     MPD::getProgramInformation  () const
 {
-    if(this->programInfo == NULL)
-        throw ElementNotPresentException();
-
     return this->programInfo;
 }
+
 void                    MPD::addBaseUrl             (BaseUrl *url)
 {
     this->baseUrls.push_back(url);

modules/stream_filter/dash/mpd/MPD.h

@@ -63,9 +63,9 @@ namespace dash
                 void                            setMinBufferTime( time_t time );
                 time_t                          getTimeShiftBufferDepth() const;
                 void                            setTimeShiftBufferDepth( time_t depth );
-                const std::vector<BaseUrl *>&  getBaseUrls      () const;
-                const std::vector<Period *>&   getPeriods       () const;
-                ProgramInformation*     getProgramInformation   () throw(dash::exception::ElementNotPresentException);
+                const std::vector<BaseUrl *>&   getBaseUrls() const;
+                const std::vector<Period *>&    getPeriods() const;
+                const ProgramInformation*       getProgramInformation() const;
 
                 void    addPeriod               (Period *period);
                 void    addBaseUrl              (BaseUrl *url);

modules/stream_filter/dash/mpd/ProgramInformation.cpp

@@ -30,52 +30,41 @@
 using namespace dash::mpd;
 using namespace dash::exception;
 
-ProgramInformation::ProgramInformation  (std::map<std::string, std::string> attr)
-{
-    this->attributes    = attr;
-}
-ProgramInformation::~ProgramInformation ()
+const std::string &ProgramInformation::getSource() const
 {
+    return this->source;
 }
 
-std::string ProgramInformation::getTitle                () throw(ElementNotPresentException)
+void ProgramInformation::setSource(const std::string &source)
 {
-    if(this->title.empty())
-        throw ElementNotPresentException();
-
-    return this->title;
+    if ( source.empty() == false )
+        this->source = source;
 }
-std::string ProgramInformation::getCopyright            () throw(ElementNotPresentException)
-{
-    if(this->copyright.empty())
-        throw ElementNotPresentException();
 
+const std::string &ProgramInformation::getCopyright() const
+{
     return this->copyright;
 }
-std::string ProgramInformation::getSource               () throw(ElementNotPresentException)
-{
-    if(this->source.empty())
-        throw ElementNotPresentException();
 
-    return this->source;
-}
-std::string ProgramInformation::getMoreInformationUrl   () throw(AttributeNotPresentException)
+void ProgramInformation::setCopyright(const std::string &copyright)
 {
-    if(this->attributes.find("moreInformationURL") == this->attributes.end())
-        throw AttributeNotPresentException();
-
-    return this->attributes["moreInformationURL"];
-
+    if ( copyright.empty() == false )
+        this->copyright = copyright;
 }
-void        ProgramInformation::setTitle                (std::string title)
+
+void ProgramInformation::setMoreInformationUrl(const std::string &url)
 {
-    this->title = title;
+    if ( url.empty() == false )
+        this->moreInformationUrl = url;
 }
-void        ProgramInformation::setCopyright            (std::string copyright)
+
+const std::string &ProgramInformation::getTitle() const
 {
-    this->copyright = copyright;
+    return this->title;
 }
-void        ProgramInformation::setSource               (std::string source)
+
+void        ProgramInformation::setTitle                (const std::string &title)
 {
-    this->source = source;
+    if ( title.empty() == false )
+        this->title = title;
 }

modules/stream_filter/dash/mpd/ProgramInformation.h

@@ -38,23 +38,22 @@ namespace dash
         class ProgramInformation
         {
             public:
-                ProgramInformation          (std::map<std::string, std::string> attr);
-                virtual ~ProgramInformation ();
+                virtual ~ProgramInformation(){}
 
-                std::string getMoreInformationUrl   () throw(dash::exception::AttributeNotPresentException);
-                std::string getTitle                () throw(dash::exception::ElementNotPresentException);
-                std::string getSource               () throw(dash::exception::ElementNotPresentException);
-                std::string getCopyright            () throw(dash::exception::ElementNotPresentException);
-
-                void setTitle       (std::string title);
-                void setSource      (std::string source);
-                void setCopyright   (std::string copyright);
+                const std::string&  getMoreInformationUrl() const;
+                void                setMoreInformationUrl( const std::string &url );
+                const std::string&  getTitle() const;
+                void                setTitle( const std::string &title);
+                const std::string&  getSource() const;
+                void                setSource( const std::string &source);
+                const std::string&  getCopyright() const;
+                void                setCopyright( const std::string &copyright);
 
             private:
-                std::map<std::string, std::string>  attributes;
-                std::string                         title;
-                std::string                         source;
-                std::string                         copyright;
+                std::string         moreInformationUrl;
+                std::string         title;
+                std::string         source;
+                std::string         copyright;
         };
     }
 }