what are nput chroma formats for v4l ?

[dufour.emmanuel]

Can somebody confirm if the input chroma format for v4l means the way the pictures have been sampled: YUV422, YUV420, RGB.... ?

I'm also looking for the list of all strings available to be set in
--v4l-chroma <string> option ? I did'nt found them anywhere.

Thanks.


Emmanuel DUFOUR.

[The DJ]

correct chroma is YUV RGB etc.

don't know them. probably all that v4l outputs in and vlc can understand would be a correct chroma setting.
However this will vary per dshow product i guess.

[dufour.emmanuel]

I was asking this question because i use the composite input of a tuner card as an input stream for vlc and i get a very bad video:
- in PAL mode, i see a good quality but black and white display
- in SECAM mode, i have bad quality display like a mixing of red colored pictures and snow !

I was wondering if the input chroma format was bad, i.e. vlc was trying to display YUV pictures as RGB or something like that...

Someone has an other idea ?

Emmanuel DUFOUR.