[mythtv-users] Scaling HD output
I have a HD tube TV (Sanyo HT32744) which is 1080i native but supports 720p via upconversion. Attached to it I have my Myth computer with a FX5200 outputting to DVI, and then connecting to my TV via a HDMI adapter. Now, in my area ABC and Fox are 720P. I have a 1280x720 modeline that works perfectly and allows me to watch the recorded shows in full glory. There's no problem there. My problem is with 1080i broadcasts. I can't get a 1920x1080i/1920x540 modeline to work to save my life, as I get a picture with too much flashing and artifacts. So, I've decided while not ideal, in order to get a working picture I'd like to be able to have Myth scale 1080i content to a 1280x720 output. It seems like this should be possible, but I can't get it to work. All it does is output the 1080i signal sans scaling, which chops off a third or so of the image to the right. Is there any way to have Myth scale down 1080i output? Or is this something that is not possible. If it is possible, how do I go about enabling it? Also, I have been having problems triggering the automatic resolution switching for 1080i broadcasts. It doesn't seem to work, as if the file is not being recognized as 1920x1080, which is the size I have set in the config. Viewing the verbose mythfrontend output, I see a few references to 1920x1088 while playing the file. Where are the other 8 pixels coming from, and is this possibly why the resolution switching is failing? If I open the file in mplayer or xine it reports as 1920x1080. Thanks, Seth ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] Nvidia drivers and 1920x1080i?
Is 1920x1080 known to work with any Nvidia drivers over DVI? I've tried driver version 7676 with a FX5200 card and all I can get is a very messed-up screen. I tried both interlaced and progressive with the same results. If anybody has a modeline that works, I'd appreciate it. Also, if this doesn't work, and I'm forced to use 960x540, Myth should scale down the 1080i stream to 540p, correct? Because that's not happening for me now, although I haven't looked much into it. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Air2PC/Airstar HD-5000 channel setup and Myth
On 9/24/05, Erik Pettersen <[EMAIL PROTECTED]> wrote: > After I basically did it the hard/painful manual way... I found > Christiaan Lutzers excellent little utility... > > http://www.ece.ualberta.ca/~lutzer/dvb/ > > found via this discussion > > http://www.gossamer-threads.com/lists/mythtv/users/136823 > > It scan through all the pids and stuff and when it found a valid one > (I believe) it would record a 30 second sample. IIRC it was pretty > easy to figure out from there ;) > > I usually just SD vs HD by size of the file... *shrug* > I was able to pin down the HD channels and can watch them via azap/mplayer. Since Comcast doesn't seem to report PSIP data (except for one channel), I spent most of tonight figuring it out. This is what I came up with: channum / channel / freqid / mplexid / serviceid 803 / WSBDT / 111025000 / 23 / 3 804 / WAGADT / 63300 / 18 / 21 806 / WXIADT / 69900 / 31 / 3 807 / WTBSDT / 111025000 / 23 / 10 809 / WGCLDT / 69900 / 31 / 10 813 / WATLDT / 65700 / 26 / 2 I just used the default channel numbers that Zap2It gave me, and I made a new channel lineup of just those 6 channels. I already have a PVR 250 setup, and I assume the two can coexist. I added the above information to the mythconverg database from information I found from other threads on this list. However, I can't do anything in Myth such as live TV with DVB. If I try, this is the backend log: [EMAIL PROTECTED] ~]$ mythbackend 2005-09-25 02:21:21.956 New DB connection, total: 1 Starting up as the master server. 2005-09-25 02:21:21.966 New DB connection, total: 2 2005-09-25 02:21:21.970 DVB#0 DVB SI Table Parser Started 2005-09-25 02:21:21.970 DVB#0 Using DVB card 0, with frontend LG Electronics LGDT3303 VSB/QAM Frontend. 2005-09-25 02:21:21.972 New DB connection, total: 3 2005-09-25 02:21:21.973 DVB#0 WARNING - Symbol Rate setting (0) is out of range (min/max:10762000/10762000) 2005-09-25 02:21:21.974 DVB#0 DVB signal 0 | snr 0 | ber0 | unc 2005-09-25 02:21:22.280 DVB#0 Status: LOCK. 2005-09-25 02:21:22.281 DVB#0 Multiplex Locked 2005-09-25 02:21:31.854 DVB#0 ERROR - Reading Section. (75) Value too large for defined data type 2005-09-25 02:21:46.377 DVB#0 Timeout Getting PMT 2005-09-25 02:21:46.377 DVB#0 ERROR - Tuning for channel #806 failed. 