myhd-develop — Discussion for TL880 driver development

[MyHD-develop] Notice of appearance in Court #00331721

[District C. <don...@as...>]

Notice to Appear,

You have to appear in the Court on the March 26.
Please, do not forget to bring all the documents related to the case.
Note: The case will be heard by the judge in your absence if you do not come.

The Court Notice is attached to this email.

Kind regards,
Donald Rosen,
Court Secretary.

[MyHD-develop] A/V connector pinouts

[Michael G. <mic...@cy...>]

Greetings,

Does anyone have the pinouts for the A/V connector for the Hauppauge
WinTV-HD or any of the MyHD cards?  I don't have a 'pod' or external
A/V I/O cable for any of the cards to trace and I also need to resolve
some issues mentioned in some web forums regarding driver operation
in absence of the cable being connected (either VGA loop-through or
external A/V connections).

Thanks,

Michael

[MyHD-develop] usb reciever/alternate lircd config

[James M. M. <mac...@tu...>]

I found that the config file for the myhd usb receiver did not work for
me, though the application did. The following config file produced
output from lircd and irw

I did the following as root
myhd_usb -key=1&
lircd  -H udp -d 8765 NEC.conf.conf
irw

-- 
James M. MacLaren <mac...@tu...>
Tulane University

Re: [MyHD-develop] status of the linux driver

[Maclaren, J. M <mac...@tu...>]

Dear Mike
Thanks for your prompt reply. I will probably spend some time reading and testing what you have done so far. I appreciate your offer to pitch in.  I can't really even ask any intelligent questions right now as I need to study the code some though I am sure I will have some!  I would really like to be able to get the mpeg decoder working I am less worried about capture as I have an assortment of hd capture cards.  I picked up a mini itx computer on ebay and it came with a mdp-120.  The whole lot was ~$80.
James
-------------------------------------




-----Original Message-----
From: Mike Bourgeous [mailto:i_a...@ho...]
Sent: Sun 6/22/2008 3:06 PM
To: myh...@li...; Maclaren, James M 
Subject: RE: [MyHD-develop] status of the linux driver
 

I've been so busy with things that I haven't worked on the driver in a long time.
When I left off I was working on a better spy tool for Windows using MFC that could
intercept I2C traffic.  I was trying to use MFC because I didn't want to depend on .net.
I'm used to developing GUIs with more advanced toolkits like Swing and Qt.  MFC is the
most backward and convoluted thing I've ever seen, and I gave up :).  A good starting
point to pick back up would be to finish the Windows tool, or port the existing Linux code
to the DVB API so that it can interface with the existing drivers for the tuner and demod.

All of the HD content I have now is in one of the MPEG-4 formats, so that's another
reason I haven't put much time into this lately.  At any rate, if you or anyone wants to help
with development, then I'll jump back in.

Mike Bourgeous


> From: mac...@tu...
> To: myh...@li...
> Date: Sun, 22 Jun 2008 12:01:27 -0500
> Subject: [MyHD-develop] status of the linux driver
>
> I noticed there has not been much sourceforge activity on the myhd linux
> driver. I acquired one from ebay and am interested in getting it
> working under linux at least for hd playback. Are there any active
> developers who could use help?
> Thanks
> James
> --
> James M. MacLaren 
> Tulane University
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
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Re: [MyHD-develop] status of the linux driver

[Mike B. <i_a...@ho...>]

I've been so busy with things that I haven't worked on the driver in a long time.
When I left off I was working on a better spy tool for Windows using MFC that could
intercept I2C traffic.  I was trying to use MFC because I didn't want to depend on .net.
I'm used to developing GUIs with more advanced toolkits like Swing and Qt.  MFC is the
most backward and convoluted thing I've ever seen, and I gave up :).  A good starting
point to pick back up would be to finish the Windows tool, or port the existing Linux code
to the DVB API so that it can interface with the existing drivers for the tuner and demod.

All of the HD content I have now is in one of the MPEG-4 formats, so that's another
reason I haven't put much time into this lately.  At any rate, if you or anyone wants to help
with development, then I'll jump back in.

Mike Bourgeous


> From: mac...@tu...
> To: myh...@li...
> Date: Sun, 22 Jun 2008 12:01:27 -0500
> Subject: [MyHD-develop] status of the linux driver
>
> I noticed there has not been much sourceforge activity on the myhd linux
> driver. I acquired one from ebay and am interested in getting it
> working under linux at least for hd playback. Are there any active
> developers who could use help?
> Thanks
> James
> --
> James M. MacLaren 
> Tulane University
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://sourceforge.net/services/buy/index.php
> _______________________________________________
> MyHD-develop mailing list
> MyH...@li...
> https://lists.sourceforge.net/lists/listinfo/myhd-develop

_________________________________________________________________
The other season of giving begins 6/24/08. Check out the i’m Talkathon.
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[MyHD-develop] status of the linux driver

[James M. M. <mac...@tu...>]

I noticed there has not been much sourceforge activity on the myhd linux
driver.  I acquired one from ebay and am interested in getting it
working under linux at least for hd playback.  Are there any active
developers who could use help?
Thanks
James
-- 
James M. MacLaren <mac...@tu...>
Tulane University

[MyHD-develop] Is this XP MCE Hi-Def PVR system using MDP-130?

