HC & FFMPEG 1080i -> 576i for DVD authoring

[halsboss]

In case you don't visit the HDTV area, this

http://forum.doom9.org/showthread.php?p=1046975#post1046975

does a little test with HC & the latest FFMPEG, for 1080i -> 576i conversion ... for possible DVD authoring.

[halsboss]

mpeg-2 specific - for a quick'n'nasty conversion http://forum.doom9.org/showthread.php?p=1056919#post1056919 shows latest ffmpeg options, and commandline which converts an extracted PAL HDTV interlaced 1080i video stream into a DVD-compatible PAL SD interlaced 576i video stream ready for DVD authoring...

"C:\SOFTWARE\ffmpeg\ffmpeg.exe" -y -i inputfile.mpv -target pal-dvd -ilme -ildct -flags +ildct+ilme -top 1 -sameq -maxrate 9400k -dc 10 -s 720x576 -aspect 16:9 -an outputfile.mpv

which seems close enough for some ordinary conversions.

[halsboss]

No it doesn't, after all.

The ffmpeg user mailing list confirms what I subsequently found out by testing and examining the bitrate in a btrate viewer... ffmpeg produces s bitrate spikes in the resulting output file which go outside the DVD spec.

Back to the ever-trusty HC !