configure: Set default HOSTCFLAGS/HOSTCPPFLAGS after compiler detection

This prevents the default HOSTCFLAGS from getting clobbered by flags
passed to configure on the command line.
h264: skip chroma edges at the picture boundary while deblocking 4:4:4

This handles macroblock edges for the chroma components in the same way
as for the luma compoment for 4:4:4 streams. The Spec explicitly states
that the deblocking filter is not applied to edges at the boundary of
the picture.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
bfin: vp3: Mark all binary object sections appropriately

This fixes a leftover from e44d7c659ba56d7efd6de10d5d99a1c44fd997fa.
mpegvideo_enc: Don't call ff_h263dsp_init unconditionally

This fixes builds with e.g. --disable-decoders --disable-encoders
--enable-encoder=mjpeg.

Signed-off-by: Martin Storsjö <martin@martin.st>
rtpdec_asf: Copy the need_parsing field from the chained demuxer

This fixes playback of mp3 streams in rtp/asf. This used to work
until c6f1dc8, but mostly by coincidence.

Signed-off-by: Martin Storsjö <martin@martin.st>