lavu/opencl: apply misc cosmetics fixes

Split long lines, reindent code, add missing spaces between operators,
remove possibly confusing comment from av_opencl_buffer_read_image()
doxy, and use designated initializers for openclutils_class.
lavu/opencl: use consistent inclusion header guard name
ffplay: use seek per time for ogg by default

Fixes Ticket2383

Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
cavs: fix "warning: initialization discards const qualifier from pointer target type"

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libmp3lame: allow joint stereo to be disabled

Signed-off-by: Paul B Mahol <onemda@gmail.com>
dsputil: Fix "warning: initialization discards const qualifier from pointer target type"

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
deshake opencl based on comments on 20130402 3rd

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg: Fix forcing of the framerate for stream copy on input

Fixes Ticket2211

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
lavfi: rename decimate to mpdecimate.

The next commit will introduce a proper decimation filter to be used
along with the field matching filter. To avoid confusion with this
filter which has currently a very limited usage (and will not work
properly with the fieldmatching filter), the new decimation filter will
take the decimate name, and this filter is renamed to mpdecimate.

TODO: bump minor
lavfi/WIP: port IVTC filters from vapoursynth.

TODO
 - complete documentation
 - version bumps
 - Changelog