hlsenc: correctly report target duration
oggdec: K&R cosmetic formatting
oggdec: check memory allocation
configure: cosmetics: Separate hwaccel dependencies from decoders/encoders

Also move mpegvideo_select statement to the correct position.
Return proper error code after av_log_ask_for_sample()
avfilter: Compile FIFO filters unconditionally

Building libavfilter without that functionality makes little sense.
lavc: Correct the description of pkt_dts

The description as updated in 6e5c44b0f made it sound like it is
handled exactly like the pts, which it is not. Clarify that it
is the packet that triggered returning the frame instead of just
the last avpacket (in case of frame threading, it won't be the
dts of the last packet).

Signed-off-by: Martin Storsjö <martin@martin.st>
hlsenc: Allocate enough space for the pattern string

If s->filename doesn't contain any period/filename extension to strip
away, the buffer will be too small to fit both strings. This isn't
any buffer overflow since the concatenation uses av_strlcat with
the right buffer size.

Signed-off-by: Martin Storsjö <martin@martin.st>
hlsenc: Don't duplicate a string constant

Signed-off-by: Martin Storsjö <martin@martin.st>
bmp: cosmetics, reformat
c93: set palette_has_changed.
yop: simplify/sanitize the decoding loop

Do not overwrite linesize set by get_buffer().

The last frame in the FATE test is not decoded anymore, since the file
is cut and a part of it is missing.
zmbv: remove some pointless comments and empty lines
zerocodec: remove an unused variable.
ansi: do not depend on get_buffer() initializing the frame.

The background changes from 128 (used by the default/cmdutils
get_buffer()) to 0. This looks more correct.
xan: remove a trivially true if().

This function used to be shared with the xxan decoder, but that is not
true anymore.
wnv1: cosmetics, reformat
Merge commit 'f5f1cf52240759208b42477e2157a7b4409ade10'

* commit 'f5f1cf52240759208b42477e2157a7b4409ade10':
  oggdec: K&R cosmetic formatting
  hlsenc: correctly report target duration

Conflicts:
	libavformat/oggdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'f3298f12997eb4b7ad203766f768f92e3dd72a2a'

* commit 'f3298f12997eb4b7ad203766f768f92e3dd72a2a':
  Return proper error code after av_log_ask_for_sample()
  configure: cosmetics: Separate hwaccel dependencies from decoders/encoders
  oggdec: check memory allocation

Conflicts:
	configure
	libavcodec/pictordec.c
	libavformat/anm.c
	libavformat/oggdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '3193b13aa1e271f6d2dd68de67d448c08aef3c00'

* commit '3193b13aa1e271f6d2dd68de67d448c08aef3c00':
  hlsenc: Allocate enough space for the pattern string
  lavc: Correct the description of pkt_dts
  avfilter: Compile FIFO filters unconditionally

Conflicts:
	libavcodec/avcodec.h
	libavfilter/Makefile
	libavfilter/allfilters.c

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