在玩黑莓JDE的InputStream视频 [英] Playing an InputStream video in Blackberry JDE
问题描述
我觉得我用正确的InputStream与黑莓9000模拟器：
I think I'm using InputStream incorrectly with a Blackberry 9000 simulator:
我发现了一些样品code，
I found some sample code,
<一个href=\"http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/1089414/How%5FTo%5F-%5FPlay%5Fvideo%5Fwithin%5Fa%5FBlackBerry%5Fsmartphone%5Fapplication.html?nodeid=1383173&vernum=0\" rel=\"nofollow\">http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/1089414/How%5FTo%5F-%5FPlay%5Fvideo%5Fwithin%5Fa%5FBlackBerry%5Fsmartphone%5Fapplication.html?nodeid=1383173&vernum=0
这允许您从黑莓应用程序内播放视频。在code声称，它可以处理HTTP，但它采取了一些fandangling得到它实际上接近这样做的：
that lets you play video from within a Blackberry App. The code claims it can handle HTTP, but it's taken some fandangling to get it to actually approach doing so:
具体地说，我做的：
StreamConnection s = null;
s = (StreamConnection)Connector.open("http://10.252.9.15/eggs.3gp");
HttpConnection c = (HttpConnection)s;
InputStream i = c.openInputStream();
System.out.println("~~~~~I have a connection?~~~~~~" + c);
System.out.println("~~~~~I have a URL?~~~~" + c.getURL());
System.out.println("~~~~~I have a type?~~~~" + c.getType());
System.out.println("~~~~~I have a status?~~~~~~" + c.getResponseCode());
System.out.println("~~~~~I have a stream?~~~~~~" + i);
player = Manager.createPlayer(i, c.getType());
我发现，这是我可以从HttpConnection的一个InputStream而不会导致的唯一途径：JUM错误104：未捕获空指针异常。 （即，铸造作为的StreamConnection，然后作为一个HttpConnection的崩溃停止它）。
I've found that this is the only way I can get an InputStream from an HTTPConnection without causing a: "JUM Error 104: Uncaught NullPointer Exception". (That is, the casting as a StreamConnection, and THEN as an HttpConnection stops it from crashing).
不过，我仍然没有流视频。之前，流无法创建（它将与空指针异常崩溃）。现在，甲流正在取得，调试器声称它开始时，从它的视频流...并没有任何反应。没有视频播放。
However, I'm still not streaming video. Before, a stream wasn't able to be created (it would crash with the null pointer exception). Now, a stream is being made, the debugger claims it's begining to stream video from it...and nothing happens. No video plays.
该应用程序也不会冻结或崩溃或任何东西。我可以'暂停'和'玩'自由，并获得相应的调试消息两者。但没有视频显示出来。
The app doesn't freeze, or crash or anything. I can 'pause' and 'play' freely, and get appropriate debug messages for both. But no video shows up.
如果我打的黑莓本地存储的视频，一切都很好（它实际上播放视频），所以我知道播放器本身工作正常，我米只是，如果可能我有什么不对我的疑惑流？
If I'm playing a video stored locally on the blackberry, everything is fine (it actually plays the video), so I know the Player itself is working fine, I"m just wondering if maybe I have something wrong with my stream?
的API表示，玩家可以在一个InputStream。有需要的特定类型的？我如何可以查询知道我的InputStream的，如果它是有效的？它现有的进一步比我以前得到。
The API says the player can take in an InputStream. Is there a specific kind it needs? How can I query my inputstream to know if it's valid? It existing is further than I've gotten before.
-Jenny
编辑：我在一个黑莓大胆模拟器（9000）。我听说手机的一些版本不通过HTTP视频流，然而，大胆做。我还没有看到这样的例子虽然。当我去到互联网，点黑莓可播放的视频，它试图流，然后问我在物理上下载的文件（再一次，我下载正常播放）。
I'm on a Blackberry Bold simulator (9000). I've heard that some versions of phones do NOT stream video via HTTP, however, the Bold does. I have yet to see examples of this though. When I go to the internet and point at a blackberry playable video, it attempts to stream, and then asks me to physically download the file (and then plays fine once I download).
编辑：另外，我有一个物理黑莓Bold，为好，但它不能既流（我去了m.youtube.com，只得到一个未找到服务器/内容错误）。是不是有什么特别的，我需要做的RTSP流内容？
Also, I have a physical blackberry Bold, as well, but it can't stream either (I've gone to m.youtube.com, only to get a server/content not found error). Is there something special I need to do to stream RTSP content?
推荐答案
所以，很长一段时间后，我已经确定，黑莓Bold 9000没有做HTTP流。我最后不得不（或相当雷不必的同事）写渐进式下载来模拟它的自定义方法。哦，好。
So, after a very long time I have determined that the Blackberry Bold 9000 does NOT do http streaming. I ended up having to (or rather a coworker of mine having to) write custom methods for progressive download to simulate it. Oh, well.
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