frodovdr/vdr-plugin-iptv
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RTP protocol fixes.

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This commit is contained in:
Rolf Ahrenberg 2007-09-27 22:30:50 +00:00
parent e55c90b4c8
commit 24833fcf15
3 changed files with 17 additions and 11 deletions
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10
config.c
View File

@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: config.c,v 1.5 2007/09/26 19:49:35 rahrenbe Exp $
* $Id: config.c,v 1.6 2007/09/27 22:30:50 rahrenbe Exp $
*/
#include "common.h"
@ -12,11 +12,11 @@
cIptvConfig IptvConfig;
cIptvConfig::cIptvConfig(void)
: tsBufferSize(8),
: tsBufferSize(2),
tsBufferPrefillRatio(0),
udpBufferSize(7),
rtpBufferSize(7),
httpBufferSize(7),
udpBufferSize(20),
rtpBufferSize(20),
httpBufferSize(20),
fileBufferSize(20),
maxBufferSize(40) // must be bigger than protocol buffer sizes!
{

14
protocolrtp.c
View File

@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: protocolrtp.c,v 1.2 2007/09/26 22:07:45 rahrenbe Exp $
* $Id: protocolrtp.c,v 1.3 2007/09/27 22:30:50 rahrenbe Exp $
*/
#include <sys/types.h>
@ -176,11 +176,17 @@ int cIptvProtocolRtp::Read(unsigned char* *BufferAddr)
// Read data from socket
int len = recvfrom(socketDesc, readBuffer, (TS_SIZE * IptvConfig.GetRtpBufferSize()),
MSG_DONTWAIT, (struct sockaddr *)&sockAddr, &addrlen);
if (len > 0) {
if (len > 3) {
// http://www.networksorcery.com/enp/rfc/rfc2250.txt
const int headerlen = 4 * sizeof(uint32_t);
unsigned int v = (readBuffer[0] >> 6) & 0x03;
unsigned int x = (readBuffer[0] >> 4) & 0x01;
unsigned int cc = readBuffer[0] & 0x0F;
unsigned int pt = readBuffer[1] & 0x7F;
unsigned int headerlen = (3 + cc) * sizeof(uint32_t);
if (x)
headerlen += ((((readBuffer[headerlen + 2] & 0xFF) << 8) | (readBuffer[headerlen + 3] & 0xFF)) + 1) * sizeof(uint32_t);
// Check if payload type is MPEG2 TS and payload contains multiple of TS packet data
if (((readBuffer[1] & 0x7F) == 33) && (((len - headerlen) % TS_SIZE) == 0)) {
if ((v == 2) && (pt == 33) && (((len - headerlen) % TS_SIZE) == 0)) {
// Set argument point to payload in read buffer
*BufferAddr = &readBuffer[headerlen];
return (len - headerlen);

4
setup.c
View File

@ -3,7 +3,7 @@
*
* See the README file for copyright information and how to reach the author.
*
* $Id: setup.c,v 1.9 2007/09/26 19:49:35 rahrenbe Exp $
* $Id: setup.c,v 1.10 2007/09/27 22:30:50 rahrenbe Exp $
*/
#include <string.h>
@ -483,7 +483,7 @@ void cIptvPluginSetup::Store(void)
IptvConfig.SetTsBufferSize(tsBufferSize);
IptvConfig.SetTsBufferPrefillRatio(tsBufferPrefill);
IptvConfig.SetUdpBufferSize(udpBufferSize);
IptvConfig.SetUdpBufferSize(rtpBufferSize);
IptvConfig.SetRtpBufferSize(rtpBufferSize);
IptvConfig.SetHttpBufferSize(httpBufferSize);
IptvConfig.SetFileBufferSize(fileBufferSize);
}