Re: Roku-tech Digest, Vol 7, Issue 27
Dave Dodge <[email protected]>
| Newsgroups | gmane.comp.hardware.roku.technical |
|---|---|
| Message-ID | <20040530023801.GF6903@basmati> |
On Tue, May 25, 2004 at 06:13:33AM -0700, Travis Clayton wrote:
> >Also, 169time is intended for use with DVHS recorder, so I'd think
> >that it would have to emit an MPEG2 transport stream to be useful
> >there. But perhaps 169time is doing some processing up-front that
> >leaves the stream just "good enough" for the typical DVHS machine but
> >not the HD1000.
>
> That's what I was getting at. The 169 AVX piece is probably creating an
> MPEG2 transport stream and it is probably just not perfect.
>From a quick look at BJ's samples, the files definitely have just
minimal information in them. There's a small PAT and PMT, and the
rest is data (well, along with lots and lots and lots of null packets).
For example:
PAT table - ver=0x0 items=1 ts_stream_id=0x3ea
0 prog=0x 1 pid=0x 10
PMT table - sect_len=0x1d prog #=0x1 ver=0x0 last_sect=0x0 \
tbl_len=0x20 PRC_PID=0x11
len_left=0xa descr_len=0x6
Tag=0x5 (registration_descr), Len=0x4 0x47 0x41 0x39 0x34
stream_type =0x2 PID =0x11
stream_type =0x81 PID =0x14
PID=0x0, ctrl_type=PAT, pkt_cnt=915
PID=0x10, ctrl_type=PMT, pkt_cnt=785
PID=0x11, ctrl_type=VIDEO, pkt_cnt=489919
PID=0x14, ctrl_type=AUDIO_AC3, pkt_cnt=15574
PID=0x1fff, ctrl_type=NULL, pkt_cnt=206756
-Dave Dodge