Add VP8 sign bias code regtest. Not tested by the official conformance suite.

Originally committed as revision 24457 to svn://svn.ffmpeg.org/ffmpeg/trunk

tests/fate2.mak

@@ -281,3 +281,6 @@ FATE2_TESTS += fate-wmapro-2ch
 fate-wmapro-2ch: CMD = pcm -i $(SAMPLES)/wmapro/Beethovens_9th-1_small.wma
 fate-wmapro-2ch: CMP = oneoff
 fate-wmapro-2ch: REF = $(SAMPLES)/wmapro/Beethovens_9th-1_small.pcm
+
+FATE_TESTS += fate-vp8-sign-bias
+fate-vp8-sign-bias: CMD = framemd5  -i $(SAMPLES)/vp8/sintel-signbias.ivf

tests/ref/fate/vp8-sign-bias

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+0, 3750, 614880, ce352e1079535ea058c0e9ad50f7cdb8
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+0, 11250, 614880, 7593a85ab7790eb39d65fc53f769ed8b
+0, 15000, 614880, 52f47f1e0348f3297d9f233fb5405e8b
+0, 18750, 614880, cd51d2c200bfd66e8e1b0fd6b404570f
+0, 22500, 614880, cf535cf0a53e903cd98a9a944b72da6d
+0, 26250, 614880, 1b270fd2b56daa7892102c2885d23201
+0, 30000, 614880, ff373c0c8a4a319c84e72b1c3d76b399