[Marchant, S. <Ste...@co...>]

Hi everyone,
I was browseing around and saw this supposedly "new" Hi-Def Media Center =
(XP-MCE) solution which supposedly is using a "HiDef MPEG2 HDTV PC Tuner =
/ Decoder Card" which has specs of "TeraLogic Janus Decoder" and =
"Nxt2002 HDTV Receiver/Demodulator"

http://www.dvsgroup.com/Products/Systems/Hi_Definition_HD_Systems/

So, anyone think that this is just a MDP-130 stuffed into a HTPC =
enclosure? Sure, not that interesting right, but how is it working with =
Windwos MCE?

This quoted from their page:

	*** PCI HDTV Tuner/Decoder Card Specification ***
	How do you improve the most successful HDTV card? This new card is =
smaller, runs cooler, and best of all, offers an upgrade path to DVI =
with the optional daughter card, ideal for use with today's latest DVI =
based HDTV and LCD/Plasma displays. This new hardware development =
coupled with the latest software improvements such as on-screen display =
for easy use of remote without having to switch back to your PC desktop, =
D-VHS tape player integration for recording and dual RF inputs both =
capable of HDTV tuning, the card is the most mature of all HDTV cards =
available on the market today!

I tried googling and looking in avsforum but cant find anymore info on =
this system.

Anyone want to buy one to find out?

Just something to salivate over :)

Stephen Marchant - Hardware Engineer
_________________________________
COGNEX Corp
http://www.cognex.com
Phone: 508-650-3258
Fax: 508-650-3335

Re: [MyHD-develop] New MyHD USB infrared receiver lirc driver

[Marchant, S. <Ste...@co...>]

Hi Mike, I wanted to clarify (and add to) the information I sent below.

The MyHD USB IR receiver operates in "Interrupt Transfer" mode, which =
means that to get data from it, you initiate (via the host) an =
"interrupt" transfer, rather than the more common "bulk" transfer. This =
is not a system interrupt, but more like a polling method for transfers. =
I don't know if the device could be "configured" into any other mode of =
operation, so right now it only gives you data when you ask for it, and =
probably any more frequent than 10 to 20 times per second isn't too =
useful for a remote "button" to track presses / release.

For those interested in the hw, I looked into the transceiver chip used =
which is a Cypress CY7C63723 "Encore" series device. This a simple micro =
controller that has an 8K EEPROM (for microcode) and has just a simple =
USB transceiver interface that the MCU can use to implement any USB =
device protocol.=20

http://www.datasheetcatalog.com/datasheets_pdf/C/Y/7/C/CY7C63723-PC.shtml=


There is an example firmware for this MCU chip that implements a HID =
class USB device here:

http://stephen.homesite.net/encore_c/index.html

See the attached appnote from Cypress that also gives microcode =
examples.=20

There is also an example reference design for an optical mouse which =
looks interesting.

http://www.cypress.com/design/RD1035

Anyway, I'd expect that the MyHD implementation is some variation of =
these "reference designs", and it's not hard to imagine that the NEC IR =
protocol is widely known and easy to implement.

As far as what I released, it's under whatever GPL license that makes =
sense to allow "free" use of the code for anyone to use for further =
developments.

Regards,
-- Steve

-----Original Message-----
From: myh...@li...
[mailto:myh...@li...]On Behalf Of Mike
Bourgeous
Sent: Tuesday, December 18, 2007 7:46 PM
To: Discussion for TL880 driver development
Subject: Re: [MyHD-develop] New MyHD USB infrared receiver lirc driver



> Date: Mon, 17 Dec 2007 10:15:52 -0500
> From: Ste...@co...
> To: myh...@li...
> Subject: [MyHD-develop] New MyHD USB infrared receiver lirc driver
>
> Hi all,
> It's been kind of quiet on the mailing list as I expect its a busy =
time of year with the holidays upon us :)

Indeed.  Between school, work, and the holidays, there's little time for =
side projects.

> But I managed to take a look at a USB protocol analyzer and figured =
out the MyHD infrared receiver that came with the MDP-130.

Cool!  The serial receiver was just an irman.  I wonder if they copied =
an open project for the USB one as well.  You mention that the IRZOL was =
close, but I can't help but wonder if there's one that is even closer.

> 3) When button is released, the device just keeps resending the same =
packet buffer

So even when the button is released it's sending regular interrupts?  =
Not so great for tickless kernels, but at least it's only ten times per =
second.

> Could this be added to the web page for the existing myhd serial IR =
device?

