fate/webp : add test for lossless picture to improve cover

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

tests/fate/image.mak

@@ -358,6 +358,12 @@ fate-tiff: $(FATE_TIFF-yes)
 FATE_WEBP += fate-webp-rgb-lossless
 fate-webp-rgb-lossless: CMD = framecrc -i $(TARGET_SAMPLES)/webp/rgb_lossless.webp
 
+FATE_WEBP += fate-webp-rgb-lena-lossless
+fate-webp-rgb-lena-lossless: CMD = framecrc -i $(TARGET_SAMPLES)/webp/rgb_lena_lossless.webp
+
+FATE_WEBP += fate-webp-rgb-lena-lossless-rgb24
+fate-webp-rgb-lena-lossless-rgb24: CMD = framecrc -i $(TARGET_SAMPLES)/webp/rgb_lena_lossless.webp -pix_fmt rgb24
+
 FATE_WEBP += fate-webp-rgba-lossless
 fate-webp-rgba-lossless: CMD = framecrc -i $(TARGET_SAMPLES)/webp/rgba_lossless.webp
 

tests/ref/fate/webp-rgb-lena-lossless

@@ -0,0 +1,6 @@
+#tb 0: 1/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 128x128
+#sar 0: 0/1
+0,          0,          0,        1,    65536, 0xdfcd01ae

tests/ref/fate/webp-rgb-lena-lossless-rgb24

@@ -0,0 +1,6 @@
+#tb 0: 1/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 128x128
+#sar 0: 0/1
+0,          0,          0,        1,    49152, 0xe0013dee