PCM to MP3 audio file (with lame library)

Pcm2mp3.c

#include <stdio.h> #include <stdlib.h> #include <lame.h> #define INBUFSIZE 4096 #define MP3BUFSIZE (int
	) (1.25 * inbufsize) + 7200 int encode (char* inpath, char* outpath) {int status = 0;
	Lame_global_flags* GFP;
	int Ret_code;
	File* INFP;
	File* OUTFP;
	short* Input_buffer;
	int input_samples;
	char* Mp3_buffer;

	int mp3_bytes;
	GFP = Lame_init ();
		if (GFP = = NULL) {printf ("Lame_init failed/n");
		status =-1;
	Goto exit;
	} Ret_code = Lame_init_params (GFP);
		if (Ret_code < 0) {printf ("Lame_init_params returned%d/n", Ret_code);
		status =-1;
	Goto Close_lame;
	} INFP = fopen (Inpath, "RB");

	OUTFP = fopen (Outpath, "WB");
	Input_buffer = (short*) malloc (inbufsize*2);

	Mp3_buffer = (char*) malloc (mp3bufsize);
		do {input_samples = Fread (Input_buffer, 2, Inbufsize, INFP);
		printf ("Input_samples is%d./n", input_samples);
		fprintf (stderr, "Input_samples is%d./n", input_samples); Mp3_bytes = lame_encode_buffer_interleaved (GFP, Input_buffER,INPUT_SAMPLES/2, Mp3_buffer, mp3bufsize);
		fprintf (stderr, "Mp3_bytes is%d./n", mp3_bytes);
			if (Mp3_bytes < 0) {printf ("lame_encode_buffer_interleaved returned%d/n", mp3_bytes);
			status =-1;
		Goto Free_buffers;
		} else if (Mp3_bytes > 0) {fwrite (Mp3_buffer, 1, mp3_bytes, OUTFP);

	}}while (Input_samples = = inbufsize);
	Mp3_bytes = Lame_encode_flush (GFP, Mp3_buffer, sizeof (Mp3_buffer));
		if (Mp3_bytes > 0) {printf ("Writing%d mp3 bytes/n", mp3_bytes);
	Fwrite (Mp3_buffer, 1, mp3_bytes, OUTFP);
	} free_buffers:free (Mp3_buffer);

	Free (input_buffer);
	Fclose (OUTFP);
Fclose (INFP);
Close_lame:lame_close (GFP);
Exit:return status;
	} int main (int argc, char** argv) {if (ARGC < 3) {printf ("Usage:lame_test rawinfile mp3outfile/n");
	} encode (argv[1], argv[2]);
return 0; }