AV_SWAP64 604 libavutil/intreadwrite.h # define AV_SWAP64(a, b) AV_SWAP(64, a, b) AV_SWAP64 42 libavutil/x86/intreadwrite.h #define AV_SWAP64 AV_SWAP64 AV_SWAP64 43 libavutil/x86/intreadwrite.h static av_always_inline void AV_SWAP64(void *a, void *b)