[vlc] Re: vlc 0.8.1, Unichrome Pro, no video

[Dermot McGahon]

On Tue, 31 May 2005 23:51:51 +0100, MagicITX <magicitx at gmail.com> wrote:

>> > > I have a VIA EPIA SP13000 motherboard with Gentoo Linux 2.6.11, XOrg
>> > > 6.8.2, and vlc 0.8.1.  The SP13000 has the new CN400 north bridge

>     Number of image formats: 3
>       id: 0x32595559 (YUY2)
>         guid: 59555932-0000-0010-8000-00aa00389b71
>         bits per pixel: 16
>         number of planes: 1
>         type: YUV (packed)
>       id: 0x32315659 (YV12)
>         guid: 59563132-0000-0010-8000-00aa00389b71
>         bits per pixel: 12
>         number of planes: 3
>         type: YUV (planar)
>       id: 0x434d5658 (XVMC)
>         guid: 56494100-0000-0010-8000-00aa00389b71
>         bits per pixel: 12
>         number of planes: 1
>         type: YUV (planar)
>

> [00000259] libmpeg2 decoder debug: 720x480, aspect 768000, 29.971 fps
> [00000259] main decoder debug: no usable vout present, spawning one
> [00000261] main video output debug: looking for video output module
> [00000261] main video output debug: probing 5 candidates
> [00000261] xvideo video output debug: forcing chroma 0x32595559 (YUY2)
> [00000261] xvideo video output debug: adaptor 0, port 64, format
> 0x32595559 (YUY2) packed
> [00000191] main module debug: using video output module "xvideo"
> [00000261] main video output debug: waiting for thread completion
> [00000261] main video output debug: got 8 direct buffer(s)
> [00000261] main video output debug: picture in 720x480, chroma
> 0x30323449 (I420), aspect ratio 16:9
> [00000261] main video output debug: picture out 720x480, chroma
> 0x32595559 (YUY2), aspect ratio 16:9
> [00000261] main video output debug: looking for chroma module
> [00000261] main video output debug: probing 9 candidates
> [00000009] main module debug: using chroma module "i420_yuy2_mmx"
> [00000261] main video output debug: indirect render, mapping render
> pictures 0-7 to system pictures 8-15
> [00000261] main video output debug: thread 98311 (video output)
> created at priority 0 (src/video_output/video_output.c:443)

> No accelerated IMDCT transform found

I think this message comes from libmpeg2, but I don't know if it is
a problem or not.

First thing to try is vlc -V x11 to determine if the problem is with
xvideo. Also try mplayer and xine forcing them to xvideo. VLC defaults
to xvideo. mplayer defaults to x11 but can be changed with -vo xv (use
-vo help to list possible video outputs).

Next thing to try is --xvideo-chroma yv12. Not sure that will work, but
worth worth a try.

There was an xvideo related bug with the CLE266 h/w a while back.



Dermot.
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