Description
Platform: MSYS2 / Clang 11.0.0 on KFR 4.2.0
One of my projects seemed to have odd behavior with audio IO, so I made a test of audio input and output.
#define KFR_ENABLE_WAV 1
#include <kfr/all.hpp>
#include <iostream>
using std::cout;
using namespace kfr;
int main() {
univector<float> audio;
univector2d<float> audio_channels;
audio_reader_wav<float> reader (open_file_for_reading("input.wav"));
audio_channels = reader.read_channels();
audio_writer_wav<float> writer(open_file_for_writing("output.wav"), reader.format());
univector<float> interleaved_audio = interleave(audio_channels);
if (interleaved_audio.size() == reader.format().length * reader.format().channels) {
cout << "yes\n";
}
writer.write(interleaved_audio.data(), reader.format().length * reader.format().channels);
return 0;
}This should just create a file identical output.wav that is identical to input.wav. I included a check to see if the audio that audio_reader_wav read in was correct, and it was since it outputs yes in the if statement, so I know that audio_reader_wav read in the correct amount of data.
My input.wav file was in stereo 44.1khz containing 443161 samples and it is a bit below 4 mb, at about while the size of the audio output I get is only 4 kb, also at stereo 44.1khz but only 506 samples . I don't get why this is happening because I specified the correct size to write in my call to write(), while the output I get is several orders of magnitude below the intended output. What should I do to solve this?
Edit: On closer inspection it seems like the 506 samples of output.wav are the first 506 samples of input.wav.