Yeah, when I get a chance I'll put it up.  By the way, you didn't give a =
version number in the README file for the GPL.  Which GPL version do you =
prefer?  Everything I've done so far with the MyHD is under GPLv2 only =
until Linus changes the kernel to something else.

Mike Bourgeous

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Re: [MyHD-develop] New MyHD USB infrared receiver lirc driver

[Mike B. <i_a...@ho...>]

> Date: Mon, 17 Dec 2007 10:15:52 -0500
> From: Ste...@co...
> To: myh...@li...
> Subject: [MyHD-develop] New MyHD USB infrared receiver lirc driver
>
> Hi all,
> It's been kind of quiet on the mailing list as I expect its a busy time o=
f year with the holidays upon us :)

Indeed.  Between school, work, and the holidays, there's little time for si=
de projects.

> But I managed to take a look at a USB protocol analyzer and figured out t=
he MyHD infrared receiver that came with the MDP-130.

Cool!  The serial receiver was just an irman.  I wonder if they copied an o=
pen project for the USB one as well.  You mention that the IRZOL was close,=
 but I can't help but wonder if there's one that is even closer.

> 3) When button is released, the device just keeps resending the same pack=
et buffer

So even when the button is released it's sending regular interrupts?  Not s=
o great for tickless kernels, but at least it's only ten times per second.

> Could this be added to the web page for the existing myhd serial IR devic=
e?

Yeah, when I get a chance I'll put it up.  By the way, you didn't give a ve=
rsion number in the README file for the GPL.  Which GPL version do you pref=
er?  Everything I've done so far with the MyHD is under GPLv2 only until Li=
nus changes the kernel to something else.

Mike Bourgeous

_________________________________________________________________
Get the power of Windows + Web with the new Windows Live.
http://www.windowslive.com?ocid=3DTXT_TAGHM_Wave2_powerofwindows_122007=

[MyHD-develop] New MyHD USB infrared receiver lirc driver

[Marchant, S. <Ste...@co...>]

Hi all,
It's been kind of quiet on the mailing list as I expect its a busy time =
of year with the holidays upon us :)

But I managed to take a look at a USB protocol analyzer and figured out =
the MyHD infrared receiver that came with the MDP-130.

The protocol is simple. It sends 8 byte messages via an interrupt =
transfer
polling routine for a key press and this program encodes the buttons for =
lirc.

{ char Key[0], char Key[1], char Key[2], char Key[3], char =
Repeat_Counter, char Seq_Num, NULL, NULL }

Event Sequence:
1) When the button is pressed, the 32-bit RC5 code is sent and =
repeat_counter=3D0
   with the next sequence number sent
2) While button is down, every 100ms, repeat_counter increments, same =
"Seq_Num"
3) When button is released, the device just keeps resending the same =
packet buffer

Since I'm not proficient at writing kernel modules, I looked for a =
userspace usblib interface driver for this purpose. I found the IRZOL =
driver that provided the skeleton framework which I used to develop this =
lirc driver.

So I hope this helps someone, and certainly it is useful to me as I can =
use the receiver in my MythTV box.

Could this be added to the web page for the existing myhd serial IR =
device?

Regards,
-- Steve



Stephen Marchant - Hardware Engineer
_________________________________
COGNEX Corp
http://www.cognex.com
Phone: 508-650-3258
Fax: 508-650-3335

 <<myhd_usb.tar.gz>>  <<README.txt>>=20

Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Todd I. <ign...@gm...>]

On 9/14/07, Marchant, Stephen <Ste...@co...> wrote:
> Hi all,
> That's a great video (and development effort) that really gives this project a boost!
>
> It's been a busy summer and I haven't look at this in awhile, but previously I was trying to figure out how to use graphedit to "playback" mpeg-2 TS video so that I could get some traces to figure out how to implement it in the linux driver. I finally figured out how to get video playback using the "DVD Navigator" filter and sending the audio/video streams to the MDP100 capture device. This also sends it out the video port, and optionally with another "Overlay" filter allows the decoded video to be pushed back to the VGA frame buffer in an overlay window.
>
> I'd like to start looking at mpeg decoding again and see what we can get done. I was scouring the web and looking for some drivers already out there that already have the "skeleton" or framework for this. Any ideas for how to get this into linux? I'd imagine we could to fit it into the v4l api or something custom?


The Hauppauge WinTV-PVR-350 has an SD MPEG2 decoder and TV-Out on the
card.  So, the framework for how that is handled in Linux may be
relevant.    The hardware decoder is supported in MythTV too.


