This is simpler and avoids an invalid shift by 32 in the
aligned case.
Signed-off-by: Mans Rullgard <mans@mansr.com>
*/
static inline int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes){
+ static const uint32_t tab[4] = {
+ AV_BE2NE32C(0x37c511f2), AV_BE2NE32C(0xf237c511),
+ AV_BE2NE32C(0x11f237c5), AV_BE2NE32C(0xc511f237),
+ };
int i, off;
uint32_t c;
const uint32_t* buf;
off = (intptr_t)inbuffer & 3;
buf = (const uint32_t*) (inbuffer - off);
- c = av_be2ne32((0x37c511f2 >> (off*8)) | (0x37c511f2 << (32-(off*8))));
+ c = tab[off];
bytes += 3 + off;
for (i = 0; i < bytes/4; i++)
obuf[i] = c ^ buf[i];