Add fate test for solid colour lagarith frames.

tests/fate/lossless-video.mak

@@ -19,6 +19,9 @@ fate-lagarith-yuy2: CMD = framecrc -i $(SAMPLES)/lagarith/lag-yuy2.avi
 FATE_LAGARITH += fate-lagarith-yv12
 fate-lagarith-yv12: CMD = framecrc -i $(SAMPLES)/lagarith/lag-yv12.avi
 
+FATE_LAGARITH += fate-lagarith-red
+fate-lagarith-red: CMD = framecrc -i $(SAMPLES)/lagarith/lagarith-red.avi
+
 FATE_LOSSLESS_VIDEO-$(call DEMDEC, AVI, LAGARITH) += $(FATE_LAGARITH)
 fate-lagarith: $(FATE_LAGARITH)
 

tests/ref/fate/lagarith-red

@@ -0,0 +1,26 @@
+#tb 0: 1/25
+0,          0,          0,        1,   230400, 0x67dfe576
+0,          1,          1,        1,   230400, 0x67dfe576
+0,          2,          2,        1,   230400, 0x67dfe576
+0,          3,          3,        1,   230400, 0x67dfe576
+0,          4,          4,        1,   230400, 0x67dfe576
+0,          5,          5,        1,   230400, 0x67dfe576
+0,          6,          6,        1,   230400, 0x67dfe576
+0,          7,          7,        1,   230400, 0x67dfe576
+0,          8,          8,        1,   230400, 0x67dfe576
+0,          9,          9,        1,   230400, 0x67dfe576
+0,         10,         10,        1,   230400, 0x67dfe576
+0,         11,         11,        1,   230400, 0x67dfe576
+0,         12,         12,        1,   230400, 0x67dfe576
+0,         13,         13,        1,   230400, 0x67dfe576
+0,         14,         14,        1,   230400, 0x67dfe576
+0,         15,         15,        1,   230400, 0x67dfe576
+0,         16,         16,        1,   230400, 0x67dfe576
+0,         17,         17,        1,   230400, 0x67dfe576
+0,         18,         18,        1,   230400, 0x67dfe576
+0,         19,         19,        1,   230400, 0x67dfe576
+0,         20,         20,        1,   230400, 0x67dfe576
+0,         21,         21,        1,   230400, 0x67dfe576
+0,         22,         22,        1,   230400, 0x67dfe576
+0,         23,         23,        1,   230400, 0x67dfe576
+0,         24,         24,        1,   230400, 0x67dfe576