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Bug 802465 - Limit resolution of youtube streams in YoutubeProtocolHandler r=fabrice

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This commit is contained in:
Edwin Flores 2012-10-19 14:11:36 +13:00
parent 18527f9e0b
commit c336c77898
1 changed files with 14 additions and 7 deletions
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21
b2g/components/YoutubeProtocolHandler.js
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@ -75,13 +75,19 @@ YoutubeProtocolHandler.prototype = {
let uri;
let mimeType;
// Recognized mime types, ordered from the less usable to the most usable.
let recognizedTypes = ["video/webm"];
// itag is an undocumented value which maps to resolution and mimetype
// see https://en.wikipedia.org/wiki/YouTube#Quality_and_codecs
// Ordered from least to most preferred
let recognizedItags = [
"17", // 144p 3GP
"36", // 240p 3GP
"43", // 360p WebM
#ifdef MOZ_WIDGET_GONK
recognizedTypes.push("video/mp4");
"18", // 360p H.264
#endif
];
let bestType = -1;
let bestItag = -1;
let extras = { }
@ -89,13 +95,14 @@ YoutubeProtocolHandler.prototype = {
let params = extractParameters(aStream);
let url = params["url"];
let type = params["type"] ? params["type"].split(";")[0] : null;
let itag = params["itag"];
let index;
if (url && type && ((index = recognizedTypes.indexOf(type)) != -1) &&
index > bestType) {
if (url && type && ((index = recognizedItags.indexOf(itag)) != -1) &&
index > bestItag) {
uri = url + '&signature=' + (params["sig"] ? params['sig'] : '');
mimeType = type;
bestType = index;
bestItag = index;
}
for (let param in params) {
if (["thumbnail_url", "length_seconds", "title"].indexOf(param) != -1) {