add random stuffs

mod2mp3.cpp

@@ -0,0 +1,61 @@
+/* not sure will this run on windows
+ *
+ * you can actually use any audio format not just mp3 i had no idea how to call it
+ *
+ * compiles with:
+ * g++ mod2mp3.cpp -o mod2mp3 -O3 -lopenmpt
+ *
+ * usage: ./mod2mp3 <input.(xm/mod/stm/s3m/it/etc.)> <output.(mp3/wav/ogg/etc.)>
+ */
+
+#include <bits/stdc++.h>
+#include <libopenmpt/libopenmpt.hpp>
+
+#define BUFFER_SIZE 480
+#define SAMPLE_RATE 48000
+
+int main(int argc, char* argv[]) {
+    if (argc < 3) {
+        std::cout << "nouuuuuuuuu\n";
+        return 1;
+    }
+    std::ifstream file(argv[1], std::ios::binary);
+    openmpt::module mod(file);
+
+    std::string command = "ffmpeg -f s16le -ar " + std::to_string(SAMPLE_RATE) + " -ac 2 -i pipe: ";
+    for (char* c = argv[2]; *c; c++) {
+        if (*c == ' ') command += '\\';
+        command += *c;
+    }
+    std::cout << command << '\n';
+    FILE* pipe = popen(command.c_str(), "w");
+    if (!pipe) {
+        std::cerr << "Error: failed to open pipe\n";
+        return 1;
+    }
+
+    mod.set_render_param(openmpt::module::render_param::RENDER_INTERPOLATIONFILTER_LENGTH, 1); // no interpolation
+    mod.set_render_param(openmpt::module::render_param::RENDER_VOLUMERAMPING_STRENGTH, 0); // no volume ramping
+
+    try {
+        int16_t interleaved_buffer[BUFFER_SIZE * 2];
+        while (true) {
+            int16_t pcm_buffer_right[BUFFER_SIZE];
+            int16_t pcm_buffer_left[BUFFER_SIZE];
+            std::size_t count = mod.read(SAMPLE_RATE, BUFFER_SIZE, pcm_buffer_left, pcm_buffer_right);
+            if (count == 0) break;
+            for (size_t i = 0; i < count; i++) {
+                interleaved_buffer[2 * i] = pcm_buffer_left[i];
+                interleaved_buffer[2 * i + 1] = pcm_buffer_right[i];
+            }
+            fwrite(interleaved_buffer, sizeof(int16_t), count * 2, pipe);
+        }
+        pclose(pipe);
+    }
+    catch (const std::exception& e) {
+        std::cerr << "Error: " << std::string(e.what() ? e.what() : "unknown error") << '\n';
+        return 1;
+    }
+
+    return 0;
+}