我需要流式传输视频并在网页中持续播放.我正在使用Nanohttpd库在我的Android应用程序中运行服务器.我可以在页面加载时流式传输和播放视频.视频完成播放后,我无法再播放视频.每次我需要刷新页面才能播放视频.尝试第二次玩时出现以下错误.
java.net.socketException: sendto Failed: EPIPE (broken pipe)
at libcore.io.IoBridge.maybeThrowAfterSendto(IoBridge.java:546)
at libcore.io.IoBridge.sendto(IoBridge.java:515)
at java.net.PlainSocketImpl.write(PlainSocketImpl.java:504)
at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:37)
at java.net.PlainSocketImpl$PlainSocketoutputStream.write(PlainSocketImpl.java:266)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBody(NanoHTTPD.java:1386)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectEncoding(NanoHTTPD.java:1359)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectTransferAndEncoding(NanoHTTPD.java:1349)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.send(NanoHTTPD.java:1335)
at server.http.android.androidhttpserver.server.NanoHTTPD$HTTPSession.execute(NanoHTTPD.java:769)
at server.http.android.androidhttpserver.server.NanoHTTPD$ClientHandler.run(NanoHTTPD.java:186)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: sendto Failed: EPIPE (broken pipe)
at libcore.io.Posix.sendtoBytes(Native Method)
at libcore.io.Posix.sendto(Posix.java:176)
at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:278)
at libcore.io.IoBridge.sendto(IoBridge.java:513)
at java.net.PlainSocketImpl.write(PlainSocketImpl.java:504)
at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:37)
at java.net.PlainSocketImpl$PlainSocketoutputStream.write(PlainSocketImpl.java:266)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBody(NanoHTTPD.java:1386)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectEncoding(NanoHTTPD.java:1359)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectTransferAndEncoding(NanoHTTPD.java:1349)
at server.http.android.androidhttpserver.server.NanoHTTPD$Response.send(NanoHTTPD.java:1335)
at server.http.android.androidhttpserver.server.NanoHTTPD$HTTPSession.execute(NanoHTTPD.java:769)
at server.http.android.androidhttpserver.server.NanoHTTPD$ClientHandler.run(NanoHTTPD.java:186)
at java.lang.Thread.run(Thread.java:818)
我发送的回复如下.
@Override
public Response serve(IHTTPSession session) {
FileInputStream fis = null;
File file = new File("/storage/emulated/0/DCIM/Camera/VIDEO.mp4");
try{
if(file.exists())
{
fis = new FileInputStream(file);
}
else
Log.d("FOF :","File Not exists:");
}catch (FileNotFoundException e)
{
e.printstacktrace();
}
return new NanoHTTPD.Response(Response.Status.OK,"video/mp4",fis,file.length() );
}
用于访问视频的HTML文件是
utoplay loop>
最佳答案
我成功地使用以下代码：
@Override
public Response serve(IHTTPSession session) {
Mapgetmethod();
String uri = session.getUri();
MaparatorChar,'/');
if (uri.indexOf('?') >= 0) {
uri = uri.substring(0,uri.indexOf('?'));
}
File f = new File(uri);
return serveFile(uri,header,f);
}
private Response serveFile(String uri,Mapculate etag
String etag = Integer.toHexString((file.getAbsolutePath() +
file.lastModified() + "" + file.length()).hashCode());
// Support (simple) skipping:
long startFrom = 0;
long endAt = -1;
String range = header.get("range");
if (range != null) {
if (range.startsWith("bytes=")) {
range = range.substring("bytes=".length());
int minus = range.indexOf('-');
try {
if (minus > 0) {
startFrom = Long.parseLong(range.substring(0,minus));
endAt = Long.parseLong(range.substring(minus + 1));
}
} catch (NumberFormatException ignored) {
}
}
}
// Change return code and add Content-Range header when skipping is requested
long fileLen = file.length();
if (range != null && startFrom >= 0) {
if (startFrom >= fileLen) {
res = createResponse(Response.Status.RANGE_NOT_SATISFIABLE,"");
res.addHeader("Content-Range","bytes 0-0/" + fileLen);
res.addHeader("ETag",etag);
} else {
if (endAt < 0) {
endAt = fileLen - 1;
}
long newLen = endAt - startFrom + 1;
if (newLen < 0) {
newLen = 0;
}
final long dataLen = newLen;
FileInputStream fis = new FileInputStream(file) {
@Override
public int available() throws IOException {
return (int) dataLen;
}
};
fis.skip(startFrom);
res = createResponse(Response.Status.PARTIAL_CONTENT,mime,fis);
res.addHeader("Content-Length","" + dataLen);
res.addHeader("Content-Range","bytes " + startFrom + "-" +
endAt + "/" + fileLen);
res.addHeader("ETag",etag);
}
} else {
if (etag.equals(header.get("if-none-match")))
res = createResponse(Response.Status.NOT_MODIFIED,"");
else {
res = createResponse(Response.Status.OK,new FileInputStream(file));
res.addHeader("Content-Length","" + fileLen);
res.addHeader("ETag",etag);
}
}
} catch (IOException ioe) {
res = getResponse("Forbidden: Reading file Failed");
}
return (res == null) ? getResponse("Error 404: File not found") : res;
}
// Announce that the file server accepts partial content requests
private Response createResponse(Response.Status status,String mimeType,InputStream message) {
Response res = new Response(status,mimeType,message);
res.addHeader("Accept-Ranges","bytes");
return res;
}
// Announce that the file server accepts partial content requests
private Response createResponse(Response.Status status,String message) {
Response res = new Response(status,"bytes");
return res;
}
private Response getResponse(String message) {
return createResponse(Response.Status.OK,"text/plain",message);
}
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