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在我當前的項目中C++/Qt,我正在試圖製作一個文件服務器來流式傳輸視頻。我可以將視頻從應用流式傳輸到Chrome,但我無法將其流式傳輸給其他玩家(例如VLC)。我試過其他圖書館,他們工作,但我的工作不起作用。 我想這是頭問題。這裏是頭 -視頻可以在Chrome上流式傳輸,但不能在其他播放器中播放。
HTTP/1.0 200 OK\r\n
Content-Length: VIDEO-SIZE\r\n
Content-Type: video/mp4\r\n\r\n
我也有部分視頻支持(使用尋求功能),這裏是它的頭 -
HTTP/1.0 200 OK\r\n
Content-Length: VIDEO-SIZE\r\n
Content-Type: video/mp4\r\n
Content-Range: bytes RANGE/VIDEO-SIZE\r\n\r\n
我開發的應用程序在C++中使用Qt網絡庫和代碼非常簡單。基本上它是發送上述標題,然後是視頻。 CPP的代碼如下(不完全是一個不錯的代碼,只是一個基本草案)
QTcpSocket *clientConnection = server->nextPendingConnection();
connect(clientConnection, SIGNAL(disconnected()),
clientConnection, SLOT(deleteLater()));
clientConnection->waitForReadyRead();
QMap<QString, QString> requestMap;
while (!clientConnection->atEnd()) {
QString line(clientConnection->readLine());
qDebug()<<line;
if (line.indexOf(":") <= 0 || line.isEmpty())
continue;
line.replace("\r\n", "");
QString key(line.left(line.indexOf(":"))),
value(line.mid(line.indexOf(":") + 2, line.length()));
requestMap.insert(key, value);
qDebug() << "KEY: " << key << " VALUE: " << value << "\n";
}
img->open(QFile::ReadOnly);
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_5_8);
QString header, imgsize(QString::number(img->size()));
if(requestMap.contains("Range")){
QString range = requestMap["Range"];
range = range.mid(6, range.length()); // 'bytes=' is 6 chars
qint64 seek = range.left(range.indexOf("-")).toInt();
if (range.endsWith("-"))
range.append(QString::number(img->size() - 1));
header = "HTTP/1.0 206 PARTIAL CONTENT\r\n"
"Content-Length: "+imgsize+"\r\n"
"Content-Range: bytes "+range+"/"+imgsize + "\r\n"
"Content-Type: "+db.mimeTypeForFile(fileinfo).name()+"\r\n\r\n";
img->seek(seek);
} else header = "HTTP/1.0 200 OK\r\n"
"Content-Length: "+imgsize+"\r\n"
"Content-Type: "+db.mimeTypeForFile(fileinfo).name()+"\r\n\r\n";
out << header.toLatin1();
clientConnection->write(block);
clientConnection->waitForBytesWritten();
block.resize(65536);
while(!img->atEnd())
{
qint64 read = img->read(block.data(), 65536);
clientConnection->write(block, read);
}
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