Originally committed as revision 25977 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25976 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 25957 to svn://svn.ffmpeg.org/ffmpeg/trunk

Turn it into 2 macros, and use av_clip_int16() and lrintf().
This matches the int16 to float sample conversion in audioconvert.c.
The regression test output is different due to lrintf() rounding.

Originally committed as revision 25956 to svn://svn.ffmpeg.org/ffmpeg/trunk

Also, use LFG from libavutil instead of random().

Originally committed as revision 25955 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25954 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 25952 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 25950 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 25944 to svn://svn.ffmpeg.org/ffmpeg/trunk

allows playback of files where multiple qdm2 packets have been merged.

Originally committed as revision 25943 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Nolan L nol888 <=> gmail >=< com.

See thread:
Subject: [FFmpeg-devel] [PATCH] Port gradfun to libavfilter (GCI)
Date: Mon, 29 Nov 2010 07:18:14 -0500

Originally committed as revision 25942 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by James Zern, jzern google

Originally committed as revision 25941 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25940 to svn://svn.ffmpeg.org/ffmpeg/trunk

transcoding.

Fix issue #2292.

Patch sponsored by KIM Keep In Mind GmbH, srl.

Originally committed as revision 25939 to svn://svn.ffmpeg.org/ffmpeg/trunk

causing a wrong allocation.

Originally committed as revision 25938 to svn://svn.ffmpeg.org/ffmpeg/trunk