HD Component capture with H.264 Encode

[mistergq]

Originally Posted by dvd_maniac

Am I right in thinking that this card will also allow SD capture, hopefully at better quality than s-video?

I don't see why not. My understanding is you are using a STB shooting the signal out at with component cable. Just like when you watch tv from your STB to your TV (not PVR device), it shoots SD out as well. With regards to quality, I think you are dependent (at least the cable box I have I am) on the stb setup of setting it to 480, 720, or 1080. I am not sure you can set individual channels.

Does anybody know the bitrates/resolutions that this card will support?
IE: recording quality settings

not yet. I think one of the biggest questions is how large are these files and how quick is videoredo going to support .h264 files.

[mikesm]

Originally Posted by dvd_maniac

Am I right in thinking that this card will also allow SD capture, hopefully at better quality than s-video?

Does anybody know the bitrates/resolutions that this card will support?
IE: recording quality settings

This was all covered in my original post. See here: http://www.avsforum.com/avs-vb/showthread.php?t=974452

[SHS]

mikesm is rigth he did covered most of in his original post at avsforum I even know what chipset it has sorry LIP SEAL hehe.

[dvd_maniac]

Just wondering how this device would determine what resolution to record a certain channel in?

Certain channels broadcast HD at certain resolutions and certain shows on the same channel I would imagine also broadcast at different resolutions.
So how will an analog device determine what resolution a particular show should be recorded at?

[Taddeusz]

Originally Posted by dvd_maniac

Just wondering how this device would determine what resolution to record a certain channel in?

Certain channels broadcast HD at certain resolutions and certain shows on the same channel I would imagine also broadcast at different resolutions.
So how will an analog device determine what resolution a particular show should be recorded at?

From what I've seen no single channel changes resolution midstream. A 720p channel is always going to be 720p and the same for a 1080i channel. As far as how it detects what resolution to record it will probably sync to the signal just like an HDTV would. How do you think the TV figures out what resolution to display? It has to be able to sync to the signal somehow.

[cat6man]

Originally Posted by Taddeusz

From what I've seen no single channel changes resolution midstream. A 720p channel is always going to be 720p and the same for a 1080i channel. As far as how it detects what resolution to record it will probably sync to the signal just like an HDTV would. How do you think the TV figures out what resolution to display? It has to be able to sync to the signal somehow.

the problem will be that most STBs output a fixed output format, say 1080i.....so it upscales any SD to that rate.

this is likely to be the bottleneck for most systems...i believe there are some STBs that have a native resolution pass-through option, so SD comes out 480i, 720p as 720p, etc, but these are the exception for most systems.

even if the hdpvr can set its recording rate to the STB, the stupid STB won't let us change the output format on the fly

[mistergq]

Originally Posted by cat6man

the problem will be that most STBs output a fixed output format, say 1080i.....so it upscales any SD to that rate.

this is likely to be the bottleneck for most systems...i believe there are some STBs that have a native resolution pass-through option, so SD comes out 480i, 720p as 720p, etc, but these are the exception for most systems.

even if the hdpvr can set its recording rate to the STB, the stupid STB won't let us change the output format on the fly

I am planning on recording at 720p since that should be about a 10 meg file per hour and will look good on my tv.

[Fonceur]

Originally Posted by cat6man

i believe there are some STBs that have a native resolution pass-through option, so SD comes out 480i, 720p as 720p, etc, but these are the exception for most systems.

Actually, I think this is the norm, though people might not know how to set it up...

[dvd_maniac]

So I should contact my Cable provider to find out what HD box I would get and then look it up to see how it handles resolution?
IE: If it up/downscales to preset resolution or sends the output natively?

[mikesm]

Originally Posted by dvd_maniac

So I should contact my Cable provider to find out what HD box I would get and then look it up to see how it handles resolution?
IE: If it up/downscales to preset resolution or sends the output natively?

Genereally, you don't get a choice. SA boxes let you do this and MOT boxes don't...

