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codem-isoboxer

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codem-isoboxer - npm Package Compare versions

Comparing version 0.2.5 to 0.2.6

4

CHANGELOG.md

@@ -0,1 +1,5 @@

## codem-isoboxer 0.2.6 (2016/09/16) ##
* Added API to add additional box parsers using `addBoxParser` (@NatalyMagluy)
## codem-isoboxer 0.2.4 / 0.2.5 (2016/08/22) ##

@@ -2,0 +6,0 @@

14

dist/iso_boxer.js

@@ -1,2 +0,2 @@

/*! codem-isoboxer v0.2.5 https://github.com/madebyhiro/codem-isoboxer/blob/master/LICENSE.txt */
/*! codem-isoboxer v0.2.6 https://github.com/madebyhiro/codem-isoboxer/blob/master/LICENSE.txt */
var ISOBoxer = {};

@@ -8,2 +8,9 @@

ISOBoxer.addBoxParser = function(type, parser) {
if (typeof type !== 'string' || typeof parser !== 'function') {
return;
}
ISOBox.prototype._boxParsers[type] = parser;
};
ISOBoxer.Utils = {};

@@ -54,4 +61,5 @@ ISOBoxer.Utils.dataViewToString = function(dataView, encoding) {

if (typeof exports !== 'undefined') {
exports.parseBuffer = ISOBoxer.parseBuffer;
exports.Utils = ISOBoxer.Utils;
exports.parseBuffer = ISOBoxer.parseBuffer;
exports.addBoxParser = ISOBoxer.addBoxParser;
exports.Utils = ISOBoxer.Utils;
};

