Thanks for reply.
Burkhard Plaum wrote:
Did you make a bitwise comparison of the encoded frames and the original?
I don't make a bitwise comparison (because I don't know how make it).
But I did it:
Original file: in.mpg (AVC mpegts)
Convert in.mpg to h264_lossless.mpg (sample file) with ffmpeg -i in.mpg
-vcodec libx264 -vpre lossless_slow -acodec libmp3lame -ab 256k -threads 3
-r 29.97 -t 10 h264_lossless.mov
ffmpeg -i h264_lossless.mov -target dvd-ntsc h264_lossless_to_dvd.mpg
After:
Convert in.mpg to yuv4mpeg.yuv with mplayer -vo yuv4mpeg -endpos 10
ffmpeg -i yuv4mpeg_lossless.yuv -target dvd-ntsc
yuv4mpeg_lossless_to_dvd.mpg
In result files have same quality (visually)
I conclude that it is better to use lossless codecs(with h264) than
lossless with yuv4mpeg.
h264 lossless file have 26.4MB. Yuv file, with same duration, have 140,4MB
The result dvd file h264 have 34,4MB, and the result dvd file yuv have
32,5MB
