This moves the DWT functions from snow.c and dsputil.c to a file of
their own.  A new struct, DWTContext, holds the function pointers
previously part of DSPContext.

Originally committed as revision 22522 to svn://svn.ffmpeg.org/ffmpeg/trunk

huge processing and memory usage overhead for avi files with raw PCM audio.

Originally committed as revision 22521 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22520 to svn://svn.ffmpeg.org/ffmpeg/trunk

The symbol is currently unused, AVERROR(ENOENT) must be used instead.

Originally committed as revision 22519 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22518 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22517 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22516 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22515 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVERROR(ENOMEM) must be used instead, and there are no occurrences of
AVERROR_ENOMEM in the FFmpeg basecode so it can be safely dropped.

Originally committed as revision 22514 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVERROR_EIO for deletion at the next major bump.

Originally committed as revision 22513 to svn://svn.ffmpeg.org/ffmpeg/trunk

avctx->get_buffer() in case of error, rather than AVERROR_UNKNOWN
which is deprecated, and mark AVERROR_UNKNOWN for deletion at the next
major bump.

Originally committed as revision 22512 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22511 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22510 to svn://svn.ffmpeg.org/ffmpeg/trunk

picref.

Originally committed as revision 22509 to svn://svn.ffmpeg.org/ffmpeg/trunk

addition of the AVFilterPicRef.pos field.

Originally committed as revision 22508 to svn://svn.ffmpeg.org/ffmpeg/trunk

again from the filterchain and pass it back to output_picture2().

Originally committed as revision 22507 to svn://svn.ffmpeg.org/ffmpeg/trunk

byte position information, as stored in the pkt.pos, through the
filterchain.

Note that the pos field is added *non* at the end of the
AVFilterPicRef struct, thus breaking ABI compatibility, which is
allowed as the API is still considered non-stable.

Originally committed as revision 22506 to svn://svn.ffmpeg.org/ffmpeg/trunk

choosen between 8 and 32 when the supplied parameter is the string
"random".

This is useful for testing the slice support, but it is not supposed
to be used for other purposes and this interface may change in the
future, thus it is not documented.

The randomization algorithm adopted is the standard Numerical Recipes
LCG.

Originally committed as revision 22505 to svn://svn.ffmpeg.org/ffmpeg/trunk

1.5% faster overall decode on my penryn

Originally committed as revision 22504 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22503 to svn://svn.ffmpeg.org/ffmpeg/trunk

definition.

Originally committed as revision 22502 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavutil/error.h.

Error code definitions and handling code belong to libavutil, where
they can be shared by all the libav* libraries.

See the thread:
Subject: [FFmpeg-devel] [PATCH] Move error codes definitions from lavc to lavu
Date: Sun, 19 Jul 2009 12:09:16 +0200

Originally committed as revision 22501 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22500 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22499 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22498 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22497 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22496 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22495 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22494 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22493 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22492 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22491 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22490 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22489 to svn://svn.ffmpeg.org/ffmpeg/trunk

Mark bktr_init function as av_cold.
Tested to work by Michael Kostylev on the NetBSD FATE box.

Originally committed as revision 22487 to svn://svn.ffmpeg.org/ffmpeg/trunk

This make NetBSD compile out of the box at the cost of a hack, but a
locally contained one that is preferable to the one used in the wild.
Currently the NetBSD FATE box adds -D_NETBSD_SOURCE to CPPFLAGS to work
around broken system headers. Since it is unlikely for NetBSD to fix their
headers, it is better to use a standard flag instead of a system-specific one.

As a sideeffect, this allows getting rid of a local _NETBSD_SOURCE definition.

Originally committed as revision 22486 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22485 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22484 to svn://svn.ffmpeg.org/ffmpeg/trunk

Previously, the area of a lost slice would be left at the slice number of the previous
frame which could occasionally match the number of the next slice and thus a non existing
slice could have been used for prediction leading to additional decoding errors in otherwise
undamaged slices.

Originally committed as revision 22483 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22482 to svn://svn.ffmpeg.org/ffmpeg/trunk