Fixes use of uninitialized data

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also check number of streams and give error message why muxing failed.
This prevents muxing unsupported codec with known and supported tag.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Such level of abstraction is pointless.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes assertion failure

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Memory passed to av_realloc cannot be allocated using memalign.

From realloc(3):

The realloc() function changes the size of the memory block pointed to
by ptr to size bytes. (...) Unless ptr is NULL, it must have been returned
by an earlier call to malloc(), calloc() or realloc().

The issue has been found by debugallocation, a part of google-perftools:
http://code.google.com/p/gperftools/ .
Signed-off-by: Paweł Hajdan, Jr <phajdan@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes out of array read

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes division by zero

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

More speedup and fixes 'may be used uninitialized in this function' warnings
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

speeds up code and allows more simplifications
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes "warning: dc[0..5] may be used uninitialized in this function"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  movenc: Simplify code by using avio_wb24
  bfin: unbreak compilation
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes ticket #1815.

Reviewed-by: Hendrik Leppkes

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

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

Fixes ticket #2204.

Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Memory passed to av_realloc must come from malloc,
calloc or realloc, and not e.g. memalign. realloc(3):

The realloc() function changes the size of the memory block pointed to
by ptr to size bytes. (...) Unless ptr is NULL, it must have been
returned by an earlier call to malloc(), calloc() or realloc().

The issue has been found by debugallocation, a part of google-perftools:
http://code.google.com/p/gperftools/ .

This makes fate pass when using LD_PRELOAD-ed debugallocation.

See also earlier discussion
http://ffmpeg.org/pipermail/ffmpeg-devel/2013-January/137234.htmlSigned-off-by: Paweł Hajdan, Jr <phajdan@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes vlc decoding for hypothetical files that would contain such cases.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Prevents out of array writes

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

The pointer is also initialized to NULL for safety.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Added a missing header file.

* qatar/master:
  vf_delogo: fix copying the input frame.

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

* commit 'f81c37e4':
  vf_delogo: fix an uninitialized read.
  h264: remove obsolete comment.
  mpegvideo: remove some unused variables from Picture.
  utvideoenc/v410enc: do not set AVFrame.reference.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'e6b1c3bb':
  pthread: make ff_thread_release_buffer idempotent.
  mvi: set framerate
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'aec50f79':
  rawdec: use AVPALETTE_SIZE instead of magic constants.
  mimic: remove a pointless cast.
  mdec: return meaningful error codes.

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

* commit 'f713411d':
  mdec: cosmetics, reformat

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

* commit '098eed95':
  mdec: merge mdec_common_init() into decode_init().
  eatgv: use fixed-width types where appropriate.
  x86: Simplify some arch conditionals
  bfin: Separate VP3 initialization code
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'f550583c':
  bfin: update VP3 idct
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

CC:libav-stable@libav.org

CC:libav-stable@libav.org