Hallo > > > [export_mpeg2enc.so] cmd=mpeg2enc -v 0 -q 3 -f 5 -4 2 -2 3 -b 2900 -F 4 > > > -n n -V 230 -o "casa".m2v -a 2 > > > [export_mp2enc.so] (44/4096) cmd=mp2enc -v 0 -r 44100 -b 128 -s -o > > > "casa".mpa > > > > Bit rate of 2900 is out of specs for SVCD and may not play well on many > > stand alone players. > Hmmm... > I'm by no means an expert, but i've heard people saying that the > "non-standard" SVCDs will actually play just fine on most standalone > players. > I did a bit of testing myself, and indeed my SVCDs can be played almost > anywhere. If you want to know what others have found out of the DVD Player take al look at: http://www.vcdhelp.com/
> > Also -q 3 is too low a value -- you will most > > certainly get a better output with -q 8 or so. > But isn't "lower" supposed to be "better"? Selvar Nair. Is correct here. The lower the quality factor better, but mpeg2enc needs bandwith to create good quality. If you don't have that bandwith it is better to request a lower quality. > > Anyway, for SVCD use -f 4. > > That will automatically use legal parameters (video rate, buffer size > > etc.. ). See mpeg2enc --help or man mpeg2enc details (note: the man page > > in mjpegtools 1.6.0 has -f 4 wrongly stated as standard VCD) > The thing is, i like to be able to control the length of the resulting > MPEG stream by controlling the bitrate. This way, i can fill up a 700MB > CD with exactly one 30 minutes cassette, and the quality is outstanding. > If i use standard SVCD, the bitrate is lower and of course i get > artifacts, etc. With a VBR Stream you cannot exactly control the length of the stream. If you want a stream with a exact size prediction, you have to use a CBR (Constant BitRate). If you use VBR (Variable BitRate) you can only say that the stream will have a max size, but it is likely that the size is smaler. And MPEG2 is a VBR Stream by default. > > Sometimes I find it useful to denoise the video by piping the > > output of lav2yuv to yuvdenoise -l 1. > Yes, good idea, i'll try that. If you denoise, I hope you also use --interlace-mode|-I 0 because else mpeg2enc will spend time for motion estimation for a interlaced video you don't have any more. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------- This sf.net email is sponsored by: With Great Power, Comes Great Responsibility Learn to use your power at OSDN's High Performance Computing Channel http://hpc.devchannel.org/ _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
