On 07/30/09 01:05, Rob Davis wrote:
> Stile wrote:
>> On Tue, Jun 23, 2009 at 12:43 PM, Rob Davis<[email protected]> 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
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