From 124526ba1aee5b616b9f6cf2da6b5db85d05711d Mon Sep 17 00:00:00 2001
From: Petru Rares Sincraian <psincraian@outlook.com>
Date: Sun, 20 Mar 2016 09:54:07 +0100
Subject: [PATCH] Added a selftest to libavutil/display.c
- Check if av_display_rotation_get() gets the correct degrees
- Check if av_display_rotation_set() sets the correct matrix
- Check if av_display_matrix_flip() changes correct the matrix
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavutil/Makefile | 1 +
libavutil/display.c | 43 ++++++++++++++++++++++++++++++++++++++++
libavutil/display.h | 1 +
tests/fate/libavutil.mak | 4 ++++
tests/ref/fate/display | 16 +++++++++++++++
5 files changed, 65 insertions(+)
create mode 100644 tests/ref/fate/display
diff --git a/libavutil/Makefile b/libavutil/Makefile
index 58df75a94e4..7a3076fe106 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -181,6 +181,7 @@ TESTPROGS = adler32 \
crc \
des \
dict \
+ display \
error \
eval \
file \
diff --git a/libavutil/display.c b/libavutil/display.c
index a0076e067bb..ceed4927566 100644
--- a/libavutil/display.c
+++ b/libavutil/display.c
@@ -71,3 +71,46 @@ void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip)
for (i = 0; i < 9; i++)
matrix[i] *= flip[i % 3];
}
+
+#ifdef TEST
+
+static void print_matrix(int32_t matrix[9])
+{
+ int i, j;
+
+ for (i = 0; i < 3; ++i) {
+ for (j = 0; j < 3 - 1; ++j)
+ printf("%d ", matrix[i*3 + j]);
+
+ printf("%d\n", matrix[i*3 + j]);
+ }
+}
+
+int main(void)
+{
+ int32_t matrix[9];
+
+ // Set the matrix to 90 degrees
+ av_display_rotation_set(matrix, 90);
+ print_matrix(matrix);
+ printf("degrees: %f\n", av_display_rotation_get(matrix));
+
+ // Set the matrix to -45 degrees
+ av_display_rotation_set(matrix, -45);
+ print_matrix(matrix);
+ printf("degrees: %f\n", av_display_rotation_get(matrix));
+
+ // flip horizontal
+ av_display_matrix_flip(matrix, 1, 0);
+ print_matrix(matrix);
+ printf("degrees: %f\n", av_display_rotation_get(matrix));
+
+ // flip vertical
+ av_display_matrix_flip(matrix, 0, 1);
+ print_matrix(matrix);
+ printf("degrees: %f\n", av_display_rotation_get(matrix));
+
+ return 0;
+
+}
+#endif
diff --git a/libavutil/display.h b/libavutil/display.h
index c0cfee326d1..39c15ee6b83 100644
--- a/libavutil/display.h
+++ b/libavutil/display.h
@@ -22,6 +22,7 @@
#define AVUTIL_DISPLAY_H
#include <stdint.h>
+#include "common.h"
/**
* The display transformation matrix specifies an affine transformation that
diff --git a/tests/fate/libavutil.mak b/tests/fate/libavutil.mak
index 5d8e0e2fdc9..7f4fb7a87b2 100644
--- a/tests/fate/libavutil.mak
+++ b/tests/fate/libavutil.mak
@@ -99,6 +99,10 @@ FATE_LIBAVUTIL-$(CONFIG_PIXELUTILS) += fate-pixelutils
fate-pixelutils: libavutil/pixelutils-test$(EXESUF)
fate-pixelutils: CMD = run libavutil/pixelutils-test
+FATE_LIBAVUTIL += fate-display
+fate-display: libavutil/display-test$(EXESUF)
+fate-display: CMD = run libavutil/display-test
+
FATE_LIBAVUTIL += fate-random_seed
fate-random_seed: libavutil/random_seed-test$(EXESUF)
fate-random_seed: CMD = run libavutil/random_seed-test
diff --git a/tests/ref/fate/display b/tests/ref/fate/display
new file mode 100644
index 00000000000..251e7e0cdf1
--- /dev/null
+++ b/tests/ref/fate/display
@@ -0,0 +1,16 @@
+0 65536 0
+-65536 0 0
+0 0 1073741824
+degrees: -90.000000
+46340 -46340 0
+46340 46340 0
+0 0 1073741824
+degrees: 45.000000
+-46340 -46340 0
+-46340 46340 0
+0 0 1073741824
+degrees: 135.000000
+-46340 46340 0
+-46340 -46340 0
+0 0 1073741824
+degrees: -135.000000
--
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