This reverts commit 8725da49.

Necerrary to revert 82992604.

Will help factorization with the pending -af patch, and add some checks
missing in the original code.

It was deprecated and removed after the recent 2->3 major bump.

It was deprecated since a long time and removed after the 2->3 major
bump.

Reviewed-by: Paul B Mahol

Reviewed-by: Paul B Mahol

* qatar/master:
  log: Include io.h on windows
  lavr: x86: merge some branches
  x86: cpu: whitespace (mostly) cosmetics
  x86: fft: win64: fix stack alignment for memcpy() call

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

Fixes Ticket1466
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Prevents out of array write.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes Ticket1397
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

Simplify code.

Also show them in a more parsable/consistent fashion.

Group lavfi headers together, slightly improve readability.

This is required for isatty, which exists on MSVC and is found by
configure, but is provided by io.h instead of unistd.h.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This adds whitespace around operators, aligns line continuation
backslashes, and breaks long lines.  Also fixes an ifdef halfway
through a statement.  The one line of duplication this saved is
not worth the ugliness.
Signed-off-by: Mans Rullgard <mans@mansr.com>

* qatar/master:
  wtv: Check the return value from gmtime
  x86: fft: convert sse inline asm to yasm
  x86: place some inline asm under #if HAVE_INLINE_ASM

Conflicts:
	libavcodec/x86/fft_sse.c
	libavformat/wtv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

On MSVC, gmtime returns NULL for values outside of their supported
range (and these show up in our fate test). This doesn't seem
to affect the actual fate test result.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

Deprecate functions:
avfilter_fill_frame_from_buffer_ref
avfilter_fill_frame_from_audio_buffer_ref
avfilter_fill_frame_from_video_buffer_ref

and schedule to drop them at the next API major bump.

The function avfilter_copy_buf_props() should be used instead.

libavfilter API was designed in order to be clarly distinguished from the
libavcodec API, including avcodec.h in avfilter.h is not going to help to
stick to this principle.

The inclusion of libavutil/audioconvert.h in many files was required
because avcodec.h includes audioconvert.h.

libavfilter/avcodec.h is where the lavc/lavfi interface should be
entirely placed.

version.h seems the right place for FF_API_ definitions.

this matches sox and should fix ticket1119
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Hardly anyone would want 8bit today, 16bit is a much more reasonable
default.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

* qatar/master:
  log: Only include unistd.h if configure found it
  ape: create audio stream before reading tags.
  mov: make a length variable larger.
  image2: Add "start_number" private option to the demuxer
  image2: Add "start_number" private option to the muxer
  avconv: remove a forgotten debugging printf.
  avconv: use more descriptive names for hardcoded filters.
  avconv: remove redundant handling of async.
  doc/filters: fix typo.
  h264: use asm cabac reader under a generic condition

Conflicts:
	ffmpeg.c
	libavformat/img2dec.c
	libavformat/img2enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

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