@GrumpyOldMan

I should imagine so, it'll be the start of a PVR for the amiga no?

Mark

_________________
IceStar Media Ltd.

this is my output:

7.Work:AmiTV> AmiTV
Found Bt878-based WinTV card 0x109e 0x36e!
Configured Bt878.
Locked OK!
Device capabilities: 3.
Device initialised OK!
Interrupt status is 0x300022f.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xa0.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xa2.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xa4.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xa6.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xa8.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xaa.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xac.
Locating EEPROM on Bt878....I2C returned 0xff.
Not found at 0xae.
Interrupt status is 0x32f.
Locating tuner on Bt878....I2C returned 0x6c.
Tuner Found at 0xc0!
Added interrupt 16 with result 1.
Interrupt status is 0x200032f.
Vendor ID is 0x0.
Setting Bt878 input.
Current Status is 0xb4.
Input device: 0x1b.
Width: 768. Height: 576.
HDelay: 0x78 VDelay: 0x16,
Program being created at 0x0x292ee80.
Created 3468 instructions.
Sent I2C command 0xc01fe28f.
I2C done! i=0x0
I2C bytes 0x1fe2 written.
Sent I2C command 0xc08e308f.
I2C done! i=0x0
I2C bytes 0x8e30 written.
Interrupt shows a FIFO overrun - dropping DWORDS.
----------------------------------------------------

But no audio. It is normal??

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@Mark

Quote:

@GrumpyOldMan I should imagine so, it'll be the start of a PVR for the amiga no?

Sort of, yes. Having used VHI Studio on A1200 (with TV card connected to Mediator) I would say it does not qualify as a PVR (Personal Video Recorder?) software - it captures video in raw (YUV) format which you then can edit and save as a MPEG. But the lenght of the capture is severely limited by the amount of RAM - VHI Studio uses it to temporarily store the raw video. So you can create short MPEG clips with it, but that's pretty much about it.

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@GrumpyOldMan

well, not much ..just my web camera

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@GrumpyOldMan

so 24 bits per pixel ?
for PAL assume 768x576 (hi res laced, full PAL frame)
gives 1296KB per interlaced frame - in PAL this is 25 per second (50 Hz for each
half of the interlace pair)
which is approx. 31.6MB per second RAW - not including audio
(which would probably make up the value to 32MB per sec. for a really good stereo sample)

so: 500MB* / 32 MB is roughly 15 seconds !!

can one not script VHI studio to record 10-15 second lumps to Hard disk, then get another process to encode to MPEG ?

or 'q'PAL: 384x288, sampling rate 25Hz gives 7.9MB/s - 60 seconds in RAM*.

assuming one can allocate 500MB of RAM ! This of course wont be necessary - but it would depend on how quickly one can dump large chunks to disk...(4GB equates to about 2 minutes at high res PAL, or 8.5 mins in 'q'PAL.)

is there any way to tell the 848/878 to churn out 384x288 frames ?
how much effort (for a G3) is it to convert raw to MPEG ?

Last edited by Agafaster on 09-Feb-2005 at 12:50 PM.

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ok, its actually XL426 in the picture but you know what I mean.

@Toaks

Quote:

Toaks wrote: @GrumpyOldMan well, not much ..just my web camera

Ok...for that VHI Studio

BTW just saw your new avatar first time...it is taken with that camera? You look like you are in great pain

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@Agafaster

And with the upcoming Virtual memory, this shouldnt be to much of a problem should it?

Mark

Last edited by Mark on 09-Feb-2005 at 12:55 PM.

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@Toaks

what Web-cam do you use ? will VHI cope with any USB one for instance ?

_________________
XH558 - the worlds last flying Vulcan.
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@Mark

Quote:
And with the upcoming Virtual memory, this shouldnt be to much of a problem should it?


Was it, that OS4 total memory space was ~4Gig total (32bit address space), RAM and virtual memory together ?? Is it possible to store fields/frames directly to hard drive ?? Most hd's can reach that ~33 MB/s or more...


Miikka

@thread

Did any BT878 users here get AmiTV running on their A1's? I failed to get any picture at all.. except for that blue screen.. and then it hangs pretty quickly..

