need for 1 more extra byte.

* Checking whether the to be allocated size is larger than INT_MAX,
doesn't assure that size+16 bytes for the MEMALIGN_HACK isn't larger
than INT_MAX.

* malloc might return NULL. Checking for it before using that pointer
seems like a good idea.
Patch by Herve W. H PPP O PPP W PPP aka PPP V+ffmpeg AH gmail PPP com
Original thread:
Date: Jun 29, 2006 1:21 PM
Subject: [Ffmpeg-devel] [PATCH] minor improvements to libavcodec/mem.c

Originally committed as revision 5559 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Diego 'Flameeyes' Petteno flameeyes AH gentoo PP org
Original thread:
Date: Jun 30, 2006 1:16 AM
Subject: [Ffmpeg-devel] [PATCH] Disable w53 and w97 cmp methods when snow encoder is disabled

Originally committed as revision 5558 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5555 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5554 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5553 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5552 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Reimar Doeffinger.

Originally committed as revision 5544 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5543 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5542 to svn://svn.ffmpeg.org/ffmpeg/trunk

1) search for optimal rice parameters and partition order. i also
modified the stereo method estimation to use this to calculate estimated
bit count instead of using just the pure sums.

2) search for the best fixed prediction order

3) constant subframe mode (good for encoding silence)

Note that the regression test for the decoded wav file also changed.
This is due to FFmpeg's FLAC decoder truncating the file, which it did
before anyway...just at a different cutoff point.  The generated FLAC
files are still 100% lossless.

With this update, FFmpeg's FLAC encoder has speed and compression
somewhere between "flac -1" and "flac -2".  On my machine, it's about
15% faster than "flac -2", and about 10% slower than "flac -1".  The
encoding parameters are identical to "flac -2" (fixed predictors, 1152
blocksize, partition order 0 to 3).

Originally committed as revision 5536 to svn://svn.ffmpeg.org/ffmpeg/trunk

Added loop filtering as ersatz for overlap filter (improves picture quality for coarse quantization).

Originally committed as revision 5535 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5534 to svn://svn.ffmpeg.org/ffmpeg/trunk

Does not make a difference with any of my samples, but current
code does not make much sense.

Originally committed as revision 5533 to svn://svn.ffmpeg.org/ffmpeg/trunk

http://www.missouri.edu/~bah347/gprime/nintendothemesacappellax.wmv

Originally committed as revision 5532 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5530 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5529 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5528 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5527 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5526 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5518 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5516 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5514 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5512 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5507 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5504 to svn://svn.ffmpeg.org/ffmpeg/trunk

Note: If this is useful I'll put it in version.sh/version.h.

Originally committed as revision 5503 to svn://svn.ffmpeg.org/ffmpeg/trunk

based on a patch by Ismail Dönmez ismail$$at$$pardus$$dot$$org$$dot$$tr

Originally committed as revision 5502 to svn://svn.ffmpeg.org/ffmpeg/trunk

outside their declaring source file and which have no corresponding prototype.
patch by Stefan Huehner stefan^^@^^huehner^^.^^org

Originally committed as revision 5497 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5493 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5489 to svn://svn.ffmpeg.org/ffmpeg/trunk

have room for such a frame.  A frame that large seems unlikely in a valid
file, but leaving room for it spares us the need to check it elsewhere.
Moving the buffer to the end of the struct made debugging this easier.

Originally committed as revision 5487 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5479 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5469 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5467 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5462 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5460 to svn://svn.ffmpeg.org/ffmpeg/trunk

this is usefull for filters which need ME/MC

Originally committed as revision 5456 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5452 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5451 to svn://svn.ffmpeg.org/ffmpeg/trunk

user-tunable.

Originally committed as revision 5450 to svn://svn.ffmpeg.org/ffmpeg/trunk