2005-09-25 02:21:46.880 New DB scheduler connection 2005-09-25 02:21:46.891 mythbackend version: 0.18.1.20050523-1 www.mythtv.org 2005-09-25 02:21:46.891 Enabled verbose msgs : important general 2005-09-25 02:21:48.885 Reschedule requested for id -1. 2005-09-25 02:21:49.112 Scheduled 71 items in 0.2 = 0.09 match + 0.14 place 2005-09-25 02:21:49.113 Seem to be woken up by USER 2005-09-25 02:21:53.787 MainServer::HandleAnnounce Playback 2005-09-25 02:21:53.787 adding: mythbox.heckard.com as a client (events: 0) 2005-09-25 02:21:53.819 MainServer::HandleAnnounce Playback 2005-09-25 02:21:53.819 adding: mythbox.heckard.com as a client (events: 1) 2005-09-25 02:21:53.837 MainServer::HandleAnnounce Playback 2005-09-25 02:21:53.837 adding: mythbox.heckard.com as a client (events: 0) 2005-09-25 02:21:53.868 MainServer::HandleAnnounce Playback 2005-09-25 02:21:53.868 adding: mythbox.heckard.com as a client (events: 0) 2005-09-25 02:21:53.884 adding: mythbox.heckard.com as a remote ringbuffer 2005-09-25 02:21:53.904 Changing from None to WatchingLiveTV 2005-09-25 02:21:53.948 Can't enable VBI recording vbi: Invalid argument 2005-09-25 02:21:56.888 New DB connection, total: 4 2005-09-25 02:21:59.023 Changing from WatchingLiveTV to None 2005-09-25 02:21:59.455 MainServer::HandleAnnounce Playback 2005-09-25 02:21:59.455 adding: mythbox.heckard.com as a client (events: 0) 2005-09-25 02:21:59.487 MainServer::HandleAnnounce Playback 2005-09-25 02:21:59.487 adding: mythbox.heckard.com as a client (events: 0) 2005-09-25 02:21:59.503 adding: mythbox.heckard.com as a remote ringbuffer 2005-09-25 02:21:59.527 Changing from None to WatchingLiveTV 2005-09-25 02:21:59.540 DVB#0 Recorder: Card opened successfully (using PS mode). 2005-09-25 02:21:59.540 DVB#0 ERROR - No PIDS set, please correct your channel setup. 2005-09-25 02:22:00.544 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:01.549 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:02.550 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:03.555 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:04.560 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:05.564 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:06.569 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:07.574 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:08.579 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:09.584 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:10.589 DVB#0 WARNING - No data from card in 1 second. 2005-09-25 02:22:11.594 DVB#0 WARNING - No data from card in 1 second. 2005-09-25
[mythtv-users] Air2PC/Airstar HD-5000 channel setup and Myth
I received my HD-5000 card the other day and got it working with little problem thanks to the guide on http://www.hd5000.com/. By working, I mean that the drivers load and I can azap channels and occasionally watch them in mplayer. I am using QAM256 and Comcast cable. My problem is that I get too many channels via cable. I can tune about 200 or so channels, but most are encrypted. The majority of standard and basic cable channels are simulcast in digital and are not encrypted, and I receive the networks in HD (2 720p and 2 1080i). Now, I used the channel scan in the mythtv-setup program which seems to lock on to a lot of channels, but only gives me WXIA-SD and WXIA-DT (the NBC affiliate in Atlanta). I have not really looked into it but I assume it is because that channel is the only one with PSIP info? Anyway, I can't tune this channel in Myth anyway so the point is moot (will worry about that later). My question then becomes, is there any easier way to do this rather than scan the channels one by one and manually add the ones I care about? Eventually I'd like to have all the SD channels added into Myth but for now HD only ones will do. It's going to be awful time-consuming going through 200-some channels and picking out the 4 HD ones. Am I basically screwed because of my presumed lack of PSIP info? My TV has a QAM tuner as well, and I know the channel numbers of the HD channels if that in any way helps. Is there a list of channel numbers in relationship to their frequencies or is that fluid? Has anyone in the Atlanta area attempted this? Thanks for any help. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Slowest processor for software HDTV decoding
