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vdr-plugin-streamdev
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Compatiblity to Network Media Tank (#496) 

- minor fixes of PAT repacker
- repack and send every PAT packet we receive
This commit is contained in:
schmirl 2008-11-24 12:10:27 +00:00
parent 459e41e810
commit cd8d7fbd6c
3 changed files with 22 additions and 11 deletions
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4
CONTRIBUTORS
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@ -29,6 +29,7 @@ Rolf Ahrenberg
for fixing output format of some debug messages
for replacing private members by cThread::Running()/Active()
for improving externremux script termination
for fixing PAT repacker version field
Rantanen Teemu
for providing vdr-incompletesections.diff
@ -97,3 +98,6 @@ Anssi Hannula
wirbel
for pointing out that section filtering is optional for VDR devices
Jori Hamalainen
for extensive testing while making stream compatible to Network Media Tank

2
HISTORY
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@ -1,6 +1,8 @@
VDR Plugin 'streamdev' Revision History
---------------------------------------
- minor fixes of PAT repacker
- repack and send every PAT packet we receive
- fixed null pointer in server.c when cConnection::Accept() failes
- consider Pids from channels.conf when HTTP TS streaming. Section filtering
is an optional feature for VDR devices, so we must not rely on the PMT

27
server/livestreamer.c
View File

@ -211,7 +211,7 @@ int cStreamdevPatFilter::GetPid(SI::PMT::Stream& stream)
void cStreamdevPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
{
if (Pid == 0x00) {
if (Tid == 0x00 && !pmtPid) {
if (Tid == 0x00) {
SI::PAT pat(Data, false);
if (!pat.CheckCRCAndParse())
return;
@ -220,6 +220,7 @@ void cStreamdevPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, i
if (!assoc.isNITPid()) {
const cChannel *Channel = Channels.GetByServiceID(Source(), Transponder(), assoc.getServiceId());
if (Channel && (Channel == m_Channel)) {
int prevPmtPid = pmtPid;
if (0 != (pmtPid = assoc.getPid())) {
Dprintf("cStreamdevPatFilter: PMT pid for channel %s: %d\n", Channel->Name(), pmtPid);
pmtSid = assoc.getServiceId();
@ -233,25 +234,27 @@ void cStreamdevPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, i
int ts_id;
unsigned int crc, i, len;
uint8_t *tmp, tspat_buf[TS_SIZE];
static uint8_t ccounter = 0;
ccounter = (ccounter + 1) % 16;
memset(tspat_buf, 0xff, TS_SIZE);
memset(tspat_buf, 0x0, 4 + 12 + 5); // TS_HDR_LEN + PAT_TABLE_LEN + 5
ts_id = Channel->Tid(); // Get transport stream id of the channel
tspat_buf[0] = TS_SYNC_BYTE; // Transport packet header sunchronization byte (1000011 = 0x47h)
tspat_buf[1] = 0x40; // Set payload unit start indicator bit
tspat_buf[2] = 0x0; // PID
tspat_buf[3] = 0x10; // Set payload flag to indicate precence of payload data
tspat_buf[4] = 0x0; // PSI
tspat_buf[3] = 0x10 | ccounter; // Set payload flag, Continuity counter
tspat_buf[4] = 0x0; // SI pointer field
tspat_buf[5] = 0x0; // PAT table id
tspat_buf[6] = 0xb0; // Section syntax indicator bit and reserved bits set
tspat_buf[7] = 12 + 1; // Section length (12 bit): PAT_TABLE_LEN + 1
tspat_buf[8] = (ts_id >> 8) & 0xff; // Transport stream ID (bits 8-15)
tspat_buf[8] = (ts_id >> 8); // Transport stream ID (bits 8-15)
tspat_buf[9] = (ts_id & 0xff); // Transport stream ID (bits 0-7)
tspat_buf[10] = 0x01; // Version number 0, Current next indicator bit set
tspat_buf[10] = 0xc0 | ((pat.getVersionNumber() << 1) & 0x3e) |
pat.getCurrentNextIndicator();// Version number, Current next indicator
tspat_buf[11] = 0x0; // Section number
tspat_buf[12] = 0x0; // Last section number
tspat_buf[13] = (pmtSid >> 8) & 0xff; // Program number (bits 8-15)
tspat_buf[13] = (pmtSid >> 8); // Program number (bits 8-15)
tspat_buf[14] = (pmtSid & 0xff); // Program number (bits 0-7)
tspat_buf[15] = (pmtPid >> 8) & 0xff; // Network ID (bits 8-12)
tspat_buf[15] = 0xe0 | (pmtPid >> 8); // Network ID (bits 8-12)
tspat_buf[16] = (pmtPid & 0xff); // Network ID (bits 0-7)
crc = 0xffffffff;
len = 12; // PAT_TABLE_LEN
@ -269,9 +272,11 @@ void cStreamdevPatFilter::Process(u_short Pid, u_char Tid, const u_char *Data, i
#endif
} else
isyslog("cStreamdevPatFilter: PAT size %d too large to fit in one TS", Length);
m_Streamer->SetPids(pmtPid);
Add(pmtPid, 0x02);
pmtVersion = -1;
if (pmtPid != prevPmtPid) {
m_Streamer->SetPids(pmtPid);
Add(pmtPid, 0x02);
pmtVersion = -1;
}
return;
}
}