@@ -58,0 +66,0 @@ ISOBoxer.Cursor = function(initialOffset) {

4

dist/iso_boxer.min.js

@@ -1,2 +0,2 @@

/*! codem-isoboxer v0.2.5 https://github.com/madebyhiro/codem-isoboxer/blob/master/LICENSE.txt */
var ISOBoxer={};ISOBoxer.parseBuffer=function(a){return new ISOFile(a).parse()},ISOBoxer.Utils={},ISOBoxer.Utils.dataViewToString=function(a,b){var c=b||"utf-8";if("undefined"!=typeof TextDecoder)return new TextDecoder(c).decode(a);var d=[],e=0;if("utf-8"===c)for(;e<a.byteLength;){var f=a.getUint8(e++);f<128||(f<224?(f=(31&f)<<6,f|=63&a.getUint8(e++)):f<240?(f=(15&f)<<12,f|=(63&a.getUint8(e++))<<6,f|=63&a.getUint8(e++)):(f=(7&f)<<18,f|=(63&a.getUint8(e++))<<12,f|=(63&a.getUint8(e++))<<6,f|=63&a.getUint8(e++))),d.push(String.fromCharCode(f))}else for(;e<a.byteLength;)d.push(String.fromCharCode(a.getUint8(e++)));return d.join("")},"undefined"!=typeof exports&&(exports.parseBuffer=ISOBoxer.parseBuffer,exports.Utils=ISOBoxer.Utils),ISOBoxer.Cursor=function(a){this.offset="undefined"==typeof a?0:a};var ISOFile=function(a){this._raw=new DataView(a),this._cursor=new ISOBoxer.Cursor,this.boxes=[]};ISOFile.prototype.fetch=function(a){var b=this.fetchAll(a,!0);return b.length?b[0]:null},ISOFile.prototype.fetchAll=function(a,b){var c=[];return ISOFile._sweep.call(this,a,c,b),c},ISOFile.prototype.parse=function(){for(this._cursor.offset=0,this.boxes=[];this._cursor.offset<this._raw.byteLength;){var a=ISOBox.parse(this);if("undefined"==typeof a.type)break;this.boxes.push(a)}return this},ISOFile._sweep=function(a,b,c){this.type&&this.type==a&&b.push(this);for(var d in this.boxes){if(b.length&&c)return;ISOFile._sweep.call(this.boxes[d],a,b,c)}};var ISOBox=function(){this._cursor=new ISOBoxer.Cursor};ISOBox.parse=function(a){var b=new ISOBox;return b._offset=a._cursor.offset,b._root=a._root?a._root:a,b._raw=a._raw,b._parent=a,b._parseBox(),a._cursor.offset=b._raw.byteOffset+b._raw.byteLength,b},ISOBox.prototype._readInt=function(a){var b=null;switch(a){case 8:b=this._raw.getInt8(this._cursor.offset-this._raw.byteOffset);break;case 16:b=this._raw.getInt16(this._cursor.offset-this._raw.byteOffset);break;case 32:b=this._raw.getInt32(this._cursor.offset-this._raw.byteOffset);break;case 64:var c=this._raw.getInt32(this._cursor.offset-this._raw.byteOffset),d=this._raw.getInt32(this._cursor.offset-this._raw.byteOffset+4);b=c*Math.pow(2,32)+d}return this._cursor.offset+=a>>3,b},ISOBox.prototype._readUint=function(a){var b=null;switch(a){case 8:b=this._raw.getUint8(this._cursor.offset-this._raw.byteOffset);break;case 16:b=this._raw.getUint16(this._cursor.offset-this._raw.byteOffset);break;case 24:var c=this._raw.getUint16(this._cursor.offset-this._raw.byteOffset),d=this._raw.getUint8(this._cursor.offset-this._raw.byteOffset+2);b=(c<<8)+d;break;case 32:b=this._raw.getUint32(this._cursor.offset-this._raw.byteOffset);break;case 64:var c=this._raw.getUint32(this._cursor.offset-this._raw.byteOffset),d=this._raw.getUint32(this._cursor.offset-this._raw.byteOffset+4);b=c*Math.pow(2,32)+d}return this._cursor.offset+=a>>3,b},ISOBox.prototype._readString=function(a){for(var b="",c=0;c<a;c++){var d=this._readUint(8);b+=String.fromCharCode(d)}return b},ISOBox.prototype._readTerminatedString=function(){for(var a="";this._cursor.offset-this._offset<this._raw.byteLength;){var b=this._readUint(8);if(0==b)break;a+=String.fromCharCode(b)}return a},ISOBox.prototype._readTemplate=function(a){var b=this._readUint(a/2),c=this._readUint(a/2);return b+c/Math.pow(2,a/2)},ISOBox.prototype._parseBox=function(){if(this._cursor.offset=this._offset,this._offset+8>this._raw.buffer.byteLength)return void(this._root._incomplete=!0);switch(this.size=this._readUint(32),this.type=this._readString(4),1==this.size&&(this.largesize=this._readUint(64)),"uuid"==this.type&&(this.usertype=this._readString(16)),this.size){case 0:this._raw=new DataView(this._raw.buffer,this._offset,this._raw.byteLength-this._cursor.offset);break;case 1:this._offset+this.size>this._raw.buffer.byteLength?