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192&(r=t[e+7])&&((n={}).pts=(14&t[e+9])<<27|(255&t[e+10])<<20|(254&t[e+11])<<12|(255&t[e+12])<<5|(254&t[e+13])>>>3,n.pts*=4,n.pts+=(6&t[e+13])>>>1,n.dts=n.pts,64&r&&(n.dts=(14&t[e+14])<<27|(255&t[e+15])<<20|(254&t[e+16])<<12|(255&t[e+17])<<5|(254&t[e+18])>>>3,n.dts*=4,n.dts+=(6&t[e+18])>>>1)),n},videoPacketContainsKeyFrame:function(t){for(var e=4+f(t),r=t.subarray(e),n=0,o=0,d=!1;o<r.byteLength-3;o++)if(1===r[o+2]){n=o+5;break}for(;n<r.byteLength;)switch(r[n]){case 0:if(0!==r[n-1]){n+=2;break}if(0!==r[n-2]){n++;break}o+3!==n-2&&"slice_layer_without_partitioning_rbsp_idr"===c(31&r[o+3])&&(d=!0);do{n++}while(1!==r[n]&&n<r.length);o=n-2,n+=3;break;case 1:if(0!==r[n-1]||0!==r[n-2]){n+=3;break}"slice_layer_without_partitioning_rbsp_idr"===c(31&r[o+3])&&(d=!0),o=n-2,n+=3;break;default:n+=3}return r=r.subarray(o),n-=o,o=0,r&&r.byteLength>3&&"slice_layer_without_partitioning_rbsp_idr"===c(31&r[o+3])&&(d=!0),d}}},879:function(t,e,r){"use strict";var n=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350],o=function(data){return data[0]<<21|data[1]<<14|data[2]<<7|data[3]},d=function(t,e,r){return unescape(function(t,e,r){var i,n="";for(i=e;i<r;i++)n+="%"+("00"+t[i].toString(16)).slice(-2);return n}(t,e,r))};t.exports={parseId3TagSize:function(header,t){var e=header[t+6]<<21|header[t+7]<<14|header[t+8]<<7|header[t+9];return(16&header[t+5])>>4?e+20:e+10},parseAdtsSize:function(header,t){var e=(224&header[t+5])>>5,r=header[t+4]<<3;return 6144&header[t+3]|r|e},parseType:function(header,t){return header[t]==="I".charCodeAt(0)&&header[t+1]==="D".charCodeAt(0)&&header[t+2]==="3".charCodeAt(0)?"timed-metadata":!0&header[t]&&!(240&~header[t+1])?"audio":null},parseSampleRate:function(t){for(var i=0;i+5<t.length;){if(255===t[i]&&240==(246&t[i+1]))return n[(60&t[i+2])>>>2];i++}return null},parseAacTimestamp:function(t){var e,r,n;e=10,64&t[5]&&(e+=4,e+=o(t.subarray(10,14)));do{if((r=o(t.subarray(e+4,e+8)))<1)return 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