Original code comes from:
commit eb4825b5
Author: Loren Merritt <lorenm@u.washington.edu>
Date:   Thu Aug 10 19:06:25 2006 +0000

    sse and 3dnow implementations of float->int conversion and mdct windowing.
    15% faster vorbis.

and

commit 0bde73d9
Author: Michael Niedermayer <michaelni@gmx.at>
Date:   Tue May 17 19:02:43 2005 +0000

    Vorbis decoder by (Balatoni Denes | dbalatoni programozo hu)
Reviewed-by: NPaul B Mahol <onemda@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

The attribution was removed by libav while moving the code to libavutil

The original code is from
commit eb4825b5
Author: Loren Merritt <lorenm@u.washington.edu>
Date:   Thu Aug 10 19:06:25 2006 +0000

    sse and 3dnow implementations of float->int conversion and mdct windowing.
    15% faster vorbis.

and

commit 06972056
Author: Loren Merritt <lorenm@u.washington.edu>
Date:   Fri Aug 11 18:19:37 2006 +0000

    vorbis simd tweaks
Reviewed-by: NPaul B Mahol <onemda@gmail.com>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

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

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

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

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

With complex filters, an output can come from any input,
or several inputs, including inputs of a different type.
Copying the codec parameters from the first input with
the same type does not make any sense.

This does not change anything for simple 1->1 filters,
as source_index is set in that case.

With complex filter graphs, it can end up accessed
without having been set.

This frame rate is more reliable than the one copied
from the input stream, so it is used in priority.

The arguments now use the key=value syntax.

The current flat arguments syntax is not easily extensible
due to sws_param possibly containing commas.
This is also consistent with abuffersrc.

This should fix the fate failure
http://fate.ffmpeg.org/log.cgi?time=20120609002213&log=compile&slot=x86_64-archlinux-gcc-enablesharedSigned-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

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

* cus/stable:
  ffplay: reset AVFrame to defaults before decoding each new frame.
  ffplay: check return code of avcodec_decode_video2()
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

* qatar/master:
  float_dsp: ppc: add a separate header for Altivec function prototypes
  ARM: fix float_dsp breakage from d5a7229b
  Add a float DSP framework to libavutil
  PPC: Move types_altivec.h and util_altivec.h from libavcodec to libavutil
  ARM: Move asm.S from libavcodec to libavutil
  vc1dsp: mark put/avg_vc1_mspel_mc() always_inline
Merged-by: NMichael Niedermayer <michaelni@gmx.at>

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

2.5 times faster than the generic code
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

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

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

This fixes: ffplay -f lavfi -i cellauto
This was a regression since factorizing the filter code with ffmpeg.
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>
Signed-off-by: NMarton Balint <cus@passwd.hu>

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>
Signed-off-by: NMarton Balint <cus@passwd.hu>

Also include config.h so that HAVE_ALTIVEC will be defined.
Fixes compilation on PPC with Altivec enabled.

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

Move vector_fmul() from DSPContext to AVFloatDSPContext.

This will allow for easier implementation of Altivec functions in libraries
other than libavcodec.

This will allow for easier implementation of ARM-optimized functions in
libraries other than libavcodec.

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

This message is printed whenever the RAWVIDEO codec is used, whether the
output file contains any frames or not. Test command:
./ffmpeg -i infile.y4m outfile.y4m
Signed-off-by: NMike Scheutzow <mjs973@optonline.net>
Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

Reverting "Fix" because it disables amrwb decoder.

This reverts commit e11020a1.

Found and analysed by trac user Jamal.

Fixes the remaining part of ticket #1428.

Found, analysed and tested by trac user Jamal.

Fixes part of ticket #1428.

Found, analysed and tested by trac user Jamal.

Fixes part of ticket #1428.