On Thu, Mar 03, 2005 at 10:09:05PM +0100, Lehmeier Michael wrote: > Hi! > > I recorded a nature documentary on television. > ... > > The result of the reencoding was bigger than the original 720x576!
Most likely due to noise and encoding/decoding artifacts. > Am I doing something really wrong or should I just stop encoding > interlaced? > > Here is my batch file: > > #! /bin/sh > mknod stream.yuv p > mknod stream.wav p > QUANT=8 > INFILE=1.mpg > OUTFILE=1out.mpg > mplayer -ao pcm -aofile stream.wav -vo yuv4mpeg -vf scale=352:576:1 > $INFILE & > cat stream.wav | nice mp2enc -s -r 48000 -b 224 -o audio.m2a & > cat stream.yuv | nice mpeg2enc -f 8 -q $QUANT -o video.m2v > sleep 2 > mplex -o $OUTFILE -f 8 audio.m2a video.m2v You might find that if you y4mscaler to scale the video that you'll reduce the bitrate. You may also find that by applying one or more of the denoise filters, that you will substantially reduce the bit rate. You also did not adjust the defaults you receive from format #8, except for quantization level. You may find that tweaking some of the encoding settings away from the defaults will help you to further shrink the size of the result. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
