Klaus Schmidinger wrote:
On 02.08.2009 19:22, Alex Lasnier wrote:
Klaus Schmidinger wrote:
On 07/30/09 01:05, Rob Davis wrote:
Stile wrote:
On Tue, Jun 23, 2009 at 12:43 PM, Rob Davis<rob@xxxxxxxxxxxxxxxxx>
wrote:
Alex Lasnier wrote:
Rob Davis wrote:
I have it normally connected to Comcast cable which should pipe
through
a bunch of FTV channels using QAM256. These I can see and hear in
kaffeine with AC97 audio. However, in VDR it appears to change the
pids
automatically so that the audio stops working. If I manually change
VDR
to not auto update and put the APID in then it squeeks rather than
works. However, streaming to mplayer using streamdev seems to work.
(It
does the same this with OTA channels too - although I can only get 4
with a portable antenna.)
ATSC uses only AC-3 audio, so the Apid should be 0 and the Dpid
needs to
be set appropriately. Since the sound squeaks, whatever value you
have
set for the Apid should be the Dpid.
For example,
WIFR-Wx:495000:M256:C:0:1984:0;Dpid:0:0:2:0:0:0
Perfect... Thanks
Is there a way to keep auto update on, but stop Comcast from sending
wrong pids? It keeps settings all audio options to 0 and some vpids
too?
The streamtype for those AC3 PIDs is 0x81. Adding this to pat.c will
add the digital PIDs correctly.
--- pat.c~ 2009-06-22 12:28:08.000000000 -0400
+++ pat.c 2009-06-22 13:32:48.461538560 -0400
@@ -432,6 +432,9 @@
}
}
break;
+ case 0x81: // AC3 DPIDs
+ Dpids[NumDpids++] = stream.getPid();
+ break;
//default: printf("PID: %5d %5d %2d %3d %3d\n",
pmt.getServiceId(), stream.getPid(), stream.getStreamType(),
pmt.getVersionNumber(), Channel->Number());//XXX
}
for (SI::Loop::Iterator it; (d =
(SI::CaDescriptor*)stream.streamDescriptors.getNext(it,
SI::CaDescriptorTag)); ) {
Perfect. I wonder if this could go in the atscepg patch?
Can you try if this also works if you insert the line
case 0x81: // AC3 DPIDs
after the line
//XXX case 8: // STREAMTYPE_13818_DSMCC
instead? I'm asking because I'd like to see whether there are
also language descriptors available...
Klaus
Yes, language descriptors are present. However, ATSC also uses 0x81 as
the AC3 descriptor tag. So we need another
case 0x81:
after
case SI::AC3DescriptorTag:
In case this is still current, can you please send me a (tested) patch?
Klaus
Sure, please see the attached patch.
diff -ur vdr-1.7.10.orig/dvbdevice.c vdr-1.7.10/dvbdevice.c
--- vdr-1.7.10.orig/dvbdevice.c 2009-06-06 07:17:20.000000000 -0400
+++ vdr-1.7.10/dvbdevice.c 2009-11-22 13:26:57.000000000 -0500
@@ -319,6 +319,16 @@
tuneTimeout = DVBT_TUNE_TIMEOUT;
lockTimeout = DVBT_LOCK_TIMEOUT;
}
+ else if (frontendType == SYS_ATSC) {
+ // ATSC
+ SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
+ SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
+ SETCMD(DTV_INVERSION, channel.Inversion());
+ SETCMD(DTV_MODULATION, channel.Modulation());
+
+ tuneTimeout = DVBT_TUNE_TIMEOUT;
+ lockTimeout = DVBT_LOCK_TIMEOUT;
+ }
else {
esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
return false;
@@ -904,7 +914,7 @@
return type == cSource::stNone
|| type == cSource::stCable && (frontendType == SYS_DVBC_ANNEX_AC || frontendType == SYS_DVBC_ANNEX_B)
|| type == cSource::stSat && (frontendType == SYS_DVBS || frontendType == SYS_DVBS2)
- || type == cSource::stTerr && (frontendType == SYS_DVBT);
+ || type == cSource::stTerr && (frontendType == SYS_DVBT || frontendType == SYS_ATSC);
}
bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const
diff -ur vdr-1.7.10.orig/pat.c vdr-1.7.10/pat.c
--- vdr-1.7.10.orig/pat.c 2009-08-16 11:01:03.000000000 -0400
+++ vdr-1.7.10/pat.c 2009-11-22 13:31:37.000000000 -0500
@@ -389,6 +389,7 @@
break;
case 5: // STREAMTYPE_13818_PRIVATE
case 6: // STREAMTYPE_13818_PES_PRIVATE
+ case 0x81: // ATSC AC-3
//XXX case 8: // STREAMTYPE_13818_DSMCC
{
int dpid = 0;
@@ -397,6 +398,7 @@
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
switch (d->getDescriptorTag()) {
case SI::AC3DescriptorTag:
+ case 0x81: // ATSC AC-3 descriptor tag
dpid = esPid;
break;
case SI::SubtitlingDescriptorTag:
diff -ur vdr-1.7.10.orig/remux.c vdr-1.7.10/remux.c
--- vdr-1.7.10.orig/remux.c 2009-11-22 06:23:27.000000000 -0500
+++ vdr-1.7.10/remux.c 2009-11-22 13:31:28.000000000 -0500
@@ -532,6 +532,7 @@
}
break;
case 0x06: // STREAMTYPE_13818_PES_PRIVATE
+ case 0x81: // ATSC AC-3
{
int dpid = 0;
char lang[MAXLANGCODE1] = "";
@@ -539,6 +540,7 @@
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
switch (d->getDescriptorTag()) {
case SI::AC3DescriptorTag:
+ case 0x81: // ATSC AC-3 descriptor tag
dbgpatpmt(" AC3");
dpid = stream.getPid();
break;
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