[fyodor]

Wasn't there supposed to be some regulation in place requiring the cable companies to decouple the authentication from the set top box? Couldn't one get one of these boxes commercially from the manufacturer and put a cable card inside of it? I don't remember the specifics of the regulation, so I may be mistaken.

[Fonceur]

Originally Posted by mikesm

SA boxes let you do this and MOT boxes don't...

StarChoice uses Motorola's STB (DSR 50x series) and they do have a way to output in native mode, but I guess it can depend on the model and such...

[dvd_maniac]

hmmm.

5-25Mbits/s
Maybe this card is not for me after all. Right now I record at 12Mbit/s, cut out commercials and then encode offline to H.264/AAC at about 120MB/hr for final archiving. For most TV shows I find the quality to be pretty close to original. I realize that HD would be bigger but nor really needed for me.
Plus for the files I want to archive, right now it's not very easy to cut out the commerials.
Maybe I'll skip the 1rst Generation of these products...

[autoboy]

My moto boxes allow only two modes. One for SD and the other for HD. I can have it switch to 480i for SD material, and I can set either 720p or 1080i for HD, but it will not switch HD channels to their native output. I use 480i and 1080i because my TVs are 1080p capable. 720p shows will now be scaled and interlaced by the STB, but at least I can record them.

[thomaszoo]

Originally Posted by Fonceur

Actually, I think this is the norm, though people might not know how to set it up...

I agree. I have a Mot. 62XX and a Mits RPTV (tubes) and I used the native resolution pass through to reduce burn in from the 4:3 programming. The Mits will change the on-screen position of the 4:3 video each time the TV was turned off and back on. Of course Sage is better since I have it set up to continuously (but slowly) move the image back and forth. If the STB didn't have the ability to pass the native signal, they could conceivably be responsible for burn-in on TVs susceptible to it.

[cat6man]

Originally Posted by Fonceur

Actually, I think this is the norm, though people might not know how to set it up...

hey fonceur, fancy meeting you here!

if your comment is correct, perhaps you please tell me how to do it with my MOT6200 stb?

thanks

[cat6man]

Originally Posted by Fonceur

StarChoice uses Motorola's STB (DSR 50x series) and they do have a way to output in native mode, but I guess it can depend on the model and such...

so only canadians can do it??

[cat6man]

Originally Posted by thomaszoo

I agree. I have a Mot. 62XX and a Mits RPTV (tubes) and I used the native resolution pass through to reduce burn in from the 4:3 programming. The Mits will change the on-screen position of the 4:3 video each time the TV was turned off and back on. Of course Sage is better since I have it set up to continuously (but slowly) move the image back and forth. If the STB didn't have the ability to pass the native signal, they could conceivably be responsible for burn-in on TVs susceptible to it.

for the 62xx, what is the setting for native resolution pass through......i have to admit i haven't looked at the menu or setup pages in a year or two

edit:
http://en.wikibooks.org/wiki/How_to_...rola_DVR/Setup

this says that the box can only output one selected HD rate, and nothing about native resolution passthrough.......is the website out of date?

[lobosrul]

Originally Posted by dvd_maniac

hmmm.

5-25Mbits/s
Maybe this card is not for me after all. Right now I record at 12Mbit/s, cut out commercials and then encode offline to H.264/AAC at about 120MB/hr for final archiving. For most TV shows I find the quality to be pretty close to original. I realize that HD would be bigger but nor really needed for me.
Plus for the files I want to archive, right now it's not very easy to cut out the commerials.
Maybe I'll skip the 1rst Generation of these products...

Hopefully it can go lower than this for SD digital chans. 2mbps should look perfect for SD with 1mbps doing ok.


Theres no way 120MB/hr is anything like HD quality.

[Fonceur]

Originally Posted by cat6man

if your comment is correct, perhaps you please tell me how to do it with my MOT6200 stb?

Well, here is how to do it for the Motorola DSR-50x series (satellite receiver), though from the sound of it, I suspect the cable versions might not have that little red button:

http://www.digitalhome.ca/forum/show...0&postcount=16