(this._incomplete=!0,this._root._incomplete=!0):this._raw=new DataView(this._raw.buffer,this._offset,this.largesize);break;default:this._offset+this.size>this._raw.buffer.byteLength?(this._incomplete=!0,this._root._incomplete=!0):this._raw=new DataView(this._raw.buffer,this._offset,this.size)}!this._incomplete&&this._boxParsers[this.type]&&this._boxParsers[this.type].call(this)},ISOBox.prototype._parseFullBox=function(){this.version=this._readUint(8),this.flags=this._readUint(24)},ISOBox.prototype._boxParsers={},ISOBox.prototype._boxParsers.avc1=function(){this.version=this._readUint(16),this.revision_level=this._readUint(16),this.vendor=this._readUint(32),this.temporal_quality=this._readUint(32),this.spatial_quality=this._readUint(32),this.width=this._readUint(16),this.height=this._readUint(16),this.horizontal_resolution=this._readUint(32),this.vertical_resolution=this._readUint(32),this.data_size=this._readUint(32),this.frame_count=this._readUint(16),this.compressor_name=this._readUint(32),this.depth=this._readUint(16),this.color_table_id=this._readUint(16)},["moov","trak","tref","mdia","minf","stbl","edts","dinf","mvex","moof","traf","mfra","udta","meco","strk","vttc"].forEach(function(a){ISOBox.prototype._boxParsers[a]=function(){for(this.boxes=[];this._cursor.offset-this._raw.byteOffset<this._raw.byteLength;)this.boxes.push(ISOBox.parse(this))}}),ISOBox.prototype._boxParsers.elst=function(){this._parseFullBox(),this.entry_count=this._readUint(32),this.entries=[];for(var a=1;a<=this.entry_count;a++){var b={};1==this.version?(b.segment_duration=this._readUint(64),b.media_time=this._readInt(64)):(b.segment_duration=this._readUint(32),b.media_time=this._readInt(32)),b.media_rate_integer=this._readInt(16),b.media_rate_fraction=this._readInt(16),this.entries.push(b)}},ISOBox.prototype._boxParsers.emsg=function(){this._parseFullBox(),this.scheme_id_uri=this._readTerminatedString(),this.value=this._readTerminatedString(),this.timescale=this._readUint(32),this.presentation_time_delta=this._readUint(32),this.event_duration=this._readUint(32),this.id=this._readUint(32),this.message_data=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset))},ISOBox.prototype._boxParsers.free=ISOBox.prototype._boxParsers.skip=function(){this.data=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset))},ISOBox.prototype._boxParsers.ftyp=ISOBox.prototype._boxParsers.styp=function(){for(this.major_brand=this._readString(4),this.minor_versions=this._readUint(32),this.compatible_brands=[];this._cursor.offset-this._raw.byteOffset<this._raw.byteLength;)this.compatible_brands.push(this._readString(4))},ISOBox.prototype._boxParsers.hdlr=function(){this._parseFullBox(),this.pre_defined=this._readUint(32),this.handler_type=this._readString(4),this.reserved=[this._readUint(32),this._readUint(32),this._readUint(32)],this.name=this._readTerminatedString()},ISOBox.prototype._boxParsers.mdat=function(){this.data=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset))},ISOBox.prototype._boxParsers.mdhd=function(){this._parseFullBox(),1==this.version?(this.creation_time=this._readUint(64),this.modification_time=this._readUint(64),this.timescale=this._readUint(32),this.duration=this._readUint(64)):(this.creation_time=this._readUint(32),this.modification_time=this._readUint(32),this.timescale=this._readUint(32),this.duration=this._readUint(32));var a=this._readUint(16);this.pad=a>>15,this.language=String.fromCharCode((a>>10&31)+96,(a>>5&31)+96,(31&a)+96),this.pre_defined=this._readUint(16)},ISOBox.prototype._boxParsers.mehd=function(){this._parseFullBox(),1==this.version?this.fragment_duration=this._readUint(64):this.fragment_duration=this._readUint(32)},ISOBox.prototype._boxParsers.mfhd=function(){this._parseFullBox(),this.sequence_number=this._readUint(32)},ISOBox.prototype._boxParsers.mfro=function(){this._parseFullBox(),this.mfra_size=this._readUint(32)},ISOBox.prototype._boxParsers.mp4a=function(){this.reserved1=[this._readUint(32),this._readUint(32)],this.channelcount=this._readUint(16),this.samplesize=this._readUint(16),this.pre_defined=this._readUint(16),this.reserved2=this._readUint(16),this.sample_rate=this._readUint(32)},ISOBox.prototype._boxParsers.mvhd=function(){this._parseFullBox(),1==this.version?