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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>
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@ -181,6 +181,7 @@ TESTPROGS = adler32 \
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crc \
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des \
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dict \
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display \
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error \
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eval \
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file \
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@ -71,3 +71,46 @@ void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip)
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for (i = 0; i < 9; i++)
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matrix[i] *= flip[i % 3];
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}
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#ifdef TEST
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static void print_matrix(int32_t matrix[9])
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{
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int i, j;
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for (i = 0; i < 3; ++i) {
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for (j = 0; j < 3 - 1; ++j)
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printf("%d ", matrix[i*3 + j]);
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printf("%d\n", matrix[i*3 + j]);
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}
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}
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int main(void)
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{
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int32_t matrix[9];
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// Set the matrix to 90 degrees
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av_display_rotation_set(matrix, 90);
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print_matrix(matrix);
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printf("degrees: %f\n", av_display_rotation_get(matrix));
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// Set the matrix to -45 degrees
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av_display_rotation_set(matrix, -45);
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print_matrix(matrix);
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printf("degrees: %f\n", av_display_rotation_get(matrix));
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// flip horizontal
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av_display_matrix_flip(matrix, 1, 0);
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print_matrix(matrix);
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printf("degrees: %f\n", av_display_rotation_get(matrix));
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// flip vertical
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av_display_matrix_flip(matrix, 0, 1);
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print_matrix(matrix);
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printf("degrees: %f\n", av_display_rotation_get(matrix));
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return 0;
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}
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#endif
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@ -22,6 +22,7 @@
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#define AVUTIL_DISPLAY_H
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#include <stdint.h>
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#include "common.h"
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/**
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* The display transformation matrix specifies an affine transformation that
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@ -99,6 +99,10 @@ FATE_LIBAVUTIL-$(CONFIG_PIXELUTILS) += fate-pixelutils
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fate-pixelutils: libavutil/pixelutils-test$(EXESUF)
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fate-pixelutils: CMD = run libavutil/pixelutils-test
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FATE_LIBAVUTIL += fate-display
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fate-display: libavutil/display-test$(EXESUF)
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fate-display: CMD = run libavutil/display-test
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FATE_LIBAVUTIL += fate-random_seed
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fate-random_seed: libavutil/random_seed-test$(EXESUF)
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fate-random_seed: CMD = run libavutil/random_seed-test
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16
tests/ref/fate/display
Normal file
16
tests/ref/fate/display
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@ -0,0 +1,16 @@
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0 65536 0
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-65536 0 0
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0 0 1073741824
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degrees: -90.000000
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46340 -46340 0
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46340 46340 0
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0 0 1073741824
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degrees: 45.000000
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-46340 -46340 0
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-46340 46340 0
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0 0 1073741824
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degrees: 135.000000
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-46340 46340 0
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-46340 -46340 0
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0 0 1073741824
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degrees: -135.000000
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