Use the UTF-16 BOM to detect UTF-16 encoding. Convert the file contents
to UTF-8 on the fly using FFTextReader, which acts as converting wrapper
around AVIOContext. It also can work on a static buffer, needed for
format probing. The FFTextReader wrapper now also takes care of skipping
the UTF-8 BOM.

Fix Ticket #3496.

Fixes Ticket3912
Reviewed-by: Benoit Fouet <benoit.fouet@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Benoit Fouet <benoit.fouet@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

We can avoid passing file descriptor fd explicitely.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '21439483':
  Drop unnecessary av_unused attributes.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

* commit '213e6067':
  Replace av_unused attributes by block structures

Conflicts:
	libavcodec/h264_loopfilter.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '096a1d5b':
  rdft: Move some variables into a separate block
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b574e1e9':
  get_bits: Add OPEN_READER macro variant w/o size_plus8

Conflicts:
	libavcodec/get_bits.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

We can avoid passing file descriptor fd explicitely.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

There is no need to pass fd as a second parameter. Additionally remove
unneeded curly braces.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

No functional change in the code.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Previously there was a limit of two cpuflags.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is more portable and avoids warnings with compilers that do not
properly support av_unused.

This avoids an unused variable warning with hardcoded tables.

This avoids a trillion warnings from MSVC.

Create a default grayscale palette for 2 or 4 bpp grayscale tiff, if
there is no palette defined.
Fixes ticket #3915
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

paddq is an SSE2 instruction so it cannot be used for MMX.

This was probably just a typo because the sums are dwords anyway.
Reviewed-by: Pascal Massimino <pascal.massimino@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* commit 'b21e989a':
  ismindex: produce .ismf file

Conflicts:
	tools/ismindex.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Make time duration references consistent, using @ref links, and
eliminate incorrect syntax [-]HH[:MM[:SS[.m...]]].
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Also log an error message in case of invalid packet size.

This is a non-standard file that maps the MSS segment names to offsets
in the ISMV file. This can be used to build a custom MSS streaming
server without splitting the ISMV into separate files.
Signed-off-by: Martin Storsjö <martin@martin.st>

* commit 'd7913bf5':
  changelog: Move Ogg subtypes aliases entry to the correct release

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

Should fix compilation with old Yasm/Nasm versions.
Signed-off-by: James Almer <jamrial@gmail.com>

This makes more sense for future implementations of templates with zmm registers.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

~20% faster than AVX.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

This avoids several failures on fate.ffmpeg.org, and thus makes real
bugs easier to spot
Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This lets the cglobal macro automatically append a suffix to the function name.
This means that INIT_XMM avx must be used rather than INIT_AVX.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

integration by Neil Birkbeck, with help from Vitor Sessak.
core SSE2 loop by Skal (pascal.massimino@gmail.com)
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd9792b77':
  Mark 11 release in the changelog

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

* commit '12f0388f':
  Add release notes for 11.

Conflicts:
	doc/RELEASE_NOTES

Mostly not merged
Merged-by: Michael Niedermayer <michaelni@gmx.at>