Speed: from 3.9x to 9.6x speed improvement over C, and some small
(up to 15%) speed improvements over existing MMX code (particularly
for bigger filters).

fixes make checkheaders

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

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

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Move shared tables to a separate file as well.

This prevents some crashes when corrupted bitstream reports e.g. P-type
slice in I-frame. Official RealVideo decoder demands all slices to be
of the same type too.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Some fixes by Stefano.
For detailed authorship see SOC repo
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Code mostly copied from libx264 wrapper.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Also trim some redundant stream specifiers descriptions.

They are misleading and carry no useful information.

Add a per-stream -filter option, make -vf an alias for -filter:v. Move
vfilters to the options context.

It's redundant -- -flags +psnr does the same thing.

It's only shadowing the AVOption with the same name.

Also remove redundant -pix_fmt list syntax, it's inconsistent and  only
makes the code more complicated. -pix_fmts should be enough for
everyone.