Hi, list
I wanted to try my television card on slax Linux which uses Linux
2.6.24 as its kernel.
And I compiled my downloaded v4l-dvb on slax, but unfortunately, it
won't compile.
From the dmesg, I noticed that Linux i2c core and Linux v4l2 have
some changes. Such as
struct video_device
Hi,mylist:
Can VLC player support ATSC?
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of that firmware?
Thanks very much.
On Jan 18, 2008 11:39 PM, CityK [EMAIL PROTECTED] wrote:
kevin liu wrote:
I just tried to get dvb-fe-nxt2004.fw using perl
get_dvb_firmware nxt2004
But it seems that the firmware is not there any more.
Aver move it to another place,
I checked
Hi,
I just tried to get dvb-fe-nxt2004.fw using perl
get_dvb_firmware nxt2004
But it seems that the firmware is not there any more.
Aver move it to another place, why we copy as much firmware as
possible into
linuxtv's website, then the perl script will not be any problem?
Hi,everyone.
I am using mplayer to test my tv card playing NTSC program.
But mplayer will give me such complaints:
++
Invalid frame duration value (0.635/0.000 = -0.635). Defaulting to 0.034 sec.
v4l2: select timeoutV: 0.191 ct: 0.007
I have made mt2131 tuner work correctly using your mt2131 tuner driver.
And I am working on Linux driver of one auvitek television card.
But the driver still has a long way to go.
So the code may be made public when all the issues being solved.
Thanks and best regards.
Kevin.
The mt2131 driver
Dear linux-dvb:
Not long before, I added microtuen mt2131 tuner to Linux kernel
2.6.20which is the standard kernel of my Ubuntu feisty.
But these days, I installed Ubuntu gutsy which uses kernel 2.6.22. And I
compiled mt2131 kernel module, however, I can't
tune any channel anymore.
I
Dear:
I want to use snd-usb-audio to drive my usb audio stream interface.
Just now, I got the correct tv program sound by accident using the driver.
I even don't know how I did that, but after I unplugged my tv card
and plugged
again, the driver doesn't work again
I am going crazy
Dear,
Thanks for your advice.
You didn't provide much information about what does not work. But here
are some things you might want to try:
$ aplay -l
And see which card number your tv-card has been assigned to. Replace
$CARDNUMBER with this number in the following.
I got a strange
Dear,
Thanks for your advice.
You didn't provide much information about what does not work. But here
are some things you might want to try:
$ aplay -l
And see which card number your tv-card has been assigned to. Replace
$CARDNUMBER with this number in the following.
I got a strange
you cannot playback anything on your tv tuner device, onl capture audio data.
try arecord -l
Dear Markus,
I cat /proc/asound/pcm, getting
[EMAIL PROTECTED]:~$ cat /proc/asound/pcm
00-01: CMI9880 Digital : CMI9880 Digital : playback 1 : capture 1
00-00: CMI9880 : CMI9880 : playback 1 :
Yeah, I have Hauppauge WinTV HVR 950 at hand. And when I use it
under my Ubuntu, I got only the video too.
When I dmesg, my ubuntu shows that audio stream was not handled correctly.
I think this is because the driver.
So you maybe wait for future driver to support this.
Good
Dear,
Now I found that my tv card have a usb audio class compliant audio
stream interface.
Linux's audio class driver snd-usb-driver finds my audio device,
and the relative device nodes under /dev have been created
successfully.
And I am also using adevice option to give mplayer
and VIDIOC_S_FMT,
I got the right image now.
Thank you for your help and advice.
:-) :-)
On Nov 28, 2007 8:48 PM, Markus Rechberger [EMAIL PROTECTED] wrote:
On 11/28/07, kevin liu [EMAIL PROTECTED] wrote:
Dear,
/** I attached one of my video frame, please help me to
examine
Dear,
My usb device controller has an audio stream isoc interface.
When my tv card was plugged in, the audio stream isoc interface is
found by the snd-usb-audio.
I think snd-usb-audio.ko is Linux USB audio class driver, but why
saa7134 project maintain its own sound card driver.
Dear:
In Linux DVB framework, mt2131 works for atsc tv mode.
But the problem is that can I use the same module when I want to see any
NTSC tv program?
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] wrote:
kevin liu wrote:
Dear:
In Linux DVB framework, mt2131 works for atsc tv mode.
But the problem is that can I use the same module when I want to see any
NTSC tv program?
mt2131 currently does not support analog television. All we need is to fill
.set_analog_params
Hi,
I am confused by the number 172 in em28xx-core.c, function
em28xx_isoc_video(),
When we acquire the bottom field, we first see if everything is correct
using these states:
+++
if (!(*f)-top_field) {
You mean all the c compilers will give 'unknown' a special process???