(this.creation_time=this._readUint(64),this.modification_time=this._readUint(64),this.timescale=this._readUint(32),this.duration=this._readUint(64)):(this.creation_time=this._readUint(32),this.modification_time=this._readUint(32),this.timescale=this._readUint(32),this.duration=this._readUint(32)),this.rate=this._readTemplate(32),this.volume=this._readTemplate(16),this.reserved1=this._readUint(16),this.reserved2=[this._readUint(32),this._readUint(32)],this.matrix=[];for(var a=0;a<9;a++)this.matrix.push(this._readTemplate(32));this.pre_defined=[];for(var a=0;a<6;a++)this.pre_defined.push(this._readUint(32));this.next_track_ID=this._readUint(32)},ISOBox.prototype._boxParsers.payl=function(){var a=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset));this.cue_text=ISOBoxer.Utils.dataViewToString(a)},ISOBox.prototype._boxParsers.sidx=function(){this._parseFullBox(),this.reference_ID=this._readUint(32),this.timescale=this._readUint(32),0==this.version?(this.earliest_presentation_time=this._readUint(32),this.first_offset=this._readUint(32)):(this.earliest_presentation_time=this._readUint(64),this.first_offset=this._readUint(64)),this.reserved=this._readUint(16),this.reference_count=this._readUint(16),this.references=[];for(var a=0;a<this.reference_count;a++){var b={},c=this._readUint(32);b.reference_type=c>>31&1,b.referenced_size=2147483647&c,b.subsegment_duration=this._readUint(32);var d=this._readUint(32);b.starts_with_SAP=d>>31&1,b.SAP_type=d>>28&7,b.SAP_delta_time=268435455&d,this.references.push(b)}},ISOBox.prototype._boxParsers.ssix=function(){this._parseFullBox(),this.subsegment_count=this._readUint(32),this.subsegments=[];for(var a=0;a<this.subsegment_count;a++){var b={};b.ranges_count=this._readUint(32),b.ranges=[];for(var c=0;c<b.ranges_count;c++){var d={};d.level=this._readUint(8),d.range_size=this._readUint(24),b.ranges.push(d)}this.subsegments.push(b)}},ISOBox.prototype._boxParsers.stsd=function(){this._parseFullBox(),this.entry_count=this._readUint(32),this.entries=[];for(var a=0;a<this.entry_count;a++)this.entries.push(ISOBox.parse(this))},ISOBox.prototype._boxParsers.tfdt=function(){this._parseFullBox(),1==this.version?this.baseMediaDecodeTime=this._readUint(64):this.baseMediaDecodeTime=this._readUint(32)},ISOBox.prototype._boxParsers.tfhd=function(){this._parseFullBox(),this.track_ID=this._readUint(32),1&this.flags&&(this.base_data_offset=this._readUint(64)),2&this.flags&&(this.sample_description_offset=this._readUint(32)),8&this.flags&&(this.default_sample_duration=this._readUint(32)),16&this.flags&&(this.default_sample_size=this._readUint(32)),32&this.flags&&(this.default_sample_flags=this._readUint(32))},ISOBox.prototype._boxParsers.tfra=function(){this._parseFullBox(),this.track_ID=this._readUint(32),this._packed=this._readUint(32),this.reserved=this._packed>>>6,this.length_size_of_traf_num=(this._packed&&0xffff00000000)>>>4,this.length_size_of_trun_num=(this._packed&&4294901760)>>>2,this.length_size_of_sample_num=this._packed&&255,this.number_of_entry=this._readUint(32),this.entries=[];for(var a=0;a<this.number_of_entry;a++){var b={};1==this.version?(b.time=this._readUint(64),b.moof_offset=this._readUint(64)):(b.time=this._readUint(32),b.moof_offset=this._readUint(32)),b.traf_number=this._readUint(8*(this.length_size_of_traf_num+1)),b.trun_number=this._readUint(8*(this.length_size_of_trun_num+1)),b.sample_number=this._readUint(8*(this.length_size_of_sample_num+1)),this.entries.push(b)}},ISOBox.prototype._boxParsers.tkhd=function(){this._parseFullBox(),1==this.version?