It still fails pseudo-randomly.

This reverts commit ec468212.

Conflicts:

	modules/gui/qt4/qt4.cpp
	modules/video_output/msw/events_vo.c
	modules/video_output/x11/xcommon.c
	modules/video_output/xcb/common.c
	modules/video_output/xcb/window.c
	src/video_output/window.c

* modules/codec/cc.h (cc_Extract): Merge repeated field (3) with first
field (1).  Use the TOP_FIRST_FIELD in the determination of field.
* modules/codec/libmpeg2.c (DecodeBlock): Pass whether "top field first"
* modules/packetizer/mpegvideo.c (ParseMPEGBlock): Likewise.
Signed-off-by: Laurent Aimar <fenrir@videolan.org>

It was broken as soon as a linked list of buffers was pushed.

 It factorizes the common code and implements all conversions between s8, u8,
s16l/b, u16l/b, s24l/b, s32l/b and fl32 (close #3162).
 In cases a direct conversion is not implemented, s16 is used as the middle
format.
 The following direct conversions have been removed: fl32->s24, fl32->u16, u16->fl32.

instead of three submodule and no main module!

A new playlist item flag stops playlist after the item gets subitems.
The flag is set only upon user request to play an item from Qt views and only
if he does so in playlist "tree mode" not "one level".
Behavior on items played when playlist advances is unaffected.
This allows for comfortable "browsing" of playlist in tree mode, in particular
when using the Qt interface's icon view.

- When input changes, update visible item after currentItem has been set.
- Check if item is current when adding it.