Daala tools

This is a standalone repo that splits out (some of) the tools from Daala.

At the moment, the following tools are split out:

• dump_psnrhvs
• dump_psnr
• dump_ssim�added -p (per-frame parallelism) and -l (max # frames) switch
• dump_fastssim
• png2y4m�added -d and -i switches
• y4m2png

You can find some build instructions in the mu repository.

Copying

All code forked from Daala (viz., code under src/ and include/) is Copyright 2001-2012 Xiph.Org and contributors.

Any other code is © 2016 alfalfa project and contributors.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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