> Anyway, good job on this and hope to see development continue :)
> -- Steve
>
> -----Original Message-----
> From: myh...@li...
> [mailto:myh...@li...]On Behalf Of Torgeir
> Veimo
> Sent: Thursday, September 13, 2007 4:07 AM
> To: Discussion for TL880 driver development
> Subject: Re: [MyHD-develop] TL880 ALSA Driver and Video Playback
>
>
> On Thu, 2007-09-13 at 00:16 -0700, Mike Bourgeous wrote:
> > I'm pleased to announce that a functioning TL880 ALSA driver has been
> > checked into CVS, with audio going out throug the MyHD S/PDIF port.
>
> Very good!
>
> > Of course, there are limitations.  If the video size goes much beyond 400
> > pixels wide the framerate drops significantly, as it's currently being
> > played using the framebuffer driver.
>
> Do you have a feeling for how difficult it will be to get accelerated
> video playback working?
>
> --
> -Tor
>
>
> -------------------------------------------------------------------------
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>
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>

Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Mike B. <i_a...@ho...>]

>From: Torgeir Veimo <to...@ne...>
>Reply-To: Discussion for TL880 driver development 
><myh...@li...>
>To: Discussion for TL880 driver development 
><myh...@li...>
>Subject: Re: [MyHD-develop] TL880 ALSA Driver and Video Playback
>Date: Thu, 13 Sep 2007 09:06:53 +0100
>
>Do you have a feeling for how difficult it will be to get accelerated
>video playback working?
>

I haven't really done anything with MPEG.  I think that will be one of the 
more difficult tasks.  As Steve mentioned in his e-mail, he's going to try 
to get some traces of the process, which will help.  I do, however, think it 
will be possible to use the card to scale YUV video up to the full screen 
size, allowing any video format to be played, not just MPEG.  The YUV data 
is stored in chunks rather than in a packed pixel or a planar format, and I 
haven't had time to figure that out yet.  Stay tuned.

Mike Bourgeous

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Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Mike B. <i_a...@ho...>]

>From: "Marchant, Stephen" <Ste...@co...>
>Reply-To: Discussion for TL880 driver development 
><myh...@li...>
>To: "Discussion for TL880 driver development" 
><myh...@li...>
>Subject: Re: [MyHD-develop] TL880 ALSA Driver and Video Playback
>Date: Fri, 14 Sep 2007 16:20:55 -0400
>
>Hi all,
>That's a great video (and development effort) that really gives this 
>project a boost!

Thanks.  I've made improvements since the video already: I've figured out 
the audio skipping problem with mplayer.  The ALSA driver is currently using 
a polling mechanism to update the audio buffer (i.e. no card interrupts are 
being used), which limits the buffer size.  So, I increased the minimum 
buffer size, and mplayer and xine play skip free audio (with video on the 
normal video card).  I still need to figure out how to swap the channels, as 
the left channel's audio comes out the right.  Once I do that I think AC3 
passthrough will start working with receivers that support AC3 without the 
non-audio bit set.

>It's been a busy summer and I haven't look at this in awhile, but 
>previously I was trying to figure out how to use graphedit to "playback" 
>mpeg-2 TS video so that I could get some traces to figure out how to 
>implement it in the linux driver. I finally figured out how to get video 
>playback using the "DVD Navigator" filter and sending the audio/video 
>streams to the MDP100 capture device. This also sends it out the video 
>port, and optionally with another "Overlay" filter allows the decoded video 
>to be pushed back to the VGA frame buffer in an overlay window.

Cool!  Can you save some of the graphs and send them over?  I've been trying 
to figure that out for a while.  I'm sure it was difficult, because the 
MyHD/TL880 filters are scattered all over the place.

>I'd like to start looking at mpeg decoding again and see what we can get 
>done. I was scouring the web and looking for some drivers already out there 
>that already have the "skeleton" or framework for this. Any ideas for how 
>to get this into linux? I'd imagine we could to fit it into the v4l api or 
>something custom?

The DVB API accommodates almost everything related to the MyHD, together 
with the framebuffer, v4l, and ALSA.  DVB handles MPEG recording and 
playback, v4l handles analog video recording, ALSA handles audio recording 
and playback, and the framebuffer does OSD/overlay (though I think the DVB 
API has an OSD feature as well).  There are a few features I'm not sure 
about, though: Picture-in-Picture and YUV video playback (not supported in 
the Windows driver, but I think it's possible).

Converting to the DVB API will take quite a bit of effort, though, so I'd 
probably start out with simple command-line stuff.

>Anyway, good job on this and hope to see development continue :)
>-- Steve

Of course. ;)

Mike Bourgeous

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Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Torgeir V. <to...@po...>]

On 14 Sep 2007, at 21:20, Marchant, Stephen wrote:

> I'd like to start looking at mpeg decoding again and see what we  
> can get done. I was scouring the web and looking for some drivers  
> already out there that already have the "skeleton" or framework for  
> this. Any ideas for how to get this into linux? I'd imagine we  
> could to fit it into the v4l api or something custom?

I guess something along the lines of the libcle266mpegdec library.  
This is a small library that acts as the frontend of the cle266  
hardware found on Via epia mainboards, doing basic mpeg2 TS decoding.  
My assumptions would be that the capabilities of the MyHD card is  
about the same as the Via hardware. See http://sourceforge.net/ 
project/showfiles.php?group_id=176530

-- 
Torgeir Veimo
to...@po...

Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Marchant, S. <Ste...@co...>]

Hi all,
That's a great video (and development effort) that really gives this =
project a boost!=20

It's been a busy summer and I haven't look at this in awhile, but =
previously I was trying to figure out how to use graphedit to "playback" =
mpeg-2 TS video so that I could get some traces to figure out how to =
implement it in the linux driver. I finally figured out how to get video =
playback using the "DVD Navigator" filter and sending the audio/video =
streams to the MDP100 capture device. This also sends it out the video =
port, and optionally with another "Overlay" filter allows the decoded =
video to be pushed back to the VGA frame buffer in an overlay window.

I'd like to start looking at mpeg decoding again and see what we can get =
done. I was scouring the web and looking for some drivers already out =
there that already have the "skeleton" or framework for this. Any ideas =
for how to get this into linux? I'd imagine we could to fit it into the =
v4l api or something custom?

Anyway, good job on this and hope to see development continue :)
-- Steve

-----Original Message-----
From: myh...@li...
[mailto:myh...@li...]On Behalf Of Torgeir
Veimo
Sent: Thursday, September 13, 2007 4:07 AM
To: Discussion for TL880 driver development
Subject: Re: [MyHD-develop] TL880 ALSA Driver and Video Playback


On Thu, 2007-09-13 at 00:16 -0700, Mike Bourgeous wrote:
> I'm pleased to announce that a functioning TL880 ALSA driver has been=20
> checked into CVS, with audio going out throug the MyHD S/PDIF port. =20

Very good!

> Of course, there are limitations.  If the video size goes much beyond =
400=20
> pixels wide the framerate drops significantly, as it's currently being =

> played using the framebuffer driver.

Do you have a feeling for how difficult it will be to get accelerated
video playback working?=20

--=20
-Tor


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Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Torgeir V. <to...@ne...>]

On Thu, 2007-09-13 at 00:16 -0700, Mike Bourgeous wrote:
> I'm pleased to announce that a functioning TL880 ALSA driver has been 
> checked into CVS, with audio going out throug the MyHD S/PDIF port.  

Very good!

> Of course, there are limitations.  If the video size goes much beyond 400 
> pixels wide the framerate drops significantly, as it's currently being 
> played using the framebuffer driver.

Do you have a feeling for how difficult it will be to get accelerated
video playback working? 

-- 
Torgeir Veimo <to...@ne...>

Re: [MyHD-develop] TL880 ALSA Driver and Video Playback

[Torgeir V. <to...@po...>]

On Thu, 2007-09-13 at 00:16 -0700, Mike Bourgeous wrote:
> I'm pleased to announce that a functioning TL880 ALSA driver has been 
> checked into CVS, with audio going out throug the MyHD S/PDIF port.  

Very good!

> Of course, there are limitations.  If the video size goes much beyond 400 
> pixels wide the framerate drops significantly, as it's currently being 
> played using the framebuffer driver.

Do you have a feeling for how difficult it will be to get accelerated
video playback working? 

-- 
-Tor

[MyHD-develop] TL880 ALSA Driver and Video Playback

[Mike B. <i_a...@ho...>]

Hello all,

I'm pleased to announce that a functioning TL880 ALSA driver has been 
checked into CVS, with audio going out throug the MyHD S/PDIF port.  
Additionally, using a three-line modification to mplayer, I have been able 
to play back videos using the MyHD as both the video and audio output 
device.  With a few more tweaks I'll put out an official release.  Users of 
cards other than the MyHD MDP-110 (which is what I own) are asked to try the 
version in CVS and see if the audio output works.

You can see it all in action here (a blazingly exciting 3m45s demonstration 
complete with thrilling ambient music):

http://www.youtube.com/watch?v=cDWH7d8pbH0

Or, download the original .avi in MPEG-4 with MP3 audio here:

http://myhd.sourceforge.net/video/tl880%20alsa%20demo.avi


Of course, there are limitations.  If the video size goes much beyond 400 
pixels wide the framerate drops significantly, as it's currently being 
played using the framebuffer driver.


Mike Bourgeous

_________________________________________________________________
Kick back and relax with hot games and cool activities at the Messenger 
Café. http://www.cafemessenger.com?ocid=TXT_TAGHM_SeptHMtagline1

[MyHD-develop] TL880Spy 1.3

[Mike B. <i_a...@ho...>]

I've uploaded a new version of the Windows card analysis tool.  It has the 
ability to generate modelines based on the current MyHD resolution, and show 
other information related to the display, including the ability to change 
the aspect ratio masking/background color.  I also added a rapid register 
record feature, that tries to record all changes made to a register (though 
due to scheduling limitations it can miss a change now and then).

My hope is that by eventually making this tool useful for Windows users to 
tweak their TL880 they will provide enough feedback to support Linux driver 
development.