@mlehto

Quote:

Was it, that OS4 total memory space was ~4Gig total (32bit address space), RAM and virtual memory together ?? Is it possible to store fields/frames directly to hard drive ?? Most hd's can reach that ~33 MB/s or more... Miikka

Sorry I havent the foggiest idea..

Mark

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@jahc

as mentioned earlier in this thread use the up - down arrows to change input (Tuner, FBAS,..)
and the left - right arrows to search channel with the tuner (may work).

@Spiranto

nice prog, tested it out and it generally works on my uAOne with Flyvideo2 card. The
Tuner seems to work to, but theres no analog terrestrial TV bradcasting since
last year in north germany, now just digital terestric TV, yeah). Thats why I just need the
possibility to display a FBAS video signal, in fullscreen. No audio. Sadly for
now it seems not to be possible to get a fullscreen display. Furthermore it seems
the right half of the generated picture is missing (?). The pic is too dark and
I can see single lines. Any suggestions ?

@Spirantho

Here's my log output:

amitv
AmiTV 27/01/05.
Found Bt878-based WinTV card 0x109e 0x36e!
Configured Bt878.
Locked OK!
Device capabilities: 3.
Device initialised OK!
Interrupt status is 0x200123e.
Locating EEPROM on Bt878....I2C returned 0x7f.
Tuner Found at 0xa0!
Interrupt status is 0x200133e.
Locating tuner on Bt878....I2C returned 0xff.
Not found at 0xc0.
Locating tuner on Bt878....I2C returned 0x7a.
Tuner Found at 0xc2!
Added interrupt 16 with result 1.
Interrupt status is 0x2000206.
Vendor ID is 0x0.
Setting Bt878 input.
Current Status is 0xb4.
Input device: 0x1b.
Width: 768. Height: 576.
HDelay: 0x78 VDelay: 0x16,
Program being created at 0x0x2043680.
Created 3468 instructions.
Sent I2C command 0xc21fe28f.
I2C done! i=0x0
I2C bytes 0x1fe2 written.
Sent I2C command 0xc28e308f.
I2C done! i=0x0
I2C bytes 0x8e30 written.
Interrupt shows a FIFO overrun - dropping DWORDS.


I'm using Hauppauge WinTV Go BT878 card.
PAL system as used in Luxembourg



I see a picture which is slightly shifted to the right. After some time there are isolated stripes or pixels but it's OK.

Is there any possibility to fine tune the image or move the image?

I have connected the WINTV out to my Soundlive In connector. But I don't hear any sound.

Any advice?

Edit: there is sound now after I installed Amitv fo 29 January 2005. Before I used version 27.
Right now I'm viewing some interesting docu about snakes on TerraNova Channel.

Last edited by mbilla on 16-Feb-2005 at 09:37 PM.
Last edited by mbilla on 16-Feb-2005 at 09:01 PM.

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@mbilla

Yes, thats what I mentioned. But dont you think the image is much to dark ?

@Beeblebrox

Image is dark but I'm using a TFT screen so that could be a problem too.

_________________
A computerworld without MS products and Windows!
Connect your Amigas ...
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and your PDAs and laptops ...
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Well, at least people are able to use it mostly without crashing. :)

I'm currently working on getting it into a proper app... what you're using at the moment is only a test harness. I could release a version now with audio but because of the way TV cards work the audio selection would probably only work on cards the same as mine.

Once I get it into library form I can worry about the brightness/positioning etc. It's just the crashing which I don't know if I can do anything about (though I have some ideas for workarounds....)

@Spirantho

since updating to the latest uboot, it seems amitv runs a lot better.. I have sucessfully watched tv and viewed my a500 on the composite input.... well done! I hope progress on the full version is going nicely.

@jahc

what was the composite quality like ?

This is starting to sound interesting.

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@Agafaster

Quote:

Agafaster wrote: @GrumpyOldMan how much effort (for a G3) is it to convert raw to MPEG ?

Not too much I suspect - my p200 encodes vcd quality video at 3x realtime, and a g3 800 is loads faster . . . Given a well written encoder I`m sure realtime mpeg capture is theoretically possible.
I`m interested in this thread because I want to build a stb type thingy out of a micro, I`ll need something that displays the video input fullscreen on bootup, as a pass through for the tv.

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