47 const int high_bit_depth = bit_depth > 8;
50 if (
have_neon(cpu_flags) && !high_bit_depth) {
h264_chroma_mc_func put_h264_chroma_pixels_tab[4]
static atomic_int cpu_flags
Macro definitions for various function/variable attributes.
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
av_cold void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth)
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
GLint GLenum GLboolean GLsizei stride
void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
h264_chroma_mc_func avg_h264_chroma_pixels_tab[4]
void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)