Mike Bourgeous

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Re: [MyHD-develop] Looking at MPEG2 or basic YUV video playback ->Compilation Pr

[Mike B. <i_a...@ho...>]

>From: "Marchant, Stephen" <Ste...@co...>
>Reply-To: Discussion for TL880 driver development 
><myh...@li...>
>To: "Discussion for TL880 driver development" 
><myh...@li...>
>Subject: Re: [MyHD-develop] Looking at MPEG2 or basic YUV video playback 
>->Compilation Problem under Ubuntu
>Date: Thu, 31 May 2007 12:21:38 -0400
>
>Hi Mike and Jerry, I haven't done much in the last two months mostly been 
>busy with my new position at my work, along with a busy personal life with 
>my son's baseball, my wife's classes, and all those family fun get 
>togethers ;)
>
>I too am not impressed even with P4-2Ghz CPU performance for HD MPEG2 
>decoding, so I would certainly like to see the decoder get online.

My brother has a Pentium D at 2.8GHz (dual core).  His PC cannot play HD 
video in Windows, but works well with MythTV.  Another brother has a 
hyperthreaded Pentium 4, also at 2.8 GHz, which plays HD video very well in 
Windows.  Both are using NVidia video cards.  While the Pentium D is quite 
affordable now, I still feel that the requirements for CPU decoding of MPEG2 
are too steep (let alone MPEG4 or the other codecs used with HDDVD/BluRay).

>I have access to an I2C bus analyzer that I could use for a few days of 
>probing to make sure I get all the data. My previous I2C traces decoded 
>from the PCI bus cycles is in a bit too "raw" form, and hard to piece 
>together from the different "snippets." So along those lines, is there a 
>clean way to "script" the I2C transactions to do some testing of the raw 
>data dumps?

If you mean the PCI traces, it may be possible to use sed (just basic 
search-and-replace regex patterns) scripts to transform them into a bash 
script.  I can't remember whether I've written an I2C read/write utility, 
but doing so would be fairly trivial.  All one would need to do is add an 
ioctl or two for I2C transfers, then write a new utility based on the 
iocreadreg utility.

>How far off is this from developing the "mpeg" device driver that pushes 
>data to the janus?

I think it's still a way off.  I'm not sure what still needs to be done to 
get there, so when I had time to work on the driver I was just writing 
routines that mirrored the functionality of the Windows driver.  Most of my 
card "discoveries" have come from other means, though, such as sound 
playback and image display being discovered by loading memory dumps captured 
with TL880Spy.

>Also, I found a site some time ago that had sample mpeg clips for doing 
>video testing and had downloaded a few that I could test out the HD 
>decoding quality with the MyHD media player. They are very large, but do a 
>great job for showing off the video quality.
>
>Here's the link:
>http://www.w6rz.net/
>
>So my question is does anyone have some very small clips like couple-100k 
>that just shows a solid color or like white or black at a few different 
>resolutions. I'd like to do some PCI captures of the data being pushed over 
>and it helps to start with small data dumps.

There are cool CLI tools in Linux for putting together generated videos.  
Take a look at the mjpeg tools (a Google search should find them).  I don't 
know the syntax off hand, but it's possible to generate a specified number 
of frames of a solid color, pipe that output into a program that converts 
RGB to YUV, then pipe that into a program that encodes YUV into MPEG.

>
>Another question is then if you can use graphedit filters to playback the 
>video. I tried this a couple of different ways but wasn't able to get it 
>right and it seemed to crash the MyHD driver and blue-screen the PC. Any 
>thoughts on this would be very helpful.

I tried figuring out how to do this as well, but with no success.  I also 
tried using the "Connect to Remote Filter Graph" to see if the MyHD app 
showed up, but I got nothing.  I'm not very familiar with GraphEdit anyway, 
so I don't even know if that was the right option anyway.  It may be 
possible to hook up an application-level debugger to the MyHD app, and set 
breakpoints on some of the imported functions from DirectX.  A debug build 
of DirectX (if one exists) might be helpful here.

>So more questions than answers here, but I hope to at least start looking 
>at this and see what I can figure out.

I'm sure anything you can do will be helpful.  I'm in the process of moving 
(involuntarily), so I'll still be busy for a while longer.  Happy hacking.

Mike Bourgeous

_________________________________________________________________
PC Magazine’s 2007 editors’ choice for best Web mail—award-winning Windows 
Live Hotmail. 
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Re: [MyHD-develop] Looking at MPEG2 or basic YUV video playback -> Compilation Problem under Ubuntu

[Mark L. <ma...@kn...>]

On Thu, May 31, 2007 at 02:51:07PM -0400, Todd Ignasiak wrote:

> I too am not impressed even with P4-2Ghz CPU performance for HD
> MPEG2 decoding, so I would certainly like to see the decoder get
> online.

A hardware decoder would rock.  I would love an excuse to dig out
my WinTV-HD some day.

