Increase readability and robustness, as the test result is not going
to differ if the order of the pixfmts codes changes.

Originally committed as revision 24665 to svn://svn.ffmpeg.org/ffmpeg/trunk

inter-frame behaviour unchanged.

Originally committed as revision 24664 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24663 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24662 to svn://svn.ffmpeg.org/ffmpeg/trunk

/**\u2264 => /**<

Originally committed as revision 24661 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24660 to svn://svn.ffmpeg.org/ffmpeg/trunk

~1.5% faster decode_block_coeffs

Originally committed as revision 24659 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24658 to svn://svn.ffmpeg.org/ffmpeg/trunk

The corresponding lavfi-pixfmts BE tests are not yet added, as there
are some bugs in the scaler (scaling rgba, argb, bgra, abgr, yuva420p)
which result in differences with the LE reference, and I cannot
visually check the generated files on BE.

Originally committed as revision 24657 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24656 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24655 to svn://svn.ffmpeg.org/ffmpeg/trunk

Introduce the function do_lavfi_pixfmts(), and use it for generating a
pixfmts test for each different filter.

Originally committed as revision 24654 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24653 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24652 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24651 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24650 to svn://svn.ffmpeg.org/ffmpeg/trunk

The 'tar' variable should be set to a command writing a tar archive
of the named files to stdout, typically "tar c" or "tar cf -"

Originally committed as revision 24649 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24648 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24647 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24646 to svn://svn.ffmpeg.org/ffmpeg/trunk

Add the lavfi-showfiltfmts dependency in the Makefile, and correctly
use the $target_exec and $target_path variables for invoking the
lavfi-showfiltfmts tool.

Originally committed as revision 24645 to svn://svn.ffmpeg.org/ffmpeg/trunk

otherwise the test will be running whatever ffmpeg is installed on the
host system.

Originally committed as revision 24644 to svn://svn.ffmpeg.org/ffmpeg/trunk

test output files, and add a prefix with the name of the test.
Make per-filter grouping of the generated output files easier, which
is more useful than per-pixel-format grouping.

Originally committed as revision 24643 to svn://svn.ffmpeg.org/ffmpeg/trunk

Consistent with the lavfi pixdesc test code, and slightly improve
readability.

Originally committed as revision 24642 to svn://svn.ffmpeg.org/ffmpeg/trunk

test results and references depend on machine endianess.

Originally committed as revision 24641 to svn://svn.ffmpeg.org/ffmpeg/trunk

simpler and consistent with the names of the other lavfi tests.

Originally committed as revision 24640 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24639 to svn://svn.ffmpeg.org/ffmpeg/trunk

unchanged bytes) in the horizontal simple loopfilter. This makes the filter
quite a bit faster in itself (~30 cycles less on Core1), probably mostly
because we don't need a complex 4x4 transpose, but only a simple byte
interleave. Also allows using pextrw on SSE4, which speeds up even more
(e.g. 25% faster on Core i7).

Originally committed as revision 24638 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Nick Brereton

Originally committed as revision 24637 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 31879 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

Originally committed as revision 24634 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24632 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24631 to svn://svn.ffmpeg.org/ffmpeg/trunk

can be known exactly, so larger frame sizes can be safely encoded without buffer
overwrite.

Originally committed as revision 24630 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24629 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24628 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24627 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24626 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24625 to svn://svn.ffmpeg.org/ffmpeg/trunk

function.

Originally committed as revision 24624 to svn://svn.ffmpeg.org/ffmpeg/trunk