Prepare for 11_beta1 Release
Merge commit '42604902292ebaba39b13e8efd98419908518019'

* commit '42604902292ebaba39b13e8efd98419908518019':
  Prepare for 11_beta1 Release

Conflicts:
	RELEASE

No change, not merged

Merged-by: Michael Niedermayer <michaelni@gmx.at>
cafdec: check for eof in read_info_chunk()

Fixes Ticket #3864
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Paul B Mahol <onemda@gmail.com>
wvdec: check for eof in wv_read_block_header()

Fixes Ticket #3865
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Paul B Mahol <onemda@gmail.com>
avdevice/v4l2: try to fix build for openbsd

Found-by: carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec: export motion vectors in frame side data on demand

The reasoning behind this addition is that various third party
applications are interested in getting some motion information out of a
video "for free" when it is available.

It was considered to export other information as well (such as the intra
information about the block, or the quantization) but the structure
might have ended up into a half full-generic, half full of codec
specific cruft. If more information is necessary, it should either be
added in the "flags" field of the AVMotionVector structure, or in
another side-data.

This commit also includes an example exporting them in a CSV stream.
avformat/iff: rudimentary support for animations

For now only first frame is decoded.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
avformat/a64: Avoid segfault in a64_write_header() when stream codec is not open

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