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Posted by Little Red Hen on 12/16/06 05:48
>>>>>>> Max Haltermann wrote:
>>>>>>>
>>>>>>>> When I make a DVD from a Winfast2000H DTVcapture card
>>>>>>>> the playback from a stand alone DVD player to a 68cm 4:3 TV is
>>>>>>>> about 20%
>>>>>>>> smaller than the TV's screen. [i.e., there
>>>>>>>> all black borders on all sides of the picture]
>>>>>>>
>>>>>>> How does the original captured signal look on a computer? Does it
>>>>>>> already
>>>>>>> have the black bars there? (Is the original signal in 12P16 format?)
>>>>>>> Yes.
>>>>>>
>>>>>> Thanks for the pointer re aspect ratio terms.
>>>>>> As I wrote in my first posting, the transmitted signal of all local
>>>>>> DTV
>>>>>> stations has 4:3 images embedded in a 16:9 transmission. Format 12P16
>>>>>>
>>>>>> VideoRedo File info says 16:9 and image 720:576 (normal PAL format).
>>>>>>
>>>>>> This makes sense for the DTV stations, as this way they provide both
>>>>>> main
>>>>>> aspect ratios for the end user. The end user selects 4:3 or 16:9 on
>>>>>> the set top
>>>>>> box this, as I see it, sets the correct parameters for the DIGITAL TO
>>>>>> ANALOG DECODER.
>>>>>> In other words, the analog image in the right format and dimensions
>>>>>> for display on a TV screen is created outside the digital
>>>>>> environment.
>>>>>>
>>>>>> So the question still is: How can one get a full hight and full width
>>>>>> 4:3 display from
>>>>>> the raw digital TV transmissions on to DVD or onto a TV screen,
>>>>>> seeing there is no D/A conversion or decoding involved?
>>>>>>
>>>>>> Max.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> See here for an explanation of the formats and their names:
>>>>>>> <http://google.com/groups?selm=a96fma$kj6$1@news6.svr.pol.co.uk>
>>>>>>>
>>>>>>> --
>>>>>>> znark
>>>>>>>
>>>>> Max I assume you have a 4:3 TV or Monitor? Either way in making a DVD
>>>>> you need to change the flag in the ifo files to tell the DVD player to
>>>>> present a full screen presentation during playback. If the ifo file
>>>>> has letterbox ticked as well as pan an scan you will get the so-called
>>>>> postage stamp view., ie black all around the 4:3 image. My friend has
>>>>> the same card as you and I have the Dvico HDTV card and my Topfield
>>>>> PVR5000. Al I do is edit the captured file and then make a DVD (to
>>>>> harddisk) then edit the ifo files and then burn using Nero. As I said
>>>>> in my other post it takes all of 20 seconds to make the edit in
>>>>> IFOEdit. Then all my DVD's ex Oz DTV that are 4:3 aspect ratio
>>>>> playback full screen on my 4:3 TV with no black borders and full
>>>>> vertical screen with black bars either side on my 16:9 LCD. Just like
>>>>> a bought one!!!!!
>>>> That would be beaut if it worked in my case!!!
>>>> I got IFOEdit, ran it fiddled with it, said duhh a few times, (I'm 72
>>>> and battling a bit
>>>> with HiTec). Anyway eventually I found the lines of text in the IFOedit
>>>> display, which, when clicked on, produced this window in which the
>>>> settings can be altered.
>>>> After some drama I got those files to look as below:
>>>>
>>>> 1) VIDEO_TS.IFO file:
>>>>
>>>> Video Manager Menu attributes:
>>>> video: MPEG-2 720x576 (PAL) (PAL 625/50) (4:3) (pan-scan)
>>>> Title set 1:
>>>> VTS_1 Video: MPEG-2 720x576 (PAL) (PAL 625/50) (4:3) (pan-scan)
>>>>
>>>>
>>>> 1) VTS_01_0.IFO file:
>>>>
>>>> Title set (Movie) attributes:
>>>> Video: MPEG-2 720x576 (PAL) (PAL 625/50) (4:3) (pan-scan)
>>>>
>>>> Only thing wrong with this is, that the movie even on the pc monitor
>>>> still does not
>>>> reach edge to edge, instead it has a thick black border all around.
>>>> I don't like to give up but?????????
>>>>
>>>> Max.
>>>>
>>>
>>> Something is not right there Max, the frame size should be 16:9 as
>>> Australian DTV for ALL transmissions are 16:9 regardless of content.,
>>> the stations don't transmit aspect ratio flags.
>>> So if 4:3 is ticked instead of 16:9 in IFOEdit that is probably the
>>> cause of the problem unless there is something you may have selected in
>>> your editing program to edit the mpeg file off the TV card.
>>>
>>> Take another look in IFOEdit and change any instances of 4:3 to 16:9
>>> (doesn't matter for the menu attributes) but make sure the video info is
>>> PAL and 16:9.
>>>
>>> What pan and scan in the ifo file is to tell the DVD player to expand
>>> the image to fit the 4:3 TV you have so what this means in effect the
>>> side black bars 'fall off the screen' and you have a fullscreen 4:3
>>> image.
>>> On the Topfield 5000 there is a button that is called centre cut that
>>> does the same thing on live transmissions as indeed most STB's.
>>>
>>> an example from a SBS Doco, actual film 4:3
>>>
>>> Video: MPEG-2 720x576 (PAL) (PAL 625/50) (16:9) (pan-scan)
>>
>> This had to be it! Well maybe, but not quite.
>> Getting into IFOEdit once more I got it to display exactly as per your
>> sample above.
>> The monitor screen image still looked wrong though. So I burned to
>> RW-DVD and tested on the player and TV.
>>
>> Set to 16:9 the image was just as before: black border all four sides.
>> Image in correct proportion.
>> 4:3 and 4:3 letterbox image is far too wide but with top and bottom
>> having thick black bar.
>>
>> Just to ensure my test dvd file isn't corrupted I will capture a new lot,
>> SBS2 is mostly 4:3 transmission, and go through all again.
>> Wish me luck, please.
>>
>> Max.
>> P.S. Any possibility of a conventional handle like Bob or Pete or Max?
>>
> Ewen will do just fine
Is this the model you have?
http://www.leadtek.com.tw/eng/tv_tuner/overview.asp?lineid=6&pronameid=252
Are you sure you are recording from the digital tuner and not the analog
tuner?
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