Hello. Some more investigations.
Let say we have a array of float of length = 100 (arrayin): setlength(arrayin,100); A external library fill this array with 80 samples (ouframes). When using that arrayin pure (without any dsp) the sound is pure too. If using: function arraycopy(arrayin : Tarrayfloat): Tarrayfloat; begin result := arrayin; end; ==> Bad noisy sound, even using but if using: function arraycopy(arrayin : Tarrayfloat; outfames: integer): Tarrayfloat; begin SetLength(arrayin, outframes); result := arrayin; end; ===> OK, perfect sound. Why ? _____________________________________ > You shouldn't use Pascal arrays when interfacing with C/C++ code as > especially dynamic arrays have a different format (though you can pass a > pointer to the first array element). Huh, what do you propose instead, I am totally open to new idea ? (But using dynamic arrays gives me lovely results). > Maybe show us how the original C function looks like. All the audio-wrappers use buffers to store the data. I use dynamic arrays for that buffers. In https://github.com/fredvs/uos there are Pascal wrappers to C libraries: uos_Portaudio.pas uos_Mpg123.pas uos_SoundFile.pas uos_Opus.pas uos_AAC.pas uos_SoundTouch.pas ... Thanks. Fre;D Thanks. Fre;D ----- Many thanks ;-) -- View this message in context: http://free-pascal-general.1045716.n5.nabble.com/Array-as-result-in-function-tp5727366p5727378.html Sent from the Free Pascal - General mailing list archive at Nabble.com. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
