[FFmpeg-devel] [PATCH 2/3] checkasm: add test for bwdif

[James Darnley <jdarnley@obe.tv>]

---
 tests/checkasm/Makefile   |  1 +
 tests/checkasm/checkasm.c |  3 ++
 tests/checkasm/checkasm.h |  1 +
 tests/checkasm/vf_bwdif.c | 70 +++++++++++++++++++++++++++++++++++++++
 tests/fate/checkasm.mak   |  1 +
 5 files changed, 76 insertions(+)
 create mode 100644 tests/checkasm/vf_bwdif.c

diff --git a/tests/checkasm/Makefile b/tests/checkasm/Makefile
index a6f06c7007..b6a43f181f 100644
--- a/tests/checkasm/Makefile
+++ b/tests/checkasm/Makefile
@@ -40,6 +40,7 @@ CHECKASMOBJS-$(CONFIG_AVCODEC)          += $(AVCODECOBJS-yes)
 # libavfilter tests
 AVFILTEROBJS-$(CONFIG_AFIR_FILTER) += af_afir.o
 AVFILTEROBJS-$(CONFIG_BLEND_FILTER) += vf_blend.o
+AVFILTEROBJS-$(CONFIG_BWDIF_FILTER)      += vf_bwdif.o
 AVFILTEROBJS-$(CONFIG_COLORSPACE_FILTER) += vf_colorspace.o
 AVFILTEROBJS-$(CONFIG_EQ_FILTER)         += vf_eq.o
 AVFILTEROBJS-$(CONFIG_GBLUR_FILTER)      += vf_gblur.o
diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index e96d84a7da..5e729cf0e0 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -179,6 +179,9 @@ static const struct {
     #if CONFIG_BLEND_FILTER
         { "vf_blend", checkasm_check_blend },
     #endif
+    #if CONFIG_BWDIF_FILTER
+        { "vf_bwdif", checkasm_check_vf_bwdif },
+    #endif
     #if CONFIG_COLORSPACE_FILTER
         { "vf_colorspace", checkasm_check_colorspace },
     #endif
diff --git a/tests/checkasm/checkasm.h b/tests/checkasm/checkasm.h
index 8744a81218..e9e73c6fa0 100644
--- a/tests/checkasm/checkasm.h
+++ b/tests/checkasm/checkasm.h
@@ -82,6 +82,7 @@ void checkasm_check_utvideodsp(void);
 void checkasm_check_v210dec(void);
 void checkasm_check_v210enc(void);
 void checkasm_check_vc1dsp(void);
+void checkasm_check_vf_bwdif(void);
 void checkasm_check_vf_eq(void);
 void checkasm_check_vf_gblur(void);
 void checkasm_check_vf_hflip(void);
diff --git a/tests/checkasm/vf_bwdif.c b/tests/checkasm/vf_bwdif.c
new file mode 100644
index 0000000000..e27f9b7494
--- /dev/null
+++ b/tests/checkasm/vf_bwdif.c
@@ -0,0 +1,70 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <string.h>
+#include "checkasm.h"
+#include "libavcodec/internal.h"
+#include "libavfilter/bwdif.h"
+
+#define WIDTH 256
+
+#define randomize_buffers(buf0, buf1, mask, count) \
+    for (size_t i; i < count; i++) \
+        buf0[i] = buf1[i] = rnd() & mask
+
+void checkasm_check_vf_bwdif(void)
+{
+    BWDIFContext ctx_8, ctx_10, ctx_16;
+
+    ff_bwdif_init_filter_line(&ctx_8, 8);
+    ff_bwdif_init_filter_line(&ctx_10, 10);
+    ff_bwdif_init_filter_line(&ctx_16, 16);
+
+    if (check_func(ctx_8.filter_line, "bwdif8")) {
+        uint8_t prev0[9*WIDTH], prev1[9*WIDTH];
+        uint8_t next0[9*WIDTH], next1[9*WIDTH];
+        uint8_t cur0[9*WIDTH], cur1[9*WIDTH];
+        uint8_t dst0[WIDTH], dst1[WIDTH];
+
+        declare_func(void, void *dst, void *prev, void *cur, void *next,
+                        int w, int prefs, int mrefs, int prefs2, int mrefs2,
+                        int prefs3, int mrefs3, int prefs4, int mrefs4,
+                        int parity, int clip_max);
+
+        randomize_buffers(prev0, prev1, 0xff, 9*WIDTH);
+        randomize_buffers(next0, next1, 0xff, 9*WIDTH);
+        randomize_buffers(cur0, cur1, 0xff, 9*WIDTH);
+
+        call_ref(dst0, prev0 + 4*WIDTH, cur0 + 4*WIDTH, next0 + 4*WIDTH, WIDTH,
+                WIDTH, -WIDTH, 2*WIDTH, -2*WIDTH, 3*WIDTH, -3*WIDTH, 4*WIDTH, -4*WIDTH,
+                0, 0xff);
+        call_new(dst1, prev1 + 4*WIDTH, cur1 + 4*WIDTH, next1 + 4*WIDTH, WIDTH,
+                WIDTH, -WIDTH, 2*WIDTH, -2*WIDTH, 3*WIDTH, -3*WIDTH, 4*WIDTH, -4*WIDTH,
+                0, 0xff);
+
+        if (memcmp(dst0, dst1, WIDTH)
+                || memcmp(prev0, prev1, sizeof prev0)
+                || memcmp(next0, next1, sizeof next0)
+                || memcmp(cur0, cur1, sizeof cur0))
+            fail();
+        bench_new(dst1, prev1 + 4*WIDTH, cur1 + 4*WIDTH, next1 + 4*WIDTH, WIDTH,
+                WIDTH, -WIDTH, 2*WIDTH, -2*WIDTH, 3*WIDTH, -3*WIDTH, 4*WIDTH, -4*WIDTH,
+                0, 0xff);
+    }
+    report("bwdif8");
+}
diff --git a/tests/fate/checkasm.mak b/tests/fate/checkasm.mak
index a4e95541f5..6a7d4a1226 100644
--- a/tests/fate/checkasm.mak
+++ b/tests/fate/checkasm.mak
@@ -37,6 +37,7 @@ FATE_CHECKASM = fate-checkasm-aacpsdsp                                  \
                 fate-checkasm-v210enc                                   \
                 fate-checkasm-vc1dsp                                    \
                 fate-checkasm-vf_blend                                  \
+                fate-checkasm-vf_bwdif                                  \
                 fate-checkasm-vf_colorspace                             \
                 fate-checkasm-vf_eq                                     \
                 fate-checkasm-vf_gblur                                  \
-- 
2.39.1

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