fate/hapAlphaOnly : add test for hap alpha only decoding

tests/fate/video.mak

@@ -192,6 +192,12 @@ fate-hapqa-snappy1-127x71: CMD = framecrc -i $(TARGET_SAMPLES)/hap/HAPQA_Snappy_
 FATE_HAP += fate-hapqa-snappy16-127x71
 fate-hapqa-snappy16-127x71: CMD = framecrc -i $(TARGET_SAMPLES)/hap/HAPQA_Snappy_16chunk_127x1.mov
 
+FATE_HAP += fate-hap-alpha-only-nosnappy-128x72
+fate-hap-alpha-only-nosnappy-128x72: CMD = framecrc -i $(TARGET_SAMPLES)/hap/HapAlphaOnly_NoSnappy_128x72.mov -pix_fmt gray8
+
+FATE_HAP += fate-hap-alpha-only-snappy-127x71
+fate-hap-alpha-only-snappy-127x71: CMD = framecrc -i $(TARGET_SAMPLES)/hap/HapAlphaOnly_snappy1chunk_127x71.mov -pix_fmt gray8
+
 FATE_VIDEO-$(call DEMDEC, MOV, HAP) += $(FATE_HAP)
 fate-hap: $(FATE_HAP)
 

tests/ref/fate/hap-alpha-only-nosnappy-128x72

@@ -0,0 +1,6 @@
+#tb 0: 1/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 128x72
+#sar 0: 1/1
+0,          0,          0,        1,     9216, 0x5967036f

tests/ref/fate/hap-alpha-only-snappy-127x71

@@ -0,0 +1,6 @@
+#tb 0: 1/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 127x71
+#sar 0: 1/1
+0,          0,          0,        1,     9017, 0xc390c38c