Based on a somewhat similar idea in FFmpeg's swscale copy.

We operated on 31-bits, but with e.g. lanczos scaling, values can
add up to beyond 0x80000000, thus leading to output of zeroes. Drop
one bit of precision fixes this.

We accessed the alpha array even it wasn't used and didn't
exist, hence leading to a NULL pointer segfault.

When using e.g. lanczos scaling, values can drop below 0, so they
should never be unsigned.

We would use the second half of the U plane buffer, rather than the
V plane buffer, to output the V plane pixels.

It's required to be non-zero since
cc58300e30

There's no point in keeping them separate.

Those are reserved for the libs.

They were replaced by (de)muxer private options.

Deprecate AVFormatContext.loop_output.

Deprecate AVFormatContext.loop_input.

That is, unless the caller explicitly asks for them.

Prevents conflict between e.g. the 'loop' option in img2 demuxer and
'loop' flag in AVCodecContext.

Signed-off-by: Mans Rullgard <mans@mansr.com>

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

Now the bin directory only contains those DLLs that are actually used.

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

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

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

The build system doesn't use lib.exe any longer, and therefore this
can be simplified.

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

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

Signed-off-by: Mans Rullgard <mans@mansr.com>

* qatar/master:
  build: clean up library installation rules
  vf_drawtext: Remove some write-only variables.
  libgsm: Drop const qualifier to silence compiler warning.
  docs: Remove needless configure options
  docs: Don't recommend adding --enable-memalign-hack
  libvo-amrwbenc: Add braces to shut up gcc warning.
  adts: Fix PCE copying.

Conflicts:
	configure
	doc/general.texi
	subdir.mak

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

libavcodec/libschroedingerdec.c:211:23: warning: variable 'format' set but not used

The copy regression test script is unused, bash-specific and did
not even work properly when it was originally committed.

Signed-off-by: Mans Rullgard <mans@mansr.com>

libavfilter/vf_drawtext.c:427:22: warning: variable 'dst_pixel' set but not used
libavfilter/vf_drawtext.c:463:22: warning: variable 'dst_pixel' set but not used

libavcodec/libgsm.c:148: warning: passing argument 2 of ‘gsm_decode’ discards qualifiers from pointer target type
/usr/include/gsm/gsm.h:68: note: expected ‘gsm_byte *’ but argument is of type ‘const uint8_t *’

Specifying --enable-static --disable-shared isn't necessary, these
are the defaults.

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

It is enabled automatically when required nowadays.

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

libavcodec/libvo-amrwbenc.c:37:5: warning: missing braces around initializer

Parse the extension flag bit when reading the MPEG4 AudioSpecificConfig.

This has nothing to do with SBR/PS contradictory to what was noted when it was removed.

Make it clear that open_inputs/open_outputs are updated only if non-NULL.

Create open_inputs and open_outputs structs if they are not provided by
the user, and free them before exit.

In particular, fix NULL pointer dereference and crash, in case the
passed open_inputs/outputs is NULL and the parsing failed.

* qatar/master:
  ffserver: remove unused variable.
  Remove unused and outdated TODO file.
  gitignore: Drop individual .d ignore; it is already covered by a wildcard.
  lavf: deprecate AVStream.quality.
  bink: pass Bink version to audio decoder through extradata instead of codec_tag.
  libpostproc: Remove disabled code.
  flashsv: improve some comments and fix some wrong ones
  flashsv: Eliminate redundant variable indirection.
  flashsv: set reference frame type to full frame
  flashsv: replace bitstream description by a link to the specification
  flashsv: convert a debug av_log into av_dlog
  flashsv: simplify condition
  flashsv: return more meaningful error values
  flashsv: cosmetics: break some overly long lines
  flashsv: cosmetics: drop some unnecessary parentheses
  swscale: amend documentation to mention use of native depth for scaling.
  eval: add missing comma to tests.
  eval: fix memleak.
  H.264: make loopfilter bS const where applicable

Conflicts:
	libavcodec/binkaudio.c
	libavformat/bink.c

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

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

Code would allocate a new context but forget to assign it
to the pointer actually passed to avformat_open_input,
potentially causing a crash.
Even if it was initialized it would cause a memleak.
This caused crashes with e.g. mpd, see also
http://bugs.gentoo.org/show_bug.cgi?id=373423

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>