(this.creation_time=this._readUint(64),this.modification_time=this._readUint(64),this.track_ID=this._readUint(32),this.reserved1=this._readUint(32),this.duration=this._readUint(64)):(this.creation_time=this._readUint(32),this.modification_time=this._readUint(32),this.track_ID=this._readUint(32),this.reserved1=this._readUint(32),this.duration=this._readUint(32)),this.reserved2=[this._readUint(32),this._readUint(32)],this.layer=this._readUint(16),this.alternate_group=this._readUint(16),this.volume=this._readTemplate(16),this.reserved3=this._readUint(16),this.matrix=[];for(var a=0;a<9;a++)this.matrix.push(this._readTemplate(32));this.width=this._readUint(32),this.height=this._readUint(32)},ISOBox.prototype._boxParsers.trex=function(){this._parseFullBox(),this.track_ID=this._readUint(32),this.default_sample_description_index=this._readUint(32),this.default_sample_duration=this._readUint(32),this.default_sample_size=this._readUint(32),this.default_sample_flags=this._readUint(32)},ISOBox.prototype._boxParsers.trun=function(){this._parseFullBox(),this.sample_count=this._readUint(32),1&this.flags&&(this.data_offset=this._readInt(32)),4&this.flags&&(this.first_sample_flags=this._readUint(32)),this.samples=[];for(var a=0;a<this.sample_count;a++){var b={};256&this.flags&&(b.sample_duration=this._readUint(32)),512&this.flags&&(b.sample_size=this._readUint(32)),1024&this.flags&&(b.sample_flags=this._readUint(32)),2048&this.flags&&(0==this.version?b.sample_composition_time_offset=this._readUint(32):b.sample_composition_time_offset=this._readInt(32)),this.samples.push(b)}},ISOBox.prototype._boxParsers.vlab=function(){var a=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset));this.source_label=ISOBoxer.Utils.dataViewToString(a)},ISOBox.prototype._boxParsers.vttC=function(){var a=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset));this.config=ISOBoxer.Utils.dataViewToString(a)},ISOBox.prototype._boxParsers.vtte=function(){};
/*! codem-isoboxer v0.2.6 https://github.com/madebyhiro/codem-isoboxer/blob/master/LICENSE.txt */
var ISOBoxer={};ISOBoxer.parseBuffer=function(a){return new ISOFile(a).parse()},ISOBoxer.addBoxParser=function(a,b){"string"==typeof a&&"function"==typeof b&&(ISOBox.prototype._boxParsers[a]=b)},ISOBoxer.Utils={},ISOBoxer.Utils.dataViewToString=function(a,b){var c=b||"utf-8";if("undefined"!=typeof TextDecoder)return new TextDecoder(c).decode(a);var d=[],e=0;if("utf-8"===c)for(;e<a.byteLength;){var f=a.getUint8(e++);f<128||(f<224?(f=(31&f)<<6,f|=63&a.getUint8(e++)):f<240?(f=(15&f)<<12,f|=(63&a.getUint8(e++))<<6,f|=63&a.getUint8(e++)):(f=(7&f)<<18,f|=(63&a.getUint8(e++))<<12,f|=(63&a.getUint8(e++))<<6,f|=63&a.getUint8(e++))),d.push(String.fromCharCode(f))}else for(;e<a.byteLength;)d.push(String.fromCharCode(a.getUint8(e++)));return d.join("")},"undefined"!=typeof exports&&(exports.parseBuffer=ISOBoxer.parseBuffer,exports.addBoxParser=ISOBoxer.addBoxParser,exports.Utils=ISOBoxer.Utils),ISOBoxer.Cursor=function(a){this.offset="undefined"==typeof a?0:a};var ISOFile=function(a){this._raw=new DataView(a),this._cursor=new ISOBoxer.Cursor,this.boxes=[]};ISOFile.prototype.fetch=function(a){var b=this.fetchAll(a,!0);return b.length?b[0]:null},ISOFile.prototype.fetchAll=function(a,b){var c=[];return ISOFile._sweep.call(this,a,c,b),c},ISOFile.prototype.parse=function(){for(this._cursor.offset=0,this.boxes=[];this._cursor.offset<this._raw.byteLength;){var a=ISOBox.parse(this);if("undefined"==typeof a.type)break;this.boxes.push(a)}return this},ISOFile._sweep=function(a,b,c){this.type&&this.type==a&&b.push(this);for(var d in this.boxes){if(b.length&&c)return;ISOFile._sweep.call(this.boxes[d],a,b,c)}};var ISOBox=function(){this._cursor=new ISOBoxer.Cursor};ISOBox.parse=function(a){var b=new ISOBox;return b._offset=a._cursor.offset,b._root=a._root?a._root:a,b._raw=a._raw,b._parent=a,b._parseBox(),a._cursor.offset=b._raw.byteOffset+b._raw.byteLength,b},ISOBox.prototype._readInt=function(a){var b=null;switch(a){case 8:b=this._raw.getInt8(this._cursor.offset-this._raw.byteOffset);break;case 16:b=this._raw.getInt16(this._cursor.offset-this._raw.byteOffset);break;case 32:b=this._raw.getInt32(this._cursor.offset-this._raw.byteOffset);break;case 64:var c=this._raw.getInt32(this._cursor.offset-this._raw.byteOffset),d=this._raw.getInt32(this._cursor.offset-this._raw.byteOffset+4);b=c*Math.pow(2,32)+d}return this._cursor.offset+=a>>3,b},ISOBox.prototype._readUint=function(a){var