/* assume b>0 */
#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
#define ABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#define MIN(a,b) ((a) > (b) ? (b) : (a))
/* bit output */
}
#endif
-
static inline uint8_t* pbBufPtr(PutBitContext *s)
{
#ifdef ALT_BITSTREAM_WRITER
/* math */
int ff_gcd(int a, int b);
+static inline int ff_sqrt(int a)
+{
+ int ret=0;
+ int s;
+ int ret_sq=0;
+
+ for(s=15; s>=0; s--){
+ int b= ret_sq + (1<<(s*2)) + (ret<<s)*2;
+ if(b<=a){
+ ret_sq=b;
+ ret+= 1<<s;
+ }
+ }
+ return ret;
+}
+#if __CPU__ >= 686 && !defined(RUNTIME_CPUDETECT)
+#define COPY3_IF_LT(x,y,a,b,c,d)\
+asm volatile (\
+ "cmpl %0, %3 \n\t"\
+ "cmovl %3, %0 \n\t"\
+ "cmovl %4, %1 \n\t"\
+ "cmovl %5, %2 \n\t"\
+ : "+r" (x), "+r" (a), "+r" (c)\
+ : "r" (y), "r" (b), "r" (d)\
+);
+#else
+#define COPY3_IF_LT(x,y,a,b,c,d)\
+if((y)<(x)){\
+ (x)=(y);\
+ (a)=(b);\
+ (c)=(d);\
+}
+#endif
+
#define CLAMP_TO_8BIT(d) ((d > 0xff) ? 0xff : (d < 0) ? 0 : d)
#endif