>transcode -i ${VIDEO} -y ffmpeg --export_prof dvd-ntsc \
> --import_asr 1 -Y -88,0,-88,0 -b224 -N 0x2000 -m dvd.ac3 \
> -o dvd
[...]
>[transcode] V: import frame | 720x304 2.37:1 encoded @ 1:1
>XXX: zoom=yes pre_clip=yes
>[transcode] V: pre clip frame | 720x228 (38,0,38,0)
>[transcode] V: zoom | 720x480 1.12:1 (Lanczos3)
>[transcode] V: clip frame (->) | 720x656
What's going on here is that the profile code is looking at the
input and output frame sizes and aspect ratios and choosing "proper"
clipping and zoom values; unfortunately, the profile code in 1.0 is
rather broken and doesn't take into account any additional clipping
options you give. We're working on a better system for 1.1, but in the
meantime you'll need to avoid using --export_prof if you also give a -Y
option. (Alternatively, you can use -Z and give the input frame size as
the zoom size, but since this still causes a zoom operation to occur,
the encoding process will be slowed down.) You should also give the
same value for --import_asr as you use for the export aspect ratio
(default 2, for a 4:3 ratio, but you should use --export_asr explicitly)
to avoid the automatic clipping (and apparently to avoid a segfault, to
judge from your second log).
--Andrew Church
[EMAIL PROTECTED]
http://achurch.org/
