considering my source https://dl.dropboxusercontent.com/u/39871584/C0020.mxf
I use ffmpeg to:
ffmpeg -i c0020.mxf -vcodec mjpeg -pix_fmt yuv422p -q:v 0 -an output.avi
convert .mxf in mjpeg
But when I try to open it in virtualdub I get this error:
Attachment 24636 (click for full size)
multiple chroma blocks not supported.
Can I enhance the encoding in FFMPEG so virtualdub can open output.avi correctly, of course keeping the mjpeg encoding ?
ps. to decompress, in virtualdub, I use the internal decompressor (option, pref., avi-->prefer internal decoders)
please I like to use internal mjpeg decompressor, not other decompressor
+ Reply to Thread
Results 1 to 5 of 5
Why do you want to use internal mjpeg decoder ?
mmmmmmmmmmmmmmmmmmmmmmmmmmmm interesting. Absolute interesting.
the -q:v 1 -qmin 1 -qmax 1 to increase quality.
However it's strange that virtualdub can not decode with internal mjpeg decoder, wich means "multiple chroma blocks not supported" ?
In effects does not seems a problem of 422, because ohters encoding (eg picvideo) in 422 are well opened by virtualdub. This problem is specific of the ffmpeg mjpeg. I have try to encode in mjpeg with virtualdub using the FFdshow mjpg and the risults is the same of the ffmpeg encoding ... what a terrible thing