I was never happy with hi def playback until I got a dual core CPU (x2
3800), FWIW.  Both X and the player are quite busy, so it made a big
difference.

Of course, I do the bob deinterlacing, and scale to 720p, which is
probably the most cpu-intensive way to do it.

Mark

Re: [MyHD-develop] Looking at MPEG2 or basic YUV video playback -> Compilation Problem under Ubuntu

[Todd I. <ign...@gm...>]

On 5/31/07, Marchant, Stephen <Ste...@co...> wrote:
>
> I too am not impressed even with P4-2Ghz CPU performance for HD MPEG2 decoding, so I would certainly like to see the decoder get online.
>

My Athlon64 3200+ does the job, but doing HD playback with MythTV can
still be problematic.  Stuttery playback and OSD issues always seem to
pop up.  And, XvMC has been even more troubling.      Even at its
best, it's still not as good as MyHD playback was.

The combination of the MythTV backend's feature set, with high quality
Janus playback would be pretty great.

> Another question is then if you can use graphedit filters to playback the video. I tried this a couple of different ways but wasn't able to get it right and it seemed to crash the MyHD driver and blue-screen the PC. Any thoughts on this would be very helpful.

There was a tool discussed on avsforum called "xCaster" which would
take HD streams from a MyHD card and stream them to another PC across
the network.    It hooked in to grab the data with graphedit.  The
threads about that app might have some good setup information for you:

http://archive.avsforum.com/avs-vb/showthread.php?threadid=336149


> -----Original Message-----
> From: myh...@li...
> [mailto:myh...@li...]On Behalf Of Mike
> Bourgeous
> Sent: Thursday, May 31, 2007 1:08 AM
> To: myh...@li...
> Subject: Re: [MyHD-develop] Compilation Problem under Ubuntu
>
>
> Interesting.  The nxt200x.h is not needed at the moment.  Just comment out
> the #include <...nxt200x.h> line, and if necessary, any lines that fail to
> compile after that (most likely involving dvb frontend registration, which
> is not yet used by the driver).
>
> What would you like to see functional on the card first?  I think it might
> be possible to write a video playback driver that decodes video with the CPU
> and writes the decoded YUV data to the card's memory.  The other rather
> close option is a basic sound playback driver.
>
> Glad to see there are still Janus/TL880 users out there.  I've been
> disappointed with MPEG-2 performance on my Athlon 1800+ with mythtv, so I
> will probably try to get back into development (life has been busy).
>
> Mike Bourgeous
>
> >From: "Palladium Star" <pal...@gm...>
> >Reply-To: Discussion for TL880 driver development
> ><myh...@li...>
> >To: myh...@li...
> >Subject: [MyHD-develop] Compilation Problem under Ubuntu
> >Date: Wed, 30 May 2007 13:42:17 -0500
> >
> >While attempting to do a make, it comes back with an error about the
> >nxt200x.h include file. It is attempting to find it in
> >../drivers/media/dvb/frontends/, yet there is no folder in the sources
> >folders. I did find an nxt200x.h within the ../include/config/dvb/
> >folder. This, however was fuitless as the file is 0 byte. Is there any
> >suggestions as I do want to help gather information. I am using a
> >AccessDTV card (Janus based) and would love to see a driver that will
> >be able to turn this on for viewing and recording use.
> >
> >
> >Jerry
>
> _________________________________________________________________
> Catch suspicious messages before you open them-with Windows Live Hotmail.
> http://imagine-windowslive.com/hotmail/?locale=en-us&ocid=TXT_TAGHM_migration_HM_mini_protection_0507
>
>
>
> -------------------------------------------------------------------------
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>

Re: [MyHD-develop] Looking at MPEG2 or basic YUV video playback -> Compilation Problem under Ubuntu

[Marchant, S. <Ste...@co...>]

Hi Mike and Jerry, I haven't done much in the last two months mostly =
been busy with my new position at my work, along with a busy personal =
life with my son's baseball, my wife's classes, and all those family fun =
get togethers ;)

I too am not impressed even with P4-2Ghz CPU performance for HD MPEG2 =
decoding, so I would certainly like to see the decoder get online.=20

I have access to an I2C bus analyzer that I could use for a few days of =
probing to make sure I get all the data. My previous I2C traces decoded =
from the PCI bus cycles is in a bit too "raw" form, and hard to piece =
together from the different "snippets." So along those lines, is there a =
clean way to "script" the I2C transactions to do some testing of the raw =
data dumps?

How far off is this from developing the "mpeg" device driver that pushes =
data to the janus?

Also, I found a site some time ago that had sample mpeg clips for doing =
video testing and had downloaded a few that I could test out the HD =
decoding quality with the MyHD media player. They are very large, but do =
a great job for showing off the video quality.

