Hallo > >I am trying to create an interlaced MPEG2 stream using mpeg2enc, but > >mpeg2enc warns me that I am feeding it progressive video and the chroma of > >the output is all messed up. It says: > > > >++ WARN: [mpeg2enc] Interlaced encoding selected with progressive input! > >++ WARN: [mpeg2enc] (This will damage the chroma channels.) > > > >I had to use the -I2 flag to tell mpeg2enc to create a interlaced > >output, because the input is interlaced video as well. mpeg2enc If the stream seems to be tagged as not interlaced you can change the header with yuvcorrect -T INTERLACED_TOP_FIRST/INTERLACED_BOTTOM_FIRST.....
Which command did you use for encoding the video ? > If your original source is indeed MJPEG encoded PAL video captured from TV, > then it *should* be an interlaced 4:2:2 stream. The question then becomes, > just what is mplayer doing to convert it to 4:2:0? Perhaps the header > that mplayer produces is wrong; perhaps mplayer is deinterlacing, and > the header is correct; perhaps mplayer is just dropping chroma scanlines > and thus hopelessly (albeit subtly) mangling the stream. I do not think that the file is a mjpeg encoded AVI, I think it is just the AVI container with a other video format. (fourcc code, some people like and some don't). auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
