[CRASH PROBLEM]Best way to change Subtitles and Audio Track

[StErMi]

This is my way: i'm going to show only the way that I use to change subtitles

Code: Select all

void playerVLC::refreshSubtitleDescriptions() { QString text = ""; // Refresh the SUBTITLES libvlc_exception_clear(&_vlcexcep); _subd_head = libvlc_video_get_spu_description( _mp, &_vlcexcep ); //_subd_current = _subd_head; raise(&_vlcexcep); _count_spu = libvlc_video_get_spu_count( _mp, &_vlcexcep); raise(&_vlcexcep); _current_spu = libvlc_video_get_spu( _mp, &_vlcexcep); raise(&_vlcexcep); //INIT if ( !_subd_current ) _subd_current = _subd_head; libvlc_track_description_t *temp; temp = _subd_head; while ( temp->p_next ) { text.append( QString("%1 ").arg(temp->i_id) ); text.append(temp->psz_name); text.append( " -- " ); temp = temp->p_next; } ui.tmp->setText( text ); } void playerVLC::on_pushButton_2_clicked(){ QString text = ""; ui.tmp->setText( text ); if ( !_subd_head ) refreshSubtitleDescriptions(); libvlc_exception_clear(&_vlcexcep); if ( !_subd_current->p_next ) _subd_current = _subd_head; else _subd_current = _subd_current->p_next; libvlc_video_set_spu( _mp, (_subd_current->i_id == -1) ? 0 : _subd_current->i_id, &_vlcexcep ); raise(&_vlcexcep); text.append(QString("[%1] ").arg(_subd_current->i_id) ); text.append(_subd_current->psz_name); }

I printed the list of subtitle that I get with the while in refreshSubtitleDescriptions function.


-1 Disable -- 4 Track 1 - [Italiano] -- 5 Track 2 - [Italiano] -- 6 Track 3 - [English] -- 10 Track 4 -- 11 Track 5 -- 12 Track 6 --
Take this for example: -1 Disable the number is the i_id member and "Disable " is the psz_name member of libvlc_track_description_t

So in total I have 8 subtitles. The problem is that I think libvlc_video_set_spu accepts only values between 0 and ( libvlc_video_get_spu_count - 1 )
When I try to set the subtitle with i_id = -1 or >=8 the applications crashes.

Can you show me the best way to set the subtitles using libvlc_track_description_t ( I need to show to the user the psz_name member ) ?