source: smplayer/trunk/src/youtube/retrieveyoutubeurl.cpp@ 124

Last change on this file since 124 was 124, checked in by Silvan Scherrer, 13 years ago

SMPlayer: 0.7.1 trunk update
File size: 5.2 KB
Line 
1/* smplayer, GUI front-end for mplayer.
2 Copyright (C) 2006-2012 Ricardo Villalba <rvm@users.sourceforge.net>
3 Copyright (C) 2010 Ori Rejwan
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18*/
19
20#include "retrieveyoutubeurl.h"
21#include <QUrl>
22
23RetrieveYoutubeUrl::RetrieveYoutubeUrl( QObject* parent ) : SimpleHttp(parent)
24{
25 connect(this, SIGNAL(downloadFinished(QByteArray)),
26 this, SLOT(parse(QByteArray)));
27
28 preferred_quality = FLV_360p;
29
30 setUserAgent("Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)");
31}
32
33RetrieveYoutubeUrl::~RetrieveYoutubeUrl() {
34}
35
36void RetrieveYoutubeUrl::fetchPage(const QString & url) {
37 download(url);
38 orig_url = url;
39}
40
41void RetrieveYoutubeUrl::parse(QByteArray text) {
42 qDebug("RetrieveYoutubeUrl::parse");
43
44 urlMap.clear();
45
46 QString replyString = QString::fromUtf8(text.constData(), text.size());
47
48 QRegExp rx_title(".*<title>(.*)</title>.*");
49 if (rx_title.indexIn(replyString) != -1) {
50 url_title = rx_title.cap(1).simplified();
51 url_title = QString(url_title).replace("&amp;","&").replace("&gt;", ">").replace("&lt;", "<").replace("&quot;","\"").replace("&#39;","'")/*.replace(" - YouTube", "")*/;
52 qDebug("RetrieveYoutubeUrl::parse: title '%s'", url_title.toUtf8().constData());
53 } else {
54 url_title = "Youtube video";
55 }
56
57 QRegExp regex("\\\"url_encoded_fmt_stream_map\\\"\\s*:\\s*\\\"([^\\\"]*)");
58 regex.indexIn(replyString);
59 QString fmtArray = regex.cap(1);
60 fmtArray = sanitizeForUnicodePoint(fmtArray);
61 fmtArray.replace(QRegExp("\\\\(.)"), "\\1");
62 htmlDecode(fmtArray);
63 QStringList codeList = fmtArray.split(',');
64 QStringList::iterator stIt = codeList.begin();
65 foreach(QString code, codeList)
66 {
67 code.remove(0, 4);
68 QUrl url(code);
69 urlMap[url.queryItemValue("itag").toInt()] = code.remove(QRegExp("&itag=\\d+$"));
70 }
71
72 qDebug("RetrieveYoutubeUrl::parse: url count: %d", urlMap.count());
73
74 QString p_url = findPreferredUrl();
75 if (!p_url.isNull()) {
76 emit gotUrls(urlMap);
77 emit gotPreferredUrl(p_url);
78 } else {
79 emit gotEmptyList();
80 }
81}
82
83QString RetrieveYoutubeUrl::findPreferredUrl() {
84 latest_preferred_url = findPreferredUrl(urlMap, preferred_quality);
85 return latest_preferred_url;
86}
87
88QString RetrieveYoutubeUrl::findPreferredUrl(const QMap<int, QString>& urlMap, Quality q) {
89 // Choose a url according to preferred quality
90 QString p_url;
91 //Quality q = preferred_quality;
92
93 if (q==MP4_1080p) {
94 p_url = urlMap.value(MP4_1080p, QString());
95 if (p_url.isNull()) p_url= urlMap.value(WEBM_1080p, QString());
96 if (p_url.isNull()) q = MP4_720p;
97 }
98
99 if (q==WEBM_1080p) {
100 p_url = urlMap.value(WEBM_1080p, QString());
101 if (p_url.isNull()) p_url= urlMap.value(MP4_1080p, QString());
102 if (p_url.isNull()) q = WEBM_720p;
103 }
104
105 if (q==MP4_720p) {
106 p_url = urlMap.value(MP4_720p, QString());
107 if (p_url.isNull()) p_url= urlMap.value(WEBM_720p, QString());
108 if (p_url.isNull()) p_url = urlMap.value(WEBM_480p, QString());
109 if (p_url.isNull()) q = MP4_360p;
110 }
111
112 if (q==WEBM_720p) {
113 p_url = urlMap.value(WEBM_720p, QString());
114 if (p_url.isNull()) p_url= urlMap.value(MP4_720p, QString());
115 if (p_url.isNull()) q = WEBM_480p;
116 }
117
118 if (q==WEBM_480p) {
119 p_url = urlMap.value(WEBM_480p, QString());
120 if (p_url.isNull()) q = WEBM_360p;
121 }
122
123 if (q==MP4_360p) {
124 p_url = urlMap.value(MP4_360p, QString());
125 if (p_url.isNull()) p_url= urlMap.value(WEBM_360p, QString());
126 if (p_url.isNull()) q = FLV_360p;
127 }
128
129 if (q==WEBM_360p) {
130 p_url = urlMap.value(WEBM_360p, QString());
131 if (p_url.isNull()) p_url= urlMap.value(MP4_360p, QString());
132 if (p_url.isNull()) q = FLV_360p;
133 }
134
135 // FLV, low priority
136 if (q==FLV_480p) {
137 p_url = urlMap.value(FLV_480p, QString());
138 if (p_url.isNull()) q = FLV_360p;
139 }
140
141 if (q==FLV_360p) {
142 p_url = urlMap.value(FLV_360p, QString());
143 if (p_url.isNull()) q = FLV_240p;
144 }
145
146 if (q==FLV_240p) {
147 p_url = urlMap.value(q, QString());
148 }
149
150 return p_url;
151}
152
153QString RetrieveYoutubeUrl::sanitizeForUnicodePoint(QString string)
154{
155 QRegExp rx("\\\\u(\\d{4})");
156 while (rx.indexIn(string) != -1) {
157 string.replace(rx.cap(0), QString(QChar(rx.cap(1).toInt(0,16))));
158 }
159 return string;
160}
161
162void RetrieveYoutubeUrl::htmlDecode(QString& string)
163{
164 string.replace("%3A", ":", Qt::CaseInsensitive);
165 string.replace("%2F", "/", Qt::CaseInsensitive);
166 string.replace("%3F", "?", Qt::CaseInsensitive);
167 string.replace("%3D", "=", Qt::CaseInsensitive);
168 string.replace("%25", "%", Qt::CaseInsensitive);
169 string.replace("%26", "&", Qt::CaseInsensitive);
170 string.replace("%3D", "=", Qt::CaseInsensitive);
171}
172
173#include "moc_retrieveyoutubeurl.cpp"
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