[FFmpeg-user] Capturing from DVB-T card
m.rovis at inet.hr
Fri Nov 2 00:47:52 CET 2012
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I hope it's not too late to look at issues in this ten months old thread.
Easily found on the web, starting from here:
But I'm replying from my mailbox. Find more underneath, pls.
On 22/12/11 03:07, Carl Eugen Hoyos wrote:
> Heiko Baums <lists <at> baums-on-web.de> writes:
>> But now I seem to have an a/v-sync issue similar to the one I
>> have with mencoder and lavc.
> -async 1 should fix it
>> And the picture quality doesn't seem to be the best with
> But that is not FFmpeg's fault;-) (Both variants save what the tv
> card outputs, without the slightest
>> it looks at least a bit worse than with tvtime. But I hadn't had
time to look
>> closer at every ffmpeg option and which options I currently have
>> set in tvtime.
> Use a post-processing filter to improve visual quality, the
> informations should apply.
> Carl Eugen
> _______________________________________________ ffmpeg-user mailing
> list ffmpeg-user at ffmpeg.org
I've checked all things in detail in the thread, but I can't get
anything out properly.
ffmpeg -f pulse -i default -f v4l2 -channel 1 -i /dev/video0 -s
768x576 Ffm_`date +%y%m%d_%H%M`.avi
(instead of overwriting tries with -y, I prefer having them while
still using same command, so: Ffm_`date +%y%m%d_%H%M`.avi )
I do get fine video in (it's Composite input on old Hauppauge 3000 card).
But I can't get the audio...
What should I try? I have pulse installed just fine (mostly)...
I'm sorry, and I'm glad at the same time. More glad than sorry!
Because just now, I got the audio to work... (I wanted to ask how to
But don't worry. It's worth reviving this thread. Because I don't have
good quality! Only good if no better there, at this time!
So the command is as above.
OTOH, ommitting "-s 768x576" (I like setsar=1 on setdar=1.333 on
PAL, good for Cinelerra), it gives me only 640x480...
Why? Because I know my card gives 768x576. How do I get it?
In long years, I have been using the commands (the problem is they
haven't worked yet till my recent hardware update:
http://forums.gentoo.org/viewtopic-p-7173420.html#7175518 ) summarized as:
mencoder tv:// -profile mpeg4_capt -profile mpeg4_capt_MP3 -o
where, in ~/.mplayer/mencoder I have:
And that just about always gave me audio/video as fine as it was
broadcast od more precisely sent via cable.
How do I get that with ffmpeg?
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