doc: Add more information in the README

And convert it to Markdown.
lavr: Update the planar check in ff_audio_convert

Leftover from fbc0b8659967ea54a8472b5f795270d38bb085dd.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
mxf: Add UID print helpers

And use it to print non-parsed ULs.
avcodec/lcldec: fix decoding of YUV444 sample

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
lavf/http: fix cookie parsing.

The current code would use any unknown attribute-value pair
as the cookie value.
RFC 6265 states that the first key-value pair is the actual
cookie, and the attribute-value pairs only start after.

With the current code:
Set-Cookie: test=good_value; path=/; dummy=42
gives this:
Cookie: dummy=42
instead of this with the new code:
Cookie: test=good_value
lavf/http: remove special case for cookies attributes.

With the previous change, unknown attributes are all ignored,
as specified by the RFC.
Merge remote-tracking branch 'cigaes/master'

* cigaes/master:
  lavf/http: remove special case for cookies attributes.
  lavf/http: fix cookie parsing.

Reviewed-by: Ronald S. Bultje
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '96ce6d6f119a16e489941c629a2805204322b717'

* commit '96ce6d6f119a16e489941c629a2805204322b717':
  doc: Add more information in the README

Conflicts:
	README.md

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '11db644a8e54f02e54d2eaad343a87fcb697c15e'

* commit '11db644a8e54f02e54d2eaad343a87fcb697c15e':
  lavr: Update the planar check in ff_audio_convert

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '304089aca7d238ae184e09993b5c737aa22e2c2c'

* commit '304089aca7d238ae184e09993b5c737aa22e2c2c':
  mxf: Add UID print helpers

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