libavcodec/mpegaudioenc.c:672: error: Buffer Overrun L2
  Offset: [0, 13] Size: 12.

libavcodec/mpegaudioenc.c:659:13: <Offset trace>
657. 
658.     for(k=0;k<3;k++) {
659.         for(l=0;l<12;l+=3) {
                 ^
660.             j = 0;
661.             for(i=0;i<s->sblimit;i++) {

libavcodec/mpegaudioenc.c:659:13: Assignment
657. 
658.     for(k=0;k<3;k++) {
659.         for(l=0;l<12;l+=3) {
                 ^
660.             j = 0;
661.             for(i=0;i<s->sblimit;i++) {

libavcodec/mpegaudioenc.c:589:1: <Length trace>
587.  * compared to other encoders :-)
588.  */
589. static void encode_frame(MpegAudioContext *s,
     ^
590.                          unsigned char bit_alloc[MPA_MAX_CHANNELS][SBLIMIT],
591.                          int padding)

libavcodec/mpegaudioenc.c:589:1: Parameter `s->sb_samples[*][*][*]`
587.  * compared to other encoders :-)
588.  */
589. static void encode_frame(MpegAudioContext *s,
     ^
590.                          unsigned char bit_alloc[MPA_MAX_CHANNELS][SBLIMIT],
591.                          int padding)

libavcodec/mpegaudioenc.c:672:38: Array access: Offset: [0, 13] Size: 12
670.                         for(m=0;m<3;m++) {
671.                             float a;
672.                             sample = s->sb_samples[ch][k][l + m][i];
                                          ^
673.                             /* divide by scale factor */
674.                             a = (float)sample * s->scale_factor_inv_table[s->scale_factors[ch][i][k]];
