]> git.sur5r.net Git - minitube/blobdiff - src/video.cpp
Thumb scaling optimization
[minitube] / src / video.cpp
index e8014e1a7f172cfaedc2e729ee899564e3537df1..1e65242ca389531707ec680a974530caa2c7acbc 100644 (file)
@@ -1,6 +1,7 @@
 #include "video.h"
 #include "networkaccess.h"
 #include <QtNetwork>
+#include "videodefinition.h"
 
 namespace The {
     NetworkAccess* http();
@@ -8,138 +9,230 @@ namespace The {
 
 Video::Video() : m_duration(0),
 m_viewCount(-1),
-m_hd(false) { }
+definitionCode(0),
+elIndex(0),
+loadingStreamUrl(false)
+{ }
+
+Video* Video::clone() {
+    Video* cloneVideo = new Video();
+    cloneVideo->m_title = m_title;
+    cloneVideo->m_description = m_description;
+    cloneVideo->m_author = m_author;
+    cloneVideo->m_authorUri = m_authorUri;
+    cloneVideo->m_webpage = m_webpage;
+    cloneVideo->m_streamUrl = m_streamUrl;
+    cloneVideo->m_thumbnail = m_thumbnail;
+    cloneVideo->m_thumbnailUrl = m_thumbnailUrl;
+    cloneVideo->m_mediumThumbnailUrl = m_mediumThumbnailUrl;
+    cloneVideo->m_duration = m_duration;
+    cloneVideo->m_published = m_published;
+    cloneVideo->m_viewCount = m_viewCount;
+    cloneVideo->videoId = videoId;
+    cloneVideo->videoToken = videoToken;
+    cloneVideo->definitionCode = definitionCode;
+    return cloneVideo;
+}
+
+void Video::setWebpage(QUrl webpage) {
+    m_webpage = webpage;
+
+    // Get Video ID
+    // youtube-dl line 428
+    // QRegExp re("^((?:http://)?(?:\\w+\\.)?youtube\\.com/(?:(?:v/)|(?:(?:watch(?:\\.php)?)?\\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$");
+    QRegExp re("^https?://www\\.youtube\\.com/watch\\?v=([0-9A-Za-z_-]+).*");
+    bool match = re.exactMatch(m_webpage.toString());
+    if (!match || re.numCaptures() < 1) {
+        qDebug() << QString("Cannot get video id for %1").arg(m_webpage.toString());
+        // emit errorStreamUrl(QString("Cannot get video id for %1").arg(m_webpage.toString()));
+        // loadingStreamUrl = false;
+        return;
+    }
+    videoId = re.cap(1);
+}
 
-void Video::preloadThumbnail() {
-    if (m_thumbnailUrls.isEmpty()) return;
-    QObject *reply = The::http()->get(m_thumbnailUrls.first());
+void Video::loadThumbnail() {
+    QObject *reply = The::http()->get(m_thumbnailUrl);
     connect(reply, SIGNAL(data(QByteArray)), SLOT(setThumbnail(QByteArray)));
 }
 
 void Video::setThumbnail(QByteArray bytes) {
-    m_thumbnail = QImage::fromData(bytes);
+    m_thumbnail.loadFromData(bytes);
+    m_thumbnail = m_thumbnail.scaled(160, 90);
     emit gotThumbnail();
 }
 
-const QImage Video::thumbnail() const {
-    return m_thumbnail;
+void Video::loadMediumThumbnail() {
+    if (m_mediumThumbnailUrl.isEmpty()) return;
+    QObject *reply = The::http()->get(m_mediumThumbnailUrl);
+    connect(reply, SIGNAL(data(QByteArray)), SIGNAL(gotMediumThumbnail(QByteArray)));
 }
 
 void Video::loadStreamUrl() {
-    // if (m_streamUrl.isEmpty())
-        this->scrapeStreamUrl();
-    // else emit gotStreamUrl(m_streamUrl);
-}
-
-void Video::scrapeStreamUrl() {
+    if (loadingStreamUrl) {
+        qDebug() << "Already loading stream URL for" << this->title();
+        return;
+    }
+    loadingStreamUrl = true;
 
     // https://develop.participatoryculture.org/trac/democracy/browser/trunk/tv/portable/flashscraper.py
+    getVideoInfo();
+}
 
-    QUrl webpage = m_webpage;
-    // qDebug() << webpage.toString();
+void  Video::getVideoInfo() {
+    static const QStringList elTypes = QStringList() << "&el=embedded" << "&el=vevo" << "&el=detailpage" << "";
 
