libavcodec/ffv1dec.c:493: error: Buffer Overrun L2
  Offset: [1, 138] (⇐ [0, 11] + [1, 127]) Size: 8 by call to `read_quant_tables`.

libavcodec/ffv1dec.c:448:1: Parameter `f->quant_tables[*]`
446. }
447. 
448. static int read_extra_header(FFV1Context *f)
     ^
449. {
450.     RangeCoder *const c = &f->c;

libavcodec/ffv1dec.c:493:31: Call
491.         return AVERROR_INVALIDDATA;
492.     for (i = 0; i < f->quant_table_count; i++) {
493.         f->context_count[i] = read_quant_tables(c, f->quant_tables[i]);
                                   ^
494.         if (f->context_count[i] < 0) {
495.             av_log(f->avctx, AV_LOG_ERROR, "read_quant_table error\n");

libavcodec/ffv1dec.c:433:1: Parameter `*quant_table`
  431. }
  432. 
  433. static int read_quant_tables(RangeCoder *c,
       ^
  434.                              int16_t quant_table[MAX_CONTEXT_INPUTS][256])
  435. {

libavcodec/ffv1dec.c:440:26: Call
  438. 
  439.     for (i = 0; i < 5; i++) {
  440.         context_count *= read_quant_table(c, quant_table[i], context_count);
                                ^
  441.         if (context_count > 32768U) {
  442.             return -1;

libavcodec/ffv1dec.c:426:10: <Offset trace>
424.     }
425. 
426.     for (i = 1; i < 128; i++)
              ^
427.         quant_table[256 - i] = -quant_table[i];
428.     quant_table[128] = -quant_table[127];

libavcodec/ffv1dec.c:426:10: Assignment
    424.     }
    425. 
    426.     for (i = 1; i < 128; i++)
                  ^
    427.         quant_table[256 - i] = -quant_table[i];
    428.     quant_table[128] = -quant_table[127];

libavcodec/ffv1dec.c:406:1: <Length trace>
404. }
405. 
406. static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale)
     ^
407. {
408.     int v;

libavcodec/ffv1dec.c:406:1: Parameter `*quant_table`
    404. }
    405. 
    406. static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale)
         ^
    407. {
    408.     int v;

libavcodec/ffv1dec.c:427:33: Array access: Offset: [1, 138] (⇐ [0, 11] + [1, 127]) Size: 8 by call to `read_quant_tables` 
    425. 
    426.     for (i = 1; i < 128; i++)
    427.         quant_table[256 - i] = -quant_table[i];
                                         ^
    428.     quant_table[128] = -quant_table[127];
    429. 