On Nov 15, 2007 11:04 PM, Mauro Carvalho Chehab [EMAIL PROTECTED] wrote:
Em Qui, 2007-11-15 às 09:43 +0800, kevin liu escreveu:
Dear everyone:
I am reading v4l2 tuner part code these days, when I come to mt20xx.c
Dear everyone:
I am reading v4l2 tuner part code these days, when I come to mt20xx.c,
in microtune_init(), the use of the char pointer name maybe cause some
fatal error sometimes for this state:
++
507 name = unknown;
Dear everyone:
How could I use mplayer to play my composite tv program.
I use this command mplayer tv:// -tv
driver=v4l2:device=/dev/video0:norm=NTSC:noaudio
Seems no result.
:-(
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. :-)
You are so kind !!!
Thank you so much.
On Nov 8, 2007 7:03 PM, Markus Rechberger [EMAIL PROTECTED] wrote:
Hello Kevin,
On 11/8/07, kevin liu [EMAIL PROTECTED] wrote:
Dear everyone:
I wonder why v4l2 driver cancel all the urbs in VIDIOC_S_FMT and
then reinit all the urbs
Dear everyone:
I wonder why v4l2 driver cancel all the urbs in VIDIOC_S_FMT and
then reinit all the urbs to submit.
VIDIOC_S_FMT only negotiate frame format with application like
mplayer and has nothing to do with our v4l2 driver.
And in my driver I follow the way most drivers have
Dear:
I am using mplayer to play live tv.
When I print the debug info, I found that mplayer send the same ioctl
commands, I wonder why is this?
These commands include VIDIOC_G_FMT, VIDIOC_S_FMT, VIDIOC_QUERY_BUF and
also maybe some others i don't find now.
:-(
Dear Stoth:
I found that in mt2131.c, function mt2131_set_params(),
line 119 has a little bug:
^
priv-frequency = (f_lo1 - f_lo2 - MT2131_IF2) * 1000,
should be
priv-frequency = (f_lo1 - f_lo2 - MT2131_IF2) * 1000;
Dear guys:
I think v4l-dvb should support a more general v4l tuner ops, when
I add my own driver to Linux v4l, I am just confused by the v4l tuner
architecture.
I saw Markus Rechberge's code, he move the xc3028 tuner to the
tuner dir, i think maybe we could move all v4l tuner to a
Hi, Markus.
I got the news the em28xx codes was removed from the v4l-dvb repo,
but can the em28xx based tv cards still work under Linux kernel?
And does libtuner.so support both the em28xx based cards demod and
tuner in the future?
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Hi, Markus
I am now have a Hauppauge WinTV HVR 950 and a Pinnacle PCTV HD Pro card.
When I tried the two cards, I only can get the video capture work.
There is NO SOUND at all.
I am using the latest v4l-dvb source code.
Following is my dmesg gives out:(Hauppauge WinTV HVR 950)
Dear Markus:
In em28xx-video.c, when you design memory map function,
You used this state:
for(i=0; idev-num_frames; i++){
if(dev-frame[i].buf.m.offset PAGE_SHIFT == vma-pgoff)
break;
}
Why dev-frame[i].buf.m.offPAGE_SHIFT == vma-pgoff;
I see the mmap function
Dear Markus:
I am studying the em28xx source code.
But I am puzzled by the function video_mux.
It seems that the function does nothing there.
Could you explain it ?
Thank you.
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You may need to have a look at the linux-dvb framework.
The memory is allocated from systems' DMA area.
So you will have to limit the buffer count to let your driver work correctly.
Good luck.
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Dear Mako:
I am studying the em28xx codes under Linux kernel(2.6.20). It
seems that there is no ATSC or NTSC support.
In em28xx-card.c, it defines em28xx_boards array to specify the tv
card the driver can support, struct em28xx_input indicates the tv
input method, but in the em28xx_boards,
Hi,
I think your computer can play HDTV program properly.
I use mplayer playing my HDTV program these days.
And It give me a good effect.
By the way, HDTV don't need your system to have mpeg4 processing
ability, it only need mpeg2 decoder.
And you can give your mplayer a more
Hi, guys
Linuxtv.org suggests many players for watching tv under linux OS.
I made gxine and mplayer work well with the FusionHDTV5 USB silver
tv card, but I only could watch SDTV using the two players.
FusionHDTV5 USB silver can support HDTV, but I can't use gxine or
mplayer to watch
Dear Nicola
Mplayer can give a perfect HDTV effects, but after a period of
time, it gives such complaints:
Too many video packets in the buffer: (148 in 8421326 bytes).
Maybe you are playing a non-interleaved stream/file or the codec failed?
For AVI files, try to force non-interleaved
Dear:
Can VLC player support ATSC mode?
And how it works, it seems that it doesn't need and channels.conf file.
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Hi, everyone.
Which player I could use for HDTV with Dvico Fusion HDTV5 USB silver card?
The signal ATSC.
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