-    // Get Video ID
-    // youtube-dl line 428
-    // QRegExp re("^((?:http://)?(?:\\w+\\.)?youtube\\.com/(?:(?:v/)|(?:(?:watch(?:\\.php)?)?\\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$");
-    QRegExp re("^http://www\\.youtube\\.com/watch\\?v=([0-9A-Za-z_-]+).*");
-    bool match = re.exactMatch(webpage.toString());
-    if (!match || re.numCaptures() < 1) {
-        emit errorStreamUrl(QString("Cannot get video id for %1").arg(webpage.toString()));
+    if (elIndex > elTypes.size() - 1) {
+        loadingStreamUrl = false;
+        emit errorStreamUrl("Cannot get video info");
+        /*
+        // Don't panic! We have a plan B.
+        // get the youtube video webpage
+        qDebug() << "Scraping" << webpage().toString();
+        QObject *reply = The::http()->get(webpage().toString());
+        connect(reply, SIGNAL(data(QByteArray)), SLOT(scrapeWebPage(QByteArray)));
+        connect(reply, SIGNAL(error(QNetworkReply*)), SLOT(errorVideoInfo(QNetworkReply*)));
+        // see you in scrapWebPage(QByteArray)
+        */
         return;
     }
-    videoId = re.cap(1);
-    // if (!videoId) return false;
-    // qDebug() << videoId;
 
     // Get Video Token
-    QUrl normalizedUrl = QUrl(QString("http://www.youtube.com/get_video_info?video_id=")
-                              .append(videoId).append("&el=embedded&ps=default&eurl="));
+    QUrl videoInfoUrl = QUrl(QString(
+            "http://www.youtube.com/get_video_info?video_id=%1%2&ps=default&eurl=&gl=US&hl=en"
+            ).arg(videoId, elTypes.at(elIndex)));
 
-    QObject *reply = The::http()->get(normalizedUrl);
+    QObject *reply = The::http()->get(videoInfoUrl);
     connect(reply, SIGNAL(data(QByteArray)), SLOT(gotVideoInfo(QByteArray)));
     connect(reply, SIGNAL(error(QNetworkReply*)), SLOT(errorVideoInfo(QNetworkReply*)));
 
     // see you in gotVideoInfo...
+
 }
 
 void  Video::gotVideoInfo(QByteArray data) {
     QString videoInfo = QString::fromUtf8(data);
 
+    // qDebug() << "videoInfo" << videoInfo;
+
+    // get video token
     QRegExp re = QRegExp("^.*&token=([^&]+).*$");
     bool match = re.exactMatch(videoInfo);
-
-    // on regexp failure, stop and report error
+    // handle regexp failure
     if (!match || re.numCaptures() < 1) {
+        // Don't panic! We're gonna try another magic "el" param
+        elIndex++;
+        getVideoInfo();
+        return;
+    }
+    QString videoToken = re.cap(1);
+    while (videoToken.contains('%'))
+        videoToken = QByteArray::fromPercentEncoding(videoToken.toAscii());
+    // qDebug() << "videoToken" << videoToken;
+    this->videoToken = videoToken;
 
-        // Don't panic! We have a plan B.
-
-        // get the youtube video webpage
-        QObject *reply = The::http()->get(webpage().toString());
-        connect(reply, SIGNAL(data(QByteArray)), SLOT(scrapWebPage(QByteArray)));
-        connect(reply, SIGNAL(error(QNetworkReply*)), SLOT(errorVideoInfo(QNetworkReply*)));
+    // get fmt_url_map
+    re = QRegExp("^.*&url_encoded_fmt_stream_map=([^&]+).*$");
+    match = re.exactMatch(videoInfo);
+    // handle regexp failure
+    if (!match || re.numCaptures() < 1) {
+        // Don't panic! We're gonna try another magic "el" param
+        elIndex++;
+        getVideoInfo();
+        return;
+    }
 
-        // see you in scrapWebPage(QByteArray)
+    QString fmtUrlMap = re.cap(1);
+    fmtUrlMap = QByteArray::fromPercentEncoding(fmtUrlMap.toUtf8());
 