b=null;switch(a){case 8:b=this._raw.getUint8(this._cursor.offset-this._raw.byteOffset);break;case 16:b=this._raw.getUint16(this._cursor.offset-this._raw.byteOffset);break;case 24:var c=this._raw.getUint16(this._cursor.offset-this._raw.byteOffset),d=this._raw.getUint8(this._cursor.offset-this._raw.byteOffset+2);b=(c<<8)+d;break;case 32:b=this._raw.getUint32(this._cursor.offset-this._raw.byteOffset);break;case 64:var c=this._raw.getUint32(this._cursor.offset-this._raw.byteOffset),d=this._raw.getUint32(this._cursor.offset-this._raw.byteOffset+4);b=c*Math.pow(2,32)+d}return this._cursor.offset+=a>>3,b},ISOBox.prototype._readString=function(a){for(var b="",c=0;c<a;c++){var d=this._readUint(8);b+=String.fromCharCode(d)}return b},ISOBox.prototype._readTerminatedString=function(){for(var a="";this._cursor.offset-this._offset<this._raw.byteLength;){var b=this._readUint(8);if(0==b)break;a+=String.fromCharCode(b)}return a},ISOBox.prototype._readTemplate=function(a){var b=this._readUint(a/2),c=this._readUint(a/2);return b+c/Math.pow(2,a/2)},ISOBox.prototype._parseBox=function(){if(this._cursor.offset=this._offset,this._offset+8>this._raw.buffer.byteLength)return void(this._root._incomplete=!0);switch(this.size=this._readUint(32),this.type=this._readString(4),1==this.size&&(this.largesize=this._readUint(64)),"uuid"==this.type&&(this.usertype=this._readString(16)),this.size){case 0:this._raw=new DataView(this._raw.buffer,this._offset,this._raw.byteLength-this._cursor.offset);break;case 1:this._offset+this.size>this._raw.buffer.byteLength?(this._incomplete=!0,this._root._incomplete=!0):this._raw=new DataView(this._raw.buffer,this._offset,this.largesize);break;default:this._offset+this.size>this._raw.buffer.byteLength?(this._incomplete=!0,this._root._incomplete=!0):this._raw=new DataView(this._raw.buffer,this._offset,this.size)}!this._incomplete&&this._boxParsers[this.type]&&this._boxParsers[this.type].call(this)},ISOBox.prototype._parseFullBox=function(){this.version=this._readUint(8),this.flags=this._readUint(24)},ISOBox.prototype._boxParsers={},ISOBox.prototype._boxParsers.avc1=function(){this.version=this._readUint(16),this.revision_level=this._readUint(16),this.vendor=this._readUint(32),this.temporal_quality=this._readUint(32),this.spatial_quality=this._readUint(32),this.width=this._readUint(16),this.height=this._readUint(16),this.horizontal_resolution=this._readUint(32),this.vertical_resolution=this._readUint(32),this.data_size=this._readUint(32),this.frame_count=this._readUint(16),this.compressor_name=this._readUint(32),this.depth=this._readUint(16),this.color_table_id=this._readUint(16)},["moov","trak","tref","mdia","minf","stbl","edts","dinf","mvex","moof","traf","mfra","udta","meco","strk","vttc"].forEach(function(a){ISOBox.prototype._boxParsers[a]=function(){for(this.boxes=[];this._cursor.offset-this._raw.byteOffset<this._raw.byteLength;)this.boxes.push(ISOBox.parse(this))}}),ISOBox.prototype._boxParsers.elst=function(){this._parseFullBox(),this.entry_count=this._readUint(32),this.entries=[];for(var a=1;a<=this.entry_count;a++){var b={};1==this.version?(b.segment_duration=this._readUint(64),b.media_time=this._readInt(64)):(b.segment_duration=this._readUint(32),b.media_time=this._readInt(32)),b.media_rate_integer=this._readInt(16),b.media_rate_fraction=this._readInt(16),this.entries.push(b)}},ISOBox.prototype._boxParsers.emsg=function(){this._parseFullBox(),this.scheme_id_uri=this._readTerminatedString(),this.value=this._readTerminatedString(),this.timescale=this._readUint(32),this.presentation_time_delta=this._readUint(32),this.event_duration=this._readUint(32),this.id=this._readUint(32),this.message_data=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset))},ISOBox.prototype._boxParsers.free=ISOBox.prototype._boxParsers.skip=function(){this.data=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset))},ISOBox.prototype._boxParsers.ftyp=ISOBox.prototype._boxParsers.styp=function(){for(this.major_brand=this._readString(4),this.minor_versions=this._readUint(32),this.compatible_brands=[];this._cursor.offset-this._raw.byteOffset<this._raw.byteLength;)this.compatible_brands.push(this._readString(4))},ISOBox.prototype._boxParsers.hdlr=function(){this._parseFullBox(),this.pre_defined=this._readUint(32),this.handler_type=this._readString(4),this.reserved=[this._readUint(32),this._readUint(32),this._readUint(32)],this.name=this._readTerminatedString()},ISOBox.prototype._boxParsers.mdat=function(){this.data=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset))},ISOBox.prototype._boxParsers.mdhd=function(){this._parseFullBox(),1==this.version?