mpeg12enc: always write closed gops for intra only outputs

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Marton Balint <cus@passwd.hu>
mpeg12enc: always set closed gop flag on the first gop

Improves compatibility with XDCAM HD formats. It has been set for a long time
in ffmbc.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Marton Balint <cus@passwd.hu>
VP3: K&R formatting cosmetics
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  VP3: K&R formatting cosmetics

Conflicts:
	libavcodec/vp3.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'cus/stable'

* cus/stable:
  mpeg12enc: always set closed gop flag on the first gop
  mpeg12enc: always write closed gops for intra only outputs

Merged-by: Michael Niedermayer <michaelni@gmx.at>