lame verwenden um mp3 datei zu lesen und wieder speichern

[musiker]

hi, warum bekomme ich bei folgendem code eine exeption wenn ich read = hip_decode_headers aufrufe? zum code soll noch ein filter implementiert werden...

lg

int main()
{
	int read, write;

    FILE *mp3_in = fopen("music_noisy.mp3", "rb");
    FILE *mp3_out = fopen("music_noisy2.mp3", "wb");

    const int PCM_SIZE = 8192;
    const int MP3_SIZE = 8192;

	short int pcm_buffer[PCM_SIZE*2];
    short int pcm_buffer1[PCM_SIZE];
	short int pcm_buffer2[PCM_SIZE];
    unsigned char mp3_buffer[MP3_SIZE];

	mp3data_struct mp3data = {0};

	memset(pcm_buffer, 0, sizeof(pcm_buffer));
	memset(pcm_buffer1, 0, sizeof(pcm_buffer1));
	memset(pcm_buffer2, 0, sizeof(pcm_buffer2));
	memset(mp3_buffer, 0, sizeof(mp3_buffer));

    lame_t lame = lame_init();
	hip_t l = hip_decode_init();
    lame_set_in_samplerate(lame, 44100);
    lame_set_VBR(lame, vbr_default);
    //lame_set_mode(lame, MONO);
    lame_init_params(lame);

    do {
		read = fread(mp3_buffer, sizeof(unsigned char), MP3_SIZE, mp3_in);
		read = hip_decode_headers(l, mp3_buffer, MP3_SIZE, pcm_buffer1, pcm_buffer2, &mp3data);

		memcpy(pcm_buffer, pcm_buffer1, sizeof(pcm_buffer1));
		memcpy(&pcm_buffer[PCM_SIZE], pcm_buffer2, sizeof(pcm_buffer2));
        write = lame_encode_buffer_interleaved(lame, pcm_buffer, read, mp3_buffer, MP3_SIZE);
        fwrite(mp3_buffer, write, 1, mp3_out);
	} while (read != 0);

	hip_decode_exit(l);
    lame_close(lame);
    fclose(mp3_out);
    fclose(mp3_in);

    return 0;
}