av_cold void ff_vp8dsp_init_riscv(VP8DSPContext *c)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
#define AV_CPU_FLAG_RVB_ADDR
Address bit-manipulations.
void ff_vp8_idct_dc_add4y_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride)
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
void ff_vp8_idct_dc_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride)
#define AV_CPU_FLAG_RVV_I32
Vectors of 8/16/32-bit int's */.
void ff_vp8_idct_dc_add4uv_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride)
#define flags(name, subs,...)
The exact code depends on how similar the blocks are and how related they are to the block