I'm setting an audio program on my raspberry using libsox, the developer library of SoX. And for instance I need to make it play my input mp3 file to my stdout output so I can hear the song with my earpiece connected to the jack port of the raspberry.
So I used this code, but the "-" in the filetype of the function "sox_open_write()" doesn't transfer my song into the stdout. I got this error:
no handler for given file type
-' exe1: example1.c:99: main: Assertionin = sox_open_read(argv[1], NULL, >> NULL,"-")' failed.
Here is the code :
https://github.com/dmkrepo/libsox/blob/master/src/example1.c#L145
I've tried to output the audio into another file and it is working. Also tried to look at the function original developper made in fossies libsox website.
assert(out = sox_open_write(argv[2], &in->signal, NULL, "-", NULL, NULL));
For instance I just changed one of the parameter of the function. In the manual it's supposed to transfer the audio file to stdout output. But an error occurs
I just expect the program to play a single song.