Merge remote branch 'qatar/master'

Merge remote branch 'qatar/master'

* qatar/master:
LOTS of duplicates ...
  avio: Fix the deprecated fallback URL-prefixed open flags
  avoid duplicate -lm in .pc files
  mpeg12: terminate mpeg2_video_profiles arrays
  network: Check POLLERR and POLLHUP in ff_network_wait_fd
  mpegtsenc: make PMT PID really start on pmt_start_pid
  nut format: support PIX_FMT_BGR48LE and PIX_FMT_BGR48BE
  rawvideo codec: support PIX_FMT_BGR48LE and PIX_FMT_BGR48BE
  hflip: make the filter accept PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
  crop: make the filter accept PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
  libswcale: PIX_FMT_BGR48LE and PIX_FMT_BGR48BE scaler implementation

Conflicts:
	configure
	libswscale/swscale.h
	tests/ref/lavf/ts

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