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n,r;this.m&&this.v?(this.ca=e,this.Ub=t||"",(n=Dr(this.m.textStreams,this.ca,this.Ub)[0]||null)&&n!=this.c.c&&(Ra(this.f.a,n,!1),this.i.streaming.alwaysStreamText||this.Lc())&&(Wi(this.c,n),$a(this))):(r=yr(e),(n=this.ec().find(function(e){return yr(e.language)==r&&(!t||e.roles.includes(t))}))&&this.Md(n))},t.Re=function(e){if(this.m&&this.v){for(var t=null,n=xe(this.m.variants),r=n.next();!r.done;r=n.next())if((r=r.value).audio.label==e){t=r;break}null!=t&&(this.xb=new Hr(t.language,"",0,e),za(this))}},t.Lc=function(){var e=this.T;return this.G?this.G.h.isTextVisible():this.a&&this.a.src&&this.a.textTracks?Fa(this).some(function(e){return"showing"==e.mode}):e},t.Xe=function(e){if(e=!!e,this.T!=e){if(this.T=e,this.g==Bo)this.G.h.setTextVisibility(e),this.i.streaming.alwaysStreamText||(e?this.c.c||0<(e=Dr(this.m.textStreams,this.ca,this.Ub)).length&&(Wi(this.c,e[0]),$a(this)):(r=this.c,(i=r.a.get("text"))&&(ia(i),aa(i).catch(function(){}),r.a.delete("text"))));else 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