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Add error handling to getSeekableBlob #515

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Add error handling to getSeekableBlob #515

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ee6f47a
Merge pull request #1 from muaz-khan/master
orthatg May 9, 2019
3c4fa31
Added error handling for getSeekableBlob
orthatg May 9, 2019
fa5128a
Match formatting style: tabs to spaces
orthatg May 9, 2019
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33 changes: 22 additions & 11 deletions RecordRTC.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1881,6 +1881,7 @@ function setSrcObject(stream, element) {
/**
* @param {Blob} file - File or Blob object.
* @param {function} callback - Callback function.
* @returns {Blob} seekableFile - New seekable File or Blob; returns null if error occurred
* @example
* getSeekableBlob(blob or file, callback);
* @see {@link https://github.com/muaz-khan/RecordRTC|RecordRTC Source Code}
Expand All @@ -1897,18 +1898,28 @@ function getSeekableBlob(inputBlob, callback) {

var fileReader = new FileReader();
fileReader.onload = function(e) {
var ebmlElms = decoder.decode(this.result);
ebmlElms.forEach(function(element) {
reader.read(element);
});
reader.stop();
var refinedMetadataBuf = tools.makeMetadataSeekable(reader.metadatas, reader.duration, reader.cues);
var body = this.result.slice(reader.metadataSize);
var newBlob = new Blob([refinedMetadataBuf, body], {
type: 'video/webm'
});
try {
var ebmlElms = decoder.decode(this.result);
ebmlElms.forEach(function(element) {
reader.read(element);
});
reader.stop();
var refinedMetadataBuf = tools.makeMetadataSeekable(reader.metadatas, reader.duration, reader.cues);
var body = this.result.slice(reader.metadataSize);
var newBlob = new Blob([refinedMetadataBuf, body], {
type: 'video/webm'
});

callback(newBlob);
callback(newBlob);
}
catch (error) {
console.error("Could not decode file to make it seekable", {error});
callback(null);
}
};
fileReader.onerror = function(error) {
console.error("An error occurred attempting to load file", {error});
callback(null);
};
fileReader.readAsArrayBuffer(inputBlob);
}
Expand Down