(this.creation_time=this._readUint(64),this.modification_time=this._readUint(64),this.timescale=this._readUint(32),this.duration=this._readUint(64)):(this.creation_time=this._readUint(32),this.modification_time=this._readUint(32),this.timescale=this._readUint(32),this.duration=this._readUint(32));var a=this._readUint(16);this.pad=a>>15,this.language=String.fromCharCode((a>>10&31)+96,(a>>5&31)+96,(31&a)+96),this.pre_defined=this._readUint(16)},ISOBox.prototype._boxParsers.mehd=function(){this._parseFullBox(),1==this.version?this.fragment_duration=this._readUint(64):this.fragment_duration=this._readUint(32)},ISOBox.prototype._boxParsers.mfhd=function(){this._parseFullBox(),this.sequence_number=this._readUint(32)},ISOBox.prototype._boxParsers.mfro=function(){this._parseFullBox(),this.mfra_size=this._readUint(32)},ISOBox.prototype._boxParsers.mp4a=function(){this.reserved1=[this._readUint(32),this._readUint(32)],this.channelcount=this._readUint(16),this.samplesize=this._readUint(16),this.pre_defined=this._readUint(16),this.reserved2=this._readUint(16),this.sample_rate=this._readUint(32)},ISOBox.prototype._boxParsers.mvhd=function(){this._parseFullBox(),1==this.version?(this.creation_time=this._readUint(64),this.modification_time=this._readUint(64),this.timescale=this._readUint(32),this.duration=this._readUint(64)):(this.creation_time=this._readUint(32),this.modification_time=this._readUint(32),this.timescale=this._readUint(32),this.duration=this._readUint(32)),this.rate=this._readTemplate(32),this.volume=this._readTemplate(16),this.reserved1=this._readUint(16),this.reserved2=[this._readUint(32),this._readUint(32)],this.matrix=[];for(var a=0;a<9;a++)this.matrix.push(this._readTemplate(32));this.pre_defined=[];for(var a=0;a<6;a++)this.pre_defined.push(this._readUint(32));this.next_track_ID=this._readUint(32)},ISOBox.prototype._boxParsers.payl=function(){var a=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset));this.cue_text=ISOBoxer.Utils.dataViewToString(a)},ISOBox.prototype._boxParsers.sidx=function(){this._parseFullBox(),this.reference_ID=this._readUint(32),this.timescale=this._readUint(32),0==this.version?(this.earliest_presentation_time=this._readUint(32),this.first_offset=this._readUint(32)):(this.earliest_presentation_time=this._readUint(64),this.first_offset=this._readUint(64)),this.reserved=this._readUint(16),this.reference_count=this._readUint(16),this.references=[];for(var a=0;a<this.reference_count;a++){var b={},c=this._readUint(32);b.reference_type=c>>31&1,b.referenced_size=2147483647&c,b.subsegment_duration=this._readUint(32);var d=this._readUint(32);b.starts_with_SAP=d>>31&1,b.SAP_type=d>>28&7,b.SAP_delta_time=268435455&d,this.references.push(b)}},ISOBox.prototype._boxParsers.ssix=function(){this._parseFullBox(),this.subsegment_count=this._readUint(32),this.subsegments=[];for(var a=0;a<this.subsegment_count;a++){var b={};b.ranges_count=this._readUint(32),b.ranges=[];for(var c=0;c<b.ranges_count;c++){var d={};d.level=this._readUint(8),d.range_size=this._readUint(24),b.ranges.push(d)}this.subsegments.push(b)}},ISOBox.prototype._boxParsers.stsd=function(){this._parseFullBox(),this.entry_count=this._readUint(32),this.entries=[];for(var