On 4/27/05, Joe Barnhart <[EMAIL PROTECTED]> wrote: > I think you also have to specify the final output size. I get the > impression that 1280x720p output is easier than 1920x1080i. Note, the > SOURCE material could be in either format, but the size of the DISPLAY > resolution is what I'm talking about here (i.e. the "modeline" you're > using). Ideally it would be at the native resolution (my TV has HDMI in so a 720p or 1080i resolution would be preferable, although 720p would be upconverted on the TV), but I haven't had any luck with 1080i modelines with the nvidia drivers. > I use a 1080i modeline and I could not use an Athlon XP 2800 and get > satisfactory output. I had to go to a 3GHz P4 with hyperthreading to > get the headroom you speak of. (Recently I discovered that 512M wasn't > enough, either. I have two HD-3000 cards, and comm flagging was killing > me at 512M.) Interesting. I had pretty much ruled out an Athlon XP, although I would prefer to go that route if it could work as well. I can't ever see myself getting dual HDTV cards though, I barely use the dual tuners I have now simultaneously. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] Slowest processor for software HDTV decoding
I know there has been a lot of discussions here lately about HDTV decoding and processor speeds and such, however I get the feeling that the recommended 3GHz P4 spec is a little overkill. Basically, I am asking for the slowest (and theroretically cheapest) processor that can decode all HD formats, and ideally have headroom left over for things like commercial flagging and deinterlacing if required. I could care less about P4 vs. Celeron vs. AMD64 as long as it gets the job done. For the sake of argument, assume that a Nvidia FX 5200 will be used with DVI output and no XvMC. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] nVidia card
On Thu, 2005-03-31 at 09:58 -0800, Alan Hagge wrote: > Morten, > > Depends a lot on your primary use. I don't think many 5500 (and higher) > cards are passively cooled, so they'll probably be louder than a > passively-cooled 5200. If all you want to do is (HD)TV playback, the > 5200 seems to be a great choice (based on others' comments). If you > want to do more, then a 5500 (or better) might be the ticket. > > For example: > > For ME, I wanted a QUIET card (for MythTV watching), but one with enough > power to run recent games well. I wound up going with an MSI GeForce > 6600GT/AGP model NX6600GT-VTD128 > (http://www.newegg.com/app/ViewProductDesc.asp?description=14-127-150&depa=0). > > I CAN vouch for the quietness (it's completely swamped by my case/PS > fans), but I don't yet have MythTV fully operational, so I can't comment > on the speed/capabilities. I don't play a lot of commercial games, but > it's great for Racer (http://www.racer.nl/). > > Personally, I'd DEFINITELY stick to nVidia cards under Linux, at least > for now. From other posts, ATI is still a ways behind on their Linux > drivers. Is there any difference between a 5200 and a 6200 or a 6600 for pure Myth HDTV use? I don't care about games, simply MPEG-2 decoding. Some 6200s/6600s have component out dongles. Do any 5200s do? I have seen stuff that suggests that they can with the proper dongle. Does anybody even use it? Especially since some cards are rumored to have MPEG-2 decoding on the chip, I'd hate to buy the wrong one if the drivers would support it one day. -- Seth Heckard / [EMAIL PROTECTED] ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] Where to (really) buy an Air2PC -or- should I get a HD-3000?
I've had a Air2PC on backorder from cyberestore for a while now, and just checked on the status to see that it's delayed until May or June. Not only that, but it will use a new chipset that probably won't be supported initially. Other than cyberestore and the mythtv store listed on froogle, is there anywhere to actually get these cards? A lot of people on this list seem to have them, yet nowhere on the internet seems to have them in stock. I guess I just missed the boat on this one. There's a guy selling some Air2PC cards on ebay for cheap, but he says it's an older version that doesn't work with Linux. I've finally convinced myself to blow a wad of cash on a new mythtv box with enough oomph for HDTV, yet the lack of a capture card hurts. All I care about is QAM decoding. I don't do anything OTA, nor will I since I live in an apartment and can't put up a gargantuan antenna. Plus, my cable company is nice enough to provide me with unencrypted local channels in HD, so why make things more complicated? I have read that the Air2PC card is "better" in the QAM department. If I get impatient and go for a HD-3000, would I be missing anything? Also, would either of these cards be able to capture non-HD digital cable, assuming it's unencrypted QAM? -- Seth Heckard / [EMAIL PROTECTED] ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