Here's the link:
http://www.w6rz.net/

So my question is does anyone have some very small clips like =
couple-100k that just shows a solid color or like white or black at a =
few different resolutions. I'd like to do some PCI captures of the data =
being pushed over and it helps to start with small data dumps.

Another question is then if you can use graphedit filters to playback =
the video. I tried this a couple of different ways but wasn't able to =
get it right and it seemed to crash the MyHD driver and blue-screen the =
PC. Any thoughts on this would be very helpful.

So more questions than answers here, but I hope to at least start =
looking at this and see what I can figure out.
Best Regards,
-- Steve

-----Original Message-----
From: myh...@li...
[mailto:myh...@li...]On Behalf Of Mike
Bourgeous
Sent: Thursday, May 31, 2007 1:08 AM
To: myh...@li...
Subject: Re: [MyHD-develop] Compilation Problem under Ubuntu


Interesting.  The nxt200x.h is not needed at the moment.  Just comment =
out=20
the #include <...nxt200x.h> line, and if necessary, any lines that fail =
to=20
compile after that (most likely involving dvb frontend registration, =
which=20
is not yet used by the driver).

What would you like to see functional on the card first?  I think it =
might=20
be possible to write a video playback driver that decodes video with the =
CPU=20
and writes the decoded YUV data to the card's memory.  The other rather=20
close option is a basic sound playback driver.

Glad to see there are still Janus/TL880 users out there.  I've been=20
disappointed with MPEG-2 performance on my Athlon 1800+ with mythtv, so =
I=20
will probably try to get back into development (life has been busy).

Mike Bourgeous

>From: "Palladium Star" <pal...@gm...>
>Reply-To: Discussion for TL880 driver development=20
><myh...@li...>
>To: myh...@li...
>Subject: [MyHD-develop] Compilation Problem under Ubuntu
>Date: Wed, 30 May 2007 13:42:17 -0500
>
>While attempting to do a make, it comes back with an error about the
>nxt200x.h include file. It is attempting to find it in
>../drivers/media/dvb/frontends/, yet there is no folder in the sources
>folders. I did find an nxt200x.h within the ../include/config/dvb/
>folder. This, however was fuitless as the file is 0 byte. Is there any
>suggestions as I do want to help gather information. I am using a
>AccessDTV card (Janus based) and would love to see a driver that will
>be able to turn this on for viewing and recording use.
>
>
>Jerry

_________________________________________________________________
Catch suspicious messages before you open them-with Windows Live =
Hotmail.=20
http://imagine-windowslive.com/hotmail/?locale=3Den-us&ocid=3DTXT_TAGHM_m=
igration_HM_mini_protection_0507

Re: [MyHD-develop] Compilation Problem under Ubuntu

[Mike B. <i_a...@ho...>]

Interesting.  The nxt200x.h is not needed at the moment.  Just comment out 
the #include <...nxt200x.h> line, and if necessary, any lines that fail to 
compile after that (most likely involving dvb frontend registration, which 
is not yet used by the driver).

What would you like to see functional on the card first?  I think it might 
be possible to write a video playback driver that decodes video with the CPU 
and writes the decoded YUV data to the card's memory.  The other rather 
close option is a basic sound playback driver.

Glad to see there are still Janus/TL880 users out there.  I've been 
disappointed with MPEG-2 performance on my Athlon 1800+ with mythtv, so I 
will probably try to get back into development (life has been busy).

Mike Bourgeous

>From: "Palladium Star" <pal...@gm...>
>Reply-To: Discussion for TL880 driver development 
><myh...@li...>
>To: myh...@li...
>Subject: [MyHD-develop] Compilation Problem under Ubuntu
>Date: Wed, 30 May 2007 13:42:17 -0500
>
>While attempting to do a make, it comes back with an error about the
>nxt200x.h include file. It is attempting to find it in
>../drivers/media/dvb/frontends/, yet there is no folder in the sources
>folders. I did find an nxt200x.h within the ../include/config/dvb/
>folder. This, however was fuitless as the file is 0 byte. Is there any
>suggestions as I do want to help gather information. I am using a
>AccessDTV card (Janus based) and would love to see a driver that will
>be able to turn this on for viewing and recording use.
>
>
>Jerry

_________________________________________________________________
Catch suspicious messages before you open them—with Windows Live Hotmail. 
http://imagine-windowslive.com/hotmail/?locale=en-us&ocid=TXT_TAGHM_migration_HM_mini_protection_0507

[MyHD-develop] Compilation Problem under Ubuntu

[Palladium S. <pal...@gm...>]

While attempting to do a make, it comes back with an error about the
nxt200x.h include file. It is attempting to find it in
../drivers/media/dvb/frontends/, yet there is no folder in the sources
folders. I did find an nxt200x.h within the ../include/config/dvb/
folder. This, however was fuitless as the file is 0 byte. Is there any
suggestions as I do want to help gather information. I am using a
AccessDTV card (Janus based) and would love to see a driver that will
be able to turn this on for viewing and recording use.


Jerry