id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
1682	DVD '-target' option affects video filters	intracube		"Trying to convert an interlaced video which isn't a valid DVD resolution (such as 1920x1080i) to either 720x576@50i or 720x576@25p DVD video using '-target' stops video filters from working properly.

The -target option looks like it's re-scaling the video *before* the -vf video filter chain. This messes up the field interleaving and stops de-interlacers like yadif from working.

Encoding without using '-target' works as expected.

Examples:
**This creates badly de-interlaced video**:
ffmpeg -i 1080i.MTS -vf yadif=0,scale=720:576 -r 25 -target pal-dvd -aspect 16:9 output1.mpg
(I can paste console output if necessary - but I could see no errors there)

This creates clean de-interlaced h264 video:
ffmpeg -i 1080i.MTS -vf yadif=0,scale=720:576 -r 25 -c:v libx264 -crf 18 -preset fast -c:a ac3 -ac 2 -b:a 224k -aspect 16:9 output2.mp4

This creates clean de-interlaced mpeg2 video:
ffmpeg -i 1080i.MTS -vf yadif=0,scale=720:576 -r 25 -c:v mpeg2video -b 8000k -c:a ac3 -ac 2 -b:a 224k -aspect 16:9 output3.mpg
- but this isn't compatible with dvdauthor.
dvdauthor errors:
WARN: Skipping sector, waiting for first VOBU...
WARN: Skipping sector, waiting for first VOBU...
WARN: Skipping sector, waiting for first VOBU...
...
ERR: SCR moves backwards, remultiplex input: 4563416160 < 4563429486

Repeatable:
Always.

Ffmpeg version:
ffmpeg version N-43891-g65b552c Copyright (c) 2000-2012 the FFmpeg developers
  built on Aug 25 2012 15:54:15 with gcc 4.6 (SUSE Linux)
  configuration: --prefix=/home/compile/ffmpeg --bindir=/home/compile/ffmpeg/bin --datadir=/home/compile/ffmpeg/share/ffmpeg --libdir=/home/compile/ffmpeg/lib --shlibdir=/home/compile/ffmpeg/lib --incdir=/home/compile/ffmpeg/include --mandir=/home/compile/ffmpeg/share.man --enable-avresample --enable-x11grab --enable-libdc1394 --enable-libfaac --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-gpl --enable-nonfree
  libavutil      51. 70.100 / 51. 70.100
  libavcodec     54. 54.100 / 54. 54.100
  libavformat    54. 25.104 / 54. 25.104
  libavdevice    54.  2.100 / 54.  2.100
  libavfilter     3. 13.101 /  3. 13.101
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100"	defect	closed	normal	undetermined	git-master	invalid					0	0