a=0;a<this.entry_count;a++)this.entries.push(ISOBox.parse(this))},ISOBox.prototype._boxParsers.tfdt=function(){this._parseFullBox(),1==this.version?this.baseMediaDecodeTime=this._readUint(64):this.baseMediaDecodeTime=this._readUint(32)},ISOBox.prototype._boxParsers.tfhd=function(){this._parseFullBox(),this.track_ID=this._readUint(32),1&this.flags&&(this.base_data_offset=this._readUint(64)),2&this.flags&&(this.sample_description_offset=this._readUint(32)),8&this.flags&&(this.default_sample_duration=this._readUint(32)),16&this.flags&&(this.default_sample_size=this._readUint(32)),32&this.flags&&(this.default_sample_flags=this._readUint(32))},ISOBox.prototype._boxParsers.tfra=function(){this._parseFullBox(),this.track_ID=this._readUint(32),this._packed=this._readUint(32),this.reserved=this._packed>>>6,this.length_size_of_traf_num=(this._packed&&0xffff00000000)>>>4,this.length_size_of_trun_num=(this._packed&&4294901760)>>>2,this.length_size_of_sample_num=this._packed&&255,this.number_of_entry=this._readUint(32),this.entries=[];for(var a=0;a<this.number_of_entry;a++){var b={};1==this.version?(b.time=this._readUint(64),b.moof_offset=this._readUint(64)):(b.time=this._readUint(32),b.moof_offset=this._readUint(32)),b.traf_number=this._readUint(8*(this.length_size_of_traf_num+1)),b.trun_number=this._readUint(8*(this.length_size_of_trun_num+1)),b.sample_number=this._readUint(8*(this.length_size_of_sample_num+1)),this.entries.push(b)}},ISOBox.prototype._boxParsers.tkhd=function(){this._parseFullBox(),1==this.version?(this.creation_time=this._readUint(64),this.modification_time=this._readUint(64),this.track_ID=this._readUint(32),this.reserved1=this._readUint(32),this.duration=this._readUint(64)):(this.creation_time=this._readUint(32),this.modification_time=this._readUint(32),this.track_ID=this._readUint(32),this.reserved1=this._readUint(32),this.duration=this._readUint(32)),this.reserved2=[this._readUint(32),this._readUint(32)],this.layer=this._readUint(16),this.alternate_group=this._readUint(16),this.volume=this._readTemplate(16),this.reserved3=this._readUint(16),this.matrix=[];for(var a=0;a<9;a++)this.matrix.push(this._readTemplate(32));this.width=this._readUint(32),this.height=this._readUint(32)},ISOBox.prototype._boxParsers.trex=function(){this._parseFullBox(),this.track_ID=this._readUint(32),this.default_sample_description_index=this._readUint(32),this.default_sample_duration=this._readUint(32),this.default_sample_size=this._readUint(32),this.default_sample_flags=this._readUint(32)},ISOBox.prototype._boxParsers.trun=function(){this._parseFullBox(),this.sample_count=this._readUint(32),1&this.flags&&(this.data_offset=this._readInt(32)),4&this.flags&&(this.first_sample_flags=this._readUint(32)),this.samples=[];for(var a=0;a<this.sample_count;a++){var b={};256&this.flags&&(b.sample_duration=this._readUint(32)),512&this.flags&&(b.sample_size=this._readUint(32)),1024&this.flags&&(b.sample_flags=this._readUint(32)),2048&this.flags&&(0==this.version?b.sample_composition_time_offset=this._readUint(32):b.sample_composition_time_offset=this._readInt(32)),this.samples.push(b)}},ISOBox.prototype._boxParsers.vlab=function(){var a=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset));this.source_label=ISOBoxer.Utils.dataViewToString(a)},ISOBox.prototype._boxParsers.vttC=function(){var a=new DataView(this._raw.buffer,this._cursor.offset,this._raw.byteLength-(this._cursor.offset-this._offset));this.config=ISOBoxer.Utils.dataViewToString(a)},ISOBox.prototype._boxParsers.vtte=function(){};

2

package.json
{
"name": "codem-isoboxer",
"version": "0.2.5",
"version": "0.2.6",
"description": "Browser-based MPEG-4 (ISOBMFF) file/box parsing.",

@@ -5,0 +5,0 @@ "keywords": [

12

src/iso_boxer.js

@@ -7,2 +7,9 @@ var ISOBoxer = {};

ISOBoxer.addBoxParser = function(type, parser) {
if (typeof type !== 'string' || typeof parser !== 'function') {
return;
}
ISOBox.prototype._boxParsers[type] = parser;
};
ISOBoxer.Utils = {};

@@ -53,4 +60,5 @@ ISOBoxer.Utils.dataViewToString = function(dataView, encoding) {

if (typeof exports !== 'undefined') {
exports.parseBuffer = ISOBoxer.parseBuffer;
exports.Utils = ISOBoxer.Utils;
exports.parseBuffer = ISOBoxer.parseBuffer;
exports.addBoxParser = ISOBoxer.addBoxParser;
exports.Utils = ISOBoxer.Utils;
}
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