-        /*
-        qDebug() << videoInfo;
-        re = QRegExp("^.*&reason=([^&]+).*$");
-        match = re.exactMatch(videoInfo);
-        if (match) {
-            // report the error in the status bar
-            QMainWindow* mainWindow = dynamic_cast<QMainWindow*>(qApp->topLevelWidgets().first());
-            QString errorMessage = QUrl::fromEncoded(re.cap(1).toUtf8()).toString().replace("+", " ");
-            int indexOfTag = errorMessage.indexOf("<");
-            if (indexOfTag != -1) {
-                errorMessage = errorMessage.left(indexOfTag);
+    QSettings settings;
+    QString definitionName = settings.value("definition").toString();
+    int definitionCode = VideoDefinition::getDefinitionCode(definitionName);
+
+    // qDebug() << "fmtUrlMap" << fmtUrlMap;
+    QStringList formatUrls = fmtUrlMap.split(",", QString::SkipEmptyParts);
+    QHash<int, QString> urlMap;
+    foreach(QString formatUrl, formatUrls) {
+        // qDebug() << "formatUrl" << formatUrl;
+        QStringList urlParams = formatUrl.split("&", QString::SkipEmptyParts);
+        // qDebug() << "urlParams" << urlParams;
+
+        int format = -1;
+        QString url;
+        QString sig;
+        foreach(QString urlParam, urlParams) {
+            if (urlParam.startsWith("itag=")) {
+                int separator = urlParam.indexOf("=");
+                format = urlParam.mid(separator + 1).toInt();
+            } else if (urlParam.startsWith("url=")) {
+                int separator = urlParam.indexOf("=");
+                url = urlParam.mid(separator + 1);
+                url = QByteArray::fromPercentEncoding(url.toUtf8());
+            } else if (urlParam.startsWith("sig=")) {
+                int separator = urlParam.indexOf("=");
+                sig = urlParam.mid(separator + 1);
+                sig = QByteArray::fromPercentEncoding(sig.toUtf8());
             }
-            if (mainWindow) mainWindow->statusBar()->showMessage(errorMessage);
-            emit errorStreamUrl(errorMessage);
-
-        } else
-            emit errorStreamUrl("Error parsing video info");
-        */
-
-        return;
+        }
+        if (format == -1 || url.isNull()) continue;
+
+        url += "&signature=" + sig;
+
+        if (format == definitionCode) {
+            qDebug() << "Found format" << definitionCode;
+            QUrl videoUrl = QUrl::fromEncoded(url.toUtf8(), QUrl::StrictMode);
+            m_streamUrl = videoUrl;
+            this->definitionCode = definitionCode;
+            emit gotStreamUrl(videoUrl);
+            loadingStreamUrl = false;
+            return;
+        }
+
+        urlMap.insert(format, url);
     }
 
-    QString videoToken = re.cap(1);
-    // FIXME proper decode
-    videoToken = videoToken.replace("%3D", "=");
-    // qDebug() << "token" << videoToken;
+    QList<int> definitionCodes = VideoDefinition::getDefinitionCodes();
+    int currentIndex = definitionCodes.indexOf(definitionCode);
+    int previousIndex = 0;
+    while (currentIndex >= 0) {
+        previousIndex = currentIndex - 1;
+        if (previousIndex < 0) previousIndex = 0;
+        int definitionCode = definitionCodes.at(previousIndex);
+        if (urlMap.contains(definitionCode)) {
+            qDebug() << "Found format" << definitionCode;
+            QString url = urlMap.value(definitionCode);
+            QUrl videoUrl = QUrl::fromEncoded(url.toUtf8(), QUrl::StrictMode);
+            m_streamUrl = videoUrl;
+            this->definitionCode = definitionCode;
+            emit gotStreamUrl(videoUrl);
+            loadingStreamUrl = false;
+            return;
+        }
+        currentIndex--;
+    }
 
-    QSettings settings;
-    if (settings.value("hd").toBool())
-        findHdVideo(videoToken);
-    else
-        standardVideoUrl(videoToken);
+    emit errorStreamUrl(tr("Cannot get video stream for %1").arg(m_webpage.toString()));
 
 }
 
-void Video::standardVideoUrl(QString videoToken) {
-    QUrl videoUrl = QUrl(QString("http://www.youtube.com/get_video?video_id=")
-                         .append(videoId)
-                         .append("&t=").append(videoToken)
-                         .append("&eurl=&el=embedded&ps=default&fmt=18"));
-    m_streamUrl = videoUrl;
-    m_hd = false;
-    emit gotStreamUrl(videoUrl);
-}
+void Video::foundVideoUrl(QString videoToken, int definitionCode) {
+    // qDebug() << "foundVideoUrl" << videoToken << definitionCode;
+
+    QUrl videoUrl = QUrl(QString(
+            "http://www.youtube.com/get_video?video_id=%1&t=%2&eurl=&el=&ps=&asv=&fmt=%3"
+            ).arg(videoId, videoToken, QString::number(definitionCode)));
 
-void Video::hdVideoUrl(QString videoToken) {
-    QUrl videoUrl = QUrl(QString("http://www.youtube.com/get_video?video_id=")
-                         .append(videoId)
-                         .append("&t=").append(videoToken)
-                         .append("&eurl=&el=embedded&ps=default&fmt=22"));
     m_streamUrl = videoUrl;
-    m_hd = true;
+    loadingStreamUrl = false;
     emit gotStreamUrl(videoUrl);
 }
 
 void Video::errorVideoInfo(QNetworkReply *reply) {
+    loadingStreamUrl = false;
     emit errorStreamUrl(tr("Network error: %1 for %2").arg(reply->errorString(), reply->url().toString()));
 }
 
