#include "rawdec.h"
#include "libavutil/intreadwrite.h"
+#include "libavcodec/internal.h"
#define SEQ_START_CODE 0x000001b3
#define GOP_START_CODE 0x000001b8
{
uint32_t code= -1;
int pic=0, seq=0, slice=0, pspack=0, vpes=0, apes=0, res=0, sicle=0;
- int i, j;
+ const uint8_t *ptr = p->buf, *end = ptr + p->buf_size;
uint32_t last = 0;
+ int j;
- for(i=0; i<p->buf_size; i++){
- code = (code<<8) + p->buf[i];
+ while (ptr < end) {
+ ptr = avpriv_find_start_code(ptr, end, &code);
if ((code & 0xffffff00) == 0x100) {
switch(code){
case SEQ_START_CODE:
- if (!(p->buf[i+1+3+1+2] & 0x20))
+ if (!(ptr[3 + 1 + 2] & 0x20))
break;
- j = i;
- if (p->buf[j+8] & 2)
+ j = -1;
+ if (ptr[j + 8] & 2)
j+= 64;
- if (j >= p->buf_size)
+ if (j >= end - ptr)
break;
- if (p->buf[j+8] & 1)
+ if (ptr[j + 8] & 1)
j+= 64;
- if (j >= p->buf_size)
+ if (j >= end - ptr)
break;
- if (AV_RB24(p->buf + j + 9) & 0xFFFFFE)
+ if (AV_RB24(ptr + j + 9) & 0xFFFFFE)
break;
seq++;
break;