Add regression tests for DC coefficient differences beyond 16 bits (#270)

Signed-off-by: kpchoi <kp5.choi@ax.samsung.com>
Co-authored-by: kpchoi <kp5.choi@ax.samsung.com>

Author: kpchoi

CMakeLists.txt

@@ -326,6 +326,27 @@ set_tests_properties(decode_unconst PROPERTIES
     RUN_SERIAL TRUE
 )
 
+# Test - encode with an all-ones quantization matrix, which saturates the quantizer
+# and makes the DC difference between neighboring blocks exceed 16 bits
+add_test(NAME encode_qmatrix COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/oapv_app_enc -i ${CMAKE_CURRENT_SOURCE_DIR}/test/sequence/pattern1_yuv422p10le_320x240_25fps.y4m --max-au 2 -q 0 --q-matrix-c0 "1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1" --q-matrix-c1 "1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1" --q-matrix-c2 "1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1" --hash -r rec_qmatrix.yuv -o out_qmatrix.oapv)
+set_tests_properties(encode_qmatrix PROPERTIES
+    TIMEOUT 20
+    FAIL_REGULAR_EXPRESSION "Encoded frame count               = 0"
+    PASS_REGULAR_EXPRESSION "Encoded frame count               = 2"
+    RUN_SERIAL TRUE
+)
+
+# Test - decode the all-ones quantization matrix bitstream
+add_test(NAME decode_qmatrix COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/oapv_app_dec -i out_qmatrix.oapv -v 3 --hash)
+set_tests_properties(decode_qmatrix PROPERTIES
+    TIMEOUT 20
+    DEPENDS encode_qmatrix
+    FAIL_REGULAR_EXPRESSION "Decoded frame count               = 0"
+    PASS_REGULAR_EXPRESSION "Decoded frame count               = 2"
+    PASS_REGULAR_EXPRESSION ".*hash:match.*"
+    RUN_SERIAL TRUE
+)
+
 # Test - decode qp_A.apv
 add_test(NAME decode_qp_A COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/oapv_app_dec -i ${CMAKE_CURRENT_SOURCE_DIR}/test/bitstream/qp_A.apv -v 3 --hash)
 set_tests_properties(decode_qp_A PROPERTIES
@@ -371,6 +392,15 @@ set_tests_properties(decode_qp_E PROPERTIES
     PASS_REGULAR_EXPRESSION ".*hash:match.*"
 )
 
+# Test - decode qp_F.apv
+add_test(NAME decode_qp_F COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/oapv_app_dec -i ${CMAKE_CURRENT_SOURCE_DIR}/test/bitstream/qp_F.apv -v 3 --hash)
+set_tests_properties(decode_qp_F PROPERTIES
+    TIMEOUT 20
+    FAIL_REGULAR_EXPRESSION "Decoded frame count               = 0"
+    PASS_REGULAR_EXPRESSION "Decoded frame count               = 2"
+    PASS_REGULAR_EXPRESSION ".*hash:match.*"
+)
+
 # Test - decode syn_A.apv
 add_test(NAME decode_syn_A COMMAND ${CMAKE_CURRENT_BINARY_DIR}/bin/oapv_app_dec -i ${CMAKE_CURRENT_SOURCE_DIR}/test/bitstream/syn_A.apv -v 3 --hash)
 set_tests_properties(decode_syn_A PROPERTIES

test/README.md

@@ -17,6 +17,7 @@
 | 10  | qp_E           | Set different QP  between luma and chroma                    | 422-10              | 4.1   | 2    | 60 fps     | 3840x2160  | 3          | 7d626cea95f8d7a4b3f1f6e3d10e923c |
 | 11  | syn_A          | Exercise a synthetic   image with QP = 0 and QP = 51         | 422-10              | 4.1   | 2    | 60 fps     | 1920x1080  | 2          | 7b0cc8fdffdfca860dcee9b69b051053 |
 | 12  | syn_B          | Exercise a synthetic   image with Tile QP variation in Frame | 422-10              | 4.1   | 2    | 60 fps     | 1920x1080  | 2          | b87a59443b009e9241393e6e1a927d61 |
+| 13  | qp_F           | DC coefficient difference exceeding 16 bits at min. QP (=0)  | 422-12              | 1     | 2    | 25 fps     | 320x240    | 2          | 36eb37bc3c9ac0e7daf00d59b70214e2 |
 
 ## Test sequence
 "sequence" folder has the uncompressed video sequence for encoder testing.