-void Video::scrapWebPage(QByteArray data) {
+void Video::scrapeWebPage(QByteArray data) {
 
     QString videoHTML = QString::fromUtf8(data);
     QRegExp re(".*, \"t\": \"([^\"]+)\".*");
@@ -148,46 +241,91 @@ void Video::scrapWebPage(QByteArray data) {
     // on regexp failure, stop and report error
     if (!match || re.numCaptures() < 1) {
         emit errorStreamUrl("Error parsing video page");
+        loadingStreamUrl = false;
         return;
     }
 
     QString videoToken = re.cap(1);
     // FIXME proper decode
     videoToken = videoToken.replace("%3D", "=");
+
+    // we'll need this in gotHeadHeaders()
+    this->videoToken = videoToken;
+
     // qDebug() << "token" << videoToken;
 
     QSettings settings;
-    if (settings.value("hd").toBool())
-        findHdVideo(videoToken);
-    else
-        standardVideoUrl(videoToken);
+    QString definitionName = settings.value("definition").toString();
+    int definitionCode = VideoDefinition::getDefinitionCode(definitionName);
+    if (definitionCode == 18) {
+        // This is assumed always available
+        foundVideoUrl(videoToken, 18);
+    } else {
+        findVideoUrl(definitionCode);
+    }
 
 }
 
-void Video::findHdVideo(QString videoToken) {
+void Video::gotHeadHeaders(QNetworkReply* reply) {
+    int statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    // qDebug() << "gotHeaders" << statusCode;
+    if (statusCode == 200) {
+        foundVideoUrl(videoToken, definitionCode);
+    } else {
 
-    // we'll need this in gotHeaders()
-    this->videoToken = videoToken;
+        // try next (lower quality) definition
+        /*
+        QStringList definitionNames = VideoDefinition::getDefinitionNames();
+        int currentIndex = definitionNames.indexOf(currentDefinition);
+        int previousIndex = 0;
+        if (currentIndex > 0) {
+            previousIndex = currentIndex - 1;
+        }
+        if (previousIndex > 0) {
+            QString nextDefinitionName = definitionNames.at(previousIndex);
+            findVideoUrl(nextDefinitionName);
+        } else {
+            foundVideoUrl(videoToken, 18);
+        }*/
+
+
+        QList<int> definitionCodes = VideoDefinition::getDefinitionCodes();
+        int currentIndex = definitionCodes.indexOf(definitionCode);
+        int previousIndex = 0;
+        if (currentIndex > 0) {
+            previousIndex = currentIndex - 1;
+            int definitionCode = definitionCodes.at(previousIndex);
+            if (definitionCode == 18) {
+                // This is assumed always available
+                foundVideoUrl(videoToken, 18);
+            } else {
+                findVideoUrl(definitionCode);
+            }
 
-    // try HD: fmt=22
-    QUrl videoUrl = QUrl(QString("http://www.youtube.com/get_video?video_id=")
-                         .append(videoId)
-                         .append("&t=").append(videoToken)
-                         .append("&eurl=&el=embedded&ps=default&fmt=22"));
+        } else {
+            foundVideoUrl(videoToken, 18);
+        }
+
+    }
+}
+
+void Video::findVideoUrl(int definitionCode) {
+    this->definitionCode = definitionCode;
+
+    QUrl videoUrl = QUrl(QString(
+            "http://www.youtube.com/get_video?video_id=%1&t=%2&eurl=&el=&ps=&asv=&fmt=%3"
+            ).arg(videoId, videoToken, QString::number(definitionCode)));
 
     QObject *reply = The::http()->head(videoUrl);
-    connect(reply, SIGNAL(finished(QNetworkReply*)), SLOT(gotHdHeaders(QNetworkReply*)));
+    connect(reply, SIGNAL(finished(QNetworkReply*)), SLOT(gotHeadHeaders(QNetworkReply*)));
     // connect(reply, SIGNAL(error(QNetworkReply*)), SLOT(errorVideoInfo(QNetworkReply*)));
 
-    // see you in gotHeaders()
+    // see you in gotHeadHeaders()
+
 }
 
-void Video::gotHdHeaders(QNetworkReply* reply) {
-    int statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
-    // qDebug() << "gotHeaders" << statusCode;
-    if (statusCode == 200) {
-        hdVideoUrl(videoToken);
-    } else {
-        standardVideoUrl(videoToken);
-    }
+
+QString Video::formattedDuration() const {
+    QString format = m_duration > 3600 ? "h:mm:ss" : "m:ss";
+    return QTime().addSecs(m_duration).toString(format);
 }