On 07/08/2010 05:49 PM, Devin Heitmueller wrote:
That card does have an onboard scaler, although it's not clear to me
why it isn't working. Exactly what command line did you use?
At first, I was always using
mplayer tv:// -tv device=/dev/video1:input=1:norm=NTSC
which defaults to a resolution of 640x480. This output looked correct
(except for vertical stripes) in kernel 2.6.32-23-generic, but was
horizontally shifted after I updated to the current mercurial sources.
Then I noticed that
mplayer tv:// -tv device=/dev/video1:input=1:norm=NTSC:width=720
gives a correct picture with current hg source.
v4l2: 1199 frames successfully processed, -3 frames dropped.
>> ...
Yeah, I don't know. You would have to ask the mplayer/mencoder people.
Ah, so those statistics are generated by mplayer, then, not by v4l.
It would also seem that V4L doesn't actually discard any frames...
>> ...blah blah blah about mencoder...
Again, this would be an mplayer/mencoder thing.
I guess I'm just trying to confirm that v4l doesn't try to enforce a
strict NTSC framerate, but just passes all frames on even if they appear
at a slightly different framerate.
Ivan
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