I tried to compile the example file for video hashing. At first the compiler couldn't

The example still doesn't work: <div class="snippet-clipboard-content notranslate

add an example : g++ [file].cpp -o [output] -lpHash</cod

example for video test_dctvideohash.cpp not compiling about phash HOT 5 CLOSED

aetilius commented on August 17, 2024

example for video test_dctvideohash.cpp not compiling

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Comments (5)

aetilius commented on August 17, 2024

You should pass these parameters to cmake so it will build it properly.
cmake -DWITH_AUDIO_HASH=1 -DWITH_VIDEO_HASH=1 .

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Avagenzo commented on August 17, 2024

The example still doesn't work:

gcc test_dctvideohash.cpp
test_dctvideohash.cpp: In function 'int main(int, char**)':
test_dctvideohash.cpp:57:46: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 3 has type 'ulong64 {aka long unsigned int}' [-Wformat=]
        printf("hash1[%d]=%llx\n", i, hash1[i]);
                                      ~~~~~~~~^
/tmp/ccRpeyyA.o: In function `main':
test_dctvideohash.cpp:(.text+0xad): undefined reference to `ph_dct_videohash'
test_dctvideohash.cpp:(.text+0x145): undefined reference to `ph_dct_videohash'
test_dctvideohash.cpp:(.text+0x1a4): undefined reference to `ph_dct_videohash_dist'
collect2: error: ld returned 1 exit status

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aetilius commented on August 17, 2024

I am not sure why you are trying to compile it manually. If you do then you need to add all the correct gcc arguments and linker flags. cmake will already compile all the example apps in the examples dir.

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Avagenzo commented on August 17, 2024

Thanks for the hint. I got it running

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